Triptolide inhibits Jak2 transcription and induces apoptosis in human myeloproliferative disorder cells bearing Jak2V617F through caspase-3-mediated cleavage of Mcl-1

被引：22

作者：

Chen, Qi ^{[1
]}

Lu, Zhongzheng ^{[1
]}

Jin, Yanli ^{[1
]}

Wu, Yongbin ^{[1
]}

Pan, Jingxuan ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Dept Pathophysiol, Zhongshan Sch Med, Guangzhou 510089, Guangdong, Peoples R China

来源：

CANCER LETTERS | 2010年 / 291卷 / 02期

基金：

国家高技术研究发展计划(863计划);

关键词：

MPD; Jak2; V617F mutation; Triptolide; Apoptosis; CHRONIC MYELOGENOUS LEUKEMIA; TRIPTERYGIUM-WILFORDII HOOK; TYROSINE KINASE INHIBITOR; POLYCYTHEMIA-VERA; HEMATOPOIETIC-CELLS; ONCOGENE ADDICTION; DOWN-REGULATION; CANCER CELLS; MAST-CELLS; MUTATION;

D O I：

10.1016/j.canlet.2009.10.019

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 [肿瘤学];

摘要：

The discovery of oncogene addiction in myeloproliferative disorders (MPDs) driven by the gain-of-function mutant Jak2V617F has attracted intense interest in targeted therapy for MPDs. In this report, we demonstrate that triptolide potently downregulated the transcription of Jak2 by inhibiting the activity of RNA polymerase. Triptolide inhibited the in vitro and in vivo growth of tumor cells harboring Jak2V617F. Triptolide induced abundant apoptosis with a prominent decline of Bcl-2. Bcl-X-L, survivin and Mcl-1. As well, triptolide induced caspase-3-dependent Mcl-1 cleavage, which may potentiate apoptosis. These findings suggest that triptolide is a promising agent to kill Jak2V617F-harboring cells. (C) 2009 Elsevier Ireland Ltd. All rights reserved.

引用

页码：246 / 255

页数：10

共 44 条

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