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Title: Redirection of the Immune Response to the Functional Catalytic Domain of the Cystein Proteinase Cruzipain Improves Protective Immunity against Trypanosoma cruzi Infection
Authors: Cazorla, Silvia I. 
Frank, Fernanda M. 
Becker, Pablo D. 
Arnaiz, María Rosa 
Mirkin, Gerardo A. 
Corral, Ricardo S. 
Guzman, Carlos A. 
Malchiodi, Emilio L. 
Issue Date: 2010
Description: Despite the strong immune responses elicited after natural infection with Trypanosoma cruzi or vaccination against it, parasite survival suggests that these responses are insufficient or inherently inadequate. T. cruzi contains a major cystein proteinase, cruzipain, which has a catalytic N-terminal domain and a C-terminal extension. Immunizations that employed recombinant cruzipain or its N- and C-terminal domains allowed evaluation of the ability of cruzipain to circumvent responses against the catalytic domain. This phenomenon is not a property of the parasite but of cruzipain itself, because recombinant cruzipain triggers a response similar to that of cruzipain during natural or experimental infection. Cruzipain is not the only antigen with a highly immunogenic region of unknown function that somehow protects an essential domain for parasite survival. However, our studies show that this can be reverted by using the N- terminal domain as a tailored immunogen able to redirect host responses to provide enhanced protection.
Rights: info:eu-repo/semantics/openAccess
Appears in Collections:Publicaciones INP

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