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A Comprehensive Review on Factors Influences Biogenesis, Functions, Therapeutic and Clinical Implications of Exosomes

Authors Gurunathan S, Kang MH, Kim JH

Received 13 November 2020

Accepted for publication 16 January 2021

Published 17 February 2021 Volume 2021:16 Pages 1281—1312


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Prof. Dr. Thomas J. Webster

Sangiliyandi Gurunathan, Min-Hee Kang, Jin-Hoi Kim

Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul, 05029, Korea

Correspondence: Sangiliyandi Gurunathan; Jin-Hoi Kim
Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul, 05029, Korea
Tel +82 2 450 3687
Fax +82 2 544 4645

Abstract: Exosomes are nanoscale-sized membrane vesicles secreted by almost all cell types into the extracellular environment upon fusion of multivesicular bodies and plasma membrane. Biogenesis of exosomes is a protein quality control mechanism, and once released, exosomes transmit signals to other cells. The applications of exosomes have increased immensely in biomedical fields owing to their cell-specific cargos that facilitate intercellular communications with neighboring cells through the transfer of biologically active compounds. The diverse constituents of exosomes reflect their cell of origin and their detection in biological fluids represents a diagnostic marker for various diseases. Exosome research is expanding rapidly due to the potential for clinical application to therapeutics and diagnosis. However, several aspects of exosome biology remain elusive. To discover the use of exosomes in the biomedical applications, we must better understand the basic molecular mechanisms underlying their biogenesis and function. In this comprehensive review, we describe factors involved in exosomes biogenesis and the role of exosomes in intercellular signaling and cell-cell communications, immune responses, cellular homeostasis, autophagy, and infectious diseases. In addition, we discuss the role of exosomes as diagnostic markers, and their therapeutic and clinical implications. Furthermore, we addressed the challenges and outstanding developments in exosome research, and discuss future perspectives.

Keywords: extracellular vesicle, exosome, biogenesis, function, cell-cell communication, immune response, cellular homeostasis, autophagy

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