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SYNGAP1 mutations: Clinical, genetic, and pathophysiological features.

Mudit Agarwal¹, Michael V Johnston², Carl E Stafstrom³

¹All India Institute of Medical Sciences, New Delhi, India.

International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience

|August 28, 2019

Summary

This summary is machine-generated.

Mutations in the SYNGAP1 gene cause a neurodevelopmental disorder (MRD5) affecting brain development. This review explores SYNGAP1's role in synaptic function and compares its molecular pathology to fragile X syndrome.

Keywords:

Epilepsy Fragile X syndrome Intellectual disability Plasticity SYNGAP1 Synapse

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Area of Science:

Neuroscience
Genetics
Molecular Biology

Background:

SYNGAP1 encodes a key protein in excitatory neuron synapses.
This protein is vital for synaptic development, structure, function, and plasticity.
SYNGAP1 mutations lead to neurodevelopmental disorder MRD5, characterized by intellectual disability, motor impairments, and epilepsy.

Purpose of the Study:

To review the clinical and pathophysiological aspects of SYNGAP1 mutations.
To focus on the effects of these mutations on synaptogenesis, neural circuit function, and cellular plasticity.
To compare the molecular pathogenesis of SYNGAP1 mutations with fragile X syndrome.

Main Methods:

Literature review of clinical and molecular studies on SYNGAP1 mutations.
Analysis of the role of SYNGAP1 in synaptic function and plasticity.
Comparative analysis of SYNGAP1 mutations and fragile X syndrome pathogenesis.

Main Results:

SYNGAP1 mutations disrupt normal brain development and synaptic function.
The disorder manifests as intellectual disability, motor impairments, and epilepsy.
Understanding SYNGAP1's molecular mechanisms offers insights into neurodevelopmental disorders.

Conclusions:

SYNGAP1 is crucial for normal brain development and synaptic function.
Comparing SYNGAP1 mutations with fragile X syndrome highlights shared and distinct molecular pathways.
Insights gained could inform the development of targeted therapies for neurodevelopmental disorders.