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2023 Fiscal Year Final Research Report

Fatty acid 2-hydroxylase (FA2H) as an exacerbation factor for the development of breast cancer

Research Project

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Project/Area Number 21K12261
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 63030:Chemical substance influence on environment-related
Research InstitutionFukuyama University

Principal Investigator

Takeda Shuso  福山大学, 薬学部, 教授 (00460379)

Project Period (FY) 2021-04-01 – 2024-03-31
Keywords脂肪酸2位水酸化酵素 / FA2H / 環境化学物質 / 毒性指標 / 乳がん / Fatty acid 2-hydroxylase / PPARα
Outline of Final Research Achievements

We recently demonstrated that fatty acid 2-hydroxylase (FA2H), which is regulated by PPARα, stimulates the migration of ERα-negative breast cancer MDA-MB-231 cells. Exposure to perfluorooctanoic acid (PFOA) correlates with estrogen receptor (ER)-negative breast cancer risk, and it can activate peroxisome proliferator-activated receptor α (PPARα). However, there is no evidence for the relationship between PFOA exposure and PPARα-FA2H axis-driven cell migration. In this study, we demonstrated that in MDA-MB-231 cells, i) PFOA upregulates FA2H expression coupled with stimulation of PPARα-mediated transcription, ii) PFOA stimulates cell migration dependent on FA2H expression, and iii) PFOA relieves PPARβ/δ-mediated suppression of PPARα activity as a mechanism for upregulating FA2H.

Free Research Field

環境毒性学

Academic Significance and Societal Importance of the Research Achievements

本研究は、「健康体を病気にしないサイエンス」である衛生薬学を志向している。我々は日常的に環境化学物質に曝露されており、がんの発症リスク要因や悪性化の要因となることがある。本研究では、独自に見出だした知見を応用し、未解明である環境化学物質によるERαに依存しない乳がんの悪性化機構をFA2Hの発現と機能に注目して解明することを目指した。得られた知見は、毒性学の観点からも新たな毒性指標の確立に貢献することが期待される。

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Published: 2025-01-30  

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