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Effects of erythrocyte microvesicles on the coagulation process stages

G Ya Levin1, E G Sukhareva, M N Egorikhina

  • 1Nizhniy Novgorod Research Institute of Traumatology and Orthopedics, Ministry of Health of the Russian Federation, Russia. levin@unn.ac.ru.

Bulletin of Experimental Biology and Medicine
|December 10, 2013
PubMed

Insights

Erythrocyte microvesicles show dual effects on blood clotting, acting as both procoagulant and anticoagulant agents by influencing fibrin formation. Storage time and microvesicle density alter these hemocoagulation effects.

Area of Science:

  • Hematology
  • Biochemistry
  • Cell Biology

Background:

  • Erythrocyte microvesicles are released from red blood cells.
  • Their role in hemostasis and thrombosis is complex and not fully understood.
  • Understanding microvesicle function is crucial for managing bleeding and clotting disorders.

Purpose of the Study:

  • To investigate the impact of erythrocyte microvesicles on plasma coagulation.
  • To determine if microvesicles exhibit procoagulant or anticoagulant properties.
  • To analyze how erythrocyte storage duration and microvesicle density affect hemocoagulation.

Main Methods:

  • Isolation of microvesicles from erythrocytes.
  • Assessment of microvesicle effects on platelet-free autoplasma coagulation.
  • Analysis of fibrin formation inhibition.
  • Comparison of effects from "light" and "heavy" microvesicles.
  • Evaluation of microvesicles from erythrocytes stored for 24 and 48 hours.

Main Results:

  • Erythrocyte microvesicles demonstrated both procoagulant and anticoagulant activities.
  • A significant anticoagulant effect was observed via inhibition of fibrin formation.
  • Microvesicles isolated after 24-hour storage had different effects compared to those from 48-hour storage.
  • Distinct hemocoagulation effects were noted between "light" and "heavy" microvesicles.

Conclusions:

  • Erythrocyte microvesicles possess a dual role in regulating blood coagulation.
  • Their influence on fibrin formation suggests a complex regulatory mechanism in hemostasis.
  • Factors like storage time and microvesicle density are critical determinants of their hemostatic potential.

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