Cocaine induces differential circular RNA expression in striatum

Circular RNA (circRNA), a novel type of endogenous non-coding RNA, plays natural miRNA sponge effect that represses the activities of corresponding miRNAs through binding with them, thus modulating transcriptional expression of genes. Recent studies indicate that circRNAs are significantly enriched in the brain and some of them are derived from synaptic protein-coding genes. In addition, miRNAs are involved in synaptic plasticity, memory formation, and cocaine addiction. However, the role of circRNAs in cocaine reward is unclear. This study aimed to investigate the expression profile of striatal circRNAs in the mice after cocaine self-administration. By using circRNA microarray analysis, we observed that 90 striatal circRNAs were differentially expressed in cocaine self-administering mice, of which 18 circRNAs were up-regulated and 72 down-regulated. Six circRNAs were selected randomly for validation by using quantitative reverse transcription-PCR, and their expression levels showed consistency with microarray analysis. We backward predicted the circRNAs and their binding sites of miRNAs associated with neuroplasticity. In functional validation test, mmu_circRNA_002381 may modulate the transcription of certain genes associated with neuroplasticity, such as limk1 and bdnf. Taken together, circRNAs may participate in cocaine behavioral effect via interacting with miRNAs. Our findings reveal a potential role of circRNAs in cocaine effect.

Medienart:

E-Artikel

Erscheinungsjahr:

2019

Erschienen:

2019

Enthalten in:

Zur Gesamtaufnahme - volume:9

Enthalten in:

Translational psychiatry - 9(2019), 1 vom: 21. Aug., Seite 199

Sprache:

Englisch

Beteiligte Personen:

Bu, Qian [VerfasserIn]
Long, Hailei [VerfasserIn]
Shao, Xue [VerfasserIn]
Gu, Hui [VerfasserIn]
Kong, Jueying [VerfasserIn]
Luo, Li [VerfasserIn]
Liu, Bin [VerfasserIn]
Guo, Wei [VerfasserIn]
Wang, Hongbo [VerfasserIn]
Tian, Jingwei [VerfasserIn]
Zhao, Yinglan [VerfasserIn]
Cen, Xiaobo [VerfasserIn]

Links:

Volltext

Themen:

Cocaine
Dopamine Uptake Inhibitors
I5Y540LHVR
Journal Article
RNA, Circular
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 09.03.2020

Date Revised 10.01.2021

published: Electronic

Citation Status MEDLINE

doi:

10.1038/s41398-019-0527-1

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM300447094