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Iranian Journal of Parasitology، جلد ۷، شماره ۳، صفحات ۵۴-۶۳
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عنوان انگلیسی In Vitro Trypanocidal Activity of Antibodies to Bacterially Ex­pressed Trypanosoma brucei Tubulin
چکیده انگلیسی مقاله Background: There are only four drugs for treating African trypanosomiasis, a devastating disease in sub-Saharan Africa. With slow discovery of better drugs, vaccination is viewed as the best method of control. We previously showed that antibodies to native Trypanosoma brucei brucei tubulin inhibit the growth of trypanosomes in culture. Here, we aimed to determine the effect of antibodies to bacte­rially expressed trypanosome tubulin on T. brucei brucei growth. Methods: T. brucei brucei alpha and beta tubulin genes were individually expressed in Escherichia coli under the tryptophan promoter. Monoclonal tubulin antibodies reacted specifically with the ex­pressed tubulins with no cross-reaction with the opposite tubulin. Rabbits were immunized with 450μg each of the concentrated recombinant tubulin, and production of antibodies assessed by ELISA and Western blotting. The effect of polyclonal antibodies on trypanosome growth was deter­mined by culturing bloodstream T. brucei brucei in up to 25% of antisera. Results: Low antisera dilutions (25%) from the immunized rabbits inhibited trypanosome growth. The most cytotoxic antisera were from one rabbit immunized with a mixture of both alpha and beta tubulins. However, the result was not reproduced in other rabbits and there was no apparent effect on growth at higher antisera dilutions. Conclusion: Antibodies to bacterially expressed trypanosome tubulin are not effective at killing cul­tured bloodstream trypanosomes.
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نویسندگان مقاله dp kateete | dp kateete
school of biomedical sciences, makerere university college of health sciences, kampala, uganda and college of veterinary medicine, animal resources amp;amp; biosecurity, makerere university, kampala, uganda


c alezuyo | c alezuyo
family planning and hiv programs, p.o box 26 mubende, uganda and college of veterinary medicine, animal resources amp;amp; biosecurity, makerere university, kampala, uganda


a nanteza | a nanteza
college of veterinary medicine, animal resources amp;amp; biosecurity, makerere university, kampala, uganda


c asiimwe | c asiimwe
college of veterinary medicine, animal resources amp;amp; biosecurity, makerere university, kampala, uganda and foundation for innovative new diagnostics find , kampala, uganda


gw lubega | gw lubega
college of veterinary medicine, animal resources amp;amp; biosecurity, makerere university, kampala, uganda
نشانی اینترنتی http://ijpa.tums.ac.ir/index.php/ijpa/article/view/253
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