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Chin Med J (Engl). 1992 Feb;105(2):97-101.

Effects of cordyceps sinensis on natural killer activity and colony formation of B16 melanoma.

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1
Institute of Combined Traditional Chinese and Western Medicine, Hunan Medical University, Changsha.

Abstract

This paper reports the study on the effects of the ethanol extract of Cordyceps sinensis (CS-II), a potent herbal tonic, on murine and human in vitro natural killer cell (NK) activities and on murine in vivo NK activity (by 125I clearance assay), and on colony formation of B16 melanoma in mouse lungs. The results revealed that: 1. the in vivo and in vitro NK activities of mouse were both significantly augmented by intraperitoneal (ip) injection of CS-II. Besides, the inhibition of mouse NK activity by cyclophosphamide (Cy) was prevented following the administration of CS-II; 2. the in vitro NK activity of human peripheral blood mononuclear cells (PBMs) was elevated by preincubation of PBMs with CS-II; and 3. the colony formation of B16 melanoma in mouse lungs was reduced significantly by ip pretreatment of the mice with CS-II. This study indicates that CS-II may be used as an immunopotentiating agent in treating cancer and immunodeficient patients.

PMID:
1597083
[Indexed for MEDLINE]

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