[Building of a genomic library of Leishmania amazonensis and its expression in BALB/c mice's muscle]. / Construcción de una biblioteca genómica de Leishmania amazonensis y su expresión en músculo de ratones BALB/c.

A genomic library of Leishaminia amazonensis was built through a pcDNA3 vector, with expression promoter in eukaryot cells, to contribute to the application of immunization technology with nucleic acids in leishmaniasis. To show the expression genomic library in the muscles of mice immunized with it, the indirect immunofluoresce technique was used. A mix of sera with high antileishmania titers from an area where L.braziliensis infection is predominant was used as primary antibody. A library of 80% recombinant clones was obtained. Antigen determinant expression was confirmed in immunized BALB/c mice's muscles, according to the results of immunofluorescence testing.

[Evaluation of the humoral immune response by Western Blot test in mice immunized with expression genomic library of Trypanosoma cruzi]. / Evaluación de la respuesta inmune humoral por western blot en ratones inmunizados con una biblioteca genómica de expresión de Trypanosoma cruzi.

An expression genomic library of Trypanosoma cruzi was built by using plasmid pc DNA3 as a vector. This library served to immunize by intramuscular administration BALB/c inbred mice. A positive control group to which T. cruzi soluble antigens were administered and other group which was given the same plasmid used for the building of the genomic library were included in this study; another group was not immunized. Blood was extracted from the retrorbital plexus of all the mice two weeks after the third vaccination so as to study the specific antibody response to soluble parasite anigens through the Western Blot technique. The antibody response was shown in animals immunized with the expression genomic library and with soluble parasite antigens.