Immunogenicity comparison of the intradermal or endobronchial boosting of BCG vaccinates with Ad5-85A

Adam Whelan, Pinar Court, Zhou Xing, Derek Clifford, Philip J. Hogarth, Martin Vordermeier, Bernardo Villarreal-Ramos*

*Awdur cyfatebol y gwaith hwn

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

18 Dyfyniadau (Scopus)

Crynodeb

Experiments in small animal models have indicated that intranasal vaccination confers a greater degree of protection against TB than other routes such as intradermal (i.d.) or intramuscular. In this work, using a prime-boost vaccination strategy, we have compared in cattle vaccinated with BCG as a priming vaccine the boosting capabilities of Ad5-85A delivered either via the endobronchial (e.b.) or i.d. route. We show that Ad5-85A delivered through either route induced comparable peripheral blood antigen specific responses, and that both i.d. and e.b. routes induced bronchioalveolar lavage cells (BALC) that produced antigen-specific IFNgamma. We also show that, regardless of the route of boosting, the kinetics of peripheral blood and BALC responses, as assessed by antigen specific IFNgamma production, are different with systemic responses being detectable earlier than mucosal responses.These results contribute to our understanding on how different vaccination strategies may affect different compartments of the immune response and in turn to the development of safer and more effective vaccines.

Iaith wreiddiolSaesneg
Tudalennau (o-i)6294-6300
Nifer y tudalennau7
CyfnodolynVaccine
Cyfrol30
Rhif cyhoeddi44
Dyddiad ar-lein cynnar10 Awst 2012
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 28 Medi 2012

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