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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. P2RY8 variants in lupus patients uncover a role for the receptor in immunological tolerance. J Exp Med 2022; 219:e20211004. [PMID: 34889940 PMCID: PMC8669517 DOI: 10.1084/jem.20211004] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 08/26/2021] [Accepted: 11/18/2021] [Indexed: 12/30/2022] Open
Abstract
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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MESH Headings
- Animals
- Antiphospholipid Syndrome/genetics
- Antiphospholipid Syndrome/immunology
- Antiphospholipid Syndrome/metabolism
- B-Lymphocyte Subsets/immunology
- B-Lymphocyte Subsets/metabolism
- Cell Line, Tumor
- Female
- HEK293 Cells
- Humans
- Immune Tolerance/genetics
- Immune Tolerance/immunology
- Lupus Erythematosus, Systemic/genetics
- Lupus Erythematosus, Systemic/immunology
- Lupus Erythematosus, Systemic/metabolism
- Lupus Nephritis/genetics
- Lupus Nephritis/immunology
- Lupus Nephritis/metabolism
- Male
- Mice, Inbred C57BL
- Mutation, Missense/genetics
- Mutation, Missense/immunology
- Pedigree
- Plasma Cells/immunology
- Plasma Cells/metabolism
- Receptors, Purinergic P2Y/genetics
- Receptors, Purinergic P2Y/immunology
- Receptors, Purinergic P2Y/metabolism
- Signal Transduction/genetics
- Signal Transduction/immunology
- Mice
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Affiliation(s)
- Yuke He
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Antonia E. Gallman
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA
| | - Chengmei Xie
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qian Shen
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - Jianyang Ma
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Finn D. Wolfreys
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA
| | - Moriah Sandy
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA
| | - Todor Arsov
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - Xiaoqian Wu
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yuting Qin
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Pingjing Zhang
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Simon Jiang
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - Maurice Stanley
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - Philip Wu
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - Jingjing Tan
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - Huihua Ding
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Haiyan Xue
- Department of Pediatrics, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Chen
- Department of Pediatrics, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jinping Xu
- Department of Pediatrics, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Lindsey A. Criswell
- Russell/Engleman Rheumatology Research Center, Department of Medicine, University of California, San Francisco, San Francisco, CA
| | - Joanne Nititham
- Russell/Engleman Rheumatology Research Center, Department of Medicine, University of California, San Francisco, San Francisco, CA
| | - Marcin Adamski
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - A. Richard Kitching
- Centre for Personalised Immunology, Centre for Inflammatory Diseases, Monash University Department of Medicine, Clayton, Victoria, Australia
| | - Matthew C. Cook
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - Lanfang Cao
- Department of Pediatrics, Renji Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Nan Shen
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jason G. Cyster
- Howard Hughes Medical Institute and Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA
| | - Carola G. Vinuesa
- Centre for Personalised Immunology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Centre for Personalised Immunology, John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
- Francis Crick Institute, London, UK
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