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sirna loading  (Santa Cruz Biotechnology)


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    Structured Review

    Santa Cruz Biotechnology sirna loading
    Endometrial tumor microenvironment secreted factors induce an ASC phenotype with elevated expression of ITGA7 <t>and</t> <t>PAI-1.</t> A ITGA7 and B PAI-1 fold gene expression in ASCs followed by treatment with KLE and EME6/7 conditioned media (CM). C PAI-1 gene expression in ASC treated with PAI-1 <t>siRNA</t> before exposure to KLE conditioned media (KLE), blocks the PAI-1 increase observed after endometrial exposure. D Indirect co-culture system for ASC and KLE or ASC and EME6/7. E Gene expression of ITGA7 and F PAI-1 in ASC after 48 h of indirect co-culture. Values are means ± standard errors, from one-way ANOVA analysis followed with Tukey’s multiple comparisons test. * p = 0.05; ** p < 0.01; **** p < 0.0001; n = 3 biological replicates with three technical replicates per group
    Sirna Loading, supplied by Santa Cruz Biotechnology, used in various techniques. Bioz Stars score: 93/100, based on 25 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Images

    1) Product Images from "Developing Nanoparticle-Based Therapeutics for Targeting the Microenvironment in Obesity-Induced Endometrial Cancer"

    Article Title: Developing Nanoparticle-Based Therapeutics for Targeting the Microenvironment in Obesity-Induced Endometrial Cancer

    Journal: Cellular and Molecular Bioengineering

    doi: 10.1007/s12195-025-00853-2

    Endometrial tumor microenvironment secreted factors induce an ASC phenotype with elevated expression of ITGA7 and PAI-1. A ITGA7 and B PAI-1 fold gene expression in ASCs followed by treatment with KLE and EME6/7 conditioned media (CM). C PAI-1 gene expression in ASC treated with PAI-1 siRNA before exposure to KLE conditioned media (KLE), blocks the PAI-1 increase observed after endometrial exposure. D Indirect co-culture system for ASC and KLE or ASC and EME6/7. E Gene expression of ITGA7 and F PAI-1 in ASC after 48 h of indirect co-culture. Values are means ± standard errors, from one-way ANOVA analysis followed with Tukey’s multiple comparisons test. * p = 0.05; ** p < 0.01; **** p < 0.0001; n = 3 biological replicates with three technical replicates per group
    Figure Legend Snippet: Endometrial tumor microenvironment secreted factors induce an ASC phenotype with elevated expression of ITGA7 and PAI-1. A ITGA7 and B PAI-1 fold gene expression in ASCs followed by treatment with KLE and EME6/7 conditioned media (CM). C PAI-1 gene expression in ASC treated with PAI-1 siRNA before exposure to KLE conditioned media (KLE), blocks the PAI-1 increase observed after endometrial exposure. D Indirect co-culture system for ASC and KLE or ASC and EME6/7. E Gene expression of ITGA7 and F PAI-1 in ASC after 48 h of indirect co-culture. Values are means ± standard errors, from one-way ANOVA analysis followed with Tukey’s multiple comparisons test. * p = 0.05; ** p < 0.01; **** p < 0.0001; n = 3 biological replicates with three technical replicates per group

    Techniques Used: Expressing, Gene Expression, Co-Culture Assay

    Fabrication and Characterization of nanoparticles. A fabrication of the LCMSN construct depicting the siRNA loading in the MSN core, liposomes, ITGA7 antibody conjugation and their fusion into the final construct ITGA7-LCMSN schematic. B Hydrodynamic size, and zeta potential evolution of MSN, loaded MSN with lipids and complete LCMSN with ITGA7 antibody (AB). C TEM images of implemented MSN, D siRNA loading and release and E and F TEM of negatively stained particles upon AB conjugation. Scale bar = 100 nm
    Figure Legend Snippet: Fabrication and Characterization of nanoparticles. A fabrication of the LCMSN construct depicting the siRNA loading in the MSN core, liposomes, ITGA7 antibody conjugation and their fusion into the final construct ITGA7-LCMSN schematic. B Hydrodynamic size, and zeta potential evolution of MSN, loaded MSN with lipids and complete LCMSN with ITGA7 antibody (AB). C TEM images of implemented MSN, D siRNA loading and release and E and F TEM of negatively stained particles upon AB conjugation. Scale bar = 100 nm

