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    Structured Review

    Bioss p stat3
    Naringin inhibits <t>JAK2/STAT3</t> signaling and restores tight junction proteins in dextran sulfate sodium-induced colitis. (A) Representative western blotting images of p-JAK2, JAK2, p-STAT3, STAT3, IL-6, occludin, ZO-1 and β-actin expression in colon tissues. Densitometric semi-quantification of the relative protein expression levels of (B) p-JAK2/β-actin, (C) JAK2/β-actin, (D) p-JAK2/JAK2, (E) p-STAT3/β-actin, (F) STAT3/β-actin, (G) p-STAT3/STAT3, (H) IL-6/β-actin, (I) occludin/β-actin and (J) ZO-1/β-actin. Data are presented as mean ± SEM. n=3. *P<0.05 and **P<0.01 vs. control group; # P<0.05 and ## P<0.01 vs. normal group. One-way ANOVA followed by Tukey's post-hoc test was applied. N, normal group; C, control group; Nar, naringin group; Mes, mesalazine group; p-, phosphorylated; JAK2, Janus kinase 2; STAT3, signal transducer and activator of transcription 3; IL-6, ZO-1, zona occludens-1.
    P Stat3, supplied by Bioss, used in various techniques. Bioz Stars score: 94/100, based on 50 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/stat3+(tyr705)+polyclonal+antibody/STAT3+(Tyr705)+Polyclonal+Antibody/pmc12865882-92-50-55
    Average 94 stars, based on 50 article reviews
    p stat3 - by Bioz Stars, 2026-09
    94/100 stars

    Images

    1) Product Images from "Naringin ameliorates intestinal injury in ulcerative colitis model mice by modulating the JAK2/STAT3 signaling pathway"

    Article Title: Naringin ameliorates intestinal injury in ulcerative colitis model mice by modulating the JAK2/STAT3 signaling pathway

    Journal: Molecular Medicine Reports

    doi: 10.3892/mmr.2026.13805

    Naringin inhibits JAK2/STAT3 signaling and restores tight junction proteins in dextran sulfate sodium-induced colitis. (A) Representative western blotting images of p-JAK2, JAK2, p-STAT3, STAT3, IL-6, occludin, ZO-1 and β-actin expression in colon tissues. Densitometric semi-quantification of the relative protein expression levels of (B) p-JAK2/β-actin, (C) JAK2/β-actin, (D) p-JAK2/JAK2, (E) p-STAT3/β-actin, (F) STAT3/β-actin, (G) p-STAT3/STAT3, (H) IL-6/β-actin, (I) occludin/β-actin and (J) ZO-1/β-actin. Data are presented as mean ± SEM. n=3. *P<0.05 and **P<0.01 vs. control group; # P<0.05 and ## P<0.01 vs. normal group. One-way ANOVA followed by Tukey's post-hoc test was applied. N, normal group; C, control group; Nar, naringin group; Mes, mesalazine group; p-, phosphorylated; JAK2, Janus kinase 2; STAT3, signal transducer and activator of transcription 3; IL-6, ZO-1, zona occludens-1.
    Figure Legend Snippet: Naringin inhibits JAK2/STAT3 signaling and restores tight junction proteins in dextran sulfate sodium-induced colitis. (A) Representative western blotting images of p-JAK2, JAK2, p-STAT3, STAT3, IL-6, occludin, ZO-1 and β-actin expression in colon tissues. Densitometric semi-quantification of the relative protein expression levels of (B) p-JAK2/β-actin, (C) JAK2/β-actin, (D) p-JAK2/JAK2, (E) p-STAT3/β-actin, (F) STAT3/β-actin, (G) p-STAT3/STAT3, (H) IL-6/β-actin, (I) occludin/β-actin and (J) ZO-1/β-actin. Data are presented as mean ± SEM. n=3. *P<0.05 and **P<0.01 vs. control group; # P<0.05 and ## P<0.01 vs. normal group. One-way ANOVA followed by Tukey's post-hoc test was applied. N, normal group; C, control group; Nar, naringin group; Mes, mesalazine group; p-, phosphorylated; JAK2, Janus kinase 2; STAT3, signal transducer and activator of transcription 3; IL-6, ZO-1, zona occludens-1.

