Three-dimensional cellular microarray for high-throughput toxicology assays
| Autor: | R. Anand Kumar, Sumitra M. Sukumaran, Michael G. Hogg, Douglas S. Clark, Moo-Yeal Lee, Jonathan S. Dordick |
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| Rok vydání: | 2007 |
| Předmět: |
Microarray
Chemistry Pharmaceutical Biology Toxicology Inhibitory Concentration 50 Cytochrome P-450 Enzyme System Cytochrome P-450 CYP1A2 Cell Line Tumor Animals Cytochrome P-450 CYP3A Humans Technology Pharmaceutical Cytotoxicity Oligonucleotide Array Sequence Analysis chemistry.chemical_classification Multidisciplinary CYP3A4 Drug discovery Equipment Design Biological Sciences Rats Enzyme chemistry Cytochrome P-450 CYP2D6 Cell culture Pharmacogenetics Drug Design Toxicity Cellular microarray Collagen |
| Zdroj: | Proceedings of the National Academy of Sciences of the United States of America. 105(1) |
| ISSN: | 1091-6490 |
| Popis: | We have developed a miniaturized 3D cell-culture array (the Data Analysis Toxicology Assay Chip or DataChip) for high-throughput toxicity screening of drug candidates and their cytochrome P450-generated metabolites. The DataChip consists of human cells encapsulated in collagen or alginate gels (as small as 20 nl) arrayed on a functionalized glass slide for spatially addressable screening against multiple compounds. A single DataChip containing 1,080 individual cell cultures, used in conjunction with the complementary human P450-containing microarray (the Metabolizing Enzyme Toxicology Assay Chip or MetaChip), simultaneously provided IC50values for nine compounds and their metabolites from CYP1A2, CYP2D6, and CYP3A4 and a mixture of the three P450s designed to emulate the human liver. Similar responses were obtained with the DataChip and conventional 96-well plate assays, demonstrating that the near 2,000-fold miniaturization does not influence the cytotoxicity response. The DataChip may therefore enable toxicity analyses of drug candidates and their metabolites at throughputs compatible with the availability of compounds at early-stage drug discovery. |
| Databáze: | OpenAIRE |
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