Article
作者: Ghosh, Tusharkanti ; Brenner, Michael B ; Howard, Kaitlyn ; Lederer, James ; Griffith, Alec ; Sparks, Jeffrey A ; Hacohen, Nir ; Firestein, Gary S ; Gurra, Miranda G ; Zhang, Fan ; Pitzalis, Costantino ; Deane, Kevin D ; Guthridge, Joel M ; Keegan, Joshua ; Apruzzese, William ; James, Judith A ; Donlin, Laura T ; Moreland, Larry ; Jonsson, Anna Helena ; Pulford, John F ; Norris, Jill M ; Horisberger, Alice ; Feser, Marie L ; Cuda, Carla M ; Gurajala, Siddarth ; Murzin, Ekaterina ; Seifert, Jennifer A ; Bathon, Joan M ; Hughes, Laura B ; Perlman, Harris ; Hancock, Brandon ; Dominguez, Salina T ; Inamo, Jun ; Bykerk, Vivian P ; Goodman, Susan ; Bridges, S Louis ; Raychaudhuri, Soumya ; Cao, Ye ; Anolik, Jennifer H ; Rao, Deepak A ; Holers, V Michael ; Filer, Andrew
Rheumatoid arthritis (RA) is a systemic autoimmune disease currently with no universally highly effective prevention strategies. Identifying pathogenic immune phenotypes in at-risk populations prior to clinical onset is crucial to establishing effective prevention strategies. Here, we applied multimodal single-cell technologies (mass cytometry and CITE-Seq) to characterize the immunophenotypes in blood from at-risk individuals (ARIs) identified through the presence of serum antibodies against citrullinated protein antigens (ACPAs) and/or first-degree relative (FDR) status, as compared with patients with established RA and people in a healthy control group. We identified significant cell expansions in ARIs compared with controls, including CCR2+CD4+ T cells, T peripheral helper (Tph) cells, type 1 T helper cells, and CXCR5+CD8+ T cells. We also found that CD15+ classical monocytes were specifically expanded in ACPA-negative FDRs, and an activated PAX5lo naive B cell population was expanded in ACPA-positive FDRs. Further, we uncovered the molecular phenotype of the CCR2+CD4+ T cells, expressing high levels of Th17- and Th22-related signature transcripts including CCR6, IL23R, KLRB1, CD96, and IL22. Our integrated study provides a promising approach to identify targets to improve prevention strategy development for RA.