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brdu monoclonal antibody  (Proteintech)


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    Proteintech brdu monoclonal antibody
    METTL3 accelerated replicative senescence in MEFs . ( A ) The protein levels in MEFs transfected with siNC and siMETTL3-1/2/3. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (siMETTL3-1 vs 1: p =0.0113, t =9.328; siMETTL3-2VS 1: p =0.0022, t =21.05; siMETTL3-3 vs 1: p =0.0117, t = 9.155). ( B ) Poly(A)+ RNA was extracted from MEF cells transfected with siNC and siMETTL3 and subjected to RNA dot-blot analysis with an antibody recognizing m6A. Methylene blue staining served as the loading control. ( C ) Western blot assay of p16 expression in MEFs transfected with siNC and siMETTL3. The quantitative results were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; One sample t test (siMETTL3 vs 1, p =0.0006, t =15.36). ( D ) Representative photographs of SA-β-gal staining of MEF cells transfected with siNC and siMETTL3 (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test (siMETTL3 vs siNC, p =0.0025, t =9.407). ( E ) Representative photographs of cells stained with DAPI (blue fluorescence) and <t>BrdU</t> (green fluorescence) in siNC and siMETTL3 transfected MEF cells (scale bar: 400μm). The quantitative results of the ratio (BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test (siMETTL3 vs siNC, p =0.009, t =6.065). ( F ) The mRNA levels in MEFs infected with Lenti-NC and METTL3 lentivirus. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (METTL3VS 1, p =0.0058, t =13.03). ( G ) Poly(A)+ RNA was extracted from MEF cells infected with Lenti-NC and METTL3 lentivirus and subjected to RNA dot-blot analysis with an antibody recognizing m6A. Methylene blue staining served as the loading control. ( H ) Western blot assay of METTL3 and p16 expression in MEFs infected with METTL3 lentivirus. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (METTL3 vs 1, p =0.0342, t =5.271). ( I ) Representative photographs of SA-β-gal staining of MEF cells infected with Lenti-NC and METTL3 lentivirus (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (METTL3 vs Lenti-NC, p =0.0088, t =10.59). ( J ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in Lenti-NC and METTL3 lentivirus infected MEF cells (scale bar: 400μm). The quantitative results of the ratio (BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (METTL3 vs Lenti-NC, p =0.0065, t =12.35).
    Brdu Monoclonal Antibody, supplied by Proteintech, used in various techniques. Bioz Stars score: 95/100, based on 163 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/brdu+monoclonal+antibody/BrdU+Antibody/pmc12834426-37-56-60
    Average 95 stars, based on 163 article reviews
    brdu monoclonal antibody - by Bioz Stars, 2026-09
    95/100 stars

    Images

    1) Product Images from "The Flip Side of the Coin: METTL3 Serves as a Novel Cellular Senescence Accelerator via Negative Regulation of ITGA9"

    Article Title: The Flip Side of the Coin: METTL3 Serves as a Novel Cellular Senescence Accelerator via Negative Regulation of ITGA9

    Journal: Aging and Disease

    doi: 10.14336/AD.2024.1715

    METTL3 accelerated replicative senescence in MEFs . ( A ) The protein levels in MEFs transfected with siNC and siMETTL3-1/2/3. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (siMETTL3-1 vs 1: p =0.0113, t =9.328; siMETTL3-2VS 1: p =0.0022, t =21.05; siMETTL3-3 vs 1: p =0.0117, t = 9.155). ( B ) Poly(A)+ RNA was extracted from MEF cells transfected with siNC and siMETTL3 and subjected to RNA dot-blot analysis with an antibody recognizing m6A. Methylene blue staining served as the loading control. ( C ) Western blot assay of p16 expression in MEFs transfected with siNC and siMETTL3. The quantitative results were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; One sample t test (siMETTL3 vs 1, p =0.0006, t =15.36). ( D ) Representative photographs of SA-β-gal staining of MEF cells transfected with siNC and siMETTL3 (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test (siMETTL3 vs siNC, p =0.0025, t =9.407). ( E ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in siNC and siMETTL3 transfected MEF cells (scale bar: 400μm). The quantitative results of the ratio (BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test (siMETTL3 vs siNC, p =0.009, t =6.065). ( F ) The mRNA levels in MEFs infected with Lenti-NC and METTL3 lentivirus. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (METTL3VS 1, p =0.0058, t =13.03). ( G ) Poly(A)+ RNA was extracted from MEF cells infected with Lenti-NC and METTL3 lentivirus and subjected to RNA dot-blot analysis with an antibody recognizing m6A. Methylene blue staining served as the loading control. ( H ) Western blot assay of METTL3 and p16 expression in MEFs infected with METTL3 lentivirus. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (METTL3 vs 1, p =0.0342, t =5.271). ( I ) Representative photographs of SA-β-gal staining of MEF cells infected with Lenti-NC and METTL3 lentivirus (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (METTL3 vs Lenti-NC, p =0.0088, t =10.59). ( J ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in Lenti-NC and METTL3 lentivirus infected MEF cells (scale bar: 400μm). The quantitative results of the ratio (BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (METTL3 vs Lenti-NC, p =0.0065, t =12.35).
    Figure Legend Snippet: METTL3 accelerated replicative senescence in MEFs . ( A ) The protein levels in MEFs transfected with siNC and siMETTL3-1/2/3. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (siMETTL3-1 vs 1: p =0.0113, t =9.328; siMETTL3-2VS 1: p =0.0022, t =21.05; siMETTL3-3 vs 1: p =0.0117, t = 9.155). ( B ) Poly(A)+ RNA was extracted from MEF cells transfected with siNC and siMETTL3 and subjected to RNA dot-blot analysis with an antibody recognizing m6A. Methylene blue staining served as the loading control. ( C ) Western blot assay of p16 expression in MEFs transfected with siNC and siMETTL3. The quantitative results were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; One sample t test (siMETTL3 vs 1, p =0.0006, t =15.36). ( D ) Representative photographs of SA-β-gal staining of MEF cells transfected with siNC and siMETTL3 (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test (siMETTL3 vs siNC, p =0.0025, t =9.407). ( E ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in siNC and siMETTL3 transfected MEF cells (scale bar: 400μm). The quantitative results of the ratio (BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test (siMETTL3 vs siNC, p =0.009, t =6.065). ( F ) The mRNA levels in MEFs infected with Lenti-NC and METTL3 lentivirus. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (METTL3VS 1, p =0.0058, t =13.03). ( G ) Poly(A)+ RNA was extracted from MEF cells infected with Lenti-NC and METTL3 lentivirus and subjected to RNA dot-blot analysis with an antibody recognizing m6A. Methylene blue staining served as the loading control. ( H ) Western blot assay of METTL3 and p16 expression in MEFs infected with METTL3 lentivirus. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (METTL3 vs 1, p =0.0342, t =5.271). ( I ) Representative photographs of SA-β-gal staining of MEF cells infected with Lenti-NC and METTL3 lentivirus (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (METTL3 vs Lenti-NC, p =0.0088, t =10.59). ( J ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in Lenti-NC and METTL3 lentivirus infected MEF cells (scale bar: 400μm). The quantitative results of the ratio (BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (METTL3 vs Lenti-NC, p =0.0065, t =12.35).

    Techniques Used: Transfection, Dot Blot, Staining, Control, Western Blot, Expressing, Fluorescence, Infection

    ITGA9 staved off senescence in MEFs . ( A ) The mRNA and protein levels of ITGA9 in MEF cells transfected with siNC and siITGA9-1/2/3.Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (siITGA9-1 vs 11: p =0.0002, t =68.12; siITGA9-2 vs 1: p =0.0003, t =63.15 ; siITGA9-3 vs 11: p =0.0111, t =9.410; ) (B) The p16 expression levels in MEF cells transfected with siNC and siITGA9. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (siITGA9 vs 1, p =0.0012, t =28.41). ( C ) Representative photographs of SA-β-gal staining of MEF cells transfected with siNC and siITGA9 (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (siITGA9 vs siNC, p =0.0026, t =19.65). ( D ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in siNC and siITGA9 transfected MEF cells (scale bar: 400μm). The quantitative results of the ratio ( BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (siITGA9 vs siNC, p =0.0144, t =4.138). ( E ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in Lenti-NC and ITGA9 infected MEF cells (scale bar: 400μm). The quantitative results of the ratio ( BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test (ITGA9 vs Lenti-NC, p =0.01, t =5.843). ( F ) The mRNA levels of ITGA9 in MEF cells infected with Lenti-NC or ITGA9 lentivirus. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (ITGA9 vs 1, p =0.0025, t =20.08). ( G ) The ITGA9 and p16 protein expression levels in MEFs infected with Lenti-NC and ITGA9 lentivirus. The results of grayscale scanning were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (ITGA9 vs 1, p =0.0256, t =6.124). ( H ) Representative photographs of SA-β-gal staining of MEF cells infected with Lenti-NC and ITGA9 lentivirus (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (ITGA9 vs Lenti-NC, p =0.0009, t =33.30).
    Figure Legend Snippet: ITGA9 staved off senescence in MEFs . ( A ) The mRNA and protein levels of ITGA9 in MEF cells transfected with siNC and siITGA9-1/2/3.Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (siITGA9-1 vs 11: p =0.0002, t =68.12; siITGA9-2 vs 1: p =0.0003, t =63.15 ; siITGA9-3 vs 11: p =0.0111, t =9.410; ) (B) The p16 expression levels in MEF cells transfected with siNC and siITGA9. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (siITGA9 vs 1, p =0.0012, t =28.41). ( C ) Representative photographs of SA-β-gal staining of MEF cells transfected with siNC and siITGA9 (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (siITGA9 vs siNC, p =0.0026, t =19.65). ( D ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in siNC and siITGA9 transfected MEF cells (scale bar: 400μm). The quantitative results of the ratio ( BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (siITGA9 vs siNC, p =0.0144, t =4.138). ( E ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in Lenti-NC and ITGA9 infected MEF cells (scale bar: 400μm). The quantitative results of the ratio ( BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test (ITGA9 vs Lenti-NC, p =0.01, t =5.843). ( F ) The mRNA levels of ITGA9 in MEF cells infected with Lenti-NC or ITGA9 lentivirus. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (ITGA9 vs 1, p =0.0025, t =20.08). ( G ) The ITGA9 and p16 protein expression levels in MEFs infected with Lenti-NC and ITGA9 lentivirus. The results of grayscale scanning were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (ITGA9 vs 1, p =0.0256, t =6.124). ( H ) Representative photographs of SA-β-gal staining of MEF cells infected with Lenti-NC and ITGA9 lentivirus (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (ITGA9 vs Lenti-NC, p =0.0009, t =33.30).