    Techniques Used: Western Blot, Expressing, Control

    Naringin reverses IL-6-induced ZO-1 and occludin impairment in a STAT3-dependent manner. (A) Immunofluorescence staining for ZO-1 (blue) and occludin (green); nuclei were stained with DAPI (cyan). Merged shows the merged images of DAPI and respective protein staining. Quantitative analysis of relative (B) ZO-1 and (C) occludin protein expression. (n=3). Data are presented as mean ± SEM. *P<0.05 and **P<0.01 vs. IL-6 group; ## P<0.01 vs. normal group. One-way ANOVA followed by Tukey's post-hoc test was applied. ZO-1, zona occludens-1; N, normal group; Nar, naringin; STAT3, signal transducer and activator of transcription 3; si, small interfering RNA; NC, negative control.
    Figure Legend Snippet: Naringin reverses IL-6-induced ZO-1 and occludin impairment in a STAT3-dependent manner. (A) Immunofluorescence staining for ZO-1 (blue) and occludin (green); nuclei were stained with DAPI (cyan). Merged shows the merged images of DAPI and respective protein staining. Quantitative analysis of relative (B) ZO-1 and (C) occludin protein expression. (n=3). Data are presented as mean ± SEM. *P<0.05 and **P<0.01 vs. IL-6 group; ## P<0.01 vs. normal group. One-way ANOVA followed by Tukey's post-hoc test was applied. ZO-1, zona occludens-1; N, normal group; Nar, naringin; STAT3, signal transducer and activator of transcription 3; si, small interfering RNA; NC, negative control.

    Techniques Used: Immunofluorescence, Staining, Expressing, Small Interfering RNA, Negative Control

    Naringin suppresses JAK2/STAT3 activation in IL-6-stimulated Caco-2 cells with STAT3 silencing. (A) Western blot analysis of p-JAK2, JAK2, p-STAT3, STAT3, occludin and ZO-1 in Caco-2 cells under indicated treatments. (B) Validation of STAT3 knockdown efficiency: Relative STAT3 expression in cells transfected with siSTAT3 vs. siNC. ## P<0.01 vs. siNC. Densitometric semi-quantification of relative protein expression levels of (C) p-JAK2/β-actin, (D) JAK2/β-actin, (E) p-JAK2/JAK2, (F) p-STAT3/β-actin, (G) STAT3/β-actin, (H) p-STAT3/ STAT3, (I) occludin/β-actin, (J) ZO-1/β-actin. Data are presented as mean ± SEM. n=3. *P<0.05 and **P<0.01 vs. IL-6 group; ## P<0.01 vs. normal group; Δ P<0.05 and ΔΔ P<0.01 IL-6 + Nar group vs. IL-6 + Nar + siSTAT3 group. One-way ANOVA followed by Tukey's post-hoc test was applied. N, normal group; Nar, naringin group; Mes, mesalazine group; p-, phosphorylated; JAK2, Janus kinase 2; STAT3, signal transducer and activator of transcription 3; ZO-1, zona occludens-1; si, small interfering RNA; NC, negative control.
    Figure Legend Snippet: Naringin suppresses JAK2/STAT3 activation in IL-6-stimulated Caco-2 cells with STAT3 silencing. (A) Western blot analysis of p-JAK2, JAK2, p-STAT3, STAT3, occludin and ZO-1 in Caco-2 cells under indicated treatments. (B) Validation of STAT3 knockdown efficiency: Relative STAT3 expression in cells transfected with siSTAT3 vs. siNC. ## P<0.01 vs. siNC. Densitometric semi-quantification of relative protein expression levels of (C) p-JAK2/β-actin, (D) JAK2/β-actin, (E) p-JAK2/JAK2, (F) p-STAT3/β-actin, (G) STAT3/β-actin, (H) p-STAT3/ STAT3, (I) occludin/β-actin, (J) ZO-1/β-actin. Data are presented as mean ± SEM. n=3. *P<0.05 and **P<0.01 vs. IL-6 group; ## P<0.01 vs. normal group; Δ P<0.05 and ΔΔ P<0.01 IL-6 + Nar group vs. IL-6 + Nar + siSTAT3 group. One-way ANOVA followed by Tukey's post-hoc test was applied. N, normal group; Nar, naringin group; Mes, mesalazine group; p-, phosphorylated; JAK2, Janus kinase 2; STAT3, signal transducer and activator of transcription 3; ZO-1, zona occludens-1; si, small interfering RNA; NC, negative control.

