Syntetiske peptid-epitoper fra proteinet fra Pre-M/M fra dengue-virus

The present invention relates to five synthetic peptides of pre-M/M protein of Dengue-2 virus, corresponding to amino acid sequences 3-31, 45-67, 57-92, 69-93 and 103-124. The anti-peptide immune response was evaluated in mice. Recombinant fusion proteins were also obtained, including regions of pre...

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Hauptverfasser: VERA, MAYLIN ALVAREZ, COTERA, JOSE LUIS PELEGRINO MARTINEZ DE LA, RAMUDO, SUSANA VAZQUEZ, DIAZ, ANA BENTRIZ PEREZ, PALOMARES, GABRIEL PADRON, INSUITA, OMAIDA PEREZ, PEREZ, HILDA ELISA GARAY, ANTUNEZ, MARITZA PUPO, NIETO, GERARDO ENRIQUE GUILLEN, ACOSTA, OSVALDO REYES, LAZO, ORLANDO LUIS PARDO, DIAZ, LUIS MORIER, TIRADO, GUADALUPE GUZMAN, ROCHE, ROSMARI RODRIGUEZ, SANTIAGO, GLAY CHINEA
Format: Patent
Sprache:nor
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Zusammenfassung:The present invention relates to five synthetic peptides of pre-M/M protein of Dengue-2 virus, corresponding to amino acid sequences 3-31, 45-67, 57-92, 69-93 and 103-124. The anti-peptide immune response was evaluated in mice. Recombinant fusion proteins were also obtained, including regions of pre-M/M protein. The presence of B cell epitopes in both mice and humans was demonstrated in the pre-M/M protein peptides. Peptides 3-31 and 103-124 elicited neutralizing antibodies against the four serotypes of Dengue virus. Virus-specific proliferative responses were demonstrated in mice immunized with non-conjugated peptides 3-31 and 57-92. Mice immunized with conjugated peptides 3-31, 57-92, and 69-93 were protected when they were challenged with Dengue-2 virus. Thus, the presence of sequential epitopes in Pre-M/M protein of Dengue-2 virus was demonstrated, as well as their relevance in the immune response against this flavivirus.