Zhongguo Zhong xi yi jie he za zhi Zhongguo Zhongxiyi jiehe zazhi = Chinese journal of integrated traditional and Western medicine · 2009
[Effect of cinobufagin on the expressions of bcl-2 mRNA and bax mRNA and the proliferation of lens epithelial cells].
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Wang Ting-Ting, Xu Guo-Xing
Аннотация
OBJECTIVE: To investigate the effect of cinobufagin on the proliferation of lens epithelial cells (LECs) and the bcl-2 and bax mRNA expressions of rabbits.
METHODS: Cultured LECs were treated for 72 h with cinobufagin of different concentrations, the end titer was 0.1 mg/L for low, 0.2 mg/L for moderate and 0.3 mg/L for high concentration, respectively. The inhibitory rate of cinobufagin on LECs' proliferation was detected using MTT method; the mRNA expressions of bcl-2 and bax genes in LECs were examined using reverse transcription-polymerase chain reaction (RT-PCR).
RESULTS: Proliferation of LECs was inhibited significantly by cinobufagin in a concentration dependent manner, the inhibitory rate was 24.65%, 30.13% and 36.98% respectively for low, moderate and high concentration. With the drug concentration increasing, the mRNA expression levels of the pro-apoptotic bax were increased, whereas those of the anti-apoptotic bcl-2 decreased.
CONCLUSION: Cinobufagin can remarkably inhibit the proliferation and induce the apoptosis of LECs in vitro, it might be taken as one of the drugs for the prevention and treatment of after-cataract.
METHODS: Cultured LECs were treated for 72 h with cinobufagin of different concentrations, the end titer was 0.1 mg/L for low, 0.2 mg/L for moderate and 0.3 mg/L for high concentration, respectively. The inhibitory rate of cinobufagin on LECs' proliferation was detected using MTT method; the mRNA expressions of bcl-2 and bax genes in LECs were examined using reverse transcription-polymerase chain reaction (RT-PCR).
RESULTS: Proliferation of LECs was inhibited significantly by cinobufagin in a concentration dependent manner, the inhibitory rate was 24.65%, 30.13% and 36.98% respectively for low, moderate and high concentration. With the drug concentration increasing, the mRNA expression levels of the pro-apoptotic bax were increased, whereas those of the anti-apoptotic bcl-2 decreased.
CONCLUSION: Cinobufagin can remarkably inhibit the proliferation and induce the apoptosis of LECs in vitro, it might be taken as one of the drugs for the prevention and treatment of after-cataract.