Deubiquitylase OTUD6B stabilizes the mutated pVHL and suppresses cell migration in clear cell renal cell carcinoma.
Deubiquitylase OTUD6B stabilizes the mutated pVHL and suppresses cell migration in clear cell renal cell carcinoma.
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去泛素化酶 OTUD6B 稳定突变的 pVHL 并抑制透明细胞肾细胞癌中的细胞迁移
DOI:
10.1038/s41419-021-04135-3
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发表时间:
2022-02-02
影响因子:
9
通讯作者:
Cui CP
中科院分区:
文献类型:
--
作者:
Guo K;Wei Y;Wang Z;Zhang X;Zhang X;Liu X;Wu W;Wu Z;Zhang L;Cui CP
Von Hippel-Lindau (VHL) is an important tumor suppressor, and its inactivation is a hallmark of inherited VHL disease and most sporadic clear cell renal cell carcinoma (ccRCC). VHL protein (pVHL) with missense point mutations are unstable and degraded by the proteasome because of the disruption of elongin binding. Deubiquitylase ovarian tumor domain-containing 6B (OTUD6B) had been documented to couple pVHL and elongin B to form stable VHL - elonginB - elonginC complex, which protects pVHL from degradation. However, whether OTUD6B governs the stability of pVHL wild type and the missense mutants in ccRCC remains largely elusive. Here, we reported that low OTUD6B level predicted poorer survival in ccRCC patients with VHL missense mutation, but not frameshift deletion and nonsense mutation. OTUD6B is able to interact with wild type pVHL and tumor-derived pVHL missense mutants, except for pVHL I151T, and decrease their ubiquitylation and proteasomal degradation in ccRCC cells. Functionally, we revealed that OTUD6B depletion enhanced cell migration and HIF-2α level in ccRCC cells in a pVHL dependent manner. In addition, OTUD6B depletion reduced the inhibitory effects of ectopic pVHL missense mutants on cell migration and HIF-2α level, except for pVHL I151T. Thus, we speculated that I151 residue might be one of key sites of pVHL binding to OTUD6B. These results suggested that OTUD6B is an important regulator for the stability of pVHL missense mutants, which provides a potential therapeutic strategy for ccRCC with VHL mutations.
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影响因子:
64.8
作者:
Maxwell, PH;Wiesener, MS;Ratcliffe, PJ
通讯作者:
Ratcliffe, PJ
影响因子:
5.7
作者:
Nguyen, Henry C.;Yang, Haitao;Fribourgh, Jennifer L.;Wolfe, Leslie S.;Xiong, Yong
通讯作者:
Xiong, Yong
影响因子:
56.9
作者:
DUAN, DR;PAUSE, A;KLAUSNER, RD
通讯作者:
KLAUSNER, RD
DOI:
10.1073/pnas.92.14.6459
发表时间:
1995-07-03
影响因子:
11.1
作者:
DUAN, DR;HUMPHREY, JS;KLAUSNER, RD
通讯作者:
KLAUSNER, RD
DOI:
10.1038/nrdp.2017.9
发表时间:
2017-03-09
期刊:
Nature reviews. Disease primers
影响因子:
--
作者:
Hsieh JJ;Purdue MP;Signoretti S;Swanton C;Albiges L;Schmidinger M;Heng DY;Larkin J;Ficarra V
通讯作者:
Ficarra V