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Genetic Modification of Brain Organoids
Jan Fischer1, Michael Heide1, Wieland B Huttner1
1Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany.
Frontiers in Cellular Neuroscience
|January 11, 2020
Summary
Genetic modification techniques enhance brain organoid modeling for studying human brain development and disease. This review details transient and stable methods, including AAV, electroporation, lentivirus, transposons, and CRISPR/Cas9.
Area of Science:
- Neuroscience
- Developmental Biology
- Genetic Engineering
Background:
- Brain organoids are advanced 3D models for studying human brain development, evolution, and diseases.
- Effective utilization of brain organoids relies on sophisticated genetic modification techniques.
- Genetic modifications can be applied at various stages: founding cells, embryoid bodies (EBs), or mature organoids.
Purpose of the Study:
- To review and discuss current transient and stable genetic modification techniques for brain organoids.
- To analyze the advantages and disadvantages of each technique.
- To provide an outlook on future developments in genetic modification of brain organoids.
Main Methods:
- Description of transient genetic modification methods: adeno-associated virus (AAV) and electroporation.
- Description of stable genetic modification methods: lentivirus (including viral stamping), transposons, and CRISPR/Cas9 systems.
- Comparative analysis of the applicability, benefits, and limitations of these techniques.
Main Results:
- Transient methods (AAV, electroporation) offer flexibility for short-term studies.
- Stable methods (lentivirus, transposons, CRISPR/Cas9) enable long-term genetic alterations and lineage tracing.
- Each method presents unique advantages and disadvantages concerning efficiency, specificity, and application stage.
Conclusions:
- A diverse toolkit of genetic modification techniques is available for brain organoid research.
- The choice of method depends on the specific research question and desired outcome.
- Continued advancements in these techniques will further enhance the utility of brain organoids for understanding neurological processes and diseases.
