Identification and analysis of chondroitin sulfates which regulate bone remodeling, and control of bone mass

About This Project

Japan Grant Number
JP23780293 (JGN)
Funding Program
Grants-in-Aid for Scientific Research
Funding Organization
Japan Society for the Promotion of Science

Kakenhi Information

Project/Area Number
23780293
Research Category
Grant-in-Aid for Young Scientists (B)
Allocation Type
  • Multi-year Fund
Review Section / Research Field
  • Biological Sciences > Agriculture > Zootechnical science/Veterinary medical science > Basic veterinary science/Basic zootechnical science
Research Institution
  • Tottori University
Project Period (FY)
2011 〜 2013
Project Status
Completed
Budget Amount*help
4,420,000 Yen (Direct Cost: 3,400,000 Yen Indirect Cost: 1,020,000 Yen)

Research Abstract

In present study, I investigated the osteoclast inhibition ability in CS and the mechanism how CS inhibit osteoclast differentiation in vitro. CS was significantly inhibited the number of tartrate-resistance acid phosphatase (TRAP)-positive multinucleated cells and bone resorption activity in pit formation assay.In quartz-crystal microbalance method, CS revealed the binding ability to RANKL and interrupted binding of RANK to RANKL. Furthermore, CS reduced the phosphorylation of extracellular ERK in pre-osteoclast cells. These results indicate that CS suppress osteoclast size and osteoclastogenesis by binding to RANKL and inhibited RANK signal pathway.

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