KRAS-mutant colorectal cancer cell lines cause a prothrombotic state through the upregulation of thrombin: experimental study
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View abstract on PubMed
Summary
This summary is machine-generated.KRAS-mutant colorectal cancer cells increase platelet aggregation and thrombin expression, contributing to a prothrombotic state. This cellular hypercoagulability is linked to poor prognosis in colorectal cancer patients.
Area Of Science
- Oncology
- Hematology
- Molecular Biology
Background
- Colorectal cancer (CRC) prognosis is linked to KRAS genotype and a prothrombotic state.
- Hypercoagulability and cancer-related thrombosis are significant poor prognostic factors in CRC.
- Cellular-level confirmation of the KRAS-CRC prothrombotic correlation is lacking.
Purpose Of The Study
- To assess platelet aggregation rate induced by CRC cells with varying KRAS genotypes.
- To evaluate thrombin expression in CRC cells under different KRAS statuses.
- To explore the association between KRAS genotype and hypercoagulability at the cellular level.
Main Methods
- Platelet aggregation rate assays were performed.
- Western blotting analyzed thrombin expression.
- Four CRC cell lines (RKO, HCT116, SW480, SW620) with different KRAS genotypes were utilized.
- Tissue factor (FVIIa/TF) and thrombin inhibitors were used to investigate pathways.
Main Results
- KRAS-mutant CRC cells significantly increased maximal platelet aggregation (34.7%-63.8%).
- Metastatic SW620 cells showed higher aggregation rates than primary SW480 cells.
- RKO cells exhibited lower thrombin expression compared to other KRAS-mutant lines.
- Thrombin inhibitors more significantly reduced platelet aggregation in KRAS-mutant cells.
Conclusions
- KRAS-mutant CRC cell lines demonstrate increased hypercoagulability.
- Upregulated thrombin expression, primarily via the TF-thrombin pathway, drives this prothrombotic state.
- KRAS genotype influences cellular prothrombotic potential in colorectal cancer.
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