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  • Title: Novel prophylactic and therapeutic vaccine against tuberculosis.
    Author: Okada M, Kita Y, Nakajima T, Kanamaru N, Hashimoto S, Nagasawa T, Kaneda Y, Yoshida S, Nishida Y, Nakatani H, Takao K, Kishigami C, Inoue Y, Matsumoto M, McMurray DN, Dela Cruz EC, Tan EV, Abalos RM, Burgos JA, Saunderson P, Sakatani M.
    Journal: Vaccine; 2009 May 26; 27(25-26):3267-70. PubMed ID: 19200841.
    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.
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