Related Experiment Video
Updated: Jun 3, 2025
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Identification of Skeletal Muscle Satellite Cells by Immunofluorescence with Pax7 and Laminin Antibodies
Published on: April 19, 2018
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The Development of Prenatal Muscle Satellite Cells (MuSCs) and Their Epigenetic Modifications During Skeletal Muscle
Guoxiong Nan1, Wei Peng1, Shangrong Xu1
1College of Animal Husbandry and Veterinary Science, Qinghai University, Xining 810016, China.
Biology
|January 8, 2025
Summary
Yak muscle satellite cell (MuSC) development involves distinct epigenetic changes, including DNA methylation and histone modifications, during fetal growth. These modifications are crucial for skeletal muscle development, offering insights into molecular mechanisms.
Area of Science:
- Animal Science
- Developmental Biology
- Epigenetics
Background:
- Muscle satellite cells (MuSCs) are crucial for skeletal muscle regeneration and development.
- Understanding prenatal MuSC development and epigenetic regulation is vital for livestock growth.
Purpose of the Study:
- To investigate prenatal muscle satellite cell (MuSC) development in yak.
- To analyze associated epigenetic modifications during fetal skeletal muscle growth.
Main Methods:
- Histology and immunofluorescence staining of fetal yak longissimus dorsi muscle.
- Morphological and protein co-localization analyses at various gestational stages.
Main Results:
- Identified key time points for primary (40 days) and secondary (105 days) muscle fiber formation.
- Observed dynamic changes in MuSC proliferation and epigenetic modifications (5mC, 5hmC, H3K4me3) during development.
- MuSC location and appearance within myotubes were critical during specific fiber formation phases.
Conclusions:
- Yak fetal skeletal muscle development is characterized by specific temporal patterns of MuSC activity and epigenetic modifications.
- DNA methylation and histone modifications in MuSCs are closely linked to yak muscle development.
- Provides a foundation for future research into the molecular mechanisms of yak muscle growth.
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