能增强了在血液恶性瘤上输注的供体淋巴细胞的移植对瘤效应
Yan Wei1, Jiayuan Guo2, Ning Lu1
1Department of Hematology, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, China.
Hematological oncology
|July 27, 2023
概括
在输注捐赠淋巴细胞 (DLI) 后,高血清水平与复发性血液恶性瘤患者的更好的缓解和存活率相关. 增强了周围血液单核细胞 (PBMC) 的杀伤瘤的能力.
科学领域:
- 免疫学 免疫学 免疫学
- 血液学 血液学 血液学
- 在瘤学瘤学.
背景情况:
- 供体淋巴细胞输注 (DLI) 对于通过移植与瘤 (GVT) 效应治疗血造干细胞移植后复发性血液瘤至关重要.
- 在免疫力中的作用是公认的,但它对DLI有效性及其对外周血液单核细胞 (PBMC) 瘤杀伤的影响仍然未得到充分探索.
研究的目的:
- 为了研究血清水平和患者在复发性血液恶性瘤的DLI后的患者结果之间的关联.
- 探索在DLI衍生的PBMCs细胞毒性功能的体外作用,并阐明潜在的机制.
主要方法:
- 对81名因复发性血液性恶性瘤而接受DLI的患者的临床数据的回顾性分析.
- 在体外实验中评估对PBMC细胞毒性对血液性恶性瘤细胞的影响及其对LFA-1/ICAM-1相互作用的影响.
主要成果:
- 较高的DLI后血清水平与增加的完全缓解 (CR) 或部分缓解 (CR / PR) 率和改善的生存率有显著联系.
- DLI后血清水平被确定为整体存活时间的独立风险因素.
- 实验室研究证实,的增加增强了PBMC细胞毒性功能,并可能通过LFA-1刺激来调节这一功能.
结论:
- 血清水平显著影响血液恶性瘤中由供体淋巴细胞介导的免疫反应.
- 在DLI后保持足够的水平可能会提高治疗疗效和患者的存活率.
- 增强PBMC细胞毒性,可能通过LFA-1调节,需要进一步调查.
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