SAIL66是一种下一代的CLDN6向T细胞激活剂,通过对CD3/CD137的双重结合,显示出强大的抗瘤功效
Takayuki Kamikawa1, Naoki Kimura2, Shinya Ishii1
1Chugai Pharmaceutical Co Ltd, Yokohama, Kanagawa, Japan.
Journal for immunotherapy of cancer
|October 14, 2024
概括
一种新型抗体SAIL66针对克劳丁-6 (CLDN6) 并通过CD3和CD137共同刺激刺激T细胞. 这种方法增强了抗瘤活性,并减少了卵巢癌模型中的T细胞耗尽.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 分子生物学分子生物学
背景情况:
- 卵巢癌带来了重大的治疗挑战.
- 克劳丁-6 (CLDN6) 在卵巢癌中过度表达,但在健康组织中没有.
- 目前的T细胞参与剂 (TCEs) 需要改善固体瘤的有效性和安全性.
研究的目的:
- 开发一种新的三特异性抗体,SAIL66,针对CLDN6,CD3和CD137.
- 评估SAIL66与传统TCE相比的临床前疗效和安全性.
主要方法:
- SAIL66是使用专有双Ig TCE技术设计的,用于CLDN6,CD3和CD137结合.
- 在体外和体内研究中进行的临床前表征,包括与传统的CLDN6/CD3 TCE进行比较.
主要成果:
- SAIL66对CLDN6具有很高的特异性,最大限度地降低了目标外毒性.
- 在实验室中,SAIL66有效地激活了T细胞 (CD4+和CD8+) 和CD137信号.
- 在体内研究表明,由于CD137联合刺激,内T细胞透增加,T细胞耗尽减少,抗瘤功效优越.
结论:
- SAIL66显示出作为CLDN6表达性卵巢和其他固体瘤的强效治疗剂的潜力.
- 结合了CLDN6向与CD3和CD137参与的组合,可以增强抗瘤活性.
- 目前正在进行临床试验,以评估SAIL66的安全性和有效性.
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