通过激活P2X7R激活β-基黄糖酸诱导的牛体内膜上皮细胞热
Jiajia Mu1,2,3, Qiannan Sun4,5, Nanyan Lin1,2,3
1College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, P. R. China.
Journal of agricultural and food chemistry
|July 31, 2025
概括
乳牛的症会通过细胞死亡过程 - - 热致死 (pyroptosis) 引起子宫炎症. P2X7受体 (P2X7R) 在这种炎症途径中发挥着关键作用,这表明它是潜在的治疗标.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
背景情况:
- 症是乳牛的一种代谢障碍,经常与子宫内膜炎有关.
- 将症与子宫炎症联系在一起的精确分子机制仍然不完全理解.
研究的目的:
- 调查P2X7受体 (P2X7R) 在乳牛中症诱导的子宫内膜炎中的作用.
- 阐明涉及症相关子宫炎症的分子途径.
主要方法:
- 对于关键的炎症标志物,对性和健康奶牛的子宫组织进行分析.
- 在体外研究中,牛子宫内膜上皮细胞暴露于β-基黄油酸 (BHBA).
- 药理上抑制P2X7R和相关的炎症途径组件.
- 在P2rx7淘汰赛小鼠中的体内症模型.
主要成果:
- 性奶牛在子宫组织中表现出高水平的NLRP3,caspase-1,GSDMD,GSDME和P2X7R.
- 暴露于BHBA诱导了子宫内膜细胞的热,增加了相关的基因和蛋白质表达.
- 随着BHBA暴露,P2X7R水平和细胞外ATP增加.
- 抑制NLRP3,caspase-1,caspase-3和P2X7R减弱的BHBA诱导的烧灭细胞.
- 抑制P2X7R降低了NLRP3,卡斯帕酶-1和卡斯帕酶-3的激活.
- 在P2rx7淘汰赛的小鼠中,BHBA水平降低,在症模型中出现较少的亡.
结论:
- P2X7R在介导BHBA诱导的牛子宫中的铁致死过程中至关重要.
- 通过NLRP3和caspase-3信号通路,P2X7R调节热.
- P2X7R代表了症诱导子宫内膜炎的潜在治疗标.
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