Distinct non-coding RNA cargo of extracellular vesicles from M1 and M2 human primary macrophages
File(s)J of Extracellular Vesicle - 2022 - Pantazi.pdf (2.37 MB)
Published version
Author(s)
Pantazi, Paschalia
Clements, Toby
Veno, Morten
Abrahams, Vikki M
Holder, Beth
Type
Journal Article
Abstract
Macrophages are important antigen presenting cells which can release extracellular vesicles (EVs) carrying functional cargo including non-coding RNAs. Macrophages can be broadly classified into M1 ‘classical’ and M2 ‘alternatively-activated’ macrophages. M1 macrophages have been linked with inflammation-associated pathologies, whereas a switch towards an M2 phenotype indicates resolution of inflammation and tissue regeneration. Here, we provide the first comprehensive analysis of the small RNA cargo of EVs from human M1 and M2 primary macrophages. Using small RNA sequencing, we identified several types of small non-coding RNAs in M1 and M2 macrophage EVs including miRNAs, isomiRs, tRNA fragments, piRNA, snRNA, snoRNA and Y-RNA fragments. Distinct differences were observed between M1 and M2 EVs, with higher relative abundance of miRNAs, and lower abundance of tRNA fragments in M1 compared to M2 EVs. MicroRNA-target enrichment analysis identified several gene targets involved in gene expression and inflammatory signalling pathways. EVs were also enriched in tRNA fragments, primarily originating from the 5′ end or the internal region of the full length tRNAs, many of which were differentially abundant in M1 and M2 EVs. Similarly, several other small non-coding RNAs, namely snRNAs, snoRNAs and Y-RNA fragments, were differentially enriched in M1 and M2 EVs; we discuss their putative roles in macrophage EVs. In conclusion, we show that M1 and M2 macrophages release EVs with distinct RNA cargo, which has the potential to contribute to the unique effect of these cell subsets on their microenvironment.
Date Issued
2022-12
Date Acceptance
2022-12-07
Citation
Journal of Extracellular Vesicles, 2022, 11 (12), pp.1-19
ISSN
2001-3078
Publisher
Wiley
Start Page
1
End Page
19
Journal / Book Title
Journal of Extracellular Vesicles
Volume
11
Issue
12
Copyright Statement
© 2022 The Authors. Journal of Extracellular Vesicles published by Wiley Periodicals, LLC on behalf of the International Society for Extracellular Vesicles.
This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
License URL
Identifier
https://onlinelibrary.wiley.com/doi/10.1002/jev2.12293
Subjects
ACTIVATION
Cell Biology
CELLS
DATABASE
DIAGNOSTIC BIOMARKER
DIFFERENTIATION
EXOSOMES
extracellular vesicles
FRAGMENTS
Life Sciences & Biomedicine
M1
M2 macrophages
monocyte-derived macrophages
NUCLEAR
POLARIZATION
Science & Technology
small non-coding RNA
small RNA sequencing
Publication Status
Published
Article Number
e12293
Date Publish Online
2022-12-21