生まれながらの巨大ネビの回帰とメラノーマの予防のための局所療法
Yeon Sook Choi1, Tal H Erlich1, Max von Franque2
1Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA; Department of Dermatology, Harvard Medical School, Massachusetts General Hospital, Boston, MA 02114, USA.
Cell
|May 13, 2022
まとめ
局所的な治療は,巨大先天性メラノサイト性ネビ (GCMN) に対して有望である. スクワリック酸ディビュタイレスター (SADBE) と他の薬剤は,GCMNに対する手術の代替手段として,有意な回復を達成した.
科学分野:
- 皮膚科
- 腫瘍学
- 遺伝学
背景:
- 巨大先天性メラノサイト性ネビ (GCMN) はNRASによって引き起こされる皮膚増殖です.
- これらのネビは,身体の広大な表面を覆い,メラノーマの変容のリスクを伴う.
- 現在の治療は 幼児期に大規模な手術を行うことが多いので 生涯にわたる困難を招きます
研究 の 目的:
- GCMNの治療のための局所薬剤の試験のための臨床前モデルの開発と利用.
- GCMNに対する外科的介入を回避する治療戦略を特定する.
- GCMNの増殖期と老化期の両方を標的とした治療法を探求する.
主な方法:
- 遺伝子組み換えマウスモデルとヒトの異種移植の開発
- MEK,PI3K,c-KIT阻害剤,およびスクワリック酸ディビュタイレスター (SADBE) を含む局所投与薬剤の試験
- GCMNモデルにおける治療法による回帰を誘発し,メラノーマの変容を防止する能力の評価
主要な成果:
- 臨床前モデルでは,メラノーマリスクを含むヒトのGCMNの組織学的および分子的特性を再現した.
- MEK,PI3K,c- KIT阻害剤,およびSADBEの皮膚投与は,重大な後退をもたらした.
- SADBEは先天的な免疫を誘発し,神経細胞を切除し,メラノーマを予防し,ヒトGCMNの異種移植を逆行させた.
結論:
- GCMNのメカニズム的な脆弱性を標的とした局所的な介入は可能である.
- SADBEは,GCMNを逆行させ,メラノーマを予防するのに有意な効果を示しています.
- これらの発見は,GCMNの子供に対する治療の選択肢を変更する局所的な治療の可能性を示唆しています.
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