ArticleMethods in molecular biology (Clifton, N.J.)2022
Measuring Glucose Consumption and Gluconeogenesis in 3D Human Tissue Cultures with Nanoliter Input Volumes.
Article in Methods in molecular biology (Clifton, N.J.), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Organotypic and microphysiological culture of primary human tissues and cancers has emerged as a powerful set of technologies that allow to faithfully mimic cellular metabolism and functions ex vivo. The predominant 3D culture methods include spheroids and microfluidic chips. These cultures use low cell numbers and culture volumes, which, however, poses important limitations for the available amounts of sample for downstream analyses. Here, we describe a detailed method for the measurement of glucose consumption dynamics in organotypic culture using a bienzymatic colorimetric assay that accurately quantifies glucose levels using nanoliter input volumes. As an example we utilize spheroids consisting of primary human hepatocytes. The assay has been carefully optimized and benchmarked and is compatible with both longitudinal and high-throughput screening in both static and perfused conditions. The method is straightforward and only requires a microplate reader capable of running absorbance kinetic measurements.
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