DNA damage triggers a chronic autoinflammatory response, leading to fat depletion in NER progeria.
DNA damage triggers a chronic autoinflammatory response, leading to fat depletion in NER progeria.
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DOI:
10.1016/j.cmet.2013.08.011
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发表时间:
2013-09-03
期刊:
影响因子:
29
通讯作者:
Garinis GA
中科院分区:
文献类型:
--
作者:
Karakasilioti I;Kamileri I;Chatzinikolaou G;Kosteas T;Vergadi E;Robinson AR;Tsamardinos I;Rozgaja TA;Siakouli S;Tsatsanis C;Niedernhofer LJ;Garinis GA
Lipodystrophies represent a group of heterogeneous disorders characterized by loss of fat tissue. However, the underlying mechanisms remain poorly understood. Using mice carrying an ERCC1-XPF DNA repair defect systematically or in adipocytes, we show that DNA damage signaling triggers a chronic auto-inflammatory response leading to fat depletion. Ercc1−/− and aP2-Ercc1f/− fat depots show extensive gene expression similarities to lipodystrophic Pparγldi/+ animals along with focal areas of ruptured basement membrane, the reappearance of primary cilia, necrosis, fibrosis and a marked decrease in adiposity. We find that persistent DNA damage in aP2-Ercc1f/− fat depots and in adipocytes ex vivo trigger the induction of pro-inflammatory factors by promoting transcriptionally active histone marks and the dissociation of nuclear receptor co-repressor complexes from promoters; the response is cell-autonomous and requires ATM. Thus, persistent DNA damage-driven auto-inflammation plays a causative role in adipose tissue degeneration with important ramifications for progressive lipodystrophies and natural aging.
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DOI:
10.1073/pnas.1114941109
发表时间:
2012-02-21
影响因子:
11.1
作者:
Kamileri, Irene;Karakasilioti, Ismene;Garinis, George A.
通讯作者:
Garinis, George A.
DOI:
10.1007/978-1-4614-1680-7_9
发表时间:
2012-01-01
期刊:
SELF AND NONSELF
影响因子:
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通讯作者:
Yamasaki, Sho
DOI:
10.1073/pnas.0707797104
发表时间:
2007-10-16
影响因子:
11.1
作者:
Kim, Suyeon;Huang, Li-Wen;Barak, Yaacov
通讯作者:
Barak, Yaacov
影响因子:
21.3
作者:
Rodier, Francis;Coppe, Jean-Philippe;Patil, Christopher K.;Hoeijmakers, Wieteke A. M.;Munoz, Denise P.;Raza, Saba R.;Freund, Adam;Campeau, Eric;Davalos, Albert R.;Campisi, Judith
通讯作者:
Campisi, Judith
DOI:
10.1073/pnas.0306743102
发表时间:
2005-04-26
影响因子:
11.1
作者:
Jones, JR;Barrick, C;Magnuson, MA
通讯作者:
Magnuson, MA