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2022 Fiscal Year Final Research Report

The effect of the stiffness of the original tissue or surrounding tissue on the pathogenesis of desmoid-type fibromatosis

Research Project

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Project/Area Number 20K16328
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 50010:Tumor biology-related
Research InstitutionNagoya University

Principal Investigator

SAKAI TOMOHISA  名古屋大学, 医学部附属病院, 病院助教 (40821971)

Project Period (FY) 2020-04-01 – 2023-03-31
Keywordsデスモイド
Outline of Final Research Achievements

On the primary cultured cells from desmoid-type fibromatosis, we confirmed that α-SMA protein, which is strongly expressed in myofibroblasts, and β-catenin protein, which is known to be expressed and accumulated in the nucleus in desmoid-type fibromatosis, are upregulated. In addition, immunofluorescence staining confirmed the expression of the mechanical signal receptor Trpv4, which was previously reported to be expressed in mesenchymal cells, in desmoid-type fibromatosis cultured cells.
As an approach based on clinical findings, we examined the clinical outcome of conservative treatment for desmoid-type fibromatosis and the risk of progression and treatment intervention. Cases with neck lesions and CTNNB1 S45F mutations were intervention risks.

Free Research Field

医歯薬学

Academic Significance and Societal Importance of the Research Achievements

当院において半年以上の経過観察が可能であった168病変を対象として検討を行い、168病変中44%に当たる74病変で治療介入が行われていた。頸部発生例では画像上の増大とは有意な関連を示さなかったが、他の部位と比較し有意に治療介入に至るリスクが高かった。他の治療介入リスクとしてはCTNNB1 S45F変異を持つ例が単変量・多変量解析ともに治療介入リスクであった。
この結果はアジアからの報告として最大であること、また頸部が治療介入のリスクであることを示唆することができ、有用な報告であると考える。本研究成果は、国際科学誌『Cancer Medicine』に掲載された。

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Published: 2024-01-30  

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