Development and developmental disorders of the human cerebellum

Hans J. Ten Donkelaar, Martin Lammens, Pieter Wesseling, Akira Hori

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

12 Citations (Scopus)

Abstract

The brain stem is composed of the midbrain (the mesencephalon) and the hindbrain (the rhombencephalon), and is, at least during development, segmentally organized. The midbrain is composed of two temporarily present segments known as mesomeres, whereas the hindbrain is composed of 8, and more recently of 12, rhombomeres. The cerebellum largely arises from the first rhombomere. The brain stem also contributes 10 of the 12 cranial nerves, III -XII. A great number of genes are involved in the proper development of the brain stem. The isthmus organizer regulates the early development of the mesencephalon and of the rostral part of the rhombencephalon. Each rhombomere is characterized by a unique combination of Hox genes, its Hox code. In mice, spontaneous and targeted (knockout) mutations in these genes result in specific, rhombomere-restricted disruptions in the development of motor nuclei of cranial nerves. Such a 'rhombomeropathy' has recently been described for the HOXA1 gene. In this chapter, patterning of the brain stem and its segmentation are discussed in Sect. 7.2, followed by an overview of the development and developmental disorders of the cranial nerves (Sect. 7.3). In Sect. 7.4, the development of the auditory system and some of its disorders are discussed. Clinical cases illustrate some major malformations.

Original languageEnglish
Title of host publicationClinical Neuroembryology
Subtitle of host publicationDevelopment and Developmental Disorders of the Human Central Nervous System
PublisherSpringer-Verlag Berlin Heidelberg
Pages371-420
Number of pages50
ISBN (Electronic)9783642546877
ISBN (Print)3642546862, 9783642546860
DOIs
Publication statusPublished - 1 Feb 2014
Externally publishedYes

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