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Updated: Mar 8, 2026

Visualizing Neuroblast Cytokinesis During C. elegans Embryogenesis
Published on: March 12, 2014
EZH2 orchestrates apicobasal polarity and neuroepithelial cell renewal
Naiara Akizu1, Marian A Martínez-Balbás1
1Department of Molecular Genomics, Instituto de Biología Molecular de Barcelona (IBMB), Consejo Superior de Investigaciones Científicas (CSIC) , Barcelona, Spain.
Abstract:
During early stages of neural development, neuroepithelial cells translocate their nuclei along the apicobasal axis in a harmonized manner with the cell cycle. How cell cycle progression and neuroepithelium polarity are coordinated remains unclear. It has been proposed that developmental cues, epigenetic mechanisms and cell cycle regulators must be linked in order to orchestrate these processes. We have recently discovered that a master epigenetic factor, EZH2 is essential to coordinate these events. EZH2 directly represses the cell cycle regulator p21 in the chicken spinal cord. By doing so, EZH2 controls neural progenitor cell renewal and fine-tunes Rho signaling pathway, which is essential to maintain neuroepithelial structure. Our findings point to a new role of EZH2 during development that could have potential implication in other areas as cancer.
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