The effects of Fumaderm® on immunological function and cytokines in a rat model of adjuvant-induced arthritis / 西安交通大学学报·英文版

ABSTRACT

Objective: To study the therapeutic effect of Fumaderm® in Freund's complete adjuvant-induced arthritis (AIA) in Spraque-Dawley rats. Methods: Adjuvant-induced arthritis (AIA) was established by intradermal injection of 0.1 mL of Freund's complete adjuvant (CFA) in the palmar surface of the right hindpaw and Fumaderm® was delivered by oral gavage for 28 days. After CFA injection, the edema of the hindpaw was determined every two days. On 28 days after CFA injection, the lymphocyte subsets of peripheral blood and the cytokines were determined by flow cytometry, meanwhile the histopathological examination of ankle-joints of the animals was performed. Results: Fumaderm® had a significant therapeutic effect on AIA. The hindpaw swelling was reduced significantly in a dose-dependent manner. The ratio of peripheral blood T lymphocytes was improved obviously. Multiparameter cytokine analysis from peripheral blood CD4+ T cells showed a decrease of proinflammatory cytokines and an increase of anti-inflammatory cytokines in Fumaderm® treated animals. A strongly reduced inflammatory response in the joint synovium was observed. Conclusion: Fumaderm® has potential anti-inflammatory effects on AIA rats. Further investigation is needed to elucidate the molecular mechanism involved in the clinical effect observed in the AIA model.