Optimization of von Willebrand factor multimer analysis in vertical mini-gel electrophoresis systems: A rapid procedure

Autor(es)

Thomazini, Camila Martos ^{[1, 2]} ; Silva Soares, Rosangela de Paula ^[3] ; Flores da Rocha, Tania Rubia ^[3] ; Azevedo Sachetto, Ana Teresa ^{[1, 2]} ; Santoro, Marcelo Larami ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Fac Med, Sao Paulo, SP - Brazil

^[2] Inst Butantan, Lab Fisiopatol, Av Dr Vital Brazil 1500, BR-05503900 Sao Paulo, SP - Brazil

^[3] Univ Sao Paulo, Fundacao Prosangue, Hemoctr Sao Paulo, Fac Med, Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: THROMBOSIS RESEARCH; v. 175, p. 76-83, MAR 2019.
• Citações Web of Science: 0

Resumo

Von Willebrand disease (VWD) is a common cause of bleeding worldwide. Analysis of von Willebrand factor (VWF) multimer distribution (VWF:MD) is essential to properly classify and treat different types of VWD, and it is performed using a SDS agarose gel electrophoresis followed by Western blotting, a handmade technique that demands days to be completed and requires skillful execution. Aiming both to facilitate gel production and to shorten the preparation time, we developed an uncomplicated technique to provide agility in the analysis of VWF:MD, so that it can be easily accomplished in the routine practice of hemostasis laboratories. On that account, we used a commercial vertical mini-gel electrophoresis system for SDS-PAGE and a semi-dry transfer system, which allowed us to analyze VWF:MD of various samples in a period shorter than 12 h. This technique differentiated VWF:MD in human and animal plasmas under normal, congenital and acquired (experimental envenomation by Bothrops jararaca snake) conditions. This optimized method is cheap, rapid, reproducible, easy to be performed, and uses electrophoresis and Western blotting systems available in most laboratories. All these advantages encourage hemostasis professionals to use it in their routine practices. In order to facilitate the setup and accomplishment of the whole procedure step by step, videos were appended to the article. (AU)

• Processo FAPESP: 13/20239-8 - Alterações do fator de Von Willebrand e da síntese hepática de fatores hemostáticos em envenenamento experimental pela serpente Bothrops Jararaca
• Beneficiário: Camila Martos Thomazini
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 13/25177-0 - Envolvimento do fator de Von Willebrand nos distúrbios hemostáticos do envenenamento pela serpente Bothrops jararaca: estudo experimental
• Beneficiário: Marcelo Larami Santoro
• Modalidade de apoio: Auxílio à Pesquisa - Regular