Exosomal RNAs: Novel Potential Biomarkers for Diseases—A Review

• Published in: International journal of molecular sciences Vol. 23; no. 5; p. 2461
• Main Authors: Wang, Jian, Yue, Bing-Lin, Huang, Yong-Zhen, Lan, Xian-Yong, Liu, Wu-Jun, Chen, Hong
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 23.02.2022; MDPI
• Subjects: Alzheimer's disease; Biomarkers; Biomarkers - metabolism; Biomarkers, Tumor - metabolism; Biosynthesis; Cancer; Cytokines; Exosomes - genetics; Exosomes - metabolism; Extracellular vesicles; Gene expression; Humans; Kinases; Leukemia; Lipids; Metabolism; MicroRNAs - genetics; MicroRNAs - metabolism; Physiology; Plasma; Proteins; Review; RNA, Circular; RNA, Long Noncoding - metabolism; RNA, Messenger - metabolism; Signal transduction; Telomerase; lncRNA; circRNA; human disease; miRNA; isolation techniques; mRNA; biomarker; exosome
• ISSN: 1422-0067; 1661-6596; 1422-0067
• DOI: 10.3390/ijms23052461

Exosomes are a subset of nano-sized extracellular vesicles originating from endosomes. Exosomes mediate cell-to-cell communication with their cargos, which includes mRNAs, miRNAs, lncRNAs, and circRNAs. Exosomal RNAs have cell specificity and reflect the conditions of their donor cells. Notably, their detection in biofluids can be used as a diagnostic marker for various diseases. Exosomal RNAs are ideal biomarkers because their surrounding membranes confer stability and they are detectable in almost all biofluids, which helps to reduce trauma and avoid invasive examinations. However, knowledge of exosomal biomarkers remains scarce. The present review summarizes the biogenesis, secretion, and uptake of exosomes, the current researches exploring exosomal mRNAs, miRNAs, lncRNAs, and circRNAs as potential biomarkers for the diagnosis of human diseases, as well as recent techniques of exosome isolation.