Study of osteo-nociceptive-immune system
Project/Area Number |
15H05686
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Research Category |
Grant-in-Aid for Young Scientists (A)
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Allocation Type | Single-year Grants |
Research Field |
Functional basic dentistry
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Research Institution | Osaka University |
Principal Investigator |
Maruyama Kenta 大阪大学, 免疫学フロンティア研究センター, 特任助教(常勤) (60724119)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥23,790,000 (Direct Cost: ¥18,300,000、Indirect Cost: ¥5,490,000)
Fiscal Year 2017: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2016: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2015: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
|
Keywords | 骨代謝 / 真菌感染 / 痛覚 / 炎症 / 骨髄炎 / 真菌細胞壁 / 急性疼痛 / アロディニア / ATP / 疼痛 / 感染 |
Outline of Final Research Achievements |
It is established that nociceptor innervation occurs in skin and bone, but the mechanisms of nociceptive modulation in fungal inflammation remain unclear. In this study, we show that C. albicans stimulates Nav1.8-positive nociceptors via the β-glucan receptor Dectin-1 to induce CGRP. This induction of CGRP is independent of Bcl-10 or Malt-1 but dependent on TRPV1/TRPA1 ion channels. Hind paw β-glucan injection after Nav1.8-positive nociceptor ablation or in TRPV1/TRPA1 deficiency showed dramatically increased osteo-inflammation accompanied by impaired CGRP production. Strikingly, CGRP suppressed β-glucan-induced inflammation and osteoclast multinucleation via direct suppression of NF-κB p65 by the transcriptional repressor Jdp2 and inhibition of actin polymerization, respectively. These findings clearly suggest the role of Dectin-1-mediated sensocrine pathways in the resolution of fungal osteo-inflammation.
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Report
(4 results)
Research Products
(31 results)
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[Journal Article] Antitumor effect of Batf2 through IL-12 p40 up-regulation in tumor-associated macrophages.2017
Author(s)
Kanemaru H, Yamane F, Fukushima K, Matsuki T, Kawasaki T, Ebina I, Kuniyoshi K, Tanaka H, Maruyama K, Maeda K, Satoh T, Akira S.
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Journal Title
Proc Natl Acad Sci U S A
Volume: 114
Issue: 35
DOI
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Peer Reviewed / Open Access
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[Journal Article] Plasmodium products persist in the bone marrow and promote chronic bone loss2017
Author(s)
Lee MSJ, Maruyama K, Fujita Y, Konishi A, Lelliott PM, Itagaki S, Horii T, Lin JW, Khan SM, Kuroda E, Akira S, Ishii KJ, Coban C.
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Journal Title
Science Immunology
Volume: 2
Issue: 12
Pages: 2-2
DOI
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Bone-protective Functions of Netrin 1 Protein2016
Author(s)
Kenta Maruyama, Takahiko Kawasaki, Masahide Hamaguchi, Motomu Hashimoto, Moritoshi Furu, Hiromu Ito, Takao Fujii, Naoki Takemura, Thangaraj Karuppuchamy, Takeshi Kondo, Takumi Kawasaki, Masahiro Fukusaka, Takuma Misawa, Tatsuya Saitoh, Yutaka Suzuki, Mikael M Martino, Yutaro Kumagai, and Shizuo Akira
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Journal Title
Journal of Biological Chemistry
Volume: 291
Issue: 46
Pages: 23854-23868
DOI
Related Report
Peer Reviewed
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[Patent(Industrial Property Rights)] 組織損傷治療剤2016
Inventor(s)
丸山健太、ミカエルマルティーノエム、審良静男
Industrial Property Rights Holder
丸山健太、ミカエルマルティーノエム、審良静男
Industrial Property Rights Type
特許
Industrial Property Number
2016-036869
Filing Date
2016-03-16
Related Report