國家衛生研究院 NHRI:Item 3990099045/7837
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/7837


    Title: SH2B1Beta interacts with STAT3 and enhances fibroblast growth factor 1-induced gene expression during neuronal differentiation
    Other Titles: SH2B1β interacts with STAT3 and enhances fibroblast growth factor 1-induced gene expression during neuronal differentiation
    Authors: Chang, YJ;Chen, KW;Chen, CJ;Lin, MH;Sun, YJ;Lee, JL;Chiu, IM;Chen, L
    Contributors: Institute of Cellular and Systems Medicine
    Abstract: Neurite outgrowth is an essential process during neuronal differentiation as well as neuro-regeneration. Thus, understanding the molecular and cellular control of neurite outgrowth will benefit patients with neurological diseases. We have previously shown that overexpression of the signaling adaptor protein SH2B1β promotes fibroblast growth factor 1 (FGF1)-induced neurite outgrowth. SH2B1β also undergoes nucleocytoplasmic shuttling and regulates a subset of neurotrophin-induced genes. Although these findings suggest that SH2B1β may regulate gene expression, the nuclear role of SH2B1β was not known. In this study, we show that SH2B1β interacts with the transcription factor, signal transducer and activator of transcription 3 (STAT3) in neuronal PC12 cells, cortical neurons, and COS7 fibroblasts. By affecting the sub-cellular distribution of STAT3, SH2B1β increased serine phosphorylation and the concomitant transcriptional activity of STAT3. As a result, overexpressing SH2B1β enhanced FGF1-induced expression of STAT3 target genes Egr1 and Cdh2. Chromatin immunoprecipitation assays further reveal that, in response to FGF1, overexpression of SH2B1β promotes the in vivo occupancy of STAT3-Sp1 heterodimers at the promoter of Egr1 and Cdh2. These findings establish a central role of SH2B1β in orchestrating signaling events to transcriptional activation through interacting and regulating STAT3-containing complexes during neuronal differentiation.
    Date: 2014-03
    Relation: Molecular and Cellular Biology. 2014 Mar;34(6):1003-1019.
    Link to: http://dx.doi.org/10.1128/mcb.00940-13
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0270-7306&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000331995800008
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84894282317
    Appears in Collections:[Ing-Ming Chiu] Periodical Articles

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