The DGCR5 long noncoding RNA may regulate expression of several schizophrenia-related genes

Qingtuan Meng, Kangli Wang, Tonya Brunetti, Yan Xia, Chuan Jiao, Rujia Dai, Dominic Fitzgerald, Amber Thomas, Lindsey Jay, Heather Eckart, Kay Grennan, Yuka Imamura-Kawasawa, Mingfeng Li, Nenad Sestan, Kevin P. White, Chao Chen, Chunyu Liu

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

A number of studies indicate that rare copy number variations (CNVs) contribute to the risk of schizophrenia (SCZ). Most of these studies have focused on protein-coding genes residing in the CNVs. Here, we investigated long noncoding RNAs (lncRNAs) within 10 SCZ risk-associated CNV deletion regions (CNV-lncRNAs) and examined their potential contribution to SCZ risk. We used RNA sequencing transcriptome data derived from postmortem brain tissue from control individuals without psychiatric disease as part of the PsychENCODE BrainGVEX and Developmental Capstone projects. We carried out weighted gene coexpression network analysis to identify protein-coding genes coexpressed with CNV-lncRNAs in the human brain. We identified one neuronal function-related coexpression module shared by both datasets. This module contained a lncRNA called DGCR5 within the 22q11.2 CNV region, which was identified as a hub gene. Protein-coding genes associated with SCZ genome-wide association study signals, de novo mutations, or differential expression were also contained in this neuronal module. Using DGCR5 knockdown and overexpression experiments in human neural progenitor cells derived from human induced pluripotent stem cells, we identified a potential role for DGCR5 in regulating certain SCZ-related genes.

Original languageEnglish (US)
Article numbereaat6912
JournalScience Translational Medicine
Volume10
Issue number472
StatePublished - Dec 19 2018

All Science Journal Classification (ASJC) codes

  • Medicine(all)

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