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将AS1411重新用于构建ANM-PROTACs.

Xuekun Fu1, Jin Li2, Xinxin Chen2

  • 1Department of Systems Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen 518055, China; Institute of Integrated Bioinfomedicine and Translational Science (IBTS), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR 999077, China.

Cell chemical biology
|April 24, 2024
PubMed
概括
此摘要是机器生成的。

这项研究重新利用了AS1411的合体,创造了一种针对癌细胞的新型蛋白解酶向化马体 (PROTAC). 新的ANM-PROTAC有效降解具有内置瘤选择性和细胞透性的致癌蛋白质.

关键词:
在AS1411中,使用的是AS1411.MDM2DM2 在线播放这就是PROTAC.在TPD中,TPD是TPD.癌症 癌症 癌症 癌症 癌症转录因子的转录因子

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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
  • 在瘤学瘤学.

背景情况:

  • 化向化体 (PROTACs) 提供向蛋白质降解,但面临诸如细胞透性差和E3结合酶结合体强度等局限性.
  • AS1411是一种抗瘤胺酶,它与核素 (NCL) 结合,核素是一种参与膜核穿的蛋白质.

研究的目的:

  • 为了重新利用AS1411的aptamer作为一个E3结合酶连接体,用于PROTAC的发展.
  • 构建和评估基于AS1411-NCL-MDM2的PROTAC (ANM-PROTAC),用于针对性降解致癌蛋白质.

主要方法:

  • AS1411被重新用于定NCL-MDM2复合体,作为E3酶连接体.
  • 通过将AS1411与致癌蛋白STAT3,c-Myc,p53-R175H和AR-V7.7的配体结合,合成了ANM-PROTACs.
  • 评估了ANM-PROTAC在瘤细胞透,蛋白质降解和体内抗瘤活性方面的有效性.

主要成果:

  • 该ANM-PROTAC证明了有效的瘤细胞透和招募MDM2.
  • 通过ANM-PROTAC实现了针对性瘤原蛋白 (STAT3,c-Myc,p53-R175H,AR-V7) 的降解.
  • ANM-PROTAC表现出瘤选择性分布,强烈的抗瘤活性,没有全身毒性.

结论:

  • 开发的ANM-PROTAC利用AS1411进行E3酶结合,克服了PROTAC的局限性.
  • 这种新型的PROTAC具有固有的瘤向和细胞透能力.
  • ANM-PROTAC代表了一种有前途的治疗策略,用于对抗由"无药"瘤基因驱动的癌症.