    Techniques Used: Construct, Liposomes, Conjugation Assay, Zeta Potential Analyzer, Staining

    Whole body biodistribution and siRNA delivery efficiency of DyLight 633-labeled ITGA7-LCMSNs loaded with PAI-1 siRNA after IP injection. A KINO images of mice injected intraperitoneally with Dy633 ITGA7-LCMSN and untargeted LCMSN, B ex vivo imaging of uterus at t = 24 h showing nanoparticle retention. C ex vivo KINO images of gonadal fat. D quantitative measurement of organ nanoparticle retention and E uterus nanoparticle fluorescence after 48 h of IP injection. F PAI-1 and ITGA7 gene expression in the uterus after in vivo IP injection of ITGA7-LCMSNs loaded with PAI-1 siRNA. G Endometrial PAI-1 gene expression in ob/ob and lean (WT) animals, as well as ob/ob animals treated with targeted (ITGA7-LCMSN) and untargeted (LCMSN) nanoparticles loaded with PAI-1 siRNA. Values are means ± standard errors, from unpaired t test. ** p < 0.001; **** p < 0.0001; n = 3 animals per group
    Figure Legend Snippet: Whole body biodistribution and siRNA delivery efficiency of DyLight 633-labeled ITGA7-LCMSNs loaded with PAI-1 siRNA after IP injection. A KINO images of mice injected intraperitoneally with Dy633 ITGA7-LCMSN and untargeted LCMSN, B ex vivo imaging of uterus at t = 24 h showing nanoparticle retention. C ex vivo KINO images of gonadal fat. D quantitative measurement of organ nanoparticle retention and E uterus nanoparticle fluorescence after 48 h of IP injection. F PAI-1 and ITGA7 gene expression in the uterus after in vivo IP injection of ITGA7-LCMSNs loaded with PAI-1 siRNA. G Endometrial PAI-1 gene expression in ob/ob and lean (WT) animals, as well as ob/ob animals treated with targeted (ITGA7-LCMSN) and untargeted (LCMSN) nanoparticles loaded with PAI-1 siRNA. Values are means ± standard errors, from unpaired t test. ** p < 0.001; **** p < 0.0001; n = 3 animals per group

    Techniques Used: Labeling, Injection, Ex Vivo, Imaging, Fluorescence, Gene Expression, In Vivo

    Related Articles

    Cell Culture:

    Article Title: Aging, Plasminogen Activator Inhibitor 1, Brain Cell Senescence, and Alzheimer’s Disease
    Article Snippet: The lentivirus was packaged in 293T cells and transduced into target cells as company’s instruction (System Biosciences, Palo Alto, CA USA). .. Primary human astrocytes (ScienCell Research Laboratories, Catlog No #1800, Carlsbad, CA USA), cultured with Astrocyte Medium (Catlog No #1801, Carlsbad, CA USA), were transfected with non-targeted (NT) siRNA or PAI-1 siRNA (Santa Cruz, SC-37007 and SC-36179) for 24 hours and then treated with 200 μM H 2 O 2 in serum-free medium for 2 days. ..

    Transfection:

    Article Title: Aging, Plasminogen Activator Inhibitor 1, Brain Cell Senescence, and Alzheimer’s Disease
    Article Snippet: The lentivirus was packaged in 293T cells and transduced into target cells as company’s instruction (System Biosciences, Palo Alto, CA USA). .. Primary human astrocytes (ScienCell Research Laboratories, Catlog No #1800, Carlsbad, CA USA), cultured with Astrocyte Medium (Catlog No #1801, Carlsbad, CA USA), were transfected with non-targeted (NT) siRNA or PAI-1 siRNA (Santa Cruz, SC-37007 and SC-36179) for 24 hours and then treated with 200 μM H 2 O 2 in serum-free medium for 2 days. ..

    Article Title: PAI-1 Regulation of p53 Expression and Senescence in Type II Alveolar Epithelial Cells
    Article Snippet: A549 cells were cultured with Ham’s F-12 medium (21127-022, GibCo, CA, USA) containing 10% FBS and antibiotics. .. The cells were transfected with non-target siRNA or PAI-1 siRNA (SC36179; Santa Cruz, Dallas, TX, USA) for 24 h and then treated with bleomycin (5 mU/mL, 203401; Calbiochem, San Diego, CA, USA) for another 24 h, followed by culturing in a serum-free and bleomycin-free medium for 24 hrs. ..

