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Mancini V, Saleh MG, Delavari F, Bagautdinova J, Eliez S. Excitatory/Inhibitory Imbalance Underlies Hippocampal Atrophy in Individuals With 22q11.2 Deletion Syndrome With Psychotic Symptoms. Biol Psychiatry 2023; 94:569-579. [PMID: 37011759 DOI: 10.1016/j.biopsych.2023.03.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 03/10/2023] [Accepted: 03/28/2023] [Indexed: 04/05/2023]
Abstract
BACKGROUND Abnormal neurotransmitter levels have been reported in individuals at high risk for schizophrenia, leading to a shift in the excitatory/inhibitory balance. However, it is unclear whether these alterations predate the onset of clinically relevant symptoms. Our aim was to explore in vivo measures of excitatory/inhibitory balance in 22q11.2 deletion carriers, a population at genetic risk for psychosis. METHODS Glx (glutamate+glutamine) and GABA+ (gamma-aminobutyric acid with macromolecules and homocarnosine) concentrations were estimated in the anterior cingulate cortex, superior temporal cortex, and hippocampus using the Mescher-Garwood point-resolved spectroscopy (MEGA-PRESS) sequence and the Gannet toolbox in 52 deletion carriers and 42 control participants. T1-weighted images were acquired longitudinally and processed with FreeSurfer version 6 to extract hippocampal volume. Subgroup analyses were conducted in deletion carriers with psychotic symptoms. RESULTS While no differences were found in the anterior cingulate cortex, deletion carriers had higher levels of Glx in the hippocampus and superior temporal cortex and lower levels of GABA+ in the hippocampus than control participants. We additionally found a higher Glx concentration in the hippocampus of deletion carriers with psychotic symptoms. Finally, more pronounced hippocampal atrophy was significantly associated with increased Glx levels in deletion carriers. CONCLUSIONS We provide evidence for an excitatory/inhibitory imbalance in temporal brain structures of deletion carriers, with a further hippocampal Glx increase in individuals with psychotic symptoms that was associated with hippocampal atrophy. These results are in line with theories proposing abnormally enhanced glutamate levels as a mechanistic explanation for hippocampal atrophy via excitotoxicity. Our results highlight a central role of glutamate in the hippocampus of individuals at genetic risk for schizophrenia.
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Affiliation(s)
- Valentina Mancini
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland.
| | - Muhammad G Saleh
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland
| | - Farnaz Delavari
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland
| | - Joëlle Bagautdinova
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland
| | - Stephan Eliez
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland; Department of Genetic Medicine and Development, University of Geneva School of Medicine, Geneva, Switzerland
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Ren D, Luo B, Chen P, Yu L, Xiong M, Fu Z, Zhou T, Chen WB, Fei E. DiGeorge syndrome critical region gene 2 (DGCR2), a schizophrenia risk gene, regulates dendritic spine development through cell adhesion. Cell Biosci 2023; 13:134. [PMID: 37480133 PMCID: PMC10362570 DOI: 10.1186/s13578-023-01081-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Accepted: 07/06/2023] [Indexed: 07/23/2023] Open
Abstract
BACKGROUND Dendritic spines are the sites of excitatory synapses on pyramidal neurons, and their development is crucial for neural circuits and brain functions. The spine shape, size, or number alterations are associated with neurological disorders, including schizophrenia. DiGeorge syndrome critical region gene 2 (DGCR2) is one of the deleted genes within the 22q11.2 deletion syndrome (22q11DS), which is a high risk for developing schizophrenia. DGCR2 expression was reduced in schizophrenics. However, the pathophysiological mechanism of DGCR2 in schizophrenia or 22q11DS is still unclear. RESULTS Here, we report that DGCR2 expression was increased during the neurodevelopmental period and enriched in the postsynaptic densities (PSDs). DGCR2-deficient hippocampal neurons formed fewer spines. In agreement, glutamatergic transmission and synaptic plasticity were decreased in the hippocampus of DGCR2-deficient mice. Further molecular studies showed that the extracellular domain (ECD) of DGCR2 is responsible for its transcellular interaction with cell adhesion molecule Neurexin1 (NRXN1) and spine development. Consequently, abnormal behaviors, like anxiety, were observed in DGCR2-deficient mice. CONCLUSIONS These observations indicate that DGCR2 is a novel cell adhesion molecule required for spine development and synaptic plasticity, and its deficiency induces abnormal behaviors in mice. This study provides a potential pathophysiological mechanism of DGCR2 in 22q11DS and related mental disorders.
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Affiliation(s)
- Dongyan Ren
- School of Life Sciences, Nanchang University, Nanchang, 330031, China
- Institute of Life Science, Nanchang University, Nanchang, 330031, China
| | - Bin Luo
- Institute of Life Science, Nanchang University, Nanchang, 330031, China
| | - Peng Chen
- Institute of Life Science, Nanchang University, Nanchang, 330031, China
| | - Lulu Yu
- Institute of Life Science, Nanchang University, Nanchang, 330031, China
| | - Mingtao Xiong
- Institute of Life Science, Nanchang University, Nanchang, 330031, China
| | - Zhiqiang Fu
- Institute of Life Science, Nanchang University, Nanchang, 330031, China
| | - Tian Zhou
- School of Basic Medical Sciences, Nanchang University, Nanchang, 330031, China
| | - Wen-Bing Chen
- Institute of Life Science, Nanchang University, Nanchang, 330031, China.
| | - Erkang Fei
- School of Life Sciences, Nanchang University, Nanchang, 330031, China.
- Institute of Life Science, Nanchang University, Nanchang, 330031, China.
