國家衛生研究院 NHRI:Item 3990099045/4931
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    題名: Involvement of aryl hydrocarbon receptor nuclear translocator in EGF-induced c-Jun/Sp1-mediated gene expression
    作者: Huang, WC;Chen, ST;Chang, WC;Chang, KY;Chen, BK
    貢獻者: National Institute of Cancer Research
    摘要: Aryl hydrocarbon receptor nuclear translocator (ARNT) binds to other basic helix-loop-helix Per/ARNT/Sim (bHLH-PAS) proteins to form functional transcriptional complexes in order to regulate specific biological pathways. Here, we report a novel mechanism that upon EGF treatment, ARNT associated with non-bHLH-PAS transcription factors, c-Jun/Sp1, and regulated gene expression, through forming a c-Jun/ARNT/Sp1 complex and binding to the Sp1 site of the gene promoter. EGF-induced promoter activity and the mRNA level of 12(S)-lipoxygenase as well as the association between c-Jun and Sp1 were reduced by ARNT knockdown. Notably, dominant negative c-Jun mutant, TAM-67, blocked ARNT-mediated 12(S)-lipoxygenase expression, demonstrating that c-Jun was responsible for the transcriptional activation. Moreover, ARNT knockdown also inhibited other EGF-induced c-Jun/Sp1 mediated gene expression, such as p21WAF1/CIP1. Our results reveal a novel mechanism by which ARNT acts as a modulator to bridge the c-Jun/Sp1 interaction and plays a role in EGF-mediated gene expression under normoxic conditions.
    日期: 2010-10
    關聯: Cellular and Molecular Life Sciences. 2010 Oct;37(20):3523-3533.
    Link to: http://dx.doi.org/10.1007/s00018-010-0392-9
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1420-682X&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000282045900010
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=77957354597
    顯示於類別:[張光裕] 期刊論文

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