PUBLICATION

Ikk2 regulates cytokinesis during vertebrate development

Authors
Shen, H., Shin, E.M., Lee, S., Mathavan, S., Koh, H., Osato, M., Choi, H., Tergaonkar, V., Korzh, V.
ID
ZDB-PUB-170817-11
Date
2017
Source
Scientific Reports   7: 8094 (Journal)
Registered Authors
Korzh, Vladimir, Mathavan, S., Shen, Hongyuan
Keywords
Development, Zebrafish
Datasets
GEO:GSE90971
MeSH Terms
  • Animals
  • Animals, Genetically Modified/metabolism
  • Animals, Genetically Modified/physiology
  • Cell Division/physiology
  • Cell Proliferation/physiology
  • Cytokinesis/physiology*
  • Embryonic Development/physiology*
  • Female
  • Gene Expression Regulation, Developmental/physiology
  • I-kappa B Kinase/metabolism*
  • NF-kappa B/metabolism
  • Phosphorylation/physiology
  • Signal Transduction/physiology
  • Vertebrates/metabolism*
  • Vertebrates/physiology*
  • Zebrafish
PubMed
28808254 Full text @ Sci. Rep.
Abstract
NFκB signaling has a pivotal role in regulation of development, innate immunity, and inflammation. Ikk2 is one of the two critical kinases that regulate the NFκB signaling pathway. While the role of Ikk2 in immunity, inflammation and oncogenesis has received attention, an understanding of the role of Ikk2 in vertebrate development has been compounded by the embryonic lethality seen in mice lacking Ikk2. We find that despite abnormal angiogenesis in IKK2 zygotic mutants of zebrafish, the maternal activity of Ikk2 supports embryogenesis and maturation of fertile animals and allows to study the role of IKK2 in development. Maternal-zygotic ikk2 mutants represent the first vertebrates globally devoid of maternal and zygotic Ikk2 activity. They are defective in cell proliferation as evidenced by abnormal cytokinesis, nuclear enlargement and syncytialisation of a significant portion of blastoderm. We further document that reduced phosphorylation of Aurora A by Ikk2 could underlie the basis of these defects in cell division.
Genes / Markers
Figures
Figure Gallery
Expression
Phenotype
Mutation and Transgenics
Human Disease / Model Data
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Errata and Notes