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2022 Fiscal Year Final Research Report

Exploring the mechanisms of carcinogenesis through the aberrant alternative splicing in head and neck cancer

Research Project

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Project/Area Number 18K16860
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56050:Otorhinolaryngology-related
Research InstitutionTokai University

Principal Investigator

Akihiro Sakai  東海大学, 医学部, 准教授 (20384886)

Project Period (FY) 2018-04-01 – 2023-03-31
Keywords選択的スプライシング / 頭頸部癌 / CPSF1
Outline of Final Research Achievements

We investigated the mechanism of carcinogenesis via ASEs in HNC using RNA sequencing and examined. First, we selected candidate genes from splicing-related genes using TCGA data, and examined the phenotypes of the candidate genes using HNC cell lines. As a result, several genes were selected as candidate genes. Next, after creating overexpression and knockdown cell lines, RNA was extracted, and ASEs induced were identified by RNA-Seq analysis. The results showed that splicing-related gene aberrations induced ASEs of many oncogenes. Abnormalities in splicing-related genes induce ASEs in HNC and may be involved in carcinogenesis.

Free Research Field

頭頸部癌

Academic Significance and Societal Importance of the Research Achievements

遺伝子変異以外の発癌機構として遺伝子発現の下流である転写後調節レベルの選択的スプライシングによる発癌機構が明らかになってきている。このスプライシングによる発癌機構が頭頸部癌の発癌に重要な役割を果たしている可能性が十分あると考え今回の研究を行った。本研究によりスプライシング関連遺伝子CPSF1の遺伝子変異は癌関連遺伝子のASEを幅広く誘発し、CPSF1の発現異常は、頭頸部癌においてASEを誘発することにより、発がんに関与している可能性があることが判明した。さらなる研究により頭頸部癌の発癌機構解明、予後向上に貢献できる可能性がある。

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Published: 2024-01-30  

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