Engrailed Homeobox Genes Regulate Establishment of the Cerebellar Afferent Circuit Map

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Engrailed homeobox genes regulate establishment of the cerebellar afferent circuit map.

The spatial organization of the cerebellar afferent map has remarkable correspondence to two aspects of intrinsic patterning within the cerebellum embodied by a series of lobules and Purkinje cell (PC)-striped gene expression. Using male and female mice, we tested whether the Engrailed (En) homeobox genes are a common genetic substrate regulating all three systems, since they are expressed in s...

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Homeobox Genes and the Homeobox

Most homeobox [5] genes [4] contain a 180-base-pair region called a homeodomain [6]. The homeodomain [6] portion of the protein transcript has been shown to interact with DNA in a cisregulatory fashion during the critical stages of early body plan specification and embryogenesis [7]. These sorts of interactions demonstrate the importance of regulatory genes [4] and their architectural role in t...

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Homeobox genes Gsx1 and Gsx2 differentially regulate telencephalic progenitor maturation.

Homeobox genes Gsx1 and Gsx2 (formerly Gsh1 and Gsh2) are among the earliest transcription factors expressed in neuronal progenitors of the lateral ganglionic eminence (LGE) in the ventral telencephalon. Gsx2 is required for the early specification of LGE progenitor cells and recently has been shown to specify different LGE neuronal subtypes at distinct time points. In Gsx2 mutants, Gsx1 compen...

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The Engrailed homeobox genes determine the different foliation patterns in the vermis and hemispheres of the mammalian cerebellum.

Little is known about the genetic pathways and cellular processes responsible for regional differences in cerebellum foliation, which interestingly are accompanied by regionally distinct afferent circuitry. We have identified the Engrailed (En) homeobox genes as being crucial to producing the distinct medial vermis and lateral hemisphere foliation patterns in mammalian cerebella. By producing a...

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Underlying the seemingly uniform cellular composition of the adult mammalian cerebellum (Cb) are striking parasagittal stripes of gene expression along the medial-lateral (ML) axis that are organized with respect to the lobules that divide the Cb along the anterior-posterior (AP) axis. Although there is a clear correlation between the organization of gene expression stripes and Cb activity patt...

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ژورنال

عنوان ژورنال: Journal of Neuroscience

سال: 2010

ISSN: 0270-6474,1529-2401

DOI: 10.1523/jneurosci.0653-10.2010