14-3-3ε protein-immobilized PCL-HA electrospun scaffolds with enhanced osteogenicity

Adipose-derived mesenchymal stem cells (ASCs) accelerate the osteointegration of bone grafts and improve the efficiency in the formation of uniform bone tissue, providing a practical and clinically attractive approach in bone tissue regeneration. In this work, the effect of nanofibrous biomimetic ma...

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Detalhes bibliográficos
Autores: Rivero, Guadalupe, Aldana, Ana Agustina, Frontini López, Yesica Romina, Liverani, L., Boccacini, A. R., Bustos, Diego Martin, Abraham, Gustavo Abel
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2019
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositório:CONICET Digital (CONICET)
Idioma:inglês
OAI Identifier:oai:ri.conicet.gov.ar:11336/118907
Acesso em linha:http://hdl.handle.net/11336/118907
Access Level:Acceso aberto
Palavra-chave:PROTEIN INMOBILIZATION
ELECTROSPUN MEMBRANES
COMPOSITES
SCAFFOLDS
https://purl.org/becyt/ford/2.9
https://purl.org/becyt/ford/2
Descrição
Resumo:Adipose-derived mesenchymal stem cells (ASCs) accelerate the osteointegration of bone grafts and improve the efficiency in the formation of uniform bone tissue, providing a practical and clinically attractive approach in bone tissue regeneration. In this work, the effect of nanofibrous biomimetic matrices composed of poly(ε-caprolactone) (PCL), nanometric hydroxyapatite (nHA) particles and 14-3-3 protein isoform epsilon on the initial stages of human ASCs (hASCs) osteogenic differentiation was investigated. The cells were characterized by flow cytometry and induction to differentiation to adipogenic and osteogenic lineages. The isolated hASCs were induced to differentiate to osteoblasts over all scaffolds,and adhesion and viability of the hASCs were found to be similar. However, the activity of alkaline phosphatase (ALP) as early osteogenic marker in the PCL-nHA/protein scaffold was four times higher than in PCL-nHA and more than five times than the measured in neat PCL.