Fibroblast growth factor receptor 1 as a potential marker of terminal effector peripheral T helper cells in rheumatoid arthritis patients.
Rheumatology (Oxford)
; 62(11): 3763-3769, 2023 11 02.
Article
em En
| MEDLINE
| ID: mdl-37184877
ABSTRACT
OBJECTIVES:
RA is an autoimmune disease characterized by destructive polyarthritis. CD4+ T cells are pivotal to its pathogenesis, and our previous study revealed the expression of fibroblast growth factor receptor 1 (FGFR1) is modulated by MTX treatment in CD4+ T cells of RA patients; however, the roles of FGFR1 in CD4+ T cells in the pathogenesis of RA is unclear. Therefore, in this study, we aimed to characterize FGFR1-positive CD4+ T cells in RA patients.METHODS:
The abundance of FGFR1-positive CD4+ T cells in peripheral blood and synovium was determined. Single-cell RNA sequencing (scRNA-seq) was performed on synovial CD4+ T cells to characterize FGFR1-positive cells. In addition, T cell activation status and cytokine production were determined using flow cytometry.RESULTS:
The percentage of FGFR1-positive CD4+ T cells in the peripheral blood was higher in RA patients than in healthy controls (P =0.0035). They were also present in the synovium of active RA patients. The results of scRNA-seq revealed that peripheral Th (Tph) cells preferentially expressed FGFR1. Additionally, these FGFR1-positive Tph cells displayed a terminal effector cell phenotype. Consistent with this finding, FGFR1-positive CD4+ T cells in peripheral blood expressed IL-21 and IFN-γ.CONCLUSION:
Our study provides evidence that FGFR1 marks terminal effector Tph cells in patients with RA.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Artrite Reumatoide
/
Receptor Tipo 1 de Fator de Crescimento de Fibroblastos
Limite:
Humans
Idioma:
En
Revista:
Rheumatology (Oxford)
Assunto da revista:
REUMATOLOGIA
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Japão