    Article Title: Plasminogen activator inhibitor 1, fibroblast apoptosis resistance, and aging-related susceptibility to lung fibrosis
    Article Snippet: Apoptotic cells were analyzed with flow cytometer at UAB Flow Cytometry facility. siRNA transfection Primary human lung fibroblasts (CCL-210 cells), purchased from American Type Culture Collection (ATCC, Manassas, VA), were seeded in 60 mm cell culture dish at the density of 4 × 10 5 cells/well. .. After reaching 60–80% confluence, cells were transfected with either PAI-1 siRNA (Santa Cruz, sc36179) or Non-target siRNA (Santa Cruz, control siRNA-A) according to the protocol provided by the manufacturer. ..

    Article Title: TM5441, a plasminogen activator inhibitor-1 inhibitor, protects against high fat diet-induced non-alcoholic fatty liver disease
    Article Snippet: .. For PAI-1 knockdown in HepG2 cells, after reaching 70–80% confluence, cells were seeded in 6-well plates with medium containing 20 nM PAI-1 siRNA (Santa Cruz, sc36179) or non-target siRNA (Bioneer, Daejeon, Republic of Korea) and LipofectaminTM RNAiMAX (Invitrogen, Carlsbad, CA, USA) according to the manufacturer's protocol and used for 24 hours transfection. ..

    Article Title: PAI-1 Regulation of p53 Expression and Senescence in Type II Alveolar Epithelial Cells.
    Article Snippet: A549 cells were cultured with Ham’s F-12 medium (21127-022, GibCo, CA, USA) containing 10% FBS and antibiotics. .. The cells were transfected with non-target siRNA or PAI-1 siRNA (SC36179; Santa Cruz, Dallas, TX, USA) for 24 h and then treated with bleomycin (5 mU/mL, 203401; Calbiochem, San Diego, CA, USA) for another 24 h, followed by culturing in a serum-free and bleomycin-free medium for 24 hrs. ..

    Control:

    Article Title: Plasminogen activator inhibitor 1, fibroblast apoptosis resistance, and aging-related susceptibility to lung fibrosis
    Article Snippet: Apoptotic cells were analyzed with flow cytometer at UAB Flow Cytometry facility. siRNA transfection Primary human lung fibroblasts (CCL-210 cells), purchased from American Type Culture Collection (ATCC, Manassas, VA), were seeded in 60 mm cell culture dish at the density of 4 × 10 5 cells/well. .. After reaching 60–80% confluence, cells were transfected with either PAI-1 siRNA (Santa Cruz, sc36179) or Non-target siRNA (Santa Cruz, control siRNA-A) according to the protocol provided by the manufacturer. ..

    Article Title: Role of plasminogen activator inhibitor-1 in glucocorticoid-induced muscle change in mice.
    Article Snippet: Glucocorticoid (GC) is widely used for the therapy of various diseases, such as inflammatory bowel disease and rheumatoid arthritis [1, 2].. However, long-term use of GC induces numerous adverse effects such as infection, diabetes, muscle wasting and osteoporosis, and these adverse effects largely limit clinical use of GC [3–5].. Muscle wasting is one of the serious adverse effects of GC [4].

    Knockdown:

    Article Title: TM5441, a plasminogen activator inhibitor-1 inhibitor, protects against high fat diet-induced non-alcoholic fatty liver disease
    Article Snippet: .. For PAI-1 knockdown in HepG2 cells, after reaching 70–80% confluence, cells were seeded in 6-well plates with medium containing 20 nM PAI-1 siRNA (Santa Cruz, sc36179) or non-target siRNA (Bioneer, Daejeon, Republic of Korea) and LipofectaminTM RNAiMAX (Invitrogen, Carlsbad, CA, USA) according to the manufacturer's protocol and used for 24 hours transfection. ..

    Negative Control:

    Article Title: ACT001, a novel PAI-1 inhibitor, exerts synergistic effects in combination with cisplatin by inhibiting PI3K/AKT pathway in glioma.
    Article Snippet: Cell culture and transfection of siRNAs U118MG cells were cultured in Dulbecco’s modified Eagle’s medium (Gibco) supplemented with 10% foetal bovine serum (Gibco), 100 IU/mL penicillin and 0.1 mg/ mL streptomycin (HyClone) in a humidified incubator containing 5% CO2 at 37 °C. .. PAI-1 siRNA and the negative control siRNA were purchased from Santa Cruz Biotechnology, Inc. .. The cells were plated in 6-well plates (Corning, America) at a concentration of 3 × 105 cells per plate and grown overnight before transfection.

