Medium-throughput Screening
Medium-throughput Screening - Related Videos
09:44
High-throughput Screening for Chemical Modulators of Post-transcriptionally Regulated Genes
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2015
Here we describe a cell-based reporter gene assay as a valuable tool to screen chemical libraries for compounds modulating post-transcriptional control mechanisms exerted through 3’ UTR.
03:48
Small Molecule Nematicides Screening Assay: A Medium Throughput Method to Screen Potential Nematicides Against Ditylenchus dipsaci
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2025
In this video, we demonstrate a screening assay to identify the efficacy of small-molecule nematicides against nematodes. Nematicides are considered effective if they cause a decrease in the number of mobile nematodes in the sample after exposure.
07:26
Cell-based Calcium Assay for Medium to High Throughput Screening of TRP Channel Functions using FlexStation 3
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Cited by 32 •
2011
This video provides a detailed protocol for studying the pharmacological profile of human TRPA1 channels using FlexStation 3. The protocol covers details of cell preparation, dye loading and operation of the microplate reader, FlexStation 3.
08:10
Multi-enzyme Screening Using a High-throughput Genetic Enzyme Screening System
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Cited by 7 •
2016
This work presents a method of high-throughput screening using a universal genetic enzyme screening system that can be theoretically applied to over 200 enzymes. Here, the single screening system identifies three different enzymes (lipase, cellulase, and alkaline phosphatase) by simply changing the substrate used (p-nitrophenyl acetate, p-nitrophenyl-β-D-cellobioside, and phenyl phosphate).
08:12
High-throughput Screening for Protein-based Inheritance in S. cerevisiae
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Cited by 2 •
2017
This protocol describes a high-throughput methodology to functionally screen for protein-based inheritance in S. cerevisiae.
FAQs
Reliable results depend on pairing a defined biological readout with appropriate controls. A viability assay asks whether a treatment changes cell survival, whereas immune activation, pathogen growth, or molecular interaction assays address different outcomes. Controls provide the comparison needed to judge whether an observed signal reflects the tested condition rather than normal assay behavior.
The main tradeoff concerns scale, flexibility, cost, and experimental control. Compared with individual testing, multiwell formats and repeatable handling allow more conditions to be evaluated efficiently. Compared with fully automated high-throughput workflows, the approach retains greater flexibility for adapting assays or examining follow-up conditions, making it useful when standardized testing is needed without maximum automation.
Standardization helps make results comparable across the moderate number of compounds, samples, or conditions being tested. Repeatable liquid-handling or manual procedures reduce variation introduced during sample application, while a consistent assay format supports clearer interpretation of the measured readout. This consistency is especially important when screening results must guide later characterization or follow-up studies.
A typical workflow begins by selecting a defined assay and arranging compounds, samples, or biological conditions in a multiwell plate. Researchers then apply the test material through repeatable liquid-handling or manual procedures, include appropriate controls, and measure the chosen readout. The resulting signals can be compared across wells to identify conditions associated with the desired biological response.
The core setup uses multiwell plates, the biological samples or compounds under evaluation, a standardized assay, and a way to apply conditions consistently. Depending on the laboratory workflow, researchers may use repeatable liquid-handling equipment or manual procedures. A measurement system is also needed to capture defined outputs such as viability, immune activation, pathogen growth, or molecular interactions.
This approach supports several early-stage and follow-up questions. Researchers can evaluate antimicrobial candidates, examine host-pathogen responses, or test compounds intended to modify immune activity. Because the method balances scale with experimental control, it can help compare multiple conditions while preserving the flexibility needed to investigate specific biological responses in immunology and infection studies.
Screening can reveal conditions associated with changes in cell viability, immune activation, pathogen growth, or molecular interactions. These measurements help identify promising antimicrobial candidates and characterize responses involving hosts and pathogens. The results also provide a basis for selecting conditions for follow-up studies, where researchers can examine selected findings in greater experimental detail.