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Fig. 5 | Molecular Medicine

Fig. 5

From: MicroRNA-214 modulates the senescence of vascular smooth muscle cells in carotid artery stenosis

Fig. 5

MicroRNA-214-3p (miR-214) antagomiR in rat vascular smooth muscle cells (A7r5) induced angiogenesis and proliferation but suppressed senescence. a Schematic of the protocol for transfection of A7r5 VSMCs with a miRNA antagomiR control (antagomiR NC) or a miR-214 antagomiR and processed at the indicated times. b The effects of miR-214 antagomiR on VSMC cell proliferation were tested by CCK-8 assay. c Angiogenetic mRNA expression levels of NOS3, VEGFA, CXCL12 and CXCR4 compared in cells transfected with antagomiR NC or miR-214 antagomiRs (n = 3). d Senescence-associated mRNA expression of TERT, TERF1 and TERF2 compared in cells transfected with antagomiR NC or miR-214 antagomiRs (n = 3). e, G Representative western blots depicting TERF1, TERF2, p16INK4, p21CIP1, pRB, and quaking expression in antagomiR NC or miR-214 antagomiRs transfected cells. f, h Normalized expression of TERF1, TERF2, p16INK4, p21CIP1, pRB, and quaking (n = 3). i Senescence-associated β-galactosidase staining demonstrating senescence in SCR or miR-214 transfected cells. j Bar graphs show quantification of relative of SA-β-gal positive cells (n = 3). Data are presented as the means ± SEM. * P < 0.05; ** P < 0.01; ns, non-significance (Two-tailed Student’s t-test)

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