Roles of Monocytes/Macrophage for Acquired Immunity in Helicobacter pylori Infection
Project/Area Number |
18590425
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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 | Okayama University |
Principal Investigator |
YOKOTA Kenji Okayama University, Graduate School of Health Science, Associate Professor (00243460)
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Co-Investigator(Kenkyū-buntansha) |
AYADA Kiyoshi Okayama University, Graduate school of Medicine, Dentistry Pharmaceutical Scrence, Assistant Professor (00379835)
OGUMA Keiji Okayama University, Graduate school of Medicine, Dentistry Pharmaceutical science, Professor (00002262)
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Project Period (FY) |
2006 – 2007
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Project Status |
Completed (Fiscal Year 2007)
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Budget Amount *help |
¥4,010,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥510,000)
Fiscal Year 2007: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2006: ¥1,800,000 (Direct Cost: ¥1,800,000)
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Keywords | Helicobacter pylori / macrophage / DEC205 / MAPK / TLR / HSP60 / 動脈硬化 |
Research Abstract |
We have been studying functions of macrophage in Hefrcobacter pylori inffection. Because we think that acquired immunity may play important roles in the diseases caused by H. pylori infection. To investigate immunity of H.pylori infection, we have shown the H.pylori- HSP60 (heat shock protein 60 kDa) activates macrophage and it is useful antigen. We have shown some results supporting by this Grant. 1) HSP60 stimulated and activated a macrophage though TLR2 and TLR4. IL8 was produced from the macrophage depending on MAPK and NE-〓B activation. 2) Arteriosclerosis in Apo-E KO mouse was progressed by H. pylori infection. The pathology was associated with immunity to HSP60 and T helper 1. 3) Patients with arteriosclerosis possessed antibody to peptides from H. pylori-HSP60. The peptides might be available for diagnosis of arteriosclerosis. 4) DNA chip study indicated that DEC205 is an important receptor for macrophage activation in patients with gastritis caused by H pylori infection. We are now studying function of DEC205 on macrophage using NOMO-1 cell differenciated by PMA.
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Report
(3 results)
Research Products
(26 results)
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[Journal Article] Antibodies against heat shock protein 60 derived from Helicobacter pylori: diagnostic implications hl cardiovascular disease.2007
Author(s)
Okada T, Ayada K, Usui S, Yokota K, Cui J, Kawahara Y, Inaba T, Hirohata S, Mizuno M, Yamamoto D, Kusachi S, Matsuura E, Oguma K.
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Journal Title
J Autoimmun 29
Pages: 106-115
Description
「研究成果報告書概要(和文)」より
Related Report
Peer Reviewed
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[Journal Article] Chronic infections and atherosclerosis2007
Author(s)
Ayada, K., Yokota, K., Kobayashi, K., Shoenfeld, Y., Matsuura, E., Oguma, K
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Journal Title
Ann N Y Acad Sof 1108
Pages: 594-602
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] Antibodies against heat shock protein 60 derived from Helicobacter pylori diagnostic implications in cardiovascular disease2007
Author(s)
Okada, T., Ayada, K., Usui, S., Yokota, K., Cui, J., Kawahara, Y., Inaba, T., Hirohata, S., Mizuno, M., Yamamoto, D., Kusachi, S., Matsuura, E., Oguma, K
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Journal Title
J Autoimmun 29
Pages: 106-115
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] Helicobacter pylori heat-shock protein 60 induces interleokin-8 via a Toll-like receptor (TLR)2 and mitogen-activated protein (MAP) kinase pathway in human monocytes2007
Author(s)
Zhao, Y., Yokota, K., Ayada, K., Yamamoto, Y., Okada, T., Shen, L., Oguma, K
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Journal Title
J Med Microbiol 56
Pages: 154-164
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] Baseline gastric mucosal atrophy is a risk factor associated with the development of gastric Cancer after Helicobacter pylori eradication therapy in patients with peptic ulcer diseases2007
Author(s)
Take, S., Mizuno, M., Ishiki, K., Nagahara, Y., Yoshida, T., Yokota, K., Oguma, K
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Journal Title
J Gastroenterol 42
Pages: 21-27
NAID
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] Antibodies against heat shock protein 60 derived from Helicobacter pylori: diagnostic implications in cardiovascular disease.2007
Author(s)
Okada T, Ayada K, Usui S, Yokota K, Cui J, Kawahara Y, Inaba T, Hirohata S, Mizuno M, Yamamoto D, Kusachi S, Matsuura E, Oguma K.
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Journal Title
J Autoimmun. 29
Pages: 106-115
Related Report
Peer Reviewed
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[Presentation] Role of DEC205 in H. pylori Infection2008
Author(s)
Fujimoto, K., Yokota, K., Ayada, K., Hirai, K., Hyashi, K., Hirai, K., Oguma, K
Organizer
80th Nippon Saikin Gakkai
Place of Presentation
KYOTO
Year and Date
2008-03-25
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Presentation] Expression of DEC205 stimulated with H. pylori antigens2006
Author(s)
Fujimoto, K., Yokota, K., Ayada, K., Hirai, K., Hyashi, S., Hirai, K., Oguma, K
Organizer
81thNippon Saikin Gakkai
Place of Presentation
OSAKA
Year and Date
2006-03-25
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Presentation] Expression of endocytoric receptor DEC205 in mdcrophagei Helicobacter pylori infection
Author(s)
Yokita, K., Zhao, Y., Fiijirnoto, K., Ayada, K., Hirai, K., Ogama, K
Organizer
107th General Meeting Society for Microbiology
Place of Presentation
TORONT
Description
「研究成果報告書概要(欧文)」より
Related Report
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