ScRNAseq of CD8+ T cells from autoimmune encephalitis

ABSTRACT: Single-cell RNA sequencing in seven anti-Ri autoimmune encephalitis (AIE) patients and three controls showed that neuron-reactive CD8+ T cells are cytotoxic KIR+ CD8+ regulatory T cells. In Ri-AIE, these cells had reduced KIR and IKZF2 (Helios) expression, alongside activated TCR signaling and elevated TNF and IFNG. They also overexpressed TOX, linked to brain-infiltrating cytotoxicity. These findings suggest a loss of regulatory function in KIR+ CD8+ T cells contributes to Ri-AIE pathogenesis.

ORGANISM(S): Homo sapiens

PROVIDER: GSE263666 | GEO | 2025/08/15

REPOSITORIES: GEO