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Cross‐reactivity of Vector‐borne Metacyclic Forms of Trypanosoma cruzi with Mammalian and Culture Stages 1
Author(s) -
VILLALTA FERNANDO,
KIERSZENBAUM FELIPE
Publication year - 1983
Publication title -
the journal of protozoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.067
H-Index - 77
eISSN - 1550-7408
pISSN - 0022-3921
DOI - 10.1111/j.1550-7408.1983.tb02924.x
Subject(s) - trypanosoma cruzi , rhodnius prolixus , amastigote , biology , rhodnius , antigen , virology , parasite hosting , chagas disease , immunofluorescence , vector (molecular biology) , antibody , triatominae , titer , microbiology and biotechnology , immunology , leishmania , insect , virus , recombinant dna , ecology , biochemistry , world wide web , computer science , gene
Metacyclic forms of Trypanosoma cruzi isolated from the hindgut of infected insect vectors ( Rhodnius prolixus ) were found to be immunologically cross‐reactive with cultured epimastigote, amastigote, and metacyclic stages of the parasite as well as with bloodstream trypomastigote forms by direct agglutination and indirect immunofluorescence techniques. Sera specific for each of these forms of the parasite systematically yielded maximal antibody titers when measured against the homologous antigen, indicating that antigenic determinants are shared by all of the developmental forms used in this work. Supporting this conclusion were the significant reductions in anti‐insect‐derived metacyclic antibody titer caused by absorption with any of the other life stages of T. cruzi. These results are relevant to the potential use of laboratory‐grown forms of T. cruzi in vaccination against a natural infection with this parasite.