使用抗NKG2A预处理的自然杀手细胞进行细胞疗法,用于肝细胞癌患者
Shirin Tavakoli1, Maryam Samareh-Salavati1, Shahrokh Abdolahi2
1Department of Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Advanced pharmaceutical bulletin
|April 7, 2025
概括
这项研究表明,用单克隆抗体抑制NKG2A是安全的,并且可以在肝癌患者中增强采用自然杀手 (NK) 细胞免疫疗法.
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:
- 自然杀手 (NK) 细胞对于免疫监测至关重要,通过激活和抑制受体进行调节.
- NKG2A是NK细胞上的抑制受体,可以限制它们的抗瘤活性.
研究的目的:
- 用单克隆抗体 (mAbs) 来评估NKG2A的抑制,以增强采用NK细胞免疫疗法.
- 评估这种方法在肝细胞癌 (HCC) 患者中的安全性和可行性.
主要方法:
- 一项试点研究涉及输注扩大后的捐赠者平分异性NK细胞,先用抗NKG2A抗体进行预处理.
- 患者接受了调节方案 (fludarabine/cyclophosphamide),随后进行NK细胞输液.
- 在第0天,第5天和第10天,NK细胞被IL-2激活并注入7×10^8细胞的剂量.
主要成果:
- 所有患者都在随访期间 (中位数为4个月) 幸存下来.
- 两名患者经历了疾病进展,瘤大小增加.
- 一个月后,在所有患者中观察到α-fetoprotein (AFP) 水平的持续下降.
结论:
- 在条件化后输入高剂量的活体扩展NK细胞是安全的和可行的.
- 观察到过渡性的副作用.
- 向NKG2A显示了改善采用NK细胞免疫疗法的潜力,尽管需要进一步研究疗效.
相关概念视频
01:27Tumor Immunotherapy
411
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.
411
02:57Targeted Cancer Therapies
7.4K
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...
7.4K