Disorders of neurogenesis and cortical development

Area of Science:

• Neuroscience
• Developmental Biology
• Genetics

Background:

• Cerebral cortex development involves sequential, orchestrated processes like neuronal progenitor proliferation and migration.
• Aberrations in these processes, due to genetic or environmental factors, cause malformations of cortical development (MCDs).
• MCDs are a significant cause of drug-resistant epilepsy and intellectual disability, often presenting with macroscopic brain structural alterations.

Purpose of the Study:

• To provide an overview of the molecular mechanisms underlying genetic malformations of cortical development (MCDs).
• To highlight the link between neurogenesis and cortical development aberrations and specific brain pathologies.

Main Methods:

• Literature review focusing on molecular mechanisms of genetic MCDs.
• Analysis of studies detailing neurogenesis and cortical development pathways.

Main Results:

• Genetic mutations affecting neuronal progenitor proliferation and migration are key contributors to MCDs.
• Specific molecular pathways are implicated in the generation of various genetic MCDs.
• Macroscopic brain alterations in MCDs suggest widespread neuronal circuit reorganization.

Conclusions:

• Understanding the molecular basis of MCDs is crucial for addressing associated neurological disorders.
• Targeting molecular mechanisms offers potential therapeutic avenues for epilepsy and intellectual disability linked to MCDs.