ECIS-based High Throughput Screening Instrumentation

基于 ECIS 的高通量筛选仪器

• 批准号: 7539617
• 负责人: CHARLES R KEESE
• 金额: $ 42.83万
• 依托单位: APPLIED BIOPHYSICS, INC.
• 依托单位国家: 美国
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-02-04 至 2010-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7539617
• 关键词: Achievement; Behavior; Biological Assay; Biophysics; Cell physiology; Cells; Complex; Computer software; Cultured Cells; Custom; Cytoskeleton; Data; Data Files; Data Set; Development; Device or Instrument Development; Drug Industry; Electrodes; Electronics; Endothelial Cells; Evaluation; Frequencies; Goals; Grant; Individual; Laboratories; Libraries; Marketing; Measurement; Measures; Mechanics; Methods; Monitor; Numbers; Permeability; Pharmaceutical Preparations; Phase; Production; Property; Reading; Research; Robotics; Running; Screening procedure; Site; Source; Spectrum Analysis; Speed; Standards of Weights and Measures; System; Techniques; Technology; Testing; Therapeutic; Time; Wound Healing; Writing; base; cell behavior; cell motility; cost; data acquisition; design; electric impedance; high throughput screening; insight; instrument; instrumentation; migration; monolayer; prototype; solid state; success; voltage; wound

DESCRIPTION (provided by applicant): The long-term objective of the research is to develop and fabricate an instrument that can facilitate the discovery of new drugs via high throughput screening (HTS). ECIS (electric cell-substrate impedance sensing) is a technology developed by Applied BioPhysics to study the behavior of cultured cells in real time. Instruments manufactured by the company currently find use in over 150 laboratories world wide to measure such fundamental cell properties as permeability of cell monolayers, cell migration and cell-extra cellular matrix interactions. The ECIS instrumentation had been limited to low throughput research endeavors where a maximum of 16 individual cell cultures could be monitored. Phase I research culminated in the development and fabrication of the first 96 well version of ECIS. This instrument is limited to measurements of simple impedance and has a throughput restricted to a single 96 well plate. In spite of these limitations, the ECIS 9600 instrument is now being successfully marketed primarily to academic laboratories. The objective of the Phase II research is to build upon the success of Phase I and create a truly high throughput ECIS system. The new instrument will be capable of monitoring the complex impedance of ECIS culture wells over a broad spectrum of AC frequencies. Custom electronics will accommodate rapid data acquisition of large numbers of 96 well plates permitting thousands of individual wells to be screened. The instrument will capitalize upon the power of monitoring complex impedance and will be tailored for two important cell-based assays. One of these assays will involve measurement of cell migration based on an automated ECIS-based wound-healing assay. The other will monitor changes in barrier function of cell layers. None of these important measurements can presently be accomplished in a high throughput assay. The achievement of these goals will involve several steps: "development and testing the necessary electronics," design and testing of affordable consumable arrays specifically tailored for each assay, "production of custom software to run assays and manage the large resulting data files, "interfacing the ECIS instrumentation with standard robotic plate handlers. Once a complete prototype instrument has been fabricated, we will establish two beta test sites where the instrumentation and its software will be thoroughly evaluated and changes implemented to yield the final production unit. In Phase III, the instrument will be used in HTS assays in the pharmaceutical industry, where literally tens of thousands of test compounds will be evaluated in the search for modern therapeutic drugs.

描述（由申请人提供）：该研究的长期目标是开发和制造一种可以通过高通量筛选（HTS）促进新药发现的仪器。ECIS （electro - cell-substrate impedance sensing）是应用生物物理学开发的一种实时研究培养细胞行为的技术。该公司生产的仪器目前在全球150多个实验室中使用，用于测量细胞单层通透性，细胞迁移和细胞-细胞外基质相互作用等基本细胞特性。ECIS仪器仅限于低通量研究，最多可监测16个单个细胞培养物。第一阶段的研究最终完成了首批96口ECIS的开发和制造。该仪器仅限于测量简单的阻抗，其吞吐量仅限于单个96孔板。尽管有这些限制，ECIS 9600仪器现在主要成功地销售给学术实验室。第二阶段研究的目标是在第一阶段成功的基础上，创造一个真正高通量的ECIS系统。新仪器将能够在广泛的交流频率范围内监测ECIS培养井的复杂阻抗。定制电子设备将适应96个孔板的大量快速数据采集，允许筛选数千个单独的井。该仪器将利用监测复杂阻抗的能力，并将为两个重要的基于细胞的分析量身定制。其中一项检测将涉及基于自动ecis的伤口愈合检测的细胞迁移测量。另一个将监测细胞层屏障功能的变化。这些重要的测量目前都不能在高通量分析中完成。实现这些目标将涉及几个步骤：“开发和测试必要的电子设备”，设计和测试为每个分析量身定制的可负担得起的消耗性阵列，“生产用于运行分析和管理大型结果数据文件的定制软件”，将ECIS仪器与标准机器人板处理器连接起来。一旦一个完整的原型仪器被制造出来，我们将建立两个测试站点，在那里仪器及其软件将被彻底评估和实施更改，以产生最终的生产单元。在第三阶段，该仪器将用于制药行业的HTS分析，在寻找现代治疗药物的过程中，将对成千上万的测试化合物进行评估。