Tissue factor and tumor: clinical and laboratory aspects

Area of Science:

• Oncology
• Molecular Biology
• Pathophysiology

Background:

• Tissue factor (TF) is a transmembrane protein with constitutive and stimulated expression patterns.
• Historically, TF's primary role was recognized in initiating coagulation.
• Emerging evidence highlights TF's involvement in non-hemostatic physiological and pathological processes.

Purpose of the Study:

• To review and summarize data on the role of TF in tumor development, metastasis, and angiogenesis.
• To explore TF's function beyond hemostasis in pathological contexts.
• To elucidate TF's contribution to cancer progression.

Main Methods:

• Review of existing scientific literature and data.
• Immunohistochemical analysis of TF expression in various human tumors.
• Correlation analysis between TF expression, microvessel density, and VEGF levels.

Main Results:

• TF expression is upregulated in tumor tissues, found in malignant cells, tumor-infiltrating macrophages, and endothelial cells.
• Abnormal TF expression promotes angiogenesis by altering the balance of angiogenic factors.
• Elevated TF expression correlates significantly with increased microvessel density and VEGF, supporting its role in tumor angiogenesis.
• TF influences metastasis through angiogenic effects and by promoting growth factor and adhesion protein production.

Conclusions:

• TF is a key player in tumor angiogenesis and metastasis.
• TF's multifaceted roles extend beyond coagulation into cancer progression.
• Targeting TF may offer therapeutic strategies for cancer treatment.