肠上皮质分化和屏障功能通过AMPK通路激活通过Cynara cardunculus L.叶片提取物在体外促进
Claudia Muscarà1, Antonio Speciale1, Maria Sofia Molonia1
1Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy.
Natural product research
|July 26, 2024
概括
来自Cynara cardunculus L.叶的多 (CCLE) 通过改善细胞分化和紧密结合组装来增强肠道屏障功能. 这表明CCLE是肠道健康的有希望的自然方法.
科学领域:
- 胃肠病学 胃肠病学
- 细胞生物学 细胞生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 肠上皮质屏障功能障碍,或漏肠,允许有害物质透,触发免疫反应.
- 聚因其增强肠道屏障完整性和防止漏肠的潜力而得到认可.
- Cynara cardunculus L. 叶子是生物活性多的丰富来源.
研究的目的:
- 研究Cynara cardunculus L.叶 (CCLE) 富含多的提取物对肠道屏障功能的保护作用背后的体外分子机制.
- 评估CCLE对人类肠道上皮细胞系Caco-2的完整性的影响.
- 阐明参与CCLE对肠道屏障的有益影响的信号通路.
主要方法:
- 利用Caco-2人类上皮细胞来建模肠道屏障.
- 通过测量跨表皮电阻 (TEER) 和对光素的细胞透性来评估肠道屏障功能.
- 使用Ca2+开关试验评估紧结 (TJ) 组件,并分析了TJ蛋白表达.
- 通过性酸酶活性测量了上皮细胞分化.
- 研究了AMP激活蛋白激酶 (AMPK) 途径的作用.
主要成果:
- CCLE治疗显著增加了TEER,并降低了分化的Caco-2细胞中的细胞透性.
- CCLE促进了紧密结合组件的更快恢复,并刺激了上皮细胞分化.
- CCLE上调性酸酶活性和紧结蛋白.
- 观察到的CCLE的保护作用与AMPK通路的激活有关.
结论:
- 来自Cynara cardunculus L.叶 (CCLE) 的富含多的提取物有效地增强了肠道屏障功能和完整性.
- CCLE促进了上皮细胞分化,并改善了紧密结合组合,可能是通过AMPK通路激活.
- 农业副产品Cynara cardunculus L. 叶片是多的宝贵来源,可以支持肠道健康.
相关概念视频
Renewal of Intestinal Stem Cells
2.5K
The intestinal epithelial lining rapidly renews every 4 to 5 days. The renewal is facilitated by intestinal stem cells (ISCs) located at the base of the crypt– a gland located at the bottom of each villus. ISCs divide asymmetrically to form new stem cells and progenitor daughter cells. The daughter cells are called transit-amplifying (TA) cells which move upwards along the crypt and either differentiate into absorptive cells– the enterocytes or secretory cells– including the...
2.5K
Role of Ephrin-Eph Signalling in Intestinal Stem Cell Renewal
2.2K
Erythropoietin-producing hepatocellular carcinoma receptor (Eph) and its ligand, Eph receptor-interacting protein (Ephrin) were first discovered in the human carcinoma cell line, hence the name. Ephrin-Eph interaction guides cells to reach their appropriate location in adult tissues. They also play an essential role in the immune system by helping in immune cell migration, adhesion, and activation. Based on their structure and function, Eph is divided into two classes — EphA and EphB.
2.2K


