便蛋白质学将中性粒细胞脱粒与酒精相关性肝炎患者的死亡率联系在一起
Henriette Kreimeyer1, Carlos G Gonzalez2,3, Marcos F Fondevila1
1Department of Medicine, University of California San Diego, La Jolla, California, USA.
Gut
|July 20, 2024
概括
便中性粒细胞降粒蛋白,包括髓氧化酶 (MPO),在与酒精相关的肝炎 (AH) 中增加. 升高的MPO预测AH患者的短期生存,提供潜在的非侵入性预后标志物.
科学领域:
- 胃肠病学和肝病学
- 生物化学 生化学
- 免疫学 免疫学 免疫学
背景情况:
- 酒精相关性肝炎 (AH) 是一种严重的肝病,死亡率高.
- 酒精消费诱导肠道失调,细菌转移和炎症,增加肝病患者中性粒细胞的活动.
研究的目的:
- 在患有酒精使用障碍 (AUD) 和AH的患者中调查便蛋白质组概况.
- 确定潜在的非侵入性生物标志物,用于预测AH的预后.
主要方法:
- 协同质量标签 (TMT) 蛋白质组学被用来分析来自对照组,AUD患者和AH患者的便蛋白质.
- 过度表示分析 (Reactome,基因本体学) 确定了关键的蛋白质通路.
- 便骨髓氧化酶 (MPO) 水平在使用ELISA的独立AH队列中被验证为预后生物标志物.
主要成果:
- 在对照组,AUD组和AH组之间,便蛋白质组形状显著不同.
- 与中性粒细胞和脱粒路径相关的蛋白质在AH患者中升高,与疾病严重程度相关.
- 便MPO水平在AH患者中显著更高,预测60天死亡率.
结论:
- 与中性粒细胞脱粒相关的便蛋白增加是AH的特征.
- 便MPO作为一个有希望的非侵入性预后生物标志物用于AH的短期生存.
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