Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

The Neuromuscular Junction01:19

The Neuromuscular Junction

9.6K
The nervous system consists of complex motor neuron circuits, including upper motor neurons originating from the cerebral cortex and lower motor neurons starting in the spinal cord, coordinating both voluntary and involuntary movements. Among these, somatic motor neurons activate skeletal muscles and are classified into alpha, beta, and gamma types. Alpha neurons are vital for voluntary movement coordination, while gamma neurons adjust muscle spindle sensitivity, and the function of beta...
9.6K
Synaptic Signaling01:09

Synaptic Signaling

5.5K
Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.
Most synapses are chemical, meaning an electrical impulse or action potential spurs the release of chemical messengers called neurotransmitters. The neuron sending the signal is called the presynaptic neuron, and the neuron receiving the signal is the postsynaptic neuron.
The presynaptic neuron fires an action potential that...
5.5K
Neuromuscular Junction And Blockade01:29

Neuromuscular Junction And Blockade

3.1K
The site of chemical communication between a motor neuron and a muscle fiber is called the neuromuscular junction (NMJ). The end of the motor neuron at the NMJ divides into a cluster of synaptic end bulbs. The cytoplasm of these bulbs consists of synaptic vesicles enclosing acetylcholine molecules, the principal neurotransmitter released at the NMJ. The region opposite the synaptic bulb that ends in the muscle fiber is called the motor end plate, which has acetylcholine receptors. Within the...
3.1K
The Synapse02:47

The Synapse

125.0K
Neurons communicate with one another by passing on their electrical signals to other neurons. A synapse is the location where two neurons meet to exchange signals. At the synapse, the neuron that sends the signal is called the presynaptic cell, while the neuron that receives the message is called the postsynaptic cell. Note that most neurons can be both presynaptic and postsynaptic, as they both transmit and receive information.
125.0K
Chemical Synapses01:26

Chemical Synapses

8.8K
Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
8.8K
Neuroplasticity01:01

Neuroplasticity

338
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
338

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Muscle-Specific Kinase Signaling and Its Therapeutic Potential.

Muscle & nerve·2026
Same author

MuSK antibodies differently affect the MuSK signaling cascade depending on valency and epitope specificity.

Journal of autoimmunity·2026
Same author

An S752D activation loop mutation dynamically primes Muscle-Specific Kinase for activation.

The Biochemical journal·2026
Same author

Cytoplasmic region of beta-dystroglycan is essential for postsynaptic maturation and neuromuscular function in mice.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Gene-specific response to muscle specific kinase agonist antibody in the treatment of congenital myasthenic syndromes.

Brain communications·2026
Same author

A Conserved Enhancer Locus in Extrachromosomal DNA and Homogeneously Staining Regions Activates MYC Transcription in Group 3 Medulloblastoma.

Cancer research·2026
Same journal

Evolutionary and Biochemical Perspectives on the Incorporation and Utilization of Selenocysteine.

Cold Spring Harbor perspectives in biology·2026
Same journal

The Mitochondrial Calcium Uniporter: From Parts to Signaling Networks.

Cold Spring Harbor perspectives in biology·2026
Same journal

Growth Control and Beyond: Functional Diversity and Regulation of the Hippo Pathway in the Nervous System.

Cold Spring Harbor perspectives in biology·2026
Same journal

Structural Studies of Core Hippo Pathway Components.

Cold Spring Harbor perspectives in biology·2026
Same journal

The Hippo Pathway in Intestinal Regeneration, Fetal Reprogramming, and Tumorigenesis.

Cold Spring Harbor perspectives in biology·2026
Same journal

A Synergy between Genetics and Biochemistry Unravels the Molecular Architecture of the Hippo Signaling Pathway.

Cold Spring Harbor perspectives in biology·2026
See all related articles

Related Experiment Video

Updated: Jun 27, 2025

The Fibular Nerve Injury Method: A Reliable Assay to Identify and Test Factors That Repair Neuromuscular Junctions
06:01

The Fibular Nerve Injury Method: A Reliable Assay to Identify and Test Factors That Repair Neuromuscular Junctions

Published on: August 11, 2016

15.8K

Building, Breaking, and Repairing Neuromuscular Synapses.

