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The prevalence of the cysteine1584 variant of von Willebrand factor is increased in type 1 von Willebrand disease: co-segregation with increased susceptibility to ADAMTS13 proteolysis but not clinical phenotype

Bowen, Derrick John, Collins, Peter William, Lester, Will, Cumming, Anthony M., Keeney, Steven, Grundy, Pamela, Enayat, Saad M., Bolton-Maggs, Paula H. B., Keeling, David M., Khair, Kate, Tait, R. Campbell, Wilde, Jonathon T., Pasi, K. John and Hill, Frank G. H. 2005. The prevalence of the cysteine1584 variant of von Willebrand factor is increased in type 1 von Willebrand disease: co-segregation with increased susceptibility to ADAMTS13 proteolysis but not clinical phenotype. British Journal of Haematology 128 (6) , pp. 830-836. 10.1111/j.1365-2141.2005.05375.x

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Abstract

The molecular pathogenesis of type 1 von Willebrand disease (VWD) is uncertain in most patients. We examined 30 type 1 VWD families in the UK Haemophilia Centre Doctors' Organization study. Heterozygosity for Y/C1584 was present in eight of 30 (27%) families and 19 of 76 (25%) individuals with type 1 VWD recruited into the study. Eighteen (95%) of these 19 individuals were blood group O. C1584 did not co-segregate with VWD in four families, and co-segregated in one family; the results were equivocal in three families. In all families increased susceptibility of von Willebrand factor (VWF) to a disintegrin and metalloprotease with thrombospondin motifs (ADAMTS) 13 proteolysis co-segregated with C1584 in affected and unaffected individuals. These data show that C1584, associated with blood group O, is prevalent among patients with type 1 VWD but not necessarily causative of disease and should not be used in isolation to diagnose VWD. Increased susceptibility of C1584 VWF to ADAMTS13 proteolysis may be physiologically significant and increase an individual's risk of bleeding and presenting with VWD.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Systems Immunity Research Institute (SIURI)
Subjects: R Medicine > R Medicine (General)
Uncontrolled Keywords: von Willebrand disease; ADAMTS13; proteolysis polymorphism; von Willebrand factor
Publisher: Wiley-Blackwell
ISSN: 0007-1048
Last Modified: 04 Jun 2017 06:14
URI: http://orca.cf.ac.uk/id/eprint/57557

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