A polymorphism of the metabotropic glutamate receptor mGluR7 (GRM7) gene is associated with schizophrenia

Tsuyuka Ohtsuki, Minori Koga, Hiroki Ishiguro, Yasue Horiuchi, Makoto Arai, Kazuhiro Niizato, Masanari Itokawa, Toshiya Inada, Nakao Iwata, Shyuji Iritani, Norio Ozaki, Hiroshi Kunugi, Hiroshi Ujike, Yuichiro Watanabe, Toshiuki Someya, Tadao Arinami

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

Introduction: Glutamate dysfunction has been implicated in the pathophysiology of schizophrenia. The metabotropic glutamate receptors (mGluRs) are G-protein-coupled receptors. GRM7, the gene that encodes mGluR7, is expressed in many regions of the human central nervous system. The GRM7 gene is located on human chromosome 3p26, which has been suggested by linkage analysis to contain a susceptibility locus for schizophrenia. Methods: We screened for mutations in all exons, exon/intron junctions, and promoter regions of the GRM7 gene in Japanese patients with schizophrenia and evaluated associations between the detected polymorphisms and schizophrenia. We examined the influence of one polymorphism associated with schizophrenia on the expression of GRM7 by dual-luciferase assay in transfected cells. Results: Twenty-five polymorphisms/mutations were detected in GRM7. Case-control analysis revealed a potential association of a synonymous polymorphism (371T/C, rs3749380) in exon 1 with schizophrenia in our case-control study of 2293 Japanese patients with schizophrenia and 2382 Japanese control subjects (allelic p = 0.009). Dual-luciferase assay revealed suppression of transcription activity by exon 1 containing this polymorphism and a statistically significant difference in the promoter activity between the T and C alleles. Conclusions: Our results support the possible association of a GRM7 gene polymorphism with genetic susceptibility to schizophrenia.

Original languageEnglish
Pages (from-to)9-16
Number of pages8
JournalSchizophrenia Research
Volume101
Issue number1-3
DOIs
Publication statusPublished - 01-04-2008

Fingerprint

Metabotropic Glutamate Receptors
Schizophrenia
Glutamate Receptors
Genes
Exons
Luciferases
Mutation
metabotropic glutamate receptor 7
Human Chromosomes
Genetic Predisposition to Disease
G-Protein-Coupled Receptors
Genetic Promoter Regions
Introns
Case-Control Studies
Glutamic Acid
Central Nervous System
Alleles

All Science Journal Classification (ASJC) codes

  • Psychiatry and Mental health
  • Biological Psychiatry

Cite this

Ohtsuki, T., Koga, M., Ishiguro, H., Horiuchi, Y., Arai, M., Niizato, K., ... Arinami, T. (2008). A polymorphism of the metabotropic glutamate receptor mGluR7 (GRM7) gene is associated with schizophrenia. Schizophrenia Research, 101(1-3), 9-16. https://doi.org/10.1016/j.schres.2008.01.027
Ohtsuki, Tsuyuka ; Koga, Minori ; Ishiguro, Hiroki ; Horiuchi, Yasue ; Arai, Makoto ; Niizato, Kazuhiro ; Itokawa, Masanari ; Inada, Toshiya ; Iwata, Nakao ; Iritani, Shyuji ; Ozaki, Norio ; Kunugi, Hiroshi ; Ujike, Hiroshi ; Watanabe, Yuichiro ; Someya, Toshiuki ; Arinami, Tadao. / A polymorphism of the metabotropic glutamate receptor mGluR7 (GRM7) gene is associated with schizophrenia. In: Schizophrenia Research. 2008 ; Vol. 101, No. 1-3. pp. 9-16.
@article{b9b3fd3575104343806ce387dd39e150,
title = "A polymorphism of the metabotropic glutamate receptor mGluR7 (GRM7) gene is associated with schizophrenia",
abstract = "Introduction: Glutamate dysfunction has been implicated in the pathophysiology of schizophrenia. The metabotropic glutamate receptors (mGluRs) are G-protein-coupled receptors. GRM7, the gene that encodes mGluR7, is expressed in many regions of the human central nervous system. The GRM7 gene is located on human chromosome 3p26, which has been suggested by linkage analysis to contain a susceptibility locus for schizophrenia. Methods: We screened for mutations in all exons, exon/intron junctions, and promoter regions of the GRM7 gene in Japanese patients with schizophrenia and evaluated associations between the detected polymorphisms and schizophrenia. We examined the influence of one polymorphism associated with schizophrenia on the expression of GRM7 by dual-luciferase assay in transfected cells. Results: Twenty-five polymorphisms/mutations were detected in GRM7. Case-control analysis revealed a potential association of a synonymous polymorphism (371T/C, rs3749380) in exon 1 with schizophrenia in our case-control study of 2293 Japanese patients with schizophrenia and 2382 Japanese control subjects (allelic p = 0.009). Dual-luciferase assay revealed suppression of transcription activity by exon 1 containing this polymorphism and a statistically significant difference in the promoter activity between the T and C alleles. Conclusions: Our results support the possible association of a GRM7 gene polymorphism with genetic susceptibility to schizophrenia.",
author = "Tsuyuka Ohtsuki and Minori Koga and Hiroki Ishiguro and Yasue Horiuchi and Makoto Arai and Kazuhiro Niizato and Masanari Itokawa and Toshiya Inada and Nakao Iwata and Shyuji Iritani and Norio Ozaki and Hiroshi Kunugi and Hiroshi Ujike and Yuichiro Watanabe and Toshiuki Someya and Tadao Arinami",
year = "2008",
month = "4",
day = "1",
doi = "10.1016/j.schres.2008.01.027",
language = "English",
volume = "101",
pages = "9--16",
journal = "Schizophrenia Research",
issn = "0920-9964",
publisher = "Elsevier",
number = "1-3",

