ErpY-like protein, a promising antigen to leptospirosis control: characterization of antigenic and immunogenic potential

ErpY-like protein (LIC11966) is an antigen from Leptospira spp., which is possibly involved in the infection process and, consequently, can be a promising solution for the development of new diagnostic tests and vaccines. Here, the presence of the erpY-like gene was evaluated in several Leptospira...

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Main Authors: Bárbara Couto Roloff Padilha, Henrique Queiroz Simão, Thais Farias Collares, Stella Buchhorn de Freitas, Thaís Larré Oliveira, Rodrigo Andrade Schuch, Rafael dos Santos Woloski, Daiane Hartwig
Format: Article
Language:English
Published: Universidade Estadual de Maringá 2022-08-01
Series:Acta Scientiarum: Biological Sciences
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Online Access:https://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/61160
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Summary:ErpY-like protein (LIC11966) is an antigen from Leptospira spp., which is possibly involved in the infection process and, consequently, can be a promising solution for the development of new diagnostic tests and vaccines. Here, the presence of the erpY-like gene was evaluated in several Leptospira serovars by polymerase chain reaction (PCR), and the ErpY-like recombinant protein was produced and characterized in terms of antigenicity and immunogenicity in vivo. The erpY-like gene was detected by PCR in all Leptospira pathogenic serovars tested (n = 8) and was absent in the saprophytic ones. The rErpY-like protein was recognized by antibodies present in the sera of humans and animals (swine and canine) naturally infected, suggesting ErpY-like expression during natural infection. The rErpY-like protein used to immunize mice with Freund’s adjuvant stimulated a mixed Th1/Th2 response, an important protective immunity against leptospirosis
ISSN:1679-9283
1807-863X