Analysis of von Willebrand factor multimers using a commercially available enhanced chemiluminescence kit.

Abstract:

AIMS:To develop a rapid, sensitive, and safe method for the analysis of von Willebrand factor (vWf) multimers in plasma or platelet lysates. METHOD:Analysis of vWf multimers was carried out by sodium dodecyl sulphate-agarose discontinuous gel electrophoresis followed by protein transfer to nitrocellulose membranes by western blotting. Blots were probed using horseradish peroxidase (HRP) conjugated rabbit anti-vWf; visualisation of vWf multimers was achieved using a commercially available enhanced chemi-Luminescence (ECL) kit for detecting HRP labelled antibodies on western blots. RESULTS:Electrophoretic transfer of vWf multimers to nitrocellulose membranes, including the higher molecular weight forms, was achieved satisfactorily and there was good resolution of individual multimer bands and of the triplet sub-band structure. Type II vWD variants were readily identifiable. The use of ECL conferred a high degree of sensitivity to the method and the end result on autoradiography film provided a permanent record which did not fade and which was suitable for scanning densitometry. CONCLUSION:The method for vWf multimer analysis described here is sensitive, simple to carry out, uses minimal amounts of reagents, produces results within 48 hours, and does not require the use of potentially hazardous radioactive materials or carcinogenic enzyme substrates.

journal_name

J Clin Pathol

authors

Cumming AM,Wensley RT

doi

10.1136/jcp.46.5.470

subject

Has Abstract

pub_date

1993-05-01 00:00:00

pages

470-3

issue

5

eissn

0021-9746

issn

1472-4146

journal_volume

46

pub_type

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