Stem Cell-Based Organoid Models of Neurodevelopmental Disorders

Area of Science:

• Neuroscience
• Genetics
• Developmental Biology

Background:

• The last decade has seen significant progress in identifying genetic factors contributing to neurodevelopmental disorders.
• Understanding these genetic underpinnings is crucial for elucidating cellular mechanisms and developing targeted therapies.

Purpose of the Study:

• To review the application of human brain organoids in studying neurodevelopmental disorders.
• To highlight recent advancements and challenges in using these models for mechanistic insights.

Main Methods:

• Utilizing human brain organoids derived from stem cells to model genetic neurodevelopmental disorders.
• Incorporating techniques such as specific morphogen gradients, diverse cell type mixtures, and animal model engraftment.
• Comparing human organoids with nonhuman primate organoids.

Main Results:

• Brain organoids have provided key insights into disorders like microcephaly, autism, and focal epilepsy.
• Recent advances address limitations such as organoid variability and cell type representation.
• Emerging data from these models are advancing the understanding of human neurodevelopmental disorder mechanisms.

Conclusions:

• Human brain organoids are powerful tools for dissecting the genetic and molecular basis of neurodevelopmental disorders.
• Ongoing methodological improvements are enhancing the fidelity and utility of these models.
• These advancements pave the way for novel therapeutic strategies for a range of brain conditions.