相关实验视频
Updated: Sep 20, 2025

07:00
Using Caco-2 Cells to Study Lipid Transport by the Intestine
Published on: August 20, 2015
19.0K
来自番茄的细胞外囊泡可以调节分化的Caco-2细胞中的CYP1A1mRNA含量
Ziyu Huang1, Sabine Gerbal-Chaloin2, Martine Daujat-Chavanieu2
1Department of Food Science, Aarhus University, Denmark.
Toxicology letters
|May 29, 2025
概括
来自植物的细胞外囊泡可以在人类肠道细胞中调节CYP1A1mRNA. 这一发现表明植物囊泡可能会影响药物代谢和第一通代谢途径中的解毒过程.
科学领域:
- 生物化学 生化学
- 药理学 药理学是指药理学的学科.
- 细胞生物学 细胞生物学
背景情况:
- 细胞染色体P450酶 (CYPs) 对于代谢化合物至关重要.
- 小肠是第一通代谢的关键部位.
- 植物化合物可以调节CYP表达,但植物囊泡的作用尚不清楚.
研究的目的:
- 调查番茄衍生的细胞外囊泡是否影响肠道细胞中的CYP表达.
- 为了确定这种效应在分化的Caco-2细胞中的特异性.
主要方法:
- 一个转录基因数据集的分析.
- 用番茄细胞外囊泡对分化的人类Caco-2细胞的治疗.
- 对CYP1A1mRNA水平的定量分析.
- 对转录因子表达的评估 (AhR,Sp1).
主要成果:
- 番茄细胞外囊泡在分化的Caco-2细胞中特别调节了CYP1A1mRNA.
- 在非癌细胞模型或未分化的Caco-2细胞中没有观察到这种效应.
- CYP1A1 mRNA的增加独立于AhR和Sp1转录因子.
结论:
- 植物衍生的细胞外囊泡可以调节细胞染色体P450酶的表达.
- 这代表了一种新的机制,通过这种机制,植物化合物可能会影响第一通代谢.
- 细胞外囊泡为了解异生物代谢中的植物肠互动提供了一条新的途径.
相关概念视频
COP Coated Vesicles
9.2K
Membrane-enclosed structures called vesicles transport proteins and lipids across the cell. The vesicles derive their cargo from the plasma membrane, Golgi, ER, or endosome. Coated vesicles are spherical, protein-coated carriers with a 50–100 nm diameter that mediate bidirectional transport between the ER and the Golgi. The distribution of proteins between the ER and Golgi complex is dynamic and is maintained by different coated vesicles. Their formation is driven by the assembly of...
9.2K
Overview of Secretory Vesicles
8.7K
Secretory vesicles, also known as dense core vesicles (DCVs), are membrane-bound vesicles that transport secretory proteins, such as hormones or neurotransmitters. Regulated secretory vesicles transport proteins from the trans-Golgi network to the exterior of the cell. Proteins present in regulated secretory vesicles are required to be rapidly exocytosed in large amounts upon a specific stimulus.
Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...
Various proteins regulate the aggregation of molecules inside the secretory vesicles. Chromogranins...
8.7K
Vesicular Tubular Clusters
2.6K
After budding out from the ER membrane, some COPII vesicles lose their coat and fuse with one another to form larger vesicles and interconnected tubules called vesicular tubular clusters or VTCs. These clusters constitute a compartment at the ER-Golgi interface known as ERGIC (Endoplasmic Reticulum Golgi Intermediate Compartment). The ERGIC is a mobile membrane-bound cargo transport system that sorts proteins secreted from ER and delivers them to the Golgi.
With the help of motor proteins such...
With the help of motor proteins such...
2.6K
Receptor Downregulation in MVBs
2.2K
Multivesicular bodies (MVBs) are mature endosomes that sort ubiquitinated proteins and then fuse with lysosomes to degrade the sorted proteins. Epidermal growth factor (EGF) and its receptor (EGFR) form a complex that can be internalized through endocytosis, sorted into an MVB, and later degraded.
The EGFR can initiate signaling pathways that lead to cell proliferation, migration, and differentiation. Overexpression of EGFR stimulates cells to proliferate. Excessive EGFR...
The EGFR can initiate signaling pathways that lead to cell proliferation, migration, and differentiation. Overexpression of EGFR stimulates cells to proliferate. Excessive EGFR...
2.2K

