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Please use this identifier to cite or link to this item:
http://ir.nhri.org.tw/handle/3990099045/10231
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Title: | K48-linked KLF4 ubiquitination by E3 ligase Mule controls T-cell proliferation and cell cycle progression |
Authors: | Hao, Z;Sheng, Y;Duncan, GS;Li, WY;Dominguez, C;Sylvester, J;Su, YW;Lin, GH;Snow, BE;Brenner, D;You-Ten, A;Haight, J;Inoue, S;Wakeham, A;Elford, A;Hamilton, S;Liang, Y;Zuniga-Pflucker, JC;He, HH;Ohashi, PS;Mak, TW |
Contributors: | Immunology Research Center |
Abstract: | T-cell proliferation is regulated by ubiquitination but the underlying molecular mechanism remains obscure. Here we report that Lys-48-linked ubiquitination of the transcription factor KLF4 mediated by the E3 ligase Mule promotes T-cell entry into S phase. Mule is elevated in T cells upon TCR engagement, and Mule deficiency in T cells blocks proliferation because KLF4 accumulates and drives upregulation of its transcriptional targets E2F2 and the cyclin-dependent kinase inhibitors p21 and p27. T-cell-specific Mule knockout (TMKO) mice develop exacerbated experimental autoimmune encephalomyelitis (EAE), show impaired generation of antigen-specific CD8+ T cells with reduced cytokine production, and fail to clear LCMV infections. Thus, Mule-mediated ubiquitination of the novel substrate KLF4 regulates T-cell proliferation, autoimmunity and antiviral immune responses in vivo. |
Date: | 2017-01-13 |
Relation: | Nature Communications. 2017 Jan 13;8:Article number 14003. |
Link to: | http://dx.doi.org/10.1038/ncomms14003 |
JIF/Ranking 2023: | http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=2041-1723&DestApp=IC2JCR |
Cited Times(WOS): | https://www.webofscience.com/wos/woscc/full-record/WOS:000391936100001 |
Cited Times(Scopus): | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85009436144 |
Appears in Collections: | [蘇郁文] 期刊論文
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