SARS-CoV-2 couples evasion of inflammatory response to activated nucleotide synthesis.
SARS-CoV-2 couples evasion of inflammatory response to activated nucleotide synthesis.
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DOI:
10.1073/pnas.2122897119
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发表时间:
2022-06-28
影响因子:
11.1
通讯作者:
中科院分区:
文献类型:
--
作者:
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused the global COVID-19 pandemic. Although ongoing vaccination drastically reduces SARS-CoV-2 infection, mutant viruses are emerging under the pressure of neutralizing antibodies, calling for new antiviral strategies. Here, we report that SARS-CoV-2 couples evasion of inflammatory response to activated nucleotide synthesis. Inhibition of a key metabolic enzyme not only depletes the nucleotide pool but also restores host inflammatory defense, thereby effectively impeding SARS-CoV-2 replication. Targeting cellular enzymes offers an avenue to combat rapidly evolving SARS-CoV-2 variants. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) evolves rapidly under the pressure of host immunity, as evidenced by waves of emerging variants despite effective vaccinations, highlighting the need for complementing antivirals. We report that targeting a pyrimidine synthesis enzyme restores inflammatory response and depletes the nucleotide pool to impede SARS-CoV-2 infection. SARS-CoV-2 deploys Nsp9 to activate carbamoyl-phosphate synthetase, aspartate transcarbamoylase, and dihydroorotase (CAD) that catalyzes the rate-limiting steps of the de novo pyrimidine synthesis. Activated CAD not only fuels de novo nucleotide synthesis but also deamidates RelA. While RelA deamidation shuts down NF-κB activation and subsequent inflammatory response, it up-regulates key glycolytic enzymes to promote aerobic glycolysis that provides metabolites for de novo nucleotide synthesis. A newly synthesized small-molecule inhibitor of CAD restores antiviral inflammatory response and depletes the pyrimidine pool, thus effectively impeding SARS-CoV-2 replication. Targeting an essential cellular metabolic enzyme thus offers an antiviral strategy that would be more refractory to SARS-CoV-2 genetic changes.
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影响因子:
24.1
作者:
Li X;Hou P;Ma W;Wang X;Wang H;Yu Z;Chang H;Wang T;Jin S;Wang X;Wang W;Zhao Y;Zhao Y;Xu C;Ma X;Gao Y;He H
通讯作者:
He H
DOI:
10.1074/jbc.ra120.015303
发表时间:
2020-12-25
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Lu J;Sun PD
通讯作者:
Sun PD
DOI:
10.1016/b978-0-12-811257-1.00003-6
发表时间:
2018-03-30
期刊:
Viruses
影响因子:
--
作者:
Rampersad S;Tennant P
通讯作者:
Tennant P
影响因子:
29
作者:
Codo, Ana Campos;Davanzo, Gustavo Gastao;Moraes-Vieira, Pedro M.
通讯作者:
Moraes-Vieira, Pedro M.
影响因子:
64.8
作者:
Rabinovich S;Adler L;Yizhak K;Sarver A;Silberman A;Agron S;Stettner N;Sun Q;Brandis A;Helbling D;Korman S;Itzkovitz S;Dimmock D;Ulitsky I;Nagamani SC;Ruppin E;Erez A
通讯作者:
Erez A