EFFECTS OF BROWN SEAWEED POLYSACCHARIDE ON LYMPHOCYTE FUNCTION AND CYTOKINES PRODUCTION / 营养学报

ABSTRACT

Objective: To investigate the effects of BSP on lymphocyte function and cytokines production in normal and immunosuppressed mice.Methods: The lymphocyte proliferation response, T lymphocyte subpopulations and IL 2 production were measured after intraperitoneal injection of BSP in normal and immunosuppressed mice, and the activity of IL 1 and TNF secreted by mouse peritoneal macrophages were detected after BSP supplementation in vitro.Results: (1)BSP〔(100 mg/(kg?d)?10 d)〕markedly improved T,B lymphocyte proliferation responses and IL 2 production in normal and immunosuppressed mice, and significantly increased the number of L 3T + 4 cells in thymus and spleen of immunosuppressed mice, and the ratio of L 3T + 4/Lyt 2 + cells was also increased.(2)BSP distinctly enhanced the activity of IL 1 and TNF production by mouse peritoneal macrophages in vitro.Conclusion: BSP can improve the immunological function of normal and immunosuppressed mice.