血蛋白学研究慢性阻塞性肺部疾病的频繁恶化和不频繁恶化的表型
Chengyu Yang1,2, Li Yang3,4, Lei Yang5
1Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China.
慢性阻塞性肺病 (COPD) 的频繁恶化与特定的血蛋白质变化有关. 肌酸激酶,M型 (CKM) 和诱导脂肪储存的跨膜蛋白1 (FITM1) 显示出这种COPD表型的潜在生物标志物.
科学领域:
- 在呼吸道疾病中发现蛋白质组学和生物标志物.
- 研究慢性阻塞性肺病 (COPD) 现型的分子机制.
背景情况:
- 频繁恶化 (FE) 是慢性阻塞性肺病 (COPD) 的严重表型,其病因不明.
- 确定FE的可靠生物标志物对于改善患者的治疗结果和向治疗至关重要.
研究的目的:
- 使用蛋白质学识别与慢性阻塞性肺病 (COPD) 的频繁恶化 (FE) 现型相关的血蛋白.
- 评估潜在的蛋白质生物标志物用于COPD患者FE的预测,诊断和治疗管理.
主要方法:
- 在稳定的COPD患者中分析血蛋白质配置的横截面研究.
- 数据独立的基于获取的蛋白质组学和生物信息学,用于在FE和罕见恶化 (IE) 组之间选差异表达蛋白质 (DEP).
- 与酶相关的免疫吸收试验 (ELISA) 用于对候选生物标记物的验证.
主要成果:
- 在FE和IE组之间确定了47种不同表达的蛋白质 (DEP) (20种上调,27种下调).
- 与FE相关的关键生物功能和信号通路得到了丰富,包括中性粒细胞脱粒和氨酸/氨酸代谢.
- 一个由11个联合DEP组成的小组显示出高诊断准确度 (AUC=0.985) 来区分FE与IE;CKM和FITM1被确定为重要的潜在生物标志物,显示FE组的血水平降低.
结论:
- 血蛋白质分析为COPD中FE表型的病原发生提供了新的见解.
- 肌酸激酶,M型 (CKM) 和诱导脂肪储存的跨膜蛋白1 (FITM1),以及组合的生物标志物小组,显示出精确诊断和治疗COPD中的FE的前景.
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