Recent Patents on Biotechnology

Nikolaos Labrou
Laboratory of Enzyme Technology, Department of Biotechnology
Agricultural University of Athens Iera Odos 75, Gr-118 55
Athens
Greece

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Three-Dimensional Tissue Models for Drug Discovery and Toxicology

Author(s): Francesco Pampaloni, Ernst H. K. Stelzer, Andrea Masotti.

Abstract:

Launching a new drug on the market is an extremely time-consuming and expensive process. The total costs from the lab bench to the patients bedside are in the range of $800 million for each new compound. Innovative preclinical assays are urgently needed to select the most promising drug candidates. High-throughput molecular screening does not provide information on the effects on cellular functions. Testing on animals is expensive, ethically controversial, and poorly predictive of the response in humans. Conventional two-dimensional (2D) cellular assays do not accurately reflect the drug response in vivo. To overcome these limitations, biotechnologists are developing three-dimensional (3D) cultures. 3D cultures provide more accurate compound screening and can eliminate toxic and ineffective substances at an early stage. Moreover, 3D cultures can accomplish the 3R agenda (refinement, reduction, and replacement) for the replacement of toxicity testing on animals. We provide an up-to-date overview on the patents in the field.

Keywords: 3D cell culture, extracellular matrix, ECM, cellular spheroid, microcarrier culture, microfluidic culture, organotypic culture, drug discovery, toxicity screening, 3R agenda

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Article Details

VOLUME: 3
ISSUE: 2
Year: 2009
Page: [103 - 117]
Pages: 15
DOI: 10.2174/187220809788700201
Price: $100