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Quantitative Analysis of Mitochondria-Associated Endoplasmic Reticulum Membrane (MAM) Stabilization in a Neural Model of Alzheimer's Disease (AD)
Published on: January 10, 2025
The role of mitogen-activated protein kinase pathways in Alzheimer's disease
Xiongwei Zhu1, Hyoung-gon Lee, Arun K Raina
1Institute of Pathology, Case Western Reserve University, 2085 Adelbert Road, Cleveland, OH 44106, USA. xxz12@po.cwru.edu
Abstract:
Given the critical role of mitogen-activated protein kinase (MAPK) pathways in regulating cellular processes that are affected in Alzheimer's disease (AD), the importance of MAPKs in disease pathogenesis is being increasingly recognized. All MAPK pathways, i.e., the extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK) and p38 pathways, are activated in vulnerable neurons in patients with AD suggesting that MAPK pathways are involved in the pathophysiology and pathogenesis of AD. Here we review recent findings implicating the MAPK pathways in AD and discuss the relationship between these pathways and the prominent pathological processes, i.e., tau phosphorylation and amyloid-beta deposition, as well as the functional association to amyloid beta protein precursor. We suggest that regulation of these pathways may be a central facet to any potential treatment for the disease.
Insights
Mitogen-activated protein kinase (MAPK) pathways are activated in Alzheimer's disease (AD) neurons, suggesting their role in AD pathogenesis. Targeting these MAPK pathways may offer a new treatment strategy for Alzheimer's disease.
Area of Science:
- Neuroscience
- Cell Biology
- Biochemistry
Background:
- Mitogen-activated protein kinase (MAPK) pathways regulate critical cellular processes.
- Dysregulation of these pathways is implicated in neurodegenerative diseases like Alzheimer's disease (AD).
Purpose of the Study:
- To review recent findings on the role of MAPK pathways in Alzheimer's disease pathogenesis.
- To discuss the relationship between MAPK pathways and key AD pathologies, including tau phosphorylation and amyloid-beta deposition.
Main Methods:
- Literature review of recent research on MAPK pathways in Alzheimer's disease.
- Analysis of the connection between MAPK signaling and AD-specific molecular events.
Main Results:
- All major MAPK pathways (ERK, JNK, p38) are activated in neurons affected by AD.
- These activated pathways are linked to tau phosphorylation and amyloid-beta deposition in AD.
Conclusions:
- MAPK pathways are significantly involved in the pathophysiology and pathogenesis of Alzheimer's disease.
- Modulating MAPK pathways could be a key therapeutic target for treating AD.
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