High passage numbers induce resistance to apoptosis in C2C12 muscle cells



Título del documento: High passage numbers induce resistance to apoptosis in C2C12 muscle cells
Revista: Biocell
Base de datos: PERIÓDICA
Número de sistema: 000395130
ISSN: 0327-9545
Autors: 1
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Institucions: 1Universidad Nacional del Sur, Departamento de Biología, Bioquímica y Farmacia, Bahía Blanca, Buenos Aires. Argentina
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Període: Abr
Volum: 37
Número: 1
Paginació: 1-9
País: Argentina
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés Cell lines with high passage numbers exhibit alterations in cell morphology and functions. In the present work, C2C12 skeletal muscle cells with either low (<20) or high (>60) passage numbers (identified as l- C2C12 or h-C2C12, respectively) were used to investigate the apoptotic response to H 2 O 2 as a function of culture age h-C2C12. We found that older cultures (h-C2C12 group) were depleted of mitochondrial DNA (mtDNA). When we analyzed the behavior of Bad, Bax, caspase-3 and mitochondrial transmembrane potential, we observed that cells in the h-C2C12 group were resistant to H 2 O 2 induction of apoptosis. We propose serially cultured C2C12 cells as a refractory model to H 2 O 2 -induced apoptosis. In addition, the data obtained in this work suggest that mtDNA is required for apoptotic cell death in skeletal muscle C2C12 cells
Disciplines Biología
Paraules clau: Anatomía e histología,
Biología celular,
Genética,
Líneas celulares,
Músculo esquelético,
Apoptosis,
ADN mitocondrial,
Cultivo de células
Keyword: Biology,
Anatomy and histology,
Cell biology,
Genetics,
Cell lines,
Skeletal muscle,
Apoptosis,
Mitochondrial DNA,
Cell culture
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