Related Experiment Video
Updated: May 22, 2026
07:08
Assessment of the Anticoagulant and Anti-inflammatory Properties of Endothelial Cells Using 3D Cell Culture and Non-anticoagulated Whole Blood
Published on: September 5, 2017
Studies on coagulation incompatibilities for xenotransplantation
Cristiana Bulato1, Claudia Radu, Paolo Simioni
1Department of Cardiologic, Thoracic and Vascular Sciences, University of Padua, Padua, Italy.
Methods in Molecular Biology (Clifton, N.J.)
|May 9, 2012
Summary
Molecular incompatibilities in coagulation systems between pigs and primates contribute to xenograft rejection. Understanding these differences is key to preventing microvascular thrombosis in xenotransplantation.
Area of Science:
- Biomedical Science
- Transplantation Immunology
- Coagulation Biology
Background:
- Microvascular thrombosis is a primary cause of xenograft rejection in solid organ transplantation.
- Incompatibilities between pig anticoagulants and primate coagulation factors may trigger thrombosis.
- Understanding these molecular differences is crucial for successful xenotransplantation using pigs as organ donors and primates as recipients.
Purpose of the Study:
- To analyze differences in human, monkey, and pig coagulation systems.
- To investigate molecular incompatibilities in anticoagulation pathways between pigs and primates.
- To identify methods for characterizing coagulation factors and studying xenotransplantation-related thrombosis.
Main Methods:
- Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and immunoblotting for identifying and characterizing coagulation factors.
- Analysis of molecular weight differences to determine the origin of coagulation proteins.
- In vitro models using human umbilical vein endothelial cells (HUVEC) and porcine aortic endothelial cells (PAEC) to study the protein C pathway and tissue factor pathway inhibitor (TFPI) function.
Main Results:
- Potential incompatibilities identified in the activation of protein C (PC) by pig thrombomodulin (TM) and endothelial protein C receptor.
- Possible failure of pig TFPI to efficiently inhibit human FXa and FVIIa/TF activity, contributing to thrombosis.
- SDS-PAGE and immunoblotting can differentiate between primate and pig coagulation proteins.
Conclusions:
- Molecular incompatibilities in the protein C pathway and TFPI function are significant barriers in pig-to-primate xenotransplantation.
- Characterization of coagulation factors and in vitro models are essential tools for studying xenotransplantation rejection.
- Addressing these coagulation incompatibilities is critical for advancing xenotransplantation research and clinical application.
Related Concept Videos
02:45Blood Transfusion and Agglutination
Blood transfusion is a therapeutic measure to restore the blood volume after extensive blood loss due to an accident or a medical procedure. Blood transfusion involves drawing a certain amount of blood from a suitable donor and infusing it into the recipient.
History
The history of blood transfusion dates back to the 17th century, when early attempts were made in animals. In 1818 James Blundell, a British doctor, performed the first successful human blood transfusion. Later in 1900, Karl...
History
The history of blood transfusion dates back to the 17th century, when early attempts were made in animals. In 1818 James Blundell, a British doctor, performed the first successful human blood transfusion. Later in 1900, Karl...
01:15Blood Transfusion
Blood transfusion is a critical medical procedure that saves lives and treats various medical conditions. It involves transferring blood from a donor to a recipient. This process requires a thorough understanding of the ABO blood group system and its associated antigens and antibodies.
Blood Transfusion Overview
A blood transfusion is a medical procedure used to replace blood lost due to injury, surgery, or to treat conditions such as anemia or cancer. During a transfusion, donor blood is...
Blood Transfusion Overview
A blood transfusion is a medical procedure used to replace blood lost due to injury, surgery, or to treat conditions such as anemia or cancer. During a transfusion, donor blood is...