title: Culture filtrate of Cryptococcus neoformans var. gattii (CneF) as a novel anti-inflammatory compound in the treatment of experimental septic arthritis.
abstract: We examined the efficacy of the culture filtrate of Cryptococcus neoformans var. gattii (CneF) as a novel anti-inflammatory compound in experimental septic arthritis. Haematogenously infectious arthritis was induced in rats by a single intravenous injection of 109 CFU Staphylococcus aureus producing toxic shock syndrome toxin-1. CneF solution at two different doses (36 and 72 mg/kg, based on carbohydrate concentration) was administered intraperitoneally 2 h before bacterial inoculation in the prevention groups and simultaneously with the appearance of clinical signs in the therapeutic groups. CneF administration was continued at regular 48-h intervals for 10 injections. The results of clinical evaluation showed that CneF-treated rats were significantly protected from disease development compared with nontreated controls. This finding correlated with the results of histological and radiological assessments of the involved joints. Synovial hypertrophy, inflammatory cell infiltration, pannus formation and cartilage/bone destruction were found to be significantly decreased in the prevention and therapeutic groups compared with arthritic controls. The data suggest that CneF may have therapeutic potential in the treatment of septic arthritis.
authors.affiliation: Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: A
authors.initials: A
authors.lastname: Mirshafiey
authors.forename: M
authors.initials: M
authors.lastname: Chitsaz
authors.forename: M
authors.initials: M
authors.lastname: Attar
authors.forename: F
authors.initials: F
authors.lastname: Mehrabian
authors.forename: A R
authors.initials: AR
authors.lastname: Razavi
mesh_terms: D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000302:isolation & purification / Q000494:pharmacology / Q000627:therapeutic use* / Q000633:toxicity; D001170:Arthritis, Infectious / Q000000981:diagnostic imaging / Q000188:drug therapy* / Q000473:pathology; D001427:Bacterial Toxins; D003455:Cryptococcus neoformans / Q000737:chemistry*; D004353:Drug Evaluation, Preclinical; D004768:Enterotoxins; D005260:Female; D005374:Filtration; D007166:Immunosuppressive Agents / Q000627:therapeutic use / Q000633:toxicity; D008351:Mannans / Q000302:isolation & purification / Q000494:pharmacology / Q000627:therapeutic use; D009172:Mycology / Q000379:methods; D011859:Radiography; D051381:Rats; D017207:Rats, Sprague-Dawley; D013203:Staphylococcal Infections / Q000000981:diagnostic imaging / Q000188:drug therapy* / Q000473:pathology; D018089:Superantigens
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D001427:Bacterial Toxins; D004768:Enterotoxins; D007166:Immunosuppressive Agents; D008351:Mannans; D018089:Superantigens; C030107:enterotoxin F, Staphylococcal