Draxin, an axon guidance protein, affects chick trunk neural crest migration

Yuhong Su, Iftekhar B. Naser, Shahidul M. Islam, Sanbing Zhang, Giasuddin Ahmed, Sandy Chen, Yohei Shinmyo, Minoru Kawakami, Ken Ichi Yamamura, Hideaki Tanaka

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The neural crest is a multipotent population of migratory cells that arises in the central nervous system and subsequently migrates along defined stereotypic pathways. In the present work, we analyzed the role of a repulsive axon guidance protein, draxin, in the migration of neural crest cells. Draxin is expressed in the roof plate of the chick trunk spinal cord and around the early migration pathway of neural crest cells. Draxin modulates chick neural crest cell migration in vitro by reducing the polarization of these cells. When exposed to draxin, the velocity of migrating neural crest cells was reduced, and the cells changed direction so frequently that the net migration distance was also reduced. Overexpression of draxin also caused some early migrating neural crest cells to change direction to the dorsolateral pathway in the chick trunk region, presumably due to draxin's inhibitory activity. These results demonstrate that draxin, an axon guidance protein, can also affect trunk neural crest migration in the chick embryo.

Original languageEnglish (US)
Pages (from-to)787-796
Number of pages10
JournalDevelopment Growth and Differentiation
Volume51
Issue number9
DOIs
StatePublished - Dec 1 2009
Externally publishedYes

Keywords

  • Cytoskeleton
  • Draxin
  • Guidance cue
  • Inhibition
  • Neural crest migration

ASJC Scopus subject areas

  • Developmental Biology
  • Cell Biology

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