Monozygotic twins discordant for schizophrenia differ in maturation and synaptic transmission.


Journal

Molecular psychiatry
ISSN: 1476-5578
Titre abrégé: Mol Psychiatry
Pays: England
ID NLM: 9607835

Informations de publication

Date de publication:
04 May 2024
Historique:
received: 17 05 2022
accepted: 12 04 2024
revised: 01 04 2024
medline: 5 5 2024
pubmed: 5 5 2024
entrez: 4 5 2024
Statut: aheadofprint

Résumé

Schizophrenia affects approximately 1% of the world population. Genetics, epigenetics, and environmental factors are known to play a role in this psychiatric disorder. While there is a high concordance in monozygotic twins, about half of twin pairs are discordant for schizophrenia. To address the question of how and when concordance in monozygotic twins occur, we have obtained fibroblasts from two pairs of schizophrenia discordant twins (one sibling with schizophrenia while the second one is unaffected by schizophrenia) and three pairs of healthy twins (both of the siblings are healthy). We have prepared iPSC models for these 3 groups of patients with schizophrenia, unaffected co-twins, and the healthy twins. When the study started the co-twins were considered healthy and unaffected but both the co-twins were later diagnosed with a depressive disorder. The reprogrammed iPSCs were differentiated into hippocampal neurons to measure the neurophysiological abnormalities in the patients. We found that the neurons derived from the schizophrenia patients were less arborized, were hypoexcitable with immature spike features, and exhibited a significant reduction in synaptic activity with dysregulation in synapse-related genes. Interestingly, the neurons derived from the co-twin siblings who did not have schizophrenia formed another distinct group that was different from the neurons in the group of the affected twin siblings but also different from the neurons in the group of the control twins. Importantly, their synaptic activity was not affected. Our measurements that were obtained from schizophrenia patients and their monozygotic twin and compared also to control healthy twins point to hippocampal synaptic deficits as a central mechanism in schizophrenia.

Identifiants

pubmed: 38704507
doi: 10.1038/s41380-024-02561-1
pii: 10.1038/s41380-024-02561-1
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Subventions

Organisme : Israel Science Foundation (ISF)
ID : 3252/21

Informations de copyright

© 2024. The Author(s).

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Auteurs

Shani Stern (S)

Sagol Department of Neurobiology, Faculty of Natural Sciences, University of Haifa, Haifa, Israel. sstern@univ.haifa.ac.il.

Lei Zhang (L)

Laboratory of Genetics, The Salk Institute for Biological Studies, La Jolla, CA, USA.

Meiyan Wang (M)

Laboratory of Genetics, The Salk Institute for Biological Studies, La Jolla, CA, USA.

Rebecca Wright (R)

Laboratory of Genetics, The Salk Institute for Biological Studies, La Jolla, CA, USA.

Idan Rosh (I)

Sagol Department of Neurobiology, Faculty of Natural Sciences, University of Haifa, Haifa, Israel.

Yara Hussein (Y)

Sagol Department of Neurobiology, Faculty of Natural Sciences, University of Haifa, Haifa, Israel.

Tchelet Stern (T)

Sagol Department of Neurobiology, Faculty of Natural Sciences, University of Haifa, Haifa, Israel.

Ashwani Choudhary (A)

Sagol Department of Neurobiology, Faculty of Natural Sciences, University of Haifa, Haifa, Israel.

Utkarsh Tripathi (U)

Sagol Department of Neurobiology, Faculty of Natural Sciences, University of Haifa, Haifa, Israel.

Patrick Reed (P)

Laboratory of Genetics, The Salk Institute for Biological Studies, La Jolla, CA, USA.

Hagit Sadis (H)

Sagol Department of Neurobiology, Faculty of Natural Sciences, University of Haifa, Haifa, Israel.

Ritu Nayak (R)

Sagol Department of Neurobiology, Faculty of Natural Sciences, University of Haifa, Haifa, Israel.

Aviram Shemen (A)

Sagol Department of Neurobiology, Faculty of Natural Sciences, University of Haifa, Haifa, Israel.

Karishma Agarwal (K)

Sagol Department of Neurobiology, Faculty of Natural Sciences, University of Haifa, Haifa, Israel.

Diogo Cordeiro (D)

Sagol Department of Neurobiology, Faculty of Natural Sciences, University of Haifa, Haifa, Israel.

David Peles (D)

Sagol Department of Neurobiology, Faculty of Natural Sciences, University of Haifa, Haifa, Israel.

Yuqing Hang (Y)

Razavi Newman Integrative Genomics and Bioinformatics Core, Salk Institute for Biological Studies, La Jolla, CA, USA.

Ana P D Mendes (APD)

Laboratory of Genetics, The Salk Institute for Biological Studies, La Jolla, CA, USA.

Tithi D Baul (TD)

Department of Psychiatry at the Boston Medical Center, Boston, MA, USA.

Julien G Roth (JG)

Institute for Stem Cell Biology & Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA.

Shashank Coorapati (S)

Laboratory of Genetics, The Salk Institute for Biological Studies, La Jolla, CA, USA.

Marco P Boks (MP)

Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht University, Heidelberglaan 100, 3584CX, Utrecht, The Netherlands.

W Richard McCombie (WR)

Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, NY, USA.

Hilleke Hulshoff Pol (H)

Department of Psychiatry, University Medical Center Utrecht Brain Center, Utrecht University, Heidelberglaan 100, 3584CX, Utrecht, The Netherlands.
Department of Experimental Psychology, Utrecht University, Heidelberglaan 1, 3584CS, Utrecht, The Netherlands.

Kristen J Brennand (KJ)

Nash Family Department of Neuroscience, Friedman Brain Institute, Pamela Sklar Division of Psychiatric Genomics, Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
Department of Psychiatry, Department of Genetics, Yale Stem Cell Center, Yale University School of Medicine, New Haven, CT, 06511, USA.

János M Réthelyi (JM)

Molecular Psychiatry Research Group and Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary.

René S Kahn (RS)

Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Mental Illness Research, Education and Clinical Center, James J Peters VA Medical Center, New York, NY, USA.

Maria C Marchetto (MC)

Department of Anthropology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA.

Fred H Gage (FH)

Laboratory of Genetics, The Salk Institute for Biological Studies, La Jolla, CA, USA. gage@salk.edu.

Classifications MeSH