title: Vaccine potential of influenza vectors expressing Mycobacterium tuberculosis ESAT-6 protein.
abstract: We generated several attenuated recombinant influenza A vectors expressing the Mycobacterium tuberculosis early secretory antigenic target (ESAT-6) protein. The ESAT-6 protein was recently identified as one of the most promising protective antigens for cell-mediated immunity. The obtained vectors appeared to be capable of inducing ESAT-6 specific Th1 immune response in mice after intranasal immunization. We found that double immunization with two influenza vectors of different subtypes provided a significant level of protection in mice, when applied as prophylactic vaccine, as well as substantial therapeutic effect in mice with pre-established tuberculosis infection. Moreover, we found a strong synergistic effect when vaccination with Flu/ESAT-6 vectors was combined with isoniazid treatment, resulting in a dramatic reduction of bacterial load in the lungs of infected mice.
authors: Influenza Research Institute, Russian Academy of Medical Sciences, St. Petersburg.
authors: M A
authors: MA
authors: Stukova
authors: S
authors: S
authors: Sereinig
authors: N V
authors: NV
authors: Zabolotnyh
authors: B
authors: B
authors: Ferko
authors: C
authors: C
authors: Kittel
authors: J
authors: J
authors: Romanova
authors: T I
authors: TI
authors: Vinogradova
authors: H
authors: H
authors: Katinger
authors: O I
authors: OI
authors: Kiselev
authors: A
authors: A
authors: Egorov