    Techniques Used: Activation Assay, Western Blot, Biomarker Discovery, Knockdown, Expressing, Transfection, Small Interfering RNA, Negative Control

    Related Articles

    Bioprocessing:

    Article Title: PEITC restores chemosensitivity in cisplatin-resistant non-small cell lung cancer by targeting c-Myc/miR-424-5p
    Article Snippet: PEITC was purchased from Sigma-Aldrich (Shanghai, China) and cisplatin was purchased from Solarbio (Beijing, China). .. Polyclonal antibodies against JAK2 (bs-23003R), STAT3 (bsm-33223 M), phospho-STAT3 (bs-22386R), PI3K (bs-10657R), p-PI3K (bs-6417R), AKT (bs-6951R), p-AKT (bs-5193R), mTOR (bs-1992R), SOCS5 (bs-13664R), and SOCS6 (bs-10685R) were purchased from Bioss (Beijing, China); monoclonal antibodies against p-JAK2 (ab32101) and c-Myc (ab32072) were purchased from Abcam (Shanghai, China); and a polyclonal antibody against GAPDH (P30008M) was purchased from Abmart (Shanghai, China). .. Normal A549 NSCLC adenocarcinoma cell line was obtained from Procell (China), a cisplatin-resistant line of NSCLC cells (A549/DDP) was obtained from Procell (China), and a PC-9 NSCLC adenocarcinoma cell line was obtained from Zhongqiaoxinzhou (China).

    Article Title: PEITC restores chemosensitivity in cisplatin-resistant non-small cell lung cancer by targeting c-Myc/miR-424-5p.
    Article Snippet: PEITC was purchased from Sigma-Aldrich (Shanghai, China) and cisplatin was purchased from Solarbio (Beijing, China). .. Polyclonal antibodies against JAK2 (bs-23003R), STAT3 (bsm-33223 M), phospho-STAT3 (bs-22386R), PI3K (bs-10657R), p-PI3K (bs6417R), AKT (bs-6951R), p-AKT (bs-5193R), mTOR (bs-1992R), SOCS5 (bs-13664R), and SOCS6 (bs-10685R) were purchased from Bioss (Beijing, China); monoclonal antibodies against p-JAK2 (ab32101) and c-Myc (ab32072) were purchased from Abcam (Shanghai, China); and a polyclonal antibody against GAPDH (P30008M) was purchased from Abmart (Shanghai, China). .. Normal A549 NSCLC adenocarcinoma cell line was obtained from Procell (China), a cisplatin-resistant line of NSCLC cells (A549/DDP) was obtained from Procell (China), and a PC-9 NSCLC adenocarcinoma cell line was obtained from Zhongqiaoxinzhou (China).

    Gel Permeation Chromatography:

