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Thrombomodulin: an overview and potential implications in vascular disorders
1INSERM U 353, Institut d'Hématologie, Hôpital Saint-Louis, Paris, France. mc.boffa@chu-stlouis.fr
Lupus
|November 14, 1998
Summary
Thrombomodulin (TM) is a key anticoagulant protein. Soluble TM fragments in plasma (pTM) indicate endothelial cell injury and are linked to various diseases, including infections and pregnancy complications.
Area of Science:
- Biochemistry
- Cell Biology
- Hematology
Background:
- Thrombomodulin (TM) is an endothelial cell membrane protein crucial for natural anticoagulation.
- TM functions as a cofactor for thrombin-mediated protein C activation, inhibiting thrombin's procoagulant activity.
- TM is also expressed in other cell types, potentially influencing differentiation and inflammation.
Purpose of the Study:
- To elucidate the role of Thrombomodulin (TM) as a biomarker.
- To investigate the clinical significance of soluble TM fragments (pTM) in various pathological conditions.
Main Methods:
- Measurement of plasma TM levels (pTM) using a two-site enzyme-linked immunosorbent assay (ELISA).
- Correlation of pTM levels with endothelial cell injury and disease activity.
Main Results:
- Elevated pTM levels are observed in conditions with diffuse endothelial damage, such as disseminated intravascular coagulation, diabetic microangiopathy, and infections (Plasmodium falciparum, rickettsial).
- pTM serves as a predictive marker for hypertensive disorders of pregnancy.
- pTM levels correlate with disease activity in systemic inflammatory diseases.
Conclusions:
- Plasma TM level (pTM) is a valuable molecular marker for endothelial cell injury.
- pTM has diagnostic and prognostic utility in diverse clinical settings, including infections, pregnancy complications, and inflammatory diseases.