title: Anti-inflammatory activity of polysaccharide from Pholiota nameko.
abstract: Pholiota nameko polysaccharide (PNPS-1) has been isolated and purified by enzymatic hydrolysis, hot water extraction, ethanol precipitation, and ion-exchange and gel-filtration chromatography. The anti-inflammatory activity of PNPS-1 was evaluated in rodents using xylene-induced ear edema, egg albumin-, carrageenin-, and formaldehyde-induced paw edema, cotton pellet granuloma test, adhesion of peritoneal leukocytes in vitro, and ulcerogenic activity. The results showed that PNPS-1 (5 mg/ear) inhibited topical edema in the mouse ear and at 100, 200, and 400 mg/kg (intraperitoneally) it significantly suppressed the development of egg albumin-, carrageenin-, and formaldehyde-induced paw edema in the animals. PNPS-1 (100, 200, and 400 mg/kg, per oral) significantly inhibited the growth of granuloma tissues induced by subcutaneously implanted cotton pellets in rats by 10.96, 18.07, and 43.75%, respectively. PNPS-1 also inhibited spontaneous and phorbol-12-myristate-13-acetate-activated adhesion of peritoneal leukocytes in vitro. Further, both acute as well as chronic administration of PNPS-1 (100, 200, and 400 mg/kg, per oral) did not produce any gastric lesion in rats. In conclusion, these data indicated that PNPS-1 possesses significant anti-inflammatory activity suggesting its potential as an anti-inflammatory agent for use in the treatment of various inflammatory-related diseases.
authors.affiliation: Tianjin Key Laboratory of Food Biotechnology, Faculty of Biotechnology and Food Science, Tianjin University of Commerce, Tianjin 300134, PR China. hhppli@163.com
authors.forename: Haiping
authors.initials: H
authors.lastname: Li
authors.forename: Xiaoxiang
authors.initials: X
authors.lastname: Lu
authors.forename: Shuhai
authors.initials: S
authors.lastname: Zhang
authors.forename: Meijun
authors.initials: M
authors.lastname: Lu
authors.forename: Hongmei
authors.initials: H
authors.lastname: Liu
mesh_terms: D000363:Agaricales / Q000737:chemistry*; D000818:Animals; D000893:Anti-Inflammatory Agents / Q000302:isolation & purification / Q000494:pharmacology / Q000627:therapeutic use*; D002478:Cells, Cultured; D004353:Drug Evaluation, Preclinical; D004487:Edema / Q000473:pathology; D005260:Female; D006099:Granuloma / Q000473:pathology / Q000517:prevention & control; D007249:Inflammation / Q000188:drug therapy*; D017737:Macrophages, Peritoneal / Q000187:drug effects / Q000473:pathology; D008297:Male; D051379:Mice; D008517:Phytotherapy; D010936:Plant Extracts / Q000302:isolation & purification / Q000494:pharmacology / Q000627:therapeutic use; D011134:Polysaccharides / Q000302:isolation & purification / Q000494:pharmacology / Q000627:therapeutic use*; D051381:Rats; D017207:Rats, Sprague-Dawley
chemical_list: D000893:Anti-Inflammatory Agents; D010936:Plant Extracts; D011134:Polysaccharides