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Screening Phage-Display Antibody Libraries Using Protein Arrays.

Ricardo Jara-Acevedo1, Paula Díez2,3, María González-González2,3

  • 1ImmunoStep SL. Edificio Centro de Investigación del Cáncer. Avda. Coimbra s/n, 37007, Salamanca, Spain.

Methods in Molecular Biology (Clifton, N.J.)
|November 9, 2017
PubMed
Summary

Phage-display technology enables rapid antibody generation. New array technology combined with bioinformatics allows high-throughput screening of antibody fragments, overcoming previous validation bottlenecks.

Keywords:
AntibodiesArrayHigh-throughput screeningPhage displayscFv

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Area of Science:

  • Biotechnology
  • Immunology
  • Molecular Biology

Background:

  • Phage-display technology is a powerful tool for generating specific antibodies.
  • Advantages include rapid generation and selection against numerous targets compared to hybridoma techniques.
  • A key limitation is the validation of antibody fragments.

Purpose of the Study:

  • To introduce a novel high-throughput method for validating antibody fragments generated via phage display.
  • To overcome the bottleneck in validating a large number of antibody fragments.

Main Methods:

  • Development of an array technology for depositing thousands of phages onto a nitrocellulose surface.
  • Utilizing micro-contact printing for phage deposition.
  • Integration of bioinformatic approaches for simultaneous affinity screening.

Main Results:

  • The described array technology enables the deposition of hundreds to thousands of phages.
  • Simultaneous affinity screening of antibody-displaying phages is achieved in a high-throughput format.
  • The method addresses the validation challenge in phage-display antibody generation.

Conclusions:

  • The new array-based method combined with bioinformatics offers an efficient high-throughput solution for validating phage-displayed antibody fragments.
  • This approach significantly enhances the utility of phage-display technology for antibody discovery.
  • The technique facilitates rapid and comprehensive screening of antibody libraries.