ZFIN ID: ZDB-PUB-200108-24
march5 Governs the Convergence and Extension Movement for Organization of the Telencephalon and Diencephalon in Zebrafish Embryos
Jung, J., Choi, I., Ro, H., Huh, T.L., Choe, J., Rhee, M.
Date: 2020
Source: Molecules and cells   43(1): 76-85 (Journal)
Registered Authors: Huh, Tae-Lin, Ro, Hyunju
Keywords: March5/MITOL, convergence and extension movement, diencephalon, telencephalon, ubiquitin proteasome system
MeSH Terms:
  • Animals
  • Central Nervous System/physiology*
  • Diencephalon/embryology*
  • Embryonic Development
  • Gene Knockdown Techniques
  • HEK293 Cells
  • Homeostasis
  • Humans
  • Mitochondria/metabolism*
  • Telencephalon/embryology*
  • Ubiquitin-Protein Ligases/genetics
  • Ubiquitin-Protein Ligases/metabolism*
  • Ubiquitination
  • Zebrafish/embryology*
  • Zebrafish Proteins/genetics
  • Zebrafish Proteins/metabolism*
PubMed: 31910335 Full text @ Mol. Cells
MARCH5 is a RING finger E3 ligase involved in mitochondrial integrity, cellular protein homeostasis, and the regulation of mitochondrial fusion and fission. To determine the function of MARCH5 during development, we assessed transcript expression in zebrafish embryos. We found that march5 transcripts were of maternal origin and evenly distributed at the 1-cell stage, except for the mid-blastula transition, with expression predominantly in the developing central nervous system at later stages of embryogenesis. Overexpression of march5 impaired convergent extension movement during gastrulation, resulting in reduced patterning along the dorsoventral axis and alterations in the ventral cell types. Overexpression and knockdown of march5 disrupted the organization of the developing telencephalon and diencephalon. Lastly, we found that the transcription of march5 was tightly regulated by the transcriptional regulators CHOP, C/EBPα, Staf, Znf143a, and Znf76. These results demonstrate the essential role of March5 in the development of zebrafish embryos.