    Techniques Used: Transfection, Expressing, Staining, Fluorescence, Infection

    METTL3 accelerated cellular senescence by modulating ITGA9 . ( A ) The p16 level in MEF cells transfected with siNC, siMETTL3 or siMETTL3 and siITGA9. The quantitative results were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test ( p =0.0058, t =7.062). ( B ) The p16 level in MEF cells infected with Lenti-NC, METTL3 or METTL3 and ITGA9. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test ( p =0.017, t =7.563). (C, D) Representative photographs of SA-β-gal staining (C) and BrdU incorporation staining (D) of MEF cells transfected with siNC, siMETTL3, siITGA9, or siMETTL3 and siITGA9. The quantitative results were shown on the right. Mean (±SEM), passed normality test: Shapiro-Wilk test; Paired t test (C), n=3, p =0.0044, t =15.02; (D), n=4, p =0.0003, t =19.14). (E, F) Representative photographs of SA-β-gal staining (E) and BrdU incorporation staining (F) of MEF cells infected with Lenti-NC, METTL3, ITGA9 or METTL3 and ITGA9. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test ((E): p =0.0095, t =10.18; (F): p =0.0231, t =6.469).
    Figure Legend Snippet: METTL3 accelerated cellular senescence by modulating ITGA9 . ( A ) The p16 level in MEF cells transfected with siNC, siMETTL3 or siMETTL3 and siITGA9. The quantitative results were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test ( p =0.0058, t =7.062). ( B ) The p16 level in MEF cells infected with Lenti-NC, METTL3 or METTL3 and ITGA9. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test ( p =0.017, t =7.563). (C, D) Representative photographs of SA-β-gal staining (C) and BrdU incorporation staining (D) of MEF cells transfected with siNC, siMETTL3, siITGA9, or siMETTL3 and siITGA9. The quantitative results were shown on the right. Mean (±SEM), passed normality test: Shapiro-Wilk test; Paired t test (C), n=3, p =0.0044, t =15.02; (D), n=4, p =0.0003, t =19.14). (E, F) Representative photographs of SA-β-gal staining (E) and BrdU incorporation staining (F) of MEF cells infected with Lenti-NC, METTL3, ITGA9 or METTL3 and ITGA9. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test ((E): p =0.0095, t =10.18; (F): p =0.0231, t =6.469).

    Techniques Used: Transfection, Infection, Staining, BrdU Incorporation Assay

    Related Articles

    Activity Assay:

    Article Title: Identification of nonfunctional PABPC1L causing oocyte maturation abnormalities and early embryonic arrest in female primary infertility.
    Article Snippet: Oocytes were then stained with 2.5 μM SYTOX Orange (S34861, Invitrogen) for 10 min at room temperature and observed under a laser scanning confocal microscope (Olympus, Tokyo, Japan) with an excitation wavelength of 570 nm. .. The chromatin was classified by its distribution into non-surrounded nucleolus (NSN), surrounded nucleolus (SN), and partially surrounded nucleolus (PSN).37 For transcriptional activity assessment, GV oocytes of the patients and normal controls were microinjected with 10 pL of Br-UTP (final concentration of 2 nM, Sigma) and cultured for 30 min. Oocytes were fixed, permeabilized, and blocked as described above and then incubated with BrdU monoclonal antibody (66241-1-Ig, Proteintech, 1:500) overnight at 4 C. The next day, oocytes were washed and incubated with Alexa Fluor 488-labeled secondary antibody (A21206, Invitrogen, 1:1000) for 1 h at room temperature. .. Images were captured by a laser scanning confocal microscope (FV3000, Olympus).

    Concentration Assay:

    Article Title: Identification of nonfunctional PABPC1L causing oocyte maturation abnormalities and early embryonic arrest in female primary infertility.
    Article Snippet: Oocytes were then stained with 2.5 μM SYTOX Orange (S34861, Invitrogen) for 10 min at room temperature and observed under a laser scanning confocal microscope (Olympus, Tokyo, Japan) with an excitation wavelength of 570 nm. .. The chromatin was classified by its distribution into non-surrounded nucleolus (NSN), surrounded nucleolus (SN), and partially surrounded nucleolus (PSN).37 For transcriptional activity assessment, GV oocytes of the patients and normal controls were microinjected with 10 pL of Br-UTP (final concentration of 2 nM, Sigma) and cultured for 30 min. Oocytes were fixed, permeabilized, and blocked as described above and then incubated with BrdU monoclonal antibody (66241-1-Ig, Proteintech, 1:500) overnight at 4 C. The next day, oocytes were washed and incubated with Alexa Fluor 488-labeled secondary antibody (A21206, Invitrogen, 1:1000) for 1 h at room temperature. .. Images were captured by a laser scanning confocal microscope (FV3000, Olympus).

    Cell Culture:

    Article Title: Identification of nonfunctional PABPC1L causing oocyte maturation abnormalities and early embryonic arrest in female primary infertility.
    Article Snippet: Oocytes were then stained with 2.5 μM SYTOX Orange (S34861, Invitrogen) for 10 min at room temperature and observed under a laser scanning confocal microscope (Olympus, Tokyo, Japan) with an excitation wavelength of 570 nm. .. The chromatin was classified by its distribution into non-surrounded nucleolus (NSN), surrounded nucleolus (SN), and partially surrounded nucleolus (PSN).37 For transcriptional activity assessment, GV oocytes of the patients and normal controls were microinjected with 10 pL of Br-UTP (final concentration of 2 nM, Sigma) and cultured for 30 min. Oocytes were fixed, permeabilized, and blocked as described above and then incubated with BrdU monoclonal antibody (66241-1-Ig, Proteintech, 1:500) overnight at 4 C. The next day, oocytes were washed and incubated with Alexa Fluor 488-labeled secondary antibody (A21206, Invitrogen, 1:1000) for 1 h at room temperature. .. Images were captured by a laser scanning confocal microscope (FV3000, Olympus).

    Article Title: Electroacupuncture combined with NSCs-Exo alters the response of hippocampal neurons in a chronic unpredictable mild stress paradigm in ovx rats.
    Article Snippet: .. DMEM/F12 medium (Gibc, 12500-062), B-27 (Gibc, 17504044), bFGF (Solarbio, P01413), EGF (Abmole, M10016-100), Penicillin-Streptomycin solution (Pricella, PB180120), 0.25 % Trypsin (Pricella, PB180227), Premium Fetal Bovine Serum (Lonsera, S711–001S), HRPlabelled Goat Anti-Mouse IgG (Servicebio, GB23301-100), HRP-labelled Goat Anti-Rabbit IgG (Servicebio, GB23303-100), NSCs grade cell digest (MKbio, MX2001-100), Goat Anti-rabbit IgG/Cy3 (Bioss, BS-0295GCY3-100), BrdU Monoclonal antibody (Proteintech, 66241-1-Ig-100), Brdu powder (Dalian Meilun Biotechnology Co., Ltd., MB3126-2), Cell culture incubator (GOLD-SIM, E191IR/W200IR), Electrothermal constant-temperature blower drying oven (Shanghai Donglu Instrument Co., Ltd., DHG-9070ADHG-9070A), Ultra-clean bench (Bioss, BS0295G-CY3-100), Ultra-clean bench (Shanghai Donglu Instrument Co., Ultra-clean bench (Shanghai Zhicheng, ZHJH-C1209B). ..

