Heat Treatment Promotes Ubiquitin-Mediated Proteolysis of SARS-CoV-2 RNA Polymerase and Decreases Viral Load.
Heat Treatment Promotes Ubiquitin-Mediated Proteolysis of SARS-CoV-2 RNA Polymerase and Decreases Viral Load.
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热处理促进泛素介导的 SARS-CoV-2 RNA 聚合酶蛋白水解并降低病毒载量
DOI:
10.34133/2022/9802969
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Naranmandura H
中科院分区:
文献类型:
--
作者:
Maimaitiyiming Y;Yang T;Wang QQ;Feng Y;Chen Z;Björklund M;Wang F;Hu C;Hsu CH;Naranmandura H
Despite extensive efforts, COVID-19 pandemic caused by the SARS-CoV-2 virus is still at large. Vaccination is an effective approach to curb virus spread, but several variants (e.g., delta, delta plus, omicron, and IHU) appear to weaken or possibly escape immune protection. Thus, novel and quickly scalable approaches to restrain SARS-CoV-2 are urgently needed. Multiple evidences showed thermal sensitivity of SARS-CoV-2 and negative correlation between environmental temperature and COVID-19 transmission with unknown mechanism. Here, we reveal a potential mechanism by which mild heat treatment destabilizes the wild-type RNA-dependent RNA polymerase (also known as nonstructural protein 12 (NSP12)) of SARS-CoV-2 as well as the P323L mutant commonly found in SARS-CoV-2 variants, including omicron and IHU. Mechanistically, heat treatment promotes E3 ubiquitin ligase ZNF598-dependent NSP12 ubiquitination leading to proteasomal degradation and significantly decreases SARS-CoV-2 RNA copy number and viral titer. A mild daily heat treatment maintains low levels of both wild-type and P323L mutant of NSP12, suggesting clinical potential. Collectively, this novel mechanism, heat-induced NSP12 degradation, suggests a prospective heat-based intervention against SARS-CoV-2.
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影响因子:
3.1
作者:
Cihoric, Nikola;Tsikkinis, Alexandros;Ghadjar, Pirus
通讯作者:
Ghadjar, Pirus
影响因子:
39
作者:
Wu, Chaomin;Chen, Xiaoyan;Song, Yuanlin
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影响因子:
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作者:
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通讯作者:
Poon LLM
DOI:
10.1093/emph/eoaa036
发表时间:
2020
期刊:
Evolution, medicine, and public health
影响因子:
--
作者:
Crespi B
通讯作者:
Crespi B
影响因子:
11.8
作者:
O'Shea TJ;Cryan PM;Cunningham AA;Fooks AR;Hayman DT;Luis AD;Peel AJ;Plowright RK;Wood JL
通讯作者:
Wood JL