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Selection of Aptamers for Amyloid β-Protein, the Causative Agent of Alzheimer's Disease
Published on: May 13, 2010
Aptamers: selection, modification and application to nervous system diseases.
Y Yang1, X Ren, H J Schluesener
1Experimental Medicine Center of Tongji Hospital, Wuhan 430030, People's Republic of China.
Current Medicinal Chemistry
|August 16, 2011
Summary
Aptamers, generated via SELEX, offer high-affinity binding for biomedical applications. Recent modifications enhance their stability and bioavailability, advancing aptamer use in diagnosing and treating nervous system disorders.
Area of Science:
- Biochemistry
- Molecular Biology
- Biotechnology
Background:
- Aptamers are synthetic oligonucleotides produced through Systematic Evolution of Ligands by Exponential enrichment (SELEX).
- They exhibit high affinity and specificity for diverse targets due to their unique 3D structures.
- Aptamers offer advantages like rapid synthesis, cost-effectiveness, and small size.
Purpose of the Study:
- To review recent advancements in aptamer chemical modifications.
- To explore the application of modified aptamers in nervous system disorders.
- To highlight the potential of aptamers in diagnostics and therapeutics.
Main Methods:
- Literature review of aptamer modifications and applications.
- Analysis of SELEX process and aptamer characteristics.
- Focus on aptamer stability and bioavailability enhancements.
Main Results:
- Chemical modifications significantly improve aptamer stability in biological fluids.
- Enhanced bioavailability facilitates in vivo applications.
- Aptamers show promise for diagnosing and treating neurological conditions.
Conclusions:
- Aptamer technology is rapidly evolving with chemical modifications.
- Modified aptamers are increasingly viable for therapeutic and diagnostic uses.
- Further research into aptamer applications for nervous system disorders is warranted.

