Evolutionary Insight into Immunothrombosis as a Healing Mechanism

Area of Science:

• Immunology
• Evolutionary Biology
• Biochemistry

Background:

• Invertebrates and vertebrates share wound-sealing and pathogen-killing responses: immunoclotting and immunothrombosis.
• These processes involve distinct blood cells and intravascular multidomain proteins with recognition capabilities.
• Vertebrate coagulation and fibrinolysis proteins are multifunctional, impacting inflammation and healing.

Purpose of the Study:

• To explore the evolutionary context of the coagulation system and hemostasis.
• To highlight the dual role of hemostasis in defense and healing.
• To examine the paradox of local repair proteins causing systemic pathology.

Main Methods:

• Evolutionary time scale contextualization.
• Framing of the coagulation system and hemostasis.
• Analysis of intravascular protein interactions and cellular roles.

Main Results:

• Immunoclotting and immunothrombosis, while functionally similar, utilize different molecular players across species.
• Multidomain proteins in vertebrates facilitate cooperative networks for pathogen and damage recognition.
• The hemostatic system's local protective functions can paradoxically lead to systemic pathogenic processes.

Conclusions:

• The coagulation system evolved as a dual-function mechanism for preventing blood loss and fighting infection.
• Hemostasis significantly influences wound healing, demonstrating its critical role in tissue repair.
• Understanding the evolutionary basis of hemostasis is key to managing its dual role in health and disease.