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Published on: October 10, 2017
ERBB4 colocalizes with phosphorylated tau aggregates in multiple tauopathies
Chihiro Matsumoto1, Tomohiro Kabuta2, Terunori Sano3
1Department of Degenerative Neurological Diseases, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan; Department of NCNP Brain Physiology and Pathology, Institute of Science Tokyo, Tokyo, Japan.
The neuregulin-ERBB4 pathway protein ERBB4 is found in tau tangles in tauopathies like Alzheimer's disease. ERBB4 interacts with tau, suggesting a role in these neurodegenerative diseases.
Area of Science:
- Neuroscience
- Cell Biology
- Molecular Biology
Background:
- The neuregulin-ERBB4 pathway is crucial for cellular functions.
- Dysregulated ERBB4 signaling is linked to neurodegenerative diseases.
- Previous studies implicated ERBB4 in Alzheimer's disease, Parkinson's disease, and others.
Purpose of the Study:
- To investigate ERBB4 expression in tauopathies.
- To determine if ERBB4 is associated with phosphorylated tau pathology.
- To explore the interaction between ERBB4 and tau.
Main Methods:
- Immunohistochemistry to examine ERBB4 colocalization with tau pathology.
- Co-immunoprecipitation assays to assess ERBB4-tau interaction.
- Analysis of brain tissue from various neurodegenerative diseases.
Main Results:
- ERBB4 colocalized with phosphorylated tau inclusions in multiple tauopathies.
- ERBB4 did not colocalize with alpha-synuclein or huntingtin aggregates.
- ERBB4 was found to interact with tau intracellularly.
- Ectopic ERBB4 expression was observed in astrocytes in corticobasal degeneration.
Conclusions:
- ERBB4 is implicated in the pathophysiology of tau-related neurodegenerative diseases.
- ERBB4 may play a significant role in the development or progression of tauopathies.
- Further research is warranted to elucidate the precise mechanisms of ERBB4 in these conditions.
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