2023 Fiscal Year Final Research Report
Elucidation of cancer-specific re-splicing regulatory mechanisms as a basis for new cancer suppression strategies
Project/Area Number |
21K15538
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 50010:Tumor biology-related
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Research Institution | National Cancer Center Japan (2023) Fujita Health University (2021-2022) |
Principal Investigator |
Fujita Kenichi 国立研究開発法人国立がん研究センター, 研究所, 研究員 (70816884)
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Project Period (FY) |
2021-04-01 – 2024-03-31
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Keywords | 再スプライシング / がん / EJC複合体 |
Outline of Final Research Achievements |
The precursors mRNA transcribed from genes and undergo precisely splicing to become mature mRNAs that realize higher-order biological phenomena. Therefore, failure of the splicing mechanism causes various diseases and cancers. However, it is not fully understood why the accurate splicing mechanism in normal cells is disrupted in cancer. As an approach to elucidate the mechanism, we focused on the phenomenon of re-splicing, in which the splicing completion mechanism is disrupted and mature mRNA is re-spliced in a cancer-specific manner. In this study, we will comprehensively identify re-splicing products in various cancer cells, and by elucidating the full picture of the re-splicing regulatory mechanism, we will establish a basis for cancer suppression strategies based on re-splicing inhibition.
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Free Research Field |
分子生物学
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Academic Significance and Societal Importance of the Research Achievements |
当研究室が過去に発見したTSG101遺伝子由来の再スプライシング産物は、咽頭癌細胞の増殖を促進し、その浸潤と転移を促進することを明らかにしている。この事実は、発癌や癌の悪性化を理解するために、トランスクリプトーム異常を同定し、産出機構を解明することに対し、力強い動機づけとなっている。よって本研究による再スプライシング産物の網羅的同定は、新たな癌悪性化機構への理解の進展に繋がる。加えて再スプライシング制御機構の解明は、その阻害に基づいた悪性癌の治療へ向けた基盤となることが期待される。このような解析は世界的に例がない未開拓分野であり、高い社会的意義を持つ研究である。
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