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Vaccine. 2009 May 26;27(25-26):3267-70. doi: 10.1016/j.vaccine.2009.01.064. Epub 2009 Feb 5.

Novel prophylactic and therapeutic vaccine against tuberculosis.

Author information

1
Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, 1180 Nagasone, Kitaku, Sakai, Osaka 591-8555, Japan. okm@kch.hosp.go.jp

Abstract

We have developed a novel tuberculosis (TB) vaccine; a combination of the DNA vaccines expressing mycobacterial heat shock protein 65 (HSP65) and interleukin 12 (IL-12) delivered by the hemagglutinating virus of Japan (HVJ)-envelope and -liposome (HSP65+IL-12/HVJ). This vaccine provided therapeutic efficacy as well as remarkable protective efficacy via CD8(+) T and CD4(+) T cells in murine models compared with the saline controls, on the basis of CFU of number of multi-drug resistant TB (MDR-TB), and survival of extremely drug resistant TB (XDR-TB) challenged mice. Furthermore, we extended our studies to a cynomolgus monkey model, which is currently the best animal model of human tuberculosis. This vaccine exerted therapeutic efficacy (survival and immune responses) in the TB-infected monkeys. These data indicate that our novel DNA vaccine might be useful against Mycobacterium tuberculosis including XDR-TB and MDR-TB for human therapeutic clinical trials.

PMID:
19200841
DOI:
10.1016/j.vaccine.2009.01.064
[Indexed for MEDLINE]

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