Alterations in Mitochondrial Membrane in Chemopreventive Action of Fish Oil
Menée ex vivo sur des colocytes murins, cette étude évalue, dans le cadre de la chimioprévention d'une carcinogenèse du côlon induite par des agents cancérigènes, les effets de divers ratios huile de poisson / huile de maïs en supplémentation sur les membranes mitochondriales
Mitochondria are major regulators of pathways related to tumorigenesis; therefore, mitochondrial membrane characteristics and associated cell signaling events were evaluated with different ratios of fish oil (FO) and corn oil (CO) in experimental colon carcinogenesis. Treatment with carcinogen 1,2-dimethylhydrazine (DMH) altered reactive oxygen species (ROS), Ca2+, and membrane characteristics, which resulted in an elevation in apoptosis in initiation phase and reduction in post-initiation phase. FO+CO(2.5:1)+DMH treatment, however, altered mitochondrial membrane parameters, ROS, and Ca2+ to increase apoptosis in both phases, whereas FO+CO(1:1)+DMH treatment enhanced apoptosis only in post-initiation phase suggesting that FO supplementation in higher ratio has better chemopreventive efficacy. Read More: http://informahealthcare.com/doi/abs/10.3109/07357907.2013.780076