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Profiling the autoantibody repertoire by screening phage-displayed human cDNA libraries

  • Roberto Di Niro
  • , Sara D'Angelo
  • , Paola Secco
  • , Roberto Marzari
  • , Claudio Santoro
  • , Daniele Sblattero

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

The advent of the serological identification of antigens by procedures such as cDNA cloning and recombinant protein expression has allowed the direct molecular definition of immunogenic proteins. The phage-display technology provides several advantages over conventional immunoscreening procedures based on plasmid or lambda-phage cDNA libraries. So far, attempts to display open reading frames, such as those encoded by cDNA fragments, on filamentous phages have not been very successful. We managed to develop a strategy based on "folding reporters" which allows filtering out open reading frames from DNA and displaying them on filamentous phages in such a way that they are amenable to subsequent selection or screening. Once the cDNA library of interest is created, phage-display technology is used for selection of novel putative antigens; these are then validated by printing isolated protein on microarray and screening with patients' sera.

Original languageEnglish
Title of host publicationPeptide Microarrays
Subtitle of host publicationMethods and Protocols
EditorsMarina Cretich, Marcella Chiari
Pages353-369
Number of pages17
DOIs
Publication statusPublished - 2009

Publication series

NameMethods in Molecular Biology
Volume570
ISSN (Print)1064-3745

Keywords

  • Cre-recombinase
  • Phage display
  • antigens
  • autoimmunity
  • high throughput
  • open reading frames
  • protein microarray
  • recombinant fusion protein
  • serum profiling

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