Interdisciplinary Research Network on Biologically Active Tau Aggregate Polymorphs from Alzheimer's Disease and Related Dementias

项目摘要 Tau聚集是阿尔茨海默病和相关痴呆症的共同病理学，称为Tau病。 因为每种疾病都有一种独特的聚合多态性和共病组合， 影响疾病的进程和严重程度，阐明tau聚集体结构与 生物活性已成为该领域的高度优先事项。然而，迄今为止的进展有限， 缺乏严格标准化的每种形式的tau蛋白病的聚集制剂以及缺乏工具 需要选择性地检测它们在生物模型和临床标本中的存在。拟议 生物活性Tau聚合物多态性跨学科研究网络旨在解决这一需求 通过（1）从真正的阿尔茨海默氏病、皮质基底神经病和阿尔茨海默病中分离全系列的生物活性tau聚集体， 变性、进行性核上性麻痹和皮克病脑组织，（2）建立其结构 通过生物物理分析，（3）开发用于其选择性检测的探针组，以及（4）传播 可靠地审查样品和实验室准备协议，用于更广泛的研究 社区在实现这些目标的过程中，该网络将支持研究tau蛋白病的分子基础。 发病机制和催化努力创造新的诊断和治疗策略， 针对有毒的tau聚集体多晶型物。

PROJECT SUMMARY Tau aggregation is a shared pathology of Alzheimer's disease and related dementias known as tauopathies. Because each disorder develops a unique combination of aggregate polymorphisms and co-morbidities that may influence the course and severity of disease, elucidating the relationship between tau aggregate structure and biological activity has become a high priority in the field. Advances to date have been limited, however, by the lack of rigorously standardized aggregate preparations from each form of tauopathy and by the absence of tools needed to selectively detect their presence in biological models and clinical specimens. The proposed Interdisciplinary Research Network on Biologically Active Tau Aggregate Polymorphs seeks to address this need by (1) isolating a full range of biologically active tau aggregates from authentic Alzheimer's disease, Corticobasal Degeneration, Progressive Supranuclear Palsy, and Pick's disease brain tissue, (2) establishing their structures through biophysical analysis, (3) developing probe sets for their selective detection, and (4) disseminating reliably vetted samples and lab-ready protocols for their handling and storage to the broader research community. In accomplishing these goals, the network will support research into the molecular basis of tauopathy pathogenesis and catalyze efforts toward creating novel diagnostic and therapeutic strategies specifically tailored against toxic tau aggregate polymorphs.