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MIR137 polygenic risk for schizophrenia and ephrin-regulated pathway: Role in lateral ventricles and corpus callosum volume

  • G. A. M. Blokland*
  • , N. Maleki
  • , J. Jovicich
  • , R. I. Mesholam-Gately
  • , L. E. DeLisi
  • , J. A. Turner
  • , M. E. Shenton
  • , A. N. Voineskos
  • , R. S. Kahn
  • , J. L. Roffman
  • , D. J. Holt
  • , S. Ehrlich
  • , Z. Kikinis
  • , P. Dazzan
  • , R. M. Murray
  • , J. Lee
  • , K. Sim
  • , M. Lam
  • , S. M. C. de Zwarte
  • , E. Walton
  • S. Kelly, M. M. Picchioni, E. Bramon, N. Makris, A. S. David, V. Mondelli, A. A. T. S. Reinders, E. Oykhman, D. W. Morris, M. Gill, A. P. Corvin, W. Cahn, N. Ho, J. Liu, R. L. Gollub, D. S. Manoach, V. D. Calhoun, S. R. Sponheim, S. L. Buka, S. Cherkerzian, H. W. Thermenos, E. W. Dickie, S. Ciufolini, T. Reis Marques, N. A. Crossley, S. M. Purcell, J. W. Smoller, N. E. M. van Haren, T. Toulopoulou, G. Donohoe, J. M. Goldstein, M. S. Keshavan, T. L. Petryshen, E. C. del Re*
*Corresponding author for this work
  • Institute for Public Health Genomics (IPHG), Department of Genetics and Cell Biology, Research Institute GROW, University of Maastricht, Maastricht, The Netherlands;
  • Massachusetts General Hospital
  • Harvard University
  • Broad Institute
  • University of Trento
  • Beth Israel Deaconess Medical Center
  • Cambridge Health Alliance
  • Ohio State University
  • Brigham and Women’s Hospital
  • VA Medical Center
  • Centre for Addiction and Mental Health
  • University of Toronto
  • University Medical Center Utrecht
  • Technische Universität Dresden
  • King's College London
  • South London and Maudsley NHS Foundation Trust
  • Singapore Institute of Mental Health
  • Zucker Hillside Hospital
  • University of Bath, Department of Psychology
  • University of Southern California
  • Trinity College Dublin
  • University College London
  • University of Galway
  • Agency for Science, Technology and Research, Singapore
  • Georgia Institute of Technology
  • University of Minnesota Twin Cities
  • Brown University
  • Icahn School of Medicine at Mount Sinai
  • Erasmus MC
  • Bilkent University
  • National and Kapodistrian University of Athens
  • Department of Neurology, Stroke Institute, University of Pittsburgh Medical Center, Pittsburgh, PA, USA

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Background/Objective. Enlarged lateral ventricle (LV) volume and decreased volume in the corpus callosum (CC) are hallmarks of schizophrenia (SZ). We previously showed an inverse correlation between LV and CC volumes in SZ, with global functioning decreasing with increased LV volume. This study investigates the relationship between LV volume, CC abnormalities, and the microRNA MIR137 and its regulated genes in SZ, because of MIR137’s essential role in neurodevelopment. Methods. Participants were 1224 SZ probands and 1466 unaffected controls from the GENUS Consortium. Brain MRI scans, genotype, and clinical data were harmonized across cohorts and employed in the analyses. Results. Increased LV volumes and decreased CC central, mid-anterior, and mid-posterior volumes were observed in SZ probands. The MIR137-regulated ephrin pathway was significantly associated with CC:LV ratio, explaining a significant proportion (3.42 %) of CC:LV variance, and more than for LV and CC separately. Other pathways explained variance in either CC or LV, but not both. CC:LV ratio was also positively correlated with Global Assessment of Functioning, supporting previous subsample findings. SNP-based heritability estimates were higher for CC central:LV ratio (0.79) compared to CC or LV separately. Discussion. Our results indicate that the CC:LV ratio is highly heritable, influenced in part by variation in the MIR137-regulated ephrin pathway. Findings suggest that the CC:LV ratio may be a risk indicator in SZ that correlates with global functioning.
Original languageEnglish
Article number100458
JournalInternational Journal of Clinical and Health Psychology
Volume24
Issue number2
DOIs
Publication statusPublished - 1 Apr 2024
Externally publishedYes

Keywords

  • Corpus callosum
  • Ephrin pathway
  • Lateral ventricles
  • MIR137
  • Polygenic risk score
  • Schizophrenia

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