@article{APS4376,
author = {Tian-hua Zhang and Jian-feng Liu and Yao Zhang and Yong-li Li and Hai-tao Lu and Nobuo Murata and Tatsuo Yamakawa},
title = {Ceramide induces apoptosis in human lung adenocarcinoma A549 cells through mitogen-activated protein kinases},
journal = {Acta Pharmacologica Sinica},
volume = {28},
number = {3},
year = {2016},
keywords = {},
abstract = {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.},
issn = {1745-7254}, url = {http://www.chinaphar.com/article/view/4376}
}