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TP53およびFLCN遺伝子を含む多部位遺伝性腫瘍アレル症候群における多部位早期発症の非典型性皮膚繊維性ヒスティオシトーマ

Schaida Schirwani^1,2,3, Sylvia Ghattas⁴, Nicholas Wilson⁵

¹Dermatology department, University Hospital Southampton NHS Foundation Trust, Southampton, UK schaida.schirwani@uhs.nhs.uk.

Journal of medical genetics

|September 3, 2025

まとめ

この研究では,非典型の皮膚繊維性ヒスティオサイトマを患った16歳の少年において,マルチロカス遺伝性新生代謝症候群 (MINAS) の希少な症例が報告されています. 診断は新しいTP53と遺伝されたFLCN遺伝子変異と関連していました.

科学分野:

腫瘍学
遺伝学
皮膚科

背景:

Li-Fraumeni症候群 (TP53) とBirt-Hogg-Dubé症候群 (FLCN) は,異なるがん傾向症候群である.
マルチロカス継承性新生性アレル症候群 (MINAS) は,複数のがん傾向遺伝子の生殖線病原性変異 (GPV) を含む.

研究の目的:

MINASのユニークなケースを提示します.
非典型の皮膚繊維性ヒスティオサイトーマ (ACFHs) とTP53およびFLCNGPVの関連性を強調する.
異常な腫瘍のプレゼンテーションでMINASを考慮する重要性を強調する.

主な方法:

16歳の男性患者の症例報告
臨床的,組織病理学的,遺伝的分析
TP53とFLCNの病原性変異に対する遺伝子検査

主要な成果:

早期発症した ACFHを患った16歳の少年にMINASの診断
de novo TP53 GPVと父から受け継がれるFLCN GPVの特定
ACFHと組み合わせたTP53/FLCNGPVとの間に初めて報告された関連性.

結論:

MINASは,異常な腫瘍のフェノタイプを有する患者に考慮されるべきである.
珍しい遺伝的症候群の診断には総合的な遺伝子検査が不可欠です
パーソナライズされた監視戦略は,MINASの患者にとって必要である.

キーワード:

遺伝子発現

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