CD155阻塞增强了对骨髓瘤瘤的全基性自然杀手细胞介导的抗瘤反应
Monica M Cho1, Longzhen Song1, Aicha E Quamine1
1Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA.
Journal for immunotherapy of cancer
|April 15, 2025
概括
在骨髓移植后以全基性自然杀手 (NK) 细胞向CD155可增强对骨髓瘤的移植对瘤的效果. 这种组合疗法在治疗移植后复发的固体瘤方面表现有前途.
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:
- 全基性骨髓移植 (alloBMT) 通过移植与瘤 (GVT) 效应治愈血液癌症,但对像骨髓瘤 (OS) 这样的固体瘤无效.
- 骨肉瘤表达CD155,它与自然杀手 (NK) 细胞上的抑制 (TIGIT,CD96) 和激活 (DNAM-1) 受体相互作用.
- 在alloBMT后向CD155是一种新的策略,可以潜在地增强GVT对OS的反应.
研究的目的:
- 为了研究结合通过收养转移的异性NK细胞 (alloNK) 与在aloBMT后的CD155阻塞用于治疗骨髓瘤的疗效.
- 阐明了针对OS的alloNK细胞激活背后的机制,重点关注DNAM-1和CD155.5的作用.
主要方法:
- 鼠NK细胞被活化,并以表型,细胞毒性和对表达CD155的OS细胞的细胞因子产生细胞因子的特征.
- 患有OS肺转移的小鼠接受了alloBMT和alloNK细胞输液,有或没有抗CD155阻塞,有些接受了抗DNAM-1预处理的alloNK细胞.
- 监测了瘤生长,移植与宿主疾病,存活率和肺组织基因表达.
主要成果:
- 当与CD155阻断相结合时,AlloNK细胞表现出对OS的增强细胞毒性,这也增加了NK细胞降粒和通过DNAM-1产生干扰素-玛.
- 在体内,用alloNK输液阻断CD155显著改善了alloBMT后复发性OS的小鼠的生存率.
- RNA微阵列显示CD155阻断高调细胞毒性基因和H60a,而抗DNAM-1治疗增加了抑制受体基因,表明DNAM-1:CD155参与驱动NK细胞激活.
结论:
- 与CD155阻断相结合的alloNK细胞输液是安全有效的,可以产生针对骨髓瘤的GVT效应,其好处部分通过DNAM-1进行调解.
- 了解控制NK细胞反应的受体相互作用的层次对于翻译NK细胞疗法和免疫检查点抑制在alloBMT后的固体瘤至关重要.
相关概念视频
Targeted Cancer Therapies
7.0K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.0K
Tumor Immunotherapy
2.5K
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
2.5K


