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Wei Sheng Yan Jiu. 2007 Sep;36(5):575-8.

[Effect of lycopene on proliferation and cell cycle of hormone refractory prostate cancer PC-3 cell line].

[Article in Chinese]

Author information

1
West China School of Public Health, Sichuan University, Chengdu 610041, China. aihong-wang@sohu.com

Abstract

OBJECTIVE:

To investigate the effects of lycopene on proliferation of human prostate cancer cell line PC-3 and explore its effecting mechanism.

METHODS:

The proliferation of PC-3 cells were analyzed by MTT and H3-TdR incorporation. The effects of cell cycle and apoptosis of synchronized cells were observed through flow cytometry. RT-PCR methods were used to explore the mRNA expression level of cyclin D1, bcl-2, bax.

RESULTS:

The growth and DNA synthesis of PC-3 cell were inhibited with the lycopene concentration increased, and lycopene also could change the cell cycle distribution, i. e. increasing the proportion of G0/G1 phase and descending the proportion of S and G2/M phase, and induce the apoptosis. RT-PCR analysis showed that the mRNA expression level of cyclin D1 and bcl-2 were down regulated, while the level of bax was up regulated.

CONCLUSION:

Lycopene can induce apoptosis of PC-3, change the cell cycle distribution and downregulate the expression of cyclin D1 and bcl-2 and upregulate the expression of bax and then restrain cell proliferation.

PMID:
18095570
[Indexed for MEDLINE]

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