Ros Visualization
Ros Visualization - Related Videos
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.
03:50
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.
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.
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.
09:25
ROS Live Cell Imaging During Neuronal Development
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Cited by 9 •
2021
This protocol describes the use of a genetically encoded hydrogen peroxide (H2O2)-biosensor in cultured zebrafish neurons and larvae for assessing the physiological signaling roles of H2O2 during nervous system development. It can be applied to different cell types and modified with experimental treatments to study reactive oxygen species (ROS) in general development.
FAQs
The signal changes when a probe is oxidized or changes conformation. Fluorescent dyes and genetically encoded sensors translate that chemical or structural response into altered fluorescence intensity or localization, allowing imaging systems to connect a redox event with a visible readout. This mechanism supports examination of ROS dynamics in living cells and tissues rather than relying only on a bulk measurement.
Fluorescence intensity and localization provide complementary information. A change in intensity can indicate that the probe has responded to ROS, whereas localization shows where the signal appears within a cell or tissue. Considering both features helps researchers distinguish a spatially concentrated redox event from a broader change, which is important when interpreting signaling, metabolism, or oxidative stress.
Probe choice depends on the information the experiment needs. Fluorescent dyes offer one probe-based route, while genetically encoded sensors provide another way to produce fluorescence changes in biological systems. Because both can report oxidation or conformational responses, researchers can select the format that best supports imaging in living cells or tissues and the spatial readout required.
Timing helps connect ROS accumulation with changing cellular processes. Because imaging can show when a signal appears as well as where it occurs, researchers can examine redox events in relation to signaling, metabolism, host defense, or disease-related damage. This temporal perspective can clarify whether ROS-associated changes accompany a biological response and how that response develops.
A typical workflow selects a fluorescent dye, genetically encoded sensor, or microscopy-based probe suited to the biological system, then records its fluorescence response. Researchers examine changes in intensity or localization to map ROS-associated signals across living cells or tissues. The resulting images provide spatial information that can be interpreted alongside studies of cellular function and redox processes.
Quantitative imaging converts fluorescence changes into measurements that can be compared across biological conditions. Researchers can track alterations in signal intensity or distribution to evaluate whether antioxidant responses coincide with reduced or redistributed ROS-associated signals. This approach connects visual observations with measurable outcomes, helping assess how redox regulation influences cellular function during oxidative stress.
ROS visualization supports investigations of cell signaling, metabolism, host defense, and disease-related damage. In biology, the technique can also connect ROS location and timing with changes in living cells and tissues. By mapping species such as hydrogen peroxide and examining antioxidant responses, researchers gain context for understanding how redox processes contribute to normal or impaired cellular function.