Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/194788
Type: Artigo de periódico
Title: Vero Cell Growth And Differentiation On Poly(l-lactic Acid) Membranes Of Different Pore Diameters.
Author: Santos, A R
Barbanti, S H
Duek, E A
Dolder, H
Wada, R S
Wada, M L
Abstract: In the last few years, the demand has increased for research on polymeric materials, which can be used as substitutes for injured tissues and organs or to improve their regeneration. In this work, we studied poly(L-lactic acid) (PLLA) membranes, a resorbable biomaterial, which were either dense or had different pore diameters (less than 45 microm, between 180 and 250 microm, and between 250 and 350 microm), in relation to stimulation of cell adhesion, growth, and differentiation in vitro. We used Vero cells, a fibroblastic cell line, as the biological model of investigation. We found that cells attached slowly to all PLLA membranes studied. On the other hand, once the adhesion occurs, the cells are able to grow and differentiate on the different polymers. The cells grew to form a confluent monolayer and were capable of producing collagen Type IV and fibronectin on different PLLA membranes. This behavior indicates that cells try to create a better environment to stimulate their growth. This also indicates that Vero cells alter their differentiation pattern once they are producing extracellular matrix molecules related to epithelial differentiation.
Subject: Absorbable Implants
Animals
Biocompatible Materials
Cell Adhesion
Cell Differentiation
Cell Division
Cercopithecus Aethiops
Collagen
Fibroblasts
Fibronectins
Immunohistochemistry
Lactic Acid
Membranes, Artificial
Microscopy, Electron, Scanning
Polymers
Porosity
Vero Cells
Rights: fechado
Identifier DOI: 
Address: http://www.ncbi.nlm.nih.gov/pubmed/11167553
Date Issue: 2001
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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