Transcriptomics

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RNA-seq of BATF-overexpressing CD8 T cells in vitro


ABSTRACT: T cells infiltrate pancreatic islets during the progression of type 1 diabetes (T1D) but their differentiation states have not been completely defined. We used unbiased single-cell RNA sequencing analyses to gain further insight into the phenotypic complexity of islet-infiltrating T cells in non-obese diabetic (NOD) mice. In the CD4 T cell compartment, we identified naïve, memory, and regulatory T cells, as well as multiple Il21 expressing effector subsets positive for markers indicative of Th1 and Tfh cells. In CD8 T cells, we identified two activated subsets in addition to naïve cells. The two activated islet CD8 T cell subsets respectively resemble the self-renewing progenitor cells and the terminally differentiated/exhausted effectors during chronic lymphocytic choriomeningitis virus infection. We also identified a BATF-driven transcriptional signature promoting the diabetogenic activity of islet-infiltrating β cell autoreactive CD8 T effectors. Our results provide a useful resource for understanding T cell differentiation programs in T1D.

ORGANISM(S): Mus musculus

PROVIDER: GSE125452 | GEO | 2024/01/22

REPOSITORIES: GEO

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