Dehydrocorydaline promotes myogenic differentiation via p38 MAPK activation
Miran Yoo1, Sang-Jin Lee1, Yong Kee Kim1
1Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul 140‑742, Republic of Korea.
Molecular Medicine Reports
|August 31, 2016
Summary
Dehydrocorydaline (DHC), a natural compound, enhances muscle regeneration by activating p38 MAPK and promoting myoblast differentiation. This compound shows potential for improving muscle stem cell capacity in injured muscles.
Area of Science:
- Biochemistry
- Cell Biology
- Pharmacology
Background:
- Muscle regeneration relies on muscle progenitor cell proliferation and differentiation.
- Myogenic differentiation involves MyoD activation, regulated by p38 MAPK.
- Identifying natural compounds that enhance muscle regeneration is crucial for therapeutic development.
Purpose of the Study:
- To investigate the effects of dehydrocorydaline (DHC) on myoblast differentiation.
- To elucidate the molecular mechanisms underlying DHC's action on muscle regeneration.
- To assess DHC's potential as a therapeutic agent for muscle injury.
Main Methods:
- Screening natural compounds for MyoD activity enhancement.
- Treating C2C12 myoblasts with DHC.
- Analyzing muscle-specific protein expression and myotube formation.
- Assessing p38 MAPK activation and MyoD-E protein interaction.
- Investigating DHC's effect on Cdo-depleted myoblasts.
Main Results:
- DHC treatment increased MyoD, myogenin, and myosin heavy chain expression in C2C12 myoblasts.
- DHC promoted multinucleated myotube formation without cytotoxicity.
- DHC elevated p38 MAPK activation and MyoD-E protein interaction.
- DHC restored differentiation in Cdo-depleted myoblasts.
- DHC enhanced p38 MAPK activation, MyoD activation, and myoblast differentiation.
Conclusions:
- DHC stimulates p38 MAPK activation, enhancing MyoD-E protein heterodimerization and promoting myoblast differentiation.
- DHC facilitates muscle stem cell regenerative capacity in injured muscle.
- DHC represents a potential therapeutic compound for muscle regeneration.
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