Deactylation by SIRT1 enables liquid–liquid phase separation of IRF3/IRF7 in innate antiviral immunity
Deactylation by SIRT1 enables liquid–liquid phase separation of IRF3/IRF7 in innate antiviral immunity
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SIRT1 的去乙酰化可实现先天抗病毒免疫中 IRF3/IRF7 的液-液相分离
DOI:
10.1038/s41590-022-01269-0
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发表时间:
2022-07
影响因子:
30.5
通讯作者:
Long Zhang
中科院分区:
文献类型:
--
作者:
Ziran Qin;Xiuwu Fang;Wenhuan Sun;Zhenyu Ma;Tong Dai;Shuai Wang;Zhi Zong;Huizhe Huang;Heng Ru;Huasong Lu;Bing Yang;Shixian Lin;Fangfang Zhou;Long Zhang
Innate antiviral immunity deteriorates with aging but how this occurs is not entirely clear. Here we identified SIRT1-mediated DNA-binding domain (DBD) deacetylation as a critical step for IRF3/7 activation that is inhibited during aging. Viral-stimulated IRF3 underwent liquid–liquid phase separation (LLPS) with interferon (IFN)-stimulated response element DNA and compartmentalized IRF7 in the nucleus, thereby stimulating type I IFN (IFN-I) expression. SIRT1 deficiency resulted in IRF3/IRF7 hyperacetylation in the DBD, which inhibited LLPS and innate immunity, resulting in increased viral load and mortality in mice. By developing a genetic code expansion orthogonal system, we demonstrated the presence of an acetyl moiety at specific IRF3/IRF7 DBD site/s abolish IRF3/IRF7 LLPS and IFN-I induction. SIRT1 agonists rescued SIRT1 activity in aged mice, restored IFN signaling and thus antagonized viral replication. These findings not only identify a mechanism by which SIRT1 regulates IFN production by affecting IRF3/IRF7 LLPS, but also provide information on the drivers of innate immunosenescence.
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影响因子:
7.3
作者:
Li M;Hu J;Mao H;Li D;Jiang Z;Sun Z;Yu T;Hu C;Xu X
通讯作者:
Xu X
影响因子:
29
作者:
Scheibye-Knudsen M;Mitchell SJ;Fang EF;Iyama T;Ward T;Wang J;Dunn CA;Singh N;Veith S;Hasan-Olive MM;Mangerich A;Wilson MA;Mattson MP;Bergersen LH;Cogger VC;Warren A;Le Couteur DG;Moaddel R;Wilson DM 3rd;Croteau DL;de Cabo R;Bohr VA
通讯作者:
Bohr VA
DOI:
10.1016/s2213-2600(20)30527-0
发表时间:
2021-03
期刊:
The Lancet. Respiratory medicine
影响因子:
--
作者:
Piroth L;Cottenet J;Mariet AS;Bonniaud P;Blot M;Tubert-Bitter P;Quantin C
通讯作者:
Quantin C
影响因子:
5.3
作者:
R. Lin;Y. Mamane;J. Hiscott
通讯作者:
R. Lin;Y. Mamane;J. Hiscott
影响因子:
48
作者:
Ryu, YH;Schultz, PG
通讯作者:
Schultz, PG