抗CD19/CD8双特异性T细胞参与剂,用于潜在的B细胞恶性瘤治疗
Nafiseh Maghsoodi1, Mohammadrasul Zareinejad2, Ali Golestan1
1Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran; Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Science, Shiraz, Iran.
Cellular immunology
|November 17, 2023
概括
研究人员开发了一种针对CD8+T细胞和CD19+细胞的新型双特异性抗体. 这种新的双特异性抗体 (αCD8/CD19) 通过直接接触细胞毒性T细胞,显示出增强癌症免疫疗法的潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 生物技术是生物技术.
- 在瘤学瘤学.
背景情况:
- 布莱纳托马布治疗可能会导致诸如细胞因子风暴之类的不良反应.
- 需要针对特定免疫细胞的新型免疫疗法.
研究的目的:
- 生产和评估一种新型双特异性抗体 (αCD8/CD19),旨在直接向CD8+T细胞.
- 为了评估αCD8/CD19双特异抗体的in-silico,in-vitro和功能特征.
主要方法:
- 对于蛋白质折叠,受体结合和结构稳定性的in-silico研究.
- 西方涂抹和间接表面染色用于蛋白质表征.
- 功能性检测对大酶B的产生,细胞毒性和扩散.
主要成果:
- 在CHO-K1细胞中,αCD8/CD19复合蛋白在1.94mg/l的剂量下成功地产生.
- 这种双特异性抗体被证明与CD8+和CD19+细胞系结合.
- 在IL-2和瘤细胞的存在下,诱导了显著的B粒酶生产,细胞毒性活性和扩散.
结论:
- 新型αCD8/CD19双特异抗体对细胞表现出强大的生物活性.
- 在第10天观察到最大的CD8+T细胞活性,效应因子与点的比率为10:1.
- 这种双特异性抗体显示出作为下一代免疫疗法剂的前景.
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