Abstract Title:

Active hexose correlated compound enhances tumor surveillance through regulating both innate and adaptive immune responses.

Abstract Source:

Cancer Immunol Immunother. 2006 Oct;55(10):1258-66. Epub 2005 Dec 16. PMID: 16362410

Abstract Author(s):

Yunfei Gao, Dongqing Zhang, Buxiang Sun, Hajime Fujii, Ken-Ichi Kosuna, Zhinan Yin

Abstract:

Active hexose correlated compound (AHCC) is a mixture of polysaccharides, amino acids, lipids and minerals derived from cocultured mycelia of several species of Basidiomycete mushrooms. AHCC has been implicated to modulate immune functions and plays a protective role against infection. However, the potential role of AHCC in tumor immune surveillance is unknown. In this study, C57BL/6 mice were orally administered AHCC or water, followed by tumor cell inoculation. We showed that compared to pure water-treated mice, AHCC treatment significantly delayed tumor development after inoculation of either melanoma cell line B16F0 or lymphoma cell line EL4. Treatment with AHCC enhanced both Ag-specific activation and proliferation of CD4(+) and CD8(+) T cells, increased the number of tumor Ag-specific CD8(+) T cells, and more importantly, increased the frequency of tumor Ag-specific IFN-gamma producing CD8(+) T cells. Interestingly, AHCC treatment also showed increased cell number of NK and gammadelta T cells, indicating the role of AHCC in activating these innate-like lymphocytes. In summary, our results demonstrate that AHCC can enhance tumor immune surveillance through regulating both innate and adaptive immune responses.

Study Type : Animal Study

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