Netrin1-DCC-Mediated Attraction Guides Post-Crossing Commissural Axons in the Hindbrain

Overview

Journal J Neurosci

Specialty Neurology

Date 2015 Aug 21

PMID 26290247

Citations 10

Authors

Farnaz Shoja-Taheri

Arielle DeMarco

Grant S Mastick

Affiliations

Soon will be listed here.

Abstract

Significance Statement: The left and right sides of the brainstem and spinal cord are connected primarily by axon fibers that grow across the ventral midline, and then away on the other side to their targets. Based on spinal cord, axons are initially attracted by diffusible attractive protein signals to approach and cross the midline, and then are thought to switch to repulsive cues to grow away on the opposite side. Our results in the hindbrain show that the major midline attractant, Netrin1, is not required for midline crossing. However, the post-crossing axons depend on Netrin1 attraction to set their proper trajectories on the other side. Overall, these findings suggest that commissural axons use distinct mechanisms to navigate in different CNS regions.

Citing Articles

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Axonal Projection Patterns of the Dorsal Interneuron Populations in the Embryonic Hindbrain.

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