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The immune landscape of murine skeletal muscle regeneration and aging

GSE279741 Mus musculus Expression profiling by high throughput sequencing 8 samples Submitted 2024/10/18 Platform GPL24247
Summary
Age-related alterations in the immune system are starting to emerge as key contributors to impairments found in aged organs. A decline in regenerative capacity is a hallmark of tissue aging, however the contribution of immune aging to regenerative failure is just starting to be explored. Here, we applied a strategy combining single-cell RNA-sequencing with flow cytometry and functional assays to perform a complete analysis of the immune environment in the aged regenerating skeletal muscle, with time and single cell resolution. Our results identified previously undescribed immune cell types in the skeletal muscle and revealed an unanticipated complexity and functional heterogeneity in immune populations, that have been regarded as homogeneous. Furthermore, we uncovered a profound remodeling of both myeloid and lymphoid compartments in aging. These discoveries challenge established notions on immune regulation of skeletal muscle regeneration, providing a new set of potential targets to improve skeletal muscle health and regenerative capacity in aging.
Published in
The immune landscape of murine skeletal muscle regeneration and aging
Sousa NS, Bica M, Brás MF et al. · Cell reports 2024 · PMID 39541212 · doi:10.1016/j.celrep.2024.114975
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Also filed as BioProject PRJNA1174189 and SRA study SRP539198. Searching any of these in the dataset finder brings you back here.

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