Aim: To provide experimental data for further research on the signal transduction of apoptosis in lung adenocarcinoma cells, we examined the effects of exogenous C2-ceramide administration on several members of the mitogen-activated protein kinase (MAPK) superfamily and caspase-3 in A549 cells. Methods: Cell viability and apoptosis were analyzed by cell counting kit-8 assay and flow cytometry. Various MAPK and caspase-3 proteins were detected by Western blotting. Results: C2-ceramide selectively altered the phosphorylation state of members of the MAPK superfamily, causing hyperphosphorylation of mitogen-activated protein kinase kinase (MEK) 1/2 and the p38 MAPK, but not affecting the phosphorylation of extracellular signal-regulated kinase 1/2 and the c-Jun N-terminal kinase. SB-203580 (a p38 MAPK inhibitor) and p38 siRNA, but not U0126 (a MEK inhibitor), partially rescued cell death induced by C2-ceramide. C2-ceramide promoted the activation of caspase-3. Conclusion: Exogenous C2-ceramide induced apoptosis in human lung adenocarcinoma A549 cells. The activation of MAPK and caspase-3 were involved in the mechanisms of C2-ceramide-induced apoptosis in A549 cells.
Zhang Tian-hua,Liu Jian-feng,Zhang Yao,et al.Ceramide induces apoptosis in human lung adenocarcinoma A549 cells through mitogen-activated protein kinases[J].ACTA PHARMACOLOGICA SINICA.2007,28(3):439-445.doi:10.1111/j.1745-7254.2007.00505.x.
APA：
Zhang, Tian-hua,Liu, Jian-feng,Zhang, Yao,Li, Yong-li,Li, Li...&Yamakawa, Tatsuo.(2007).Ceramide induces apoptosis in human lung adenocarcinoma A549 cells through mitogen-activated protein kinases.ACTA PHARMACOLOGICA SINICA,28,(3)
MLA：
Zhang, Tian-hua,et al."Ceramide induces apoptosis in human lung adenocarcinoma A549 cells through mitogen-activated protein kinases".ACTA PHARMACOLOGICA SINICA 28..3(2007):439-445
