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2020 Fiscal Year Final Research Report

Molecular mechanism of tumor progression by the regulation of glucose and lipid metabolism

Research Project

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Project/Area Number 17K08672
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Pathological medical chemistry
Research InstitutionJikei University School of Medicine

Principal Investigator

Yogosawa Satomi  東京慈恵会医科大学, 医学部, 助教 (60392437)

Co-Investigator(Kenkyū-buntansha) 吉田 清嗣  東京慈恵会医科大学, 医学部, 教授 (70345312)
Project Period (FY) 2017-04-01 – 2021-03-31
Keywords癌 / 脂質代謝 / リン酸化酵素
Outline of Final Research Achievements

We have previously shown that dual-specificity tyrosine-phosphorylation-regulated kinase 2 (DYRK2) exerts anti-tumor effects in various cancer cells. However, physiological function of Dyrk2 in mice largely unknown.
In this study, we first present that the expression of PPAR gamma, a key regulatory gene of lipid metabolism, was increased in DYRK2-knockdown MDA-MB-468 cells but not MCF7 cells. This finding suggests that DYRK2 may regulate the expression level of PPAR gamma in a subtype-dependent manner. We next investigate the phenotypes of Dyrk2-deficient mice. Dyrk2-deficient mice exhibited sudden death soon after birth due to respiratory failure. Furthermore, Dyrk2-deficient mice were found to show developmental abnormalities and congenital malformations of multiple organs. Taken together, we demonstrated that Dyrk2 is essential for embryonic development and provide a basis for improving our understanding of embryonic development and refractory pediatric disease.

Free Research Field

腫瘍学

Academic Significance and Societal Importance of the Research Achievements

DYRK2は多数の癌において癌抑制因子として機能することがわかっている重要な分子である。しかしながら、DYRK2のマウス個体レベルでの生理的意義は全く不明である。本研究では、Dyrk2欠損マウスを作製し解析を行った。研究成果として、Dyrk2欠損マウスは、上気道を含む呼吸器の形成異常による呼吸不全を引き起こし、出生直後致死となることがわかった。また、Dyrk2欠損マウスは、多くの組織形成異常の表現型を示した。以上のことから、Dyrk2はマウスの生存に必須であり、Dyrk2欠損マウスが先天性奇形症候群の病態を解明する有用なモデルとなる可能性が示唆され、今後更なる研究が期待される。

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Published: 2022-01-27  

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