A long noncoding RNA mediates both activation and repression of immune response genes.

A long noncoding RNA mediates both activation and repression of immune response genes.
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DOI:
10.1126/science.1240925
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发表时间:
2013-08-16
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Fitzgerald KA
Fitzgerald KA
中科院分区:
其他
文献类型:
--
作者:
Carpenter S;Aiello D;Atianand MK;Ricci EP;Gandhi P;Hall LL;Byron M;Monks B;Henry-Bezy M;Lawrence JB;O'Neill LA;Moore MJ;Caffrey DR;Fitzgerald KA

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An inducible program of inflammatory gene expression is central to anti-microbial defenses. Signal-dependent activation of transcription factors, transcriptional co-regulators and chromatin modifying factors collaborate to control this response. Here we identify a long noncoding RNA that acts as a key regulator of this inflammatory response. Germline-encoded receptors such as the Toll-like receptors induce the expression of numerous lncRNAs. One of these, lincRNA-Cox2 mediates both the activation and repression of distinct classes of immune genes. Transcriptional repression of target genes is dependent on interactions of lincRNA-Cox2 with heterogeneous nuclear ribonucleoprotein A/B and A2/B1. Collectively, these studies unveil a central role of lincRNA-Cox2 as a broad acting regulatory component of the circuit that controls the inflammatory response.
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