Antitumor Activity of Porcine Cartilage Polysaccharide on Breast Cancer

Abstract

The antitumor activity of porcine cartilage polysaccharide was evaluated by vivo animal models. The Ca761 tumor-bearing mice were treated with daily intraperitoneal injections of normal saline (control group) or cartilage polysaccharide (1500, 3000 or 4500mg/kg CPS group) for 14 days. The results demonstrated that CPS could effectively inhibit the tumor growth in Ca761 tumor-bearing mice. The tumor weights of the CPS groups were smaller compared to the control group. While the thymus index, spleen index were higher in the high dose 4500mg/kg CPS group than the control group. These results suggest that CPS might be a strong natural immunomodulator and the antitumor effect of this polysaccharide is associated with its potent immunostimulating effect.