Abstract
In the present study, the immunotherapeutic activity of oral intake of natural Phellinus linteus fruit body (nPF) against growth and pulmonary metastasis of injected B16/BL6 melanoma cells has been examined. The nPF powder was orally administered to B16/BL6-bearing mice, a model for the pulmonary metastasis of melanoma, at doses of 83, 415 and 2,075 mg/kg day in their diet. The dietary intake of nPF powder significantly prolonged the survival time of the B16/BL6-bearing mice. Furthermore, ingestion of nPF dose-dependently enhanced NO production by macrophages prepared from the tumor-bearing, nPF-treated animals. Simultaneously, nPF did not induce direct cytotoxicity against B16/BL6. These results suggest that the oral intake of nPF powder may be useful in immunochemotherapy for cancer because of its life prolongation through the inhibitory effect on growth and metastasis of cancer.
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Ohno, T., Takahashi, Y., Tanabe, H. et al. Inhibitory effect of oral intake of natural Phellinus linteus fruit body on growth and pulmonary metastasis of B16/BL6 melanoma. J Nat Med 61, 438–442 (2007). https://doi.org/10.1007/s11418-007-0163-6
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DOI: https://doi.org/10.1007/s11418-007-0163-6