Involvement of novel PKC isoforms in FFA induced defects in insulin signaling

Involvement of novel PKCs (nPKCs) in the negative regulation of insulin-signaling pathway is a current interest of many workers investigating the cause for insulin resistance and type 2 diabetes. Free fatty acids (FFAs) are recently shown to be the major players in inducing insulin resistance in insulin target cells. They are also found to be involved in activating nPKCs associated with the impairment of insulin sensitivity. In this overview, we describe PKC δ, θ and ɛ linked to the FFA induced damage of insulin-signaling molecules.