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可编程蛋白质稳定与语言模型衍生的指南.

Lauren Hong1, Tianzheng Ye2, Tian Z Wang1

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此摘要是机器生成的。

研究人员设计了新的二维基体 (duAbs) 来稳定蛋白质,扩大了针对癌症等疾病的向蛋白质稳定 (TPS). 这种方法针对以前无法治疗的蛋白质,包括瘤抑制剂和融合基蛋白.

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科学领域:

  • 生物化学 生物化学
  • 分子生物学分子生物学
  • 药物发现 药物发现 药物发现

背景情况:

  • 通过ubiquitin-proteasomal通路调节失调的蛋白质降解与癌症,神经退行和糖尿病等疾病有关.
  • 目前的向蛋白稳定 (TPS) 和向蛋白降解 (TPD) 平台需要结构化的结合口袋,将其应用限制在"不可抗药"的目标上.
  • 需要新的治疗策略来解决蛋白质调节障碍在治疗选择有限的疾病.

研究的目的:

  • 通过开发一种新的稳定缺乏传统结合口袋的蛋白质平台,扩大向蛋白质稳定 (TPS) 的范围.
  • 通过将计算设计的与OTUB1二维基因酶催化域融合,设计二维基体 (duAbs).
  • 证明duAbs在稳定各种蛋白质标中的有效性,包括瘤抑制剂和融合基蛋白,以及它们在治疗应用中的潜力.

主要方法:

  • 使用蛋白质语言模型,针对特定蛋白质的的计算设计.
  • 设计的融合到OTUB1的催化域,以创建二双体 (duAbs).
  • 在人类细胞中验证duAb介导的蛋白质稳定,评估duebiquitinase (DUB) 的依赖性.
  • 工程师对 p53,WEE1 和 PAX3::FOXO1.1.等形状多样化的目标进行了对抗.
  • 在脂质纳米颗粒中封装p53-targetingduAb mRNA用于细胞内输送.

主要成果:

  • 工程化duAbs有效地稳定了外源和内源蛋白质,以DUB-依赖的方式.
  • DuAbs成功地被设计成针对形状多样化的蛋白质,包括瘤抑制剂 (p53,WEE1) 和无序融合基蛋白 (PAX3::FOXO1).
  • 在细胞模型中,mRNA封装的p53向的duAbs表现出有效的细胞内传递,p53稳定和亡激活.

结论:

  • 脱基体 (duAbs) 代表了针对性蛋白稳定 (TPS) 的新平台,克服了传统药物设计的局限性.
  • 这种方法扩大了可用药物的蛋白质组,为由蛋白质失调驱动的疾病提供了潜在的治疗策略.
  • 通过mRNA输送的duAbs在体外成功证明,需要进一步研究体内翻译和临床开发.