Polymerase chain reaction enrichment and normalization

نویسندگان

  • Irene Corrales
  • Susana Catarino
  • Júlia Ayats
  • David Arteta
  • Carmen Altisent
  • Francisco Vidal
چکیده

Systematic identification of the causal von Willebrand disease (VWD) mutations has been hampered by the large size of the von Willebrand factor gene (VWF) that is highly polymorphic and has a greatly homologous partial pseudogene. Because of these difficulties, molecular studies of VWD have been confined mainly to basic investigation. Current sequencing technology has allowed only some expert laboratories to perform VWF sequencing in patients with VWD. The cost of traditional sequencing based on the Sanger method remains a serious obstacle for most diagnostic laboratories. However, perspectives in the molecular diagnosis of monogenic diseases have radically changed over recent years with the introduction of new massively parallel next-generation sequencing (NGS) platforms that are considered alternatives or complementary to traditional sequencing. Systematic re-sequencing of genes that have been implicated in related Mendelian diseases is a promising strategy for identifying risk factors for complex diseases. Furthermore, next generation sequencing (NGS) technology could also facilitate the identification of mutations in patients with monogenic diseases. Although NGS is undoubtedly superior in throughput to Sanger sequencing, it has so far had little impact on monogenic disease diagnostics. To take advantage of this new technology for molecular diagnosis of VWD, we designed a procedure for fast, low-cost characterization of a large number of samples, derived from a highly optimized method developed in our laboratory. A proof-of-concept study was performed using an NGS platform. The results demonstrate a high performance DNA sequencing of VWF in a large number of VWD patients and their families, and establishes the basis for performing a large-scale sequencing study in an affected population.

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تاریخ انتشار 2012