ミエロイド細胞 トレムダウン 抗腫瘍反応
Aimée Bugler-Lamb1, Martin Guilliams1
1Laboratory of Myeloid Cell Biology in Tissue Homeostasis and Regeneration, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
Cell
|August 22, 2020
まとめ
研究者らは,TREM2 (トリガリング受容体発現ミエロイド2) を阻害すると,抗腫瘍免疫が強化されると発見しました. TREM2阻害と免疫チェックポイント治療を併用すると,骨髄細胞を再プログラムすることで,腫瘍の成長が著しく減少します.
科学分野:
- 免疫学
- 腫瘍学
- 細胞生物学
背景:
- 腫瘍に関連した骨髄細胞は,しばしば免疫抑制性腫瘍の微環境を作り出します.
- TREM2 (トリガリング受容体発現ミエロイド2) は,腫瘍内のミエロイド細胞機能に関与しています.
研究 の 目的:
- 腫瘍に関連した骨髄細胞の免疫抑制特性を調節するTREM2の役割を調査する.
- TREM2阻害と免疫チェックポイント療法の組み合わせの治療の可能性を評価する.
主な方法:
- 腫瘍に関連した骨髄細胞におけるTREM2の機能の分析
- TREM2阻害と免疫チェックポイント阻害剤を組み合わせた実験モデル.
主要な成果:
- TREM2阻害は,腫瘍に関連した骨髄細胞の免疫抑制プロフィールを変化させます.
- TREM2阻害と免疫チェックポイント療法による併用療法により,抗腫瘍免疫反応が強化されました.
- この併用療法により,腫瘍の成長が著しく減少しました.
結論:
- TREM2は,免疫抑制性腫瘍の微小環境を確立する上で重要な役割を果たします.
- 免疫チェックポイント療法と組み合わせたTREM2をターゲットにすることは,がん治療の有望な戦略です.
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