Brain Organoids as Model Systems for Genetic Neurodevelopmental Disorders

Area of Science:

• Neuroscience
• Developmental Biology
• Genetics

Background:

• Neurodevelopmental disorders (NDDs) disrupt central nervous system (CNS) development, causing neurological and neuropsychiatric issues.
• Genetic factors are increasingly identified in NDDs, necessitating experimental models to study molecular pathways.
• Limited access to patient brain tissue hinders research into specific molecular defects and their impact on brain function.

Purpose of the Study:

• To review emerging methodological approaches in brain organoid technologies.
• To explore the application of cerebral organoids in dissecting disease mechanisms of pediatric brain developmental disorders.
• To focus on autism spectrum disorders (ASDs) and epileptic encephalopathies.

Main Methods:

• Utilizing advances in stem cell technologies and genome editing to create 3D cerebral organoids.
• Generating organoids that recapitulate human brain development stages.
• Developing whole-brain or region-specific organoids with neuronal and non-neuronal cell types.

Main Results:

• Cerebral organoids model key brain developmental processes, including cell morphogenesis, migration, and connectivity.
• These 3D in vitro models hold potential for personalized diagnostics and therapeutics for NDDs.
• The review summarizes current methodologies and applications in the field of brain organoid research.

Conclusions:

• Brain organoid technology is a powerful tool for investigating the molecular underpinnings of NDDs.
• These models provide crucial insights into complex pediatric brain disorders.
• Further development of organoid technologies promises advancements in understanding and treating NDDs.