基于蛋白组学探讨717解毒合剂调控蝮蛇伤大鼠细胞外基质稳态的作用机制
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1.江西中医药大学附属医院中医外科;2.江西中医药大学附属医院;3.江西中医药大学中医学院

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国家自然科学基金地区项目资助(81960874,82260937);江西省自然科学基金重点项目资助(20202ACB206010);江西中医药大学科技创新团队(CXTD22009)。


Exploring the mechanism of 717 Jiedu Decoction in regulating extracellular matrix homeostasis on rats after Agkistrodon halys bite based on proteomics
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1.Department of Chinese Medicine Surgery,Affiliated Hospital of Jiangxi University of Chinese Medicine;2.Affiliated Hospital of Jiangxi University of Chinese Medicine;3.主要从事毒蛇咬伤的病理机制和中医防治研究

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    摘要:

    目的 采用蛋白组学技术,全面分析蝮蛇毒致毒及717解毒合剂解毒过程中细胞外蛋白组学信息,探寻蝮蛇毒致局部组织损伤与修复新的靶分子。方法 经腓肠肌注射蝮蛇毒溶液建立蝮蛇伤大鼠模型,实验分为对照组、模型组、阳性对照药物抗蝮蛇毒血清组和717解毒合剂组(低、中、高剂量)。首先采用化学去垢剂脱细胞制备细胞外基质(ECM),进行蛋白组学检测与生物信息学分析;再用蛋白免疫印迹(WB)法鉴定目标蛋白的表达。结果 经蛋白组学检测,共鉴定蛋白6523个,筛选细胞外蛋白606个。(1)与模型组比较,中药组差异表达蛋白(DEPs)共36种,其中上调的25种,下调的11种;有7种蛋白在两个比较组中呈共同差异表达。基因本体论(GO)富集分析发现,DEPs主要在应激、防御、蛋白水解、生物间相互作用和纤维蛋白溶解、肽酶调节剂活性、蛋白结合中显著富集。京都基因与基因组百科全书(KEGG)通路分析发现,DEPs富集的信号通路有ECM受体相互作用、肌动蛋白细胞骨架调控、中性粒细胞胞外陷阱形成、补体和凝血级联通路、流体剪切应力与动脉粥样硬化、代谢通路等。蛋白功能互作网络分析发现,Vitronectin、Fibrinogen alpha chain、Kininogen 1、Plasminogen、Prothrombin、Integrin α2b等蛋白位于网络的关键节点。(2)选取共同DEPs Kininogen 1、Fetuin-B及蛋白功能互作网络中心节点蛋白Vitronectin、Integrin α2进行WB验证,与模型组比较,抗蝮蛇毒血清组、717解毒合剂组(低、中、高剂量)Kininogen 1、Fetuin-B蛋白表达下调(P<0.01),Vitronectin、Integrin α2蛋白表达上调(P<0.01),且各剂量组间存在剂量相关性。结论 717解毒合剂调控蝮蛇伤大鼠局部ECM重塑可能与ECM受体相互作用、肌动蛋白细胞骨架调控、中性粒细胞胞外陷阱形成等信号通路相关,差异蛋白Vitronectin、Integrin α2、Kininogen 1、Fetuin-B可能为关键靶点。

    Abstract:

    Objective To comprehensively analyze the extracellular proteomic information during the toxicity induced by Agkistrodon halys venom and the detoxification process of 717 Jiedu Decoction, aiming to explore new target molecules involved in local tissue damage and repair through proteomics technology. Methods A rat model of Agkistrodon halys bite was established by injecting Agkistrodon halys venom solution into gastrocnemius muscle. Animals were divided into control, model, positive control group treated with anti-venom serum, and 717 Jiedu Decoction (low, medium, and high doses) groups. First, extracellular matrix (ECM) was prepared by chemical detergent-mediated decellularization, followed by proteomic detection and bioinformatics analysis., then the expression of target proteins was verified by Western Blot (WB). Results A total of 6523 proteins were identified through proteomic analysis, with 606 extracellular proteins screened. (1) Compared with the model group, there were 36 expressed proteins (DEPs) in the traditional Chinese medicine group, including 25 up-regulated and 11 down-regulated proteins. 7 proteins showed common differential expression in the two comparison groups. Gene Ontology (GO) enrichment analysis revealed that DEPs were significantly enriched in response to stress, defense response, proteolysis, biological interactions and fibrinolysis, peptidase regulator activity, protease binding. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis found that the DEPs were mainly enriched in the signal pathways of ECM-receptor interaction, regulation of actin cytoskeleton, neutrophil extracellular trap formation, complement and coagulation cascades, fluid shear stress and atherosclerosis, metabolic pathways, etc. Protein functional interaction network analysis revealed that proteins such as Vitronectin, Fibrinogen alpha chain, Kininogen 1, Plasminogen, Prothrombin, Integrin α2b are located at key nodes in the network. (2) WB validation was performed on the common DEPs (Kininogen 1 and Fetuin-B) and the central node proteins in the protein functional interaction network (Vitronectin and Integrin α2). Compared with the model group, the positive control group treated with anti-venom serum and 717 Jiedu Decoction groups (low, medium, and high doses) downregulated the expression of Kininogen 1 and Fetuin-B (P < 0.01), while upregulated the expression of Vitronectin and and Integrin α2 (P < 0.01), with dose-dependent effects observed among all dose of 717 Jiedu Decoction groups. Conclusions The regulation of local ECM remodeling in rats after Agkistrodon halys bite by 717 Jiedu Decoction may be related to signaling pathways such as ECM-receptor interaction, regulation of actin cytoskeleton, and neutrophil extracellular trap formation. DEPs such as Vitronectin, Integrin α2, Kininogen 1, and Fetuin-B may be key targets.

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  • 收稿日期:2025-11-25
  • 最后修改日期:2026-04-22
  • 录用日期:2026-05-12
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