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Updated: Jun 23, 2026
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In Vitro Microfluidic Disease Model to Study Whole Blood-Endothelial Interactions and Blood Clot Dynamics in Real-Time
Published on: May 24, 2020
Crosstalk between inflammation and thrombosis
1Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Department of Pathology, University of Oklahoma Health Sciences Center, Howard Hughes Medical Institute, Oklahoma City, OK 73104, USA. charles-esmon@omrf.ouhsc.edu
Maturitas
|May 14, 2009
Summary
Inflammation promotes blood clots by disrupting natural anticoagulants like the protein C pathway. Restoring this pathway may reduce inflammation and prevent microvascular dysfunction in sepsis.
Area of Science:
- * Coagulation and Inflammation Biology
- * Vascular Biology and Thrombosis
Background:
- * Inflammation promotes a pro-thrombotic state through various mechanisms.
- * Key anticoagulant pathways, particularly the protein C pathway, are downregulated during inflammation.
- * Impaired protein C pathway function exacerbates inflammatory responses and endothelial injury.
Purpose of the Study:
- * To examine the impact of inflammation on the protein C anticoagulant pathway.
- * To elucidate the role of the protein C pathway in regulating inflammatory responses.
- * To understand how protein C pathway dysfunction contributes to microvascular complications in sepsis.
Main Methods:
- * Review of mechanisms involving tissue factor, fibrinolysis inhibition (PAI-1), and natural anticoagulant pathways.
- * Focus on the protein C pathway, including thrombomodulin (TM), endothelial cell protein C receptor (EPCR), and protein S.
- * Analysis of inflammatory mediator effects (TNF alpha, IL-6) on protein C pathway components and experimental models of endotoxin exposure and sepsis.
Main Results:
- * Inflammation upregulates pro-coagulant factors and downregulates natural anticoagulants, notably the protein C pathway.
- * Shed EPCR plays a role in neutrophil binding and may mediate anti-inflammatory effects of APC.
- * Inhibition of the protein C pathway amplifies inflammatory responses, while APC infusion mitigates these effects.
Conclusions:
- * The protein C pathway is a critical regulator of inflammation and microvascular integrity.
- * Dysfunction of the protein C pathway during inflammation contributes significantly to microvascular thrombosis and organ damage in sepsis.
- * Therapeutic strategies targeting the protein C pathway may offer benefits in managing sepsis-induced coagulopathy and inflammation.
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