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Coagulation factor Xa inhibits cancer cell migration via protease-activated receptor-1 activation

Keren Borensztajn1, Maarten F Bijlsma, Pieter H Reitsma

  • 1Department of Cell Biology, University of Groningen, Groningen, The Netherlands. K.S.Borensztajn@amc.uva.nl

Thrombosis Research
|March 3, 2009
PubMed

Insights

Coagulation factor Xa (FXa) unexpectedly inhibits cancer cell migration and invasion. This FXa-mediated effect is specific, dose-dependent, and acts via protease-activated receptor-1 (PAR-1) signaling.

Area of Science:

  • Biochemistry
  • Oncology
  • Cell Biology

Background:

  • Cell migration is crucial for physiological and pathological processes.
  • Cancer cell metastasis is linked to the coagulation cascade.
  • The role of coagulation factor Xa (FXa) in cancer cell migration is not well understood.

Purpose of the Study:

  • To investigate the effect of FXa on cancer cell migration and invasion.
  • To elucidate the signaling pathways involved in FXa-mediated regulation of cancer cell motility.

Main Methods:

  • Testing FXa on various cancer cell lines (breast, lung, colon).
  • Utilizing specific FXa and thrombin inhibitors (TAP, Hirudin).
  • Investigating FXa signaling via protease-activated receptor-1 (PAR-1) and G-alpha subunits.

Main Results:

  • FXa significantly reduced migration and invasion in breast, lung, and colon cancer cells.
  • The inhibitory effect was specific to FXa and dose-dependent.
  • FXa's action was mediated by PAR-1 signaling, independent of G-alpha subunits.

Conclusions:

  • FXa plays a significant, inhibitory role in cancer cell migration beyond its coagulation function.
  • PAR-1 acts as a key mediator in FXa's regulation of cancer cell motility, exhibiting a dual role in cancer biology.

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