Noncoding RNAs: Regulatory Molecules of Host–Microbiome Crosstalk
2021
Malmuthuge, Nilusha | Guan, Le Luo
Recent emerging evidence has revealed that regulatory noncoding RNAs (microRNAs, circular RNAs) modulate host–microbe interactions and they have been proposed as potential biomarkers of the host’s response to microbiome-linked pathologies such as cancers, obesity, and neurodegenerative diseases. Interactions between microRNAs and circular RNAs, however, increase the complexity of the mechanisms that modulate host–microbe interactions. Current knowledge on these noncoding RNAs (ncRNAs) is mainly generated from well controlled germ-free or knockout (small) animal models. Application of such knowledge to effective modulation outcomes in humans (and livestock) is challenging due to the complex nature of microbiome-linked pathologies in larger outbred animals that constantly interact with the changing environment. This review critically discusses the findings of regulatory noncoding RNAs and their roles in microbiome-linked pathologies in small and large animals and provides insights on their roles as potential therapeutic agents to improve human (and livestock) health.
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