相关实验视频
Updated: Jan 6, 2026

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Development of Compendium for Esophageal Squamous Cell Carcinoma
Published on: April 12, 2024
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在食道状细胞癌的进展中,USP4-deubiquitinated PGAM5调节了线粒体动力学
Yucheng Xiang1, Lingling Xu1, Zhongxiao Lin1
1Department of Thoracic Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou City, Zhejiang Province, China.
Molecular carcinogenesis
|November 2, 2025
概括
乌比基特异性蛋白酶4 (USP4) 通过稳定糖酸突变酶5 (PGAM5) 促进食道状细胞癌 (ESCC) 的生长. 这导致过度的线粒并支持ESCC中的瘤进展.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 食道状细胞癌 (ESCC) 是一个重要的全球健康问题.
- 线粒体动力学在癌症进展中起着至关重要的作用.
- 在ESCC中,泛胺特异蛋白酶4 (USP4) 的作用在很大程度上仍未被探索.
研究的目的:
- 调查USP4对ESCC中线粒体动态的影响.
- 阐明涉及糖酸突变酶5 (PGAM5) 的潜在分子机制.
主要方法:
- 在ESCC组织中分析USP4和PGAM5表达.
- 在ESCC细胞中的体外功能的增加和丧失研究.
- 评估细胞增殖,入侵,迁移,细胞亡和线粒体参数 (MMP,mtROS).
- 在小鼠模型中进行体内瘤形成测试.
主要成果:
- 在ESCC组织中,USP4和PGAM5表达升高.
- USP4使PGAM5脱和稳定,提高其蛋白质水平.
- PGAM5倒置逆转了USP4的亲恶性影响,包括增加线粒体和改变线粒体功能.
- 在体内,USP4的过度表达促进了ESCC细胞的增殖,迁移和瘤生长,而PGAM5的降低则抵消了这些影响.
结论:
- 通过稳定PGAM5.5,USP4促进ESCC中的细胞生长和过度线粒.
- USP4-PGAM5轴代表了ESCC治疗的潜在治疗目标.
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