PUBLICATION

Rear traction forces drive adherent tissue migration in vivo

Authors
Yamaguchi, N., Zhang, Z., Schneider, T., Wang, B., Panozzo, D., Knaut, H.
ID
ZDB-PUB-220216-26
Date
2022
Source
Nature cell biology   24: 194-204 (Journal)
Registered Authors
Knaut, Holger
Keywords
none
MeSH Terms
  • Actins/metabolism
  • Animals
  • Animals, Genetically Modified
  • Basement Membrane/metabolism
  • Basement Membrane/physiology*
  • Chemokine CXCL12/genetics
  • Chemokine CXCL12/metabolism
  • Chemotaxis*
  • Embryo, Nonmammalian/metabolism
  • Embryo, Nonmammalian/physiology*
  • Gene Expression Regulation, Developmental
  • Integrins/genetics
  • Integrins/metabolism
  • Mechanotransduction, Cellular*
  • Morphogenesis
  • Receptors, CXCR4/genetics
  • Receptors, CXCR4/metabolism
  • Stress, Mechanical
  • Talin/genetics
  • Talin/metabolism
  • Time Factors
  • Zebrafish/embryology
  • Zebrafish/genetics
  • Zebrafish Proteins/genetics
  • Zebrafish Proteins/metabolism
PubMed
35165417 Full text @ Nat. Cell Biol.
Abstract
During animal embryogenesis, homeostasis and disease, tissues push and pull on their surroundings to move forward. Although the force-generating machinery is known, it is unknown how tissues exert physical stresses on their substrate to generate motion in vivo. Here, we identify the force transmission machinery, the substrate and the stresses that a tissue, the zebrafish posterior lateral line primordium, generates during its migration. We find that the primordium couples actin flow through integrins to the basement membrane for forward movement. Talin- and integrin-mediated coupling is required for efficient migration, and its loss is partially compensated for by increased actin flow. Using Embryogram, an approach to measure stresses in vivo, we show that the rear of the primordium exerts higher stresses than the front, which suggests that this tissue pushes itself forward with its back. This unexpected strategy probably also underlies the motion of other tissues in animals.
Genes / Markers
Figures
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Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping