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2015•Development Growth & DifferentiationRequires access

Engrailed and tectum development

Minoru Omi, Harukazu Nakamura

Open publisher page 13 citations

Abstract

The optic tectum is a visual center of nonmammalian vertebrates derived from the mesencephalon. In this review, function of Engrailed (En) in tectum development is reviewed. En plays crucial roles at three steps of tectum development. First, Engrailed is expressed in the mesencephalon and the metencephalon and essential for the regionalization of the mesencephalon. En is expressed in a gradient of caudal-to-rostral in the tectum primordial, and regulates the rostrocaudal polarity of the tectum. In the advanced stage of tectum development, En is expressed in a lamina-specific manner and it is suggested that En regulates cell migration in the tectal laminar formation.

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What this paper is about

The optic tectum is a visual center of nonmammalian vertebrates derived from the mesencephalon. In this review, function of Engrailed (En) in tectum development is reviewed. En plays crucial roles at three steps of tectum development. First, Engrailed is expressed in the mesencephalon and the metencephalon and essential for the regionalization of the mesencephalon. En is expressed in a gradient of caudal-to-rostral in the tectum primordial, and regulates the rostrocaudal polarity of the tectum. In the advanced stage of tectum development, En is expressed in a lamina-specific manner and it is suggested that En regulates cell migration in the tectal laminar formation.

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Available abstract

The optic tectum is a visual center of nonmammalian vertebrates derived from the mesencephalon. In this review, function of Engrailed (En) in tectum development is reviewed. En plays crucial roles at three steps of tectum development. First, Engrailed is expressed in the mesencephalon and the metencephalon and essential for the regionalization of the mesencephalon. En is expressed in a gradient of caudal-to-rostral in the tectum primordial, and regulates the rostrocaudal polarity of the tectum. In the advanced stage of tectum development, En is expressed in a lamina-specific manner and it is suggested that En regulates cell migration in the tectal laminar formation.

Key concepts: Tectum, Midbrain, engrailed, Neuroscience, Biology, Laminar organization, Tegmentum, Optic tectum

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