V. Murali, G. Kuttan,
May 26, 2016
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Journal
Immunopharmacology and Immunotoxicology
Abstract
Abstract A positive modulation of immune system is necessary for preparing the body to fight against malignant tumor cells. In the present study, the stimulatory effect of Curculigoside on cell-mediated immune response against the metastasis of B16F10 melanoma cells was analyzed in C57BL/6 mice. Curculigoside is a phenolic glucoside present in the plant Curculigo orchioides Gaertn. (Family – Amaryllidaceae). Administration of Curculigoside enhanced the natural killer (NK) cell activity, antibody-dependent cell-mediated cytotoxicity and complement-mediated cytotoxicity in metastatic tumor-bearing animals, when compared to the untreated control animals. The compound was also found to be effective in reducing the levels of proinflammatory cytokines such as TNF-α, IL-1β, IL-6 and GM-CSF during metastasis. Besides these, levels of TH1 cytokines, such as IL-2 and IFN-γ, were significantly enhanced (p < 0.001) by Curculigoside administration and thereby reduces the metastatic lung colony formation along with an increased lifespan of the experimental animals. These studies provide an evidence for the stimulation of cell-mediated immune responses by Curculigoside against B16F10-induced metastatic tumor progression in experimental animals.