Role of Bcl-2 Phosphorylation in mediating paclitaxel induced-apoptosis in hum an retinoblastoma Y79 cells / 中国癌症杂志
China Oncology
;
(12)2000.
Artigo
em Chinês
| WPRIM
| ID: wpr-540557
ABSTRACT
Purpose:
To investigate palitaxel (Tax) induct io n of apoptosis in human retinoblastoma Y79 cells and the role of Bcl-2 phosphor ylation in the mechanism.Methods:
Antiproliferation effects of Tax on Y79 cells were dete rmined by 3H-thymidine incorporation. Apoptosis of the Tax-treated cells was determined by DNA fragmentation analysis. Bcl-2 phosphorylation was determ ined by Western blot analysis. Cell transfection was used in mutant Bcl-2 trans fecting in Y79 cells.Results:
After 24 hours treatment with 1 ?mol/L Tax, 3H- thymidine incorporation decreased in Y79 cells and the effects were time and dos e dependent. DNA ladder appeared in DNA fragmantation analysis after 12-24 hour s treatment with Tax. Bcl-2 Phosphorylation was significantly increased in 12- 24 hours treatment with Tax. Bcl-2, a mutant of Bcl-2, blocked Tax activation process.Conclusions:
Tax inhibits cell growth and induces apoptosis in h uman Y79 cells, and phosphorylation of Bcl-2 might be involved in this process.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
China Oncology
Ano de publicação:
2000
Tipo de documento:
Artigo
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