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    Cell Immunol. 2007 Jun;247(2):85-94. Epub 2007 Sep 29.

    Recombinant Sendai virus induces T cell immunity against respiratory syncytial virus that is protective in the absence of antibodies.

    Source

    Institut für Virologie, Stiftung Tierärztliche Hochschule Hannover, Bünteweg 17, 30559 Hannover, Germany.

    Abstract

    Respiratory syncytial virus (RSV) causes severe respiratory disease in infants and a vaccine is highly desirable. The fusion (F) protein of RSV is an important vaccine target, but the contribution of F-specific T cells to successful vaccination remains unclear. We studied the immune response to vaccination of mice with a recombinant Sendai virus expressing RSV F (rSeV F). rSeV F induced protective neutralizing antibody and RSV F-specific CTL responses. T cell immunity was stronger than that induced by recombinant vaccinia virus (rVV F), a well characterized reference vector. Vaccination of antibody-deficient mice showed that vaccine-induced RSV F-specific T cells were sufficient for protective immunity. rSeV F induced T cell immunity in the presence of neutralizing antibodies, which did not impair the vaccine response. Although the F protein only contains a subdominant CTL epitope, vaccination with rSeV F is sufficient to induce protective T cell immunity against RSV in mice.

    PMID:
    17904538
    [PubMed - indexed for MEDLINE]

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