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Rahaie Z, Rabiee HR, Alinejad-Rokny H. DeepGenePrior: A deep learning model for prioritizing genes affected by copy number variants. PLoS Comput Biol 2023; 19:e1011249. [PMID: 37486921 PMCID: PMC10399873 DOI: 10.1371/journal.pcbi.1011249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 08/03/2023] [Accepted: 06/06/2023] [Indexed: 07/26/2023] Open
Abstract
The genetic etiology of brain disorders is highly heterogeneous, characterized by abnormalities in the development of the central nervous system that lead to diminished physical or intellectual capabilities. The process of determining which gene drives disease, known as "gene prioritization," is not entirely understood. Genome-wide searches for gene-disease associations are still underdeveloped due to reliance on previous discoveries and evidence sources with false positive or negative relations. This paper introduces DeepGenePrior, a model based on deep neural networks that prioritizes candidate genes in genetic diseases. Using the well-studied Variational AutoEncoder (VAE), we developed a score to measure the impact of genes on target diseases. Unlike other methods that use prior data to select candidate genes, based on the "guilt by association" principle and auxiliary data sources like protein networks, our study exclusively employs copy number variants (CNVs) for gene prioritization. By analyzing CNVs from 74,811 individuals with autism, schizophrenia, and developmental delay, we identified genes that best distinguish cases from controls. Our findings indicate a 12% increase in fold enrichment in brain-expressed genes compared to previous studies and a 15% increase in genes associated with mouse nervous system phenotypes. Furthermore, we identified common deletions in ZDHHC8, DGCR5, and CATG00000022283 among the top genes related to all three disorders, suggesting a common etiology among these clinically distinct conditions. DeepGenePrior is publicly available online at http://git.dml.ir/z_rahaie/DGP to address obstacles in existing gene prioritization studies identifying candidate genes.
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Affiliation(s)
- Zahra Rahaie
- BCB Group, DML, Department of Computer Engineering, Sharif University of Technology, Tehran, Iran
| | - Hamid R. Rabiee
- BCB Group, DML, Department of Computer Engineering, Sharif University of Technology, Tehran, Iran
| | - Hamid Alinejad-Rokny
- UNSW Biomedical Machine Learning Lab (BML), the Graduate School of Biomedical Engineering, UNSW Sydney, Sydney, Australia
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4
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Sun JJ, Chen B, Yu T. Construction of an immune-related ceRNA network to screen for potential diagnostic markers for autism spectrum disorder. Front Genet 2022; 13:1025813. [PMID: 36468003 PMCID: PMC9713698 DOI: 10.3389/fgene.2022.1025813] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 11/04/2022] [Indexed: 12/13/2023] Open
Abstract
Purpose: The diagnosis of autism spectrum disorder (ASD) is reliant on evaluation of patients' behavior. We screened the potential diagnostic and therapeutic targets of ASD through bioinformatics analysis. Methods: Four ASD-related datasets were downloaded from the Gene Expression Omnibus database. The "limma" package was employed to analyze differentially expressed messenger (m)RNAs, long non-coding (lnc)RNAs, and micro (mi)RNAs between ASD patients and healthy volunteers (HVs). We constructed a competing endogenous-RNA (ceRNA) network. Enrichment analyses of key genes were undertaken using the Gene Ontology database and Kyoto Encyclopedia of Genes and Genomes database. The ImmucellAI database was used to analyze differences in immune-cell infiltration (ICI) in ASD and HV samples. Synthetic analyses of the ceRNA network and ICI was done to obtain a diagnostic model using LASSO regression analysis. Analyses of receiver operating characteristic (ROC) curves were done for model verification. Results: The ceRNA network comprised 49 lncRNAs, 30 miRNAs, and 236 mRNAs. mRNAs were associated with 41 cellular components, 208 biological processes, 39 molecular functions, and 35 regulatory signaling pathways. Significant differences in the abundance of 10 immune-cell species between ASD patients and HVs were noted. Using the ceRNA network and ICI results, we constructed a diagnostic model comprising five immune cell-associated genes: adenosine triphosphate-binding cassette transporter A1 (ABCA1), DiGeorge syndrome critical region 2 (DGCR2), glucose-fructose oxidoreductase structural domain gene 1 (GFOD1), glutaredoxin (GLRX), and SEC16 homolog A (SEC16A). The diagnostic performance of our model was revealed by an area under the ROC curve of 0.923. Model verification was done using the validation dataset and serum samples of patients. Conclusion: ABCA1, DGCR2, GFOD1, GLRX, and SEC16A could be diagnostic biomarkers and therapeutic targets for ASD.
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Affiliation(s)
- Jing-Jing Sun
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Bo Chen
- Disabled Service Center of Liaoning Province, Shenyang, Liaoning, China
| | - Tao Yu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
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In Silico Evaluation of Nonsynonymous SNPs in Human ADAM33: The Most Common Form of Genetic Association to Asthma Susceptibility. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:1089722. [DOI: 10.1155/2022/1089722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/09/2022] [Accepted: 10/07/2022] [Indexed: 11/13/2022]
Abstract
ADAM33 is a zinc-dependent metalloprotease of the ADAM family, which plays a vital biological role as an activator of Th2 cytokines and growth factors. Moreover, this protein is crucial for the normal development of the lung in the fetus two months after gestation leading to determining lung functions all over life. In this regard, mutations in ADAM33 have been linked with asthma risk factors. Consequently, identifying ADAM33 pathogenic nonsynonymous single-nucleotide polymorphisms (nsSNPs) can be very important in asthma treatment. In the present study, 1055 nsSNPs of human ADAM33 were analyzed using biocomputational software, 31 of which were found to be detrimental mutations. Precise structural and stability analysis revealed D219V, C669G, and C606S as the most destabilizing SNPs. Furthermore, MD simulations disclosed higher overall fluctuation and alteration in intramolecular interactions compared with the wild-type structure. Overall, the results suggest D219V, C669G, and C606S detrimental mutations as a starting point for further case-control studies on the ADAM33 protein as well as an essential source for future targeted mechanisms.
