潜伏するHIVを 変換可能なCAR-T細胞で攻撃する 適応性の高い殺戮プラットフォーム
Eytan Herzig1, Kaman Chan Kim2, Thomas A Packard1
1Gladstone Center for HIV Cure Research, Gladstone Institute of Virology and Immunology, San Francisco, CA 94158, USA; Departments of Medicine and Microbiology and Immunology, University of California, San Francisco, San Francisco, CA 94143, USA.
Cell
|November 1, 2019
まとめ
新しい変換可能なCAR-T細胞プラットフォームは,潜伏するHIV貯蔵庫を含むHIVに感染した細胞を効果的に標的にし,排除します. この革新的なアプローチは ウイルスに対する免疫反応を強化することで HIV撲滅の有望な戦略を提供します
科学分野:
- 免疫学
- ウイルス学
- 細胞療法
背景:
- HIVの根絶には 潜伏するHIV貯蔵庫の減少が不可欠です
- 現在の方法は 感染した細胞を再活性化して 排除することに 依存しています
- 内生性細胞毒性Tリンパ球 (CTL) は,疲労とウイルスの脱出による貯蔵庫の浄化に制限があります.
研究 の 目的:
- 潜伏するHIV貯蔵庫を標的とした普遍的なCAR-T細胞プラットフォームを設計し評価する.
- 広く中和する抗HIV抗体で武装したCTLの有効性を評価する.
主な方法:
- エンジニアリングされたCTLを使用した変形可能なCAR-Tセルプラットフォームの開発.
- 様々な組織 (血液,桃体,臓) のHIV感染したCD4T細胞を殺すための変換可能なCAR-T細胞の能力をテストする.
- 抗レトロウイルス治療を受けたHIV感染者の細胞における誘導性HIV貯蔵体の殺滅を評価する.
主要な成果:
- 変換可能なCAR- T細胞は,HIV感染したCD4T細胞を効果的に殺したが,HIV抗体で武装した場合は,未感染細胞は殺さなかった.
- このプラットフォームは,治療を受けた個体からの細胞の誘導性HIV貯蔵庫を48時間以内に減少させる効果を示した.
- モジュール性は,複数の抗体で多重化することを可能にし,幅と制御を強化します.
結論:
- 変換可能なCAR-T細胞プラットフォームは 潜伏するHIV貯蔵体を攻撃する 有望なツールです
- このT細胞治療は より効果的なHIV治療の 可能性を示しています
- HIVに感染した細胞をターゲットにすることで 柔軟性や制御が向上します
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