Abstract
Exosomes are extra-cellular vesicles that are < 150 nm that is formed by invagination of the plasma membrane and are released as vesicles. These contain proteins, RNA, and DNA as their cargo. In recent times, the non-coding RNA (ncRNA) present within exosomes has been studied extensively in the context of sorting, localization, and their potential as biomarkers. For example, miR-1246, miR-1290, miR-21, and miR-23a are exosomal biomarkers of cancer, and YBX1 (Y-Box Binding Protein 1) is attributed to exosomal RNA sorting. Transfer RNA-derived fragments are a class of small ncRNAs that were discovered in 2009. They are classified as tRFs (tRNA-derived fragments) and tsRNAs (tRNA halves). Interestingly, these tRNA-derived ncRNAs are emerging as biomarkers in various diseases, and these are found in exosomes. To date, the literature has covered only the biomarker potential of plasma/serum tRNA-derived ncRNAs. Hence, in the current review, we discuss the exosomal tRNA-derived fragments that are clinically relevant in pathological conditions.
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Data sharing is not applicable to this article as no new data were created or analyzed in this study.
Abbreviations
- ncRNA:
-
Non-coding RNA
- tRFs:
-
tRNA-derived fragments
- tsRNAs:
-
tRNA halves
- YBX1:
-
Y box-binding protein 1
- CKD:
-
Chronic kidney disease
- SE:
-
Seminal exosomes
- SONFH:
-
Steroid-induced osteonecrosis of the femoral head
- AD:
-
Atopic dermatitis
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Acknowledgements
TV acknowledges Central University of Kerala for support. PSS thank Faculty seed research grant of the National Institute of Technology, Calicut and Department of Biotechnology (BT/PR16307/MED/30/1729/2016) Govt of India for the support. ST thank Ministry of Education, Govt of India and the National Institute of Technology, Calicut for the fellowship. We apologize to many scientists whose research studies were not included in this review due to page/word limit.
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Suresh, P.S., Thankachan, S. & Venkatesh, T. Landscape of Clinically Relevant Exosomal tRNA-Derived Non-coding RNAs. Mol Biotechnol 65, 300–310 (2023). https://doi.org/10.1007/s12033-022-00546-5
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DOI: https://doi.org/10.1007/s12033-022-00546-5