JNK signaling pathway is involved in piperlongumine-mediated apoptosis in human colorectal cancer HCT116 cells

被引:29
作者
Li, Wen [1 ,2 ,3 ,4 ,5 ]
Wen, Chuangyu [1 ,2 ,3 ,4 ]
Bai, Haiyan [6 ]
Wang, Xiaoyan [1 ,2 ,3 ,4 ]
Zhang, Xiaoli [1 ,2 ]
Huang, Lanlan [1 ,2 ,3 ,4 ]
Yang, Xiangling [1 ,2 ,3 ,4 ]
Iwamoto, Aikichi [7 ]
Liu, Huanliang [1 ,2 ,3 ,4 ]
机构
[1] Sun Yat Sen Univ, Guangdong Inst Gastroenterol, Guangzhou 510655, Guangdong, Peoples R China
[2] Sun Yat Sen Univ, Affiliated Hosp 6, Guangzhou 510655, Guangdong, Peoples R China
[3] Sun Yat Sen Univ, Guangdong Prov Key Lab Colorectal & Pelv Floor Di, Guangzhou 510655, Guangdong, Peoples R China
[4] Sun Yat Sen Univ, Inst Human Virol, Guangzhou 510080, Guangdong, Peoples R China
[5] Guangzhou Med Univ, Guangdong Prov Key Lab Allergy & Immunol, Guangzhou 511436, Guangdong, Peoples R China
[6] Sun Yat Sen Univ, Ctr Canc, State Key Lab Oncol South China, Guangzhou 510080, Guangdong, Peoples R China
[7] Univ Tokyo, Inst Med Sci, Adv Clin Res Ctr, Tokyo 1088639, Japan
关键词
piperlongumine; colorectal cancer; c-Jun NH2-terminal kinases; apoptosis; phosphorylation; SP600125; C-JUN; INHIBITS PROLIFERATION; ERK; PHOSPHORYLATION; ACTIVATION; INDUCTION; STRESS; DEATH;
D O I
10.3892/ol.2015.3371
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Piperlongumine (PPLGM), an alkaloid isolated from the long pepper (Piper longum L.), can selectively trigger cancer cell death in colorectal cancer cells. The present study investigated whether the c-Jun NH2-terminal kinase (JNK) signaling pathway is involved in PPLGM-induced apoptosis in the human colorectal cancer HCT116 cell line. The results demonstrated that PPLGM reduced the cell viability and induced cell apoptosis in a time- and concentration-dependent manner, without a significant effect on cell cycle distribution. Meanwhile, treatment with 10 mu M PPLGM resulted in JNK activation within 1 h, and a marked and sustained increase in c-Jun phosphorylation in the HCT116 cells. In addition, SP600125, a general inhibitor of JNK, inhibited PPIGM-induced apoptosis in the HCTH6 cells by inhibiting PPI,GM-induced c-Jun phosphorylation. Altogether, it can be concluded that the.INK signaling pathway, at least in part, is involved in PPLGM-mediated apoptosis in HCI116 cells.
引用
收藏
页码:709 / 715
页数:7
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