Cortical Lamination
Cortical Lamination - Related Videos
07:22
Using a Laminating Technique to Perform Confocal Microscopy of the Human Sclera
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Cited by 1 •
2016
Human sclera tissue is mainly collagen; therefore, it is not easily usable for immunohistochemistry. To achieve the goal of performing immunohistochemistry for confocal microscopy of scleral tissue, a laminating technique was used.
13:47
Ex utero Electroporation and Whole Hemisphere Explants: A Simple Experimental Method for Studies of Early Cortical Development
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Cited by 14 •
2013
This protocol describes an improved explant procedure that involves ex utero electroporation, dissection and culture of entire cerebral hemispheres from the embryonic mouse. The preparation facilitates pharmacological studies and assays of gene function during early cortical development.
11:25
Isolation and Culture of Mouse Cortical Astrocytes
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Cited by 460 •
2013
Astrocytes have been recognized to be versatile cells participating in fundamental biological processes that are essential for normal brain development and function, and central nervous system repair. Here we present a rapid procedure to obtain pure mouse astrocyte cultures to study the biology of this major class of central nervous system cells.
08:49
Visualization of Cortical Modules in Flattened Mammalian Cortices
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Cited by 22 •
2018
This article describes a detailed methodology to obtain flattened tangential sections from mammalian cortices and visualize cortical modules using histochemical and immunohistochemical methods.
02:04
Detection of Neuronal Aging in a Cortical Organoid Section
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2025
This video demonstrates the method of detecting aging neurons in cortical organoid sections by staining for beta-galactosidase activity, which is elevated in senescent cells. The enzyme cleaves a substrate to produce a blue product, followed by microscopic observation of the stained neurons.
FAQs
The inside-out sequence organizes newly generated neurons into the developing cortical plate in a defined temporal order. Neural progenitor cells produce neurons, and radial glial fibers provide a pathway for their migration. This sequence helps establish the layered arrangement needed for later specialization and the formation of appropriate cortical connections.
Radial glial fibers support the movement of developing neurons toward the cortical plate, while molecular signals guide their layer-specific differentiation and connections. These mechanisms coordinate both neuronal position and identity. Their combined action allows the cortex to develop organized layers rather than an unstructured collection of cells.
Layer-specific connectivity links the physical organization of the cortex with specialized information processing. Distinct layers can participate in circuits supporting sensation, movement, and cognition, so their connections influence how information is handled. Studying these relationships helps connect developmental architecture with the functional roles of cortical circuits.
Abnormal layer formation provides clues about how developmental disruptions affect cortical organization and connectivity. Because lamination reflects coordinated progenitor activity, neuronal migration, differentiation, and connection formation, deviations can help researchers investigate mechanisms underlying neurodevelopmental disorders. The resulting evidence links altered structure with potential changes in circuit development and function.
A developmental study can examine how neural progenitor cells generate neurons, how those neurons move along radial glial fibers, and how molecular signals influence their eventual differentiation and connections. Considering these events together reveals how the cortical plate becomes organized and identifies developmental stages at which layer formation may be altered.
Brain organoids provide a model for examining aspects of cortical development outside the intact brain. Analyses of organoids can offer insight into how cortical layers form and how developmental abnormalities may arise. They are also relevant to disease modeling, allowing researchers to investigate lamination-related processes in a controlled experimental context.
Comparisons across species help researchers examine which features of cortical lamination are shared and which vary during cortical evolution. These differences can clarify how layer organization relates to changing brain structure and function. Together with organoid studies, comparative analysis broadens understanding of cortical development, specialization, and disease-relevant abnormalities.