Regulatory RNAs: A Universal Language for Inter-Domain Communication

Emma Layton, Anna-Marie Fairhurst, Sam Griffiths-Jones, Richard K. Grencis, Ian S. Roberts
2020 International Journal of Molecular Sciences  
In eukaryotes, microRNAs (miRNAs) have roles in development, homeostasis, disease and the immune response. Recent work has shown that plant and mammalian miRNAs also mediate cross-kingdom and cross-domain communications. However, these studies remain controversial and are lacking critical mechanistic explanations. Bacteria do not produce miRNAs themselves, and therefore it is unclear how these eukaryotic RNA molecules could function in the bacterial recipient. In this review, we compare and
more » ... we compare and contrast the biogenesis and functions of regulatory RNAs in eukaryotes and bacteria. As a result, we discovered several conserved features and homologous components in these distinct pathways. These findings enabled us to propose novel mechanisms to explain how eukaryotic miRNAs could function in bacteria. Further understanding in this area is necessary to validate the findings of existing studies and could facilitate the use of miRNAs as novel tools for the directed remodelling of the human microbiota.
doi:10.3390/ijms21238919 pmid:33255483 fatcat:az5nzjyqzraczdxq3zb2rn5me4