栄養と免疫機能 : 非必須栄養素，低栄養状態，過栄養状態と免疫

It is known that nutritional state crucially affects immune function. In recent years, the contributionof the diet to the optimal working of the immune system has become wildly appreciatedand the influence of different dietary components on specific aspects of immune function has beenextensively studied. Soy isoflavone genistein suppresses antigen-specific immune response inBALB/c mice and suppresses development of atopic-like dermatitis in NC/Nga mice. In other soyisoflavone equol enhances antigen-specific IgE production via IL-13-mediated pathway. Further,equol exacerbates colitis of dextran sulfate sodium-treated mice. Therefore, immune stimulatoryeffects are strikingly different among soy isoflavones. In this reviews, in addition of the isoflavone,we overview the effects of dietary nucleic acid and protein-deficiency on antigen-specific immuneresponses. Furthermore, we present hot topics researches in the field of obesity and T cellfunction.