Intracellular Ros Detection
Intracellular Ros Detection - Related Videos
03:50
ROS Detection with DCFH-DA Staining: Measuring Total ROS in Colorectal Cancer Cell Lines
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2023
This video describes the protocol for detecting total cellular reactive oxygen species (ROS) using 2',7'-dichlorodihydrofluorescein diacetate (DCFH-DA). This method helps visualize ROS localization in the adherent cells using a fluorescence microscope and further quantify ROS intensity with a fluorescence plate reader.
07:17
Production and Detection of Reactive Oxygen Species (ROS) in Cancers
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Cited by 278 •
2011
Here we propose simple methods to test and evaluate the presence of reactive oxygen species in cells.
07:33
Visualization of Vascular Ca2+ Signaling Triggered by Paracrine Derived ROS
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Cited by 10 •
2011
An efficient method to gain insights into visualizing the paracrine-derived ROS induction of endothelial Ca2+ signaling is described. This method takes advantage of measuring paracrine derived ROS triggered Ca2+ mobilization in vascular endothelial cells in a co-culture model.
03:47
Determination of ROS Production by Neutrophils upon Interaction with Opsonized Biofilm
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2025
In this video, we demonstrate an in vitro chemiluminescence assay to detect the generation of reactive oxygen species by neutrophils upon exposure to an opsonized bacterial biofilm.
08:14
Detection of Intracellular Gene Expression in Live Cells of Murine, Human and Porcine Origin Using Fluorescence-labeled Nanoparticles
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Cited by 1 •
2015
This manuscript describes a novel technique which allows the detection of intracellular gene expression after endocytosis of fluorescence-labeled nanoparticles directly in live cells. The method does not require manipulation of the cells and is not restricted with respect to the target gene or species.
FAQs
Probe choice determines which ROS-related signal an experiment can reveal. Cell-permeable fluorescent probes enter living cells and undergo chemical oxidation that changes their fluorescence, but the response is not universal across probes. Selecting a probe therefore requires matching its ROS sensitivity to the biological question, rather than treating every fluorescence increase as a measurement of the same species.
Cellular conditions can alter the meaning of a fluorescence signal because ROS measurements reflect the surrounding redox balance. The same observed change may relate to oxidative stress or signaling-related redox changes, depending on biological context. Interpretation should therefore connect fluorescence patterns with the developmental process being studied instead of assigning a single outcome from intensity alone.
Microscopy and flow cytometry provide complementary ways to analyze probe-associated fluorescence. Microscopy is particularly relevant when researchers need to examine where ROS-related signals occur within developing cells or tissues. Flow cytometry offers another route for analyzing fluorescence from living-cell measurements. The appropriate choice depends on whether spatial organization or fluorescence analysis across cells is central to the experiment.
Careful controls are essential because fluorescent responses depend on both probe behavior and cellular conditions. Experiments should account for the selected probe's distinct ROS response and the redox context of the cells. These controls help researchers distinguish a biologically meaningful change from a signal caused by inappropriate probe selection or an altered cellular state.
A basic workflow begins by selecting a cell-permeable fluorescent probe that matches the ROS-related question. Researchers then measure the probe-dependent fluorescence in living cells and analyze the signal by microscopy or flow cytometry. Including appropriate controls and considering cellular conditions during interpretation are necessary for relating the measurement to redox balance, oxidative stress, or signaling.
Developmental biologists use intracellular ROS measurements to relate changing ROS patterns to biological events such as cell proliferation, differentiation, migration, and tissue formation. Spatial and temporal fluorescence patterns can help reveal when and where redox-related changes accompany development. The resulting interpretation is strongest when probe selection and controls are aligned with the specific developmental process under investigation.