Macrophages conduct the dormancy of Mycobacterium tuberculosis
Project/Area Number |
24790421
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Bacteriology (including Mycology)
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Research Institution | Kyoto Prefectural University |
Principal Investigator |
OKA Mayuko 京都府立大学, 生命環境科学研究科(系), 准教授 (40347498)
|
Project Period (FY) |
2012-04-01 – 2014-03-31
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
|
Keywords | マクロファージ / 結核 / HIF-1alpha / 糖代謝 / 低酸素 |
Research Abstract |
For intracellular replication of Mycobacterium tuberculosis, glucose is considered one of dominant carbon sources but it is also important for energy production and maintenance cellular functions of the macrophages. However it is unknown how M. tuberculosis infection impacts on the glucose metabolism of the macrophages and in turn, how it affects on the virulence of this pathogen. Hypoxia-inducible factor-1alpha (HIF-1) is one of master regulators of glucose metabolism. In this study we examined whether that HIF-1 has some affects on intracellular growth of M. tuberculosis. These results shows that HIF-1 protein down-regulates cellular concentration of pyruvate in the intracellular bacterial pathogen-infected macrophages via enhancing LDH-A level, and thus attenuates intracellular replication of M. tuberculosis. Our data demonstrate that regulation of glucose metabolism is critical basic mechanism in controlling intracellular pathogen.
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Report
(3 results)
Research Products
(28 results)
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[Journal Article] Lipid synthesis is promoted by hypoxic adipocyte-derived exosomes in 3T3-L1cells2014
Author(s)
Sano S, Izumi Y, Yamaguchi T, Yamazaki T, Tanaka M, Shiota M, Osada-Oka M, Nakamura Y, Wei M, Wanibuchi H, Iwao H, Yoshiyama M.
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Journal Title
Biochem Biophys Res Commun.
Volume: 445
Issue: 2
Pages: 327-33
DOI
Related Report
Peer Reviewed
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[Journal Article] Antigen 85A and mycobacterial DNA-binding protein 1 are targets of immunoglobulin G in individuals with past tuberculosis2013
Author(s)
Osada-Oka M, Tateishi Y, Hirayama Y, Ozeki Y, Niki M, Kitada S, Maekura R, Tsujimura K, Koide Y, Ohara N, Yamamoto T, Kobayashi K, Matsumoto S
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Journal Title
Microbiol Immunol
Volume: 57(1)
Pages: 30-7
Related Report
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[Journal Article] Tolvaptan attenuates left ventricular fibrosis after acute myocardial infarction in rats2013
Author(s)
Yamazaki T, Nakamura Y, Shiota M, Osada-Oka M, Fujiki H, Hanatani A, Shimada K, Miura K, Yoshiyama M, Iwao H, Izumi Y
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Journal Title
J Pharmacol Sci
Volume: 123(1)
Pages: 58-66
Related Report
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[Journal Article] Tolvaptan attenuates left ventricular fibrosis after acute myocardial infarction in rats.2013
Author(s)
Yamazaki T, Nakamura Y, Shiota M, Osada-Oka M, Fujiki H, Hanatani A, Shimada K, Miura K, Yoshiyama M, Iwao H, Izumi Y
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Journal Title
J Pharmacol Sci.
Volume: 20
Pages: 58-66
Related Report
Peer Reviewed
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[Journal Article] Tolvaptan improves left ventricular dysfunction after myocardial infarction in rats2012
Author(s)
Yamazaki T, Izumi Y, Nakamura Y, Yamashita N, Fujiki H, Osada-Oka M, Shiota M, Hanatani A, Shimada K, Iwao H, Yoshiyama M
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Journal Title
Circ Heart Fail
Volume: 5(6)
Pages: 794-802
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