• Birte Weber, Niklas Franz, Ingo Marzi, Dirk Henrich, and Liudmila Leppik.
• Department of Trauma-, Hand- and Reconstructive Surgery, University Hospital Frankfurt, Goethe-University, Frankfurt am Main, Germany.
• Eur J Trauma Emerg Surg. 2022 Jun 1; 48 (3): 152515441525-1544.

AbstractDue to the continued high incidence and mortality rate worldwide, there is a need to develop new strategies for the quick, precise, and valuable recognition of presenting injury pattern in traumatized and poly-traumatized patients. Extracellular vesicles (EVs) have been shown to facilitate intercellular communication processes between cells in close proximity as well as distant cells in healthy and disease organisms. miRNAs and proteins transferred by EVs play biological roles in maintaining normal organ structure and function under physiological conditions. In pathological conditions, EVs change the miRNAs and protein cargo composition, mediating or suppressing the injury consequences. Therefore, incorporating EVs with their unique protein and miRNAs signature into the list of promising new biomarkers is a logical next step. In this review, we discuss the general characteristics and technical aspects of EVs isolation and characterization. We discuss results of recent in vitro, in vivo, and patients study describing the role of EVs in different inflammatory diseases and traumatic organ injuries. miRNAs and protein signature of EVs found in patients with acute organ injury are also debated.© 2021. The Author(s).

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