    Incubation:

    Article Title: Identification of nonfunctional PABPC1L causing oocyte maturation abnormalities and early embryonic arrest in female primary infertility.
    Article Snippet: Oocytes were then stained with 2.5 μM SYTOX Orange (S34861, Invitrogen) for 10 min at room temperature and observed under a laser scanning confocal microscope (Olympus, Tokyo, Japan) with an excitation wavelength of 570 nm. .. The chromatin was classified by its distribution into non-surrounded nucleolus (NSN), surrounded nucleolus (SN), and partially surrounded nucleolus (PSN).37 For transcriptional activity assessment, GV oocytes of the patients and normal controls were microinjected with 10 pL of Br-UTP (final concentration of 2 nM, Sigma) and cultured for 30 min. Oocytes were fixed, permeabilized, and blocked as described above and then incubated with BrdU monoclonal antibody (66241-1-Ig, Proteintech, 1:500) overnight at 4 C. The next day, oocytes were washed and incubated with Alexa Fluor 488-labeled secondary antibody (A21206, Invitrogen, 1:1000) for 1 h at room temperature. .. Images were captured by a laser scanning confocal microscope (FV3000, Olympus).

    Article Title: SETD2 drives METTL14-mediated m 6 A to suppress Piezo1 Attenuation and activate TGM2 to promote pulmonary hypertension
    Article Snippet: BrdU (Cat. No. ST1056; Beyotime, Nanjing, China) (0.03 μg/ml) was added to the culture plate, which was subsequently incubated for 24 h. Then, 200 μl of fixative solution was added to each well, and the mixture was incubated at room temperature for 30 min to fix and denature the DNA. .. Subsequently, HCl (1.5 mmol/L) was added, and the mixture was incubated at room temperature for 30 min. A BrdU monoclonal antibody (1:1000, 66241-1-Ig, Proteintech, Wuhan, China) was then added, and the mixture was incubated for 1 h at room temperature. .. The Gold Anti-Fade Reagent with DAPI (Cat. No. C1005; Beyotime, Nanjing, China) was added, and the samples were incubated at room temperature for 30 min.

    other:

    Article Title: The Flip Side of the Coin: METTL3 Serves as a Novel Cellular Senescence Accelerator via Negative Regulation of ITGA9
    Article Snippet: M6A antibody (202003, Synaptic Systems, Germany), GAPDH Monoclonal antibody (60004-1-Ig, Proteintech, China), METTL3 Monoclonal antibody (ab195352, Abcam, UK), FTO Polyclonal antibody (27226-1-AP, Proteintech, China), METTL14 Polyclonal antibody (AP22363a, Abgent, USA), ALKBH5 Polyclonal antibody (16837-1-AP, Proteintech, China), WTAP Monoclonal antibody (60188-1-Ig, Proteintech, China), p16 INK4A antibody (F-12) (sc-1661, Santa Cruz, USA), ITGA9 Polyclonal antibody (AF3827, R&D, USA), BrdU Monoclonal antibody (66241-1-Ig, Proteintech, China), Goat Anti-Mouse antibody (Alexa Fluor® 488) (SA00013-1, Proteintech, China), Goat anti-rabbit IgG (H+L) antibody (A0208, Beyotime, China), Goat anti-mouse IgG (H+L) antibody (A0216, Beyotime, China), Donkey anti-goat IgG (H+L) antibody (A0181, Beyotime, China).



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    Proteintech brdu monoclonal antibody
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    AKG-TET deficiency leads to replicative senescence aHDFs (3 × 10 5 cells/mL) were seeded in each culture plate and were treated, in triplicate, without (UT) or treated (T) with C35 (5 μM), peptides (20 μM), TET1 siRNA ( TET1 i ; 300 nM). Cells treated with Bleomycin (Bleo; 5 μg/mL), or H 2 O 2 (100 μM) were used as positive control. Cells were incubated with 30 μM <t>BrdU</t> for 18 h prior to removal of both the cells and culture media following 7 days of treatment. (A) Heatmap of TET gene expression. (B) TET activity and global DNA levels of 5 mC, 5hmC, and 5 fC. (C) Expression patterns of energy/stress and nutrient-sensing pathways in aging PBMCs mirror those observed in young, actively replicating aHDFs (week 3) undergoing senescence, as well as those treated with TET1 i , C35, and RLS. (D) Expression level of hTERT , NAMPT , and PCNA . (E) Expression level of COL1A1 and ELN. (F) Cellular UPS activity, ATP, NAD + /NADH ratio, and LC3B levels. (G) Cellular levels of LC3B without (−) and after pre-treatment with (+) Bafilomycin A1 (1 μM) for 24 h. (H) Cellular ROS. (I) Extent of oxidative DNA damage assessed by the cellular level of 8OHdG. Positive control was comprised of cells treated with H 2 O 2 and Bleomycin (Bleo). Negative control was comprised of cells treated with CLV. (J) γH2AX immunolocalized to nuclei. For positive control, cells were treated with Bleomycin (Bleo). Intranuclear γH2AX (green) appears as focal spots (red arrows) or as a diffuse pan-nuclear pattern (yellow arrows) in nuclei marked by DAPI (blue) staining. Nuclei are further highlighted by double hashed lines. The boxes in the left pane (scale bars 10 μM) are magnified in the right insets (scale bars 2.5 μm). (K) NFKB1 gene expression. (L) Level of intra-nuclear phosphorylated p65 (p65P). (M) Cellular levels of ROS, IL6, and IL8 were secreted into culture media. (N) Expression levels of senescence markers ( CDKN2A , CDKN1A , CDKN1B , LTA4H , TIMP1 , and MMP1 ). (O) Expression level of LDH toxicity, SAβ-Gal activity, and extracellular level of lactic acid (LA). (P) LDHA1 gene expression. (Q) Rate of proliferation assessed by the quantitation of BrdU incorporated into the nuclei of cells in S-phase. Bar and line graphs show the means ± SD. Boxplots show the first and third quartiles and median values. Points are shown as empty and mean points as filled circles. The distribution of data points is shown by Beeswarm in Violin plots. Statistical significance was assessed using Student’s t test for two-group comparisons. p -values are presented as follows: ns (not significant), p ≤ 5 × 10 −1 , ∗p ≤ 5 × 10 −2 , ∗∗p ≤ 5 × 10 −3 , ∗∗∗p ≤ 5 × 10 −4 .
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    AKG-TET deficiency leads to replicative senescence aHDFs (3 × 10 5 cells/mL) were seeded in each culture plate and were treated, in triplicate, without (UT) or treated (T) with C35 (5 μM), peptides (20 μM), TET1 siRNA ( TET1 i ; 300 nM). Cells treated with Bleomycin (Bleo; 5 μg/mL), or H 2 O 2 (100 μM) were used as positive control. Cells were incubated with 30 μM <t>BrdU</t> for 18 h prior to removal of both the cells and culture media following 7 days of treatment. (A) Heatmap of TET gene expression. (B) TET activity and global DNA levels of 5 mC, 5hmC, and 5 fC. (C) Expression patterns of energy/stress and nutrient-sensing pathways in aging PBMCs mirror those observed in young, actively replicating aHDFs (week 3) undergoing senescence, as well as those treated with TET1 i , C35, and RLS. (D) Expression level of hTERT , NAMPT , and PCNA . (E) Expression level of COL1A1 and ELN. (F) Cellular UPS activity, ATP, NAD + /NADH ratio, and LC3B levels. (G) Cellular levels of LC3B without (−) and after pre-treatment with (+) Bafilomycin A1 (1 μM) for 24 h. (H) Cellular ROS. (I) Extent of oxidative DNA damage assessed by the cellular level of 8OHdG. Positive control was comprised of cells treated with H 2 O 2 and Bleomycin (Bleo). Negative control was comprised of cells treated with CLV. (J) γH2AX immunolocalized to nuclei. For positive control, cells were treated with Bleomycin (Bleo). Intranuclear γH2AX (green) appears as focal spots (red arrows) or as a diffuse pan-nuclear pattern (yellow arrows) in nuclei marked by DAPI (blue) staining. Nuclei are further highlighted by double hashed lines. The boxes in the left pane (scale bars 10 μM) are magnified in the right insets (scale bars 2.5 μm). (K) NFKB1 gene expression. (L) Level of intra-nuclear phosphorylated p65 (p65P). (M) Cellular levels of ROS, IL6, and IL8 were secreted into culture media. (N) Expression levels of senescence markers ( CDKN2A , CDKN1A , CDKN1B , LTA4H , TIMP1 , and MMP1 ). (O) Expression level of LDH toxicity, SAβ-Gal activity, and extracellular level of lactic acid (LA). (P) LDHA1 gene expression. (Q) Rate of proliferation assessed by the quantitation of BrdU incorporated into the nuclei of cells in S-phase. Bar and line graphs show the means ± SD. Boxplots show the first and third quartiles and median values. Points are shown as empty and mean points as filled circles. The distribution of data points is shown by Beeswarm in Violin plots. Statistical significance was assessed using Student’s t test for two-group comparisons. p -values are presented as follows: ns (not significant), p ≤ 5 × 10 −1 , ∗p ≤ 5 × 10 −2 , ∗∗p ≤ 5 × 10 −3 , ∗∗∗p ≤ 5 × 10 −4 .
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    AKG-TET deficiency leads to replicative senescence aHDFs (3 × 10 5 cells/mL) were seeded in each culture plate and were treated, in triplicate, without (UT) or treated (T) with C35 (5 μM), peptides (20 μM), TET1 siRNA ( TET1 i ; 300 nM). Cells treated with Bleomycin (Bleo; 5 μg/mL), or H 2 O 2 (100 μM) were used as positive control. Cells were incubated with 30 μM <t>BrdU</t> for 18 h prior to removal of both the cells and culture media following 7 days of treatment. (A) Heatmap of TET gene expression. (B) TET activity and global DNA levels of 5 mC, 5hmC, and 5 fC. (C) Expression patterns of energy/stress and nutrient-sensing pathways in aging PBMCs mirror those observed in young, actively replicating aHDFs (week 3) undergoing senescence, as well as those treated with TET1 i , C35, and RLS. (D) Expression level of hTERT , NAMPT , and PCNA . (E) Expression level of COL1A1 and ELN. (F) Cellular UPS activity, ATP, NAD + /NADH ratio, and LC3B levels. (G) Cellular levels of LC3B without (−) and after pre-treatment with (+) Bafilomycin A1 (1 μM) for 24 h. (H) Cellular ROS. (I) Extent of oxidative DNA damage assessed by the cellular level of 8OHdG. Positive control was comprised of cells treated with H 2 O 2 and Bleomycin (Bleo). Negative control was comprised of cells treated with CLV. (J) γH2AX immunolocalized to nuclei. For positive control, cells were treated with Bleomycin (Bleo). Intranuclear γH2AX (green) appears as focal spots (red arrows) or as a diffuse pan-nuclear pattern (yellow arrows) in nuclei marked by DAPI (blue) staining. Nuclei are further highlighted by double hashed lines. The boxes in the left pane (scale bars 10 μM) are magnified in the right insets (scale bars 2.5 μm). (K) NFKB1 gene expression. (L) Level of intra-nuclear phosphorylated p65 (p65P). (M) Cellular levels of ROS, IL6, and IL8 were secreted into culture media. (N) Expression levels of senescence markers ( CDKN2A , CDKN1A , CDKN1B , LTA4H , TIMP1 , and MMP1 ). (O) Expression level of LDH toxicity, SAβ-Gal activity, and extracellular level of lactic acid (LA). (P) LDHA1 gene expression. (Q) Rate of proliferation assessed by the quantitation of BrdU incorporated into the nuclei of cells in S-phase. Bar and line graphs show the means ± SD. Boxplots show the first and third quartiles and median values. Points are shown as empty and mean points as filled circles. The distribution of data points is shown by Beeswarm in Violin plots. Statistical significance was assessed using Student’s t test for two-group comparisons. p -values are presented as follows: ns (not significant), p ≤ 5 × 10 −1 , ∗p ≤ 5 × 10 −2 , ∗∗p ≤ 5 × 10 −3 , ∗∗∗p ≤ 5 × 10 −4 .
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    Effects of stable VMP1 knockdown on cell proliferation, clone formation and pellet-forming ability of stem cells. A . Expression of VMP1 was determined by immunofluorescence staining. B . Western blot analysis of VMP1 protein levels after knockdown of VMP1 in MCF-7. C . <t>BrdU</t> incorporation assay evaluating the proliferative capacity of shVMP1 and shNC MCF-7 cells. BrdU-positive cells were stained and counted. D. Proliferation ability of VMP1 knockdown MCF-7 cells was evaluated using the CCK8 assay. E . The clone formation experiment detected the clone formation ability of MCF-7 breast cancer cells after the knocking down of VMP1 gene. F . The migration ability of MCF-7 cells after VMP1 knockdown detected by Transwell assay. G . Pellet-forming capacity of stem cells in MCF-7 breast cancer cells was measured after VMP1 knockdown. All experiments were performed in four groups: shNC, shVMP1#, shVMP1#2 and shVMP1#2 + VMP1 overexpression (rescue group). * p < 0.05, ** p < 0.01, *** p < 0.001
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    Effects of stable VMP1 knockdown on cell proliferation, clone formation and pellet-forming ability of stem cells. A . Expression of VMP1 was determined by immunofluorescence staining. B . Western blot analysis of VMP1 protein levels after knockdown of VMP1 in MCF-7. C . <t>BrdU</t> incorporation assay evaluating the proliferative capacity of shVMP1 and shNC MCF-7 cells. BrdU-positive cells were stained and counted. D. Proliferation ability of VMP1 knockdown MCF-7 cells was evaluated using the CCK8 assay. E . The clone formation experiment detected the clone formation ability of MCF-7 breast cancer cells after the knocking down of VMP1 gene. F . The migration ability of MCF-7 cells after VMP1 knockdown detected by Transwell assay. G . Pellet-forming capacity of stem cells in MCF-7 breast cancer cells was measured after VMP1 knockdown. All experiments were performed in four groups: shNC, shVMP1#, shVMP1#2 and shVMP1#2 + VMP1 overexpression (rescue group). * p < 0.05, ** p < 0.01, *** p < 0.001
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    Image Search Results


