期刊
BIOMOLECULES
卷 11, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/biom11121777
关键词
Lentinula edodes; selenium; polysaccharide; immunosuppressant
资金
- National Science Centre, Poland [DEC-2013/09/B/NZ7/03978]
- Medical University of Warsaw
The study revealed the significant immunosuppressive activity of the Lentinula edodes-derived Se-Le-30 fraction on human immune cells, showing inhibition of proliferation in PBMCs, down-regulation of inflammatory cytokine production in T cells, and reduction in cytotoxicity of NK cells.
A common edible mushroom Lentinula edodes, is an important source of numerous biologically active substances, including polysaccharides, with immunomodulatory and antitumor properties. In the present work, the biological activity of the crude, homogenous (Se)-enriched fraction (named Se-Le-30), which has been isolated from L. edodes mycelium by a modified Chihara method towards human peripheral blood mononuclear cells (PBMCs) and peripheral granulocytes, was investigated. The Se-Le-30 fraction, an analog of lentinan, significantly inhibited the proliferation of human PBMCs stimulated with anti-CD3 antibodies or allostimulated, and down-regulated the production of tumor necrosis factor (TNF)-alpha by CD3+ T cells. Moreover, it was found that Se-Le-30 significantly reduced the cytotoxic activity of human natural killer (NK) cells. The results suggested the selective immunosuppressive activity of this fraction, which is non-typical for mushroom derived polysaccharides.
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