Abstract
To explore the roles and mechanisms of E2F-1 and PAC1 in signaling apoptosis of Saos-2 cells under oxidative stress. siRNAs were used to construct the cell clones of expressing siE2F-1 and siPAC1. E2F-1/PAC1-mediated induction of apoptotic cell death in response to H2O2 were examined by trypan blue exclusion and the expression levels of related target factors detected by Western blot. The cell viabilities of Saos-2/siE2F-1 and Saos-2/siPAC1 increased markedly comparing with the control cells after the treatment of H2O2. And the expression level of p-ERK1/2 was higher than that of the control cells. The pathway of E2F-1/PAC1/MAPKase is a specific cascade for apoptotic signaling.
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