Expressão da glicoproteína recombinante do vírus rábico em sistemas Drosophila melanogaster (S2) e Semliki Forest Virus (SFV). / Rabies virus glycoprotein expression in Drosophila melanogaster (S2) and Semliki Forest Virus (SFV) systems.

AUTOR(ES)

Renato Mancini Astray

DATA DE PUBLICAÇÃO

2009

RESUMO

The rabies virus glycoprotein is the major antigen able to induce a neutralizing antibody response and survival after challenge against rabies virus infection. We have studied the kinetic expression of RVGP and its messenger RNA (RVGPmRNA) in two different recombinant expression systems: stably transfected Drosophila melanogaster cells (rS2) and BHK-21 cells infected with Semliki Forest Virus carrying RVGP genetic information (SFV-RVGP). We have done a work of standardization of the cell culture samples treatment prior to RVGP quantification by ELISA, and we have developed and standardized a quantitative RT-PCR (qRT-PCR) to quantify the RVGPmRNA. We have also developed a new method of SFV particles titration by qRT-PCR, which is applicable to other constructions of recombinant SFV. We utilized the RVGP expressed by rS2 and SFV-RVGP systems on preliminary in vivo assays. The RVGP samples used to mice immunization were able to induce neutralizing antibodies and to lead to a nice level of protection against the intracerabral rabies virus challenge.

ASSUNTO(S)

elisa qrt-pcr semliki forest virus qrt-pcr s2 cells rvgpmrna semliki forest virus elisa rvgpmrna glicoproteína do vírus rábico células s2 rabies virus glycoprotein

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