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Updated: Jun 22, 2026
10:25
Time-lapse Imaging of Neuroblast Migration in Acute Slices of the Adult Mouse Forebrain
Published on: September 12, 2012
Gap junctions are involved in cell migration in the early postnatal subventricular zone
Mônica Marins1, Anna L R Xavier, Nathan B Viana
1Laboratório de Neuroanatomia Celular, Programa de Anatomia, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, RJ, Brazil.
Developmental Neurobiology
|July 1, 2009
Summary
Gap junctional communication (GJC) positively influences neuroblast migration in the postnatal subventricular zone (SVZ) and rostral migratory stream (RMS). Pharmacological uncouplers reversibly inhibited this crucial cell movement.
Area of Science:
- Neuroscience
- Cell Biology
- Developmental Biology
Background:
- The migration of neuroblasts via the rostral migratory stream (RMS) from the subventricular zone (SVZ) is essential for postnatal brain development.
- The molecular mechanisms governing this extensive cell migration remain incompletely understood.
Purpose of the Study:
- To investigate the role of gap junctional communication (GJC) in the centrifugal migration of neuroblasts from postnatal rat SVZ/RMS explants.
Main Methods:
- Utilized SVZ/RMS explants from early postnatal (P4) rats.
- Assessed cell coupling and connexin expression (Cx 43, Cx 45).
- Applied pharmacological gap junction uncouplers (carbenoxolone) and time-lapse video microscopy.
Main Results:
- Cells in SVZ/RMS explants exhibited dye-coupling, indicating functional GJC.
- Carbenoxolone treatment reversibly reduced outgrowth from SVZ explants.
- Pharmacological uncouplers caused an abrupt, reversible arrest of cell migration.
Conclusions:
- Gap junctional communication (GJC) plays a positive role in neuroblast migration within the SVZ/RMS.
- Targeting GJC may offer new avenues for understanding or modulating neurodevelopmental processes.
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