摘要
基于网络药理学方法探讨柠檬精油(lemon essential oil,LEO)干预焦虑症的作用机制并进行实验验证.GC-MS测定LEO组成,从TCMSP平台挖掘LEO的作用靶点;利用OMIM、GeneCards数据库获得焦虑症靶点;利用Venny获得LEO-焦虑症的交集靶点,进行GO和KEGG富集;利用Cytoscape构建"成分-靶点-通路-疾病"网络,利用1-Click Docking对关键成分与靶点进行分子对接.利用细胞炎症模型进行验证.从构建的网络中得到LEO的19种活性成分如柠檬烯、α-松油醇、β-蒎烯、乙酸橙花酯、4-萜品醇等,通过作用于18个疾病靶点(占总靶点78.26%)如GABRA2、MAO、DRD1、GRIA2等,调控20条信号通路如神经活性配体-受体相互作用、羟色胺能突触、多巴胺能突触等.柠檬精油对DPPH、ABTS自由基有抑制作用,能降低由脂多糖(lipopolysaccharide,LPS)诱导HaCaT细胞内活性氧(reactive oxygen species,ROS)水平,降低炎症因子NO、TNF-α及IL-6水平.LEO通过多种有效成分多靶点调控多条信号通路降低细胞氧化应激、抑制炎症反应,从而干预焦虑症.
Abstract
The mechanism of lemon essential oil(LEO)intervention in anxiety disorder was investigated using network phar-macology,and its efficacy was validated through experimental verification.The composition of LEO was determined by GC-MS,and the target compounds in LEO were identified from the Traditional Chinese Medicine Systems Pharmacology(TCM-SP)platform.The target for anxiety disorder was obtained from the OMIM and GeneCards databases.The intersection target of LEO-anxiety disorder was determined using Venny,and subsequent enrichment analyses were performed for GO and KEGG pathways.The"component-target-pathway-disease"network was constructed using Cytoscape,and the key components were subjected to target docking through 1-Click Docking.The cellular inflammation model was employed for validation.The con-structed network identified a total of nineteen active components in LEO,including limonene,α-terpineol,β-pinene,neroli ac-etate,4-terpinol,and others.The compound exerts its effects on 18 disease targets,thereby modulating 20 signaling pathways including neuroactive ligand-receptor interaction,serotonergic synapses,and dopaminergic synapsesamong others.The eighteen disease targets accounted for 78.26%of the total target count,including GABRA2,MAO,DRD1,GRIA2,etc.The LEO dem-onstrates inhibitory effects on DPPH and ABTS free radicals,suppresses the generation of reactive oxygen species in Lipopo-lysaccharide-induced HaCaT cells,and reduces the levels of inflammatory factors NO,TNF-α,and IL-6.The various active components of LEO can modulate multiple signaling pathways through interactions with multiple targets,thereby attenuating cellular oxidative stress,suppressing inflammatory responses,and ultimately intervening in anxiety disorders.
基金项目
宁波市科技局重点公益性科技计划(2021)(2021S079)
省一流学科"生物工程"学生创新项目(2022)(CX2022031)