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Immunol Lett. 2002 Oct 1;83(3):163-9.

Regulation on maturation and function of dendritic cells by Ganoderma lucidum polysaccharides.

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Department of Pharmacology, Peking University Health Science Center, 38 Xueyuan Road, Beijing 100083, People's Republic of China.


Ganoderma lucidum polysaccharides (Gl-PS) exhibits a variety of immunomodulatory activities, and dendritic cells (DC) are professional antigen presenting cells, which are pivotal for initiation of primary immune response. In this study, the regulatory effects of Gl-PS on maturation and function of cultured murine bone marrow derived DC were investigated in vitro. Gl-PS (0.8, 3.2, or 12.8 microg/ml) could increase the co-expression of CD11c and I-A/I-E molecules on DC surface, promote mRNA expression of cytokine IL-12 p40 in DC and augment protein production of IL-12 P40 in culture supernatants. The lymphocyte proliferation of mixed lymphocyte culture (MLC) induced by mature DC was enhanced by Gl-PS, either. Gl-PS was shown to promote not only the maturation of cultured murine bone marrow derived DC in vitro, but also the immune response initiation induced by DC.

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