2022 Fiscal Year Final Research Report
Establishment of Dis3-deficient myeloma model mouse
Project/Area Number |
20K08734
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 54010:Hematology and medical oncology-related
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Research Institution | Kumamoto University |
Principal Investigator |
Ohguchi Hiroto 熊本大学, 大学院先導機構, 准教授 (70451557)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | 多発性骨髄腫 / 造血 / モデルマウス |
Outline of Final Research Achievements |
DIS3 deletions/mutations are frequently observed in patients with multiple myeloma; however, the physiological functions of DIS3 in hematopoiesis and the pathological significance of DIS3 deficiency remain poorly understood. In this study, we generated hematopoietic cell-specific Dis3 knockout mice and found that Dis3 is indispensable for hematopoiesis. On the other hand, late B cell-specific Dis3 knockout mice did not develop plasma cell neoplasm, suggesting that DIS3 deficiency is not sufficient for development of multiple myeloma.
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Free Research Field |
造血器悪性腫瘍における転写エピゲノム制御
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Academic Significance and Societal Importance of the Research Achievements |
本研究により、これまで不明であった造血におけるDIS3の役割、とくに、造血幹細胞や造血前駆細胞の維持に必須であることを個体レベルで初めて明らかにすることができた。また、DIS3欠損のみでは多発性骨髄腫は発症しないというエビデンスを示した。今後、治癒不明の多発性骨髄腫の発症機序を理解していく上での一助になることが期待される。
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