Journal
CANCER MEDICINE
Volume -, Issue -, Pages -Publisher
WILEY
DOI: 10.1002/cam4.6332
Keywords
coagulation factors; colorectal cancer; migration; proliferation
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In this study, we investigated the effects of clotting factors on proliferation and migration in colorectal cancer cell lines. We also examined whether their direct inhibitors could attenuate these effects.
Background/Aim: Clotting factors promote cancer development. We investigated if coagulation proteins promote proliferation and migration in colorectal cancer (CRC) cell lines and whether their direct inhibitors can attenuate these effects. Materials and Methods: DLD-1 and SW620 cells were treated with tissue factor (0, 50, 100 and 500 pg/mL +/- 10 mu g/mL 10H10 [anti-tissue factor antibody]), thrombin (0.0, 0.1, 1.0 and 10.0 U/mL +/- 0.5 mu M dabigatran [thrombin inhibitor]) and Factor Xa, FXa (0.0, 0.1, 1.0 and 10.0 U/mL +/- 100 ng/mL rivaroxaban [FXa inhibitor]) and their effects on proliferation and migration were quantified using the PrestoBlue((R)) and transwell migration assays, respectively. Results: Thrombin increased proliferation from 48 h treatment compared to its control (48 h 6.57 +/- 1.36 u vs. 2.42 +/- 0.13 u, p = 0.001, 72 h 9.50 +/- 1.54 u vs. 4.50 +/- 0.47 u, p = 0.004 and 96 h 10.77 +/- 1.72 u vs. 5.57 +/- 0.25 u, p = 0.008). This increase in proliferation was attenuated by dabigatran at 72 h (2.23 +/- 0.16 u vs. 3.26 +/- 0.43 u, p = 0.04). Tissue factor (0 pg/mL 20.7 +/- 1.6 cells/view vs. 50 pg/mL 32.4 +/- 1.9 cells/view, p = 0.0002), FXa (0.0 U/mL 8.9 +/- 1.1 cells/view vs. 10.0 U/mL 17.7 +/- 1.7 cells/view, p < 0.0001) and thrombin (0.0 U/mL 8.9 +/- 1.3 cells/view vs. 10.0 U/mL 20.2 +/- 2.0 cells/view, p < 0.0001) all increased migration compared to their controls. However, their direct inhibitors did not attenuate these increases. Conclusion: Thrombin, FXa and TF all increase migration in CRC in vitro. Thrombin induced increase in proliferation is abrogated by dabigatran. Dabigatran may have potential as an anti-cancer therapy in CRC.
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