Resveratrol enhances 5-fluorouracil-induced apoptosis of osteosarcoma CD133+ cell subset by promoting formation of Apaf-1/caspase-9 complex / 中国病理生理杂志
Chinese Journal of Pathophysiology
;
(12): 1196-1202, 2017.
Artigo
em Chinês
| WPRIM
| ID: wpr-616567
ABSTRACT
AIM:
To investigate the synergistic effect of resveratrol and 5-fluorouracil on osteosarcoma CD133+ cell subset.METHODS:
Human osteosarcoma cell line MG-63 CD133+ cell subset and the corresponding CD133-cell subset were treated with resveratrol and 5-fluorouracil.After treatment, the viability of MG-63 cells was measured by MTT assay.The apoptosis of MG-63 cells was analyzed by flow cytometry.Activation of caspase-9 and caspase-3, the expression of Apaf-1, and the release of cytochrome C were evaluated by Western blot.The interaction between Apaf-1 and pro-caspase-9 was detected by co-immunoprecipitation.RESULTS:
The cell death and apoptosis of MG-63 CD133+ cell subset induced by 5-fluorouracil were significantly weaker than those in the corresponding MG-63 CD133-cell subset.However, co-treatment with resveratrol significantly enhanced the effect of 5-fluorouracil on inhibiting the viability of MG-63 CD133+ cell subset.Mechanically, treatment with resveratrol upregulated the expression of Apaf-1.Transfection with Apaf-1 siRNA abolished the synergistic effect of resveratrol and 5-fluorouracil in MG-63 CD133+ cell subset.In addition, the results of co-immunoprecipitation indicated that the combination of resveratrol and 5-fluorouracil significantly induced the formation of Apaf-1/pro-caspase-9 complex, leading to the activation of caspase-9 in MG-63 CD133+ cell subset.CONCLUSION:
Resveratrol enhances 5-fluorouracil-induced apoptosis of osteosarcoma CD133+ cell subset by promoting the formation of Apaf-1/caspase-9 complex.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Journal of Pathophysiology
Ano de publicação:
2017
Tipo de documento:
Artigo
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