Full human gene replacement mouse models of Alzheimer's Disease

该应用程序计划继续并扩大Koob实验室之间的协作， 明尼苏达大学和模特广告中心。我们已经开发出基因替代技术 (GR)允许我们用完整的人类同源等位基因替换老鼠基因的方法。 这一项目的GR目标包括许多对致病因素最重要的人类基因。 AD，包括APP、PSEN1、PSEN2和MAPT，以及在 调控AD风险，包括APOE基因簇、TREM2基因簇、临界区 MS4A基因簇和INPP5D。将为每个GR目标生成一组模型 基因组区域，由带有wt人类基因组序列的控制线和至少一个 与同一人类基因组中致病突变或风险变异相匹配的线 序列。每个GR等位基因的基本QC评估将在华盛顿大学进行 然后，明尼苏达州和Model-AD将通过确认每一条变异系表现出 预期的AD相关内表型。通过QC的人类等位基因和 然后，内表型验证将被合并到具有附加AD的基本AD模型中 等位基因，最终目标是重建AD的人类遗传学和病理生理学 在老鼠身上尽可能地接近。JAX将分发此项目生成的所有鼠标行 没有任何限制。

This application is proposing to continue and expand the collaboration between the Koob lab at the University of Minnesota and the MODEL-AD Center. We have developed Gene Replacement (GR) approaches that allow us to replace mouse genes with their full human orthologue alleles. The GR targets for this project include many of the human genes most central to the etiology of AD, including APP, PSEN1, PSEN2, and MAPT, as well as genes that play pivotal roles in modulating AD risk, including the APOE gene cluster, the TREM2 gene cluster, the critical region of the MS4A gene cluster, and INPP5D. A set of models will be generated for each GR target genomic region, consisting of a control line with a wt human genomic sequence, and at least one matching line with either a pathogenic mutation or risk variant in that same human genomic sequence. Basic QC evaluations of each GR allele will be performed at the University of Minnesota, and MODEL-AD will then validate them by confirming that each variant line exhibits the expected AD-related endophenotypes. The human alleles that pass the QC and endophenotype validations will then be incorporated into base AD models with additional AD alleles, with the ultimate goal of recreating the human genetics and pathophysiology of AD as closely as is possible in a mouse. JAX will distribute all mouse lines generated by this project without restrictions.