Chromatin accessibility of circulating CD8⁺ T cells differentiates disease severity in IgA nephropathy.

ABSTRACT: Immunoglobulin A (IgA) nephropathy (IgAN) is a prevalent primary glomerulonephritis with progressive potential. Early identification of high-risk patients is critical; however, current clinical and pathological markers are limited. This study aimed to identify epigenetic biomarkers in circulating CD8⁺ T cells that discriminate IgAN patients with different disease severity. Seventeen patients with biopsy-proven IgAN were stratified into early- and late-stage groups based on kidney function. CD8⁺ T cells were isolated and analyzed using transposase-accessible chromatin sequencing (ATAC-Seq) to assess chromatin accessibility. Differentially accessible regions (DARs) were identified and selected biomarkers were additionally analyzed with ATAC-qPCR. In total, 279 DARs were identified, of which

SUBMITTER: Kim G 

PROVIDER: S-EPMC12800059 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature