Possible epigenetic regulatory effect of dysregulated circular RNAs in Alzheimer’s disease model

Woo Jin Lee, Jangsup Moon, Daejong Jeon, Yong Won Shin, Jung Suk Yoo, Dong Kyu Park, Soon Tae Lee, Keun Hwa Jung, Kyung Il Park, Ki Young Jung, Manho Kim, Sang Kun Lee, Kon Chu

Research output: Contribution to journalArticle

Abstract

As circular RNAs (circRNAs) regulates the effect of micro RNAs (miRNAs), circRNA–miRNA-mRNA network might be implicated in various disease pathogenesis. Therefore, we evaluated the dysregulated circRNAs in the Tg2576 mouse Alzheimer’s disease (AD) model, their possible regulatory effects on downstream target mRNAs, and their pathomechanistic role during the disease progression. The microarray-based circRNA expression analysis at seven- and twelve-months of ages (7 M and 12 M) returned 101 dysregulated circRNAs at 7 M (55 up-regulated and 46 down-regulated) and twelve dysregulated circRNAs at 12 M (five up-regulated and seven down-regulated). For each dysregulated circRNA, potential target miRNAs and their downstream target mRNAs were searched. Dysregulation of circRNAs was associated with increased frequency of relevant dysregulation of their downstream target mRNAs. Those differentially expressed circRNA–miRNA-mRNA regulatory network included 2,275 networks (876 for up-regulated circRNAs and 1,399 for down-regulated circRNAs) at 7 M and 38 networks (25 for up-regulated circRNAs and 13 for down-regulated circRNAs) at 12 M. Gene ontology (GO) and pathway analyses demonstrated that the dysregulated mRNAs in those networks represent the AD pathomechanism at each disease stage. We concluded that the dysregulated circRNAs might involve in the AD pathogenesis by modulating disease relevant mRNAs via circRNA–miRNA-mRNA regulatory networks.

Original languageEnglish
Article number11956
JournalScientific Reports
Volume9
Issue number1
DOIs
StatePublished - 1 Dec 2019

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Epigenomics
Alzheimer Disease
Messenger RNA
MicroRNAs
circular RNA
Gene Ontology
Disease Progression

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Lee, Woo Jin ; Moon, Jangsup ; Jeon, Daejong ; Shin, Yong Won ; Yoo, Jung Suk ; Park, Dong Kyu ; Lee, Soon Tae ; Jung, Keun Hwa ; Park, Kyung Il ; Jung, Ki Young ; Kim, Manho ; Lee, Sang Kun ; Chu, Kon. / Possible epigenetic regulatory effect of dysregulated circular RNAs in Alzheimer’s disease model. In: Scientific Reports. 2019 ; Vol. 9, No. 1.
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Possible epigenetic regulatory effect of dysregulated circular RNAs in Alzheimer’s disease model. / Lee, Woo Jin; Moon, Jangsup; Jeon, Daejong; Shin, Yong Won; Yoo, Jung Suk; Park, Dong Kyu; Lee, Soon Tae; Jung, Keun Hwa; Park, Kyung Il; Jung, Ki Young; Kim, Manho; Lee, Sang Kun; Chu, Kon.

In: Scientific Reports, Vol. 9, No. 1, 11956, 01.12.2019.

Research output: Contribution to journalArticle

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AU - Lee, Woo Jin

AU - Moon, Jangsup

AU - Jeon, Daejong

AU - Shin, Yong Won

AU - Yoo, Jung Suk

AU - Park, Dong Kyu

AU - Lee, Soon Tae

AU - Jung, Keun Hwa

AU - Park, Kyung Il

AU - Jung, Ki Young

AU - Kim, Manho

AU - Lee, Sang Kun

AU - Chu, Kon

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