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Biochim Biophys Acta Mol Basis Dis ; 1866(5): 165658, 2020 05 01.
Article in English | MEDLINE | ID: mdl-31904415

ABSTRACT

Chagas disease is currently endemic to 21 Latin-American countries and has also become a global concern because of globalization and mass migration of chronically infected individuals. Prophylactic and therapeutic vaccination might contribute to control the infection and the pathology, as complement of other strategies such as vector control and chemotherapy. Ideal prophylactic vaccine would produce sterilizing immunity; however, a reduction of the parasite burden would prevent progression from Trypanosoma cruzi infection to Chagas disease. A therapeutic vaccine for Chagas disease may improve or even replace the treatment with current drugs which have several side effects and require long term treatment that frequently leads to therapeutic withdrawal. Here, we will review some aspects about sub-unit vaccines, the rationale behind the selection of the immunogen, the role of adjuvants, the advantages and limitations of DNA-based vaccines and the idea of therapeutic vaccines. One of the main limitations to advance vaccine development against Chagas disease is the high number of variables that must be considered and the lack of uniform criteria among research laboratories. To make possible comparisons, much of this review will be focused on experiments that kept many variables constant including antigen mass/doses, type of eukaryotic plasmid, DNA-delivery system, mice strain and sex, lethal and sublethal model of infection, and similar immunogenicity and efficacy assessments.


Subject(s)
Antigens, Protozoan/immunology , Chagas Cardiomyopathy/prevention & control , Protozoan Vaccines/immunology , Research Design , Trypanosoma cruzi/immunology , Animals , Chagas Cardiomyopathy/immunology , Chagas Cardiomyopathy/parasitology , Disease Models, Animal , Female , Humans , Immunogenicity, Vaccine , Male , Mice , Protozoan Vaccines/administration & dosage , Sex Factors , Vaccines, Subunit/administration & dosage , Vaccines, Subunit/immunology
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