Targeting USP2 regulation of VPRBP-mediated degradation of p53 and PD-L1 for cancer therapy.
Targeting USP2 regulation of VPRBP-mediated degradation of p53 and PD-L1 for cancer therapy.
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DOI:
10.1038/s41467-023-37617-3
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发表时间:
2023-04-06
影响因子:
16.6
通讯作者:
Gu, Wei
中科院分区:
文献类型:
--
作者:
Yi, Jingjie;Tavana, Omid;Li, Huan;Wang, Donglai;Baer, Richard J.;Gu, Wei
Since Mdm2 (Mouse double minute 2) inhibitors show serious toxicity in clinic studies, different approaches to achieve therapeutic reactivation of p53-mediated tumor suppression in cancers need to be explored. Here, we identify the USP2 (ubiquitin specific peptidase 2)-VPRBP (viral protein R binding protein) axis as an important pathway for p53 regulation. Like Mdm2, VPRBP is a potent repressor of p53 but VPRBP stability is controlled by USP2. Interestingly, the USP2-VPRBP axis also regulates PD-L1 (programmed death-ligand 1) expression. Strikingly, the combination of a small-molecule USP2 inhibitor and anti-PD1 monoclonal antibody leads to complete regression of the tumors expressing wild-type p53. In contrast to Mdm2, knockout of Usp2 in mice has no obvious effect in normal tissues. Moreover, no obvious toxicity is observed upon the USP2 inhibitor treatment in vivo as Mdm2-mediated regulation of p53 remains intact. Our study reveals a promising strategy for p53-based therapy by circumventing the toxicity issue. The clinical success of restoring P53 for cancer therapy has been limited due to toxicity. Here, the authors identify USP2 as an upstream regulator of VPRBP-mediated degradation of p53 and PD-L1 and demonstrate the efficacy of combining USP2 inhibitor and PD-L1/PD-1 immune checkpoint blockade in cancers.
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影响因子:
5.6
作者:
Kitamura H;Hashimoto M
通讯作者:
Hashimoto M
DOI:
10.1146/annurev-pathol-012414-040349
发表时间:
2016-05-23
期刊:
Annual review of pathology
影响因子:
--
作者:
Karni-Schmidt O;Lokshin M;Prives C
通讯作者:
Prives C
影响因子:
3.2
作者:
Hong, Bo;van den Heuvel, A. Pieter J.;El-Deiry, Wafik S.
通讯作者:
El-Deiry, Wafik S.
影响因子:
5.3
作者:
Kim, Kyunghwan;Heo, Kyu;An, Woojin
通讯作者:
An, Woojin
影响因子:
64.8
作者:
Jiang, Le;Kon, Ning;Li, Tongyuan;Wang, Shang-Jui;Su, Tao;Hibshoosh, Hanina;Baer, Richard;Gu, Wei
通讯作者:
Gu, Wei