Archives of Toxicology

, Volume 80, Issue 6, pp 310–318

Mitogen-activated protein kinases mediate arsenic-induced down-regulation of survivin in human lung adenocarcinoma cells

Authors

  • YaHsin Cheng
    • Division of Environmental Health and Occupational MedicineNational Health Research Institutes
  • Louis W. Chang
    • Division of Environmental Health and Occupational MedicineNational Health Research Institutes
    • Division of Environmental Health and Occupational MedicineNational Health Research Institutes
Molecular Toxicology

DOI: 10.1007/s00204-005-0045-1

Cite this article as:
Cheng, Y., Chang, L.W. & Tsou, T. Arch Toxicol (2006) 80: 310. doi:10.1007/s00204-005-0045-1

Abstract

Survivin is a member of the inhibitors of apoptosis protein (IAP) family and is highly expressed in various cancer cells. However, the molecular mechanisms regulating survivin expression remain unclear. In this study, we investigated the role of mitogen-activated protein kinases (MAPKs) in regulating survivin in the human lung adenocarcinoma cell line H1355 in response to arsenic trioxide (As(3+)). Our data indicated that As(3+) induced cytotoxicity accompanied by down-regulation of survivin, cleavage of Poly ADP-ribosyl polymerase (PARP) and activations of MAPKs, including ERK1/2, p38 and c-jun N-terminal kinase (JNK). We found that blockage of p38 or JNK activation attenuated the As(3+)-induced survivin down-regulation and PARP cleavage with significant reversal of cell viability, however, by only 5–8%. On the other hand, the MEK inhibitor PD098059 or the ubiquitin-proteasome inhibitor MG-132 exhibited little effect on survivin down-regulation and PARP cleavage induced by As(3+). In this study, we demonstrated that As(3+) could down-regulate survivin via activations of p38 and JNK in an ubiquitin-proteasome independent pathway and lead to cytotoxicity and apoptosis in the human lung adenocarcinoma cell line H1355.

Keywords

ArsenicHuman lung adenocarcinomaSurvivinp38c-jun N-terminal kinase

Copyright information

© Springer-Verlag 2005