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The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
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Visualizing Neuroblast Cytokinesis During C. elegans Embryogenesis
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Autism-associated ANK2 regulates embryonic neurodevelopment.

Shotaro Kawano1, Masayuki Baba2, Hotaka Fukushima1

  • 1Laboratory of Molecular Biology, Department of Bioscience, Graduate School of Life Sciences, Tokyo University of Agriculture, Tokyo, 156-8502, Japan.

Biochemical and Biophysical Research Communications
|March 21, 2022
PubMed
Summary
This summary is machine-generated.

Ankyrin 2 (ANK2) protein is crucial for brain development and may increase autism risk when its function is reduced. This study shows ANK2 regulates neural stem cell differentiation and migration in developing mouse brains.

Keywords:
ANK2Autism spectrum disorderIn utero electroporationNeural developmentNeural differentiationNeural stem cell

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Genetics

Background:

  • Autism spectrum disorder (ASD) pathogenesis is not fully understood, but impaired neural development is implicated.
  • ANK2, a gene linked to ASD, encodes a scaffolding protein vital for membrane protein organization.
  • The specific role of ANK2 in early brain development remains largely unknown.

Purpose of the Study:

  • To investigate the function of ANK2 in the developing mouse cerebral cortex.
  • To determine if ANK2 plays a role in neural stem cell differentiation and neuronal migration.

Main Methods:

  • Utilized in utero electroporation in developing mouse embryos.
  • Analyzed the expression of ANK2 in the embryonic cerebral cortex.
  • Performed knockdown of Ank2 to observe its effects on neural development.

Main Results:

  • ANK2 is highly expressed in the embryonic cerebral cortex.
  • ANK2 regulates neural stem cell differentiation and neuronal migration.
  • Ank2 knockdown altered the expression of key neural development genes.

Conclusions:

  • ANK2 plays a critical role in embryonic cerebral cortex development.
  • ANK2 haploinsufficiency may contribute to ASD risk by impairing neural development.
  • ANK2's function as a scaffolding protein offers new insights into ASD molecular pathogenesis.