Mechanical homeostasis of liver sinusoid is involved in the initiation and termination of liver regeneration

Commun Biol. 2021 Apr 7;4(1):409. doi: 10.1038/s42003-021-01936-2.

Abstract

Organogenesis and regeneration are fundamental for developmental progress and are associated with morphogenesis, size control and functional properties for whole-body homeostasis. The liver plays an essential role in maintaining homeostasis of the entire body through various functions, including metabolic functions, detoxification, and production of bile, via the three-dimensional spatial arrangement of hepatic lobules and has high regenerative capacity. The regeneration occurs as hypertrophy, which strictly controls the size and lobule structure. In this study, we established a three-dimensional sinusoidal network analysis method and determined valuable parameters after partial hepatectomy by comparison to the static phase of the liver. We found that mechanical homeostasis, which is crucial for organ morphogenesis and functions in various phenomena, plays essential roles in liver regeneration for both initiation and termination of liver regeneration, which is regulated by cytokine networks. Mechanical homeostasis plays critical roles in the initiation and termination of organogenesis, tissue repair and organ regeneration in coordination with cytokine networks.

Publication types

  • Research Support, Non-U.S. Gov't
  • Video-Audio Media

MeSH terms

  • Animals
  • Capillaries / metabolism
  • Capillaries / pathology*
  • Capillaries / surgery
  • Cell Proliferation*
  • Cells, Cultured
  • Cytokines / metabolism
  • Endothelial Cells / metabolism
  • Endothelial Cells / pathology*
  • Extracellular Signal-Regulated MAP Kinases / metabolism
  • Hepatectomy
  • Hepatocytes / metabolism
  • Hepatocytes / pathology*
  • Homeostasis
  • Human Umbilical Vein Endothelial Cells / metabolism
  • Human Umbilical Vein Endothelial Cells / pathology
  • Humans
  • Liver / blood supply*
  • Liver / metabolism
  • Liver / pathology*
  • Liver / surgery
  • Liver Circulation
  • Liver Regeneration*
  • Male
  • Mechanotransduction, Cellular
  • Mice
  • Mice, Inbred C57BL
  • Rats
  • Rats, Wistar
  • Receptors, G-Protein-Coupled / metabolism

Substances

  • Cytokines
  • Receptors, G-Protein-Coupled
  • Extracellular Signal-Regulated MAP Kinases