Journal: Experimental & molecular medicine

Article Title: Loss of KDM5B ameliorates pathological cardiac fibrosis and dysfunction by epigenetically enhancing ATF3 expression.

doi: 10.1038/s12276-022-00904-y

Figure Lengend Snippet: Fig. 2 KDM5B deficiency protects the heart from dysfunction and adverse cardiac remodeling after MI. a Echocardiographic measurement of the LVEF, LVFS, left ventricular end-diastolic internal dimension (LVIDd), and left ventricular end-systolic internal dimension (LVIDs) of KDM5B-KO or WT mice at baseline (Day 0) and on the indicated day after MI or sham operation (n = 6 mice per group). b–e Representative Masson’s trichrome staining images and quantitation of the scar size (b, c) or Sirius red staining images and quantitation of the fibrosis area (d, e) in myocardial tissues from KDM5B-KO or WT mice on Day 28 after MI. n = 6 mice per group. Scale bar, 1.6 mm (upper), 200 μm (bottom). f Q-PCR analysis of Col1a1 and Col3a1 mRNA levels in myocardial tissues from KDM5B-KO or WT mice on Day 14 after MI or sham operation (n = 6 mice per group). g Representative immunofluorescence staining of α-SMA (red) and Col III (green) in myocardial tissues from KDM5B-KO or WT mice on Day 14 after MI (n = 6 mice per group). Scale bar, 50 μm. *p < 0.05, **p < 0.01, ***p < 0.001. Unpaired Student’s t test (c, e) or ANOVA (a, f) was performed.

Article Snippet: Antibodies against collagen type III (NB600-594) were obtained from Novus Biologicals (Littleton, CO).

Techniques: Staining, Quantitation Assay

Journal: Experimental & molecular medicine

Article Title: Loss of KDM5B ameliorates pathological cardiac fibrosis and dysfunction by epigenetically enhancing ATF3 expression.

doi: 10.1038/s12276-022-00904-y

Figure Lengend Snippet: Fig. 3 KDM5B deficiency prevents pressure overload-induced cardiac dysfunction and cardiac fibrosis. a Representative echocardio- graphic M-mode images of left ventricles from KDM5B-KO or littermate control WT mice on Day 28 after AngII or normal saline (NS) infusion. b, c Echocardiographic measurement of the LVEF (b) and LVFS (c) of KDM5B-KO or WT mice on Day 28 after AngII or NS infusion (n = 6 mice per group). d, e The ratio of heart weight to body weight (HW/BW) (d) and the ratio of heart weight to tibia length (HW/TL) (e) of KDM5B-KO or WT mice on Day 28 after AngII or NS infusion (n = 6 mice per group). f–i Representative Masson’s trichrome images and quantitation of perivascular (f, g) or interstitial (h, i) fibrosis in myocardial tissues from KDM5B-KO or WT mice on Day 28 after AngII or NS infusion (n = 6 mice per group). Scale bar, 200 μm (left), 100 μm (right). j Q-PCR analysis of Acta2, Col1a1, Col3a1 and Ctgf mRNA expression levels in myocardial tissues from KDM5B-KO or WT mice on Day 28 after AngII or NS infusion (n = 6 mice per group). k Immunoblot analysis of Col I and Col III protein expression in myocardial tissues from KDM5B-KO or WT mice on Day 28 after AngII or NS infusion. l Representative immunofluorescence staining of α-SMA (red) and Col III (green) in myocardial tissues from KDM5B-KO or WT mice on Day 28 after AngII infusion. Scale bar, 50 μm. *p < 0.05, **p < 0.01. Unpaired Student’s t test (g, i) or one-way ANOVA (b–e, j) was performed.

Article Snippet: Antibodies against collagen type III (NB600-594) were obtained from Novus Biologicals (Littleton, CO).

Techniques: Control, Saline, Quantitation Assay, Expressing, Western Blot, Staining

Journal: Experimental & molecular medicine

Article Title: Loss of KDM5B ameliorates pathological cardiac fibrosis and dysfunction by epigenetically enhancing ATF3 expression.

