Guosong Jiang, Jun Zhao, Xingyuan Xiao, Dan Tao, Chaohui Gu, Qiangsong Tong, Binfeng Luo, Liang Wang, Fuqing Zeng
Department of Urology, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China.
Cancer letters 2011 Mar 1Although the anti-cancer agent methyl jasmonate (MJ) has been shown to selectively target malignant cells while sparing normal ones, hormone-refractory prostate cancer cells are relatively resistant to MJ than other cancer cells. In the present study, we investigated the effect of cell permeable seven-residue peptide of Smac (SmacN7), an antagonist of the inhibitor of apoptosis proteins (IAPs), on MJ-induced apoptosis. SmacN7 significantly enhanced the growth inhibition effect of MJ in human prostate cancer cells, but not in proximal tubular epithelial cells. Moreover, SmacN7 sensitizes MJ-induced apoptosis through both caspase-9-dependent and -independent pathways. Thus, blockade of the over-expressed IAPs in cancer cells could yield a potential therapeutic benefit in jasmonates-based chemotherapy. Copyright © 2010 Elsevier Ireland Ltd. All rights reserved.
Guosong Jiang, Jun Zhao, Xingyuan Xiao, Dan Tao, Chaohui Gu, Qiangsong Tong, Binfeng Luo, Liang Wang, Fuqing Zeng. AN N-terminal Smac peptide sensitizes human prostate carcinoma cells to methyl jasmonate-induced apoptosis. Cancer letters. 2011 Mar 1;302(1):37-46
PMID: 21237556
View Full Text