Fibronectin-derived Epiviosamines enhance PDGF-BB-stimulated human dermal fibroblast migration in vitro and granulation tissue formation in vivo.
Wound Repair Regen
; 27(6): 634-649, 2019 11.
Article
em En
| MEDLINE
| ID: mdl-31219655
ABSTRACT
Fibronectin (FN) is a multimodular glycoprotein that is a critical component of the extracellular matrix (ECM) anlage during embryogenesis, morphogenesis, and wound repair. Our laboratory has previously described a family of FN-derived peptides collectively called "epiviosamines" that enhance platelet-derived growth factor-BB (PDGF-BB)-driven tissue cell survival, speed burn healing, and reduce scarring. In this study, we used an agarose drop outmigration assay to report that epiviosamines can enhance PDGF-BB-stimulated adult human dermal fibroblast (AHDF) outmigration in a dose-dependent manner. Furthermore, these peptides can, when delivered topically, stimulate granulation tissue formation in vivo. A thiol-derivatized hyaluronan hydrogel cross-linked with polyethyleneglycol diacrylate (PEGDA) was used to topically deliver a cyclized epiviosamine cP12 and a cyclized engineered variant of cP12 termed cNP8 to porcine, full-thickness, excisional wounds. Both cP12 and cNP8 exhibited dose-dependent increases in granulation tissue formation at day 4, with 600 µM cNP8 significantly enhancing new granulation tissue compared to vehicle alone. In contrast to previous studies, this study suggests that epiviosamines can be used to increase granulation tissue formation without an exogenous supply of PDGF-BB or any cell-binding peptides. Thus, epiviosamine may be useful topically to increase granulation tissue formation in acute wounds.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Ferimentos e Lesões
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Movimento Celular
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Fibronectinas
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Proteínas Proto-Oncogênicas c-sis
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Tecido de Granulação
Tipo de estudo:
Diagnostic_studies
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Prognostic_studies
Limite:
Adult
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Animals
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Female
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Humans
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Male
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article