The effects of dietary lipid manipulation on the production of murine T cell-derived cytokines.
Lymphocytes play an important part in the development and progression of a number of autoimmune and inflammatory disorders, which are characterized by the presence of activated T cells and cytokines at the site of tissue injury and in the circulation. There has been considerable interest in using dietary polyunsaturated fatty acids (PUFA), particularly the n-3 PUFA found in fish oils, in the therapy of these conditions; such therapies aim, primarily, to suppress T-lymphocyte activity. While several studies have investigated the effects of fatty acids on the production of monocyte- and macrophage-derived cytokines, few have investigated their effects on the production of T cell-derived cytokines. Each of these studies have been restricted to IL-2 and have produced results which are not entirely clear. Moreover, there have been no studies to investigate the effects of dietary lipids other than fish oils on IL-2 production or the effects of dietary lipids on lymphokines other than IL-2. To investigate the effects of dietary lipid manipulation on the production of IL-2, IL-4, IL-10 and IFN-gamma by lymphocytes, mice were fed for 8 weeks on a low fat (LF) diet or one of 4 high fat diets, which contained 20% (by weight) hydrogenated coconut oil (HCO), olive oil (OO), safflower oil (SO) or menhaden oil (MO). Culture medium of lymphocytes from mice fed the OO or SO diets contained significantly more IL-2 than that of lymphocytes from mice fed the LF or HCO diets.(ABSTRACT TRUNCATED AT 250 WORDS)
Yaqoob
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P
Department of Biochemistry, University of Oxford.
Calder
P C
PC
D000818:Animals; D004042:Dietary Fats, Unsaturated / Q000494:pharmacology*; D007371:Interferon-gamma / Q000096:biosynthesis*; D016753:Interleukin-10 / Q000096:biosynthesis; D007376:Interleukin-2 / Q000096:biosynthesis; D015847:Interleukin-4 / Q000096:biosynthesis; D007378:Interleukins / Q000096:biosynthesis*; D008055:Lipids / Q000494:pharmacology*; D008297:Male; D051379:Mice; D013601:T-Lymphocytes / Q000378:metabolism*
D004042:Dietary Fats, Unsaturated; D007376:Interleukin-2; D007378:Interleukins; D008055:Lipids; D016753:Interleukin-10; D015847:Interleukin-4; D007371:Interferon-gamma