循环的细胞外胆酸转移酶调节了炎症.
Arielle H Gabalski1,2, Aisling Tynan1, Tea Tsaava1
1Institute of Bioelectronic Medicine, The Feinstein Institutes for Medical Research, Manhasset, New York, USA.
Journal of internal medicine
|November 27, 2023
概括
血中的细胞外胆酸转移酶 (ChAT) 活性在炎症期间增加,并有助于减少炎症反应. 这表明,ChAT可能是潜在的炎症状况治疗点.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 生物化学 生物化学
背景情况:
- 胆乙转移酶 (ChAT) 对于乙胆的合成至关重要,它是胆性抗炎途径的关键介质.
- 虽然神经元中的细胞质CHAT已得到充分研究,但其细胞外存在和功能在很大程度上仍未知.
研究的目的:
- 为了研究细胞外ChAT活性是否对炎症作出反应并调节细胞因子的产生.
- 评估CHAT作为潜在的炎症调节剂和治疗剂.
主要方法:
- 开发了用于量化血中CHAT活性的新方法.
- 在小鼠的炎症挑战后,评估了血ChAT活性的变化.
- 利用重组ChAT (r-ChAT) 和抗ChAT抗体来研究ChAT在炎症中的作用.
- 在人类败血症患者中检查了血ChAT水平.
主要成果:
- 活性ChAT在小鼠血中循环,其活性在对内毒素和迷走神经刺激的反应中增加.
- 血ChAT活性增加与瘤亡因子 (TNF) 水平降低相关.
- 在临床前模型中,使用r-ChAT降低了TNF产生和炎症性肠病活性.
- 在人类败血症患者中观察到血CHAT水平升高.
结论:
- 细胞外ChAT活性作为炎症的逆调节剂.
- 酸具有作为炎症性疾病治疗剂的潜力.
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