全基DNT细胞疗法与T细胞协同作用,促进抗白血病活动,同时抑制GvHD
Jongbok Lee1,2, Hyeonjeong Kang1,3, Branson Chen1
1Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada.
Journal of experimental & clinical cancer research : CR
|January 28, 2025
概括
双阴性T细胞 (DNTs) 增强白血病细胞的杀死,并在全源干细胞移植后预防移植对宿主疾病 (GvHD). DNTs为接受移植的白血病患者改善结果提供了一个有希望的策略.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 细胞疗法细胞疗法
背景情况:
- 全基性造血干细胞移植 (allo-HSCT) 为白血病提供治疗潜力,但面临疾病复发和移植对宿主疾病 (GvHD) 的挑战.
- 传统的T细胞 (Tconv) 对抗白血病反应至关重要,但也调解GvHD,造成治疗困境.
研究的目的:
- 研究双阴性T细胞 (DNTs) 对Tconv细胞抗白血病和GvHD诱导活动的影响.
- 探索DNT作为alo-HSCT的潜在辅助疗法,以管理复发和GvHD.
主要方法:
- 在抗白血病背景下研究了DNT和Tconv细胞的协同效应.
- 研究了DNT调节Tconv细胞活动的机制,包括可溶性因子释放和CD18依赖的细胞毒性.
- 评估了DNTs对Tconv细胞GvHD诱导的影响.
主要成果:
- DNT与Tconv细胞协同作用,增强抗白血病活性,主要是通过激活Tconv细胞的可溶性因子.
- DNTs通过CD18依赖的细胞毒性对增殖的Tconv细胞抑制了GvHD诱导的Tconv细胞活性.
- DNTs的免疫效应取决于上下文,受白血病细胞存在或不存在的影响.
结论:
- DNTs具有双重功能,促进抗白血病反应,同时抑制GvHD.
- 通过同时解决白血病复发和GvHD,DNT显示出作为有效辅助疗法的潜力,以改善allo-HSCT的结果.
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