    Article Title: Deoxycholic Acid and Lipoteichoic Acid cooperatively drive macrophage M2/M1 polarization via TGR5/STAT3 and TLR2/NF-κB to fuel HCC progression in obesity
    Article Snippet: .. Primary antibody concentrations were: p-NFκB p65 (ab76302, a dilution ratio of 1:1000, Abcam), p-STAT3(bs-1658R, a dilution ratio of 1:1000, Bioss), GPC-3 (30021-1-AP, a dilution ratio of 1:1000, Proteintech), β-actin (66009-1-Ig, a dilution ratio of 1:2000, Proteintech), 53BP1 (ab175933, a dilution ratio of 1:1000, abcam), TLR2 (ab209216, a dilution ratio of 1:1000, Proteintech), TGR5 (ab72608, a dilution ratio of 1:1000, abcam), E-cadherin (ABP0083, a dilution ratio of 1:1000, Abbkine), N-cadherin (22018-1-AP, a dilution ratio of 1:1000, Proteintech), GPC-3 (30021-1-AP, a dilution ratio of 1:1000, Proteintech). .. Goat anti-rabbit secondary antibody (SA00001-4, a dilution ratio of 1:5000, Proteintech), goat anti-mouse secondary antibody (SA00001-1, a dilution ratio of 1:5000, Proteintech). β-actin was used as an internal reference, and the relative protein expression was calculated using the ImageJ system to read the grey values.

    Saline:

    Article Title: Naringin ameliorates intestinal injury in ulcerative colitis model mice by modulating the JAK2/STAT3 signaling pathway
    Article Snippet: The proteins were resolved by 8–12% SDS-PAGE and transferred to immunoblot PVDF membranes (cat. no. IPVH00010; Merck KGaA). .. The membranes were blocked with 5% non-fat dry milk in Tris-buffered saline containing 0.1% Tween-20 (TBST) for 2 h at room temperature, then incubated at 4°C overnight with primary antibodies against IL-6 (1:1,000; cat. no. Bs-0782R; BIOSS), phosphorylated (p-)JAK2 (1:1,000; cat. no. bs-2485R; BIOSS), JAK2 (1:1,000; cat. no. bs-0908R; BIOSS), p-STAT3 (1:1,000; cat. no. bs-1658R; BIOSS), STAT3 (1:1,000; cat. no. bs-55208R; BIOSS), occludin (1:1,000; cat. no. A2601; ABclonal Biotech Co., Ltd.), zona occludens-1 (ZO-1; 1:1,000; cat. no. A0659; ABclonal Biotech Co., Ltd.) and β-actin (1:1,000; cat. no. ab8227; Abcam). .. The membranes were washed with TBST three times for 10 min each and incubated with a horseradish peroxidase (HRP)-labeled secondary goat anti-rabbit (1:5,000; cat. no. ab6721; Abcam) antibodies for 1 h at room temperature.

    Article Title: Naringin ameliorates intestinal injury in ulcerative colitis model mice by modulating the JAK2/STAT3 signaling pathway.
    Article Snippet: ulcerative colitis (uc) is a chronic autoimmune disease characterized by mucosal inflammation and disrup‐ tion of the intestinal barrier.. Current therapies often produce adverse effects, underscoring the need for novel treatment options.. Naringin, a flavonoid from Citrus aurantium l., has shown anti‐inflammatory potential in inflammatory bowel disease.

    Incubation:

    Article Title: Naringin ameliorates intestinal injury in ulcerative colitis model mice by modulating the JAK2/STAT3 signaling pathway
    Article Snippet: The proteins were resolved by 8–12% SDS-PAGE and transferred to immunoblot PVDF membranes (cat. no. IPVH00010; Merck KGaA). .. The membranes were blocked with 5% non-fat dry milk in Tris-buffered saline containing 0.1% Tween-20 (TBST) for 2 h at room temperature, then incubated at 4°C overnight with primary antibodies against IL-6 (1:1,000; cat. no. Bs-0782R; BIOSS), phosphorylated (p-)JAK2 (1:1,000; cat. no. bs-2485R; BIOSS), JAK2 (1:1,000; cat. no. bs-0908R; BIOSS), p-STAT3 (1:1,000; cat. no. bs-1658R; BIOSS), STAT3 (1:1,000; cat. no. bs-55208R; BIOSS), occludin (1:1,000; cat. no. A2601; ABclonal Biotech Co., Ltd.), zona occludens-1 (ZO-1; 1:1,000; cat. no. A0659; ABclonal Biotech Co., Ltd.) and β-actin (1:1,000; cat. no. ab8227; Abcam). .. The membranes were washed with TBST three times for 10 min each and incubated with a horseradish peroxidase (HRP)-labeled secondary goat anti-rabbit (1:5,000; cat. no. ab6721; Abcam) antibodies for 1 h at room temperature.

