U2 Os Cells
U2 Os Cells - Related Videos
06:01
An Electroporation Cytometry Protocol for Live-Cell, Fluorescence Microscopy Using U2 OS Cell Culture
0 Views •
2025
Electroporation is the use of pulsed electric fields (PEFs) to create transient pores in cell cultures to introduce molecular cargo. This technique has recently become widely used in research and clinical settings. Here, we describe electroporation techniques using the recently developed "Electroporation Cytometry System" for performing live-cell, fluorescence microscopy.
13:38
Monitoring Kinase and Phosphatase Activities Through the Cell Cycle by Ratiometric FRET
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Cited by 21 •
2012
FRET-based reporters are increasingly used to monitor kinase and phosphatase activities in live cells. Here we describe a method on how to use FRET-based reporters to assess cell cycle-dependent changes in target phosphorylation.
11:22
Measuring the Kinetics of mRNA Transcription in Single Living Cells
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Cited by 6 •
2011
RNA polymerase II transcriptional kinetics are measured on specific genes in living cells. mRNAs transcribed from the gene of interest are fluorescently tagged and using Fluorescence Recovery After Photobleaching (FRAP) the in vivo kinetics of transcriptional elongation are obtained.
14:53
Analysis of Global RNA Synthesis at the Single Cell Level following Hypoxia
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Cited by 2 •
2014
We describe a technique for analysis of global RNA synthesis in hypoxia using imaging. Click-chemistry labeling of RNA has not previously been performed under hypoxia and allows visualization of global RNA changes at the single cell level. This approach complements the existing averaged RNA techniques, allowing direct visualization of cell-to-cell changes in global RNA synthesis.
10:38
Monitoring Cell-autonomous Circadian Clock Rhythms of Gene Expression Using Luciferase Bioluminescence Reporters
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Cited by 78 •
2012
Circadian clocks function within individual cells, i.e., they are cell-autonomous. Here, we describe methods for generating cell-autonomous clock models using non-invasive, luciferase-based real-time bioluminescence technology. Reporter cells provide tractable, functional model systems for studying circadian biology.
FAQs
Controlled nutrient availability, temperature, and gas conditions help maintain reproducible growth in U2OS cell cultures. This consistency allows researchers to attribute measured changes more confidently to an experimental treatment rather than uncontrolled environmental variation. Maintaining comparable culture conditions is therefore important when evaluating proliferation, DNA damage responses, cell-cycle progression, or gene expression across experiments.
Because U2OS cells grow attached to a culture surface, their organization and growth can be examined directly with microscopy. This adherent format also supports experimental manipulation followed by visual or molecular analysis. As a result, investigators can connect changes in cellular structure with treatment-associated effects on proliferation or other measured biological processes.
Treatment studies can compare changes in DNA damage responses, cell-cycle progression, and gene expression, while also examining cellular structure and proliferation. These readouts provide complementary views of how a treatment affects the cells. Using several measurements together can help researchers relate visible cellular changes to molecular or growth-related outcomes rather than relying on a single result.
A typical workflow begins by growing the adherent cells under controlled nutrient, temperature, and gas conditions. Researchers then apply an experimental treatment or other manipulation and measure the resulting changes using microscopy, transfection-compatible procedures, or molecular assays. The selected readout depends on whether the study focuses on structure, proliferation, DNA damage, cell-cycle behavior, or gene expression.
U2OS cells are useful when researchers need a reproducible culture system for testing questions in cancer biology, cell signaling, genome maintenance, or drug evaluation. Their compatibility with controlled treatments and multiple assay types supports comparisons among experimental conditions. Findings can guide hypothesis testing before investigators examine the same question in more complex biological models.
Results from U2OS cells should not automatically be treated as complete representations of normal bone or tumor tissue. The model offers a standardized way to test cellular responses, but it does not capture every feature of a more complex biological environment. Researchers therefore use its findings as an experimental step before validation in systems that better reflect tissue complexity.