Abdul Wahab Akram , Jung-Hae Shin , Uyanga Batmunkh , Evelyn Saba , Yong-Myung Kang , Sunjun Jung , Jee Eun Han , Sung Dae Kim , Dongmi Kwak , Hyuk-woo Kwon , Man Hee Rhee
{"title":"人参皂苷Rg5通过调控GPVI信号通路和氯化铁诱导血栓形成抑制血小板聚集","authors":"Abdul Wahab Akram , Jung-Hae Shin , Uyanga Batmunkh , Evelyn Saba , Yong-Myung Kang , Sunjun Jung , Jee Eun Han , Sung Dae Kim , Dongmi Kwak , Hyuk-woo Kwon , Man Hee Rhee","doi":"10.1016/j.jgr.2025.04.002","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Platelet hyperactivation is a major factor in thrombotic complications such as myocardial infarction and ischemic stroke. Ginsenoside Rg5 is a minor ginsenoside, and among its various beneficial pharmacological effects, its antithrombotic potential has not been extensively studied.</div></div><div><h3>Methods</h3><div>Human platelets were isolated and treated with Rg5 (35-100 μM) before stimulation with agonists such as collagen, thrombin, and U46619. Platelet aggregation, granule secretion, calcium mobilization, thromboxane A<sub>2</sub> production, fibrinogen binding, and clot retraction were evaluated. The effects of Rg5 on signaling pathways were determined via Western blot analysis of key proteins. <em>In vivo</em>, the antithrombotic efficacy was assessed using ferric chloride (FeCl<sub>3</sub>)-induced thrombosis in mice.</div></div><div><h3>Results</h3><div>Rg5 dose-dependently inhibited collagen-induced platelet aggregation (IC<sub>50</sub> = 42.5 μM) and selectively inhibited GPVI-mediated signaling compared to thrombin and U46619. Rg5 suppressed intracellular calcium mobilization, granule secretion, and thromboxane A<sub>2</sub> production, with no cytotoxicity observed. Rg5 downregulated key signaling proteins (p-PI3K, p-AKT, p-cPLA2, and p-p38) while upregulating p-VASP (S157 and S239), suggesting its role in elevating cyclic nucleotide signaling. Additionally, Rg5 inhibited CD162 expression that was induced in the presence of collagen and oxidized low-density lipoprotein. It also prevented fibrinogen and fibronectin binding and significantly reduced clot retraction. <em>In vivo</em>, Rg5 (20 mg/kg) significantly prolonged the carotid artery occlusion time and prevented thrombus formation, outperforming aspirin (100 mg/kg).</div></div><div><h3>Conclusion</h3><div>Ginsenoside Rg5 exhibits potent antiplatelet activity by selectively targeting GPVI-mediated platelet activation and modulating key intracellular signaling pathways. These results suggest that Rg5 could be utilized to develop safer and natural antiplatelet therapies.</div></div>","PeriodicalId":16035,"journal":{"name":"Journal of Ginseng Research","volume":"49 4","pages":"Pages 460-469"},"PeriodicalIF":6.8000,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ginsenoside Rg5 inhibits platelet aggregation by regulating GPVI signaling pathways and ferric chloride-induced thrombosis\",\"authors\":\"Abdul Wahab Akram , Jung-Hae Shin , Uyanga Batmunkh , Evelyn Saba , Yong-Myung Kang , Sunjun Jung , Jee Eun Han , Sung Dae Kim , Dongmi Kwak , Hyuk-woo Kwon , Man Hee Rhee\",\"doi\":\"10.1016/j.jgr.2025.04.002\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Background</h3><div>Platelet hyperactivation is a major factor in thrombotic complications such as myocardial infarction and ischemic stroke. Ginsenoside Rg5 is a minor ginsenoside, and among its various beneficial pharmacological effects, its antithrombotic potential has not been extensively studied.</div></div><div><h3>Methods</h3><div>Human platelets were isolated and treated with Rg5 (35-100 μM) before stimulation with agonists such as collagen, thrombin, and U46619. Platelet aggregation, granule secretion, calcium mobilization, thromboxane A<sub>2</sub> production, fibrinogen binding, and clot retraction were evaluated. The effects of Rg5 on signaling pathways were determined via Western blot analysis of key proteins. <em>In vivo</em>, the antithrombotic efficacy was assessed using ferric chloride (FeCl<sub>3</sub>)-induced thrombosis in mice.