Journal: Experimental & molecular medicine
Article Title: SUMOylation of TP53INP1 is involved in miR-30a-5p-regulated heart senescence.
doi: 10.1038/s12276-024-01347-3
Figure Lengend Snippet: Fig. 2 miR-30a-5p KO aggravates the aging-induced decrease in cardiac function and promotes senescence. Representative ECG images (a) and analysis (b) of LVEF and LVFS in 2- and 18-month-old WT and KO mice (n = 7 in each group). Representative images of immunofluorescence staining (c) and analysis (d) of γH2AX in heart tissues of 2- and 18-month-old WT and KO mice (scale bars=200 μm; n = 3 in each group). e qRT‒PCR analysis of telomere length in heart tissues of 2- and 18-month-old WT and KO mice (n = 6 in each group). Representative western blotting images (f) and analysis (g) of the expression of p21 (n = 5 in each group) and p53 (n = 4 in each group) in the heart tissues of 2- and 18-month-old WT and KO mice. qRT‒PCR analysis of myocardial IL-1β (h, n = 5 in each group) and IL-6 (i, n = 4 in each group) levels. Representative Picrosirius Red (scale bars = 50 μm) and wheat germ agglutinin (WGA, scale bars = 100 μm) staining images (j) and analysis (k) of the hearts of 2- and 18-month-old WT and KO mice (n = 5 in each group). The data are presented as the means ± standard errors. Statistical significance was assessed using one-way ANOVA. ECG echocardiography, WT wild-type, KO knockout, LVEF left ventricular ejection fraction, LVFS left ventricular fractional shortening, qRT‒PCR quantitative real-time polymerase chain reaction, γH2AX H2A histone family member X, WGA wheat germ agglutinin.
Article Snippet: The primary antibodies used for western blotting were mouse monoclonal anti-p53 (Cat# Ab26, Abcam, Cambridge, UK), rabbit polyclonal anti-p21 (Cat# 8248-1-AP) and mouse monoclonal anti-TERF2 (Cat# 66893- 1-Ig, both ProteinTech, Wuhan, China), rabbit polyclonal anti-TP53INP1 (Cat# OM204116, OmniMabs, Alhambra, CA, USA), mouse monoclonal antiSUMO1 (Cat# sc-5308, Santa Cruz, Dallas, Texas, USA), rabbit polyclonal anti-TERT (Cat# DF7129), rabbit polyclonal anti-DDIT4 (Cat# 10638-1-AP, Proteintech, Wuhan, China), and rabbit polyclonal anti-SENP1 (Cat# AF0275, both Affinity Bioscience, Nanjing, China).
Techniques: Staining, Western Blot, Expressing, Knock-Out, Real-time Polymerase Chain Reaction