Inhibition of myoblast migration via decorin expression is critical for normal skeletal muscle differentiation

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dc.contributor.authorOlguin, HC
dc.contributor.authorSantander, C
dc.contributor.authorBrandan, E
dc.date.accessioned2025-01-21T01:09:10Z
dc.date.available2025-01-21T01:09:10Z
dc.date.issued2003
dc.description.abstractDuring limb skeletal muscle formation, committed muscle cells proliferate and differentiate in the presence of extracellular signals that stimulate or repress each process. Proteoglyeans are extracellular matrix organizers and modulators of growth factor activities, regulating muscle differentiation in vitro. Previously, we characterized proteoglycan expression during early limb muscle formation and showed a spatiotemporal relation between the onset of myogenesis and the expression of decorin, an important muscle extracellular matrix component and potent regulator of TGF-beta activity. To evaluate decorin's role during in vivo differentiation in committed muscle cells, we grafted wild type and decorin-null myoblasts onto chick limb buds. The absence of decorin enhanced the migration and distribution of myoblasts in the limb, correlating with the inhibition of skeletal muscle differentiation. Both phenotypes were reverted by de novo decorin expression. In vitro, we determined that both decorin core protein and its glycosaminoglycan chain were required to reverse the migration phenotype. Results presented here suggest that the enhanced migration observed in decorin-null myoblasts may not be dependent on chemotactic growth factor signaling nor the differentiation status of the cells. Decorin may be involved in the establishment and/or coordination of a critical myoblast density, through inhibition of migration, that permits normal muscle differentiation during embryonic myogenesis. (C) 2003 Elsevier Science (USA). All rights reserved.
dc.fuente.origenWOS
dc.identifier.doi10.1016/S0012-1606(03)00180-5
dc.identifier.issn0012-1606
dc.identifier.urihttps://doi.org/10.1016/S0012-1606(03)00180-5
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/96554
dc.identifier.wosidWOS:000184373300002
dc.issue.numero2
dc.language.isoen
dc.pagina.final224
dc.pagina.inicio209
dc.revistaDevelopmental biology
dc.rightsacceso restringido
dc.subjectdecorin
dc.subjectECM
dc.subjectskeletal muscle
dc.subjectlimb myogenesis
dc.subjectproteoglycans
dc.subjectmyosin
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleInhibition of myoblast migration via decorin expression is critical for normal skeletal muscle differentiation
dc.typeartículo
dc.volumen259
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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