Journal
NUTRITION AND CANCER-AN INTERNATIONAL JOURNAL
Volume 63, Issue 2, Pages 256-263Publisher
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.1080/01635581.2011.523494
Keywords
-
Categories
Funding
- American Institute for Cancer Research [05A021]
- College of Agricultural, Consumer, and Environmental Sciences at the University of Illinois
- USDA [2005-03750]
- NATIONAL CANCER INSTITUTE [R01CA125384] Funding Source: NIH RePORTER
Ask authors/readers for more resources
Lycopene is associated with a reduced risk of prostate cancer. However, lycopene may not be wholly responsible for the effects seen in vivo or in cell culture systems. Apo-lycopenals or other lycopene metabolites, whether produced by cleavage enzymes within the body or consumed with tomato products, can be found in tissues at concentrations equivalent to physiological retinoid concentrations. Therefore, it is plausible that lycopenoids, like retinoids, are bioactive within tissues. Androgen-independent DU145 prostate cancer cells were treated with lycopene, apo-8'-lycopenal, or apo-12'-lycopenal. DU145 cell proliferation was significantly reduced by supra-physiological levels of lycopene and apo-12'-lycopenal, in part, through alteration of the normal cell cycle. Levels of the gap junction protein, connexin 43, were unaltered by lycopene or apo-lycopenal treatment while cell apoptosis rates significantly decreased. We further confirmed that connexin 43 protein levels were unaltered by lycopene treatment in mouse embryonic fibroblasts, or in Dunning R3327-H rat prostate tumor. The present data indicate that lycopene and apo-12'-lycopenal reduce the proliferation of prostate cancer cells, in part, by inhibiting normal cell cycle progression.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available