STAT6 transcription factor is a facilitator of the nuclear receptor PPARγ-regulated gene expression in macrophages and dendritic cells.
STAT6 transcription factor is a facilitator of the nuclear receptor PPARγ-regulated gene expression in macrophages and dendritic cells.
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DOI:
10.1016/j.immuni.2010.11.009
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发表时间:
2010-11-24
期刊:
影响因子:
32.4
通讯作者:
Nagy L
中科院分区:
文献类型:
--
作者:
Szanto A;Balint BL;Nagy ZS;Barta E;Dezso B;Pap A;Szeles L;Poliska S;Oros M;Evans RM;Barak Y;Schwabe J;Nagy L
Peroxisome proliferator-activated receptor γ (PPARγ) is a lipid-activated transcription factor regulating lipid metabolism and inflammatory response in macrophages and dendritic cells (DCs). These immune cells exposed to distinct inflammatory milieu show cell type specification as a result of altered gene expression. We demonstrate here a mechanism how inflammatory molecules modulate PPARγ signaling in distinct subsets of cells. Proinflammatory molecules inhibited whereas interleukin-4 (IL-4) stimulated PPARγ activity in macrophages and DCs. Furthermore, IL-4 signaling augmented PPARγ activity through an interaction between PPARγ and signal transducer and activators of transcription 6 (STAT6) on promoters of PPARγ target genes, including FABP4. Thus, STAT6 acts as a facilitating factor for PPARγ by promoting DNA binding and consequently increasing the number of regulated genes and the magnitude of responses. This interaction, underpinning cell type-specific responses, represents a unique way of controlling nuclear receptor signaling by inflammatory molecules in immune cells. ► Proinflammatory cytokines inhibit and IL-4 stimulates PPARγ activity in macrophages ► IL-4 acts as an upstream regulator of PPARγ signaling via STAT6 ► STAT6 and PPARγ bind to target gene promoters together and physically interact ► STAT6 promotes PPARγ binding and facilitates its transcriptional activity
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影响因子:
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作者:
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通讯作者:
Figdor, CG
影响因子:
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Evans, RM
DOI:
10.1073/pnas.2536828100
发表时间:
2003-12-23
影响因子:
11.1
作者:
He, WM;Barak, Y;Evans, RM
通讯作者:
Evans, RM