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Reichmann F, Pilic J, Trajanoski S, Norton WHJ. Transcriptomic underpinnings of high and low mirror aggression zebrafish behaviours. BMC Biol 2022; 20:97. [PMID: 35501893 PMCID: PMC9059464 DOI: 10.1186/s12915-022-01298-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 04/13/2022] [Indexed: 11/10/2022] Open
Abstract
Background Aggression is an adaptive behaviour that animals use to protect offspring, defend themselves and obtain resources. Zebrafish, like many other animals, are not able to recognize themselves in the mirror and typically respond to their own reflection with aggression. However, mirror aggression is not an all-or-nothing phenomenon, with some individuals displaying high levels of aggression against their mirror image, while others show none at all. In the current work, we have investigated the genetic basis of mirror aggression by using a classic forward genetics approach - selective breeding for high and low mirror aggression zebrafish (HAZ and LAZ). Results We characterized AB wild-type zebrafish for their response to the mirror image. Both aggressive and non-aggressive fish were inbred over several generations. We found that HAZ were on average more aggressive than the corresponding LAZ across generations and that the most aggressive adult HAZ were less anxious than the least aggressive adult LAZ after prolonged selective breeding. RNAseq analysis of these fish revealed that hundreds of protein-encoding genes with important diverse biological functions such as arsenic metabolism (as3mt), cell migration (arl4ab), immune system activity (ptgr1), actin cytoskeletal remodelling (wdr1), corticogenesis (dgcr2), protein dephosphorylation (ublcp1), sialic acid metabolism (st6galnac3) and ketone body metabolism (aacs) were differentially expressed between HAZ and LAZ, suggesting a strong genetic contribution to this phenotype. DAVID pathway analysis showed that a number of diverse pathways are enriched in HAZ over LAZ including pathways related to immune function, oxidation-reduction processes and cell signalling. In addition, weighted gene co-expression network analysis (WGCNA) identified 12 modules of highly correlated genes that were significantly associated with aggression duration and/or experimental group. Conclusions The current study shows that selective breeding based of the mirror aggression phenotype induces strong, heritable changes in behaviour and gene expression within the brain of zebrafish suggesting a strong genetic basis for this behaviour. Our transcriptomic analysis of fish selectively bred for high and low levels of mirror aggression revealed specific transcriptomic signatures induced by selective breeding and mirror aggression and thus provides a large and novel resource of candidate genes for future study. Supplementary Information The online version contains supplementary material available at 10.1186/s12915-022-01298-z.
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Affiliation(s)
- Florian Reichmann
- Division of Pharmacology, Otto Loewi Research Center, Medical University of Graz, Graz, Austria.
| | - Johannes Pilic
- Division of Pharmacology, Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Slave Trajanoski
- Center for Medical Research, Medical University of Graz, Graz, Austria
| | - William H J Norton
- Department of Genetics and Genome Biology, College of Life Sciences, University of Leicester, Leicester, UK. .,Department of Genetics, Institute of Biology, ELTE Eötvös Loránd University, Budapest, Hungary.
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Molinard-Chenu A, Godel M, Rey A, Musardo S, Bodogan T, Vutskits L, Bellone C, Dayer A. Down-regulation of the schizophrenia risk-gene Dgcr2 alters early microcircuit development in the mouse medial prefrontal cortex. Int J Dev Neurosci 2022; 82:277-285. [PMID: 35212007 PMCID: PMC9313615 DOI: 10.1002/jdn.10175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 01/22/2022] [Accepted: 02/02/2022] [Indexed: 11/16/2022] Open
Abstract
Alterations in the generation, migration and integration of different subtypes of neurons in the medial prefrontal cortex (mPFC) microcircuit could play an important role in vulnerability to schizophrenia. Using in vivo cell‐type specific manipulation of pyramidal neurons (PNs) progenitors, we aim to investigate the role of the schizophrenia risk‐gene DiGeorge Critical Region 2 (Dgcr2) on cortical circuit formation in the mPFC of developing mice. This report describes how Dgcr2 knock down in upper‐layer PNs impacts the functional maturation of PNs and interneurons (INs) in the mPFC. First, we demonstrate that Dgcr2 knock‐down disrupts laminar positioning, dendritic morphology and excitatory activity of upper‐layer PNs. Interestingly, inhibitory activity is also modified in Dgcr2 knock‐down PNs, suggesting a broader microcircuit alteration involving interneurons. Further analyses show that the histological maturation of parvalbumin (PV) INs is not dramatically impaired, thus implying that other INs subtypes might be at play in the reported microcircuit alteration. Overall, this study unravels how local functional deficits of the early postnatal development of the mPFC can be induced by Dgcr2 knock‐down in PNs.
