Neuronal Migration Assay
Neuronal Migration Assay - Related Videos
08:24
The Transwell Migration Assay
0 Views •
2023
Cells migration in response to chemical cues is crucial to development, immunity and disease states such as cancer. To quantify cell migration, a simple assay was developed in 1961 by Dr. Stephen Boyden, which is now known as the transwell migration assay or Boyden chamber assay. This set-up consists an insert which separates the wells of a multiwell plate into top and bottom compartments. Cells whose migration is to be studied are seeded into the top compartment and the chemoattractant...
10:41
An Organotypic Slice Assay for High-Resolution Time-Lapse Imaging of Neuronal Migration in the Postnatal Brain
0 Views •
Cited by 6 •
2010
This protocol describes an organotypic slice assay optimized for the postnatal brain and high-resolution time-lapse imaging of neuroblast migration in the rostral migratory stream.
09:55
In vitro Cell Migration and Invasion Assays
0 Views •
Cited by 627 •
2014
Commonly used, highly accessible methods for examining cell migration and invasion in vitro are described. The first method is the cell wound closure assay that measures cell motility. The second method is the transwell migration and invasion assay that assesses the chemotactic and invasive capacity of cells.
09:07
Genetic Manipulation of Cerebellar Granule Neurons In Vitro and In Vivo to Study Neuronal Morphology and Migration
0 Views •
Cited by 8 •
2014
Neuronal morphogenesis and migration are crucial events underlying proper brain development. Here, we describe methods to genetically manipulate cultured cerebellar granule neurons and the developing cerebellum for the assessment of morphology and migratory characteristics of neurons.
10:00
Assaying DNA Damage in Hippocampal Neurons Using the Comet Assay
0 Views •
Cited by 21 •
2012
The comet assay is an efficient way of detecting single- and double-strand breaks, including alkali-labile sites and DNA-DNA/DNA-protein cross-links on the DNA in all cells including hippocampal neurons. The method takes advantage of the differential migration of DNA in an electric field due to differences in amount of DNA damage.
FAQs
Assay design determines which aspect of movement becomes most visible. An adhesive substrate supports observation of movement across a surface, whereas a porous membrane emphasizes passage through a barrier. This distinction affects whether the main outcome reflects movement distance, speed, direction, or the number of cells that successfully cross the membrane.
Guidance cues provide extracellular signals that can alter how neuronal cells move through the assay environment. Their effects may appear as changes in migration speed, travel distance, directional behavior, or barrier crossing. Comparing movement with and without a cue helps distinguish baseline motility from migration that reflects a cellular response to external signaling.
Intrinsic motility describes a cell's capacity to move, while cue-driven migration reflects how that movement changes in response to extracellular signals. Separating these influences helps researchers determine whether a gene, drug, or injury-related condition changes basic cell movement or modifies the way cells interpret environmental guidance. This distinction improves interpretation of neuronal behavior.
Quantitative analysis can focus on several complementary outcomes: distance traveled, movement speed, direction, or the number of cells crossing a defined barrier. Each measurement answers a different question. Distance and speed describe motility, direction indicates guidance behavior, and crossing counts summarize how effectively a population passes through the assay environment.
A comparison begins by placing neuronal or neuronal cells in a defined environment, using either an adhesive substrate or a porous membrane. Researchers then expose the cells to the condition or signal of interest and quantify movement with an appropriate measure, such as distance, speed, direction, or barrier crossing. Results are compared across experimental conditions.
An adhesive substrate is useful when the study emphasizes movement across a surface and allows analysis of how far, how fast, or in what direction cells travel. A porous membrane is more appropriate when the question centers on passage through a barrier and the number of cells that complete that crossing. The choice should match the intended outcome.
In neuroscience, these assays support investigations of neural development, brain disorders, regeneration, and possible therapeutic strategies. Researchers can examine how genes, drugs, extracellular signals, or injury-related conditions alter neuronal movement. The resulting comparisons help connect cellular migration behavior with processes relevant to nervous system formation, damage, and repair.
Changes in migration measurements can indicate how injury-related conditions influence neuronal motility or responsiveness to environmental signals. Reduced or enhanced distance, speed, directionality, or barrier crossing provides a measurable cellular outcome for comparison. These data can contribute to studies of nervous system repair and help evaluate conditions or interventions relevant to regeneration.