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XB-ART-24947
Neuron April 1, 1991; 6 (4): 499-515.

Neuronal determination without cell division in Xenopus embryos.

Harris WA , Hartenstein V .


Abstract
Cell division in the Xenopus CNS was blocked by incubating embryos in a mixture of the DNA synthesis inhibitors hydroxyurea and aphidicolin. Surprisingly, embryos treated at the beginning of gastrulation proceeded normally through neurulation, neural tube closure, and CNS subdivision. Thus, cell division is not critical for neural induction or early morphogenetic events in the CNS. Neuroblasts in treated embryos differentiated into neurons of many classes, indicating that cellular determination in the CNS can be dissociated from lineage and birth date. Axonal tracts and embryonic reflexes also developed. The remarkable amount of normal CNS development that occurs in these animals may be explained by a series of sequential inductions that are largely independent of cell proliferation.

PubMed ID: 1901716
Article link: Neuron

Antibodies: Hspa5 Ab1 Ncam1 Ab2



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