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Biomater Sci. 2016 May 24;4(6):910-21. doi: 10.1039/c5bm00583c.

From structures to functions: insights into exosomes as promising drug delivery vehicles.

Biomaterials science

Jinghua Ren, Wenshan He, Lifen Zheng, Hongwei Duan

Affiliations

  1. Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430022, P. R. China. [email protected].
  2. Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan 430022, P. R. China.
  3. School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 637457 Singapore. [email protected].

PMID: 26977477 DOI: 10.1039/c5bm00583c

Abstract

Exosomes are small membrane vesicles secreted by most cell types, and appear ubiquitously in cell culture supernatants and body fluids. Increasing evidence supports that exosomes play important roles in intercellular communication, both locally and systemically, by transporting their contents such as proteins, lipids and RNAs between cells. Of particular interest for controlled drug delivery is that cell-derived exosomes offer the possibilities of overcoming biological barriers, thereby allowing the incorporated gene and drug to reach targeted tissue, which have been considerable challenges for synthetic carriers. Great research efforts have been dedicated to developing exosome-based drug delivery systems for the treatment of inflammatory diseases, degenerative disorders and cancer. In this review, we will describe the structural and functional properties of exosomes and emphasize current advances in the therapeutic applications of exosomes as drug delivery vehicles, followed by a discussion on current challenges and future perspectives.

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