申请人:The Trustees of Columbia University in the City of New York
公开号:US20030140360A1
公开(公告)日:2003-07-24
The present invention provides for a transgenic nonhuman mammal whose germ or somatic cells contain a nucleic acid molecule which encodes calcineurin or a variant thereof under the control of a regulatable promoter, introduced into the mammal, or an ancestor thereof, at an embryonic stage. The present invention also provides for a method of evaluating whether a compound is effective in improving long-term memory in a subject suffering from impaired long-term memory which comprises: (a) administering the compound to the transgenic nonhuman mammal of claim 1 wherein the mammal has increased brain-specific calcineurin activity due to expression of the nucleic acid, and (b) comparing the long-term memory of the mammal in step (a) with the long-term memory of the mammal in the absence of the compound so as to determine whether the compound is effective in rescuing the long-term memory defect in the subject.
本发明提供了一种转基因非人类哺乳动物,其生殖细胞或体细胞含有在可调节启动子控制下编码钙调素或其变体的核酸分子,该核酸分子在胚胎阶段被导入哺乳动物或其祖先体内。本发明还提供了一种评估化合物是否能有效改善长期记忆受损者的长期记忆的方法,该方法包括:(a) 给权利要求 1 的转基因非人哺乳动物施用化合物,其中哺乳动物因表达核酸而增加了脑特异性钙调素活性;以及 (b) 将步骤(a)中哺乳动物的长时记忆与未施用化合物时哺乳动物的长时记忆进行比较,以确定化合物是否能有效挽救受试者的长时记忆缺陷。