Understanding of host-pathogen interaction by using silkworm infection model
Project/Area Number |
23249009
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Environmental pharmacy
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Research Institution | The University of Tokyo |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
KAITO Chikara 東京大学, 大学院薬学系研究科, 准教授 (60420238)
MATSUMOTO Yasuhiko 東京大学, 大学院薬学系研究科, 助教 (60508141)
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Project Period (FY) |
2011-04-01 – 2014-03-31
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Project Status |
Completed (Fiscal Year 2013)
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Budget Amount *help |
¥48,620,000 (Direct Cost: ¥37,400,000、Indirect Cost: ¥11,220,000)
Fiscal Year 2013: ¥14,040,000 (Direct Cost: ¥10,800,000、Indirect Cost: ¥3,240,000)
Fiscal Year 2012: ¥14,040,000 (Direct Cost: ¥10,800,000、Indirect Cost: ¥3,240,000)
Fiscal Year 2011: ¥20,540,000 (Direct Cost: ¥15,800,000、Indirect Cost: ¥4,740,000)
|
Keywords | RNAの分解 / カイコ感染モデル / ブースト反応 / 抗菌ペプチド / 腸管出血性大腸菌 / O抗原 / O157:H7 / 補体経路 / カイコ / 感染症 / 黄色ブドウ球菌 / 病原性因子 / Apolipophorin / ムチン |
Research Abstract |
This study revealed that a novel virulence factor of Staphylococcus aureus regulates RNA degradation. The virulence factor modified RNA and made RNA insensitive to degradation by RNase. This finding indicates a novel regulatory mechanism of RNA degradation. This study also revealed that a hemolymph protein of silkworm inhibits virulence of S. aureus. The hemolymph protein bound S. aureus surfaces and inhibited expression of virulence genes. This finding indicates a novel defense system of host animal against pathogenic bacteria as well as a novel recognition system of S. aureus against host environment.
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Report
(4 results)
Research Products
(120 results)
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[Journal Article] Impact of psm-mec in the mobile genetic element on the clinical characteristics and outcome of SCCmec-II methicillin-resistant Staphylococcus aureus bacteraemia in Japan2014
Author(s)
Aoyagi T, Kaito C, Sekimizu K, Omae Y, Saito Y, Mao H, Inomata S, Hatta M, Endo S, Kanamori H, Gu Y, Tokuda K, Yano H, Kitagawa M, Kaku M
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Journal Title
Clin Microbiol Infect
Volume: (in press)
Issue: 9
Pages: 912-919
DOI
Related Report
Peer Reviewed
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[Journal Article] Long Noncoding RNA NEAT1-Dependent SFPQ Relocation from Promoter Region to Paraspeckle Mediates IL8 Expression upon Immune Stimuli2014
Author(s)
Imamura K, Imamachi N, Akizuki G, Kumakura M, Kawaguchi A, Nagata K, Kato A, Kawaguchi Y, Sato H, Yoneda M, Kai C, Yada T, Suzuki Y, Yamada T, Ozawa T, Kaneki K, Inoue T, Kobayashi M, Kodama T, Wada Y, Sekimizu K and Akimitsu N.
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Journal Title
Molecular cell
Volume: 53
Issue: 3
Pages: 393-406
DOI
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Peer Reviewed / Open Access
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[Journal Article] Inhibitory receptor PIR-B is exploited by Staphylococcus aureus for virulence2012
Author(s)
Nakayama M, Kurokawa K, Nakamura K, Lee BL, Sekimizu K, Kubagawa H, Hiramatsu K, Yagita H, Okumura K, Takai T, Underhill DM, Aderem A, Ogasawara K.
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Journal Title
J Immunol
Volume: 189
Issue: 12
Pages: 5903-5911
DOI
Related Report
Peer Reviewed
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[Journal Article] Independent recognition of Staphylococcus aureus by two receptors for phagocytosis in Drosophila2012
Author(s)
Shiratsuchi, A., Mori, T., Sakurai, K., Nagaosa, K., Sekimizu, K., Lee, B. L., Nakanishi, Y
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Journal Title
J. Biol. Chem
Volume: 287
Issue: 26
Pages: 21663-21672
DOI
Related Report
Peer Reviewed
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[Journal Article] Transcription and translation products of the cytolysin gene psm-mec on the mobile genetic element SCCmec regulate Staphylococcus aureus virulence2011
Author(s)
Kaito C., Saito, Y., Nagano, G., Ikuo, M., Omae, Y., Hanada, Y., Han, X., Kuwahara-Arai, K., Hishinuma, T., Baba, T., Ito, T., Hiramatsu, K., and Sekimizu K
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Journal Title
PLoS Pathog
Volume: 7
Issue: 2
Pages: e1001267-e1001267
DOI
Related Report
Peer Reviewed
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[Presentation] 新規機能性RNA psm-mecは agrA遺伝子の翻訳を抑制してメチシリン耐性黄色ブドウ球菌の病原性を抑制する2013
Author(s)
幾尾真理子, 齋藤裕樹, 大前陽輔, 毛瀚, 長野源太郎, 藤幸知子, 沼田俊介, 韓笑, 小幡佳津明, 長谷川節雄, 山口博樹, 猪口孝一, 伊藤輝代, 平松啓一, 伊藤孝司, 関水和久, 垣内力
Organizer
第86回日本生化学会大会
Place of Presentation
神奈川(横浜)
Related Report
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[Presentation] 新規機能性RNA psm-mecはagrA遺伝子の翻訳を抑制してメチシリン耐性黄色ブドウ球菌の病原性を抑制する2013
Author(s)
幾尾 真理子, 齋藤 裕樹, 大前 陽輔, 毛 瀚, 長野 源太郎, 藤幸 知子, 沼田 俊介, 韓 笑, 小幡 佳津明, 長谷川 節雄, 山口 博樹, 猪口 孝一, 伊藤 輝代, 平松 啓一, 伊藤 孝司, 関水 和久, 垣内 力
Organizer
第86回日本生化学会大会
Place of Presentation
パシフィコ横浜、神奈川
Related Report
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