通过"计算引导实验"战略发现来自Whitmania pigra的血素向抗凝
Yu-Tong Hua1,2, Rui-Juan Dong3, Yin Li1
1School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China.
概括
研究人员发现了一种新型的抗凝固,PEPWP,来自血Whitmania pigra. 这种可以有效地抑制血栓,显示出开发新型血栓预防药物的巨大潜力.
科学领域:
- 生物化学 生物化学
- 药理学 药理学是指药理学的学科.
- 分子生物学分子生物学
背景情况:
- 抗凝固药物开发对于治疗血栓性疾病至关重要.
- 天然产品,特别是来自吸血虫的产品,为新型抗凝剂提供了有希望的来源.
- 查安全有效的血栓激素抑制剂是一个关键的研究领域.
研究的目的:
- 鉴定和描述来自非吸血吸血水Whitmania pigra (WP) 的新型血栓抑制剂.
- 用计算引导的实验方法阐明一种新发现的的抗凝机制.
- 评估已识别的的体外和体内抗凝剂疗效和安全性.
主要方法:
- 从WP水解剂构建一个类库.
- 虚拟选使用分子对接和动力学模拟.
- 在体外和体内验证,包括血栓时间,前血栓时间,表面等离子体共振 (SPR) 和动物模型.
- 胺-胺结合的结构分析.
主要成果:
- 发现了一种针对血栓激素的新型抗凝固,即PEPWP (LRELEDALEQER).
- PEPWP在体外证明了对血时间 (TT) 和前血时间 (PT) 的剂量依赖延长.
- SPR证实了PEPWP与血栓的强有力的结合 (Kd = 7.242 × 10-6 mol/L).
- 在体内研究表明,PEPWP延长了TT,并降低了急性血液静止的老鼠的血液粘度.
- 结构分析表明,PEPWP与血栓的Exosite II结合,其中关键的残留物是Arg233和Arg101.
结论:
- PEPWP通过向血栓,表现出显著的抗凝剂活性.
- 鉴定的显示出开发新型抗凝固疗法的潜力.
- "计算机指导实验"策略在选天然抗凝上被证明是有效的.
相关概念视频
Anticoagulant Drugs: Low-Molecular-Weight Heparins
1.7K
Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
1.7K
Venous Thrombosis III: Interprofessional Care
280
Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
280


