Rapid, Label-free, Direct Cell Counting in Measurement of Cell Proliferation for Compound Screening

18 Jan 2013

Cell proliferation is one of the most widely used assay types across a broad range of biological disciplines. Due to their sensitive nature, cell proliferation assays are commonly used to measure cytotoxicity and/or efficacy of drug candidates in oncology, immunology, and stem cells, among other fields. This application note demonstrates the use of the Celigo cytometer from Brooks Life Science Systems in a label-free, cell-based screening assay to directly monitor cell proliferation. The Celigo cytometer produced similar results to MTT assays, but with several advantages, such as image archiving and kinetic growth data.

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Flow Cytometry / Cell CountingFlow cytometers are used to count, sort and examine multiple characteristics of cells. Other cell analysis equipment includes image cytometers, cell counters, fluorescence-activated cell sorters (FACS), magnetic-activated cell sorters (MACS), and a range of flow cytometry assay kits. Flow cytometers can reveal information on cell viability, cell proliferation, apoptosis and cell cycle progression, as well as identify cell populations and intracellular or cell-surface molecules. Additionally, some flow cytometers, known as FACS, have an additional sorting function after analysis. Cell counters and image cytometers count live and dead cell populations and can also conduct cell proliferation assays. Find the best flow cytometers, cell counters and cell sorters in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Cell-Based AssaysCell-based assays are used to monitor the presence, quantity and activities of a desired cellular analyte including drug molecules or biomarkers. This can reveal information on cell health (apoptosis, cytotoxicity, viability and proliferation assays), cell metabolism, cell migration and cell signaling mechanisms. Find the best cell-based assay products, kits and equipment with our peer reviewed product directory: compare products, check customer reviews and receiving pricing direct from manufacturers.Light MicroscopyLight microscopes or optical microscopes are used to visualize microscale objects under magnification, including cells, clinical specimens and materials. Lab equipment for light microscopy includes confocal microscopes, fluorescence microscopes, zoom and stereo microscopes. Microscope slides and imaging reagents are available for visualizing samples, as well as various microscope stages and incubators for large or temperature-sensitive samples. Find the best light microscopes in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.CytotoxicityCytotoxicity assays measure the toxic effects of substances on cells, often used in drug testing and environmental studies. These tests are crucial in determining the safety of chemicals and pharmaceutical compounds. Explore cytotoxicity testing tools in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.Drug DevelopmentDrug development refers to the process of bringing a new drug to market.CytometryCytometry is a broad term for the quantitative analysis of cells and cell systems. The most popular methods to study cytometry are flow cytometry and image cytometry.ImagingImaging techniques are essential for obtaining visual representations of samples to understand structures, processes, and function in biological, chemical, and physical research. These tools range from traditional light microscopy to advanced imaging modalities like MRI and electron microscopy, providing researchers with valuable data for diagnostics, drug discovery, and material analysis. Explore imaging solutions in our peer-reviewed product directory to compare products, check reviews, and get pricing directly from manufacturers.Live Cell ImagingLive cell imaging is the study of living cells using microscopes and high-content imaging systems. This technique provides in-depth insight into fast and complex biological processes, by allowing dynamic imaging of living cells instead of acquiring an individual image at a single point in time.Cell ProliferationCell proliferation refers to the process by which cells divide and multiply. This is a key concept in cancer research, tissue regeneration, and immunology studies. Explore cell proliferation tools in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.Label-Free AnalysisCompound ScreeningCompound screening is a method used to discover specific compounds that could be promising candidates for pharmaceutical use. This potential is identified when compounds interact with the target protein during screening and could therefore be carried forward in the drug development process.Fluorescence Based AssayFluorescence based assays are widely used in life science research and high-throughput screening to measure a broad range of cellular activities.