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Why does rheumatoid arthritis synovitis rarely involve DIP joints?

Research Project

Project/Area Number 16K15513
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Collagenous pathology/Allergology
Research InstitutionInstitute of Physical and Chemical Research (2017)
Kyoto University (2016)

Principal Investigator

TERAO CHIKASHI  国立研究開発法人理化学研究所, 統合生命医科学研究センター, 上級研究員 (60610459)

Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords関節リウマチ / 自己免疫 / 免疫学 / 病理学 / プロテオーム
Outline of Final Research Achievements

Based on the fact that rheumatoid arthritis rarely involve DIP joints, I assumed that a distribution of protein in synovial tissues might be greatly different between DIP joints and other joints. Although I had tried to obtain human synovial tissues from DIP joints, almost none of the institutions had DIP synovial tissues. Thus, I decided to use cynomolgus monkeys (Macaca fascicularis), which serve as a model of rheumatoid arthritis. I placed an order to Shin Nippon Biomedical Laboratories, Ltd to obtain synovial tissues from hand and foot DIP, PIP, MP, shoulder, elbow, hip, knee and ankle in three monkeys. We optimized conditions of extracting RNA from synovial tissues and extracted RNA from the specimens. I placed an order to Broad Institute in Boston to conduct RNA sequencing for a total of 96 samples allowing duplicates. Based on the RNA seq data which is a quite good data source of RA analysis, I have been working on analyzing the gene expression profiles in synovial tissues.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2019-03-29  

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