期刊
ACS APPLIED MATERIALS & INTERFACES
卷 13, 期 24, 页码 27749-27773出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c06818
关键词
aptamer; photodynamic therapy; nanocarriers; photosensitizers; synergistic therapy; theranostics
资金
- Strategic Priority Research Program of Chinese Academy of Science [XDA16040700]
- National Natural Science Foundation of China [81801837, 31900999]
- Science Foundation of Jiangsu Province [BK20180258, BK20180251]
- China Postdoctoral Science Foundation [2019T120475]
Aptamers, short oligonucleotide sequences with selective binding abilities, have shown promise in improving controlled and accurate delivery of photosensitizers into tumor sites for enhanced photodynamic therapy. Modification of aptamers onto PSs or nanocarriers enables specific recognition and binding to tumor cells, resulting in superior therapeutic efficiency. The development of aptamer-targeted platforms for tumor therapy holds potential for synergistic treatment modalities like PDT, photothermal therapy, and chemotherapy.
Achieving controlled and accurate delivery of photosensitizers (PSs) into tumor sites is a major challenge in conventional photodynamic therapy (PDT). Aptamer is a short oligonucleotide sequence (DNA or RNA) with a folded three-dimensional structure, which can selectively bind to specific small molecules, proteins, or the whole cells. Aptamers could act as ligands and be modified onto PSs or nanocarriers, enabling specific recognition and binding to tumor cells or their membrane proteins. The resultant aptamer-modified PSs or PSs-containing nanocarriers generate amounts of reactive oxygen species with light irradiation and obtain superior photodynamic therapeutic efficiency in tumors. Herein, we overview the recent progress in the designs and applications of aptamer-targeted photodynamic platforms for tumor therapy. First, we focus on the progress on the rational selection of aptamers and summarize the applications of aptamers which have been applied for targeted tumor diagnosis and therapy. Then, aptamer-targeted photodynamic therapies including various aptamer-PSs, aptamer-nanocarriers containing PSs, and aptamer-nanophotosensitizers are highlighted. The aptamer-targeted synergistically therapeutic platforms including PDT, photothermal therapy, and chemotherapy, as well as the imaging-guided theranostics, are also discussed. Finally, we offer an insight into the development trends and future perspectives of aptamer-targeted photodynamic platforms for tumor therapy.
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