Label-Free Cell-Based Functional Assays

Author(s): Lisa K. Minor

Journal Name: Combinatorial Chemistry & High Throughput Screening
Accelerated Technologies for Biotechnology, Bioassays, Medicinal Chemistry and Natural Products Research

Volume 11 , Issue 7 , 2008

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Label-free technologies based on electrical impedance or refractive index are new tools for measuring a cellbased functional response. Although the technologies are relatively new to high throughput screening cell-based applications, they are rapidly generating interest in that they are able to measure a phenotypic response using cells natively expressing the target protein without using dyes or cellular extracts. In addition, one can measure the cellular response using a kinetic mode resulting in an assay potentially rich in content. This article will describe these technologies and their applications in measuring cell proliferation, cell attachment and spreading, cell apoptosis and their application for several receptor target classes, including receptor tyrosine kinases and G protein-coupled receptors. The potential utility and drawbacks of these tools for high throughput screening, directed screening and compound profiling will also be discussed.

Keywords: refractive index, Label-free technologies, cellular extracts, cell proliferation, cell apoptosis, receptor tyrosine kinases, G protein-coupled receptors

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Article Details

Year: 2008
Page: [573 - 580]
Pages: 8
DOI: 10.2174/138620708785204072
Price: $65

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PDF: 13