Aptamers, a promising new class of therapeutics, are single-stranded oligonucleotides generated via an in vitro selection process that bind to and inhibit the activity of target proteins in a manner similar to therapeutic antibodies. In order to enhance the drug-like character of aptamers, oligonucleotide libraries containing modified nucleotides are increasingly being used for selection. Principally, the choice of modifications aims to increase aptamer potency by enhancing nuclease-resistance, or increasing target affinity by providing more target recognition functionality or generating more stable aptamer structures.
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| http://dx.doi.org/10.1016/j.cbpa.2008.06.028 | DOI Listing |
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