國家衛生研究院 NHRI:Item 3990099045/3566
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/3566


    Title: SH2B1Beta enhances fibroblast growth factor 1 (FGF1)-induced neurite outgrowth through MEK-ERK1/2-STAT3-Egr1 pathway
    Other Titles: SH2B1 beta enhances fibroblast growth factor 1 (FGF1)-induced neurite outgrowth through MEK-ERK1/2-STAT3-Egr1 pathway
    Authors: Lin, WF;Chen, CJ;Chang, YJ;Chen, SL;Chiu, IM;Chen, L
    Contributors: Institute of Cellular and Systems Medicine
    Abstract: Genetic studies have established the crucial roles of FGF signaling, FGF-induced gene expression and morphogenesis during embryogenesis. In this study, we showed that overexpressing a signaling adaptor protein, SH2B1β, enhanced FGF1-induced neurite outgrowth in PC12 cells. SH2B1β has previously been shown to promote nerve growth factor (NGF) and glial cell line-derived neurotrophic factor (GDNF)-induced neurite outgrowth, in part, through prolonging NGF and GDNF-induced signaling. To delineate how SH2B1β promotes FGF1-induced neurite outgrowth, we examined its role in FGF1-dependent signaling. Our data suggest that SH2B1β enhances and prolongs FGF1-induced MEK-ERK1/2 and PI3K-AKT pathways. We also provided the first evidence that FGF1 induces the phosphorylation of signal transducer and activator of transcription 3 (STAT3) at serine 727 [pSTAT3(S727)] in PC12 cells. SH2B1β enhances this phosphorylation and the expression of the immediate early gene, Egr1. Through inhibitor assays, we have further shown that MEK-ERK1/2 is required for FGF1-induced neurite outgrowth, pSTAT3(S727) and Egr1 expression. Moreover, inhibiting Rho kinase, ROCK, enhances FGF1-induced neurite outgrowth through pSTAT3(S727)-independent manner. Taken together, our results demonstrate, for the first time, that SH2B1β enhances FGF1-induced neurite outgrowth in PC12 cells mainly through MEK-ERK1/2-STAT3-Egr1 pathway.
    Date: 2009-07
    Relation: Cellular Signalling. 2009 Jul;21(7):1060-1072.
    Link to: http://dx.doi.org/10.1016/j.cellsig.2009.02.009
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0898-6568&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000266345300005
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=64849115616
    Appears in Collections:[Ing-Ming Chiu] Periodical Articles

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