UCLA IDDRC: Cells, Circuits and Systems Core

核心D：摘要 电池和电路核心的目的是为调查人员提供了解 智力和发育障碍(IDDS)的细胞和生理基础以及潜能的作用 碘缺乏病生物学治疗学。电生理评估对于理解细胞和 IDD模型和细胞培养中的电路改变是理解细胞和分子的重要工具 核心将由两个部分组成，即神经生理评估部分和 细胞和器官模型组件。在神经生理评估部分，我们将提供 蜂窝、电路和系统级别的功能评估。最先进的电生理学技术的应用 方法将帮助IDDRC调查人员发现和理解导致 正在研究的疾病。这些电生理学方法包括在脑片上进行的实验， 急性分离的神经元或培养物，提供对神经元、局部电路和 微电路主要是由细胞、小鼠或大鼠模型中的遗传变化引起的。新技术包括 光遗传学、脑电和活体局部场电位(LFP)记录，以及使用微型显微镜对神经元进行成像 自由行为啮齿动物的钙瞬变，以允许和促进发育神经的分析 在蜂窝、电路和系统级别运行。在细胞和器官建模组件中，我们将 利用人类多能干细胞、组织源性神经干细胞和 立体有机体培养。因为人类中枢神经系统细胞在本质上与 啮齿动物细胞，我们在2个周期前开发了繁殖和分布它们的设施和能力。在 在前一个周期中，我们极大地扩展了人类细胞核心，重点是多能干细胞来源的培养， 包括为人脑器官的研究奠定基础。我们将继续提供这些工具和 扩大我们向ID研究人员提供细胞和专业知识的能力，作为评估神经元活动的代理 在更多的行为学条件下。干细胞技术的使用提供了一种模拟疾病的新方法 以及开发基于人体细胞利用的基本疗法。核心将提供设施和 繁殖人类胚胎干细胞(HESCs)、诱导多能干细胞(HiPSCs)、神经干细胞的专业知识 干细胞、祖细胞和其他脑细胞类型，以创建和研究IDD的细胞模型。的一个主要功能 核心将协助研究人员培养和研究来源于hESCs和hiPSCs的脑器官。 除培训和服务职能外，核心将继续在#年开发新的方法。 生理评估和人体细胞培养与分析。核心的两个组件将相互作用 天衣无缝。核心将与国际发展研究中心的其他核心和研究项目定期互动 还将通过与分子筛查的互动来帮助研究人员发现和开发药物 博德干细胞研究中心和琼森综合癌症中心的资源共享。

CORE D: Abstract The purpose of The Cells and Circuits Core is to provide investigators with tools needed to understand the cellular and physiological basis of intellectual and developmental disabilities (IDDs) and the role of potential therapeutics in IDD biology. Electrophysiological assessment is a vital to the understanding of both cellular and circuit alterations in models of IDD and cell culture is a vital tool in the understanding of cellular and molecular basis of ID. The core will consist of two components, the Neurophysiological Assessment component and the Cellular and Organoid Modeling component. In the Neurophysiological Assessment component, we will provide functional assessments at the cellular, circuit and systems level. The use of state-of-the-art electrophysiological approaches will aid IDDRC investigators in uncovering and understanding basic mechanisms causing the disorders being studied. These electrophysiological approaches consist of experiments performed in brain slices, acutely isolated neurons or cultures providing functional analyses of changes in neurons, local circuits and microcircuits induced primarily by genetic alterations in cellular, mouse or rat models. New techniques include optogenetics, EEG and local field potential (LFP) recording in vivo, and the use of miniscopes to image neuronal calcium transients in freely-behaving rodents to permit and facilitate analyses of developmental neurological functions at the cellular, circuit, and systems levels. In the Cellular and Organoid Modeling component, we will develop and provide models of IDD using human pluripotent stem cells, tissue-derived neural stem cells, and three-dimensional organoid cultures. Because human central nervous system cells are inherently different from rodent cells, we developed the facilities and capabilities to propagate and distribute them 2 cycles ago. In the previous cycle, we expanded the human cell core greatly, with a focus on pluripotent stem cell-derived cultures, including building the basis for the study of human cerebral organoids. We continue to provide these tools and expand our ability to deliver cells and expertise to ID researchers serving as a proxy to estimate neuronal activity in more ethological conditions. The use of stem cell technology provides a novel approach to modeling disease and developing rationale therapies based on utilization of human cells. The Core will provide facilities and expertise to propagate human embryonic stem cells (hESCs), induced pluripotent stem cells (hiPSCs), neural stem and progenitor and other cerebral cell types to create and study cellular models of IDD. A major function of the Core will be to aid investigators in culturing and studying cerebral organoids derived from hESCs and hiPSCs. In addition to its training and service functions, the Core will continue to develop novel methodologies in physiological assessment and human cell culture and analysis. The two components of the Core will interact seamlessly. The Core will interact regularly with the other Cores of the IDDRC and with the Research Project and will also aid investigators in drug discovery and development through interactions with Molecular Screening Shared Resource in the Broad Stem Cell Research and Jonsson Comprehensive Cancer Centers.