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Fig. 4 | Molecular Cancer

Fig. 4

From: Circular RNA MAPK4 (circ-MAPK4) inhibits cell apoptosis via MAPK signaling pathway by sponging miR-125a-3p in gliomas

Fig. 4

Inhibition of phosphorylation of p38/MAPK reverses cell survival induced by circ-MAPK4. (a) U373 cells transfected with siRNA negative control, circ-MAPK4 siRNA-1 and siRNA-2 were treated with or without p-p38/MAPK inhibitor (SB203580). Inhibition efficiency of p-p38/MAPK inhibitor was accessed by testing phosphorylation and total protein levels of p38/MAPK and ERK using western blot assays. (b, c) CCK-8 and colony formation assays were performed to reveal cell survival of these U373 cells. (d) Apoptosis assays were performed to reveal apoptosis levels of these U373 cells. (e) The western blot assays were used to evaluate effect of p-p38/MAPK inhibitor on protein expression levels of cleaved form of caspase-9, caspase-7, caspase-3, PARP1 in these U373 cells. The data were summarized as bar graph. Data are the means ± SEM of three experiments. *P < 0.05; **P < 0.01; ***P < 0.001

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