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Related Concept Videos

Determination01:51

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During embryogenesis, cells become progressively committed to different fates through a two-step process: specification followed by determination. Specification is demonstrated by removing a segment of an early embryo, “neutrally” culturing the tissue in vitro—for example, in a petri dish with simple medium—and then observing the derivatives. If the cultured region gives rise to cell types that it would normally generate in the embryo, this means that it is specified. In...
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The cerebellum, also known as the "little brain," is located in the posterior cranial fossa, inferior to the tentorium cerebelli and dorsal to the brainstem. It plays a significant role in motor control, coordination, and proprioception.
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How does a complex organism such as a human develop from a single cell? It all starts from a single fertilized egg which gives rise to a vast array of cell types, such as nerve cells, muscle cells, and epithelial cells that characterize the adult? Throughout development and adulthood, cellular differentiation leads cells to assume their final morphology and physiology. Differentiation is the process by which unspecialized cells become specialized to carry out distinct functions.
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Neurulation is the embryological process which forms the precursors of the central nervous system and occurs after gastrulation has established the three primary cell layers of the embryo: ectoderm, mesoderm, and endoderm. In humans, the majority of this system is formed via primary neurulation, in which the central portion of the ectoderm—originally appearing as a flat sheet of cells—folds upwards and inwards, sealing off to form a hollow neural tube. As development proceeds, the...
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Related Experiment Video

Updated: Apr 18, 2026

Ex Vivo Culture of Chick Cerebellar Slices and Spatially Targeted Electroporation of Granule Cell Precursors
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Cellular commitment in the developing cerebellum.

Hassan Marzban1, Marc R Del Bigio2, Javad Alizadeh1

  • 1Department of Human Anatomy and Cell Science, University of Manitoba Winnipeg, MB, Canada.

Frontiers in Cellular Neuroscience
|January 29, 2015
PubMed
Summary

This review details cerebellar development, covering its anatomy, cell types, and gene expression. It explores apoptosis, autophagy, and epigenetic factors in cerebellar organization and neurodegeneration.

Keywords:
DNA methylationagingapoptosisautophagybrain developmentcerebellum structureepigenetics

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Area of Science:

  • Neuroscience
  • Developmental Biology

Background:

  • The cerebellum, located in the posterior cranial fossa, is vital for motor control and non-motor functions.
  • Its development involves complex molecular events governing neurogenesis and cell fate decisions.
  • The cerebellum possesses a distinct three-layered cortical structure.

Purpose of the Study:

  • To review the anatomical structure of human and mouse cerebellum.
  • To discuss cellular composition and gene expression during cerebellar development.
  • To explore roles of apoptosis, autophagy, unfolded protein response, and epigenetics in cerebellar function and disease.

Main Methods:

  • Literature review of cerebellar anatomy, development, and molecular mechanisms.
  • Analysis of gene expression programs and cell fate commitments.
  • Discussion of cell death processes (apoptosis, autophagy) and epigenetic modifications (DNA methylation, microRNAs).

Main Results:

  • Apoptosis affects approximately 5% of cerebellar cells, primarily post-mitosis.
  • Apoptosis and autophagy are significant in cerebellar development and organization.
  • Epigenetic factors like DNA methylation and microRNAs may link to neurodegeneration and aging.

Conclusions:

  • Cerebellar development is a tightly regulated process involving genetic and molecular pathways.
  • Cell death and epigenetic regulation are crucial for cerebellar organization and may influence neurodegenerative diseases.
  • Understanding these mechanisms offers insights into cerebellar dysfunction and aging.