CD8+ T cells induce interferon-responsive oligodendrocytes and microglia in white matter aging.

Overview
Related items

A hallmark of nervous system aging is a decline of white matter volume and function, but the underlying mechanisms leading to white matter pathology are unknown. In the present study, we found age-related alterations of oligodendrocyte cell state with a reduction in total oligodendrocyte density in aging murine white matter. Using single-cell RNA-sequencing, we identified interferon (IFN)-responsive oligodendrocytes, which localize in proximity to CD8(+) T cells in aging white matter. Absence of functional lymphocytes decreased the number of IFN-responsive oligodendrocytes and rescued oligodendrocyte loss, whereas T-cell checkpoint inhibition worsened the aging response. In addition, we identified a subpopulation of lymphocyte-dependent, IFN-responsive microglia in the vicinity of the CD8(+) T cells in aging white matter. In summary, we provide evidence that CD8(+) T-cell-induced, IFN-responsive oligodendrocytes and microglia are important modifiers of white matter aging.

SEEK ID: https://goeseek.gwdguser.de/studies/299

Investigation: Z02 - Genomics and Bioinformatics Platform

Projects: TRR 274: Checkpoints of Central Nervous System Recovery

Study position:

Help

Tree Split Graph