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Related Concept Videos

Eukaryotic Compartmentalization01:37

Eukaryotic Compartmentalization

One of the distinguishing features of eukaryotic cells is that they contain membrane-bound organelles, such as the nucleus and mitochondria, that carry out specialized functions. Since biological membranes are only selectively permeable to solutes, they help create a compartment with controlled conditions inside an organelle. These microenvironments are tailored to the organelle's specific functions and help isolate them from the surrounding cytosol.
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Eukaryotic Compartmentalization01:46

Eukaryotic Compartmentalization

One of the distinguishing features of eukaryotic cells is that they contain membrane-bound organelles, such as the nucleus and mitochondria, that carry out specialized functions. Since biological membranes are only selectively permeable to solutes, they help create a compartment with controlled conditions inside an organelle. These microenvironments are tailored to the organelle's specific functions and help isolate them from the surrounding cytosol.
For example, lysosomes in the animal cells...
Eukaryotic Compartmentalizations01:46

Eukaryotic Compartmentalizations

One of the distinguishing features of eukaryotic cells is that they contain membrane-bound organelles, such as the nucleus and mitochondria, that carry out specialized functions. Since biological membranes are only selectively permeable to solutes, they help create a compartment with controlled conditions inside an organelle. These microenvironments are tailored to the organelle's specific functions and help isolate them from the surrounding cytosol.
For example, lysosomes in the animal cells...
Neuron Structure01:30

Neuron Structure

Neurons are the main type of cell in the nervous system that generate and transmit electrochemical signals. They primarily communicate with each other using neurotransmitters at specific junctions called synapses. Neurons come in many shapes that often relate to their function, but most share three main structures: an axon and dendrites that extend out from a cell body.
Structure and Function of Neurons
The neuronal cell body—the soma— houses the nucleus and organelles vital to cellular...
Neuron Structure01:31

Neuron Structure

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Neuronal Communication01:28

Neuronal Communication

Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...

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Compartmentalization of Human Stem Cell-Derived Neurons within Pre-Assembled Plastic Microfluidic Chips
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Compartmentalization within neurites: its mechanisms and implications.

Takeo Katsuki1, Rajshri Joshi, Deepak Ailani

  • 1Department of Developmental Genetics, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, Japan.

Developmental Neurobiology
|May 11, 2011
PubMed
Summary

Neurons have distinct compartments within their processes, like axons and dendrites, crucial for nervous system development. Understanding intra-neurite patterning mechanisms reveals how proteins achieve specific localization for neuronal function.

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Published on: November 2, 2018

Area of Science:

  • Neuroscience
  • Cell Biology

Background:

  • Neurons possess distinct sub-cellular compartments: dendrites and axons.
  • Evidence suggests further intra-neurite compartmentalization based on molecular distribution.

Purpose of the Study:

  • To review mechanisms of intra-neurite patterning.
  • To discuss the role of intra-neurite patterning in nervous system development and function.

Main Methods:

  • Review of recent scientific literature on protein localization within neuronal processes.
  • Analysis of molecular mechanisms underlying compartment-specific protein targeting.

Main Results:

  • Membrane molecules involved in axon guidance and synapse formation exhibit segment-specific localization.
  • Proteins achieve localization via cell-autonomous or extrinsic mechanisms.
  • Regulatory mechanisms include transcriptional regulation, local translation, diffusion barriers, endocytosis, and selective membrane targeting.

Conclusions:

  • Intra-neurite compartmentalization provides platforms for neuronal structural and functional diversification.
  • Understanding these patterns is key to comprehending nervous system development and function.