Local injection of high-molecular hyaluronan promotes wound healing in old rats by increasing angiogenesis

Impaired angiogenesis contributes to delayed wound healing in aging. Hyaluronan (HA) has a close relationship with angiogenesis and wound healing. However, HA content decreases with age. In this study, we used high molecular weight HA (HMW-HA) (1650 kDa), and investigated its effects on wound healin...

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Detalles Bibliográficos
Autores principales: Huang, Luying, Wang, Yi, Liu, Hua, Huang, Jianhua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Impact Journals LLC 2017
Materias:
Research Paper: Gerotarget (Focus on Aging)
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5823590/
https://www.ncbi.nlm.nih.gov/pubmed/29492191
http://dx.doi.org/10.18632/oncotarget.23246
Descripción
Sumario:Impaired angiogenesis contributes to delayed wound healing in aging. Hyaluronan (HA) has a close relationship with angiogenesis and wound healing. However, HA content decreases with age. In this study, we used high molecular weight HA (HMW-HA) (1650 kDa), and investigated its effects on wound healing in old rats by local injection. We found that HMW-HA significantly increases proliferation, migration and tube formation in endothelial cells, and protects endothelial cells against apoptosis. Local injection of HMW-HA promotes wound healing by increasing angiogenesis in old rats. HMW-HA increases the phosphorylation of Src, ERK and AKT, leading to increased angiogenesis, suggesting that local injection of HMW-HA promotes wound healing in elderly patients.

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