Paracrine Ros
Paracrine Ros - 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.
01:32
Paracrine Signaling
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2021
Paracrine signaling allows cells to communicate with their immediate neighbors via secretion of signaling molecules. Such a signal can only trigger a response in nearby target cells because the signal molecules degrade quickly or are inactivated if not taken up. Prominent examples of paracrine signaling include nitric oxide signaling in blood vessels, synaptic signaling of neurons, the blood clotting system, tissue repair/wound healing, and local allergic skin reactions.Nitric oxide as a...
01:32
Paracrine Signaling
0 Views •
2026
Paracrine signaling allows cells to communicate with their immediate neighbors via secretion of signaling molecules. Such a signal can only trigger a response in nearby target cells because the signal molecules degrade quickly or are inactivated if not taken up. Prominent examples of paracrine signaling include nitric oxide signaling in blood vessels, synaptic signaling of neurons, the blood clotting system, tissue repair/wound healing, and local allergic skin reactions.Nitric oxide as a...
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.
FAQs
Hydrogen peroxide can carry a redox signal from a producing cell to nearby cells by moving through extracellular space or crossing membranes. In recipient cells, it can reversibly modify redox-sensitive proteins, allowing a localized oxidative event to influence signaling beyond its original site. This mechanism links production in one cell with responses in surrounding tissue.
Aquaporin channels can facilitate movement of hydrogen peroxide across cell membranes. Their role matters because membrane passage gives the signal a route into recipient cells, where redox-sensitive proteins can be modified reversibly. This provides a mechanistic connection between extracellular hydrogen peroxide and intracellular signaling changes, helping explain how an oxidative event in one cell can affect neighboring-cell behavior.
Reversibility allows redox-sensitive proteins to change their activity without implying permanent chemical damage. In paracrine ROS signaling, this property supports regulated communication between cells through hydrogen peroxide and related oxidative events. Such changes can influence pathways associated with inflammation, tissue repair, vascular responses, and cellular stress adaptation while preserving the signaling system's ability to adjust.
The effect is not limited to the initial production site because hydrogen peroxide can move through extracellular space or aquaporin channels and then modify proteins in recipient cells. Those reversible protein changes can alter signaling pathways, allowing one localized event to participate in coordinated responses such as repair, inflammation, or vascular regulation across surrounding tissue.
Paracrine ROS is relevant when a biological response must be coordinated across neighboring cells. The source material connects it with inflammation, tissue repair, vascular responses, and cellular stress adaptation. These settings illustrate how a redox signal generated locally can influence surrounding tissue behavior rather than remaining limited to the producing cell.
Researchers can use paracrine ROS as a framework for examining how localized oxidative events propagate through tissue. Attention centers on hydrogen peroxide movement, aquaporin-mediated membrane passage, reversible protein modification, and resulting signaling changes in recipient cells. This approach connects molecular redox communication with broader outcomes in surrounding cells.
Because paracrine ROS can transmit effects from a localized oxidative event to surrounding cells, it offers a way to investigate how redox communication contributes to disease progression. The same framework may help explain therapeutic response by linking treatment-associated local oxidative changes with signaling alterations in neighboring cells.