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Exploring Sequence Space to Identify Binding Sites for Regulatory RNA-Binding Proteins
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Aptamers: multifunctional molecules for biomedical research.

Jayeeta Banerjee1, Marit Nilsen-Hamilton

  • 1Biology Department, Indian Institute of Science Education and Research (IISER), 900 NCL Innovation Park, Dr. Homi Bhabha Road, Pune, 411008, India, jayeetab@iiserpune.ac.in.

Journal of Molecular Medicine (Berlin, Germany)
|September 19, 2013
PubMed
Summary
This summary is machine-generated.

Aptamers, or synthetic antibodies, offer targeted therapies and diagnostics with advantages over traditional antibodies. Further engineering is needed to overcome development challenges for broader biomedical applications.

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Area of Science:

  • Biotechnology
  • Molecular Biology
  • Medical Diagnostics

Background:

  • Aptamers are single-stranded DNA or RNA molecules that fold into specific 3D structures.
  • These structures enable high-affinity and specific binding to diverse targets, including molecules, proteins, and cells.
  • Often termed 'chemical antibodies,' aptamers offer synthetic accessibility and chemical modifiability advantages over traditional antibodies.

Purpose of the Study:

  • To review the development and applications of aptamers in therapeutics, drug delivery, target validation, and imaging.
  • To discuss the challenges hindering the full realization of aptamer potential in biomedical fields.
  • To highlight the role of aptamer engineering in advancing future bioanalytical and biomedical applications.

Main Methods:

  • Aptamers are generated using in vitro selection, specifically Systemic Evolution of Ligands by Exponential Enrichment (SELEX).
  • Review of existing literature on aptamer development, clinical trials, and applications.
  • Analysis of aptamer properties, advantages, and limitations compared to antibodies.

Main Results:

  • Aptamers demonstrate significant potential in various biomedical applications due to their specific binding capabilities.
  • The first aptamer therapeutic, Macugen, has been approved, with others in clinical trials.
  • Challenges in aptamer development require further research and engineering for practical implementation.

Conclusions:

  • Aptamers represent a promising class of molecules for advanced diagnostics and therapeutics.
  • Continued advancements in aptamer engineering are crucial for overcoming current limitations.
  • The field is poised for significant growth in bioanalytical and biomedical applications.