针对蛋白质降解的同介质溶酶向抗体的输送
Dingdong Yuan1, Yishu Bao1, Zhiyi Xu1
1Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|February 25, 2026
概括
研究人员开发了溶酶组分类合酶 (LSP-Coa),其向与癌症相关的蛋白质 (CAPs) 进行降解. 这种由Coacervate介导的色素向蛋白降解 (CoaLPD) 策略对新的癌症治疗有希望.
科学领域:
- 生物化学 生物化学
- 细胞生物学 细胞生物学
- 纳米技术 纳米技术
背景情况:
- 基于抗体的癌症疗法向癌症相关蛋白 (CAPs) 在溶酶体内降解.
- 有效地将抗体-CAP复合物输入细胞,特别是溶解体,仍然是一个挑战.
- 现有的相分离协体可以进入细胞,但缺乏溶酶体向.
研究的目的:
- 设计能够针对蛋白质降解的溶酶体的新型协体.
- 通过降低CAPs来开发癌症治疗的新治疗策略.
- 为了提高现有的蛋白质降解技术的有效性,如PROTACs.
主要方法:
- 调整一个四,通过液-液相分离 (LLPS) 创建相分离的溶酶组分类协同体 (LSP-Coa).
- 证明了LSP-Coa.的自发细胞吸收和溶酶体同位化.
- 使用LSP-Coa封装抗体-CAP复合体用于溶酶体的递送和降解 (由Coacervate介导的溶酶体向蛋白降解 - CoaLPD).
主要成果:
- LSP-Coa有效地封装蛋白质,并促进抗体-CAP复合物的转移到 lysosomes.
- 在癌细胞和体内瘤模型中,CoaLPD成功降解了膜结合的CAPs,包括HER2和EGFR.
- 该LSP-Coa系统增强了溶酶体的吸收,并提高了PROTAC介导的降解的有效性.
结论:
- 色素向性协同体 (LSP-Coa) 已成功设计和合成.
- CoaLPD战略提供了一个针对CAPs有针对性的降解的新机制,显示出作为抗癌治疗的潜力.
- LSP-Coa作为酶体特异性抗体输送的有效载体,推进向蛋白质降解疗法.
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