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Elucidation of mechanism of activation of JAK2 in myeloproliferative disease with CALR mutation

Research Project

Project/Area Number 16K09849
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Hematology
Research InstitutionKyushu University (2018-2019)
Kurume University (2016-2017)

Principal Investigator

Nonami Atsushi  九州大学, 医学研究院, 助教 (00758419)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords骨髄増殖性疾患 / calreticulin / 骨髄増殖性腫瘍 / Calreticulin / 分子標的治療
Outline of Final Research Achievements

Novel mutation of myeloproliferative neoplasm wituout JAK2/TPOR mutation was identified, however its mechanism of pathogenesis was unknown. Our reserch revealed that TPOR was despensable in the pathogenesis of MPN with CALR mutation, and it induced activation of JAK-STAT pathway.

Academic Significance and Societal Importance of the Research Achievements

現在MPNに対する治療には、抗がん剤であるハイドロキシウレア、JAK阻害剤であるルキソニチニブなどが投与されるが、効果は十分でない。CALRはシャペロンタンパクであり、直接の機能阻害は困難と考えられるが、この新知見により、変異CALR 陽性MPNの治療として現行の治療薬だけでなく、TPORの機能阻害によっても治療効果が期待できることが判明し、これにより症状や予後の改善につながる可能性がある。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2021-02-19  

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