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Updated: Feb 11, 2026

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甲状腺乳頭癌の幹細胞様細胞におけるJAG1発現は予後不良を予測し、血管新生に関与する
Riho Yoshida-Minato1, Tetsuhiro Horie2,3, Mitsuharu Aga1
1Department of Otorhinolaryngology, Kanazawa Medical University, Kahoku, 920-0293, Ishikawa, Japan.
Discover oncology
|February 9, 2026
まとめ
甲状腺癌幹細胞(CSC)は再発を促進する。高い幹細胞性を持つ細胞はJAG1発現の増加を示し、予後不良および血管新生と関連し、新たな治療標的を提供する。
科学分野:
- 腫瘍学
- 分子生物学
- ゲノミクス
背景:
- 甲状腺癌幹細胞(CSC)は、腫瘍の再発および転移において重要である。
- CSCの特性と相互作用を理解することは、効果的な治療のために不可欠である。
研究 の 目的:
- 甲状腺CSC様細胞の特性、細胞間相互作用、予後予測遺伝子シグネチャーを調査する。
- 単一細胞RNAシーケンシング(scRNA-seq)および臨床データを解析し、新たな洞察を得る。
主な方法:
- Seuratを用いた2つの独立したscRNA-seqデータセット(GSE191288、GSE250521)の解析。
- CytoTRACEを用いた幹細胞性が高い(CSC様)細胞と幹細胞性が低い細胞の同定。
- タンパク質間相互作用(PPI)ネットワークおよび遺伝子オントロジー解析の構築。
- CellChatを用いた細胞間相互作用解析、およびTCGAデータを用いた生存解析。
主要な成果:
- 幹細胞性が高い細胞は、複数のデータセットで共通の遺伝子アップレギュレーションを示し、ハブ遺伝子は血管新生と関連していた。
- 幹細胞性が高い細胞(JAG1)と内皮細胞(NOTCH1/4)との間に有意な相互作用が見られた。
- 甲状腺癌患者におけるJAG1の高発現は、高い幹細胞性と予後不良と相関していた。
結論:
- 甲状腺CSC様細胞は、 distinctな遺伝子発現プロファイルを有する。
- JAG1-NOTCHシグナル伝達経路の相互作用は、甲状腺癌の進行に関与している。
- 本研究は、甲状腺CSCとその腫瘍微小環境との相互作用に関する新たな洞察を提供する。
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