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Affiliation(s)
- Aude Molinard-Chenu
- Department of Psychiatry, University of Geneva Medical School, Geneva 4, Switzerland.,Department of Basic Neurosciences, University of Geneva Medical School, Geneva 4, Switzerland
| | - Michel Godel
- Department of Psychiatry, University of Geneva Medical School, Geneva 4, Switzerland.,Department of Basic Neurosciences, University of Geneva Medical School, Geneva 4, Switzerland
| | - Alicia Rey
- Department of Psychiatry, University of Geneva Medical School, Geneva 4, Switzerland.,Department of Basic Neurosciences, University of Geneva Medical School, Geneva 4, Switzerland
| | - Stefano Musardo
- Department of Basic Neurosciences, University of Geneva Medical School, Geneva 4, Switzerland
| | - Timea Bodogan
- Department of Basic Neurosciences, University of Geneva Medical School, Geneva 4, Switzerland
| | - Laszlo Vutskits
- Department of Basic Neurosciences, University of Geneva Medical School, Geneva 4, Switzerland.,Department of Anesthesiology, Pharmacology, Intensive Care and Emergency Medicine, University Hospitals of Geneva, Geneva 4, Switzerland
| | - Camilla Bellone
- Department of Basic Neurosciences, University of Geneva Medical School, Geneva 4, Switzerland
| | - Alexandre Dayer
- Department of Psychiatry, University of Geneva Medical School, Geneva 4, Switzerland.,Department of Basic Neurosciences, University of Geneva Medical School, Geneva 4, Switzerland
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Seok H, Deng R, Cowan DB, Wang DZ. Application of CRISPR-Cas9 gene editing for congenital heart disease. Clin Exp Pediatr 2021; 64:269-279. [PMID: 33677855 PMCID: PMC8181018 DOI: 10.3345/cep.2020.02096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 02/15/2021] [Indexed: 12/26/2022] Open
Abstract
Clustered regularly interspaced short palindromic repeats and CRISPR-associated protein 9 (CRISPR-Cas9) is an ancient prokaryotic defense system that precisely cuts foreign genomic DNA under the control of a small number of guide RNAs. The CRISPR-Cas9 system facilitates efficient double-stranded DNA cleavage that has been recently adopted for genome editing to create or correct inherited genetic mutations causing disease. Congenital heart disease (CHD) is generally caused by genetic mutations such as base substitutions, deletions, and insertions, which result in diverse developmental defects and remains a leading cause of birth defects. Pediatric CHD patients exhibit a spectrum of cardiac abnormalities such as septal defects, valvular defects, and abnormal chamber development. CHD onset occurs during the prenatal period and often results in early lethality during childhood. Because CRISPR-Cas9-based genome editing technology has gained considerable attention for its potential to prevent and treat diseases, we will review the CRISPR-Cas9 system as a genome editing tool and focus on its therapeutic application for CHD.
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Affiliation(s)
- Heeyoung Seok
- Department of Life Sciences, Korea University, Seoul, Korea
| | - Rui Deng
- Department of Cardiology, Boston Children's Hospital, Boston, MA, USA.,Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Douglas B Cowan
- Department of Cardiology, Boston Children's Hospital, Boston, MA, USA.,Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Da-Zhi Wang
- Department of Cardiology, Boston Children's Hospital, Boston, MA, USA.,Department of Pediatrics, Harvard Medical School, Boston, MA, USA
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Levchenko A, Kanapin A, Samsonova A, Fedorenko OY, Kornetova EG, Nurgaliev T, Mazo GE, Semke AV, Kibitov AO, Bokhan NA, Gainetdinov RR, Ivanova SA. A genome-wide association study identifies a gene network associated with paranoid schizophrenia and antipsychotics-induced tardive dyskinesia. Prog Neuropsychopharmacol Biol Psychiatry 2021; 105:110134. [PMID: 33065217 DOI: 10.1016/j.pnpbp.2020.110134] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/10/2020] [Accepted: 10/06/2020] [Indexed: 02/06/2023]
Abstract
In the present study we conducted a genome-wide association study (GWAS) in a cohort of 505 patients with paranoid schizophrenia (SCZ), of which 95 had tardive dyskinesia (TD), and 503 healthy controls. Using data generated by the PsychENCODE Consortium (PEC) and other bioinformatic databases, we revealed a gene network, implicated in neurodevelopment and brain function, associated with both these disorders. Almost all these genes are in gene or isoform co-expression PEC network modules important for the functioning of the brain; the activity of these networks is also altered in SCZ, bipolar disorder and autism spectrum disorders. The associated PEC network modules are enriched for gene ontology terms relevant to the brain development and function (CNS development, neuron development, axon ensheathment, synapse, synaptic vesicle cycle, and signaling receptor activity) and to the immune system (inflammatory response). Results of the present study suggest that orofacial and limbtruncal types of TD seem to share the molecular network with SCZ. Paranoid SCZ and abnormal involuntary movements that indicate the orofacial type of TD are associated with the same genomic loci on chromosomes 3p22.2, 8q21.13, and 13q14.2. The limbtruncal type of TD is associated with a locus on chromosome 3p13 where the best functional candidate is FOXP1, a high-confidence SCZ gene. The results of this study shed light on common pathogenic mechanisms for SCZ and TD, and indicate that the pathogenesis of the orofacial and limbtruncal types of TD might be driven by interacting genes implicated in neurodevelopment.
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Affiliation(s)
- Anastasia Levchenko
- Theodosius Dobzhansky Center for Genome Bioinformatics, Saint Petersburg State University, Saint Petersburg, Russia.
