The matricellular protein CCN1 induces fibroblast senescence and restricts fibrosis in cutaneous wound healing.
The matricellular protein CCN1 induces fibroblast senescence and restricts fibrosis in cutaneous wound healing.
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DOI:
10.1038/ncb2070
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发表时间:
2010-07
影响因子:
21.3
通讯作者:
Lau, Lester F.
中科院分区:
文献类型:
--
作者:
Jun, Joon-Il;Lau, Lester F.
Cellular senescence is a recognised mechanism of tumor suppression; however, its contribution to other pathologies is not well understood. We show that the matricellular protein CCN1/CYR61, which is dynamically expressed at sites of wound repair, can induce fibroblast senescence through its cell adhesion receptors, integrin α6β1 and heparan sulfate proteoglycans. CCN1 induces DNA damage response and p53 activation, and activates the RAC1-NOX1 complex to induce reactive oxygen species (ROS) generation and ROS-dependent activation of the p16INK4a/pRb pathway, leading to senescence and concomitant expression of antifibrotic genes. Senescent fibroblasts accumulate in granulation tissues of healing cutaneous wounds and express antifibrotic genes in wild type mice. These processes are obliterated in knockin mice that express a senescence-defective CCN1 mutant, resulting in exacerbated fibrosis. Topical application of CCN1 protein to wounds reverses these defects. Thus, fibroblast senescence is a CCN1-dependent wound healing response in cutaneous injury, functioning to curb fibrosis during tissue repair.
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影响因子:
4.8
作者:
Chen, CC;Mo, FE;Lau, LF
通讯作者:
Lau, LF
影响因子:
4.8
作者:
Chen, CC;Chen, NY;Lau, LF
通讯作者:
Lau, LF
影响因子:
7.7
作者:
Augert, Arnaud;Payre, Christine;Bernard, David
通讯作者:
Bernard, David
DOI:
10.1073/pnas.95.11.6355
发表时间:
1998-05-26
影响因子:
11.1
作者:
Babic, AM;Kireeva, ML;Lau, LF
通讯作者:
Lau, LF
DOI:
10.1158/1541-7786.mcr-09-0017
发表时间:
2009-07
期刊:
Molecular cancer research : MCR
影响因子:
--
作者:
Franzen CA;Chen CC;Todorović V;Juric V;Monzon RI;Lau LF
通讯作者:
Lau LF