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3D Modeling of Dendritic Spines with Synaptic Plasticity
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The Role of APP in Structural Spine Plasticity
Elena Montagna1, Mario M Dorostkar2, Jochen Herms1,2,3
1Department for Translational Brain Research, German Center for Neurodegenerative Diseases (DZNE), Ludwig-Maximilian-University MunichMunich, Germany.
Frontiers in Molecular Neuroscience
|May 26, 2017
Summary
Amyloid precursor protein (APP) influences neuron structure and function. APP dysregulation impairs synaptic plasticity, affecting brain health and potentially leading to neurological disorders.
Area of Science:
- Neuroscience
- Molecular Biology
- Cell Biology
Background:
- Amyloid precursor protein (APP) is a transmembrane protein crucial for neuronal function.
- APP and its fragments play roles in synapse formation, stability, and structural plasticity.
- Alterations in APP levels impact dendritic spine morphology and excitatory synapse function.
Purpose of the Study:
- To review the mechanisms by which APP influences structural spine plasticity.
- To explore the role of APP in regulating astrocytic D-serine homeostasis and its impact on synaptic plasticity.
Main Methods:
- Literature review of studies on APP function and synaptic plasticity.
- Analysis of research on APP cleavage products and their effects.
- Examination of data regarding APP's interaction with astrocytic D-serine.
Main Results:
- APP is integral to structural spine plasticity, involving morphological changes at excitatory synapses.
- Both APP overexpression and knockout impair synaptic plasticity.
- APP regulates astrocytic D-serine homeostasis, which modulates synaptic plasticity.
Conclusions:
- APP is a key regulator of structural spine plasticity in neurons.
- APP's role extends to astrocytic D-serine regulation, further influencing synaptic function.
- Understanding APP mechanisms is vital for addressing neurological conditions linked to synaptic dysfunction.
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