Abstract：
:STAT5, a member of the family of signal transducers and activators of transcription, senses cytokines and controls the biology of cell lineages, including mammary, liver, and T cells. Here, we show that STAT5 activates lineage-specific and widely expressed genes through different mechanisms. STAT5 preferentially binds to promoter sequences of cytokine-responsive genes expressed across cell types and to putative enhancers of lineage-specific genes. While chromatin accessibility of STAT5-based enhancers was dependent on cytokine exposure, STAT5-responsive promoters of widely expressed target genes were generally constitutively accessible. While the contribution of STAT5 to enhancers is well established, its role on promoters is poorly understood. To address this, we focused on Socs2, a widely expressed cytokine-sensing gene. Upon deletion of the STAT5 response elements from the Socs2 promoter in mice, cytokine induction was abrogated, while basal activity remained intact. Our data suggest that promoter-bound STAT5 modulates cytokine responses and enhancer-bound STAT5 is mandatory for gene activation.
journal_name
Cell Repjournal_title
Cell reportsauthors
Zeng X,Willi M,Shin HY,Hennighausen L,Wang Cdoi
10.1016/j.celrep.2016.11.079subject
Has Abstractpub_date
2016-12-20 00:00:00pages
3333-3346issue
12issn
2211-1247pii
S2211-1247(16)31653-9journal_volume
17pub_type
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