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. 2013 Jan;18(1):54-66.
doi: 10.1177/1087057112456874. Epub 2012 Aug 24.

Translation of a Tumor Microenvironment Mimicking 3D Tumor Growth Co-Culture Assay Platform to High-Content Screening

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Translation of a Tumor Microenvironment Mimicking 3D Tumor Growth Co-Culture Assay Platform to High-Content Screening

Eberhard Krausz et al. J Biomol Screen. .

Abstract

For drug discovery, cell-based assays are becoming increasingly complex to mimic more realistically the nature of biological processes and their diversifications in diseases. Multicellular co-cultures embedded in a three-dimensional (3D) matrix have been explored in oncology to more closely approximate the physiology of the human tumor microenvironment. High-content analysis is the ideal technology to characterize these complex biological systems, although running such complex assays at higher throughput is a major endeavor. Here, we report on adapting a 3D tumor co-culture growth assay to automated microscopy, and we compare various imaging platforms (confocal vs. nonconfocal) with correlating automated image analysis solutions to identify optimal conditions and settings for future larger scaled screening campaigns. The optimized protocol has been validated in repeated runs where established anticancer drugs have been evaluated for performance in this innovative assay.

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