    METTL3 accelerated replicative senescence in MEFs . ( A ) The protein levels in MEFs transfected with siNC and siMETTL3-1/2/3. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (siMETTL3-1 vs 1: p =0.0113, t =9.328; siMETTL3-2VS 1: p =0.0022, t =21.05; siMETTL3-3 vs 1: p =0.0117, t = 9.155). ( B ) Poly(A)+ RNA was extracted from MEF cells transfected with siNC and siMETTL3 and subjected to RNA dot-blot analysis with an antibody recognizing m6A. Methylene blue staining served as the loading control. ( C ) Western blot assay of p16 expression in MEFs transfected with siNC and siMETTL3. The quantitative results were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; One sample t test (siMETTL3 vs 1, p =0.0006, t =15.36). ( D ) Representative photographs of SA-β-gal staining of MEF cells transfected with siNC and siMETTL3 (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test (siMETTL3 vs siNC, p =0.0025, t =9.407). ( E ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in siNC and siMETTL3 transfected MEF cells (scale bar: 400μm). The quantitative results of the ratio (BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test (siMETTL3 vs siNC, p =0.009, t =6.065). ( F ) The mRNA levels in MEFs infected with Lenti-NC and METTL3 lentivirus. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (METTL3VS 1, p =0.0058, t =13.03). ( G ) Poly(A)+ RNA was extracted from MEF cells infected with Lenti-NC and METTL3 lentivirus and subjected to RNA dot-blot analysis with an antibody recognizing m6A. Methylene blue staining served as the loading control. ( H ) Western blot assay of METTL3 and p16 expression in MEFs infected with METTL3 lentivirus. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (METTL3 vs 1, p =0.0342, t =5.271). ( I ) Representative photographs of SA-β-gal staining of MEF cells infected with Lenti-NC and METTL3 lentivirus (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (METTL3 vs Lenti-NC, p =0.0088, t =10.59). ( J ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in Lenti-NC and METTL3 lentivirus infected MEF cells (scale bar: 400μm). The quantitative results of the ratio (BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (METTL3 vs Lenti-NC, p =0.0065, t =12.35).

    Journal: Aging and Disease

    Article Title: The Flip Side of the Coin: METTL3 Serves as a Novel Cellular Senescence Accelerator via Negative Regulation of ITGA9

    doi: 10.14336/AD.2024.1715

    Figure Lengend Snippet: METTL3 accelerated replicative senescence in MEFs . ( A ) The protein levels in MEFs transfected with siNC and siMETTL3-1/2/3. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (siMETTL3-1 vs 1: p =0.0113, t =9.328; siMETTL3-2VS 1: p =0.0022, t =21.05; siMETTL3-3 vs 1: p =0.0117, t = 9.155). ( B ) Poly(A)+ RNA was extracted from MEF cells transfected with siNC and siMETTL3 and subjected to RNA dot-blot analysis with an antibody recognizing m6A. Methylene blue staining served as the loading control. ( C ) Western blot assay of p16 expression in MEFs transfected with siNC and siMETTL3. The quantitative results were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; One sample t test (siMETTL3 vs 1, p =0.0006, t =15.36). ( D ) Representative photographs of SA-β-gal staining of MEF cells transfected with siNC and siMETTL3 (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test (siMETTL3 vs siNC, p =0.0025, t =9.407). ( E ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in siNC and siMETTL3 transfected MEF cells (scale bar: 400μm). The quantitative results of the ratio (BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test (siMETTL3 vs siNC, p =0.009, t =6.065). ( F ) The mRNA levels in MEFs infected with Lenti-NC and METTL3 lentivirus. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (METTL3VS 1, p =0.0058, t =13.03). ( G ) Poly(A)+ RNA was extracted from MEF cells infected with Lenti-NC and METTL3 lentivirus and subjected to RNA dot-blot analysis with an antibody recognizing m6A. Methylene blue staining served as the loading control. ( H ) Western blot assay of METTL3 and p16 expression in MEFs infected with METTL3 lentivirus. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (METTL3 vs 1, p =0.0342, t =5.271). ( I ) Representative photographs of SA-β-gal staining of MEF cells infected with Lenti-NC and METTL3 lentivirus (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (METTL3 vs Lenti-NC, p =0.0088, t =10.59). ( J ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in Lenti-NC and METTL3 lentivirus infected MEF cells (scale bar: 400μm). The quantitative results of the ratio (BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (METTL3 vs Lenti-NC, p =0.0065, t =12.35).

