| Project/Area Number |
25670808
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Conservative dentistry
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| Research Institution | Niigata University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
YOSHIBA Nagako 新潟大学, 医歯学総合病院, 講師 (10323974)
YOSHIBA Kunihiko 新潟大学, 医歯学系, 准教授 (30220718)
KANEKO Tomoatsu 新潟大学, 医歯学総合病院, 助教 (70345297)
SHIGETANI Yoshimi 新潟大学, 医歯学総合病院, 助教 (80397132)
OHKURA Naoto 新潟大学, 医歯学総合病院, 医員 (00547573)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 歯内治療学 / 歯髄組織再生 / 歯髄幹細胞 / マクロファージ / スキャホールド |
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| Outline of Final Research Achievements |
This study aimed to examine the role of macrophages in the regeneration of dental pulp tissues. After co-implantation of ED2-positive macrophages isolated from rat dental pulp with stem cells into the coronal pulp chamber of pulpotomized rat molars, expression of macrophage markers in the engineered pulp tissue was analyzed. When IL-4 treated ED2-positive macrophages were co-implanted with stem cells, the engineered tissues showed a significant increase in the number of ED2-positive cells and the expression of CD34 and CD163 mRNAs. These findings suggest that M2 macrophages show proliferation and act as wound healing macrophages after co-implantation of macrophages with stem cells.
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