皮膚 の 設計 さ れ た バクテリア は,メラノーマ に 対し て 抗腫瘍 T 細胞 の 反応 を 誘発 する
Y Erin Chen1,2,3,4, Djenet Bousbaine1,2,3, Alessandra Veinbachs1,2,3
1Department of Bioengineering, Stanford University, Stanford, CA 94305, USA.
Science (New York, N.Y.)
|April 13, 2023
まとめ
遺伝子組み換え皮膚細菌 Staphylococcus epidermidisは 腫瘍特異のT細胞を誘発することができます この予防的な免疫反応は 癌細胞を標的とし 癌の免疫療法に 新たな治療戦略を提示します
科学分野:
- 微生物学
- 免疫学
- 腫瘍学
背景:
- コメンサル細菌は感染することなく 適応性免疫反応を誘発できます
- 開始細菌によって誘発されるT細胞の機能は完全に理解されていません.
- アンチコンマスの免疫を理解することは,治療上の応用にとって極めて重要です.
研究 の 目的:
- コメンスアル細菌によって誘発されたT細胞の機能特性を定義する.
- 癌に対する免疫の 治療の可能性を探るためだ
主な方法:
- 腫瘍アンチゲンを発現させる
- 改造された細菌でコロニー化されたマウスのT細胞反応を研究した.
- T細胞の循環,腫瘍への浸透,細胞毒性の評価
主要な成果:
- エンジニアリングされたS.epidermidisは 循環する腫瘍特異のT細胞を成功裏に誘導しました
- これらのT細胞は 局所的および転移性腫瘍の両方に浸透しました
- T細胞は腫瘍細胞に対して 細胞毒性を示した.
結論:
- 治療的に重要な抗腫瘍T細胞反応を誘発するように設計することができます.
- このアプローチは,皮膚コロニストに対する免疫反応を,遠隔の治療標的に向けます.
- エンジニアリング・コメンサルは 癌の免疫療法に 新しい戦略を提示しています
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