Pharmacopsychiatry 2019; 52(02): 63-69
DOI: 10.1055/s-0044-101467
Original Paper
© Georg Thieme Verlag KG Stuttgart · New York

DNA Methylation Profiling in a Neuroblastoma Cell Line Exposed to the Antipsychotic Perospirone

Yui Murata
1   Department of Molecular Psychiatry, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
2   Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
3   Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto City, Kumamoto, 860-8556, Japan
,
Miki Bundo
1   Department of Molecular Psychiatry, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
3   Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto City, Kumamoto, 860-8556, Japan
,
Fumiko Sunaga
1   Department of Molecular Psychiatry, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
,
Kiyoto Kasai
2   Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
,
Kazuya Iwamoto
1   Department of Molecular Psychiatry, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
3   Department of Molecular Brain Science, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto City, Kumamoto, 860-8556, Japan
› Author Affiliations
Further Information

Publication History

received 18 September 2017
revised 07 December 2017

accepted 18 January 2018

Publication Date:
27 February 2018 (online)

Abstract

Introduction Accumulating evidence suggests the importance of epigenetic changes in the brain induced by antipsychotic drugs. However, due to the lack of systematic investigation, their effects on epigenetic status remain largely unclear. During the course of examining the epigenetic effects of antipsychotics, we here focused on perospirone, an atypical antipsychotic drug mainly used in Japan.

Methods Genomic DNA was obtained from human neuroblastoma cells exposed to 2 different doses of perospirone. Comprehensive DNA methylation analysis was performed using the Infinium HumanMethylation450 BeadChip.

Results Of about 470,000 probes, perospirone exposure changed DNA methylation at 4098 probes. These probes were enriched to genes for neural development. Probes showing hypermethylation were mainly found at gene body and intergenic regions, whereas those that showed hypomethylation were located near promoter regions. Additionally, DNA methylation changes were found in the probes for dopamine receptor 2 and serotonin receptor (HTR) 2A and HTR1A, which are the pharmacological targets of atypical antipsychotics.

Discussion Our comprehensive DNA methylation analyses will contribute to a better understanding of detailed pharmacological actions of perospirone.

 
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