2008 Fiscal Year Final Research Report
Perturbation of macrophage function by virulence-associating determinants derived from Mycobacterium tuberculosis
Project/Area Number |
19590443
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Bacteriology (including Mycology)
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Research Institution | Kyoto University |
Principal Investigator |
KAWAMURA Ikuo Kyoto University, 医学研究科, 准教授 (20214695)
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Project Period (FY) |
2007 – 2008
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Keywords | 結核菌 / BCG / RD1 / マクロファージ / ネクローシス / カスパーゼ / PD-1 / サイトカイン |
Research Abstract |
結核菌ゲノム上に存在するRD1領域は、マクロファージのミトコンドリア内膜の傷害や、細胞質内カリウムの流出に関与する. その結果、結核菌感染マクロファージでは細胞死やカスパーゼ1の活性化が誘導される. 一方、PPE37は炎症性サイトカイン産生を抑制することで結核菌の病原性に寄与する. また、BCGを用いた感染実験で、宿主体内から菌が容易に排除されないのは、PD-1を介した抑制性シグナル経路が活性化されるためであることが示された.
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Research Products
(27 results)
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[Journal Article] Dependency of caspase-1 activation induced in macrophages by Listeria monocytogenes on cytolysin listeriolysin O, after evasion from phagosome into the cytoplasm2008
Author(s)
Hara, H., Tsuchiya, K., Nomura, T., Kawamura, I., Shoma, S., and Masao Mitsuyama, M
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Journal Title
J. Immunol 180
Pages: 7859-7868
Peer Reviewed
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[Journal Article] Critical involvement of pneumolysin in production of IL-1a and caspase-1-dependentcytokines in infection with Streptococcus pneumoniae in vitro : a novel function of pneumolysin in caspase-1 activation2008
Author(s)
Shoma, S., Tsuchiya, K., Kawamura, I., Nomura, T., Hara, H., Uchiyama, R., Daim, S., and Mitsuyama, M
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Journal Title
Infect. Immun 76(4)
Pages: 1547-1557
Peer Reviewed
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[Journal Article] Irreversible loss of membrane-binding activity of Listeria-derived cytolysins in non-acidic conditions : a distinct difference from allied cytolysins produced by other Gram-positive bacteria2007
Author(s)
Nomura, T., Kawamura, I., Kohda, C., Baba, H., Ito, Y., Kimoto, T., Watanabe, I., and Mitsuyama, M
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Journal Title
Microbiology 153
Pages: 2250-2258
Peer Reviewed
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[Journal Article] Cytolysin-dependent escape of the bacterium from the phagosome is required but not sufficient for induction of the Th1 immune response against Listeria monocytogenes infection : distinct role of Listeriolysin O determined by cytolysin gene replacement2007
Author(s)
Hara, H., Ikuo Kawamura, Nomura, T., Tominaga, T., Tsuchiya, K., and Mitsuyama, M
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Journal Title
Infect. Immun 75(8)
Pages: 3791-3801
Peer Reviewed
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[Journal Article] Involvement of caspase-9 in the inhibition of necrosis of RAW 264 cells infected with Mycobacterium tuberculosis2007
Author(s)
Uchiyama, R., Kawamura, I., Fujimura, T., Kawanishi, M., Tsuchiya, K., Tominaga, T., Kaku, T., Fukasawa, Y., Sakai, S., Nomura, T., and Mitsuyama, M
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Journal Title
Infect. Immun 75(6)
Pages: 2894-2902
Peer Reviewed
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[Presentation] Involvement of caspase-9 in the inhibition of necrosis of peritoneal macrophages infected with Mycobacterium tuberculosis2007
Author(s)
Uchiyama, R., Kawamura, I., Tsuchiya, K., Tominaga, T., Sakai, S., Nomura, T., and Mitsuyama, M
Place of Presentation
グランドプリンスホテル新高輪(東京)
Year and Date
2007-11-21
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