Calcium Propagation
Calcium Propagation - Related Videos
10:46
Mechanical Stimulation-induced Calcium Wave Propagation in Cell Monolayers: The Example of Bovine Corneal Endothelial Cells
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Cited by 25 •
2013
Intercellular Ca2+-waves are driven by gap junction channels and hemichannels. Here, we describe a method to measure intercellular Ca2+-waves in cell monolayers in response to a local single-cell mechanical stimulus and its application to investigate the properties and regulation of gap junction channels and hemichannels.
03:39
In Vivo Calcium Imaging Using Synaptically Localized Calcium Sensors in Drosophila melanogaster
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2025
This video demonstrates a method for in vivo calcium imaging using synaptically localized calcium sensors in flies. It outlines the steps for preparing the flies for microscopy, conducting olfactory conditioning, and visualizing odor-induced calcium influx.
08:43
Calcium Imaging in Neurons
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2023
Calcium ions play an integral role in neuron function: They act as intracellular signals that can elicit responses such as altered gene expression and neurotransmitter release from synaptic vesicles. Within the cell, calcium concentration is highly dynamic due to the presence of pumps that selectively transport these ions in response to a variety of signals. Calcium imaging takes advantage of intracellular calcium flux to directly visualize calcium signaling in living neurons.This video begins...
07:45
Imaging Calcium in Drosophila at Egg Activation
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Cited by 6 •
2016
This article describes an adaptable ex vivo protocol for visualizing Ca2+ during egg activation in Drosophila.
01:07
Propagation of Waves
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2023
When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free. Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
FAQs
Calcium propagation can begin when calcium enters through membrane channels or is released from intracellular stores such as the endoplasmic reticulum. The resulting signal may spread through diffusion or activate additional release through calcium-induced calcium release. These linked routes provide feedback that can extend and coordinate signaling across a cell or connected tissue.
Diffusion distributes calcium away from its initial entry or release site, while calcium-induced calcium release amplifies the signal by triggering further calcium release from intracellular stores. Together, these processes can produce broader spatial and temporal signaling than either mechanism alone. Their interaction helps explain how local calcium events become coordinated responses in engineered biological systems.
Three informative measurements are propagation speed, signal amplitude, and spatial range. Speed describes how rapidly the signal spreads, amplitude indicates the strength of the calcium response, and spatial range shows how far the response extends. Comparing these properties helps researchers evaluate signaling networks and determine whether an engineered tissue reproduces coordinated cellular behavior.
A basic analysis follows calcium signals across space and time within the engineered system, then quantifies how quickly and how far they spread and how strong they become. Applying this approach to engineered tissues or organ-on-a-chip platforms connects measured signal behavior with cell communication, excitation, contraction, or mechanotransduction.
Calcium propagation is useful when researchers need to study coordinated biological responses or design systems that respond to cellular signaling. The overview identifies applications in biosensors, therapeutic tissues, and biomimetic materials. Measuring propagation characteristics can help connect the behavior of these systems to the signaling networks they are intended to detect, support, or reproduce.
In bioengineering, calcium propagation provides a way to examine how cells communicate and coordinate responses associated with excitation, contraction, and mechanotransduction. Tracking the signal across engineered tissues or connected cell systems shows whether calcium activity remains local or becomes spatially coordinated. This information supports analysis of tissue function and the design of biomimetic systems.