| | - Alexander Kanapin
- Theodosius Dobzhansky Center for Genome Bioinformatics, Saint Petersburg State University, Saint Petersburg, Russia
| | - Anastasia Samsonova
- Theodosius Dobzhansky Center for Genome Bioinformatics, Saint Petersburg State University, Saint Petersburg, Russia
| | - Olga Yu Fedorenko
- Mental Health Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia; National Research Tomsk Polytechnic University, Tomsk, Russia
| | - Elena G Kornetova
- Mental Health Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia; Siberian State Medical University, Tomsk, Russia
| | | | - Galina E Mazo
- Department of Endocrine Psychiatry, V.M. Bekhterev National Medical Research Center for Psychiatry and Neurology, Saint Petersburg, Russia
| | - Arkadiy V Semke
- Mental Health Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - Alexander O Kibitov
- Department of Endocrine Psychiatry, V.M. Bekhterev National Medical Research Center for Psychiatry and Neurology, Saint Petersburg, Russia; Laboratory of Molecular Genetics, Serbsky National Medical Research Center on Psychiatry and Addictions, Moscow, Russia
| | - Nikolay A Bokhan
- Mental Health Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia; Siberian State Medical University, Tomsk, Russia; National Research Tomsk State University, Tomsk, Russia
| | - Raul R Gainetdinov
- Institute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg, Russia
| | - Svetlana A Ivanova
- Mental Health Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia; National Research Tomsk Polytechnic University, Tomsk, Russia; Siberian State Medical University, Tomsk, Russia
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Qin X, Chen J, Zhou T. 22q11.2 deletion syndrome and schizophrenia. Acta Biochim Biophys Sin (Shanghai) 2020; 52:1181-1190. [PMID: 33098288 DOI: 10.1093/abbs/gmaa113] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 08/16/2020] [Accepted: 08/17/2020] [Indexed: 12/22/2022] Open
Abstract
22q11.2 deletion is a common microdeletion that causes an array of developmental defects including 22q11.2 deletion syndrome (22q11DS) or DiGeorge syndrome and velocardiofacial syndrome. About 30% of patients with 22q11.2 deletion develop schizophrenia. Mice with deletion of the ortholog region in mouse chromosome 16qA13 exhibit schizophrenia-like abnormal behaviors. It is suggested that the genes deleted in 22q11DS are involved in the pathogenesis of schizophrenia. Among these genes, COMT, ZDHHC8, DGCR8, and PRODH have been identified as schizophrenia susceptibility genes. And DGCR2 is also found to be associated with schizophrenia. In this review, we focused on these five genes and reviewed their functions in the brain and the potential pathophysiological mechanisms in schizophrenia, which will give us a deeper understanding of the pathology of schizophrenia.
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Affiliation(s)
- Xianzheng Qin
- Queen Mary School of Nanchang University, Nanchang University, Nanchang 330031, China
| | - Jiang Chen
- Laboratory of Synaptic Development and Plasticity, Institute of Life Science, Nanchang University, Nanchang 330031, China
| | - Tian Zhou
- School of Basic Medical Sciences, Nanchang University, Nanchang 330031, China
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11
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Mancini V, Sandini C, Padula MC, Zöller D, Schneider M, Schaer M, Eliez S. Positive psychotic symptoms are associated with divergent developmental trajectories of hippocampal volume during late adolescence in patients with 22q11DS. Mol Psychiatry 2020; 25:2844-2859. [PMID: 31164700 DOI: 10.1038/s41380-019-0443-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 05/04/2019] [Accepted: 05/13/2019] [Indexed: 12/17/2022]
Abstract
Low hippocampal volume is a consistent finding in schizophrenia and across the psychosis spectrum. However, there is a lack of studies investigating longitudinal hippocampal development and its relationship with psychotic symptoms. The 22q11.2 deletion syndrome (22q11DS) has proven to be a remarkable model for the prospective study of individuals at high risk of schizophrenia to unravel the pathophysiological processes predating the onset of psychosis. Repeated cerebral MRIs were acquired from 140 patients with 22q11DS (53 experiencing moderate-to-severe psychotic symptoms) and 135 healthy controls aged from 6 to 35 years and with up to 5 time points per participant. Hippocampal subfield analysis was conducted using FreeSurfer-v.6 and FIRST-FSL. Then, whole hippocampal and subfield volumes were compared across the groups. Relative to controls, patients with 22q11DS showed a remarkably lower volume of all subfields except for CA2/3. No divergent trajectories in hippocampal development were found. When comparing patients with 22q11DS exhibiting psychotic symptoms to those without psychosis, we detected a volume decrease during late adolescence, starting in CA1 and spreading to other subfields. Our findings suggested that hippocampal volume is consistently smaller in patients with 22q11DS. Moreover, we have demonstrated that patients with 22q11DS and psychotic symptoms undergo a further decrease in volume during adolescence, a vulnerable period for the emergence of psychosis. Interestingly, CA2/3, despite being affected in patients with psychotic symptoms, was the only area not reduced in patients with 22q11DS relative to controls, thus suggesting that its atrophy exclusively correlates with the presence of positive psychotic symptoms.
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Affiliation(s)
- Valentina Mancini
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland.
| | - Corrado Sandini
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland
| | - Maria C Padula
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland.,Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland
| | - Daniela Zöller
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland.,Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Maude Schneider
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland.,Department of Neuroscience, Center for Contextual Psychiatry, Research Group Psychiatry, KU Leuven, Leuven, Belgium
| | - Marie Schaer
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland
| | - Stephan Eliez
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland.,Department of Genetic Medicine and Development, University of Geneva School of Medicine, Geneva, Switzerland
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12
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Molinard-Chenu A, Fluss J, Laurent S, Laurent M, Guipponi M, Dayer AG. MCF2 is linked to a complex perisylvian syndrome and affects cortical lamination. Ann Clin Transl Neurol 2019; 7:121-125. [PMID: 31846234 PMCID: PMC6952308 DOI: 10.1002/acn3.50949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/20/2019] [Accepted: 10/22/2019] [Indexed: 01/16/2023] Open
Abstract
The combination of congenital bilateral perisylvian syndrome (CBPS) with lower motor neuron dysfunction remains unusual and suggests a potential common genetic insult affecting basic neurodevelopmental processes. Here we identify a putatively pathogenic missense mutation in the MCF2 gene in a boy with CBPS. Using in utero electroporation to genetically manipulate cortical neurons during corticogenesis, we demonstrate that the mouse Mcf2 gene controls the embryonic migration of cortical projection neurons. Strikingly, we find that the CBPS-associated MCF2 mutation impairs cortical laminar positioning, supporting the hypothesis that alterations in the process of embryonic neuronal migration can lead to rare cases of CBPS.
