Aptamer-Based Targeted Drug Delivery Systems: Current Potential and Challenges
- PMID: 30295183
- DOI: 10.2174/0929867325666181008142831
Aptamer-Based Targeted Drug Delivery Systems: Current Potential and Challenges
Abstract
Aptamers are single-stranded DNA or RNA with 20-100 nucleotides in length that can specifically bind to target molecules via formed three-dimensional structures. These innovative targeting molecules have attracted an increasing interest in the biomedical field. Compared to traditional protein antibodies, aptamers have several advantages, such as small size, high binding affinity, specificity, good biocompatibility, high stability and low immunogenicity, which all contribute to their wide application in the biomedical field. Aptamers can bind to the receptors on the cell membrane and mediate themselves or conjugated nanoparticles to enter into cells. Therefore, aptamers can be served as ideal targeting ligands for drug delivery. Since their excellent properties, different aptamer-mediated drug delivery systems had been developed for cancer therapy. This review provides a brief overview of recent advances in drug delivery systems based on aptamers. The advantages, challenges and future prospectives are also discussed.
Keywords: Aptamer; cancer target therapy; drug carrier; drug delivery system; nano-medicine; nanomaterials..
Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.
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