TRIM59 regulates autophagy through modulating both the transcription and the ubiquitination of BECN1.
TRIM59 regulates autophagy through modulating both the transcription and the ubiquitination of BECN1.
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TRIM59 通过调节 BECN1 的转录和泛素化来调节自噬
DOI:
10.1080/15548627.2018.1491493
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发表时间:
2018
期刊:
影响因子:
13.3
通讯作者:
Wang JB
中科院分区:
文献类型:
--
作者:
Han T;Guo M;Gan M;Yu B;Tian X;Wang JB
ABSTRACT Macroautophagy/autophagy is a multistep cellular process that sequesters cytoplasmic components for lysosomal degradation. BECN1/Beclin1 is a central protein that assembles cofactors for the formation of a BECN1-PIK3C3-PIK3R4 complex to trigger the autophagy protein cascade. Discovering the regulators of BECN1 is important for understanding the mechanism of autophagy induction. Here, we demonstrate that TRIM59, a tripartite motif protein, plays an important role in autophagy regulation in non-small cell lung cancer (NSCLC). On the one hand, TRIM59 regulates the transcription of BECN1 through negatively modulating the NFKB pathway. On the other hand, TRIM59 regulates TRAF6 induced K63-linked ubiquitination of BECN1, thus affecting the formation of the BECN1-PIK3C3 complex. We further demonstrate that TRIM59 can mediate K48-linked ubiquitination of TRAF6 and promote the proteasomal degradation of TRAF6. Taken together, our findings reveal novel dual roles for TRIM59 in autophagy regulation by affecting both the transcription and the ubiquitination of BECN1. Abbreviations: ACTB: actin beta; BECN1: beclin 1; CHX: cycloheximide; CQ: chloroquine; GFP: green fluorescent protein; HA: haemagglutinin tag; His: polyhistidine tag; LC3B: microtubule associated protein 1 light chain 3 beta; NFKB: nuclear factor kappa B; NFKBIA: NFKB inhibitor alpha; NSCLC: non-small cell lung cancer; PIK3C3: phosphatidylinositol 3-kinase catalytic subunit type 3; RELA: RELA proto-oncogene, NF-kB subunit; SQSTM1: sequestosome 1; tGFP: Turbo green fluorescent protein; TRAF6: TNF receptor associated factor 6; TRIM59: tripartite motif containing 59; B: ubiquitin
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影响因子:
21.3
作者:
通讯作者:
--
DOI:
10.1083/jcb.201503023
发表时间:
2015-09-14
期刊:
The Journal of cell biology
影响因子:
--
作者:
Kimura T;Jain A;Choi SW;Mandell MA;Schroder K;Johansen T;Deretic V
通讯作者:
Deretic V
影响因子:
8.8
作者:
Liu, Tao;Tang, Qin;Cui, Jun
通讯作者:
Cui, Jun
影响因子:
19
作者:
Feng, Yuchen;Yao, Zhiyuan;Klionsky, Daniel J.
通讯作者:
Klionsky, Daniel J.
影响因子:
11.4
作者:
Kimura, Tomonori;Jia, Jingyue;Deretic, Vojo
通讯作者:
Deretic, Vojo