P2RY8 variants in lupus patients uncover a role for the receptor in immunological tolerance.
P2RY8 variants in lupus patients uncover a role for the receptor in immunological tolerance.
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狼疮患者的 P2RY8 变异揭示了受体在免疫耐受中的作用。
DOI:
10.1084/jem.20211004
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发表时间:
2022-01-03
期刊:
影响因子:
--
通讯作者:
Vinuesa CG
中科院分区:
文献类型:
--
作者:
He Y;Gallman AE;Xie C;Shen Q;Ma J;Wolfreys FD;Sandy M;Arsov T;Wu X;Qin Y;Zhang P;Jiang S;Stanley M;Wu P;Tan J;Ding H;Xue H;Chen W;Xu J;Criswell LA;Nititham J;Adamski M;Kitching AR;Cook MC;Cao L;Shen N;Cyster JG;Vinuesa CG
Somatic mutations in P2RY8 that promote B cell growth and migration are common in lymphomas. He et al. describe germline loss-of-function P2RY8 variants in SLE and uncover novel functions of P2RY8 in immunological tolerance through restraining plasma cell development and promoting B cell–negative selection. B cell self-tolerance is maintained through multiple checkpoints, including restraints on intracellular signaling and cell trafficking. P2RY8 is a receptor with established roles in germinal center (GC) B cell migration inhibition and growth regulation. Somatic P2RY8 variants are common in GC-derived B cell lymphomas. Here, we identify germline novel or rare P2RY8 missense variants in lupus kindreds or the related antiphospholipid syndrome, including a “de novo” variant in a child with severe nephritis. All variants decreased protein expression, F-actin abundance, and GPCR-RhoA signaling, and those with stronger effects increased AKT and ERK activity and cell migration. Remarkably, P2RY8 was reduced in B cell subsets from some SLE patients lacking P2RY8 gene variants. Low P2RY8 correlated with lupus nephritis and increased age-associated B cells and plasma cells. By contrast, P2RY8 overexpression in cells and mice restrained plasma cell development and reinforced negative selection of DNA-reactive developing B cells. These findings uncover a role of P2RY8 in immunological tolerance and lupus pathogenesis.
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影响因子:
12.8
作者:
Ghodke-Puranik Y;Niewold TB
通讯作者:
Niewold TB
影响因子:
82.9
作者:
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通讯作者:
Carrera, AC
DOI:
10.1084/jem.194.1.45
发表时间:
2001-07-02
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Hargreaves DC;Hyman PL;Lu TT;Ngo VN;Bidgol A;Suzuki G;Zou YR;Littman DR;Cyster JG
通讯作者:
Cyster JG
影响因子:
3.6
作者:
Eckhardt,Emmelie;Bastian,Max
通讯作者:
Bastian,Max
DOI:
10.2174/1875397301004010084
发表时间:
2010-12-21
期刊:
Current chemical genomics
影响因子:
--
作者:
Cheng Z;Garvin D;Paguio A;Stecha P;Wood K;Fan F
通讯作者:
Fan F