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  • Title: Isolation and antitumor efficacy evaluation of a polysaccharide from Nostoc commune Vauch.
    Author: Guo M, Ding GB, Guo S, Li Z, Zhao L, Li K, Guo X.
    Journal: Food Funct; 2015 Sep; 6(9):3035-44. PubMed ID: 26201366.
    Abstract:
    Nostoc commune Vauch. has been traditionally used as a healthy food and medicine for centuries especially in China. It has been demonstrated that the polysaccharides isolated from Nostoc commune Vauch. exhibit strong antimicrobial and antioxidant activities. However, little is known about their anticancer activities and the underlying mechanisms of action. Herein, we report the isolation of a polysaccharide from Nostoc commune Vauch. (NVPS), and its physicochemical properties were analyzed. In an attempt to demonstrate the potential application of NVPS in tumor chemotherapy, the in vitro antitumor activity was determined. NVPS significantly suppressed the growth and proliferation of MCF-7 and DLD1 cells. The molecular mechanism underlying this in vitro antitumor efficacy was elucidated, and the results indicated that NVPS simultaneously triggered intrinsic, extrinsic and endoplasmic reticulum stress (ERS)-mediated apoptotic signaling pathways. Collectively, these findings demonstrate that NVPS could be used as a novel promising source of natural antitumor agents.
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