</div></div><div><h3>Results</h3><div>Rg5 dose-dependently inhibited collagen-induced platelet aggregation (IC<sub>50</sub> = 42.5 μM) and selectively inhibited GPVI-mediated signaling compared to thrombin and U46619. Rg5 suppressed intracellular calcium mobilization, granule secretion, and thromboxane A<sub>2</sub> production, with no cytotoxicity observed. Rg5 downregulated key signaling proteins (p-PI3K, p-AKT, p-cPLA2, and p-p38) while upregulating p-VASP (S157 and S239), suggesting its role in elevating cyclic nucleotide signaling. Additionally, Rg5 inhibited CD162 expression that was induced in the presence of collagen and oxidized low-density lipoprotein. It also prevented fibrinogen and fibronectin binding and significantly reduced clot retraction. <em>In vivo</em>, Rg5 (20 mg/kg) significantly prolonged the carotid artery occlusion time and prevented thrombus formation, outperforming aspirin (100 mg/kg).</div></div><div><h3>Conclusion</h3><div>Ginsenoside Rg5 exhibits potent antiplatelet activity by selectively targeting GPVI-mediated platelet activation and modulating key intracellular signaling pathways. 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Ginsenoside Rg5 inhibits platelet aggregation by regulating GPVI signaling pathways and ferric chloride-induced thrombosis
Background
Platelet hyperactivation is a major factor in thrombotic complications such as myocardial infarction and ischemic stroke. Ginsenoside Rg5 is a minor ginsenoside, and among its various beneficial pharmacological effects, its antithrombotic potential has not been extensively studied.
Methods
Human platelets were isolated and treated with Rg5 (35-100 μM) before stimulation with agonists such as collagen, thrombin, and U46619. Platelet aggregation, granule secretion, calcium mobilization, thromboxane A2 production, fibrinogen binding, and clot retraction were evaluated. The effects of Rg5 on signaling pathways were determined via Western blot analysis of key proteins. In vivo, the antithrombotic efficacy was assessed using ferric chloride (FeCl3)-induced thrombosis in mice.
Results
Rg5 dose-dependently inhibited collagen-induced platelet aggregation (IC50 = 42.5 μM) and selectively inhibited GPVI-mediated signaling compared to thrombin and U46619. Rg5 suppressed intracellular calcium mobilization, granule secretion, and thromboxane A2 production, with no cytotoxicity observed. Rg5 downregulated key signaling proteins (p-PI3K, p-AKT, p-cPLA2, and p-p38) while upregulating p-VASP (S157 and S239), suggesting its role in elevating cyclic nucleotide signaling. Additionally, Rg5 inhibited CD162 expression that was induced in the presence of collagen and oxidized low-density lipoprotein. It also prevented fibrinogen and fibronectin binding and significantly reduced clot retraction. In vivo, Rg5 (20 mg/kg) significantly prolonged the carotid artery occlusion time and prevented thrombus formation, outperforming aspirin (100 mg/kg).
Conclusion
Ginsenoside Rg5 exhibits potent antiplatelet activity by selectively targeting GPVI-mediated platelet activation and modulating key intracellular signaling pathways. These results suggest that Rg5 could be utilized to develop safer and natural antiplatelet therapies.
期刊介绍:
Journal of Ginseng Research (JGR) is an official, open access journal of the Korean Society of Ginseng and is the only international journal publishing scholarly reports on ginseng research in the world. The journal is a bimonthly peer-reviewed publication featuring high-quality studies related to basic, pre-clinical, and clinical researches on ginseng to reflect recent progresses in ginseng research.
JGR publishes papers, either experimental or theoretical, that advance our understanding of ginseng science, including plant sciences, biology, chemistry, pharmacology, toxicology, pharmacokinetics, veterinary medicine, biochemistry, manufacture, and clinical study of ginseng since 1976. It also includes the new paradigm of integrative research, covering alternative medicinal approaches. Article types considered for publication include review articles, original research articles, and brief reports.
JGR helps researchers to understand mechanisms for traditional efficacy of ginseng and to put their clinical evidence together. It provides balanced information on basic science and clinical applications to researchers, manufacturers, practitioners, teachers, scholars, and medical doctors.