PMID- 32264719 OWN - NLM STAT- MEDLINE DCOM- 20210202 LR - 20210423 IS - 1521-0464 (Electronic) IS - 1071-7544 (Print) IS - 1071-7544 (Linking) VI - 27 IP - 1 DP - 2020 Dec TI - Prospects and challenges of extracellular vesicle-based drug delivery system: considering cell source. PG - 585-598 LID - 10.1080/10717544.2020.1748758 [doi] AB - Extracellular vesicles (EVs), including exosomes, microvesicles, and apoptotic bodies, are nanosized membrane vesicles derived from most cell types. Carrying diverse biomolecules from their parent cells, EVs are important mediators of intercellular communication and thus play significant roles in physiological and pathological processes. Owing to their natural biogenesis process, EVs are generated with high biocompatibility, enhanced stability, and limited immunogenicity, which provide multiple advantages as drug delivery systems (DDSs) over traditional synthetic delivery vehicles. EVs have been reported to be used for the delivery of siRNAs, miRNAs, protein, small molecule drugs, nanoparticles, and CRISPR/Cas9 in the treatment of various diseases. As a natural drug delivery vectors, EVs can penetrate into the tissues and be bioengineered to enhance the targetability. Although EVs' characteristics make them ideal for drug delivery, EV-based drug delivery remains challenging, due to lack of standardized isolation and purification methods, limited drug loading efficiency, and insufficient clinical grade production. In this review, we summarized the current knowledge on the application of EVs as DDS from the perspective of different cell origin and weighted the advantages and bottlenecks of EV-based DDS. FAU - Meng, Wanrong AU - Meng W AD - Department of Stomatology, School of Medicine, Sichuan Cancer Hospital, Sichuan Key Laboratory of Radiation Oncology, University of Electronic Science and Technology of China, Chengdu, PR China. FAU - He, Chanshi AU - He C AD - Department of Stomatology, School of Medicine, Sichuan Cancer Hospital, Sichuan Key Laboratory of Radiation Oncology, University of Electronic Science and Technology of China, Chengdu, PR China. FAU - Hao, Yaying AU - Hao Y AD - Department of Stomatology, School of Medicine, Sichuan Cancer Hospital, Sichuan Key Laboratory of Radiation Oncology, University of Electronic Science and Technology of China, Chengdu, PR China. FAU - Wang, Linlin AU - Wang L AD - Department of Stomatology, School of Medicine, Sichuan Cancer Hospital, Sichuan Key Laboratory of Radiation Oncology, University of Electronic Science and Technology of China, Chengdu, PR China. FAU - Li, Ling AU - Li L AD - Department of Stomatology, School of Medicine, Sichuan Cancer Hospital, Sichuan Key Laboratory of Radiation Oncology, University of Electronic Science and Technology of China, Chengdu, PR China. FAU - Zhu, Guiquan AU - Zhu G AD - Department of Stomatology, School of Medicine, Sichuan Cancer Hospital, Sichuan Key Laboratory of Radiation Oncology, University of Electronic Science and Technology of China, Chengdu, PR China. LA - eng PT - Journal Article PT - Review PL - England TA - Drug Deliv JT - Drug delivery JID - 9417471 RN - 0 (Drug Carriers) SB - IM MH - Drug Carriers/metabolism MH - Drug Delivery Systems/*methods MH - *Extracellular Vesicles MH - Humans PMC - PMC7178886 OTO - NOTNLM OT - Drug delivery OT - exosomes OT - extracellular vesicles OT - microvesicles EDAT- 2020/04/09 06:00 MHDA- 2021/02/03 06:00 PMCR- 2020/04/08 CRDT- 2020/04/09 06:00 PHST- 2020/04/09 06:00 [entrez] PHST- 2020/04/09 06:00 [pubmed] PHST- 2021/02/03 06:00 [medline] PHST- 2020/04/08 00:00 [pmc-release] AID - 1748758 [pii] AID - 10.1080/10717544.2020.1748758 [doi] PST - ppublish SO - Drug Deliv. 2020 Dec;27(1):585-598. doi: 10.1080/10717544.2020.1748758.