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Sensing extracellular matrix: an update on discoidin domain receptor function.

Wolfgang F Vogel1, Rahim Abdulhussein, Caroline E Ford

  • 1Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario Canada, M5S 1A8. w.vogel@utoronto.ca

Cellular Signalling
|April 22, 2006
PubMed
Summary

Discoidin Domain Receptors (DDRs) are collagen receptors regulating cell functions. This review explores DDR signaling, their role in diseases like cancer and fibrosis, and conserved functions across species.

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Area of Science:

  • Molecular Biology
  • Cell Biology
  • Biochemistry

Background:

  • Discoidin Domain Receptors (DDRs) are tyrosine kinase receptors.
  • They function as non-integrin collagen receptors.
  • DDRs are involved in cell adhesion, proliferation, and matrix remodeling.

Purpose of the Study:

  • To review signaling pathways and cellular responses of activated DDRs.
  • To provide an overview of DDRs' roles in human diseases.
  • To discuss conserved functions of DDR-related genes in invertebrates.

Main Methods:

  • Literature review of signaling pathways.
  • Analysis of DDR involvement in human diseases.
  • Comparative genomics of DDR-related genes across species.

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Main Results:

  • Activated DDRs trigger diverse signaling cascades and cellular responses.
  • DDRs play significant roles in tumor progression, atherosclerosis, inflammation, and fibrosis.
  • Homologous DDR genes in invertebrates suggest conserved collagen-binding functions.

Conclusions:

  • DDRs are crucial regulators of cellular processes and disease pathogenesis.
  • The evolutionary conservation of DDRs highlights their fundamental biological importance.
  • Further research into these unusual collagen receptors is warranted across multiple fields.