| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Research Abstract |
Amelogenin, the major component of enamel matrix derivative (Straumann® Emdogain), is a suggested bioactive candidate for promoting the regeneration of bone and periodontal tissues. In this study, we combined affinity chromatography and proteomic analysis to characterize amelogenin-binding proteins in an osteoblast cell line. Among the identified amelogenin-interacting proteins, we validated the biological interaction of amelogenin with Grp78, which was identified in both cytosolic and membrane-enriched fractions. We demonstrated that the interaction of amelogenin with Grp78 contributed to cell proliferation, rather than correlate with the osteogenesis in SaOS-2 cells.
These findings suggest that the differential effects of amelogenin-derived osteoblast activation could be of potential clinical significance for understanding the cellular and molecular bases of amelogenin-induced periodontal tissue regeneration.
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