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Profibrinolytic Factors and Cancer Progression, Metastasis, and Survival
1Division of Hematology, Department of Medicine, UNC Blood Research Center, University of North Carolina at Chapel Hill.
Arteriosclerosis, Thrombosis, and Vascular Biology
|September 4, 2025
Summary
The fibrinolytic system, involved in blood clot breakdown, can promote cancer progression and metastasis. Key components like urokinase plasminogen activator (uPA) and its receptor (uPAR) drive tumor growth and spread.
Area of Science:
- Biochemistry
- Oncology
- Molecular Biology
Background:
- The fibrinolytic system primarily degrades fibrin clots.
- Aberrant activation of the fibrinolytic system is observed in cancer patients.
- This activation impacts cancer progression, metastasis, and survival.
Purpose of the Study:
- To investigate the role of the fibrinolytic system in cancer progression and metastasis.
- To elucidate the mechanisms by which fibrinolytic components influence tumor growth and spread.
Main Methods:
- Analysis of clinical data correlating plasma levels of fibrinolytic markers with cancer outcomes.
- Review of studies utilizing mouse models to assess the impact of fibrinolytic components on tumors.
Main Results:
- Elevated urokinase plasminogen activator (uPA) and its receptor (uPAR) correlate with cancer progression and metastasis in various cancers.
- Increased plasmin-α2-antiplasmin complexes are linked to reduced survival in certain cancers.
- Mouse models demonstrate that uPA, uPAR, tissue-type plasminogen activator (tPA), and plasmin contribute to tumor growth and metastasis.
Conclusions:
- The fibrinolytic system, through mediators like uPA, uPAR, tPA, and plasmin, actively promotes cancer progression.
- Mechanisms include activating signaling pathways, enhancing tumor cell migration via extracellular matrix degradation, and releasing growth factors.
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