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Lipid Extract from Completely Sporoderm-broken Germinating Ganoderma sinensis Spores Elicits Potent Antitumor Immune Responses in Human Macrophages
Sun Yat Sen University.
Sun Yat Sen University.
Sun Yat Sen University.
Linköping University, Department of Clinical and Experimental Medicine, Medical Microbiology . Linköping University, Faculty of Health Sciences.
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2009 (English)In: PHYTOTHERAPY RESEARCH, ISSN 0951-418X, Vol. 23, no 6, 844-850 p.Article in journal (Refereed) Published
Abstract [en]

Ganoderma sinensis has been used widely in Oriental countries for the prevention and treatment of various diseases including cancer. Previous studies have shown that the lipid extract from Ganoderma exhibits direct cytotoxicity against tumor cells. Here, it is reported that the lipid extract from germinating G. sinensis spores, at lower concentrations that have no direct tumoricidal activity, induce potent antitumor immune responses in human monocytes/macrophages. Upon stimulation with the lipid extract, monocytes/macrophages exhibited markedly increased production of proinflammatory cytokines and surface expression of costimulatory molecules. Conditioned medium from stimulated cells effectively suppressed the growth of tumor cells. Apparently, the lipid extract triggered macrophage activation via a mechanism different from that associated with LPS. Moreover, it was observed that the lipid extract could partially re-establish the antitumor activity of the immunosuppressive tumor-associated macrophages. These results indicated that in addition to its direct tumoricidal activity, the lipid extract from G. sinensis spores could exert antitumor activity by stimulating the activation of human monocytes/macrophages.

Place, publisher, year, edition, pages
2009. Vol. 23, no 6, 844-850 p.
Keyword [en]
antitumor immune response, human monocytes/macrophages, lipid extract, germination, Ganoderma sinensis spore
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-19619DOI: 10.1002/ptr.2707OAI: diva2:226722
Available from: 2009-07-03 Created: 2009-07-03 Last updated: 2009-07-03

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Magnusson, Karl-Eric
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Medical Microbiology Faculty of Health Sciences
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