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Master's Dissertation
DOI
https://doi.org/10.11606/D.23.2006.tde-28082006-184500
Document
Author
Full name
Giovane Hisse Gomes
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2006
Supervisor
Committee
Romito, Giuseppe Alexandre (President)
Lima, Luiz Antonio Pugliesi Alves de
Nociti Junior, Francisco Humberto
Title in Portuguese
Avaliação in vitro da citotoxicidade do alendronato de sódio sobre osteoblastos em cultura celular
Keywords in Portuguese
Alendronato de Sódio
Cultura celular
MTT
osteoblastos
Abstract in Portuguese
O objetivo desse estudo foi avaliar a citotoxicidade do alendronato de sódio (ALN), em diferentes concentrações, sobre osteoblastos em cultura celular. Foi utilizado para o experimento meio sem droga (controle) e meio contendo a droga em diferentes concentrações a saber: 0,5; 1; 5; 10; 20 e 40 mg/ml. Para o estudo foi utilizado uma linhagem de osteoblastos de rato (Osteo-1). A viabilidade celular foi inferida a partir da análise da atividade mitocondrial das células através do método da redução do MTT nos tempos experimentais de 0, 24, 48 e 72 horas. Após análise estatística (teste de Mann-Whitney, p<0,05), os resultados mostraram que, com exceção da concentração de 40mg/ml, todos os grupos apresentaram células viáveis, embora todas as concentrações de ALN tenham reduzido a atividade mitocondrial em mais de 50% em relação ao grupo controle, sugerindo que o ALN nessas concentrações estudadas foi citotóxico para os osteoblastos.
Title in English
Citotoxicity analysis in vitro of sodium alendronate on cultured osteoblasts
Keywords in English
cell culture
MTT
osteoblasts
sodium alendronate
Abstract in English
The aim of this study was to analyze the cytotoxicity of a bisphosphonate (sodium alendronate) on rat osteoblasts. The experimental groups were GI (control) no sodium alendronate, and GII, GIII, GIV, GV, GVI, and GVII with sodium alendronate at the concentrations of 0.5, 1, 5, 10, 20, and 40mg/ml, respectively. The cell viability was evaluated by MTT assay in experimental times 0, 24, 48, and 72 h. Data were statistically analyzed. Cultures treated with sodium alendronate showed cell viability percentages significantly lower (p < 0.05) than those of the control groups. In GVII, no viable cell was observed in all experimental times. It could be concluded that sodium alendronate, on direct contact with rat osteoblasts, is cytotoxic in all concentrations studied.
 
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Publishing Date
2006-09-26
 
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