}

Ohtsuki, T, Koga, M, Ishiguro, H, Horiuchi, Y, Arai, M, Niizato, K, Itokawa, M, Inada, T, Iwata, N, Iritani, S, Ozaki, N, Kunugi, H, Ujike, H, Watanabe, Y, Someya, T & Arinami, T 2008, 'A polymorphism of the metabotropic glutamate receptor mGluR7 (GRM7) gene is associated with schizophrenia', Schizophrenia Research, vol. 101, no. 1-3, pp. 9-16. https://doi.org/10.1016/j.schres.2008.01.027

A polymorphism of the metabotropic glutamate receptor mGluR7 (GRM7) gene is associated with schizophrenia. / Ohtsuki, Tsuyuka; Koga, Minori; Ishiguro, Hiroki; Horiuchi, Yasue; Arai, Makoto; Niizato, Kazuhiro; Itokawa, Masanari; Inada, Toshiya; Iwata, Nakao; Iritani, Shyuji; Ozaki, Norio; Kunugi, Hiroshi; Ujike, Hiroshi; Watanabe, Yuichiro; Someya, Toshiuki; Arinami, Tadao.

In: Schizophrenia Research, Vol. 101, No. 1-3, 01.04.2008, p. 9-16.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A polymorphism of the metabotropic glutamate receptor mGluR7 (GRM7) gene is associated with schizophrenia

AU - Ohtsuki, Tsuyuka

AU - Koga, Minori

AU - Ishiguro, Hiroki

AU - Horiuchi, Yasue

AU - Arai, Makoto

AU - Niizato, Kazuhiro

AU - Itokawa, Masanari

AU - Inada, Toshiya

AU - Iwata, Nakao

AU - Iritani, Shyuji

AU - Ozaki, Norio

AU - Kunugi, Hiroshi

AU - Ujike, Hiroshi

AU - Watanabe, Yuichiro

AU - Someya, Toshiuki

AU - Arinami, Tadao

PY - 2008/4/1

Y1 - 2008/4/1

N2 - Introduction: Glutamate dysfunction has been implicated in the pathophysiology of schizophrenia. The metabotropic glutamate receptors (mGluRs) are G-protein-coupled receptors. GRM7, the gene that encodes mGluR7, is expressed in many regions of the human central nervous system. The GRM7 gene is located on human chromosome 3p26, which has been suggested by linkage analysis to contain a susceptibility locus for schizophrenia. Methods: We screened for mutations in all exons, exon/intron junctions, and promoter regions of the GRM7 gene in Japanese patients with schizophrenia and evaluated associations between the detected polymorphisms and schizophrenia. We examined the influence of one polymorphism associated with schizophrenia on the expression of GRM7 by dual-luciferase assay in transfected cells. Results: Twenty-five polymorphisms/mutations were detected in GRM7. Case-control analysis revealed a potential association of a synonymous polymorphism (371T/C, rs3749380) in exon 1 with schizophrenia in our case-control study of 2293 Japanese patients with schizophrenia and 2382 Japanese control subjects (allelic p = 0.009). Dual-luciferase assay revealed suppression of transcription activity by exon 1 containing this polymorphism and a statistically significant difference in the promoter activity between the T and C alleles. Conclusions: Our results support the possible association of a GRM7 gene polymorphism with genetic susceptibility to schizophrenia.

AB - Introduction: Glutamate dysfunction has been implicated in the pathophysiology of schizophrenia. The metabotropic glutamate receptors (mGluRs) are G-protein-coupled receptors. GRM7, the gene that encodes mGluR7, is expressed in many regions of the human central nervous system. The GRM7 gene is located on human chromosome 3p26, which has been suggested by linkage analysis to contain a susceptibility locus for schizophrenia. Methods: We screened for mutations in all exons, exon/intron junctions, and promoter regions of the GRM7 gene in Japanese patients with schizophrenia and evaluated associations between the detected polymorphisms and schizophrenia. We examined the influence of one polymorphism associated with schizophrenia on the expression of GRM7 by dual-luciferase assay in transfected cells. Results: Twenty-five polymorphisms/mutations were detected in GRM7. Case-control analysis revealed a potential association of a synonymous polymorphism (371T/C, rs3749380) in exon 1 with schizophrenia in our case-control study of 2293 Japanese patients with schizophrenia and 2382 Japanese control subjects (allelic p = 0.009). Dual-luciferase assay revealed suppression of transcription activity by exon 1 containing this polymorphism and a statistically significant difference in the promoter activity between the T and C alleles. Conclusions: Our results support the possible association of a GRM7 gene polymorphism with genetic susceptibility to schizophrenia.

UR - http://www.scopus.com/inward/record.url?scp=42749089847&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=42749089847&partnerID=8YFLogxK

U2 - 10.1016/j.schres.2008.01.027

DO - 10.1016/j.schres.2008.01.027

M3 - Article

VL - 101

SP - 9

EP - 16

JO - Schizophrenia Research

JF - Schizophrenia Research

SN - 0920-9964

IS - 1-3

ER -