Caspase 3-mediated stimulation of tumor cell repopulation during cancer radiotherapy.
Caspase 3-mediated stimulation of tumor cell repopulation during cancer radiotherapy.
复制标题
Caspase 3 介导的癌症放射治疗过程中肿瘤细胞增殖的刺激。
作者:
In cancer treatment, apoptosis is a well-recognized cell death mechanism through which cytotoxic agents kill tumor cells. Here we report that dying tumor cells use the apoptotic process to generate potent growth-stimulating signals to stimulate the repopulation of tumors undergoing radiotherapy. Surprisingly, activated caspase 3, a key executioner of apoptosis, plays key roles in the growth stimulation. One downstream effector that caspase 3 regulates is prostaglandin E2, which can potently stimulates growth of surviving tumor cells. Deficiency of caspase 3 either in tumor cells or in tumor stroma caused significant tumor sensitivity to radiotherapy in xenograft or mouse tumors. In human cancer patients, higher levels of activated caspase 3 in tumor tissues are correlated with significantly increased rate of recurrence and deaths. We propose the existence of a “Phoenix Rising” pathway of cell death-induced tumor repopulation in which caspase 3 plays key roles.
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影响因子:
23.9
作者:
Li, Fang;He, Zhimin;Shen, Jingping;Huang, Qian;Li, Wenrong;Liu, Xinjian;He, Yujun;Wolf, Frank;Li, Chuan-Yuan
通讯作者:
Li, Chuan-Yuan
影响因子:
7.3
作者:
Li F;Huang Q;Chen J;Peng Y;Roop DR;Bedford JS;Li CY
通讯作者:
Li CY
影响因子:
50.3
作者:
Ahn, G-One;Brown, J. Martin
通讯作者:
Brown, J. Martin
影响因子:
11.8
作者:
Fan, Yun;Bergmann, Andreas
通讯作者:
Bergmann, Andreas
影响因子:
8.8
作者:
Stephens, T C;Currie, G A;Peacock, J H
通讯作者:
Peacock, J H