ArticlebioRxiv : the preprint server for biology2026
Single-cell transcriptional landscape of muscle-derived stem/progenitor cells reveals hallmarks of aging and rejuvenation.
Article in bioRxiv : the preprint server for biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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8 authors.
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Abstract
Muscle-derived stem/progenitor cells (MDSPCs) are an adult stem cell population with demonstrated regenerative and rejuvenative potential distinct from other muscle progenitor cells. However, their molecular identity and developmental status remain poorly defined. Using single-cell transcriptomics and proteomics, we comprehensively profiled murine MDSPCs across age groups. We show that MDSPCs exist along a transcriptional continuum of maturation-ranging from metabolically active, proliferative early-stage cells to late-stage, lineage-committed myogenic populations. While lacking canonical pluripotency markers, early-stage MDSPCs express gene programs associated with embryonic progenitor identity, suggesting a non-canonical, multipotent-like state. These features distinguish them from both satellite cells and committed myoblasts. Aging reshapes this continuum by reducing stemness-associated signatures while enhancing differentiation programs and oxidative stress. Our identification of distinct MDSPC states provide critical insights into mechanisms that underly tissue regeneration and aging. These findings offer a blueprint for development of future regenerative therapies to combat age-related functional decline.
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