    Article Snippet: M6A antibody (202003, Synaptic Systems, Germany), GAPDH Monoclonal antibody (60004-1-Ig, Proteintech, China), METTL3 Monoclonal antibody (ab195352, Abcam, UK), FTO Polyclonal antibody (27226-1-AP, Proteintech, China), METTL14 Polyclonal antibody (AP22363a, Abgent, USA), ALKBH5 Polyclonal antibody (16837-1-AP, Proteintech, China), WTAP Monoclonal antibody (60188-1-Ig, Proteintech, China), p16 INK4A antibody (F-12) (sc-1661, Santa Cruz, USA), ITGA9 Polyclonal antibody (AF3827, R&D, USA), BrdU Monoclonal antibody (66241-1-Ig, Proteintech, China), Goat Anti-Mouse antibody (Alexa Fluor® 488) (SA00013-1, Proteintech, China), Goat anti-rabbit IgG (H+L) antibody (A0208, Beyotime, China), Goat anti-mouse IgG (H+L) antibody (A0216, Beyotime, China), Donkey anti-goat IgG (H+L) antibody (A0181, Beyotime, China).

    Techniques: Transfection, Dot Blot, Staining, Control, Western Blot, Expressing, Fluorescence, Infection

    ITGA9 staved off senescence in MEFs . ( A ) The mRNA and protein levels of ITGA9 in MEF cells transfected with siNC and siITGA9-1/2/3.Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (siITGA9-1 vs 11: p =0.0002, t =68.12; siITGA9-2 vs 1: p =0.0003, t =63.15 ; siITGA9-3 vs 11: p =0.0111, t =9.410; ) (B) The p16 expression levels in MEF cells transfected with siNC and siITGA9. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (siITGA9 vs 1, p =0.0012, t =28.41). ( C ) Representative photographs of SA-β-gal staining of MEF cells transfected with siNC and siITGA9 (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (siITGA9 vs siNC, p =0.0026, t =19.65). ( D ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in siNC and siITGA9 transfected MEF cells (scale bar: 400μm). The quantitative results of the ratio ( BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (siITGA9 vs siNC, p =0.0144, t =4.138). ( E ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in Lenti-NC and ITGA9 infected MEF cells (scale bar: 400μm). The quantitative results of the ratio ( BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test (ITGA9 vs Lenti-NC, p =0.01, t =5.843). ( F ) The mRNA levels of ITGA9 in MEF cells infected with Lenti-NC or ITGA9 lentivirus. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (ITGA9 vs 1, p =0.0025, t =20.08). ( G ) The ITGA9 and p16 protein expression levels in MEFs infected with Lenti-NC and ITGA9 lentivirus. The results of grayscale scanning were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (ITGA9 vs 1, p =0.0256, t =6.124). ( H ) Representative photographs of SA-β-gal staining of MEF cells infected with Lenti-NC and ITGA9 lentivirus (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (ITGA9 vs Lenti-NC, p =0.0009, t =33.30).

    Journal: Aging and Disease

    Article Title: The Flip Side of the Coin: METTL3 Serves as a Novel Cellular Senescence Accelerator via Negative Regulation of ITGA9

    doi: 10.14336/AD.2024.1715

    Figure Lengend Snippet: ITGA9 staved off senescence in MEFs . ( A ) The mRNA and protein levels of ITGA9 in MEF cells transfected with siNC and siITGA9-1/2/3.Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (siITGA9-1 vs 11: p =0.0002, t =68.12; siITGA9-2 vs 1: p =0.0003, t =63.15 ; siITGA9-3 vs 11: p =0.0111, t =9.410; ) (B) The p16 expression levels in MEF cells transfected with siNC and siITGA9. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (siITGA9 vs 1, p =0.0012, t =28.41). ( C ) Representative photographs of SA-β-gal staining of MEF cells transfected with siNC and siITGA9 (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (siITGA9 vs siNC, p =0.0026, t =19.65). ( D ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in siNC and siITGA9 transfected MEF cells (scale bar: 400μm). The quantitative results of the ratio ( BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (siITGA9 vs siNC, p =0.0144, t =4.138). ( E ) Representative photographs of cells stained with DAPI (blue fluorescence) and BrdU (green fluorescence) in Lenti-NC and ITGA9 infected MEF cells (scale bar: 400μm). The quantitative results of the ratio ( BrdU stained cells / DAPI stained cells) were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test (ITGA9 vs Lenti-NC, p =0.01, t =5.843). ( F ) The mRNA levels of ITGA9 in MEF cells infected with Lenti-NC or ITGA9 lentivirus. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (ITGA9 vs 1, p =0.0025, t =20.08). ( G ) The ITGA9 and p16 protein expression levels in MEFs infected with Lenti-NC and ITGA9 lentivirus. The results of grayscale scanning were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; One sample t test (ITGA9 vs 1, p =0.0256, t =6.124). ( H ) Representative photographs of SA-β-gal staining of MEF cells infected with Lenti-NC and ITGA9 lentivirus (×100). The quantitative results of SA-β-gal staining were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test (ITGA9 vs Lenti-NC, p =0.0009, t =33.30).

    Article Snippet: M6A antibody (202003, Synaptic Systems, Germany), GAPDH Monoclonal antibody (60004-1-Ig, Proteintech, China), METTL3 Monoclonal antibody (ab195352, Abcam, UK), FTO Polyclonal antibody (27226-1-AP, Proteintech, China), METTL14 Polyclonal antibody (AP22363a, Abgent, USA), ALKBH5 Polyclonal antibody (16837-1-AP, Proteintech, China), WTAP Monoclonal antibody (60188-1-Ig, Proteintech, China), p16 INK4A antibody (F-12) (sc-1661, Santa Cruz, USA), ITGA9 Polyclonal antibody (AF3827, R&D, USA), BrdU Monoclonal antibody (66241-1-Ig, Proteintech, China), Goat Anti-Mouse antibody (Alexa Fluor® 488) (SA00013-1, Proteintech, China), Goat anti-rabbit IgG (H+L) antibody (A0208, Beyotime, China), Goat anti-mouse IgG (H+L) antibody (A0216, Beyotime, China), Donkey anti-goat IgG (H+L) antibody (A0181, Beyotime, China).

    Techniques: Transfection, Expressing, Staining, Fluorescence, Infection

    METTL3 accelerated cellular senescence by modulating ITGA9 . ( A ) The p16 level in MEF cells transfected with siNC, siMETTL3 or siMETTL3 and siITGA9. The quantitative results were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test ( p =0.0058, t =7.062). ( B ) The p16 level in MEF cells infected with Lenti-NC, METTL3 or METTL3 and ITGA9. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test ( p =0.017, t =7.563). (C, D) Representative photographs of SA-β-gal staining (C) and BrdU incorporation staining (D) of MEF cells transfected with siNC, siMETTL3, siITGA9, or siMETTL3 and siITGA9. The quantitative results were shown on the right. Mean (±SEM), passed normality test: Shapiro-Wilk test; Paired t test (C), n=3, p =0.0044, t =15.02; (D), n=4, p =0.0003, t =19.14). (E, F) Representative photographs of SA-β-gal staining (E) and BrdU incorporation staining (F) of MEF cells infected with Lenti-NC, METTL3, ITGA9 or METTL3 and ITGA9. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test ((E): p =0.0095, t =10.18; (F): p =0.0231, t =6.469).

    Journal: Aging and Disease

    Article Title: The Flip Side of the Coin: METTL3 Serves as a Novel Cellular Senescence Accelerator via Negative Regulation of ITGA9

    doi: 10.14336/AD.2024.1715

    Figure Lengend Snippet: METTL3 accelerated cellular senescence by modulating ITGA9 . ( A ) The p16 level in MEF cells transfected with siNC, siMETTL3 or siMETTL3 and siITGA9. The quantitative results were shown on the right. Mean (±SEM), n=4, passed normality test: Shapiro-Wilk test; Paired t test ( p =0.0058, t =7.062). ( B ) The p16 level in MEF cells infected with Lenti-NC, METTL3 or METTL3 and ITGA9. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test ( p =0.017, t =7.563). (C, D) Representative photographs of SA-β-gal staining (C) and BrdU incorporation staining (D) of MEF cells transfected with siNC, siMETTL3, siITGA9, or siMETTL3 and siITGA9. The quantitative results were shown on the right. Mean (±SEM), passed normality test: Shapiro-Wilk test; Paired t test (C), n=3, p =0.0044, t =15.02; (D), n=4, p =0.0003, t =19.14). (E, F) Representative photographs of SA-β-gal staining (E) and BrdU incorporation staining (F) of MEF cells infected with Lenti-NC, METTL3, ITGA9 or METTL3 and ITGA9. The quantitative results were shown on the right. Mean (±SEM), n=3, passed normality test: Shapiro-Wilk test; Paired t test ((E): p =0.0095, t =10.18; (F): p =0.0231, t =6.469).