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Affiliation(s)
- Aude Molinard-Chenu
- Department of Psychiatry, University of Geneva Medical School, Geneva, 4 CH-1211, Switzerland.,Department of Basic Neurosciences, University of Geneva Medical School, Geneva, 4 CH-1211, Switzerland.,Institute of Genetics and Genomics in Geneva (IGe3), University of Geneva Medical Center (CMU), Geneva, 4 CH-1211, Switzerland
| | - Joël Fluss
- Pediatric Neurology Unit, Pediatric Subspecialties Service, University Hospitals of Geneva, Geneva, Switzerland
| | - Sacha Laurent
- Service of Genetic Medicine, University Hospitals of Geneva, Geneva, Switzerland
| | - Méryle Laurent
- Pediatric Radiology Unit, University Hospitals of Geneva, Geneva, Switzerland
| | - Michel Guipponi
- Service of Genetic Medicine, University Hospitals of Geneva, Geneva, Switzerland.,Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
| | - Alexandre G Dayer
- Department of Psychiatry, University of Geneva Medical School, Geneva, 4 CH-1211, Switzerland.,Department of Basic Neurosciences, University of Geneva Medical School, Geneva, 4 CH-1211, Switzerland.,Institute of Genetics and Genomics in Geneva (IGe3), University of Geneva Medical Center (CMU), Geneva, 4 CH-1211, Switzerland
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13
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Hiroi N, Yamauchi T. Modeling and Predicting Developmental Trajectories of Neuropsychiatric Dimensions Associated With Copy Number Variations. Int J Neuropsychopharmacol 2019; 22:488-500. [PMID: 31135887 PMCID: PMC6672556 DOI: 10.1093/ijnp/pyz026] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/20/2019] [Accepted: 05/24/2019] [Indexed: 01/23/2023] Open
Abstract
Copy number variants, such as duplications and hemizygous deletions at chromosomal loci of up to a few million base pairs, are highly associated with psychiatric disorders. Hemizygous deletions at human chromosome 22q11.2 were found to be associated with elevated instances of schizophrenia and autism spectrum disorder in 1992 and 2002, respectively. Following these discoveries, many mouse models have been developed and tested to analyze the effects of gene dose alterations in small chromosomal segments and single genes of 22q11.2. Despite several limitations to modeling mental illness in mice, mouse models have identified several genes on 22q11.2-Tbx1, Dgcr8, Comt, Sept5, and Prodh-that contribute to dimensions of autism spectrum disorder and schizophrenia, including working memory, social communication and interaction, and sensorimotor gating. Mouse studies have identified that heterozygous deletion of Tbx1 results in defective social communication during the neonatal period and social interaction deficits during adolescence/adulthood. Overexpression of Tbx1 or Comt in adult neural progenitor cells in the hippocampus delays the developmental maturation of working memory capacity. Collectively, mouse models of variants of these 4 genes have revealed several potential neuronal mechanisms underlying various aspects of psychiatric disorders, including adult neurogenesis, microRNA processing, catecholamine metabolism, and synaptic transmission. The validity of the mouse data would be ultimately tested when therapies or drugs based on such potential mechanisms are applied to humans.
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Affiliation(s)
- Noboru Hiroi
- Department of Psychiatry and Behavioral Sciences, Albert Einstein College of Medicine, Bronx, New York
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York
- Department of Genetics, Albert Einstein College of Medicine, Bronx, New York
| | - Takahira Yamauchi
- Department of Psychiatry and Behavioral Sciences, Albert Einstein College of Medicine, Bronx, New York
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14
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Motahari Z, Moody SA, Maynard TM, LaMantia AS. In the line-up: deleted genes associated with DiGeorge/22q11.2 deletion syndrome: are they all suspects? J Neurodev Disord 2019; 11:7. [PMID: 31174463 PMCID: PMC6554986 DOI: 10.1186/s11689-019-9267-z] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 04/21/2019] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND 22q11.2 deletion syndrome (22q11DS), a copy number variation (CNV) disorder, occurs in approximately 1:4000 live births due to a heterozygous microdeletion at position 11.2 (proximal) on the q arm of human chromosome 22 (hChr22) (McDonald-McGinn and Sullivan, Medicine 90:1-18, 2011). This disorder was known as DiGeorge syndrome, Velo-cardio-facial syndrome (VCFS) or conotruncal anomaly face syndrome (CTAF) based upon diagnostic cardiovascular, pharyngeal, and craniofacial anomalies (McDonald-McGinn and Sullivan, Medicine 90:1-18, 2011; Burn et al., J Med Genet 30:822-4, 1993) before this phenotypic spectrum was associated with 22q11.2 CNVs. Subsequently, 22q11.2 deletion emerged as a major genomic lesion associated with vulnerability for several clinically defined behavioral deficits common to a number of neurodevelopmental disorders (Fernandez et al., Principles of Developmental Genetics, 2015; Robin and Shprintzen, J Pediatr 147:90-6, 2005; Schneider et al., Am J Psychiatry 171:627-39, 2014). RESULTS The mechanistic relationships between heterozygously deleted 22q11.2 genes and 22q11DS phenotypes are still unknown. We assembled a comprehensive "line-up" of the 36 protein coding loci in the 1.5 Mb minimal critical deleted region on hChr22q11.2, plus 20 protein coding loci in the distal 1.5 Mb that defines the 3 Mb typical 22q11DS deletion. We categorized candidates based upon apparent primary cell biological functions. We analyzed 41 of these genes that encode known proteins to determine whether haploinsufficiency of any single 22q11.2 gene-a one gene to one phenotype correspondence due to heterozygous deletion restricted to that locus-versus complex multigenic interactions can account for single or multiple 22q11DS phenotypes. CONCLUSIONS Our 22q11.2 functional genomic assessment does not support current theories of single gene haploinsufficiency for one or all 22q11DS phenotypes. Shared molecular functions, convergence on fundamental cell biological processes, and related consequences of individual 22q11.2 genes point to a matrix of multigenic interactions due to diminished 22q11.2 gene dosage. These interactions target fundamental cellular mechanisms essential for development, maturation, or homeostasis at subsets of 22q11DS phenotypic sites.
