ADAM10 controls collagen signaling and cell migration on collagen by shedding the ectodomain of discoidin domain receptor 1 (DDR1)

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  • Yasuyuki Shitomi, Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Storbritannien
  • Ida B Thøgersen
  • Noriko Ito, Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Storbritannien
  • Birgit Leitinger, National Heart and Lung Institute, Imperial College London, Storbritannien
  • Jan Johannes Enghild
  • Yoshifumi Itoh, Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Storbritannien

Discoidin domain receptor 1 (DDR1) is a receptor tyrosine kinase that binds and transmits signals from various collagens in epithelial cells. However, how DDR1-dependent signaling is regulated has not been understood. Here we report that collagen binding induces ADAM10-dependent ectodomain shedding of DDR1. DDR1 shedding is not a result of an activation of its signaling pathway since DDR1 mutants defective in signaling were shed in an efficient manner. DDR1 and ADAM10 were found to be in a complex on the cell surface, but shedding did not occur unless collagen bound to DDR1. Using a shedding resistant DDR1 mutant, we found that ADAM10-dependent DDR1 shedding regulates the half-life of collagen-induced phosphorylation of the receptor. Our data also revealed that ADAM10 plays an important role in regulating DDR1 mediated cell adhesion to achieve efficient cell migration on collagen matrices.

OriginalsprogEngelsk
TidsskriftMolecular Biology of the Cell
Vol/bind26
Nummer4
Sider (fra-til)659-673
Antal sider15
ISSN1059-1524
DOI
StatusUdgivet - 2015

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