Therapeutic effects of combined treatment with ribavirin and tiazofurin on experimental autoimmune encephalomyelitis development: Clinical and histopathological evaluation

详细信息    查看全文

• 作者：Danijela Stojkov ; Irena Lavrnja ; Sanja Pekovic ; Sanja Dacic ; Ivana Bjelobaba ; Marija Mostarica-Stojkovic ; Stanislava Stosic-Grujicic ; Sasa Jovanovic ; Nadezda Nedeljkovic ; Ljubisav Rakic ; Mirjana Stoj
• 关键词：Experimental autoimmune encephalomyelitis ; Multiple sclerosis ; Immunosupression ; Ribavirin ; Tiazofurin ; Combination therapy
• 刊名：Journal of the Neurological Sciences
• 出版年：2008
• 出版时间：15 April 2008
• 年：2008
• 卷：267
• 期：1-2
• 页码：76-85
• 全文大小：4257 K

文摘

Experimental autoimmune encephalomyelitis (EAE) is an animal model of multiple sclerosis (MS) and the helpful tool in preclinical testing of various substances considered for treatment of this human CNS disease. Ribavirin (R) and tiazofurin (T) are purine nucleoside analogues, with the broad spectrum of anti-viral, anti-tumoral and anti-inflammatory properties. We proposed that combined treatment with RT, administrated during the effector phase of EAE, would attenuate disease severity, both clinically and pathologically. Ribavirin was given daily at a dosage of 30 mg/kg and tiazofurin was given at a dosage of 10 mg/kg every other day for 15 days. We detected amelioration of clinical signs and faster recovery in the RT group compared to the control group. Immunohistochemical analyses revealed that RT treatment decrease the number of T cells, macrophages and microglia. In the controls, we detected reactive type of microglia, while in the RT group we noticed ramified/resting form. Demyelination areas and axonal damage were not recorded in the RT group, in contrast to the control group where multiple areas of demyelination zones and axonal loss were found. RT combination treatment suppresses ongoing EAE, prevents demyelination and axonal loss, and therefore may well be the potential therapy for the treatment of MS.