    Article Snippet: M6A antibody (202003, Synaptic Systems, Germany), GAPDH Monoclonal antibody (60004-1-Ig, Proteintech, China), METTL3 Monoclonal antibody (ab195352, Abcam, UK), FTO Polyclonal antibody (27226-1-AP, Proteintech, China), METTL14 Polyclonal antibody (AP22363a, Abgent, USA), ALKBH5 Polyclonal antibody (16837-1-AP, Proteintech, China), WTAP Monoclonal antibody (60188-1-Ig, Proteintech, China), p16 INK4A antibody (F-12) (sc-1661, Santa Cruz, USA), ITGA9 Polyclonal antibody (AF3827, R&D, USA), BrdU Monoclonal antibody (66241-1-Ig, Proteintech, China), Goat Anti-Mouse antibody (Alexa Fluor® 488) (SA00013-1, Proteintech, China), Goat anti-rabbit IgG (H+L) antibody (A0208, Beyotime, China), Goat anti-mouse IgG (H+L) antibody (A0216, Beyotime, China), Donkey anti-goat IgG (H+L) antibody (A0181, Beyotime, China).

    Techniques: Transfection, Infection, Staining, BrdU Incorporation Assay

    Increasing sodium concentration upregulates Ccl20 expression in KCs through the JNK/p38–SGK1 pathway. ( a ) qPCR analysis of selected chemokines, cytokines, and Sgk1 in KCs (n = 5 for each group). (b) Immunoblot analysis of p38, phosphorylated p38, JNK, and phosphorylated JNK in KCs for different time (0 min, 30 min, 60 min), and tubulin was used as control. The relative densitometry of all bands (arbitrary unit) was normalized to the level of 0 min (n = 3 for each group). (c) qPCR analysis of Ccl20 and Sgk1 RNA expression in KCs treated with pharmacological inhibitors (n = 3 for each group). Data are shown as mean ± SEM. For a, P -values were determined by 2-tailed Student’s t -test. For c, P -values were determined by 1-way ANOVA. ∗∗ P < .01, ∗∗∗ P < .01, and ∗∗∗∗ P < .0001. KC, keratinocyte; min, minute.

    Journal: JID Innovations

    Article Title: High-salt diet aggravates skin inflammation of psoriasis-like mouse model with CCL20‒CCR6 axis further activation

    doi: 10.1016/j.xjidi.2026.100451

    Figure Lengend Snippet: Increasing sodium concentration upregulates Ccl20 expression in KCs through the JNK/p38–SGK1 pathway. ( a ) qPCR analysis of selected chemokines, cytokines, and Sgk1 in KCs (n = 5 for each group). (b) Immunoblot analysis of p38, phosphorylated p38, JNK, and phosphorylated JNK in KCs for different time (0 min, 30 min, 60 min), and tubulin was used as control. The relative densitometry of all bands (arbitrary unit) was normalized to the level of 0 min (n = 3 for each group). (c) qPCR analysis of Ccl20 and Sgk1 RNA expression in KCs treated with pharmacological inhibitors (n = 3 for each group). Data are shown as mean ± SEM. For a, P -values were determined by 2-tailed Student’s t -test. For c, P -values were determined by 1-way ANOVA. ∗∗ P < .01, ∗∗∗ P < .01, and ∗∗∗∗ P < .0001. KC, keratinocyte; min, minute.

    Article Snippet: JNK Rabbit mAb (Cell Signaling Technology, catalog number 5292), phosphorylated JNK Rabbit mAb (Cell Signaling Technology, catalog number 4668), p38 Rabbit mAb (Cell Signaling Technology, catalog number 8690), phosphorylated p38 Rabbit mAb (Cell Signaling Technology, catalog number 4511), mouse anti-Alpha Tubulin mAb (Proteintech, catalog number HRP-66031) were used as primary antibodies, and goat antirabbit antibody (Abcam, catalog number ab6721) was used as secondary antibody.

    Techniques: Concentration Assay, Expressing, Western Blot, Control, RNA Expression

    AKG-TET deficiency leads to replicative senescence aHDFs (3 × 10 5 cells/mL) were seeded in each culture plate and were treated, in triplicate, without (UT) or treated (T) with C35 (5 μM), peptides (20 μM), TET1 siRNA ( TET1 i ; 300 nM). Cells treated with Bleomycin (Bleo; 5 μg/mL), or H 2 O 2 (100 μM) were used as positive control. Cells were incubated with 30 μM BrdU for 18 h prior to removal of both the cells and culture media following 7 days of treatment. (A) Heatmap of TET gene expression. (B) TET activity and global DNA levels of 5 mC, 5hmC, and 5 fC. (C) Expression patterns of energy/stress and nutrient-sensing pathways in aging PBMCs mirror those observed in young, actively replicating aHDFs (week 3) undergoing senescence, as well as those treated with TET1 i , C35, and RLS. (D) Expression level of hTERT , NAMPT , and PCNA . (E) Expression level of COL1A1 and ELN. (F) Cellular UPS activity, ATP, NAD + /NADH ratio, and LC3B levels. (G) Cellular levels of LC3B without (−) and after pre-treatment with (+) Bafilomycin A1 (1 μM) for 24 h. (H) Cellular ROS. (I) Extent of oxidative DNA damage assessed by the cellular level of 8OHdG. Positive control was comprised of cells treated with H 2 O 2 and Bleomycin (Bleo). Negative control was comprised of cells treated with CLV. (J) γH2AX immunolocalized to nuclei. For positive control, cells were treated with Bleomycin (Bleo). Intranuclear γH2AX (green) appears as focal spots (red arrows) or as a diffuse pan-nuclear pattern (yellow arrows) in nuclei marked by DAPI (blue) staining. Nuclei are further highlighted by double hashed lines. The boxes in the left pane (scale bars 10 μM) are magnified in the right insets (scale bars 2.5 μm). (K) NFKB1 gene expression. (L) Level of intra-nuclear phosphorylated p65 (p65P). (M) Cellular levels of ROS, IL6, and IL8 were secreted into culture media. (N) Expression levels of senescence markers ( CDKN2A , CDKN1A , CDKN1B , LTA4H , TIMP1 , and MMP1 ). (O) Expression level of LDH toxicity, SAβ-Gal activity, and extracellular level of lactic acid (LA). (P) LDHA1 gene expression. (Q) Rate of proliferation assessed by the quantitation of BrdU incorporated into the nuclei of cells in S-phase. Bar and line graphs show the means ± SD. Boxplots show the first and third quartiles and median values. Points are shown as empty and mean points as filled circles. The distribution of data points is shown by Beeswarm in Violin plots. Statistical significance was assessed using Student’s t test for two-group comparisons. p -values are presented as follows: ns (not significant), p ≤ 5 × 10 −1 , ∗p ≤ 5 × 10 −2 , ∗∗p ≤ 5 × 10 −3 , ∗∗∗p ≤ 5 × 10 −4 .

    Journal: iScience

    Article Title: AKG-TET axis is central to senescence plasticity

    doi: 10.1016/j.isci.2025.114298

    Figure Lengend Snippet: AKG-TET deficiency leads to replicative senescence aHDFs (3 × 10 5 cells/mL) were seeded in each culture plate and were treated, in triplicate, without (UT) or treated (T) with C35 (5 μM), peptides (20 μM), TET1 siRNA ( TET1 i ; 300 nM). Cells treated with Bleomycin (Bleo; 5 μg/mL), or H 2 O 2 (100 μM) were used as positive control. Cells were incubated with 30 μM BrdU for 18 h prior to removal of both the cells and culture media following 7 days of treatment. (A) Heatmap of TET gene expression. (B) TET activity and global DNA levels of 5 mC, 5hmC, and 5 fC. (C) Expression patterns of energy/stress and nutrient-sensing pathways in aging PBMCs mirror those observed in young, actively replicating aHDFs (week 3) undergoing senescence, as well as those treated with TET1 i , C35, and RLS. (D) Expression level of hTERT , NAMPT , and PCNA . (E) Expression level of COL1A1 and ELN. (F) Cellular UPS activity, ATP, NAD + /NADH ratio, and LC3B levels. (G) Cellular levels of LC3B without (−) and after pre-treatment with (+) Bafilomycin A1 (1 μM) for 24 h. (H) Cellular ROS. (I) Extent of oxidative DNA damage assessed by the cellular level of 8OHdG. Positive control was comprised of cells treated with H 2 O 2 and Bleomycin (Bleo). Negative control was comprised of cells treated with CLV. (J) γH2AX immunolocalized to nuclei. For positive control, cells were treated with Bleomycin (Bleo). Intranuclear γH2AX (green) appears as focal spots (red arrows) or as a diffuse pan-nuclear pattern (yellow arrows) in nuclei marked by DAPI (blue) staining. Nuclei are further highlighted by double hashed lines. The boxes in the left pane (scale bars 10 μM) are magnified in the right insets (scale bars 2.5 μm). (K) NFKB1 gene expression. (L) Level of intra-nuclear phosphorylated p65 (p65P). (M) Cellular levels of ROS, IL6, and IL8 were secreted into culture media. (N) Expression levels of senescence markers ( CDKN2A , CDKN1A , CDKN1B , LTA4H , TIMP1 , and MMP1 ). (O) Expression level of LDH toxicity, SAβ-Gal activity, and extracellular level of lactic acid (LA). (P) LDHA1 gene expression. (Q) Rate of proliferation assessed by the quantitation of BrdU incorporated into the nuclei of cells in S-phase. Bar and line graphs show the means ± SD. Boxplots show the first and third quartiles and median values. Points are shown as empty and mean points as filled circles. The distribution of data points is shown by Beeswarm in Violin plots. Statistical significance was assessed using Student’s t test for two-group comparisons. p -values are presented as follows: ns (not significant), p ≤ 5 × 10 −1 , ∗p ≤ 5 × 10 −2 , ∗∗p ≤ 5 × 10 −3 , ∗∗∗p ≤ 5 × 10 −4 .

