Related Experiment Video
Updated: May 15, 2025

Clinical Testing and Spinal Cord Removal in a Mouse Model for Amyotrophic Lateral Sclerosis ALS
Published on: March 17, 2012
The Role of mTOR in Amyotrophic Lateral Sclerosis
José Augusto Nogueira-Machado1, Fabiana Rocha-Silva1, Nathalia Augusta Gomes1
1Stricto Sensu Postgraduate Program in Medicine/Biomedicine, Santa Casa de Belo Horizonte College, Belo Horizonte 30110-005, Brazil.
Abstract:
Background: Amyotrophic lateral sclerosis (ALS) is a rare, progressive, and incurable disease characterized by muscle weakness and paralysis. Recent studies have explored a possible link between ALS pathophysiology and mTOR signaling. Recent reports have linked the accumulation of protein aggregates, dysfunctional mitochondria, and homeostasis to the development of ALS. mTOR plays a pivotal role in controlling autophagy and affecting energy metabolism, in addition to supporting neuronal growth, plasticity, and the balance between apoptosis and autophagy, all of which are important for homeostasis. Aim: This mini-review approaches the regulatory roles of mTOR signaling pathways, their interaction with other metabolic pathways, and their potential to modulate ALS progression. Significance: It discusses how these metabolic signaling pathways affect the neuromuscular junction, producing symptoms of muscle weakness and atrophy similar to those seen in patients with ALS. The discussion includes the concepts of neurocentric and peripheral and the possible connection between mTOR and neuromuscular dysfunction in ALS. Conclusions: It highlights the therapeutic potential of mTOR signaling and interconnections with other metabolic routes, making it a promising biomarker and therapeutic target for ALS.
Insights
This review explores how mTOR signaling impacts Amyotrophic Lateral Sclerosis (ALS) progression. Targeting mTOR pathways may offer new therapeutic strategies for this neurodegenerative disease.
Area of Science:
- Neuroscience
- Metabolic Signaling
- Molecular Biology
Background:
- Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease linked to protein aggregates, mitochondrial dysfunction, and impaired homeostasis.
- Mammalian target of rapamycin (mTOR) signaling is crucial for cellular homeostasis, regulating autophagy, energy metabolism, and neuronal plasticity.
- Dysregulation of mTOR pathways is increasingly implicated in ALS pathophysiology.
Purpose of the Study:
- To review the regulatory roles of mTOR signaling pathways in ALS.
- To examine the interaction of mTOR with other metabolic pathways relevant to ALS.
- To assess the potential of mTOR modulation for treating ALS progression.
Main Methods:
- Literature review of recent studies on mTOR signaling and ALS.
- Analysis of the role of metabolic pathways in neuromuscular junction dysfunction.
- Exploration of neurocentric and peripheral mechanisms in ALS.
Main Results:
- mTOR signaling influences cellular processes critical for neuronal survival and function.
- Metabolic pathways regulated by mTOR impact the neuromuscular junction, contributing to ALS symptoms.
- Evidence suggests a connection between mTOR and neuromuscular dysfunction in ALS.
Conclusions:
- mTOR signaling pathways represent a promising therapeutic target for ALS.
- Interactions between mTOR and other metabolic routes offer potential biomarkers for ALS.
- Modulating mTOR may help manage muscle weakness and atrophy in ALS patients.
Related Concept Videos
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
PI3K/mTOR/AKT Signaling Pathway
Cross-bridge Cycle
Satellite Stem Cells and Muscular Dystrophy
Abnormal Proliferation