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Affiliation(s)
- Zahra Motahari
- The Institute for Neuroscience, and Department of Anatomy and Cell Biology, The George Washington University School of Medicine and Health Sciences, Washington DC, 20037 USA
| | - Sally Ann Moody
- The Institute for Neuroscience, and Department of Anatomy and Cell Biology, The George Washington University School of Medicine and Health Sciences, Washington DC, 20037 USA
| | - Thomas Michael Maynard
- The Institute for Neuroscience, and Department of Anatomy and Cell Biology, The George Washington University School of Medicine and Health Sciences, Washington DC, 20037 USA
| | - Anthony-Samuel LaMantia
- The Institute for Neuroscience, and Department of Anatomy and Cell Biology, The George Washington University School of Medicine and Health Sciences, Washington DC, 20037 USA
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15
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Alteration of miRNA-mRNA interactions in lymphocytes of individuals with schizophrenia. J Psychiatr Res 2019; 112:89-98. [PMID: 30870714 DOI: 10.1016/j.jpsychires.2019.02.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 02/17/2019] [Accepted: 02/26/2019] [Indexed: 12/11/2022]
Abstract
The aetiology of schizophrenia is complex, heterogeneous, and involves interplay of many genetic and environmental influences. While significant progress has been made in the understanding the common heritable component, we are still grappling with the genomic encoding of environmental risk. One class of molecule that has tremendous potential is miRNA. These molecules are regulated by genetic and environmental factors associated with schizophrenia and have a very significant impact on temporospatial patterns of gene expression. To better understand the relationship between miRNA and gene expression in the disorder we analysed these molecules in RNA isolated from peripheral blood mononuclear cells (PBMCs) obtained from an Australian cohort of 36 individuals with schizophrenia and 15 healthy controls using next-generation RNA sequencing. Significant changes in both mRNA and miRNA expression profiles were observed implicating important interaction networks involved in immune activity and development. We also observed sexual dimorphism, particularly in relation to variation in mRNA, with males showing significantly more differentially expressed genes. Interestingly, while we explored expression in lymphocytes, the systems biology of miRNA-mRNA interactions was suggestive of significant pleiotropy with enrichment of networks related to neuronal activity.
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16
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Belangero SI, Ota VK, Gadelha A, Berberian AA, Assunção-Leme IBD, Noto C, Christofolini DM, Bellucco FT, Santoro ML, Mazzotti DR, Zugman A, Melaragno MI, Smith MAC, Pellegrino R, Hakonarson H, Cordeiro Q, Moretti PN, Bressan RA, Mari JDJ, Jackowski AP. DGCR2 influences cortical thickness through a mechanism independent of schizophrenia pathogenesis. Psychiatry Res 2019; 274:391-394. [PMID: 30901624 DOI: 10.1016/j.psychres.2019.02.068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 01/03/2019] [Accepted: 02/27/2019] [Indexed: 01/17/2023]
Abstract
We investigated the role of DGCR2, a corticogenesis-related gene, on schizophrenia (SZ) and its subphenotypes, including brain morphology. A total of 221 SZ patients, 263 controls and 70 antipsychotic-naïve first episode of psychosis (FEP) were genotyped for 17 DGCR2 polymorphisms. While no association between DGCR2 polymorphisms and SZ was found, the missense variant rs2072123 was associated to left rostral anterior cingulate thickness, showing that DGCR2 seems not to be associated directly with the SZ but might be influencing the brain morphology. We also showed a DGCR2 downregulation in SZ patients when compared to controls and FEP.
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Affiliation(s)
- Sintia Iole Belangero
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil; Laboratório Interdisciplinar de Neurociências Clínicas (LiNC), Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil.
