卡尔莫杜林通过TLR4/IKK/NF-κB通路促进临床症奶牛的脂解和炎症反应
Jinshui Chang1, Zhijie Wang2, Yu Hao1
1College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China.
Animals : an open access journal from MDPI
|June 19, 2024
概括
卡尔莫杜林 (CaM) 通过激活TLR4/IKK/NF-κB通路,促进临床症的奶牛的脂解和炎症. 抑制CaM可以缓解代谢失调,减少脂肪组织中的脂解和炎症.
科学领域:
- 牲畜中的代谢疾病.
- 脂肪组织生物学 脂肪组织生物学
- 炎症的分子机制.
背景情况:
- 乳牛的临床症与脂肪组织脂解和炎症有关.
- 之前的研究表明,性奶牛的脂肪组织中卡尔莫杜林 (CaM) 的显著上调.
- 一个假设提出了CaM在调节解和症炎症中的作用.
研究的目的:
- 调查卡尔莫杜林 (CaM) 在调节临床症奶牛的脂解和炎症反应中的作用.
- 阐明涉及CaM,脂解和牛脂肪组织炎症的分子机制.
主要方法:
- 兽医评估和血清分析 (BHB,NEFA,LFI,IL-6,IL-1β,TNF-α) 在健康和症霍尔斯坦牛.
- 在脂肪组织中分析CaM,TLR4,IKK,NF-κB,ATGL,p-HSL和PLIN1的丰度.
- 在体外研究中,使用用脂聚糖 (LPS) 治疗的初级牛脂肪细胞,CaM过度表达和CaM沉默.
主要成果:
- 性奶牛的BHB,NEFA,LFI,炎症性细胞因子 (IL-6,IL-1β,TNF-α),CaM,TLR4,IKK,p-NF-κB,ATGL,p-HSL的水平升高,PLIN1.1的水平降低.
- 在体外,LPS诱导炎症和脂解标志物,这些标志物通过CaM操纵来调节.
- 过度表达CaM加剧了LPS诱导的脂解和炎症,而CaM沉默减弱了这些反应.
结论:
- 卡尔莫杜林 (CaM) 通过HSL和PLIN1促进脂肪细胞脂解,并通过TLR4/IKK/NF-κB通路刺激炎症.
- 在临床症期间,CaM,脂解和牛脂肪组织炎症之间存在正反循环.
- 向CaM可能是一种治疗策略,以减轻乳牛患有症的代谢失调.
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