Proliferation/differentiation of osteoblastic human alveolar bone cell cultures in the presence of stainless steel corrosion products

• Tipo: Artigo em Revista Científica Internacional
• Data: 2000

Autores

Costa, MA (Autor) ICBAS; Fernandes MH (Autor) FMDUP

Revista

Título: Journal of Materials Science: Materials in Medicine

Vol. 11

Páginas: 141-153

ISSN: 0957-4530

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 30 Citações

Scopus - 31 Citações

Outras Informações

ID Authenticus: P-001-0QH

DOI: 10.1023/a:1008975507654

Abstract (EN): Human osteoblastic alveolar bone cells were cultured for 28 days in control conditions and in the presence of three non-lethal concentrations of AISI 316L stainless steel (SS) corrosion products. Cells were exposed to SS corrosion products in two experimental situations: (i) in selected stages of the incubation time (during the first, second, third and fourth week of culture); and (ii) during the 28 days incubation period. Cultures were characterized for cell proliferation, total protein content, alkaline phosphatase activity (ALP) and ability to form mineralized deposits; culture media was analyzed for ionized calcium (Ca) and phosphorus (P) concentrations throughout the incubation period. The presence of SS corrosion products during the different stages of the incubation period did not significantly affect the cell proliferation; however, a significant dose-dependent deleterious effect was observed on the levels and pattern of ALP activity, concentration of ionized Ca and P in the culture medium and, also, ability to form mineralized deposits, especially in cultures exposed during the first and second week of culture (respectively, lag phase and exponential cell growth phase). Similar effects were observed in cultures exposed to the SS corrosion products during the 28 days incubation period. However, the presence of such products during the third week (when the mineralization process occurs) and, also, during the fourth week, resulted in little or no significant effects on the behavior of alveolar bone cells. Results suggested that SS corrosion products above certain non-lethal concentrations may disturb the proliferation/differentiation relationship of osteoblastic human alveolar bone cell cultures. (C) 2000 Kluwer Academic Publishers.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 13