    Article Snippet: Mouse monoclonal anti-BrdU antibody , Santa Cruz Biotechnology , RRID: AB_626766.

    Techniques: Positive Control, Incubation, Gene Expression, Activity Assay, Expressing, Negative Control, Staining, Quantitation Assay

    AKG-TET dependent resilience to damage and protection against damage-induced senescence Proliferating aHDFs (0.3 × 10 6 /mL) and PBMCs (70 years; PBMC 70Yr, 1 × 10 6 /mL) were seeded in culture plates and pre-treated in triplicate without (untreated: UT) or with H 2 O 2 (100 μM) for 24 h. After 24 h, cells were washed and treated without or with CLV (20 μM), or CRISPR TET1 ( TET1 CR ;1 μg/mL). Cells were incubated with 30 μM BrdU for 18 h prior to removal of both the cells and culture media following 7 days of treatment. (A) Expression levels of TETs in PBMCs. (B) AKG bioavailability in PBMCs. (C) Expression levels of energy/stress and nutritional sensors in PBMCs. (D) Heatmap of senescence marker gene expression in PBMCs. (E) Level of extracellular lactic acid (LA) and SAβ-Gal activity in PBMCs. (F) Quantification of BrdU and ROS (qROS) in PBMCs. Bar and line graphs show the means ± SD. Statistical significance was assessed using Student’s t test for two-group comparisons. p -values are presented as follows: ns (not significant), p ≤ 5 × 10 −1 , ∗p ≤ 5 × 10 −2 , ∗∗p ≤ 5 × 10 −3 , ∗∗∗p ≤ 5 × 10 −4 . Points are shown as empty and mean points as filled circles.

    Journal: iScience

    Article Title: AKG-TET axis is central to senescence plasticity

    doi: 10.1016/j.isci.2025.114298

    Figure Lengend Snippet: AKG-TET dependent resilience to damage and protection against damage-induced senescence Proliferating aHDFs (0.3 × 10 6 /mL) and PBMCs (70 years; PBMC 70Yr, 1 × 10 6 /mL) were seeded in culture plates and pre-treated in triplicate without (untreated: UT) or with H 2 O 2 (100 μM) for 24 h. After 24 h, cells were washed and treated without or with CLV (20 μM), or CRISPR TET1 ( TET1 CR ;1 μg/mL). Cells were incubated with 30 μM BrdU for 18 h prior to removal of both the cells and culture media following 7 days of treatment. (A) Expression levels of TETs in PBMCs. (B) AKG bioavailability in PBMCs. (C) Expression levels of energy/stress and nutritional sensors in PBMCs. (D) Heatmap of senescence marker gene expression in PBMCs. (E) Level of extracellular lactic acid (LA) and SAβ-Gal activity in PBMCs. (F) Quantification of BrdU and ROS (qROS) in PBMCs. Bar and line graphs show the means ± SD. Statistical significance was assessed using Student’s t test for two-group comparisons. p -values are presented as follows: ns (not significant), p ≤ 5 × 10 −1 , ∗p ≤ 5 × 10 −2 , ∗∗p ≤ 5 × 10 −3 , ∗∗∗p ≤ 5 × 10 −4 . Points are shown as empty and mean points as filled circles.

    Article Snippet: Mouse monoclonal anti-BrdU antibody , Santa Cruz Biotechnology , RRID: AB_626766.

    Techniques: CRISPR, Incubation, Expressing, Marker, Gene Expression, Activity Assay

    AKG-TET deficient senescence state is reversible Young replicatively proliferating aHDFs (week 3, 0.3 × 10 6 /mL)) were seeded in culture plates and pre-treated in triplicates without (UT) and with C35 (5 μM), RLS (20 μM), or TET1 siRNA ( TET1 i ; 300 nM). Aliquot of cells were incubated with 30 μM BrdU for 18 h prior to removal of both the cells and culture media following 7 days of treatment. The remaining cells were re-seeded in equal numbers and cultured without treatment for an additional 7 days (withdrawal). Cultures were incubated with 30 μM BrdU for 18 h prior to removal of both the cells and culture media. (A) Quantification of TET activity, and 5 mC and 5fc levels. (B) Expression level of energy/stress and nutritional sensor genes. (C) Expression level of NFKB1 , RELA , IKBA , COL1A1, and ELN . (D) γH2AX immunolocalized (cyan) in nuclei. Nuclei stained for DAPI (deep blue) are marked by double hashed lines. (E) Extracellular level of lactic acid (LA), SAβ-Gal activity, LDH toxicity, and UPS. (F) Intracellular level of ROS and 8OHdG. (G) Heatmap of senescence markers and RRM2 gene expression. (H) Rate of proliferation assessed by BrdU incorporation into the nuclei of cells in S-phase. Bar and line graphs show the means ± SD. Boxplots show the first and third quartiles and median values. All points are shown as empty, and mean points as filled circles. The distribution of all data points is shown by Beeswarm in Violin plots. Statistical significance was assessed using Student’s t test for two-group comparisons. p -values are presented as follows: ns (not significant), p ≤ 5 × 10 −1 , ∗p ≤ 5 × 10 −2 , ∗∗p ≤ 5 × 10 −3 , ∗∗∗p ≤ 5 × 10 −4 .

    Journal: iScience

    Article Title: AKG-TET axis is central to senescence plasticity

    doi: 10.1016/j.isci.2025.114298

    Figure Lengend Snippet: AKG-TET deficient senescence state is reversible Young replicatively proliferating aHDFs (week 3, 0.3 × 10 6 /mL)) were seeded in culture plates and pre-treated in triplicates without (UT) and with C35 (5 μM), RLS (20 μM), or TET1 siRNA ( TET1 i ; 300 nM). Aliquot of cells were incubated with 30 μM BrdU for 18 h prior to removal of both the cells and culture media following 7 days of treatment. The remaining cells were re-seeded in equal numbers and cultured without treatment for an additional 7 days (withdrawal). Cultures were incubated with 30 μM BrdU for 18 h prior to removal of both the cells and culture media. (A) Quantification of TET activity, and 5 mC and 5fc levels. (B) Expression level of energy/stress and nutritional sensor genes. (C) Expression level of NFKB1 , RELA , IKBA , COL1A1, and ELN . (D) γH2AX immunolocalized (cyan) in nuclei. Nuclei stained for DAPI (deep blue) are marked by double hashed lines. (E) Extracellular level of lactic acid (LA), SAβ-Gal activity, LDH toxicity, and UPS. (F) Intracellular level of ROS and 8OHdG. (G) Heatmap of senescence markers and RRM2 gene expression. (H) Rate of proliferation assessed by BrdU incorporation into the nuclei of cells in S-phase. Bar and line graphs show the means ± SD. Boxplots show the first and third quartiles and median values. All points are shown as empty, and mean points as filled circles. The distribution of all data points is shown by Beeswarm in Violin plots. Statistical significance was assessed using Student’s t test for two-group comparisons. p -values are presented as follows: ns (not significant), p ≤ 5 × 10 −1 , ∗p ≤ 5 × 10 −2 , ∗∗p ≤ 5 × 10 −3 , ∗∗∗p ≤ 5 × 10 −4 .

    Article Snippet: Mouse monoclonal anti-BrdU antibody , Santa Cruz Biotechnology , RRID: AB_626766.

    Techniques: Incubation, Cell Culture, Activity Assay, Expressing, Staining, Gene Expression, BrdU Incorporation Assay

    Activation of the AKG-TET axis reverses replicative and age induced senescence Replicatively induced senescence. Replicatively senescent aHDFs (0.3 × 10 6 cells/mL) were seeded in triplicate in each plate and were treated without (UT) and with RLS (20 μM), CLV (20 μM), or CRISPR TET1 plasmids (TET1 CR , 1 μg/mL). Cells were incubated with 30 μM BrdU for 18 h prior to removal of both the cells and culture media following 7 days of treatment. (A) Expression level of TET s. (B) AKG bioavailability and TET activity (TET act ). (C) Expression level of energy/stress and nutritional sensor gene expression. (D) Intracellular level of ROS. (E) Heatmap of senescence marker and RRM2 gene expression. (F) Level of lactic acid (LA) in culture media. (G) Cellular SAβ-Gal activity. (H) Quantitation of nuclear BrdU. (I) Total cell numbers. Age induced senescence. PBMCs (PBMC 70Yr ) were seeded (1 × 10 6 cells/mL) in triplicate in each well of a 24-well plate and were treated without (UT) and with RLS (20 μM), CLV (20 μM), or CRISPR TET1 plasmids ( TET1 CR : 1 μg/mL). Cells and culture media were removed on day 7 of treatment for analysis. (J) Quantitation of bioavailable AKG and TET activity in cells treated with RLS versus CLV. (K) qPCR quantitation of the expression level of TET s. (L) qPCR quantitation of the expression level of energy/stress and nutritional sensor gene expression. (M) Quantitation of BrdU incorporated into nuclei of cells in S-phase, lactic (LA) acid in culture media, cellular SAβ-Gal activity, and ROS. (N) Heatmap of senescence markers and RRM2 in PBMCs. Bar and line graphs show the means ± SD. Boxplots show the first and third quartiles and median values. All points are shown as empty, and mean points as filled circles. The distribution of all data points is shown by Beeswarm in Violin plots. Statistical significance was assessed using Student’s t test for two-group comparisons. p -values are presented as follows: ns (not significant), p ≤ 5 × 10 −1 , ∗p ≤ 5 × 10 −2 , ∗∗p ≤ 5 × 10 −3 , ∗∗∗p ≤ 5 × 10 −4 , ∗∗∗∗p ≤ 5 × 10 −5 .

