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Vital dye analysis of cranial neural crest cell migration in the mouse embryo

Serbedzija, George N. and Fraser, Scott E. and Bronner-Fraser, Marianne (1992) Vital dye analysis of cranial neural crest cell migration in the mouse embryo. Development, 116 (2). pp. 297-307. ISSN 0950-1991.

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The spatial and temporal aspects of cranial neural crest cell migration in the mouse are poorly understood because of technical limitations. No reliable cell markers are available and vital staining of embryos in culture has had limited success because they develop normally for only 24 hours. Here, we circumvent these problems by combining vital dye labelling with exo utero embryological techniques. To define better the nature of cranial neural crest cell migration in the mouse embryo, premigratory cranial neural crest cells were labelled by injecting DiI into the amniotic cavity on embryonic day 8. Embryos, allowed to develop an additional 1 to 5 days exo utero in the mother before analysis, showed distinct and characteristic patterns of cranial neural crest cell migration at the different axial levels. Neural crest cells arising at the level of the forebrain migrated ventrally in a contiguous stream through the mesenchyme between the eye and the diencephalon. In the region of the midbrain, the cells migrated ventrolaterally as dispersed cells through the mesenchyme bordered by the lateral surface of the mesencephalon and the ectoderm. At the level of the hindbrain, neural crest cells migrated ventrolaterally in three subectodermal streams that were segmentally distributed. Each stream extended from the dorsal portion of the neural tube into the distal portion of the adjacent branchial arch. The order in which cranial neural crest cells populate their derivatives was determined by labelling embryos at different stages of development. Cranial neural crest cells populated their derivatives in a ventral-to-dorsal order, similar to the pattern observed at trunk levels. In order to confirm and extend the findings obtained with exo utero embryos, DiI (1,1-dioctadecyl-3,3,3′,3′-tetramethylindo-carbocyanine perchlorate) was applied focally to the neural folds of embryos, which were then cultured for 24 hours. Because the culture technique permitted increased control of the timing and location of the DiI injection, it was possible to determine the duration of cranial neural crest cell emigration from the neural tube. Cranial neural crest cell emigration from the neural folds was completed by the 11-somite stage in the region of the rostral hindbrain, the 14-somite stage in the regions of the midbrain and caudal hindbrain and not until the 16-somite stage in the region of the forebrain. At each level, the time between the earliest and latest neural crest cells to emigrate from the neural tube appeared to be 9 hours.

Item Type:Article
Related URLs:
URLURL TypeDescription
Fraser, Scott E.0000-0002-5377-0223
Bronner-Fraser, Marianne0000-0003-4274-1862
Additional Information:© 1992 The Company of Biologists Limited. Accepted 24 June 1992.
Subject Keywords:cell migration, cranial, DiI, mouse, neural crest
Issue or Number:2
Record Number:CaltechAUTHORS:20120322-125843475
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:29810
Deposited By: Tony Diaz
Deposited On:17 Apr 2012 22:23
Last Modified:03 Oct 2019 03:44

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