    Article Title: ACT001, a novel PAI-1 inhibitor, exerts synergistic effects in combination with cisplatin by inhibiting PI3K/AKT pathway in glioma
    Article Snippet: U118MG cells were cultured in Dulbecco’s modified Eagle’s medium (Gibco) supplemented with 10% foetal bovine serum (Gibco), 100 IU/mL penicillin and 0.1 mg/mL streptomycin (HyClone) in a humidified incubator containing 5% CO 2 at 37 °C. .. PAI-1 siRNA and the negative control siRNA were purchased from Santa Cruz Biotechnology, Inc. .. The cells were plated in 6-well plates (Corning, America) at a concentration of 3 × 10 5 cells per plate and grown overnight before transfection.



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    Figure 1. PAI-1 binds to proteasome components in A549 cells. (A,D) Immunoprecipitation- immunoblotting analysis of PAI-1 interaction with proteasome 20S α3 and 19S Rpt3/S6b subunits in A549 cells. A549 cells were transfected with PAI-1 <t>siRNA/non-target</t> (NT) siRNA or transduced with control/PAI-1 expressing viruses and then treated with bleomycin. PAI-1 protein was immunopre- cipitated with anti-mouse PAI-1 monoclonal antibody, and Westerns were conducted with specific antibody to 20Sα3 or 19SRpt3/S6b. Proteins on the membrane were stained with Ponceau S to show equal sample loading. (B,C,E,F) Semi-quantification of the band intensities, normalized by the corresponding protein staining band (n = 3).
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    Image Search Results


    Endometrial tumor microenvironment secreted factors induce an ASC phenotype with elevated expression of ITGA7 and PAI-1. A ITGA7 and B PAI-1 fold gene expression in ASCs followed by treatment with KLE and EME6/7 conditioned media (CM). C PAI-1 gene expression in ASC treated with PAI-1 siRNA before exposure to KLE conditioned media (KLE), blocks the PAI-1 increase observed after endometrial exposure. D Indirect co-culture system for ASC and KLE or ASC and EME6/7. E Gene expression of ITGA7 and F PAI-1 in ASC after 48 h of indirect co-culture. Values are means ± standard errors, from one-way ANOVA analysis followed with Tukey’s multiple comparisons test. * p = 0.05; ** p < 0.01; **** p < 0.0001; n = 3 biological replicates with three technical replicates per group

    Journal: Cellular and Molecular Bioengineering

    Article Title: Developing Nanoparticle-Based Therapeutics for Targeting the Microenvironment in Obesity-Induced Endometrial Cancer

    doi: 10.1007/s12195-025-00853-2

    Figure Lengend Snippet: Endometrial tumor microenvironment secreted factors induce an ASC phenotype with elevated expression of ITGA7 and PAI-1. A ITGA7 and B PAI-1 fold gene expression in ASCs followed by treatment with KLE and EME6/7 conditioned media (CM). C PAI-1 gene expression in ASC treated with PAI-1 siRNA before exposure to KLE conditioned media (KLE), blocks the PAI-1 increase observed after endometrial exposure. D Indirect co-culture system for ASC and KLE or ASC and EME6/7. E Gene expression of ITGA7 and F PAI-1 in ASC after 48 h of indirect co-culture. Values are means ± standard errors, from one-way ANOVA analysis followed with Tukey’s multiple comparisons test. * p = 0.05; ** p < 0.01; **** p < 0.0001; n = 3 biological replicates with three technical replicates per group

    Article Snippet: The siRNA loading (PAI-1/SERPINE1, Santa Cruz) was carried out by incubating siRNA with positive MSN in water (1-2% wt) for 30 min, followed by isolation of MSN-siRNA by a 15 min 21 K rcf centrifugation.