    Article Title: Naringin ameliorates intestinal injury in ulcerative colitis model mice by modulating the JAK2/STAT3 signaling pathway
    Article Snippet: .. Membranes were subsequently incubated separately with primary antibodies for p-JAK2 (1:1,000; cat. no. bs-2485R; BIOSS), JAK2 (1:1,000; cat. no. bs-0908R; BIOSS), p-STAT3 (1:1,000; cat. no. bs-1658R; BIOSS), STAT3 (1:1,000; cat. no. bs-55208R; BIOSS), occludin (1:1,000; cat. no. A2601; ABclonal Biotech Co., Ltd.), ZO-1 (1:1,000; cat. no. A0659; ABclonal Biotech Co., Ltd.) and β-actin (1:1,000; cat. no. ab8227; Abcam), and then with HRP-conjugated goat anti-rabbit IgG secondary antibody (1:5,000; cat. no. ab6721; Abcam). .. Signals were detected by enhanced chemiluminescence (Thermo Fisher Scientific, Inc.).

    Article Title: Naringin ameliorates intestinal injury in ulcerative colitis model mice by modulating the JAK2/STAT3 signaling pathway.
    Article Snippet: ulcerative colitis (uc) is a chronic autoimmune disease characterized by mucosal inflammation and disrup‐ tion of the intestinal barrier.. Current therapies often produce adverse effects, underscoring the need for novel treatment options.. Naringin, a flavonoid from Citrus aurantium l., has shown anti‐inflammatory potential in inflammatory bowel disease.



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    Image Search Results


    Naringin inhibits JAK2/STAT3 signaling and restores tight junction proteins in dextran sulfate sodium-induced colitis. (A) Representative western blotting images of p-JAK2, JAK2, p-STAT3, STAT3, IL-6, occludin, ZO-1 and β-actin expression in colon tissues. Densitometric semi-quantification of the relative protein expression levels of (B) p-JAK2/β-actin, (C) JAK2/β-actin, (D) p-JAK2/JAK2, (E) p-STAT3/β-actin, (F) STAT3/β-actin, (G) p-STAT3/STAT3, (H) IL-6/β-actin, (I) occludin/β-actin and (J) ZO-1/β-actin. Data are presented as mean ± SEM. n=3. *P<0.05 and **P<0.01 vs. control group; # P<0.05 and ## P<0.01 vs. normal group. One-way ANOVA followed by Tukey's post-hoc test was applied. N, normal group; C, control group; Nar, naringin group; Mes, mesalazine group; p-, phosphorylated; JAK2, Janus kinase 2; STAT3, signal transducer and activator of transcription 3; IL-6, ZO-1, zona occludens-1.

    Journal: Molecular Medicine Reports

    Article Title: Naringin ameliorates intestinal injury in ulcerative colitis model mice by modulating the JAK2/STAT3 signaling pathway

    doi: 10.3892/mmr.2026.13805

    Figure Lengend Snippet: Naringin inhibits JAK2/STAT3 signaling and restores tight junction proteins in dextran sulfate sodium-induced colitis. (A) Representative western blotting images of p-JAK2, JAK2, p-STAT3, STAT3, IL-6, occludin, ZO-1 and β-actin expression in colon tissues. Densitometric semi-quantification of the relative protein expression levels of (B) p-JAK2/β-actin, (C) JAK2/β-actin, (D) p-JAK2/JAK2, (E) p-STAT3/β-actin, (F) STAT3/β-actin, (G) p-STAT3/STAT3, (H) IL-6/β-actin, (I) occludin/β-actin and (J) ZO-1/β-actin. Data are presented as mean ± SEM. n=3. *P<0.05 and **P<0.01 vs. control group; # P<0.05 and ## P<0.01 vs. normal group. One-way ANOVA followed by Tukey's post-hoc test was applied. N, normal group; C, control group; Nar, naringin group; Mes, mesalazine group; p-, phosphorylated; JAK2, Janus kinase 2; STAT3, signal transducer and activator of transcription 3; IL-6, ZO-1, zona occludens-1.

