Activation of intestinal mucosal immunization via probiotic strain with the mechanism of Cd1d and NKT cell
Project/Area Number |
21591301
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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 |
Infectious disease medicine
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Research Institution | Tokyo Medical University |
Principal Investigator |
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Project Period (FY) |
2009 – 2011
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Project Status |
Completed (Fiscal Year 2011)
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Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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Keywords | 腸管免疫 / 腸内細菌 / bacterial translocation / 免疫不全 / CD1d / NKT細胞 / 菌血症 / プロバイオティクス / germ-free / 緑膿菌 |
Research Abstract |
We studied the host mechanisms involved in controlling intestinal colonization with commensal bacteria. Under specific pathogen. free or germ-free conditions, intragastric administration of Pseudomonas aeruginosa, E. coli, Staphylococcus aureus, or Lactobacillus gasseri resulted in increased colonization of the small intestine and bacterial translocation in mice lacking Cd1d, compared with wild type mice. In contrast, activation of Cd1d-restricted T cells(NKT cells) withα-galactosylceramide caused diminished intestinal colonization with the same bacterial strains. In vitro data suggest that NKT cells were shown to induce the release of lysozyme from intestinal crypts. These data support a role for Cd1d in regulating intestinal colonization through mechanisms that include the control of Paneth cell function.
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Report
(4 results)
Research Products
(21 results)
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[Journal Article] Cd1d-dependent regulation of bacterial colonization in the intestine of mice2009
Author(s)
Nieuwenhuis EE, Matsumoto T, Lindenbergh D, Willemsen R, Kaser A, Simons-Oosterhuis Y, Brugman S, Yamaguchi K, Ishikawa H, Aiba Y, Koga Y, Samsom JN, Oshima K, Kikuchi M, Escher JC, Hattori M, Onderdonk AB, Blumberg RS
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Journal Title
J Clin Invest
Volume: 119(5)
Issue: 5
Pages: 1241-50
DOI
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