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논문 기본 정보

자료유형
학술저널
저자정보
Su-Young Kim (성균관대학교) A-Rum Shin (충남대학교) Byung-Soo Lee (충남대학교) Hwa-Jung Kim (충남대학교) Bo Young Jeon (연세대학교) Sang-Nae Cho (연세대학교) Jeong-Kyu Park (충남대학교) Sung Jae Shin (충남대학교)
저널정보
대한미생물학회 JOURNAL OF BACTERIOLOGY AND VIROLOGY JOURNAL OF BACTERIOLOGY AND VIROLOGY Vol.39 No.3
발행연도
2009.9
수록면
183 - 193 (11page)

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Tuberculosis, which is caused by Mycobacterium tuberculosis (M. tb), is one of the most important infectious diseases in the world. Although many functional studies have been conducted on M. tb proteins in the post-genomic era, little is known about the function of many proteins expressed specifically during latency. Previously, we reported that Rv2041c from M. tb H37Rv is highly expressed under conditions of low pH and hypoxia, which represent the in vitro mimicry of latent tuberculosis. In the present study, increased expression levels of Rv2041c under hypoxia and low pH in vitro culture was confirmed by RT-PCR. Interestingly, Rv2041c showed significantly increased expression among genes of the same operon and genes belonging to the same functional group. Finally, the immune responses elicited by the recombinant (r) Rv2041c protein were investigated using ex vivo and in vivo models of M. tb infection. A significantly high level of pro-inflammatory cytokines such as TNF-α, IL-6, and IL-12p40 was detected in a dose-dependent manner by treatment of murine bone marrow-derived macrophages with rRv2041c protein. In addition, IFN-γ and TNF-α secretion increased after stimulation with purified Rv2041c protein to lymphocytes from latent and active TB mice in a modified Cornell model. In conclusion, our findings suggest that Rv2041c is a new T-cell antigen and could be a potential vaccine candidate against M. tb infection by inducing a strong cellular immune response.

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INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2010-475-002666264