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Published February 16, 1996 | public
Journal Article

Chain Migration of Neuronal Precursors

Abstract

In the brain of adult mice, cells that divide in the subventricular zone of the lateral ventricle migrate up to 5 millimeters to the olfactory bulb where they differentiate into neurons. These migrating cells were found to move as chains through a well-defined pathway, the rostral migratory stream. Electron microscopic analysis of serial sections showed that these chains contained only closely apposed, elongated neuroblasts connected by membrane specializations. A second cell type, which contained glial fibrillary acidic protein, ensheathed the chains of migrating neuroblasts. Thus, during chain migration, neural precursors moved associated with each other and were not guided by radial glial or axonal fibers.

Additional Information

© 1996 American Association for the Advancement of Science. Received 13 September 1995; accepted 21 November 1995. We thank F. Nottebohm, E. Font, and F. Doetsch for critically reading the manuscript, G. Rougon for antibodies to PSA-N-CAM, and E. Sphicas for help with postembedding immunocytochemistry. Supported by NIH grants NS28478 and HD32116 to A.A.B, and DGICYT PB91-0643 (Spain) to J.-M.G.-V. C.L. is a recipient of a La Caixa Foundation graduate program fellowship.

Additional details

Created:
August 20, 2023
Modified:
October 18, 2023