| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Outline of Final Research Achievements |
Abundant glycoproteins exist in bone resorption pits, whereas their physiological roles remain unknown. In this study, I observed that glycoproteins sticking to the surface of resorption pits were produced by mature osteoclasts, but not osteoclast precursors. I also found a novel lectin that tightly bound to a bone reporption pit by lectin microarray analysis, and this lectin specifically recognized osteoclasts and blood vessels in vivo. Matrix metalloproteinase was identified as a major protein that bound to the lectin in those mature osteoclast secreted. Finally, the osteoblast culture experiment suggested the possibility that bone resorption pits could modulate osteoblast migration.
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