<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Marta Romano</style></author><author><style face="normal" font="default" size="100%">Virginie Roupie</style></author><author><style face="normal" font="default" size="100%">Wang, Xiao M</style></author><author><style face="normal" font="default" size="100%">Olivier J Denis</style></author><author><style face="normal" font="default" size="100%">Fabienne Jurion</style></author><author><style face="normal" font="default" size="100%">Adnet, Pierre-Yves</style></author><author><style face="normal" font="default" size="100%">Laali, Rachid</style></author><author><style face="normal" font="default" size="100%">Huygen, Kris</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Immunogenicity and protective efficacy of tuberculosis DNA vaccines combining mycolyl-transferase Ag85A and phosphate transport receptor PstS-3.</style></title><secondary-title><style face="normal" font="default" size="100%">Immunology</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Immunology</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Acyltransferases</style></keyword><keyword><style  face="normal" font="default" size="100%">Animals</style></keyword><keyword><style  face="normal" font="default" size="100%">Antigens, Bacterial</style></keyword><keyword><style  face="normal" font="default" size="100%">ATP-Binding Cassette Transporters</style></keyword><keyword><style  face="normal" font="default" size="100%">Bacterial Proteins</style></keyword><keyword><style  face="normal" font="default" size="100%">CD8-Positive T-Lymphocytes</style></keyword><keyword><style  face="normal" font="default" size="100%">Cricetinae</style></keyword><keyword><style  face="normal" font="default" size="100%">Female</style></keyword><keyword><style  face="normal" font="default" size="100%">Immunity, Cellular</style></keyword><keyword><style  face="normal" font="default" size="100%">mice</style></keyword><keyword><style  face="normal" font="default" size="100%">Mice, Inbred BALB C</style></keyword><keyword><style  face="normal" font="default" size="100%">Mice, Inbred C57BL</style></keyword><keyword><style  face="normal" font="default" size="100%">Mycobacterium tuberculosis</style></keyword><keyword><style  face="normal" font="default" size="100%">Plasmids</style></keyword><keyword><style  face="normal" font="default" size="100%">Recombinant Fusion Proteins</style></keyword><keyword><style  face="normal" font="default" size="100%">Th1 Cells</style></keyword><keyword><style  face="normal" font="default" size="100%">Transfection</style></keyword><keyword><style  face="normal" font="default" size="100%">Tuberculosis</style></keyword><keyword><style  face="normal" font="default" size="100%">Tuberculosis Vaccines</style></keyword><keyword><style  face="normal" font="default" size="100%">Vaccines, DNA</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2006</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2006 Jul</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">118</style></volume><pages><style face="normal" font="default" size="100%">321-32</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;DNA vaccines encoding the 32,000 MW mycolyl-transferase Ag85A and the 40,000 MW phosphate-binding protein PstS-3 can elicit protective immune responses against experimental infection with Mycobacterium tuberculosis in C57BL/6 mice. Here we have analysed the vaccine potential of a combination of both antigens using plasmid vectors expressing either a fusion protein of both antigens or the separate proteins driven by two independent promoters (in pBudCE4.1 vector). Comparable levels of Ag85A specific T helper 1 (Th1) type immune responses could be induced by the two combination vaccines and the single vaccine encoding the mycolyl-transferase, whereas induction of PstS-3 specific Th1-mediated responses was impaired in both combination vaccines. In contrast, magnitude of CD8+ mediated responses against the PstS-3 protein was comparable following combination or single DNA vaccination. Antigenic competition was also observed at the antibody level; PstS-3 specific levels being lower in mice vaccinated with the fusion vector and Ag85A specific levels being lower in mice vaccinated with the combination pBudCE4.1 vector (as compared to levels obtained following single plasmid immunization). Protection against M. tuberculosis was only modestly improved in mice vaccinated with the DNA combinations. It is possible that prior activation of Ag85A specific CD4+ T cells directed against this common mycobacterial antigen leads to cross-competition for major histocompatibility complex class II-restricted peptide complexes of the Pst-3 antigen. This may have implications for future combination vaccines using Ag85.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">3</style></issue><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/16827893?dopt=Abstract</style></custom1></record></records></xml>