Plasminogen activators in ovarian tumours

Area of Science:

• Oncology
• Hematology
• Pathology

Background:

• Ovarian tumors represent a significant health concern.
• Understanding the local tumor microenvironment is crucial for diagnosis and treatment.
• Fibrinolysis plays a role in various physiological and pathological processes, including tumor growth.

Purpose of the Study:

• To investigate the local fibrinolytic activity within ovarian tumors.
• To determine the presence of fibrin/fibrinogen degradation products (FDP) in the serum of patients with ovarian tumors.
• To explore the correlation between tumor vascularity, fibrinolytic activity, and FDP levels.

Main Methods:

• Histochemical examination of ovarian tumors for fibrinolytic activity.
• Serum analysis for fibrin/fibrinogen degradation products (FDP).
• Correlation analysis between fibrinolytic activity, tumor vascularity, and FDP presence.

Main Results:

• Fibrinolytic activity was primarily localized to the vessels within both malignant and benign ovarian tumors.
• A strong correlation was observed between fibrinolytic activity and tumor vascularity.
• Fibrin/fibrinogen degradation products (FDP) were detected in the serum of 13 out of 14 patients with malignant tumors, but in none with benign tumors.

Conclusions:

• The presence of FDP in serum is significantly associated with malignant ovarian tumors.
• Invasive growth of malignant tumors may lead to the release of thromboplastic substances, fibrinolytic activators, or FDP into the bloodstream.
• Fibrinolytic activity and FDP detection may serve as potential biomarkers in distinguishing malignant from benign ovarian tumors.