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Related Experiment Video

Updated: May 12, 2026

An Organotypic Slice Assay for High-Resolution Time-Lapse Imaging of Neuronal Migration in the Postnatal Brain

An Organotypic Slice Assay for High-Resolution Time-Lapse Imaging of Neuronal Migration in the Postnatal Brain

Published on: December 11, 2010

Tissue-Wide Effects Override Cell-Intrinsic Gene Function in Radial Neuron Migration.

Andi H Hansen¹, Florian M Pauler¹, Michael Riedl¹

¹Institute of Science and Technology Austria, Am Campus 1, 3400 Klosterneuburg, Austria.

Oxford Open Neuroscience

|April 10, 2024

Summary

This summary is machine-generated.

Tissue-wide gene effects, not just cell-autonomous ones, are key to guiding neuronal migration during mammalian neocortex development. This finding impacts understanding neurodevelopmental diseases.

Keywords:

4D live-imaging cell-autonomous gene function cerebral cortex development mosaic analysis with double markers (MADM)neuronal migration non-cell-autonomous effects single-cell genetics

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Last Updated: May 12, 2026

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Published on: December 11, 2010

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Ex Utero Electroporation and Organotypic Slice Cultures of Embryonic Mouse Brains for Live-Imaging of Migrating GABAergic Interneurons

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Published on: April 20, 2018

Area of Science:

Neuroscience
Developmental Biology
Genetics

Background:

Mammalian neocortex development involves precise neuronal and glial cell organization into six layers (laminae).
Disruptions in cortical lamination are linked to neurodevelopmental disorders.
Radial projection neuron migration is crucial for forming cortical layers, but the role of tissue-wide genetic factors versus cell-autonomous gene function is unclear.

Purpose of the Study:

To investigate the relative contributions of cell-autonomous gene function and tissue-wide genetic effects on radial projection neuron migration in the neocortex.
To elucidate the impact of the broader genetic landscape within the tissue on neuronal migration phenotypes.

Main Methods:

Utilized mosaic analysis with double markers (MADM) technology for inducible, sparse, or global gene function deletion.
Employed quantitative single-cell phenotyping to analyze migration patterns.
Integrated computational modeling to interpret MADM-based gene ablation data.

Main Results:

Global, tissue-wide gene effects were found to predominate over cell-autonomous gene function in regulating radial neuron migration, though this varied by gene.
The genetic landscape of the tissue significantly influences the migration phenotype of individual cortical projection neurons.
Demonstrated that tissue-wide effects are critical for understanding normal cortical development and malformations.

Conclusions:

Neuronal migration in the neocortex is significantly influenced by the overall genetic environment of the tissue, not solely by individual cell genetics.
These findings suggest that global tissue-wide effects are essential etiological components of focal malformations of cortical development and other neurological diseases.
Highlights the importance of considering systemic genetic interactions in neurodevelopmental research.