4.7 Review

Recent advances in aptamer-based targeted drug delivery systems for cancer therapy

Journal

Publisher

FRONTIERS MEDIA SA
DOI: 10.3389/fbioe.2022.972933

Keywords

aptamers; targeted drug delivery; cancer therapy; aptamer-drug conjugates (ApDCs); aptamer-based nanomaterial system

Funding

  1. National Natural Science Foundation of Shanghai
  2. China NSFC
  3. [21ZR1422600]
  4. [2210070260]

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Aptamer-embedded drug delivery systems have shown great potential in cancer therapy, as they can specifically bind to a variety of target molecules. They offer numerous advantages, including high biostability, versatile chemical modification, low immunogenicity, and strong tissue penetration. Therefore, they have attracted extensive interest in the field of precision medicine and hold significant importance for cancer treatment.
The past decade has become an important strategy in precision medicine for the targeted therapy of many diseases, expecially various types of cancer. As a promising targeted element, nucleic acid aptamers are single-stranded functional oligonucleotides which have specific abilities to bind with various target molecules ranging from small molecules to entire organisms. They are often named 'chemical antibody' and have aroused extensive interest in diverse clinical studies on account of their advantages, such as considerable biostability, versatile chemical modification, low immunogenicity and quick tissue penetration. Thus, aptamer-embedded drug delivery systems offer an unprecedented opportunity in bioanalysis and biomedicine. In this short review, we endeavor to discuss the recent advances in aptamer-based targeted drug delivery platforms for cancer therapy. Some perspectives on the advantages, challenges and opportunities are also presented.

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