Noncanonical NF-kappaB activation requires coordinated assembly of a regulatory complex of the adaptors cIAP1, cIAP2, TRAF2 and TRAF3 and the kinase NIK.

Noncanonical NF-kappaB activation requires coordinated assembly of a regulatory complex of the adaptors cIAP1, cIAP2, TRAF2 and TRAF3 and the kinase NIK.
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DOI:
10.1038/ni.1676
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发表时间:
2008-12
期刊:
影响因子:
30.5
通讯作者:
Cheng, Genhong
Cheng, Genhong
中科院分区:
医学1区
文献类型:
--
作者:
Zarnegar, Brian J.;Wang, Yaya;Mahoney, Douglas J.;Dempsey, Paul W.;Cheung, Herman H.;He, Jeannie;Shiba, Travis;Yang, Xiaolu;Yeh, Wen-chen;Mak, Tak W.;Korneluk, Robert G.;Cheng, Genhong

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最近的研究表明,核因子κ B诱导激酶(NIK)通过TRAF 2、TRAF 3和cIAP 1或cIAP 2调节的组成性蛋白酶体介导的降解而被抑制。在这里,我们证明了NIK的降解发生在通过TRAF 3募集NIK和TRAF 2募集cIAP 1和cIAP 2组装调节复合物后。与TRAF 2和TRAF 3相反,cIAP 1和cIAP 2似乎在NIK降解中发挥多余的作用,因为抑制两种cIAP是非经典NF-κB活化和增加原代B淋巴细胞存活和增殖所必需的。此外,TRAF 3缺陷小鼠的致死率可以通过单个NIK基因来挽救,这突出了严格调控的NIK的重要性。
Recent studies suggest that nuclear factor κB-inducing kinase (NIK) is suppressed through constitutive proteasome-mediated degradation regulated by TRAF2, TRAF3 and cIAP1 or cIAP2. Here, we demonstrated that the degradation of NIK occurred upon assembly of a regulatory complex through TRAF3 recruitment of NIK and TRAF2 recruitment of cIAP1 and cIAP2. In contrast to TRAF2 and TRAF3, cIAP1 and cIAP2 seem to play redundant roles in the degradation of NIK, as inhibition of both cIAPs was required for noncanonical NF-κB activation and increased survival and proliferation of primary B lymphocytes. Furthermore, the lethality of TRAF3-deficient mice could be rescued by a single NIK gene, highlighting the importance of tightly regulated NIK.
DOI: 10.1084/jem.193.8.943
发表时间: 2001-04-16
期刊: The Journal of experimental medicine
影响因子: --
作者:
Brown KD;Hostager BS;Bishop GA
通讯作者: Bishop GA
DOI: 10.1038/ni842
发表时间: 2002-10-01
期刊: NATURE IMMUNOLOGY
影响因子: 30.5
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期刊: BMC genomics
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