| Project/Area Number |
25350548
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Biomedical engineering/Biomaterial science and engineering
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| Research Institution | Hokkaido University |
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Principal Investigator |
Semba Shingo 北海道大学, 医学(系)研究科(研究院), 特任助教 (40466496)
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| Co-Investigator(Kenkyū-buntansha) |
YASUDA Kazunori 北海道大学, 医学研究科, 教授 (20166507)
津田 真寿美 北海道大学, 医学(系)研究科(研究院), 講師 (30431307)
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| Co-Investigator(Renkei-kenkyūsha) |
TSUDA Masumi 北海道大学, 医学研究科, 講師 (30431307)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 再生医工材料 / 生体材料 / ダブルネットワークゲル / ハイドロゲル / 軟骨再生 / 再生医工学材料 |
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| Outline of Final Research Achievements |
It is known that PAMPS gel induces the spontaneous regeneration of damaged cartilage, however the detailed molecular mechanism remains unclear. In this study, we identified integrins as PAMPS-binding proteins and found that culturing on PAMPS gel drastically changed the activation of p38 MAP kinase in chondrocytic murine ATDC5 cell. It was also found that the gel enhanced the gene expression related with the extracellular matrix, and secreted extracellular matrix were accumulated in the gel, which enhanced the chondrogenic differentiation of ATDC5 cells cultured on PAMPS gel. These results suggest that PAMPS gel not only alters gene expression via intracellular signaling molecules, such as integrins and MAP kinases, but also functions as a molecular reservoir to accumulate the factors that promote cartilage differentiation.
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