The Neuromuscular Junction: A Shared Vulnerability in Aging and Disease
Kathryn R Moss1,2, Fereshteh B Darvishi3,2, Yomna Badawi4
1Department of Physical Medicine and Rehabilitation, University of Missouri School of Medicine, Columbia, Missouri 65211 kmoss@missouri.edu smitasaxena@missouri.edu.
Summary
Neuromuscular junction (NMJ) dysfunction drives aging and neuromuscular diseases. Targeting NMJ defects offers shared therapeutic strategies to preserve motor function and muscle strength.
Area of Science:
- Neuroscience
- Cell Biology
- Gerontology
Background:
- The neuromuscular junction (NMJ) is crucial for motor control.
- NMJ dysfunction is an early driver in aging and neuromuscular diseases like ALS and CMT.
- Aging impacts NMJ integrity, contributing to sarcopenia.
Purpose of the Study:
- To review mechanisms of NMJ impairment in aging and neuromuscular diseases.
- To explore emerging molecular drivers of NMJ dysfunction.
- To discuss therapeutic strategies targeting the NMJ.
Main Methods:
- Literature review integrating data from various neuromuscular conditions and aging studies.
- Analysis of presynaptic, postsynaptic, and perisynaptic Schwann cell defects.
- Exploration of omics approaches and congenital myasthenic syndromes.
Main Results:
- Shared and disease-specific mechanisms contribute to NMJ defects.
- Age-related NMJ changes are linked to sarcopenia.
- Novel molecular drivers and therapeutic targets are identified.
Conclusions:
- The NMJ is a critical, modifiable target for preserving motor function.
- Shared therapeutic strategies can stabilize NMJ function across diseases and aging.
- Translational research using organoid models and molecular profiling is key.
Keywords:
Charcot–Marie–Tooth diseaseagingamyotrophic lateral sclerosisneuromuscular diseaseneuromuscular junctionneurotransmissionsarcopeniaspinal muscular atrophyMore Related Videos
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