Organelle Transport
Organelle Transport - Related Videos
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.
02:22
Regulated mRNA Transport
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2020
In eukaryotes, transcription and translation are compartmentalized; an mRNA is first synthesized in the nucleus and then selectively transported to the cytoplasm for protein synthesis. Before transport, a pre-mRNA undergoes several steps of post-transcriptional modifications including splicing, 5' capping, and the addition of a poly-adenine tail. Various proteins bind to the pre-mRNA during these modifications. The mRNA transport takes place with the help of multiple proteins playing specific...
FAQs
Motor proteins convert ATP chemical energy into mechanical movement along cytoskeletal filaments. Kinesin and dynein operate on microtubules, whereas myosin moves along actin. This division of labor enables cargo to travel through different intracellular routes rather than dispersing randomly, helping organelles reach locations where they support local cellular activities.
Their association with distinct filament systems helps establish direction and destination within the cell. Kinesin and dynein transport cargo along microtubules, while myosin uses actin filaments. Because these tracks form different intracellular pathways, the motor-cargo system can deliver organelles to particular regions and maintain spatial relationships among cellular compartments.
Organelle distribution changes the proximity of functional compartments to the regions where their activities are needed. Transport therefore helps cells respond to changing energy demands while preserving organization. Mitochondrial positioning is especially relevant in this context because moving these organelles supports their distribution throughout the cell and contributes to cellular homeostasis.
Microtubule-based transport uses kinesin or dynein, whereas actin-based transport uses myosin. These systems differ in the filament tracks and motor proteins involved, allowing intracellular movement to occur through more than one structural network. Considering both systems is important when interpreting how cells position organelles, vesicles, and other membrane-bound or non-membrane-bound structures.
Studying transport can clarify how mitochondria become distributed, how endosomes and lysosomes are positioned, and how vesicles move between cellular compartments. These outcomes reveal more than cargo movement alone: they show how intracellular organization supports communication, coordinated function, and homeostasis. The approach is therefore useful for connecting spatial organization with cell physiology.
Transport defects can disrupt the positioning and delivery of cellular components, making organelle transport relevant to disease research. The overview specifically connects impaired trafficking with neurodegeneration, infection, and other diseases. Examining which cargoes, motor proteins, or filament systems are affected can help relate altered intracellular organization to disease-associated cellular dysfunction.
These cargoes represent several interconnected functions of intracellular organization. Mitochondria relate to energy distribution, while endosomes and lysosomes require controlled positioning within the cell. Vesicle delivery supports communication between compartments. Examining these structures together allows researchers to assess how transport coordinates energy management, compartmental organization, and the movement of materials through the cell.