    Article Snippet: The membranes were blocked with 5% non-fat dry milk in Tris-buffered saline containing 0.1% Tween-20 (TBST) for 2 h at room temperature, then incubated at 4°C overnight with primary antibodies against IL-6 (1:1,000; cat. no. Bs-0782R; BIOSS), phosphorylated (p-)JAK2 (1:1,000; cat. no. bs-2485R; BIOSS), JAK2 (1:1,000; cat. no. bs-0908R; BIOSS), p-STAT3 (1:1,000; cat. no. bs-1658R; BIOSS), STAT3 (1:1,000; cat. no. bs-55208R; BIOSS), occludin (1:1,000; cat. no. A2601; ABclonal Biotech Co., Ltd.), zona occludens-1 (ZO-1; 1:1,000; cat. no. A0659; ABclonal Biotech Co., Ltd.) and β-actin (1:1,000; cat. no. ab8227; Abcam).

    Techniques: Western Blot, Expressing, Control

    Naringin reverses IL-6-induced ZO-1 and occludin impairment in a STAT3-dependent manner. (A) Immunofluorescence staining for ZO-1 (blue) and occludin (green); nuclei were stained with DAPI (cyan). Merged shows the merged images of DAPI and respective protein staining. Quantitative analysis of relative (B) ZO-1 and (C) occludin protein expression. (n=3). Data are presented as mean ± SEM. *P<0.05 and **P<0.01 vs. IL-6 group; ## P<0.01 vs. normal group. One-way ANOVA followed by Tukey's post-hoc test was applied. ZO-1, zona occludens-1; N, normal group; Nar, naringin; STAT3, signal transducer and activator of transcription 3; si, small interfering RNA; NC, negative control.

    Journal: Molecular Medicine Reports

    Article Title: Naringin ameliorates intestinal injury in ulcerative colitis model mice by modulating the JAK2/STAT3 signaling pathway

    doi: 10.3892/mmr.2026.13805

    Figure Lengend Snippet: Naringin reverses IL-6-induced ZO-1 and occludin impairment in a STAT3-dependent manner. (A) Immunofluorescence staining for ZO-1 (blue) and occludin (green); nuclei were stained with DAPI (cyan). Merged shows the merged images of DAPI and respective protein staining. Quantitative analysis of relative (B) ZO-1 and (C) occludin protein expression. (n=3). Data are presented as mean ± SEM. *P<0.05 and **P<0.01 vs. IL-6 group; ## P<0.01 vs. normal group. One-way ANOVA followed by Tukey's post-hoc test was applied. ZO-1, zona occludens-1; N, normal group; Nar, naringin; STAT3, signal transducer and activator of transcription 3; si, small interfering RNA; NC, negative control.

    Article Snippet: The membranes were blocked with 5% non-fat dry milk in Tris-buffered saline containing 0.1% Tween-20 (TBST) for 2 h at room temperature, then incubated at 4°C overnight with primary antibodies against IL-6 (1:1,000; cat. no. Bs-0782R; BIOSS), phosphorylated (p-)JAK2 (1:1,000; cat. no. bs-2485R; BIOSS), JAK2 (1:1,000; cat. no. bs-0908R; BIOSS), p-STAT3 (1:1,000; cat. no. bs-1658R; BIOSS), STAT3 (1:1,000; cat. no. bs-55208R; BIOSS), occludin (1:1,000; cat. no. A2601; ABclonal Biotech Co., Ltd.), zona occludens-1 (ZO-1; 1:1,000; cat. no. A0659; ABclonal Biotech Co., Ltd.) and β-actin (1:1,000; cat. no. ab8227; Abcam).

