Cell Culture Assay
Cell Culture Assay - Related Videos
12:03
Viability Assays for Cells in Culture
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Cited by 39 •
2014
Therapeutic compounds are often first examined in vitro with viability assays. Blind cell counts by a human observer can be highly sensitive to small changes in cell number but do not assess function. Computerized viability assays, as described here, can assess both structure and function in an objective manner.
11:03
Massively Parallel Reporter Assays in Cultured Mammalian Cells
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Cited by 63 •
2014
The genetic reporter assay is a well-established and powerful tool for dissecting the relationship between DNA sequences and their gene regulatory activities. Coupling candidate regulatory elements to reporter genes that carry identifying sequence tags enables massive parallelization of these assays.
11:54
Establishing Embryonic Mouse Neural Stem Cell Culture Using the Neurosphere Assay
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Cited by 112 •
2011
This video protocol demonstrates the application of the neurosphere assay for the isolation and expansion of neural stem cells from the ganglionic eminences of embryonic day 14-mouse brain.
04:25
Substrate Oxidation Assay in Cultured Cells: An In Vitro Assay to Quantify Substrate Oxidation in Cells by Measuring Radioactive Signals from Trapped CO2
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2025
This video demonstrates a quantification technique for CO2 released during substrate oxidation using 14C-radiolabeled substrates. The released 14CO2 is trapped in an alkaline solution and quantified by a scintillation counter. The oxidation of different substrates varies between tissues and reflects the pathophysiological condition of the tissue.
07:23
Detection of Infectious Virus from Field-collected Mosquitoes by Vero Cell Culture Assay
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Cited by 19 •
2011
We describe a method to process and screen field-collected mosquitoes for a diversity of viruses by Vero cell culture assay. By employing this technique, we have detected 9 different viruses from 4 taxonomic families in mosquitoes collected in Connecticut.
FAQs
The assay establishes a controlled sequence: living cells receive an antigen, microbial component, infectious agent, or test compound, and researchers then measure a defined biological response. Comparing the observed response with the exposure helps relate the stimulus to changes in cell viability, cytokine production, antibody activity, or pathogen replication. This creates a focused model for examining host or immune-cell behavior.
Interpretation depends on whether the cultured cells represent immune cells, host cells, or another relevant cellular system, as well as whether they encounter antigens, microbial components, infectious agents, or compounds. Each combination addresses a different biological question. Immune-cell exposure may emphasize cytokine or antibody-related activity, whereas host-cell exposure can support analysis of viability or pathogen replication.
Different measurements capture different consequences of exposure. Cell viability indicates whether the treatment or infectious condition affects cell survival, while cytokine production reflects a measurable immune response. Antibody activity provides information about antibody-mediated effects, and pathogen replication indicates how successfully an infectious agent reproduces in the cultured system. Selecting the readout determines which aspect of the response is evaluated.
The measured outcome provides the distinction. A result involving pathogen replication can inform evaluation of antimicrobial activity, whereas altered cytokine production or antibody activity can indicate an immunomodulatory response. Cell viability adds another essential perspective because a change in the measured outcome may occur alongside effects on the cells themselves. Using these readouts together supports more precise interpretation of compound activity.
A typical workflow begins by maintaining living cells under controlled conditions, followed by exposing them to the selected antigen, microbial component, infectious agent, or compound. Researchers then quantify a relevant outcome, such as viability, cytokine production, antibody activity, or pathogen replication. The resulting measurements are interpreted in relation to the original exposure and the biological question being investigated.
Researchers choose cultured-cell assays when they need a controlled model for examining interactions between host cells and infectious agents. The system allows exposure conditions and measured outcomes to be linked within a defined experimental setting. It can help investigate pathogen replication, cellular responses, and disease mechanisms, while also supporting evaluation of antimicrobial or immunomodulatory compounds relevant to infection research.
Results can clarify how cells respond to antigens, microbial components, infectious agents, or candidate compounds. In vaccine research, measurements may help characterize immune-related responses; in diagnostics, they can contribute to understanding measurable biological activity; and in therapeutic research, they support assessment of antimicrobial or immunomodulatory effects. These findings can guide development of vaccines, diagnostics, and treatments by connecting experimental exposure with quantifiable outcomes.