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Division-Independent Differentiation of Muscle Stem Cells During a Growth Stimulus.
- Source :
- Stem Cells; Mar2024, Vol. 42 Issue 3, p266-277, 12p
- Publication Year :
- 2024
-
Abstract
- Adult muscle stem cells (MuSCs) are known to replicate upon activation before differentiating and fusing to regenerate myofibers. It is unclear whether MuSC differentiation is intrinsically linked to cell division, which has implications for stem cell population maintenance. We use single-cell RNA-sequencing to identify transcriptionally diverse subpopulations of MuSCs after 5 days of a growth stimulus in adult muscle. Trajectory inference in combination with a novel mouse model for tracking MuSC-derived myonuclei and in vivo labeling of DNA replication revealed an MuSC population that exhibited division-independent differentiation and fusion. These findings demonstrate that in response to a growth stimulus in the presence of intact myofibers, MuSC division is not obligatory. [ABSTRACT FROM AUTHOR]
- Subjects :
- STEM cells
CELL growth
MUSCLE cells
DNA replication
CELL populations
Subjects
Details
- Language :
- English
- ISSN :
- 10665099
- Volume :
- 42
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Stem Cells
- Publication Type :
- Academic Journal
- Accession number :
- 176041314
- Full Text :
- https://doi.org/10.1093/stmcls/sxad091