doi: 10.1038/s12276-022-00904-y

Figure Lengend Snippet: Fig. 4 KDM5B promotes fibrotic responses and the transition of cardiac fibroblasts. a, b Q-PCR analysis of Col1a1, Col3a1, Fn1 and Ccn2 mRNA expression (a) (n = 6 per group) or immunoblot analysis of Col I and Col III protein expression (b) in KDM5B-deficient (KO) or littermate control WT cardiac fibroblasts stimulated with TGF-β (10 ng/ml) for 24 h. c, d Q-PCR analysis of Col1a1, Col3a1, Fn1 and Ccn2 mRNA expression (c) (n = 6 per group) or immunoblot analysis of Col I and Col III protein expression (d) in Kdm5b-silenced or control siRNA-transfected cardiac fibroblasts stimulated with TGF-β (10 ng/ml) for 24 h. e, f Q-PCR analysis of Col1a1, Col3a1, Fn1 and Ccn2 mRNA expression (e) (n = 6 per group) or immunoblot analysis of Col I and Col III protein expression (f) in cardiac fibroblasts treated with the KDM5B inhibitor GSK467 or DMSO followed by stimulation with TGF-β (10 ng/ml) for 24 h. g–i Representative immunofluorescence staining of α-SMA (red) in cardiac fibroblasts with KDM5B-deficiency (g), KDM5B knockdown (h) or GSK467 treatment (i) and the corresponding control cardiac fibroblasts (g–i) stimulated with TGF-β (10 ng/ml) for 24 h. Similar results were obtained from three independent experiments (g–i). Scale bar, 50 μm. *p < 0.05, **p < 0.01, ***p < 0.001. Unpaired Student’s t test (a, c, e) was performed.

Article Snippet: Antibodies against collagen type III (NB600-594) were obtained from Novus Biologicals (Littleton, CO).

Techniques: Expressing, Western Blot, Control, Transfection, Staining, Knockdown

Journal: Breast Cancer Research : BCR

Article Title: STAT5 is activated in macrophages by breast cancer cell-derived factors and regulates macrophage function in the tumor microenvironment

doi: 10.1186/s13058-021-01481-0

Figure Lengend Snippet: Tumor cell-derived GM-CSF activates STAT5 in macrophages. A qRT-PCR analysis for GM-CSF in TNBC (Hs578T and MDA-MB-231), ER + (MCF7) and HER2 + (BT-474) human breast cancer cells relative to expression in MCF-10A cells. B ELISA analysis for GM-CSF in CM collected from MCF-10A, MDA-MB-231, Hs578T, MCF7, and BT-474 cells. C ELISA analysis for GM-CSF in CM collected from 4T1 cells and B/B-stimulated HC11, HC11/R1, and HC11/R1-LM cells relative to EtOH controls. D Immunoblot analysis for pSTAT5, TSTAT5, and β-tubulin in BMDMs treated with No CM, tumor CM (4T1 or HC11/R1 BB), or tumor CM incubated for 1 h at 37 °C with 2.5 µg/mL neutralizing GM-CSF antibody (⍺GM-CSF Ab)

Article Snippet: STAT5 fl/fl DCM and STAT5 cKO DCM was subjected to mouse Type I Collagen ELISA (Novus Biologicals).

Techniques: Derivative Assay, Quantitative RT-PCR, Expressing, Enzyme-linked Immunosorbent Assay, Western Blot, Incubation

Journal: Breast Cancer Research : BCR

Article Title: STAT5 is activated in macrophages by breast cancer cell-derived factors and regulates macrophage function in the tumor microenvironment

doi: 10.1186/s13058-021-01481-0

Figure Lengend Snippet: STAT5 deletion in macrophages enhances tumor-promoting phenotype and impacts tumor cell migration and metastasis. A qRT-PCR analysis of genes of interest from RNA-seq associated with tumor-promoting pathways in rmGM-CSF or 4T1 CM-treated STAT5 fl/fl (blue) and STAT5 cKO (red) BMDMs. Unpaired t-test was used for statistical analysis. B Mouse Type 1 Collagen ELISA in STAT5 fl/fl unstimulated or 4T1 CM-stimulated STAT5 fl/fl and STAT5 cKO macrophage double CM (DCM). Data were analyzed using one-way ANOVA and Tukey’s multiple comparison test. C Representative immunoblot of pFAK, total FAK (FAK), and β-tubulin in 4T1 cells cultured alone or co-cultured with STAT5 fl/fl or STAT5 cKO BMDMs for 4 h. Densitometry analysis relative to loading control. D Migration analysis of 4T1 cells cultured alone or co-cultured with STAT5 fl/fl or STAT5 cKO BMDMs after 20 h. Cell counts relative to 4T1 alone in triplicate. E Kaplan–Meier curves of 4T1 cells co-injected with either STAT5 fl/fl (n = 8) or STAT5 cKO (n = 7) BMDMs in WT BALB/c mice. % Survival on Y-axes indicates proportion of mice reaching tumor size endpoint of 1cm 3 . F Quantified metastasis in H&E-stained lung sections. Lungs were sectioned at 3 different depths per mouse and analyzed for percent metastatic area per tissue section. *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001. Scale bar: 50 μm

Article Snippet: STAT5 fl/fl DCM and STAT5 cKO DCM was subjected to mouse Type I Collagen ELISA (Novus Biologicals).

Techniques: Migration, Quantitative RT-PCR, RNA Sequencing, Enzyme-linked Immunosorbent Assay, Comparison, Western Blot, Cell Culture, Control, Injection, Staining