Impacts of the Feedback Loop Between Sense-antisense RNAs in Regulating Circadian Rhythms

Overview

Journal NPJ Syst Biol Appl

Specialty Biology

Date 2024 Oct 16

PMID 39414861

Authors

Koichiro Uriu

Juan P Hernandez-Sanchez

Shihoko Kojima

Affiliations

Soon will be listed here.

Abstract

Antisense transcripts are a unique group of non-coding RNAs and play regulatory roles in a variety of biological processes, including circadian rhythms. Per2AS is an antisense transcript to the sense core clock gene Period2 (Per2) in mouse and its expression is rhythmic and antiphasic to Per2. To understand the impact of Per2AS-Per2 interaction, we developed a new mathematical model that mechanistically described the mutually repressive relationship between Per2 and Per2AS. This mutual repression can regulate both amplitude and period of circadian oscillation by affecting a negative feedback regulation of Per2. Simulations from this model also fit with experimental observations that could not be fully explained by our previous model. Our revised model can not only serve as a foundation to build more detailed models to better understand the impact of Per2AS-Per2 interaction in the future, but also be used to analyze other sense-antisense RNA pairs that mutually repress each other.

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