Fig. 4
From: MicroRNA-214 modulates the senescence of vascular smooth muscle cells in carotid artery stenosis
MicroRNA-214-3p (miR-214) mimic in rat vascular smooth muscle cells (A7r5) suppressed angiogenesis and proliferation but promoted senescence. a Schematic of the protocol for transfection of A7r5 VSMCs with a miRNA mimic control (mimic NC) or a miR-214 mimic and processed at the indicated times. b The effects of miR-214 mimic on VSMC cell proliferation were tested by CCK-8 assay. c Angiogenetic mRNA expressions of NOS3, VEGFA, CXCL12 and CXCR4 compared in cells transfected with mimic NC or miR-214 mimic (n = 3). d Senescence-associated mRNA expressions of TERT, TERF1 and TERF2 compared in cells transfected with mimic NC or miR-214 mimic (n = 3). e,g Representative western blots depicting TERF1, TERF2, p16INK4, p21CIP1, pRB, and quaking expression in mimic NC or miR-214 mimic transfected cells. f,h Normalized expressions of TERF1, TERF2, p16INK4, p21CIP1, pRB, and quaking (n = 3). i Senescence-associated β-galactosidase staining demonstrating senescence in mimic NC or miR-214 mimic 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; *** P < 0.001 (Two-tailed Student’s t-test)