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Comment
. 2009 Apr 15;23(8):902-5.
doi: 10.1101/gad.1797009.

The origin of embryonic and fetal myoblasts: a role of Pax3 and Pax7

Graziella Messina  1 , Giulio Cossu
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The origin of embryonic and fetal myoblasts: a role of Pax3 and Pax7

Graziella Messina et al. Genes Dev. .
Free article

Abstract

Skeletal muscle is a heterogeneous tissue composed of individual muscle fibers, diversified in size, shape, and contractile protein content, to fulfill the different functional needs of the vertebrate body. This heterogeneity derives from and depends at least in part on distinct classes of myogenic progenitors; i.e., embryonic and fetal myoblasts and satellite cells whose origin and lineage relationship have been elusive so far. In this issue of Genes & Development, Hutcheson and colleagues (pp. 997-1013) provide a first answer to this question.

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