利用天生的免疫系统:一种针对CD47和CD24的新型双特异性抗体,用于选择性瘤清除
Lidi Nan1, Liandi Chen2, Weifeng Huang3
1School of Life Science and Technology, China Pharmaceutical University, Nanjing, China.
Journal for immunotherapy of cancer
|December 11, 2025
概括
一种针对CD47和CD24的新型双特异性抗体显示出癌症免疫治疗的前景. 这种新药物通过阻断"不要吃我"信号来增强抗瘤活性,同时与现有的CD47疗法相比提高了安全性.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 生物技术是生物技术.
背景情况:
- 与瘤相关的巨细胞 (TAMs) 对于抗瘤免疫至关重要,但通常被瘤免疫抑制.
研究的目的:
- 开发一种针对CD47和CD24的新型双特异性抗体,以克服目前基于CD47的治疗方法的局限性.
- 为了设计一种具有改进瘤向,Fc效应器功能和安全概况的抗体.
主要方法:
- 酵母显示和人类单克隆抗体生成针对针对CD47和CD24的vHHs.
- 在小鼠模型中进行了体外表征和体内疗效和安全性评估.
- 探索潜在的机制和瘤微环境的变化.
主要成果:
- 鉴定了针对CD47的强有力的联体阻断性vHHs和针对CD24的人类抗体.
- 开发一种双特异性抗体 (BiAb-103C),可以抑制CD47-SIRPα相互作用,并调解Fc-effector功能.
- 在临床前模型中证明了抗瘤活性和有利的安全概况.
结论:
- 反CD47/CD24双特异性抗体为癌症免疫治疗提供了一个有前途的治疗策略.
- 这种方法解决了与CD47向剂相关的疗效和安全问题.
- 对于那些对现有的免疫疗法没有反应的患者来说,这是潜在的治疗选择.
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