TY - JOUR
T1 - Role of gene regulation in the anticancer activity of carotenoids
AU - Sharoni, Yoav
AU - Danilenko, Michael
AU - Walfisch, Shlomo
AU - Amir, Hadar
AU - Nahum, Amit
AU - Ben-Dor, Anat
AU - Hirsch, Keren
AU - Khanin, Marina
AU - Steiner, Michael
AU - Agemy, Lilach
AU - Zango, Gabriel
AU - Levy, Joseph
PY - 2002/1/1
Y1 - 2002/1/1
N2 - There is extensive evidence that high intake of fruits and vegetables is associated with decreased risk of many types of cancers. Thus, it is widely accepted that diet changes are a powerful means to prevent cancer. Although there is a growing interest in the role of the tomato carotenoid lycopene in cancer prevention and treatment, we hypothesize that a single micronutrient cannot replace the power of the concerted action of multiple agents derived from a diet rich in fruits and vegetables. Indeed, we found that lycopene can synergize with other phytonutrients in the inhibition of cancer cell growth. The mechanism underlying the inhibitory effects of lycopene and other carotenoids involves interference in several pathways related to cancer cell proliferation and includes changes in the expression of many proteins participating in these processes, such as connexins, cyclins, cyclin-dependent kinases, and their inhibitors. These changes in protein expression suggest that the initial effect involves modulation of transcription by ligand-activated nuclear receptors or by other transcription factors. It is feasible to suggest that carotenoids and their oxidized derivatives interact with a network of transcription systems that are activated by different ligands at low affinity and specificity and that this activation leads to the synergistic inhibition of cell growth.
AB - There is extensive evidence that high intake of fruits and vegetables is associated with decreased risk of many types of cancers. Thus, it is widely accepted that diet changes are a powerful means to prevent cancer. Although there is a growing interest in the role of the tomato carotenoid lycopene in cancer prevention and treatment, we hypothesize that a single micronutrient cannot replace the power of the concerted action of multiple agents derived from a diet rich in fruits and vegetables. Indeed, we found that lycopene can synergize with other phytonutrients in the inhibition of cancer cell growth. The mechanism underlying the inhibitory effects of lycopene and other carotenoids involves interference in several pathways related to cancer cell proliferation and includes changes in the expression of many proteins participating in these processes, such as connexins, cyclins, cyclin-dependent kinases, and their inhibitors. These changes in protein expression suggest that the initial effect involves modulation of transcription by ligand-activated nuclear receptors or by other transcription factors. It is feasible to suggest that carotenoids and their oxidized derivatives interact with a network of transcription systems that are activated by different ligands at low affinity and specificity and that this activation leads to the synergistic inhibition of cell growth.
UR - http://www.scopus.com/inward/record.url?scp=0036695557&partnerID=8YFLogxK
U2 - 10.1351/pac200274081469
DO - 10.1351/pac200274081469
M3 - Article
AN - SCOPUS:0036695557
SN - 0033-4545
VL - 74
SP - 1469
EP - 1477
JO - Pure and Applied Chemistry
JF - Pure and Applied Chemistry
IS - 8
ER -