Organelle Vesicle Transport
Organelle Vesicle Transport - Related Videos
01:43
The Movement of Organelles and Vesicles
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2023
In eukaryotic cells, cytoskeletal filaments such as actin, microtubules, and intermediate filaments form a mesh-like cytoskeletal network. These filaments serve as tracks for transporting cellular cargo. Specialized motor proteins use the chemical energy stored in adenosine triphosphate (ATP) for this transport. During interphase, microtubules are polarized, with the plus-end towards the cell periphery and the minus-end towards the cell center. Two microtubule-associated motor proteins,...
03:00
Tracking Axonal Transport of Organelles in Motor Neurons Using a Microfluidic Device
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2025
This video demonstrates a method for tracking axonal transport in motor neurons using a microfluidic chamber system. It involves culturing mouse embryonic spinal cord tissues in polymer-coated wells with nutrient medium to induce axonal growth. The movement of fluorescent dye-stained organelles in live imaging, confirms the bidirectional axonal transport.
00:07
Visualizing and Analyzing Intracellular Transport of Organelles and Other Cargos in Astrocytes
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Cited by 4 •
2019
Here we describe an in vitro live-imaging method to visualize intracellular transport of organelles and trafficking of plasma membrane proteins in murine astrocytes. This protocol also presents an image analysis methodology to determine cargo transport itineraries and kinetics.
10:12
Axonal Transport of Organelles in Motor Neuron Cultures using Microfluidic Chambers System
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Cited by 8 •
2020
Axonal transport is a crucial mechanism for motor neuron health. In this protocol we provide a detailed method for tracking the axonal transport of acidic compartments and mitochondria in motor neuron axons using microfluidic chambers.
10:08
Organelle Transport in Cultured Drosophila Cells: S2 Cell Line and Primary Neurons.
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Cited by 22 •
2013
Drosophila S2 cells and cultured neurons are great systems for imaging of motor-driven organelle transport in vivo. Here we describe detailed protocols for culturing both cell types, their imaging and analysis of transport.
FAQs
Cargo selection is an early control point in organelle vesicle transport. A budding vesicle does not simply capture everything near the donor membrane; it incorporates selected proteins, lipids, and other cargo. That selectivity helps preserve differences between membrane-bound compartments, because each delivery event can contribute the appropriate molecular contents to its destination.
Movement after budding depends on the cytoskeletal track available to the vesicle. Microtubules and actin filaments provide routes, while motor proteins move cargo along those structures. This arrangement connects membrane compartments across the cell and allows transport to proceed beyond the immediate donor membrane, supporting the organized distribution of materials required for cellular maintenance.
Rab GTPases and SNARE proteins control different but connected stages of delivery. Rab GTPases help specify where a vesicle should be targeted, whereas SNARE proteins help promote fusion with the target membrane. Together, these regulators make transport more selective than simple membrane contact, helping ensure that cargo reaches the appropriate compartment.
Vesicle traffic provides a controlled connection between the endoplasmic reticulum and Golgi apparatus. Selected proteins and lipids can leave one membrane-bound compartment, travel through the cell, and fuse with the other. This exchange supports organelle communication and contributes to the broader organization of the secretory system in eukaryotic cells.
Several major cellular routes rely on this transport system, including secretion, endosome-to-lysosome trafficking, and recycling. These routes direct cargo toward release from the cell, delivery to lysosomes, or return through recycling pathways. Together, they help maintain membrane organization and support the movement of cellular materials through distinct processing compartments.
Studying organelle vesicle transport helps researchers connect membrane trafficking with cell growth, signaling, and homeostasis. Because the system depends on coordinated cargo selection, movement, targeting, and fusion, defects can disturb cellular organization and contribute to disease. Its regulation therefore provides a framework for investigating both normal cell function and trafficking-related disorders.