title: Preparation of a chemically sulfated polysaccharide derived from Grifola frondosa and its potential biological activities.
abstract: This report describes the preparation, characterization and potential biological activities of a chemically sulfated polysaccharide (S-GAP-P), which was derived from water-insoluble polysaccharide of Grifola frondosa mycelia. S-GAP-P was determined to be a glucan sulfate with the average molecular weight of 28 kDa and the sulfur content of 16.4%. The antitumor and immunomodulating activities of the sulfated derivative were estimated in vitro and in vivo. S-GAP-P inhibited the proliferation of SGC-7901 cells and induced apoptosis, in a dose-dependent manner. And the results from in vivo experiments demonstrated that S-GAP-P significantly inhibited the tumor growth and enhanced the peritoneal macrophages phagocytosis in S180-bearing mice. It is noteworthy that S-GAP-P could accelerate the antitumor activity of CTX and improve the immunocompetence damaged by CTX, suggesting the combination might increase cytotoxic efficacy and decrease toxicity of some chemotherapeutic agents in cancer treatment.
authors.affiliation: College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, PR China. niexiaohua2000@126.com
authors.forename: Xiaohua
authors.initials: X
authors.lastname: Nie
authors.forename: Baojun
authors.initials: B
authors.lastname: Shi
authors.forename: Yuting
authors.initials: Y
authors.lastname: Ding
authors.forename: Wenyi
authors.initials: W
authors.lastname: Tao
mesh_terms: D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000008:administration & dosage / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D017209:Apoptosis / Q000187:drug effects; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D003520:Cyclophosphamide / Q000008:administration & dosage; D048691:Grifola / Q000737:chemistry*; D006801:Humans; D007155:Immunologic Factors / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D066298:In Vitro Techniques; D017737:Macrophages, Peritoneal / Q000187:drug effects / Q000276:immunology; D051379:Mice; D008970:Molecular Weight; D010587:Phagocytosis / Q000187:drug effects; D008517:Phytotherapy; D011134:Polysaccharides / Q000008:administration & dosage / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D012510:Sarcoma 180 / Q000188:drug therapy / Q000473:pathology; D013431:Sulfates / Q000737:chemistry
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D007155:Immunologic Factors; D011134:Polysaccharides; D013431:Sulfates; D003520:Cyclophosphamide