Automated digital high-precision, high-throughput tissue microarray (TMA) system

自动化数字高精度、高通量组织微阵列 (TMA) 系统

• 批准号: 508608399
• 金额: --
• 依托单位: Eberhard Karls Universität Tübingen
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2022
• 资助国家: 德国
• 起止时间: 2021-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/508608399?language=en
• 关键词: Automated; digital; precision; throughput; tissue

The large-scale device applied for here is a system consisting of various components, including a slide scanner for digitizing histological section preparations, a tissue microarray (TMA) punching machine for clamping 60 donor paraffin tissue blocks and 12 recipient paraffin blocks, as well as the associated computer software and hardware. This system is to be integrated into a new "Advanced Tissue Imaging & Digital Pathology" Core Facility to be established at the Institute of Pathology at the University Hospital of Tübingen, where it will be used as a central component. The slide scanner in this system will be required to digitize freshly cut hematoxylin and eosin (H&E)-stained tissue sections of the paraffin blocks. A high-resolution photograph of the cut surface of the paraffin block is then taken of each donor tissue block in the TMA puncher, which is automatically digitally aligned to the digitized, H&E-stained section. High-precision annotations are then made on the computer of the exact tissue regions to be integrated into the TMA. The TMA punching machine has different drill core sizes between 0.6 and 2.0 mm. Conventional, manual creation of TMAs, as is currently done at the Institute of Pathology with the device acquired in 2006, is unthinkable with this precision and does not have the necessary throughput to serve numerous projects. In addition, the automatic punching machine allows up to 12 duplicates of the TMA to be produced simultaneously (12 receiver blocks) for the preparation of numerous stains and, for example, for shipping in collaborations. The high-precision TMAs are necessary for advanced tissue imaging (highly multiplexed microscopy) to characterize biomarkers as well as to analyze cellular interactions in the tumor microenvironment. Currently, highly multiplexed microscopy does not allow for high throughput, making many tissues on a slide central to performing experiments and further analysis. The TMA puncher also has a PCR module that allows output of cores into sample vials for DNA/RNA extraction.Numerous studies are currently being planned and will be processed using the requested instrument, including studies on cutaneous T-cell lymphoma, gastroesophageal adenocarcinoma, peritoneal mesothelioma, colorectal carcinoma, malignant melanoma, glioblastoma, etc. In addition, the proposed device will be used in a central project of the Collaborative Research Center 1623 "ImmunoPersist" currently in application, in biobank service projects of the University Hospital Tübingen and for clinical studies / molecular tumor board.

这里应用的大型设备是由各种组件组成的系统，包括用于数字化组织切片制备的载玻片扫描仪，用于夹持60个供体石蜡组织块和12个受体石蜡组织块的组织微阵列（TMA）打孔机，以及相关的计算机软件和硬件。该系统将被整合到图宾根大学医院病理学研究所新建立的“高级组织成像和数字病理学”核心设施中，并将作为核心组件使用。该系统中的载玻片扫描仪将需要对石蜡块的新鲜切割的苏木精和伊红（H&E）染色的组织切片进行染色。然后在TMA打孔器中拍摄每个供体组织块的石蜡块切割表面的高分辨率照片，其自动与数字化的H& E染色切片数字化对齐。然后在计算机上对要整合到TMA中的确切组织区域进行高精度注释。TMA冲孔机具有0.6 mm至2.0 mm的不同钻芯尺寸。病理研究所目前使用2006年购买的设备进行传统的手动创建TMA，这种精度是不可想象的，并且没有必要的吞吐量来服务于众多项目。此外，自动冲孔机允许同时生产多达12个TMA副本（12个接收器块），用于制备多种染色剂，例如用于合作运输。高精度TMA对于先进的组织成像（高度多路复用显微镜）是必要的，以表征生物标志物以及分析肿瘤微环境中的细胞相互作用。目前，高度多重显微镜不允许高通量，使得载玻片上的许多组织对于执行实验和进一步分析至关重要。TMA打孔器还有一个PCR模块，可将核心输出到样品瓶中进行DNA/RNA提取。目前正在计划进行大量研究，并将使用所需仪器进行处理，包括皮肤T细胞淋巴瘤、胃食管腺癌、腹膜间皮瘤、结直肠癌、恶性黑色素瘤、胶质母细胞瘤等研究。此外，申报器械将用于目前正在申请的合作研究中心1623“ImmunoPersists”的中心项目、蒂宾根大学医院的生物库服务项目以及临床研究/分子肿瘤委员会。