DNA damage-mediated induction of a chemoresistant niche.
DNA damage-mediated induction of a chemoresistant niche.
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DOI:
10.1016/j.cell.2010.09.043
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发表时间:
2010-10-29
期刊:
影响因子:
64.5
通讯作者:
Hemann MT
中科院分区:
文献类型:
--
作者:
Gilbert LA;Hemann MT
While numerous cell-intrinsic processes are known to play decisive roles in chemotherapeutic response, relatively little is known about the impact of the tumor microenvironment on therapeutic outcome. Here, we use a well-established mouse model of Burkitt's lymphoma to show that paracrine factors in the tumor microenvironment modulate lymphoma cell survival following the administration of genotoxic chemotherapy. Specifically, IL-6 and Timp-1 are released in the thymus in response to DNA damage, creating a “chemo-resistant niche” that promotes the survival of a minimal residual tumor burden and serves as a reservoir for eventual tumor relapse. Notably, IL-6 is released acutely from thymic endothelial cells in a p38-dependent manner following genotoxic stress, and this acute secretory response precedes the gradual induction of senescence in tumor-associated stromal cells. Thus, conventional chemotherapies can induce tumor regression while simultaneously eliciting stress responses that protect subsets of tumor cells in select anatomical locations from drug action.
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DOI:
10.1073/pnas.92.20.9363
发表时间:
1995-09-26
影响因子:
11.1
作者:
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通讯作者:
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64.5
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通讯作者:
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DOI:
10.1056/nejmoa0804525
发表时间:
2008-11-06
期刊:
The New England journal of medicine
影响因子:
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