Ontogenic mRNA expression of RNA modification writers, erasers, and readers in mouse liver

Autoři: Liming Chen aff001;  Pei Wang aff002;  Raman Bahal aff001;  José E. Manautou aff001;  Xiao-bo Zhong aff001
Působiště autorů: Department of Pharmaceutic Sciences, School of Pharmacy, University of Connecticut, Storrs, Connecticut, United States of America aff001;  Department of Pharmacology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China aff002
Vyšlo v časopise: PLoS ONE 14(12)
Kategorie: Research Article
doi: 10.1371/journal.pone.0227102


RNA modifications are recently emerged epigenetic modifications. These diverse RNA modifications have been shown to regulate multiple biological processes, including development. RNA modifications are dynamically controlled by the “writers, erasers, and readers”, where RNA modifying proteins are able to add, remove, and recognize specific chemical modification groups on RNAs. However, little is known about the ontogenic expression of these RNA modifying proteins in various organs, such as liver. In the present study, the hepatic mRNA expression of selected RNA modifying proteins involve in m6A, m1A, m5C, hm5C, m7G, and Ψ modifications was analyzed using the RNA-seq technique. Liver samples were collected from male C57BL/6 mice at several ages from prenatal through neonatal, infant, child to young adult. Results showed that most of the RNA modifying proteins were highly expressed in prenatal mouse liver with a dramatic drop at birth. After birth, most of the RNA modifying proteins showed a downregulation trend during liver maturation. Moreover, the RNA modifying proteins that belong to the same enzyme family were expressed at different abundances at the same ages in mouse liver. In conclusion, this study unveils that the mRNA expression of RNA modifying proteins follows specific ontogenic expression patterns in mice liver during maturation. These data indicated that the changes in expression of RNA modifying proteins might have a potential role to regulate gene expression in liver through alteration of RNA modification status.

Klíčová slova:

Epigenetics – Gene expression – Messenger RNA – Methyltransferases – Protein translation – Ribosomal RNA – RNA sequencing – Transfer RNA


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