    Journal: iScience

    Article Title: AKG-TET axis is central to senescence plasticity

    doi: 10.1016/j.isci.2025.114298

    Figure Lengend Snippet: Activation of the AKG-TET axis reverses replicative and age induced senescence Replicatively induced senescence. Replicatively senescent aHDFs (0.3 × 10 6 cells/mL) were seeded in triplicate in each plate and were treated without (UT) and with RLS (20 μM), CLV (20 μM), or CRISPR TET1 plasmids (TET1 CR , 1 μg/mL). Cells were incubated with 30 μM BrdU for 18 h prior to removal of both the cells and culture media following 7 days of treatment. (A) Expression level of TET s. (B) AKG bioavailability and TET activity (TET act ). (C) Expression level of energy/stress and nutritional sensor gene expression. (D) Intracellular level of ROS. (E) Heatmap of senescence marker and RRM2 gene expression. (F) Level of lactic acid (LA) in culture media. (G) Cellular SAβ-Gal activity. (H) Quantitation of nuclear BrdU. (I) Total cell numbers. Age induced senescence. PBMCs (PBMC 70Yr ) were seeded (1 × 10 6 cells/mL) in triplicate in each well of a 24-well plate and were treated without (UT) and with RLS (20 μM), CLV (20 μM), or CRISPR TET1 plasmids ( TET1 CR : 1 μg/mL). Cells and culture media were removed on day 7 of treatment for analysis. (J) Quantitation of bioavailable AKG and TET activity in cells treated with RLS versus CLV. (K) qPCR quantitation of the expression level of TET s. (L) qPCR quantitation of the expression level of energy/stress and nutritional sensor gene expression. (M) Quantitation of BrdU incorporated into nuclei of cells in S-phase, lactic (LA) acid in culture media, cellular SAβ-Gal activity, and ROS. (N) Heatmap of senescence markers and RRM2 in PBMCs. Bar and line graphs show the means ± SD. Boxplots show the first and third quartiles and median values. All points are shown as empty, and mean points as filled circles. The distribution of all data points is shown by Beeswarm in Violin plots. Statistical significance was assessed using Student’s t test for two-group comparisons. p -values are presented as follows: ns (not significant), p ≤ 5 × 10 −1 , ∗p ≤ 5 × 10 −2 , ∗∗p ≤ 5 × 10 −3 , ∗∗∗p ≤ 5 × 10 −4 , ∗∗∗∗p ≤ 5 × 10 −5 .

    Article Snippet: Mouse monoclonal anti-BrdU antibody , Santa Cruz Biotechnology , RRID: AB_626766.

    Techniques: Activation Assay, CRISPR, Incubation, Expressing, Activity Assay, Gene Expression, Marker, Quantitation Assay

    Effects of stable VMP1 knockdown on cell proliferation, clone formation and pellet-forming ability of stem cells. A . Expression of VMP1 was determined by immunofluorescence staining. B . Western blot analysis of VMP1 protein levels after knockdown of VMP1 in MCF-7. C . BrdU incorporation assay evaluating the proliferative capacity of shVMP1 and shNC MCF-7 cells. BrdU-positive cells were stained and counted. D. Proliferation ability of VMP1 knockdown MCF-7 cells was evaluated using the CCK8 assay. E . The clone formation experiment detected the clone formation ability of MCF-7 breast cancer cells after the knocking down of VMP1 gene. F . The migration ability of MCF-7 cells after VMP1 knockdown detected by Transwell assay. G . Pellet-forming capacity of stem cells in MCF-7 breast cancer cells was measured after VMP1 knockdown. All experiments were performed in four groups: shNC, shVMP1#, shVMP1#2 and shVMP1#2 + VMP1 overexpression (rescue group). * p < 0.05, ** p < 0.01, *** p < 0.001

    Journal: Cancer Cell International

    Article Title: VMP1 inhibits the progression of breast cancer via regulating PI3K/AKT and MEK/ERK signaling pathway

    doi: 10.1186/s12935-025-04149-3

    Figure Lengend Snippet: Effects of stable VMP1 knockdown on cell proliferation, clone formation and pellet-forming ability of stem cells. A . Expression of VMP1 was determined by immunofluorescence staining. B . Western blot analysis of VMP1 protein levels after knockdown of VMP1 in MCF-7. C . BrdU incorporation assay evaluating the proliferative capacity of shVMP1 and shNC MCF-7 cells. BrdU-positive cells were stained and counted. D. Proliferation ability of VMP1 knockdown MCF-7 cells was evaluated using the CCK8 assay. E . The clone formation experiment detected the clone formation ability of MCF-7 breast cancer cells after the knocking down of VMP1 gene. F . The migration ability of MCF-7 cells after VMP1 knockdown detected by Transwell assay. G . Pellet-forming capacity of stem cells in MCF-7 breast cancer cells was measured after VMP1 knockdown. All experiments were performed in four groups: shNC, shVMP1#, shVMP1#2 and shVMP1#2 + VMP1 overexpression (rescue group). * p < 0.05, ** p < 0.01, *** p < 0.001

    Article Snippet: A mouse monoclonal anti-BrdU antibody (Proteintech) was applied to the cells and incubated overnight at 4 °C.

    Techniques: Knockdown, Expressing, Immunofluorescence, Staining, Western Blot, BrdU Incorporation Assay, CCK-8 Assay, Migration, Transwell Assay, Over Expression

    Overexpression of VMP1 inhibited cell proliferation, migration, and tumorigenesis in breast cancer cells. A . Immunofluorescence staining for VMP1 (red) in BT-549 cells of NC (control) and VMP1 overexpression (VMP1) groups; nuclei were counterstained with DAPI (blue). B . Western blot analysis of VMP1 protein levels in NC and VMP1 BT-549 cells; GAPDH served as a loading control. C . CCK-8 assay evaluating the proliferation ability of NC and VMP1 BT-549 cells at indicated time points. (D) BrdU incorporation assay was conducted to assess cell proliferative capacity. BrdU-positive cells were stained green, nuclei were counterstained blue with DAPI, and the percentage of BrdU-positive cells was quantified. (E) Overexpression of VMP1 and changes in cell migration ability of breast cancer cells BT-549 were detected by Transwell assay. (F) Clonogenic assay and analytical results of BT-549 cell lines. G - J . Stable overexpression of VMP1 inhibits tumor-formation of breast cancer cell BT-549 in nude mice. * p < 0.05, ** p < 0.01, *** p < 0.001

    Journal: Cancer Cell International

    Article Title: VMP1 inhibits the progression of breast cancer via regulating PI3K/AKT and MEK/ERK signaling pathway

    doi: 10.1186/s12935-025-04149-3

    Figure Lengend Snippet: Overexpression of VMP1 inhibited cell proliferation, migration, and tumorigenesis in breast cancer cells. A . Immunofluorescence staining for VMP1 (red) in BT-549 cells of NC (control) and VMP1 overexpression (VMP1) groups; nuclei were counterstained with DAPI (blue). B . Western blot analysis of VMP1 protein levels in NC and VMP1 BT-549 cells; GAPDH served as a loading control. C . CCK-8 assay evaluating the proliferation ability of NC and VMP1 BT-549 cells at indicated time points. (D) BrdU incorporation assay was conducted to assess cell proliferative capacity. BrdU-positive cells were stained green, nuclei were counterstained blue with DAPI, and the percentage of BrdU-positive cells was quantified. (E) Overexpression of VMP1 and changes in cell migration ability of breast cancer cells BT-549 were detected by Transwell assay. (F) Clonogenic assay and analytical results of BT-549 cell lines. G - J . Stable overexpression of VMP1 inhibits tumor-formation of breast cancer cell BT-549 in nude mice. * p < 0.05, ** p < 0.01, *** p < 0.001

    Article Snippet: A mouse monoclonal anti-BrdU antibody (Proteintech) was applied to the cells and incubated overnight at 4 °C.

    Techniques: Over Expression, Migration, Immunofluorescence, Staining, Control, Western Blot, CCK-8 Assay, BrdU Incorporation Assay, Transwell Assay, Clonogenic Assay