    Techniques: Immunofluorescence, Staining, Expressing, Small Interfering RNA, Negative Control

    Naringin suppresses JAK2/STAT3 activation in IL-6-stimulated Caco-2 cells with STAT3 silencing. (A) Western blot analysis of p-JAK2, JAK2, p-STAT3, STAT3, occludin and ZO-1 in Caco-2 cells under indicated treatments. (B) Validation of STAT3 knockdown efficiency: Relative STAT3 expression in cells transfected with siSTAT3 vs. siNC. ## P<0.01 vs. siNC. Densitometric semi-quantification of relative protein expression levels of (C) p-JAK2/β-actin, (D) JAK2/β-actin, (E) p-JAK2/JAK2, (F) p-STAT3/β-actin, (G) STAT3/β-actin, (H) p-STAT3/ STAT3, (I) occludin/β-actin, (J) ZO-1/β-actin. Data are presented as mean ± SEM. n=3. *P<0.05 and **P<0.01 vs. IL-6 group; ## P<0.01 vs. normal group; Δ P<0.05 and ΔΔ P<0.01 IL-6 + Nar group vs. IL-6 + Nar + siSTAT3 group. One-way ANOVA followed by Tukey's post-hoc test was applied. N, normal group; Nar, naringin group; Mes, mesalazine group; p-, phosphorylated; JAK2, Janus kinase 2; STAT3, signal transducer and activator of transcription 3; ZO-1, zona occludens-1; si, small interfering RNA; NC, negative control.

    Journal: Molecular Medicine Reports

    Article Title: Naringin ameliorates intestinal injury in ulcerative colitis model mice by modulating the JAK2/STAT3 signaling pathway

    doi: 10.3892/mmr.2026.13805

    Figure Lengend Snippet: Naringin suppresses JAK2/STAT3 activation in IL-6-stimulated Caco-2 cells with STAT3 silencing. (A) Western blot analysis of p-JAK2, JAK2, p-STAT3, STAT3, occludin and ZO-1 in Caco-2 cells under indicated treatments. (B) Validation of STAT3 knockdown efficiency: Relative STAT3 expression in cells transfected with siSTAT3 vs. siNC. ## P<0.01 vs. siNC. Densitometric semi-quantification of relative protein expression levels of (C) p-JAK2/β-actin, (D) JAK2/β-actin, (E) p-JAK2/JAK2, (F) p-STAT3/β-actin, (G) STAT3/β-actin, (H) p-STAT3/ STAT3, (I) occludin/β-actin, (J) ZO-1/β-actin. Data are presented as mean ± SEM. n=3. *P<0.05 and **P<0.01 vs. IL-6 group; ## P<0.01 vs. normal group; Δ P<0.05 and ΔΔ P<0.01 IL-6 + Nar group vs. IL-6 + Nar + siSTAT3 group. One-way ANOVA followed by Tukey's post-hoc test was applied. N, normal group; Nar, naringin group; Mes, mesalazine group; p-, phosphorylated; JAK2, Janus kinase 2; STAT3, signal transducer and activator of transcription 3; ZO-1, zona occludens-1; si, small interfering RNA; NC, negative control.

    Article Snippet: The membranes were blocked with 5% non-fat dry milk in Tris-buffered saline containing 0.1% Tween-20 (TBST) for 2 h at room temperature, then incubated at 4°C overnight with primary antibodies against IL-6 (1:1,000; cat. no. Bs-0782R; BIOSS), phosphorylated (p-)JAK2 (1:1,000; cat. no. bs-2485R; BIOSS), JAK2 (1:1,000; cat. no. bs-0908R; BIOSS), p-STAT3 (1:1,000; cat. no. bs-1658R; BIOSS), STAT3 (1:1,000; cat. no. bs-55208R; BIOSS), occludin (1:1,000; cat. no. A2601; ABclonal Biotech Co., Ltd.), zona occludens-1 (ZO-1; 1:1,000; cat. no. A0659; ABclonal Biotech Co., Ltd.) and β-actin (1:1,000; cat. no. ab8227; Abcam).

    Techniques: Activation Assay, Western Blot, Biomarker Discovery, Knockdown, Expressing, Transfection, Small Interfering RNA, Negative Control