    Techniques: Expressing, Gene Expression, Co-Culture Assay

    Fabrication and Characterization of nanoparticles. A fabrication of the LCMSN construct depicting the siRNA loading in the MSN core, liposomes, ITGA7 antibody conjugation and their fusion into the final construct ITGA7-LCMSN schematic. B Hydrodynamic size, and zeta potential evolution of MSN, loaded MSN with lipids and complete LCMSN with ITGA7 antibody (AB). C TEM images of implemented MSN, D siRNA loading and release and E and F TEM of negatively stained particles upon AB conjugation. Scale bar = 100 nm

    Journal: Cellular and Molecular Bioengineering

    Article Title: Developing Nanoparticle-Based Therapeutics for Targeting the Microenvironment in Obesity-Induced Endometrial Cancer

    doi: 10.1007/s12195-025-00853-2

    Figure Lengend Snippet: Fabrication and Characterization of nanoparticles. A fabrication of the LCMSN construct depicting the siRNA loading in the MSN core, liposomes, ITGA7 antibody conjugation and their fusion into the final construct ITGA7-LCMSN schematic. B Hydrodynamic size, and zeta potential evolution of MSN, loaded MSN with lipids and complete LCMSN with ITGA7 antibody (AB). C TEM images of implemented MSN, D siRNA loading and release and E and F TEM of negatively stained particles upon AB conjugation. Scale bar = 100 nm

    Article Snippet: The siRNA loading (PAI-1/SERPINE1, Santa Cruz) was carried out by incubating siRNA with positive MSN in water (1-2% wt) for 30 min, followed by isolation of MSN-siRNA by a 15 min 21 K rcf centrifugation.

    Techniques: Construct, Liposomes, Conjugation Assay, Zeta Potential Analyzer, Staining

    Whole body biodistribution and siRNA delivery efficiency of DyLight 633-labeled ITGA7-LCMSNs loaded with PAI-1 siRNA after IP injection. A KINO images of mice injected intraperitoneally with Dy633 ITGA7-LCMSN and untargeted LCMSN, B ex vivo imaging of uterus at t = 24 h showing nanoparticle retention. C ex vivo KINO images of gonadal fat. D quantitative measurement of organ nanoparticle retention and E uterus nanoparticle fluorescence after 48 h of IP injection. F PAI-1 and ITGA7 gene expression in the uterus after in vivo IP injection of ITGA7-LCMSNs loaded with PAI-1 siRNA. G Endometrial PAI-1 gene expression in ob/ob and lean (WT) animals, as well as ob/ob animals treated with targeted (ITGA7-LCMSN) and untargeted (LCMSN) nanoparticles loaded with PAI-1 siRNA. Values are means ± standard errors, from unpaired t test. ** p < 0.001; **** p < 0.0001; n = 3 animals per group

    Journal: Cellular and Molecular Bioengineering

    Article Title: Developing Nanoparticle-Based Therapeutics for Targeting the Microenvironment in Obesity-Induced Endometrial Cancer

    doi: 10.1007/s12195-025-00853-2

    Figure Lengend Snippet: Whole body biodistribution and siRNA delivery efficiency of DyLight 633-labeled ITGA7-LCMSNs loaded with PAI-1 siRNA after IP injection. A KINO images of mice injected intraperitoneally with Dy633 ITGA7-LCMSN and untargeted LCMSN, B ex vivo imaging of uterus at t = 24 h showing nanoparticle retention. C ex vivo KINO images of gonadal fat. D quantitative measurement of organ nanoparticle retention and E uterus nanoparticle fluorescence after 48 h of IP injection. F PAI-1 and ITGA7 gene expression in the uterus after in vivo IP injection of ITGA7-LCMSNs loaded with PAI-1 siRNA. G Endometrial PAI-1 gene expression in ob/ob and lean (WT) animals, as well as ob/ob animals treated with targeted (ITGA7-LCMSN) and untargeted (LCMSN) nanoparticles loaded with PAI-1 siRNA. Values are means ± standard errors, from unpaired t test. ** p < 0.001; **** p < 0.0001; n = 3 animals per group

    Article Snippet: The siRNA loading (PAI-1/SERPINE1, Santa Cruz) was carried out by incubating siRNA with positive MSN in water (1-2% wt) for 30 min, followed by isolation of MSN-siRNA by a 15 min 21 K rcf centrifugation.

