title: Lineage-Specific and Non-specific Cytokine-Sensing Genes Respond Differentially to the Master Regulator STAT5.
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.
authors.affiliation: Laboratory of Genetics and Physiology, National Institute of Diabetes, Digestive and Kidney Diseases, NIH, Bethesda, MD 20892, USA.
authors.forename: Xianke
authors.initials: X
authors.lastname: Zeng
authors.affiliation: Laboratory of Genetics and Physiology, National Institute of Diabetes, Digestive and Kidney Diseases, NIH, Bethesda, MD 20892, USA; Division of Bioinformatics, Biocenter, Medical University of Innsbruck, 6020 Innsbruck, Austria.
authors.forename: Michaela
authors.initials: M
authors.lastname: Willi
authors.affiliation: Laboratory of Genetics and Physiology, National Institute of Diabetes, Digestive and Kidney Diseases, NIH, Bethesda, MD 20892, USA.
authors.forename: Ha Youn
authors.initials: HY
authors.lastname: Shin
authors.affiliation: Laboratory of Genetics and Physiology, National Institute of Diabetes, Digestive and Kidney Diseases, NIH, Bethesda, MD 20892, USA. Electronic address: lotharh@mail.nih.gov.
authors.forename: Lothar
authors.initials: L
authors.lastname: Hennighausen
authors.affiliation: Laboratory of Genetics and Physiology, National Institute of Diabetes, Digestive and Kidney Diseases, NIH, Bethesda, MD 20892, USA. Electronic address: wangcn@mail.nih.gov.
authors.forename: Chaochen
authors.initials: C
authors.lastname: Wang
mesh_terms: D016475:3T3 Cells; D000818:Animals; D001665:Binding Sites; D019070:Cell Lineage / Q000235:genetics; D016207:Cytokines / Q000235:genetics* / Q000378:metabolism; D004268:DNA-Binding Proteins / Q000235:genetics* / Q000378:metabolism; D004742:Enhancer Elements, Genetic; D005786:Gene Expression Regulation; D051379:Mice; D011401:Promoter Regions, Genetic; D011485:Protein Binding; D050799:STAT5 Transcription Factor / Q000235:genetics* / Q000378:metabolism; D050826:Suppressor of Cytokine Signaling Proteins / Q000235:genetics* / Q000378:metabolism; D013601:T-Lymphocytes / Q000378:metabolism; D015534:Trans-Activators / Q000235:genetics; D014158:Transcription, Genetic
chemical_list: D016207:Cytokines; D004268:DNA-Binding Proteins; D050799:STAT5 Transcription Factor; C491409:Socs2 protein, mouse; D050826:Suppressor of Cytokine Signaling Proteins; D015534:Trans-Activators
keywords: SOCS2; STAT5; cytokine; enhancer; mammary gland; promoter