Abstract
Self-assembled DNA nanostructures are well-defined nanoscale shapes, with uniform sizes, precise spatial addressability, and excellent biocompatibility. With these features, DNA nanostructures show great potential for biomedical applications; various DNA-based biomedical imaging probes or payload delivery carriers have been developed. In this review, we summarize the recent developments of DNA-based nanostructures as tools for diagnosis and cancer therapy. The biological effects that are brought about by DNA nanostructures are highlighted by in vitro and in vivo imaging, antitumor drug delivery, and immunostimulatory therapy. The challenges and perspectives of DNA nanostructures in the field of nanomedicine are discussed.
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