    Techniques: Labeling, Injection, Ex Vivo, Imaging, Fluorescence, Gene Expression, In Vivo

    Relative expression of PAI-1 in SiHa cervical squamous cell carcinoma (CSCC) cells after treatment with GPER1 agonist G1 and antagonist G36 and effects of SERPINE1/PAI1 knockdown on viability and migration. (A) PAI-1 expression was significantly reduced after treatment with 0.5 μM GPER1 agonist G1 and significantly increased after treatment with 1 μM antagonist G36. (B) Successful knockdown of SERPINE1/PAI1 was confirmed by RT-qPCR. No impact of SERPINE1/PAI1 knockdown on viability (C) and migration (D) in SiHa CSCC cells was found. (A-C) Unpaired t-test, two tailed, mean with standard error of the mean (SEM); (A) n=3; (B) n=6, (C) n=4; *p<0.05, **p<0.01. (D) Two-way ANOVA with Dunnett’s multiple comparisons test, mean with standard error of the mean (SEM); n=4.

    Journal: Cancer Genomics & Proteomics

    Article Title: G Protein-coupled Estrogen Receptor 1 (GPER1) Regulates Expression of SERPINE1 /PAI-1 and Inhibits Tumorigenic Potential of Cervical Squamous Cell Carcinoma Cells In Vitro

    doi: 10.21873/cgp.20482

    Figure Lengend Snippet: Relative expression of PAI-1 in SiHa cervical squamous cell carcinoma (CSCC) cells after treatment with GPER1 agonist G1 and antagonist G36 and effects of SERPINE1/PAI1 knockdown on viability and migration. (A) PAI-1 expression was significantly reduced after treatment with 0.5 μM GPER1 agonist G1 and significantly increased after treatment with 1 μM antagonist G36. (B) Successful knockdown of SERPINE1/PAI1 was confirmed by RT-qPCR. No impact of SERPINE1/PAI1 knockdown on viability (C) and migration (D) in SiHa CSCC cells was found. (A-C) Unpaired t-test, two tailed, mean with standard error of the mean (SEM); (A) n=3; (B) n=6, (C) n=4; *p<0.05, **p<0.01. (D) Two-way ANOVA with Dunnett’s multiple comparisons test, mean with standard error of the mean (SEM); n=4.

    Article Snippet: Meanwhile, the transfection mix for a 6-well plate, consisting of 500 μl OptiMEM, 3 μl SERPINE1 siRNA (sc-36179, Santa Cruz Biotechnology, Dallas, TX, USA) or control siRNA (sc-37007, Santa Cruz Biotechnology) and 5 μl Invitrogen Lipofectamine RNAiMAX transfection reagent (Thermo Fisher Scientific) was vortexed and incubated for 20 min at room temperature.

    Techniques: Expressing, Knockdown, Migration, Quantitative RT-PCR, Two Tailed Test

    Colony and sphere formation and size of SiHa cervical squamous cell carcinoma (CSCC) cells after suppression of SERPINE1/PAI1 expression by siRNA. The number of colonies remained unchanged after knockdown of SERPINE1/PAI-1 (A), while the colony size was slightly reduced (B). Sphere number (C) and size (D) of SiHa CSCC cells was significantly reduced after SERPINE1/PAI1 knockdown. (A, C) Violin plot with median (middle line), first quartile (25%, lower line) and third quartile (75%, upper line). Unpaired t-test, two tailed (A, B, D), one tailed (C), mean with standard error of the mean (SEM); (A, B) n=11, (B-D) n=9; *p<0.05.

    Journal: Cancer Genomics & Proteomics

    Article Title: G Protein-coupled Estrogen Receptor 1 (GPER1) Regulates Expression of SERPINE1 /PAI-1 and Inhibits Tumorigenic Potential of Cervical Squamous Cell Carcinoma Cells In Vitro

    doi: 10.21873/cgp.20482

    Figure Lengend Snippet: Colony and sphere formation and size of SiHa cervical squamous cell carcinoma (CSCC) cells after suppression of SERPINE1/PAI1 expression by siRNA. The number of colonies remained unchanged after knockdown of SERPINE1/PAI-1 (A), while the colony size was slightly reduced (B). Sphere number (C) and size (D) of SiHa CSCC cells was significantly reduced after SERPINE1/PAI1 knockdown. (A, C) Violin plot with median (middle line), first quartile (25%, lower line) and third quartile (75%, upper line). Unpaired t-test, two tailed (A, B, D), one tailed (C), mean with standard error of the mean (SEM); (A, B) n=11, (B-D) n=9; *p<0.05.

