相关实验视频
Updated: Sep 12, 2025
14:57
Yeast As a Chassis for Developing Functional Assays to Study Human P53
Published on: August 4, 2019
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一个定量高通量屏幕识别了可以抑制p53异型Δ133p53α并抑制细胞衰老的化合物
Delphine Lissa1, Sebastien M Joruiz1, Patricia K Dranchak2
1Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States.
ACS pharmacology & translational science
|August 4, 2025
概括
研究人员开发了一种新的测定方法,以寻找增强D133p53α的化合物,这种蛋白与细胞衰老作斗争. 两种化合物,AZD1981和切拉斯特,被确定,可能为与衰老相关的疾病提供新的治疗方法.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- Δ133p53α是一种人类/灵长类动物特有的p53异型,可以抑制细胞衰老和相关的分泌表型 (SASP).
- 伴奏辅助选择性自 (CASA) 是通过降解调节 Δ133p53α 蛋白水平的关键机制.
- 细胞衰老与衰老和与年龄相关的疾病有关.
研究的目的:
- 开发和实施定量高通量选 (qHTS) 试验,以识别可上调 Δ133p53α 蛋白水平的化合物.
- 通过向Δ133p53α调节,发现针对衰老和衰老相关疾病的新型治疗剂.
主要方法:
- 开发了一种使用光标记 Δ133p53α 的基于细胞的新型 qHTS 试验.
- 超过1万种小分子化合物被选,以确定Δ133p53α的调节剂.
- 候选化合物被证实具有提高内源 Δ133p53α 调节和减少衰老标志物的能力.
主要成果:
- 通过qHTS测试,成功地分析了超过1万种化合物.
- 两种化合物,AZD1981和,被确定为人类星球细胞和纤维细胞中Δ133p53α蛋白水平的强烈诱导剂.
- 塞拉斯托尔的作用与CASA介导的调节一致,涉及热冲击蛋白70 (HSP70) 陪伴者.
- 对Δ133p53α的升调导致细胞衰老和SASP因子分泌的减少.
结论:
- 开发的qHTS试验有效地识别了调节Δ133p53α的化合物.
- AZD1981和赛拉斯特显示出治疗衰老和衰老相关疾病的治疗潜力.
- 针对 Δ133p53α 稳定提供了一个有前途的战略,用于开发新的抗衰老疗法.
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