申请人:POSTECH ACADEMY-INDUSTRY FOUNDATION
公开号:US10668061B2
公开(公告)日:2020-06-02
Provided are a posttraumatic stress disorder (PTSD) animal model in which dopamine receptor subtype 4 (D4R) is damaged or deficient, a method for preparing the same, a method for screening a drug for treating PTSD using the same, and a pharmaceutical composition for treating PTSD comprising a drug detected by the screening method. As it is identified that a specific type of dopamine receptor is associated with a mechanism for fear memory expression induced by long-term depression (LTD), the understanding of pathogenesis of PTSD may be heightened, the animal model exhibiting similar clinical conditions of PTSD and the method for preparing the same may be applied in analyses for stability and effectiveness of a therapeutic agent for PTSD and screening of a therapeutic drug. Further, an agonist of D4R contained in the composition has been approved by the US FDA and clinically used for psychiatric diseases such as schizophrenia, and thus may be immediately used for clinical applications for PTSD symptoms.
本发明提供了一种多巴胺受体亚型4(D4R)受损或缺乏的创伤后应激障碍(PTSD)动物模型、一种制备该动物模型的方法、一种利用该动物模型筛选治疗PTSD药物的方法,以及一种治疗PTSD的药物组合物,该药物组合物包含通过该筛选方法检测到的药物。由于确定了特定类型的多巴胺受体与长期抑郁(LTD)诱导的恐惧记忆表达机制有关,因此可以加深对创伤后应激障碍发病机制的理解,表现出类似创伤后应激障碍临床症状的动物模型及其制备方法可用于分析创伤后应激障碍治疗剂的稳定性和有效性以及筛选治疗药物。此外,本发明组合物中所含的一种D4R的激动剂已被美国FDA批准并用于精神分裂症等精神疾病的临床治疗,因此可立即用于创伤后应激障碍症状的临床应用。