    Article Snippet: Meanwhile, the transfection mix for a 6-well plate, consisting of 500 μl OptiMEM, 3 μl SERPINE1 siRNA (sc-36179, Santa Cruz Biotechnology, Dallas, TX, USA) or control siRNA (sc-37007, Santa Cruz Biotechnology) and 5 μl Invitrogen Lipofectamine RNAiMAX transfection reagent (Thermo Fisher Scientific) was vortexed and incubated for 20 min at room temperature.

    Techniques: Expressing, Knockdown, Two Tailed Test, One-tailed Test

    Figure 1. PAI-1 binds to proteasome components in A549 cells. (A,D) Immunoprecipitation- immunoblotting analysis of PAI-1 interaction with proteasome 20S α3 and 19S Rpt3/S6b subunits in A549 cells. A549 cells were transfected with PAI-1 siRNA/non-target (NT) siRNA or transduced with control/PAI-1 expressing viruses and then treated with bleomycin. PAI-1 protein was immunopre- cipitated with anti-mouse PAI-1 monoclonal antibody, and Westerns were conducted with specific antibody to 20Sα3 or 19SRpt3/S6b. Proteins on the membrane were stained with Ponceau S to show equal sample loading. (B,C,E,F) Semi-quantification of the band intensities, normalized by the corresponding protein staining band (n = 3).

    Journal: Cells

    Article Title: PAI-1 Regulation of p53 Expression and Senescence in Type II Alveolar Epithelial Cells.

    doi: 10.3390/cells12152008

    Figure Lengend Snippet: Figure 1. PAI-1 binds to proteasome components in A549 cells. (A,D) Immunoprecipitation- immunoblotting analysis of PAI-1 interaction with proteasome 20S α3 and 19S Rpt3/S6b subunits in A549 cells. A549 cells were transfected with PAI-1 siRNA/non-target (NT) siRNA or transduced with control/PAI-1 expressing viruses and then treated with bleomycin. PAI-1 protein was immunopre- cipitated with anti-mouse PAI-1 monoclonal antibody, and Westerns were conducted with specific antibody to 20Sα3 or 19SRpt3/S6b. Proteins on the membrane were stained with Ponceau S to show equal sample loading. (B,C,E,F) Semi-quantification of the band intensities, normalized by the corresponding protein staining band (n = 3).

    Article Snippet: The cells were transfected with non-target siRNA or PAI-1 siRNA (SC36179; Santa Cruz, Dallas, TX, USA) for 24 h and then treated with bleomycin (5 mU/mL, 203401; Calbiochem, San Diego, CA, USA) for another 24 h, followed by culturing in a serum-free and bleomycin-free medium for 24 hrs.

    Techniques: Immunoprecipitation, Western Blot, Transfection, Transduction, Control, Expressing, Membrane, Staining

    Figure 4. Silencing PAI-1 attenuates bleomycin-induced senescence in A549 cells. (A–D) West- ern analyses and quantification of PAI-1, p53, and p21. A549 cells were transfected with PAI-1 siRNA/NTsiRNA and then treated with bleomycin/saline. The results were normalized by GAPDH (n = 3). (E,F) X-gal staining and quantification of SA-β-gal positive astrocytes (n = 5). The results were expressed as percentages of total cells. (G,H) ELISAs of IL-6 and IGFBP3 proteins in the culture medium (n = 4–6).

    Journal: Cells

    Article Title: PAI-1 Regulation of p53 Expression and Senescence in Type II Alveolar Epithelial Cells.

    doi: 10.3390/cells12152008

    Figure Lengend Snippet: Figure 4. Silencing PAI-1 attenuates bleomycin-induced senescence in A549 cells. (A–D) West- ern analyses and quantification of PAI-1, p53, and p21. A549 cells were transfected with PAI-1 siRNA/NTsiRNA and then treated with bleomycin/saline. The results were normalized by GAPDH (n = 3). (E,F) X-gal staining and quantification of SA-β-gal positive astrocytes (n = 5). The results were expressed as percentages of total cells. (G,H) ELISAs of IL-6 and IGFBP3 proteins in the culture medium (n = 4–6).

    Article Snippet: The cells were transfected with non-target siRNA or PAI-1 siRNA (SC36179; Santa Cruz, Dallas, TX, USA) for 24 h and then treated with bleomycin (5 mU/mL, 203401; Calbiochem, San Diego, CA, USA) for another 24 h, followed by culturing in a serum-free and bleomycin-free medium for 24 hrs.

    Techniques: Transfection, Saline, Staining