國家衛生研究院 NHRI:Item 3990099045/2185
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/2185


    Title: Epidermal growth factor (EGF) suppresses staurosporine-induced apoptosis by inducing mcl-1 via the mitogen-activated protein kinase pathway
    Authors: Leu, CM;Chang, CM;Hu, CP
    Contributors: Division of Molecular and Genomic Medicine
    Abstract: Overexpression of epidermal growth factor receptor (EGFR) and establishment of transforming growth factor alpha (TGF alpha)/EGF autocrine system are frequently detected in tumor cells. In addition to mitogenic ability, we demonstrate in this report that EGF protects a human esophageal carcinoma (CE) cell line, CE81T/VGH, from staurosporine-induced apoptosis, The anti-apoptotic signal of EGF is alleviated by a MEK inhibitor PK98059 or an ERK2 dominant negative mutant but not by a phosphatidylinositol-3'-kinase (PI-3K) inhibitor wortmannin, Furthermore, v-raf blocks apoptosis induced by staurosporine, This evidence implies that the survival signal of EGF is mediated via the Raf-MEK-ERK pathway but not the PI3-K pathway. The survival effect of EGF is coincident with the induction of mcl-1, an anti-apoptotic gene in the bcl-2 family. PD98059 also suppresses the induction of Mcl-1 by EGF, implying that EGF may up-regulate Mcl-1 via the MAP kinase pathway. Overexpression of mcl-1 is sufficient to protect against apoptosis, while transfection of a mcl-1 antisense plasmid causes cell death. The expression of mcl-1 antisense plasmid also suppresses the anti-apoptotic effect of EGF. Taken together, these results indicate that EGF may up-regulate Mcl-1 through the MAP kinase pathway to suppress apoptosis.
    Keywords: Biochemistry & Molecular Biology;Oncology;Cell Biology;Genetics & Heredity
    Date: 2000-03-23
    Relation: Oncogene. 2000 Mar;19(13):1665-1675.
    Link to: http://dx.doi.org/10.1038/sj.onc.1203452
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0950-9232&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000086083800006
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0034704939
    Appears in Collections:[Chung-Ming Chang] Periodical Articles

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