Resumo

PUPO ANTUNEZ, Maritza et al. Anticuerpos monoclonales al virus dengue 4: espectro de reactividad a los 4 serotipos del dengue. Rev Cubana Med Trop [online]. 2000, vol.52, n.2, pp. 119-125. ISSN 1561-3054.

These types of monoclonal antibodies 8E8, 3F7 and 1E9 to dengue 4 virus H-241 strain. These monoclonal antibodies show various patterns of reactivity to the four dengue serotypes and different antigen preparations of serotype 4 when they were tested in various serological methods. The monoclonal antibody 8E8 exhibited a specificity of serotype (D-2 ; by hemagglutination inhibition); subcomplex (D-2 and D-4 by immunofluorescence) and complex (by immunoperoxidase technique). It was able to neutralize by 80% homologous virus and it turned out to be the only reactive monoclonal antibody in the complement fixation test. The monoclonal 3F7 did not react to by hemagglutination inhibition, recognized serotypes D-1, D-2, D-3 and D-4 by immunofluorescence and only serotypes D1 and D4 by immunoperoxidase technique but it was unable to neutralize the homologous virus. The 1E9 antibody was reactive to serotypes D1, D-2, D-3 and D-4 only by hemagglutination inhibition and neutralized serotype D-4. All the monoclonal antibodies were able to react to various dengue antigens through an ELISA of double antibody and showed fluorescent activity against 38^th pass in Beagle dog kidney culture; however, they could not react to a D-4 recombinant antigen.

Palavras-chave : ANTIBODIES,MONOCLONAL [immunology]; DENGUE VIRUS [immunology].

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