Uhrf1 regulates germinal center B cell expansion and affinity maturation to control viral infection.
Uhrf1 regulates germinal center B cell expansion and affinity maturation to control viral infection.
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Uhrf1 调节生发中心 B 细胞扩增和亲和力成熟以控制病毒感染。
DOI:
10.1084/jem.20171815
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发表时间:
2018-05-07
期刊:
影响因子:
--
通讯作者:
Wang X
中科院分区:
文献类型:
--
作者:
Chen C;Zhai S;Zhang L;Chen J;Long X;Qin J;Li J;Huo R;Wang X
The production of high-affinity antibody is essential for pathogen clearance. Antibody affinity is increased through germinal center (GC) affinity maturation, which relies on BCR somatic hypermutation (SHM) followed by antigen-based selection. GC B cell proliferation is essentially involved in these processes; it provides enough templates for SHM and also serves as a critical mechanism of positive selection. In this study, we show that expression of epigenetic regulator ubiquitin-like with PHD and RING finger domains 1 (Uhrf1) was markedly up-regulated by c-Myc–AP4 in GC B cells, and it was required for GC response. Uhrf1 regulates cell proliferation–associated genes including cdkn1a, slfn1, and slfn2 by DNA methylation, and its deficiency inhibited the GC B cell cycle at G1-S phase. Subsequently, GC B cell SHM and affinity maturation were impaired, and Uhrf1 GC B knockout mice were unable to control chronic virus infection. Collectively, our data suggest that Uhrf1 regulates GC B cell proliferation and affinity maturation, and its expression in GC B cells is required for virus clearance.
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DOI:
10.1126/science.aac4919
发表时间:
2015-08-07
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Gitlin AD;Mayer CT;Oliveira TY;Shulman Z;Jones MJ;Koren A;Nussenzweig MC
通讯作者:
Nussenzweig MC
影响因子:
14.9
作者:
Espada J;Peinado H;Lopez-Serra L;Setién F;Lopez-Serra P;Portela A;Renart J;Carrasco E;Calvo M;Juarranz A;Cano A;Esteller M
通讯作者:
Esteller M
影响因子:
4.8
作者:
Bashtrykov, Pavel;Jankevicius, Gytis;Jeltsch, Albert
通讯作者:
Jeltsch, Albert
影响因子:
32.4
作者:
Mesin, Luka;Ersching, Jonatan;Victora, Gabriel D.
通讯作者:
Victora, Gabriel D.
影响因子:
32.4
作者:
Chou, Chun;Verbaro, Daniel J.;Tonc, Elena;Holmgren, Melanie;Cella, Marina;Colonna, Marco;Bhattacharya, Deepta;Egawa, Takeshi
通讯作者:
Egawa, Takeshi