Transcriptomics

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Single-cell transcriptomes and T cell receptor sequences of memory T lymphocytes from the peripheral blood and the synovial fluid of patients with juvenile idiopathic arthritis.


ABSTRACT: Antigen-experienced (or memory) T lymphocytes were isolated from the synovial fluid of inflamed joints and the peripheral blood of patients with juvenile idiopathic arthritis (JIA). After flow-sort of CD4+CD45RO+CD25- (Tcon), CD4+CD45RO+CD127loCD25+ (Treg) and CD8+CD45RO+ T cells, single-cell RNA-sequencing was conducted to perform paired analyses of gene transcription and T cell receptor (TCR) repertoires in the same cells. The study aimed to identify T memory cells that were stimulated by antigens in inflamed joints of JIA patients and which perpetuate chronic inflammation by expression pro-inflammatory genes. In addition, the study aimed at understanding the clonal relationships of T cells differentiating at chronically inflamed sites, as well as to identify blood-circulating T cell clones that shared gene expression and antigen-specificity with T cells in inflamed joints in order to improve patient stratification and diagnostics of patients with chronic inflammatory diseases in the future.

ORGANISM(S): Homo sapiens

PROVIDER: GSE160097 | GEO | 2020/11/27

REPOSITORIES: GEO

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