碳水化合物反应性元素结合蛋白相关的代谢变化在化学诱导的肝癌发生的小鼠模型
Maren Engeler1, Majedul Karim1, Marcel Gischke1
1Institute for Pathology, University Medicine Greifswald, 17475 Greifswald, Germany.
International journal of molecular sciences
|July 29, 2025
概括
碳水化合物敏感元素结合蛋白 (ChREBP) 在肝癌中起着双重作用. 它的特定异型,ChREBPα,促进瘤生长,而ChREBPβ可能会抑制它.
科学领域:
- 代谢调节 代谢调节 代谢调节
- 肝癌发生研究研究肝癌发生.
- 转录因子函数的功能.
背景情况:
- 碳水化合物敏感元素结合蛋白 (ChREBP) 是碳水化合物和脂质代谢的关键调节者.
- 了解ChREBP在肝癌中的作用对于开发向疗法至关重要.
研究的目的:
- 研究ChREBP及其异型 (ChREBPα和ChREBPβ) 在肝癌发生过程中的细胞类型特异性功能.
- 阐明ChREBPα和ChREBPβ在肝脏瘤开始和进展中的不同作用.
主要方法:
- 使用一种甲胺 (DEN) 诱导的小鼠模型来进行肝癌发生.
- 雇佣了全身性ChREBP-Knockout (KO) 和肝细胞特异性ChREBP-KO (L-KO) 的小鼠.
- 分析瘤使用组织学,形态学,增殖试验,免疫组织化学,西斑和qPCR.
主要成果:
- 肝细胞特异性ChREBPα损失 (L-KO) 显著降低了瘤进展和肝细胞增殖.
- 系统性ChREBP淘汰赛 (KO) 降低了瘤的发病率,但对瘤的进展有很小的影响.
- 与野生型 (WT) 瘤相比,KO瘤显示了下调的AKT/mTOR信号,糖解和脂质生成.
结论:
- 在肝癌中,ChREBPα具有致癌作用,特别是当它在肝细胞中特别丢失时.
- 根据系统性淘汰赛结果,ChREBPβ可能具有瘤抑制功能.
- 向ChREBPα可能是肝癌发生的潜在治疗策略.
更多相关视频
相关概念视频
Mutagenicity and Carcinogenicity
1.4K
Mutagenicity and carcinogenicity refer to the ability of drugs to cause genetic defects and induce cancer, respectively. The International Agency for Research on Cancer (IARC) classifies agents into four groups based on their carcinogenic potential. Group 1 agents are known human carcinogens; group 2A agents are probably carcinogenic to humans; group 3 agents lack data to support their role in carcinogenesis; and group 4 includes agents for which data support that they are not likely to be...
1.4K
Cell Specific Gene Expression
13.9K
Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
13.9K

![Chemical-Induced Skin Carcinogenesis Model Using Dimethylbenz[a]Anthracene and 12-O-Tetradecanoyl Phorbol-13-Acetate DMBA-TPA](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F60445.jpg&w=3840&q=50)
