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Neural Crest Cell Dynamics Revealed by Time-Lapse Video Microscopy of Whole Embryo Chick Explant Cultures

Kulesa, P. M. and Fraser, S. E. (1998) Neural Crest Cell Dynamics Revealed by Time-Lapse Video Microscopy of Whole Embryo Chick Explant Cultures. Developmental Biology, 204 (2). pp. 327-344. ISSN 0012-1606. doi:10.1006/dbio.1998.9082.

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DiI-labeled cranial neural crest cells were followed in whole embryo chick explant cultures using time-lapse confocal microscopy. Neural crest cells emerged along the dorsal midline of all rhombomeres. There was a small amount of mixing of neural crest cells between adjoining rhombomeres as cells emerged from the dorsal midline; this mixing persisted during their migration out of the neural tube. Neural crest cell-free zones lateral to rhombomere 3 (r3) and r5 resulted from neural crest cells migrating in either rostral or caudal directions to join other neural crest cells exiting adjacent to r2, r4, or r6. Neural crest cells migrated in a wide variety of individual cell behaviors, ranging from rapid unidirectional motion to stationary and even backward movement (toward the neural tube). Neural crest cells also migrated collectively, extending filipodia to form chain-like cell arrangements. In the midbrain and r1 region, many chains stretched from the dorsal midline to just beyond the lateral extent of the neural tube. In the r7 region, cells linked together and stretched laterally from the neural tube to other neural crest cells migrating into the third branchial arch. The unpredictable cell trajectories, the mixing of neural crest cells between adjoining rhombomeres, and the diversity in cell migration behavior within any particular region imply that no single mechanism guides migration. The regional differences in cell migration characteristics suggests that influential factors may vary spatially along the rostrocaudal axis in the head.

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Fraser, S. E.0000-0002-5377-0223
Additional Information:© 1998 Academic Press. Received 23 January 1998, Revised 1 September 1998, Accepted 2 September 1998, Available online 9 April 2002. We thank Mary Dickinson, Rusty Lansford, and David Crotty for helpful comments on the manuscript and Harvey Karten for the macros provided in NIH Image. This work was supported by NIH (AR-47671) and the Beckman Institute. P.M.K. thanks the Sloan Center for Theoretical Neurobiology at Caltech for its generous support.
Funding AgencyGrant Number
Caltech Beckman InstituteUNSPECIFIED
Caltech Sloan Center for Theoretical NeurobiologyUNSPECIFIED
Subject Keywords:neural crest; cell migration; rhombomeres; time-lapse imaging; chick
Issue or Number:2
Record Number:CaltechAUTHORS:20160322-112508738
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Official Citation:P.M Kulesa, S.E Fraser, Neural Crest Cell Dynamics Revealed by Time-Lapse Video Microscopy of Whole Embryo Chick Explant Cultures, Developmental Biology, Volume 204, Issue 2, 15 December 1998, Pages 327-344, ISSN 0012-1606, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:65591
Deposited By: Ruth Sustaita
Deposited On:22 Mar 2016 20:22
Last Modified:10 Nov 2021 23:47

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