| | - Vanessa Kiyomi Ota
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Ary Gadelha
- Laboratório Interdisciplinar de Neurociências Clínicas (LiNC), Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil; Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Arthur Almeida Berberian
- Laboratório Interdisciplinar de Neurociências Clínicas (LiNC), Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil; Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Idaiane Batista de Assunção-Leme
- Laboratório Interdisciplinar de Neurociências Clínicas (LiNC), Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil; Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Cristiano Noto
- Laboratório Interdisciplinar de Neurociências Clínicas (LiNC), Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil; Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Denise Maria Christofolini
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil; Department of Collective Health, Faculdade de Medicina do ABC, Human Reproduction and Genetic Center, Santo André, Brazil
| | - Fernanda Teixeira Bellucco
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Marcos Leite Santoro
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil; Laboratório Interdisciplinar de Neurociências Clínicas (LiNC), Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil; Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Diego Robles Mazzotti
- Center for Sleep and Circadian Neurobiology, University of Pennsylvania, Philadelphia, PA, United States
| | - André Zugman
- Laboratório Interdisciplinar de Neurociências Clínicas (LiNC), Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil; Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Maria Isabel Melaragno
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Marilia Arruda Cardoso Smith
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Renata Pellegrino
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Hakon Hakonarson
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Quirino Cordeiro
- Departamento de Psiquiatria, Santa Casa School of Medical Sciences, São Paulo, Brazil
| | - Patricia Natalia Moretti
- Disciplina de Genética, Departamento de Morfologia e Genética, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil; Faculdade de Medicina, Universidade de Brasília (UNB), Brasília, Brazil
| | - Rodrigo Affonseca Bressan
- Laboratório Interdisciplinar de Neurociências Clínicas (LiNC), Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil; Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Jair de Jesus Mari
- Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
| | - Andrea Parolin Jackowski
- Laboratório Interdisciplinar de Neurociências Clínicas (LiNC), Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil; Departamento de Psiquiatria, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
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17
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Russo P, Prinzi G, Proietti S, Lamonaca P, Frustaci A, Boccia S, Amore R, Lorenzi M, Onder G, Marzetti E, Valdiglesias V, Guadagni F, Valente MG, Cascio GL, Fraietta S, Ducci G, Bonassi S. Shorter telomere length in schizophrenia: Evidence from a real-world population and meta-analysis of most recent literature. Schizophr Res 2018; 202:37-45. [PMID: 30001973 DOI: 10.1016/j.schres.2018.07.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 06/05/2018] [Accepted: 07/03/2018] [Indexed: 02/07/2023]
Abstract
Schizophrenia is a severe, chronic mental disorder. Schizophrenia is visualized as an accelerated cellular aging syndrome characterized by early onset of cardiovascular disease causing premature mortality. In human aging involves alterations in telomere length (TL). To investigate the presence of TL shortening in schizophrenia and psychiatric syndromes associated, this condition was studied in leukocytes (LTL) of a sample of patients suffering from schizophrenia and other psychotic disorders, and compared with a group of non-psychiatric controls. We explored the relationship between LTL and age, gender, and smoking habit with the aim to control whether these potential confounding factors may influence the rate of telomeres shortening. We also performed a new comprehensive meta-analysis including studies on LTL in schizophrenia patients compared to healthy subjects published in the last two years and the results of the present study. Our results suggest that a diagnosis of schizophrenia, more than gender, age, cigarette smoking or alcohol drinking, is the most important condition responsible of the LTL shortening. A strong LTL shortening was observed in patients affected by schizophrenia, Schizoaffective disorder, and Psychosis not otherwise specified when they were younger than 50 years, while in the group of older subjects no major differences were observed. Additional evidence supporting the causal link of schizophrenia with accelerated telomeres shortening came from the analysis of the updated meta-analysis. The availability of a personalized profile of mechanistic pathways, risk factors, and clinical features may pose the basis for a rehabilitative treatment addressing individual needs of the psychiatric patients.
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Affiliation(s)
- Patrizia Russo
- Unit of Clinical and Molecular Epidemiology, IRCCS San Raffaele Pisana, Via di Val Cannuta 247, 00166, RM, Italy
| | - Giulia Prinzi
- Unit of Clinical and Molecular Epidemiology, IRCCS San Raffaele Pisana, Via di Val Cannuta 247, 00166, RM, Italy
| | - Stefania Proietti
- Scientific Direction, IRCCS San Raffaele Pisana, Via di Val Cannuta 247, 00166, RM, Italy
| | - Palma Lamonaca
- Unit of Clinical and Molecular Epidemiology, IRCCS San Raffaele Pisana, Via di Val Cannuta 247, 00166, RM, Italy
| | - Alessandra Frustaci
- Specialist Services-Eating Disorders, Barnet and Enfield and Haringey Mental Health NHS Trust, St. Ann's Hospitals, St. Ann's Road, N15 3TH, London, UK
| | - Stefania Boccia
- Section of Hygiene-Institute of Public Health, Università Cattolica del Sacro Cuore, Fondazione Policlinico Agostino Gemelli, Largo Agostino Gemelli, 8, 00168, RM, Italy
| | - Rosarita Amore
- Section of Hygiene-Institute of Public Health, Università Cattolica del Sacro Cuore, Fondazione Policlinico Agostino Gemelli, Largo Agostino Gemelli, 8, 00168, RM, Italy
| | - Maria Lorenzi
- Department of Geriatrics, Neurosciences and Orthopedics, Università Cattolica del Sacro Cuore, Fondazione Policlinico Agostino Gemelli, Largo Agostino Gemelli, 8, 00168, RM, Italy
| | - Graziano Onder
- Department of Geriatrics, Neurosciences and Orthopedics, Università Cattolica del Sacro Cuore, Fondazione Policlinico Agostino Gemelli, Largo Agostino Gemelli, 8, 00168, RM, Italy
| | - Emanuele Marzetti
- Department of Geriatrics, Neurosciences and Orthopedics, Università Cattolica del Sacro Cuore, Fondazione Policlinico Agostino Gemelli, Largo Agostino Gemelli, 8, 00168, RM, Italy
| | - Vanessa Valdiglesias
- DICOMOSA Group, Department of Psychology, Universidade de A Coruña, Campus Elviña, s/n -15071, A Coruña, Spain
| | - Fiorella Guadagni
- Interinstitutional Multidisciplinary Biobank (BioBIM), IRCCS San Raffaele Pisana, Via di Val Cannuta 247, 00166, RM, Italy; San Raffaele University, Via di Val Cannuta 247, 00166, RM, Italy
| | - Maria Giovanna Valente
- Interinstitutional Multidisciplinary Biobank (BioBIM), IRCCS San Raffaele Pisana, Via di Val Cannuta 247, 00166, RM, Italy
| | - Gerland Lo Cascio
- San Raffaele Montecompatri, Via San Silvestro 67, 00077 Montecompatri, RM, Italy
| | - Sara Fraietta
- Mental Health Department, ASL Roma 1, Piazza Santa Maria della Pietà 5, RM, 00135, Italy
| | - Giuseppe Ducci
- Mental Health Department, ASL Roma 1, Piazza Santa Maria della Pietà 5, RM, 00135, Italy
| | - Stefano Bonassi
- Unit of Clinical and Molecular Epidemiology, IRCCS San Raffaele Pisana, Via di Val Cannuta 247, 00166, RM, Italy; San Raffaele University, Via di Val Cannuta 247, 00166, RM, Italy.
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