相关实验视频
Updated: Feb 4, 2026

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Purification of Ubiquitinated p53 Proteins from Mammalian Cells
Published on: March 21, 2022
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FOXO4-DRI通过P53信号通路调节内皮细胞衰老
Zhicheng Hu1,2, Fan Li1,2, Chunyi Hu1,3
1School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China.
Frontiers in bioengineering and biotechnology
|February 2, 2026
概括
酸FOXO4-DRI通过破坏FOXO4-P53相互作用来选择性地消除衰老的内皮细胞,从而改善血管功能并延缓血管衰老. 这种有针对性的方法为治疗与年龄有关的血管疾病提供了一种新的策略.
科学领域:
- 老年学是一门学科.
- 血管生物学 血管生物学
- 分子生物学分子生物学
背景情况:
- 内皮细胞功能障碍是血管衰老和相关疾病的主要驱动因素.
- 目前清除衰老的内皮细胞和恢复血管健康的策略是有限的.
- FOXO4-DRI是一种新型,通过破坏FOXO4-P53相互作用来向衰老细胞.
研究的目的:
- 阐明FOXO4-DRI在衰老的内皮细胞中诱导亡的机制.
- 评估FOXO4-DRI在改善血管功能和延缓血管衰老方面的疗效.
- 研究p53/BCL-2/Caspase-3信号通路在FOXO4-DRI介导的亡中的作用.
主要方法:
- 在接受FOXO4-DRI治疗的自然衰老和前列腺小鼠中评估大动脉血管功能和衰老.
- 使用氧气-葡萄糖剥夺 (OGD) 诱导内皮细胞衰老,然后用FOXO4-DRI进行治疗.
- 免疫光学和西部斑点分析FOXO4-P53信号通路内的蛋白质表达和相互作用.
- 同免疫沉 (CO-IP) 证实FOXO4-P53结合的破坏.
主要成果:
- FOXO4-DRI的使用改善了大动脉功能,并抑制了老年和前列腺小鼠模型中的衰老.
- 该减轻了OGD诱导的内皮细胞衰老,增强了内皮细胞的功能.
- FOXO4-DRI抑制了FOXO4-P53的结合,促进了化P53的核排斥,BAX激活,并分裂了caspase-3,导致衰老细胞亡.
结论:
- 通过激活p53/BCL-2/Caspase-3通路,FOXO4-DRI有效地诱导衰老内皮细胞的亡.
- 该可以促进酸化P53的核出口,抑制血管衰老.
- 福克索4-DRI为向内皮细胞衰老和治疗血管衰老提供了一个有希望的治疗策略.
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