Ruth Herbst1, Maartje G Huijbers2,3, Julien Oury4

  • 1Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria.

Cold Spring Harbor Perspectives in Biology
|May 2, 2024
PubMed
Summary
This summary is machine-generated.

Understanding key genes like Agrin, Lrp4, MuSK, and Dok7 in neuromuscular synapse formation is crucial for treating muscle weakness and fatigue caused by related diseases.

More Related Videos

Dissection of Single Skeletal Muscle Fibers for Immunofluorescent and Morphometric Analyses of Whole-Mount Neuromuscular Junctions
08:41

Dissection of Single Skeletal Muscle Fibers for Immunofluorescent and Morphometric Analyses of Whole-Mount Neuromuscular Junctions

Published on: August 14, 2021

8.5K
The Neuromuscular Junction: Measuring Synapse Size, Fragmentation and Changes in Synaptic Protein Density Using Confocal Fluorescence Microscopy
12:18

The Neuromuscular Junction: Measuring Synapse Size, Fragmentation and Changes in Synaptic Protein Density Using Confocal Fluorescence Microscopy

Published on: December 26, 2014

21.7K

Related Experiment Videos

Last Updated: Jun 27, 2025

The Fibular Nerve Injury Method: A Reliable Assay to Identify and Test Factors That Repair Neuromuscular Junctions
06:01

The Fibular Nerve Injury Method: A Reliable Assay to Identify and Test Factors That Repair Neuromuscular Junctions

Published on: August 11, 2016

15.8K
Dissection of Single Skeletal Muscle Fibers for Immunofluorescent and Morphometric Analyses of Whole-Mount Neuromuscular Junctions
08:41

Dissection of Single Skeletal Muscle Fibers for Immunofluorescent and Morphometric Analyses of Whole-Mount Neuromuscular Junctions

Published on: August 14, 2021

8.5K
The Neuromuscular Junction: Measuring Synapse Size, Fragmentation and Changes in Synaptic Protein Density Using Confocal Fluorescence Microscopy
12:18

The Neuromuscular Junction: Measuring Synapse Size, Fragmentation and Changes in Synaptic Protein Density Using Confocal Fluorescence Microscopy

Published on: December 26, 2014

21.7K

Area of Science:

  • Neuroscience
  • Molecular Biology
  • Genetics

Background:

  • Neuromuscular synapses are formed and maintained through complex signaling between motor neurons, muscle cells, and Schwann cells.
  • Defects in synapse formation signaling, due to gene mutations or autoantibodies, cause neuromuscular diseases characterized by muscle weakness and fatigue.

Purpose of the Study:

  • To elucidate the roles of four key genes: Agrin, Lrp4, MuSK, and Dok7, in neuromuscular synapse signaling.
  • To connect the understanding of these genes' mechanisms to the pathophysiology of neuromuscular diseases.
  • To highlight how this knowledge informs the development of novel therapeutic strategies.

Main Methods:

  • Review and synthesis of existing research on the genetic and molecular mechanisms of neuromuscular synapse formation.
  • Analysis of the roles of Agrin, Lrp4, MuSK, and Dok7 in the context of neuromuscular disease.
  • Examination of the translational potential of this knowledge for emerging therapies.

Main Results:

  • Detailed description of the signaling pathway involving Agrin, Lrp4, MuSK, and Dok7 in synapse development.
  • Established links between dysregulation of these genes and the pathogenesis of various neuromuscular disorders.
  • Identification of therapeutic targets based on the elucidated molecular mechanisms.

Conclusions:

  • The genes Agrin, Lrp4, MuSK, and Dok7 are critical components of the neuromuscular synapse formation pathway.
  • Understanding their functions provides insights into the molecular basis of neuromuscular diseases.
  • This knowledge is paving the way for targeted and effective treatments for these debilitating conditions.