咖啡酸通过激活断奶小猪和H2O2诱导的IPEC-J2细胞中的Nrf2信号通路来改善肠壁功能完整性
Xueya Zhu1, Tianlei Qiao1, Zhiqing Huang1
1Animal Nutrition Institute, Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, China.
The Journal of nutritional biochemistry
|May 8, 2025
概括
咖啡酸 (CA) 通过改善肠道屏障功能,增强小猪生长和肠道健康. 它通过激活Nrf2信号通路来保护肠道细胞免受氧化应激.
科学领域:
- * 营养科学 营养科学
- * 胃肠病学 胃肠病学
- * 细胞生物学 * 细胞生物学
背景情况:
- *咖啡酸 (CA) 是一种植物聚,具有抗氧化特性,并影响肠道屏障功能.
- *CA提高肠道屏障完整性和减轻氧化应激的确切机制尚未完全理解.
研究的目的:
- * 为了研究CA在氧化应激下对断奶小猪和猪肠上皮细胞 (IPEC-J2) 的肠道屏障完整性的影响.
- *阐明潜在的分子机制,特别是Nrf2信号通路的作用.
主要方法:
- * 在体内对断奶小猪进行实验,评估生长性能,抗氧化能力和状粘膜完整性.
- *使用H2O2诱导的IPEC-J2细胞进行体外研究,以评估氧化应激标志物,Nrf2通路激活,紧结蛋白表达和细胞功能.
- *使用Nrf2特异性抑制剂ML385来确认途径的参与.
主要成果:
- *CA补充改善了小猪生长,抗氧化能力,膜粘膜完整性,并减少了腹的发生率.
- *在体外,CA减轻了IPEC-J2细胞中H2O2诱导的氧化应激,增强了Nrf2通路的激活.
- *CA恢复了紧结蛋白表达,细胞迁移和上皮质屏障功能,同时减少了LDH释放;这些效应被ML385.5废除了.
结论:
- *咖啡酸有效地改善了断奶小猪的肠道屏障完整性.
- *CA通过激活Nrf2信号通路来保护肠道上皮细胞免受氧化损伤.
- *CA具有减轻肠道氧化应激和屏障功能障碍的潜力.
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