| Project/Area Number |
26861797
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Orthodontics/Pediatric dentistry
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| Research Institution | Nagasaki University |
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Principal Investigator |
KOHARA Haruka 長崎大学, 医歯薬学総合研究科(歯学系), 特任研究員 (70623825)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 歯学 |
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| Outline of Final Research Achievements |
Interferon - interferon regulatory factors (IRFs) system is related to immunoreactions. Recently IRF-8, which is one of the IRFs, has been reported to negatively regulate the proliferation of osteoclast precursors induced by macrophage colony-stimulating factor (M-CSF) and ligand for receptor activator of nuclear factor kappa B (RANKL). In this study, we investigated the effects of IRF-4 on RANKL- (or TNF-alpha-) induced osteoclastogenesis.
Bone marrow cells from mice were cultured with M-CSF and RANKL. During osteoclastogenesis, the expression level of NFATc1 and IRF-4 mRNA were increased significantly. Moreover, the same dynamic state was shown also in osteoclastogenesis under M-CSF and TNF-alpha existence. This tendency was similarly observed for bone marrow macrophages. These results suggest that IRF-4 may involve the regulation of osteoclastogenesis.
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