发酵增强了蜜蜂花粉对Caco-2单层上皮质屏障功能障碍的改善作用,基于NF-κB介导的MLCK-MLC信号通路
Huifang Zhang1, Min Liu1, Fanfen Song2
1College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Wuhan Engineering Research Center of Bee Products on Quality and Safety Control, Wuhan 430070, China.
Food research international (Ottawa, Ont.)
|February 3, 2024
概括
发酵增强了蜜蜂花粉的作用.
科学领域:
- 胃肠道学和免疫学
- 微生物学和生物技术 微生物学和生物技术
背景情况:
- 肠道屏障的完整性对于营养吸收和抗病能力至关重要.
- 细胞因子诱导的功能障碍 (干扰因子-马/瘤亡因子-α) 损害了屏障功能.
- 蜜蜂花粉因其改善肠道屏障缺陷的潜力而受到探索.
研究的目的:
- 研究发酵对蜜蜂花粉对抗细胞因子诱导的肠壁功能障碍的疗效的影响.
- 评估发酵蜜蜂花粉 (FBP) 对炎症标记物和紧结蛋白的影响.
- 阐明FBP对肠壁的保护作用背后的分子机制.
主要方法:
- 在体外使用干扰素- (IFN-γ) 和瘤坏死因子-α (TNF-α) 诱导肠壁功能障碍.
- 评估跨表皮电阻 (TEER) 和细胞透性.
- 测量炎症性细胞因子分泌 (IL-6,IL-8,IL-1β) 和循环氧化酶-2 (COX-2) 蛋白质的表达.
- 对紧结蛋白表达的分析 (区域性闭塞-1,闭塞蛋白,闭塞蛋白-1).
- 核因子kappa-B (NF-κB) 信号通路组件的研究,包括髓轻链激酶 (MLCK) 和髓轻链激酶 (MLC).
主要成果:
- 发酵显著提高了蜜蜂花粉恢复肠道屏障完整性的能力,由增加的TEER和降低的透性证明.
- 发酵蜜蜂花粉 (FBP) 显著降低了促炎性细胞因子 (IL-6,IL-8,IL-1β) 和COX-2表达的分泌.
- FBP治疗导致关键紧结蛋白 (ZO-1,ocludin,claudin-1) 的表达得到改善.
- 与未发酵蜜蜂花粉相比,FBP对NF-κB介导的MLCK/MLC信号通路具有更强的抑制作用.
结论:
- 发酵增强了蜜蜂花粉对肠道屏障的保护作用.
- 发酵蜜蜂花粉 (FBP) 通过减少炎症和增强密集结蛋白表达,有效地减轻细胞因子诱导的肠壁功能障碍.
- 作为一种功能性食品成分,FBP在维持和改善肠道屏障健康方面具有显著的潜力.
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