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Advancements in Aptamer Discovery Technologies.

Michael R Gotrik1,2, Trevor A Feagin2, Andrew T Csordas1

  • 1Materials Department, University of California, Santa Barbara , Santa Barbara, California 93106, United States.

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|August 16, 2016
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This summary is machine-generated.

Advanced aptamer discovery methods accelerate the creation of high-performance aptamers. These novel techniques improve efficiency and success rates, potentially surpassing antibody capabilities for biomedical applications.

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Area of Science:

  • Biochemistry and Molecular Biology
  • Biotechnology
  • Medical Diagnostics

Background:

  • Aptamers are chemically synthesized, stable, and economical affinity reagents with vast biomedical potential.
  • Conventional aptamer discovery methods (e.g., SELEX) are often inefficient, time-consuming, and labor-intensive.
  • Existing aptamers may not match the binding performance of antibodies, limiting their widespread adoption.

Purpose of the Study:

  • To develop advanced, efficient, and high-success-rate methods for aptamer discovery.
  • To systematically improve aptamer selection, analysis, and characterization processes.
  • To generate high-performance aptamers with affinities potentially exceeding those of monoclonal antibodies.

Main Methods:

  • Microfluidic-based SELEX (M-SELEX) for rapid selection of high-affinity aptamers.
  • High-throughput sequencing (HTS) to track aptamer enrichment and identify top candidates.
  • Custom aptamer arrays and particle display (PD) screening for high-throughput affinity and specificity characterization.

Main Results:

  • M-SELEX enabled high-affinity aptamer discovery in fewer rounds with controlled stringency.
  • HTS analysis identified high-performing aptamers without full pool convergence.
  • Particle display screening rapidly generated aptamers with exceptional affinities, even for challenging targets.

Conclusions:

  • Advanced aptamer discovery methods significantly enhance efficiency, reduce resource requirements, and increase the probability of success.
  • These improved techniques facilitate the rapid generation of aptamers with excellent affinity and specificity.
  • The developed aptamer discovery platforms promise to accelerate the use of aptamers as valuable tools in research and clinical applications.