HADC5 deacetylates MKL1 to dampen TNF-α induced pro-inflammatory gene transcription in macrophages.
HADC5 deacetylates MKL1 to dampen TNF-α induced pro-inflammatory gene transcription in macrophages.
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HADC5 使 MKL1 去乙酰化,抑制巨噬细胞中 TNF-α 诱导的促炎基因转录
DOI:
10.18632/oncotarget.21670
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发表时间:
2017-11-07
期刊:
影响因子:
--
通讯作者:
Xu Y
中科院分区:
文献类型:
--
作者:
Li Z;Qin H;Li J;Yu L;Yang Y;Xu Y
Macrophage-dependent inflammatory response on the one hand functions as a key line of defense in host immunity but on the other hand underlies the pathogenesis of a host of human pathologies when aberrantly activated. Our previous investigations have led to the identification of megakaryocytic leukemia 1 (MKL1) as a key co-factor of NF-κB/p65 participating in TNF-α induced pro-inflammatory transcription in macrophages. How post-translational modifications contribute to the modulation of MKL1 activity remains an underexplored subject matter. Here we report that the lysine deacetylase HDAC5 interacts with and deacetylates MKL1 in cells. TNF-α treatment down-regulates HDAC5 expression and expels HDAC5 from the promoters of pro-inflammatory genes in macrophages. In contrast, over-expression of HDAC5 attenuates TNF-α induced pro-inflammatory transcription. Mechanistically, HDAC5-mediated MKL1 deacetylation disrupts the interaction between MKL1 and p65. In addition, deacetylation of MKL1 by HDAC5 blocks its nuclear translocation in response to TNF-α treatment. In conclusion, our work has identified an important pathway that contributes to the regulation of pro-inflammatory response in macrophages.
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影响因子:
11.2
作者:
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通讯作者:
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1124/jpet.107.132167
发表时间:
2008-04-01
影响因子:
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作者:
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通讯作者:
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作者:
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通讯作者:
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影响因子:
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作者:
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通讯作者:
Trisciuoglio D