Thromb Haemost 1970; 24(01/02): 214-223
DOI: 10.1055/s-0038-1654227
Originalarbeiten – Original Articles – Travaux Originaux
Schattauer GmbH

The Adsorption of Coagulation Factors onto Phospholipids

Its Role in the Reaction Mechanism of Blood Coagulation

Authors

  • H. C Hemker

    1   Laboratories of Coagulation Biochemistry and Cardiovascular Biochemical Research, Departments of Haematology and Cardiology, University Hospital, Leiden, The Netherlands
  • M. J. P Kahn*

    1   Laboratories of Coagulation Biochemistry and Cardiovascular Biochemical Research, Departments of Haematology and Cardiology, University Hospital, Leiden, The Netherlands
  • P. P Devilee

    1   Laboratories of Coagulation Biochemistry and Cardiovascular Biochemical Research, Departments of Haematology and Cardiology, University Hospital, Leiden, The Netherlands
Further Information

Publication History

Publication Date:
28 June 2018 (online)

Preview

Summary

It is shown that factors VIII and IX react with phospholipid in a way fully analogous to the reaction of factors V and X. From this it is concluded that a complex of factors VIII and IX adsorbed onto a phospholipid micelle may be the entity that activates factor X in the intrinsic pathway. The implications of this finding for the concepts of the reaction mechanism of blood coagulation are discussed. It is shown that instead of the original 7-step cascade of Macfarlane, a 4-step cascade consisting partly of complex enzymes is more probable.

* Present address: Hôpital Universitaire St. Pierre, Service du Centre Albert Hustin, 322 Rue Haute, Bruxelles, Belgique.