使用单克隆抗体向Trpv6通道诱导前列腺癌细胞亡和瘤回归
Aurélien Haustrate1,2, Clément Cordier1, George Shapovalov1
1Department of Biology, Laboratory of Cell Physiology, INSERM U1003, Laboratory of Excellence Ion Channels Science and Therapeutics, Faculty of Science and Technologies, University of Lille, 59650, Villeneuve d'Ascq, France.
Cell death & disease
|June 15, 2024
概括
研究人员开发了一种新型抗体,mAb82,向TRPV6通道治疗前列腺癌 (PCa). 这种抗体有效地减少了瘤生长,并在临床前模型中改善了生存率,为PCa提供了有前途的新治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
背景情况:
- 在前列腺癌 (PCa) 中,TRPV6通道过度表达,并与癌症进展有关.
- 现有的治疗方法缺乏有效的工具,以在体内向TRPV6以减少瘤负担.
- TRPV6在PCa细胞存活和抵抗细胞亡方面发挥着至关重要的作用.
研究的目的:
- 为了生成和表征一种新的小鼠单克隆抗体 (mAb82),针对TRPV6通道的细胞外表图.
- 为了评估mAb82在抑制TRPV6电流和减少PCa细胞活性的有效性.
- 通过使用临床前PCa模型在体内评估mAb82的抗瘤作用和安全性.
主要方法:
- 产生小鼠单克隆抗体mAb82对抗细胞外TRPV6表位.
- 在体外评估mAb82抑制TRPV6电流和诱导PCa细胞的亡的能力.
- 使用PCa异种移植的小鼠进行体内研究,以评估mAb82治疗后的瘤生长抑制和生存率.
主要成果:
- mAb82显著抑制了TRPV6电流 (90%) 并减少了储存运行的进入 (56%).
- 在体外,mAb82通过诱导亡,包括calpain和caspase激活,将PCa存活率降低了71%.
- 在体内,mAb82治疗导致显著的瘤生长减少 (31-90%) 和显著改善的生存率,没有观察到的毒性.
结论:
- mAb82 是TRPV6通道活性的一个强有力的抑制剂.
- 这种抗TRPV6抗体在PCa的体外和体内表现出显著的抗瘤疗效.
- mAb82代表了一种有前途的新型治疗剂,用于治疗TRPV6表达前列腺癌.
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