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Related Experiment Video

Updated: May 15, 2026

Dissection and Culture of Mouse Embryonic Kidney

Dissection and Culture of Mouse Embryonic Kidney

Published on: May 17, 2017

Reelin induces EphB activation.

Elisabeth Bouché¹, Mario I Romero-Ortega, Mark Henkemeyer

¹Center for Neuroscience, Albert-Ludwigs-University, Albertstrasse 23, D-79104 Freiburg, Germany.

|January 16, 2013

Summary

This summary is machine-generated.

Reelin signaling interacts with EphB tyrosine kinases to guide neuron positioning during brain development. This novel pathway, independent of classical Reelin receptors, impacts neuronal migration and hippocampal development.

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Published on: June 19, 2016

Area of Science:

Neuroscience
Molecular Biology
Developmental Biology

Background:

Neuronal integration requires cell migration, process growth, and synapse formation.
Reelin glycoprotein is crucial for neuronal positioning, synaptic plasticity, learning, and memory.
Reelin signals through ApoER2 and VLDL receptors, activating Disabled-1 and cytoskeletal changes.

Purpose of the Study:

To investigate potential interactions between Reelin signaling and other receptor-mediated cascades.
To explore the role of EphB tyrosine kinases in Reelin-mediated brain development and plasticity.

Main Methods:

Biochemical assays to detect Reelin binding to EphB receptors.
Functional studies in neurons to assess EphB forward signaling activation.
Analysis of neuronal positioning defects in EphB-deficient mice.

Main Results:

Reelin directly binds to the extracellular domains of EphB transmembrane proteins.
This binding induces EphB receptor clustering and activates EphB forward signaling independently of ApoER2/VLDLR.
Mice lacking EphB1 and EphB2 exhibit CA3 hippocampal neuron positioning defects, similar to Reelin-deficient mice.
These migration defects are dependent on EphB kinase activity.

Conclusions:

Reelin signaling integrates with EphB forward signaling pathways.
EphB tyrosine kinases play a significant role in Reelin-dependent neuronal migration.
This study reveals a novel mechanism coordinating brain development and plasticity.