α-糖单酸盐通过PKC/MAPK/ATF-2信号通路促进紧结蛋白的表达
Siyu Dai1, Cunjie Li1, Dagang Li2
1Guangdong Province Engineering Research Center for Antibody Drug and Immunoassay, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong, China.
Frontiers in nutrition
|August 18, 2025
概括
阿尔法单糖化物 (α-GML) 通过通过PKC/MAPK/ATF-2通路增加紧结蛋白表达来增强肠道屏障功能. 这项研究阐明了潜在的肠道健康策略的分子机制.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 胃肠病学 胃肠病学
背景情况:
- 肠上皮紧接口 (TJs) 对于屏障完整性至关重要.
- 阿尔法单糖化物 (α-GML) 显示出增强肠道屏障功能的潜力.
- 了解α-GML作用的分子机制对于治疗开发至关重要.
研究的目的:
- 为了研究α-GML对肠上皮质TJ蛋白表达的影响.
- 阐明参与α-GML介导的TJ调节的分子信号通路.
- 探索维护肠道健康的新策略.
主要方法:
- 使用数据独立获取 (DIA) 进行目标识别.
- 采用蛋白激酶C (PKC) 和基激活蛋白激酶 (MAPK) 抑制剂.
- 通过基因沉默和过度表达,评估ATF-2在TJ蛋白调节中的作用.
主要成果:
- α-GML可以通过PKC/MAPK/ATF-2信号通路对TJ蛋白进行上调.
- 抑制MAPK和降低ATF-2降低了TJ蛋白的表达.
- ATF-2直接影响ZO-1促进体活性,证实其在TJ蛋白表达中的作用.
结论:
- α-GML通过调节TJ蛋白来增强肠道上皮质屏障功能.
- PKC/MAPK/ATF-2通路是α-GML影响的关键机制.
- 这些发现为开发基于α-GML的肠道健康干预措施提供了基础.
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