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Estudo da interação entre células endoteliais humanas e biomateriais utilizados em cirurgia buco-maxilo-facial / Interaction of human endothelial cells with biomaterials applied on maxillo-facial surgery
São Paulo; s.n; 2003. 106 p. ilus, graf.
Thesis in Portuguese | LILACS | ID: lil-408885
RESUMO
Neste estudo procuramos analisar a interação entre células endoteliais humanas e biomateriais utilizados em cirurgia oral, através de análises histológicas e ensaios imunocitoquímicos. Culturas primárias foram isoladas de veias de cordões umbilicais humanos. As células foram semeadas, em densidade determinada, sobre secções circulares de membrana colágena, placas de titânio e controles; foram mantidas por 1, 7 ou 14 dias. As células proliferaram, atingiram confluência e após 14 dias formaram camada plana e uniforme. Os resultados demonstraram que os materiais estudados permitem a proliferação e a adesão das células endoteliais. Esta adesão é mediada pela interação de integrinas e proteínas.With the present investigation, we examined the behavior of endothelial cells on two different biomaterials, using histological and immunocitochemical methods. The endothelial cells were isolated from umbilical cord veins. Cells, after two passages, were seeded in a standard density on a collagen membrane, on commercially pure titanium in the form of plates and on control surfaces. Then these were maintained for 1, 7 or 14 days. After 14 days, we could observe a confluent monolayer of cells. Our results showed that both studied materials support endothelial cells growth and attachment and this is most related to the binding through integrins and proteins...
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Index: LILACS (Americas) Main subject: Titanium / Umbilical Veins / Biocompatible Materials / Endothelium, Vascular / Cell Adhesion Molecules / Collagen Limits: Humans Language: Portuguese Year: 2003 Type: Thesis

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Index: LILACS (Americas) Main subject: Titanium / Umbilical Veins / Biocompatible Materials / Endothelium, Vascular / Cell Adhesion Molecules / Collagen Limits: Humans Language: Portuguese Year: 2003 Type: Thesis