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Dev Dyn. 1992 Jan;193(1):34-9.

MyoD and myogenin are coexpressed in regenerating skeletal muscle of the mouse.

Author information

1
Laboratory of Mammalian Genes and Development, National Institute of Child Health and Human Development, Bethesda, Maryland 20892.

Abstract

The differential expression of genes triggering myogenesis might cause or reflect differences among myoblasts. Little is known about the presence of MyoD1 and myogenin during the process of regeneration. We therefore examined the expression of MyoD1 and myogenin in muscle regeneration after grafting. Immunostaining of regenerating skeletal muscle of the mouse revealed the presence of both MyoD1 and myogenin. In mononucleated cells the proteins were not detected until shortly before fusion into myotubes. They persisted in the nuclei of regenerated muscle fibers for at least 2 weeks. MyoD1 and myogenin were not detected in nonregenerating control muscle.

PMID:
1311614
DOI:
10.1002/aja.1001930106
[Indexed for MEDLINE]
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