抗缺血性脑卒中药物非临床药效学评价体系探索
Exploration of non-clinical pharmacodynamics evaluation system of ischemic stroke
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摘要: 缺血性脑卒中(ischemic stroke, IS) 是导致全球成年人致死致残的主要病因之一, 其核心病理机制为脑血流中断引发的神经元缺血缺氧性损伤。目前, 临床治疗以静脉溶栓和血管内取栓为主, 但这些手段受限于严格的时间窗(通常≤ 4.5 h) 及部分患者面临潜在出血风险, 且对血管再通后神经损伤的修复作用有限。尽管近年来神经保护剂研发活跃, 但在临床转化中因疗效不足或安全性问题相继失败, 凸显了疾病机制的复杂性与临床前评价体系的局限性。因此, 针对IS的病理级联反应, 开发脑细胞保护药物, 成为突破当前治疗瓶颈的关键方向。本文结合近年来国内外治疗IS药物的研发进展, 主要从模型构建、药效评价指标及相关分子机制方面对治疗IS药物非临床药效学评价体系进行归纳总结, 为IS非临床药效学评价体系的构建与优化提供有益探索, 有助于推动IS治疗药物的研发进程, 为临床治疗提供更多有效的治疗策略。Abstract: Ischemic stroke (IS) remains a leading cause of mortality and disability among adults worldwide, with its core pathological mechanism rooted in ischemic-hypoxic neuronal injury triggered by cerebral blood flow interruption. Current clinical treatments primarily rely on intravenous thrombolysis and endovascular thrombectomy. However, these approaches are constrained by strict therapeutic time windows (typically ≤ 4.5 h), bleeding risks in certain patients, and limited neurorestorative effects following reperfusion. Despite active development of neuroprotective agents and anti-inflammatory drugs in recent years, most have failed in clinical translation due to insufficient efficacy or safety concerns, highlighting the complexity of disease mechanisms and limitations of preclinical evaluation systems. Consequently, developing therapeutics that simultaneously address reperfusion protection and neural repair by targeting the pathological cascade of IS has emerged as a critical direction to overcome current therapeutic bottlenecks. This review synthesizes recent advances in domestic and international IS drug development in recent years, focusing on model establishment, efficacy evaluation metrics, and relevant molecular mechanisms to systematically summarize the preclinical pharmacodynamic evaluation framework for IS therapeutics. The findings provide valuable insights for optimizing preclinical evaluation systems, accelerating drug development, and expanding effective clinical treatment strategies for IS.
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