Localization of PDGF A and PDGFR alpha mRNA in Xenopus embryos suggests signalling from neural ectoderm and pharyngeal endoderm to neural crest cells. Academic Article uri icon

Overview

abstract

  • In situ hybridization analysis of Xenopus laevis embryos reveals that mRNA encoding the platelet-derived growth factor alpha receptor (PDGFR alpha) is expressed in cephalic neural crest masses prior to migration from the future neural tube and during their migration into the visceral arches. The analysis of fluorescently labeled neural crest tissue transplanted to unlabeled host embryos demonstrates that neural crest cells are the only detectable source of PDGFR alpha mRNA within visceral arches. Transcripts encoding PDGF A are present in neural ectoderm, otic vesicle and pharyngeal endoderm. Their location suggests that PDGF A provides a signal, first from the neural epithelium and later from the otic vesicle and pharyngeal endoderm, to cephalic neural crest cells during their migration in the arch region.

publication date

  • December 1, 1994

Research

keywords

  • Embryo, Nonmammalian
  • Neural Crest
  • Platelet-Derived Growth Factor
  • RNA, Messenger
  • Receptors, Platelet-Derived Growth Factor
  • Signal Transduction

Identity

Scopus Document Identifier

  • 0028173197

Digital Object Identifier (DOI)

  • 10.1016/0925-4773(94)90057-4

PubMed ID

  • 7893600

Additional Document Info

volume

  • 48

issue

  • 3