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Lupus. 1996 Oct;5(5):488-93.

Protein C and other cofactors involved in the binding of antiphospholipid antibodies: relation to the pathogenesis of thrombosis.

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  • 1Department of Haematology, University Hospital Utrecht, The Netherlands.

Abstract

In this review we will discuss the possible interference of antiphospholipid antibodies with the protein C system. Antiphospholipid antibodies can interfere with the protein C system in different ways: (i) via inhibiting the formation of thrombin; (ii) via interference with the activation of protein C by the thrombomodulin-thrombin complex; (iii) via inhibition of the assembly of the protein C complex; (iv) via inhibition of the activity of protein C, directly or via its cofactor protein S, and (v) via antibodies directed against the substrates of APC, factors Va and VIIIa, thereby protecting them for inactivation. The experimental and theoretical indications that one of these mechanisms will explain the pathogenesis of the antiphospholipid syndrome is critically examined.

PMID:
8902788
DOI:
10.1177/096120339600500532
[PubMed - indexed for MEDLINE]
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