Association between the expression of lncRNA BASP-AS1 and volume of right hippocampal tail moderated by episode duration in major depressive disorder: a CAN-BIND 1 report.

TitleAssociation between the expression of lncRNA BASP-AS1 and volume of right hippocampal tail moderated by episode duration in major depressive disorder: a CAN-BIND 1 report.
Publication TypeJournal Article
Year of Publication2021
AuthorsYrondi A, Fiori LM, Nogovitsyn N, Hassel S, Théroux JFrançois, Aouabed Z, Frey BN, Lam RW, Milev R, Müller DJ, Foster JA, Soares C, Rotzinger S, Strother SC, Macqueen GM, Arnott SR, Davis AD, Zamyadi M, Harris J, Kennedy SH, Turecki G
JournalTransl Psychiatry
Volume11
Issue1
Pagination469
Date Published2021 09 08
ISSN2158-3188
KeywordsDepressive Disorder, Major, DNA Methylation, Hippocampus, Humans, Magnetic Resonance Imaging, RNA, Long Noncoding
Abstract

The pathophysiology of major depressive disorder (MDD) encompasses an array of changes at molecular and neurobiological levels. As chronic stress promotes neurotoxicity there are alterations in the expression of genes and gene-regulatory molecules. The hippocampus is particularly sensitive to the effects of stress and its posterior volumes can deliver clinically valuable information about the outcomes of antidepressant treatment. In the present work, we analyzed individuals with MDD (N = 201) and healthy controls (HC = 104), as part of the CAN-BIND-1 study. We used magnetic resonance imaging (MRI) to measure hippocampal volumes, evaluated gene expression with RNA sequencing, and assessed DNA methylation with the (Infinium MethylationEpic Beadchip), in order to investigate the association between hippocampal volume and both RNA expression and DNA methylation. We identified 60 RNAs which were differentially expressed between groups. Of these, 21 displayed differential methylation, and seven displayed a correlation between methylation and expression. We found a negative association between expression of Brain Abundant Membrane Attached Signal Protein 1 antisense 1 RNA (BASP1-AS1) and right hippocampal tail volume in the MDD group (β = -0.218, p = 0.021). There was a moderating effect of the duration of the current episode on the association between the expression of BASP1-AS1 and right hippocampal tail volume in the MDD group (β = -0.48, 95% C.I. [-0.80, -0.16]. t = -2.95 p = 0.004). In conclusion, we found that overexpression of BASP1-AS1 was correlated with DNA methylation, and was negatively associated with right tail hippocampal volume in MDD.

DOI10.1038/s41398-021-01592-4
Alternate JournalTransl Psychiatry
PubMed ID34508068
PubMed Central IDPMC8433329
Grant ListFDN148374 / / CIHR / Canada
EGM141899 / / CIHR / Canada
ENP161427 / / CIHR / Canada