The ability of astaxanthin to inhibit the growth of colon cancer cells was studied at Catholic University School of Medicine in Rome, Italy. Astaxanthin inhibited cell growth in a dose and time dependent manner by arresting cell cycle progression and by promoting the death of cancerous cells. Astaxanthin resulted in a 220% increase in the expression of the well known anti-cancer gene p 53, and a 160% and 250% increase respectively in the anti-cancer genes p21 and p27. Astaxanthin strongly upregulated apoptosis through gene modification, and increased phosphoylation of the p38, JNK, and ERK1/2 genes by 160%, 242%, and 280% respectively. Growth inhibitory effects of astaxanthin were also observed in HT-29, LS-174, WiDr, and Sw-480 cells. These results document axtaxanthin as highly effective against colon cancer. (Cancer Letter, May 5)
Learn more: http://www.naturalnews.com/026309_astaxanthin_cancer_research.html##ixzz2sTSPBd1q
Benefits of astaxanthin. In the particular quote we see it seems that this antioxidant exhibits anticancer activity, which is good to know as not all antioxidants seem to do so.
In Caenorhabditis elegans (Nematodes, used to research metabolic pathways of longevity[37][38]), 0.1-1mM of astaxanthin is able to increase lifespan by 16-30% in all nematodes except the DAF-16 deficient ones.[39] This enhanced lifespan was associated with increased nuclear accumulation of DAF-16 (the nuclear target of the Ins/IGF-1 signalling pathway[40]) and increased antioxidant defenses which were thought to be due to DAF-16 gene product expression (superoxide dismutase enzymes in particular[41]).[39]http://examine.com/supplements/Astaxanthin/
It seems the substance can increase lifespan in some invertebrates.
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