基于生物信息学探讨复方丹参滴丸改善阿司匹林抵抗的潜在机制

被引:2
|
作者
高晟玮 [1 ,2 ]
贾福运 [1 ,2 ]
谷旭放 [1 ]
张露丹 [1 ]
钟钰 [1 ,2 ]
吕子琛 [1 ,2 ]
张博文 [1 ,2 ]
吕春晓 [1 ]
王保和 [2 ,3 ]
机构
[1] 天津中医药大学第二附属医院
[2] 天津中医药大学
[3] 天津中医药大学第一附属医院
关键词
复方丹参滴丸; 阿司匹林抵抗; 活血化瘀; 生物信息学; 机器学习;
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摘要
目的 基于生物信息学技术构建阿司匹林抵抗(aspirin resistance,AR)分子预测模型,探究复方丹参滴丸改善AR潜在机制。方法 在基因表达数据库(Gene Expression Omnibus,GEO)中获取AR和阿司匹林敏感(aspirin sensitivity,AS)相关的芯片数据,筛选差异表达基因(diffially express genes,DEGs),对AR和AS的DEGs进行富集分析,注释其功能;采用机器学习算法构建AR分子预测模型;在中国知网、万方、维普、PubMed、Web of Science数据库中获取复方丹参滴丸指纹图谱,根据Lipinski规则预测药物活性成分,使用Swiss Target Prediction数据库预测活性成分作用靶点,将DEGs和药物靶点取交集,获得复方丹参滴丸改善AR的潜在靶点,在metascape平台中对靶点基因进行功能注释;使用Autodock软件对核心靶点与活性成分进行分子对接;应用单样本基因集富集分析(single sample gene set enrichment analysis,ssGSEA)算法对复方丹参滴丸干预AR的每个靶点分别进行通路富集分析,最后构建复方丹参滴丸改善AR的“成分-靶点-通路-功能”桑基图。结果 共得到AR相关DEGs 597个,其中上调基因292个,下调基因305个。DEGs富集结果提示,AR相关基因主要定位在血小板α颗粒、分泌颗粒腔、细胞质囊泡腔上,通过介导花生四烯酸代谢、氧化磷酸化、WNT信号通路、白细胞介素-17(interleukin-17,IL-17)信号通路、类固醇同源物生物合成等信号通路,参与血液凝固、血小板活化、核因子-κB(nuclear factor-κB,NF-κB)转录因子活性、脂质代谢过程的负调控、白细胞活化相关炎症反应、肾上腺素受体信号通路、氧化应激反应等生物过程,发挥调控肝素结合、胰岛素受体结合、血小板衍生生长因子受体结合、肾上腺素受体活性、生长因子受体结合、磷脂酰肌醇激酶活性、主要组织相容性复合物Ⅱ(MHC Ⅱ)类受体活性等功能。基于机器学习算法获得9个AR的分子标志物,并构建了曲线下面积(area under curve,AUC)=1的精准预测模型。通过网络药理学的方法获得复方丹参滴丸改善AR的10个活性成分和14个作用靶点及3个核心靶点,分子对接结果表明核心靶点和所有活性成分均能自发结合,富集分析提示复方丹参滴丸能够通过调控血栓形成、糖脂代谢、炎症反应、氧化应激、激素水平改善AR。结论 由9个AR的分子标志物组成的AR预测模型具有较为精准的预测性能;除血小板活化和聚集外,炎症反应、激素水平、氧化应激、糖脂代谢同样参与了AR的形成,复方丹参滴丸能够通过多靶点调控以上途径改善AR。
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页码:4824 / 4835
页数:12
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