基于蛋白质组的风险预测和慢性阻塞性肺病药物标的识别
Yuanyuan Zhang1, Ziliang Ye1, Sisi Yang1
1Division of Nephrology, Nanfang Hospital, Southern Medical University; National Clinical Research Center for Kidney Disease; State Key Laboratory of Multi-organ Injury Prevention and Treatment; Guangdong Provincial Institute of Nephrology; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou, Guangdong, China.
一个新的32蛋白风险评分准确地预测慢性阻塞性肺病 (COPD),优于遗传风险评分. 一个简化的10蛋白质面板也显示出在COPD预测中临床使用的希望.
科学领域:
- 生物标志物发现发现
- 基因组学就是基因组学.
- 蛋白质组学是指蛋白质组学.
- 肺部医学 肺部医学
背景情况:
- 慢性阻塞性肺病 (COPD) 构成了全球重大健康负担.
- 目前的COPD风险预测模型在准确性和范围方面存在局限性.
- 需要改进的方法来预测COPD的发展和进展.
研究的目的:
- 开发和验证一种新的基于蛋白质的风险评分,用于预测COPD.
- 为了比较基于蛋白质的得分与多基因风险得分 (PRS) 和已确定的临床风险因素的表现.
- 调查与COPD相关的潜在生物途径和因果蛋白-疾病关联.
主要方法:
- 对英国大型生物库队列 (n=27,796) 的培训和测试分析,在苏格兰/威尔士队列 (n=3534) 中进行外部验证.
- 利用最小绝对收缩和选择操作员 (LASSO) 回归来确定预测性蛋白质.
- 使用哈雷尔的C指数,净重新分类改进 (NRI) 和综合歧视改进指数 (IDI) 评估模型性能;进行了途径和门德尔随机化 (MR) 分析.
主要成果:
- 在测试组中,32种蛋白质的风险评分在预测发生的COPD (C指数0.826) 中显示出高准确度,表现优于PRS (C指数0.510).
- 一个简化的10蛋白质小组维持了强大的预测性能 (C指数0.816) 和增加临床因素 (NRI 0.251-0.318) 时改善了风险重新分类.
- 核磁共振分析发现ADM和SCGB1A1具有保护性,而MMP12和TNFRSF10A增加了COPD风险,涉及炎症和细胞外重塑通路.
结论:
- 与遗传风险得分相比,蛋白质生物标志物为COPD提供了更好的预测性能,并补充了临床因素.
- 一个可行的10蛋白质面板可以帮助临床COPD风险评估.
- 该研究确定了COPD的新生物途径和潜在治疗点,需要进一步验证临床实施.
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