Math1 is essential for genesis of cerebellar granule neurons

Nissim Ben-Arie, Hugo J. Bellen, Dawna L. Armstrong, Alanna E. McCall, Polina R. Gordadze, Qiuxia Guo, Martin M. Matzuk, Huda Y. Zoghbi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

576 Scopus citations

Abstract

The cerebellum is essential for fine motor control of movement and posture, and its dysfunction disrupts balance and impairs control of speech, limb and eye movements. The developing cerebellum consists mainly of three types of neuronal cells: granule cells in the external germinal layer, Purkinje cells, and neurons of the deep nuclei. The molecular mechanisms that underlie the specific determination and the differentiation of each of these neuronal subtypes age unknown. Math1 (refs 2, 3), the mouse homologue of the Drosophila gene atonal, encodes a basic helix-loop-helix transcription factor that is specifically expressed in the precursors of the external germinal layer and their derivatives. Here we report that mice lacking Math1 fail to form granule cells and are born with a cerebellum that is devoid of an external germinal layer. To our knowledge, Math1 is the first gene to be shown to be required in vivo for the genesis of granule cells, and hence the predominant neuronal population in the cerebellum.

Original languageAmerican English
Pages (from-to)169-172
Number of pages4
JournalNature
Volume390
Issue number6656
DOIs
StatePublished - 13 Nov 1997
Externally publishedYes

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