Navegando por Autor "Magalhães, Camila Paula"

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Immunological changes in canine peripheral blood leukocytes triggered by immunization with first or second generation vaccines against canine visceral leishmaniasis.
(2011) Araújo, Márcio Sobreira Silva; Andrade, Renata Aline de; Avelar, Renato Sathler; Magalhães, Camila Paula; Carvalho, Andréa Teixeira de; Andrade, Mariléia Chaves; Campolina, Sabrina Sidney; Melo, Maria Norma; Vianna, Leonardo Rocha; Mayrink, Wilson; Reis, Alexandre Barbosa; Malaquias, Luiz Cosme Cotta; Rocha, Luciana Morais; Martins Filho, Olindo Assis
In this study, we summarized the major phenotypic/functional aspects of circulating leuko-cytes following canine immunization with Leishvaccine and Leishmune ®. Our findings showed that Leishvaccine triggered early changes in the innate immunity (neutrophils and eosinophils) with late alterations on monocytes. Conversely, Leishmune ® induced early phenotypic changes in both, neutrophils and monocytes. Moreover, Leishvaccine triggered mixed activation-related phenotypic changes on T-cells (CD4 + and CD8 +) and B-lymphocytes, hereas Leishmune® promoted a selective response, mainly associated with CD8 + T-cell activation. Mixed cytokine profile (IFN- /IL-4) was observed in Leishvaccine immunized dogs whereas a selective pro-inflammatory pattern (IFN- /NO) was induced by Leishmune ® vaccination. The distinct immunological profile triggered by Leishvaccine and Leishmune ® may be a direct consequence of the distinct biochemical composition of these immunobiological, i.e. complex versus purified Leishmaniaantigen along with Bacillus Calmette-Guérin (BCG) versus saponin adjuvant. Both immunobiologicals are able to acti-vate phagocytes and CD8 + T-cells and therefore could be considered as a putative vaccines against canine visceral leishmaniasis (CVL)