Vesicle Motility
Vesicle Motility - Related Videos
03:45
Visualization of Vesicle Motilities in Neurons Using Fluorescence Imaging
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2025
This video demonstrates how neuronal vesicles are labeled with specific fluorescent proteins to visualize their movement. First, a plasmid coding for a fluorescent protein is incubated with a transfection agent and then introduced into a culture of neurons. Subsequently, images of the neurons are acquired and analyzed to track the vesicles' movement.
08:15
Quantification of Endosome and Lysosome Motilities in Cultured Neurons Using Fluorescent Probes
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Cited by 6 •
2017
The investigation of membrane trafficking is crucial for understanding neuronal functions. Here, we introduce a method for quantifying vesicle motility in neurons. This is a convenient method that can be adapted to the quantification of membrane trafficking in the nervous system.
08:15
Gastrointestinal Motility Monitor (GIMM)
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Cited by 36 •
2010
Evaluation of colonic motility in the guinea pig distal colon with the Gastrointestinal Motility Monitor (GIMM) is a straightforward and simple to learn approach to quantitatively evaluate propulsive motility in the gastrointestinal tract.
08:52
An Introduction to Cell Motility and Migration
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2023
Cell motility and migration play important roles in both normal biology and in disease. On one hand, migration allows cells to generate complex tissues and organs during development, but on the other hand, the same mechanisms are used by tumor cells to move and spread in a process known as cancer metastasis. One of the primary cellular machineries that make cell movement possible is an intracellular network of myosin and actin molecules, together known as “actomyosin”, which creates a...
12:00
Spatiotemporal Mapping of Motility in Ex Vivo Preparations of the Intestines
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Cited by 26 •
2016
Recently available video recording and spatiotemporal mapping (STmap) techniques make it possible to visualize and quantify both propagating and mixing patterns of intestinal motility. The goal of this protocol is to explain the generation and analysis of STmaps using the GastroIntestinal Motility Monitoring (GIMM) system.
FAQs
Kinesin and dynein act as motor proteins that move vesicles along microtubules, enabling intracellular cargo transport within neurons. Their coordinated activity helps position membrane-bound compartments at appropriate cellular locations, including regions involved in synaptic communication. Examining these motors provides insight into how neurons maintain delivery pathways over the distances required for axonal transport and synaptic function.
Adaptor proteins connect specific vesicle cargoes with the appropriate motor machinery, while cargo identity helps determine which transport pathway is engaged. Cellular signals further regulate motor activity, allowing movement to respond to changing neuronal demands. Together, these factors make transport selective and controllable rather than simply distributing all vesicles through the same cytoskeletal route.
Microtubules support transport through neuronal processes, where kinesin and dynein move vesicles over intracellular pathways. Actin-based motors and cytoskeletal networks become important near synapses, helping support delivery in regions associated with neurotransmitter release. Considering both systems explains how vesicles can be transported through the neuron and then handled effectively near synaptic sites.
Experimental analysis can reveal how vesicles move through neuronal transport pathways and how motor activity, adaptor proteins, cargo identity, and cellular signals influence that movement. These observations connect cellular transport behavior with functional outcomes, such as delivery to synaptic regions. The resulting information helps investigators study axonal transport and the maintenance of neurotransmitter secretion.
Vesicle movement helps deliver synaptic vesicles to release sites, where their availability supports ongoing neurotransmitter secretion. In this context, transport is directly connected to synaptic physiology because impaired delivery could affect how efficiently release is maintained. Studying motility therefore links intracellular organization with the communication process that allows neurons to signal to one another.
Transport defects can disrupt neuronal function by interfering with the movement and delivery of vesicles needed for synaptic communication. Analyses of vesicle motility can therefore help identify how altered motor activity, adaptor regulation, cargo handling, or cytoskeletal support may affect neurons. This makes the process relevant to research on axonal transport problems and neurological disease mechanisms.