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Jin M, Xie M, Dong L, Xue F, Li W, Jiang L, Li J, Zhang M, Song H, Lu Q, Yu Q. Exploration of Positive and Negative Schizophrenia Symptom Heterogeneity and Establishment of Symptom-Related miRNA-mRNA Regulatory Network: Based on Transcriptome Sequencing Data. Mol Neurobiol 2024; 61:5992-6012. [PMID: 38267752 DOI: 10.1007/s12035-024-03942-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 01/10/2024] [Indexed: 01/26/2024]
Abstract
Schizophrenia (SCZ) symptoms can be classified as positive and negative ones, each of which has distinct traits and possibly differences in gene expression and regulation. The co-expression networks linked to PANSS (Positive and Negative Syndrome Scale) scores were identified by weighted gene co-expression network analysis (WGCNA) using the expression profiles of miRNA and mRNA in the peripheral blood of first-episode SCZ patients. The heterogeneity between positive and negative symptoms was demonstrated using gene functional enrichment, gene-medication interaction, and immune cell composition analysis. Then, target gene prediction and correlation analysis of miRNA and mRNA constructed a symptom-related miRNA-mRNA regulatory network, screened regulatory pairs, and predicted binding sites. A total of six mRNA co-expression modules, two miRNA co-expression modules, and ten hub genes were screened to be significantly associated with positive symptoms; five mRNA co-expression modules and eight hub genes were correlated with negative symptoms. Positive symptom-related modules were significantly enriched in axon guidance, actin skeleton regulation, and sphingolipid signaling pathway, while negative symptom-related modules were significantly enriched in adaptive immune response, leukocyte migration, dopaminergic synapses, etc. The development of positive symptoms may have been influenced by potential regulatory pairings such as miR-98-5p-EIF3J, miR-98-5p-SOCS4, let-7b-5p-CLUH, miR-454-3p-GTF2H1, and let-7b-5p-SNX17. Additionally, immune cells were substantially connected with several hub genes for symptoms. Positive and negative symptoms in SCZ individuals were heterogeneous to some extent. miRNAs such as let-7b-5p and miR-98-5p might contribute to the incidence of positive symptoms by targeting mRNAs, while the immune system's role in developing negative symptoms may be more nuanced.
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Affiliation(s)
- Mengdi Jin
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun, 130021, China
| | - Mengtong Xie
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun, 130021, China
| | - Lin Dong
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun, 130021, China
| | - Fengyu Xue
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun, 130021, China
| | - Weizhen Li
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun, 130021, China
| | - Lintong Jiang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun, 130021, China
| | - Junnan Li
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun, 130021, China
| | - Min Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun, 130021, China
| | - Haideng Song
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun, 130021, China
| | - Qingxing Lu
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun, 130021, China
| | - Qiong Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, 1163 Xinmin Street, Changchun, 130021, China.
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Alvarez-Herrera S, Rosel Vales M, Pérez-Sánchez G, Becerril-Villanueva E, Flores-Medina Y, Maldonado-García JL, Saracco-Alvarez R, Escamilla R, Pavón L. Risperidone Decreases Expression of Serotonin Receptor-2A (5-HT2A) and Serotonin Transporter (SERT) but Not Dopamine Receptors and Dopamine Transporter (DAT) in PBMCs from Patients with Schizophrenia. Pharmaceuticals (Basel) 2024; 17:167. [PMID: 38399382 PMCID: PMC10892557 DOI: 10.3390/ph17020167] [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: 12/01/2023] [Revised: 12/20/2023] [Accepted: 12/22/2023] [Indexed: 02/25/2024] Open
Abstract
Dopamine and serotonin receptors and transporters play an essential role in the pathophysiology of schizophrenia; changes in their expression have been reported in neurons and leukocytes. Each antipsychotic induces a unique pattern in leukocyte function and phenotype. However, the use of polytherapy to treat schizophrenia makes it challenging to determine the specific effects of risperidone on peripheral blood mononuclear cells (PBMCs). The aim of this study was to evaluate the changes in the expression of D3, D5, DAT, 5-HT2A, and SERT in PBMCs from healthy volunteers (HV), drug-naive patients with schizophrenia (PWS), drug-free PWS, and PWS treated with risperidone for up to 40 weeks using quantitative PCR. Our study revealed elevated mRNA levels of D3, DAT, 5-HT2A, and SERT in unmedicated PWS. Treatment with risperidone led to a reduction only in the expression of 5-HT2A and SERT. Furthermore, we observed a moderate correlation between 5-HT2A expression and the positive and negative syndrome scale (PANSS), as well as SERT expression and PANSS scale. We also found a moderate correlation between 5-HT2A and SERT expression and the positive subscale. The duration of risperidone consumption had a significant negative correlation with the expression of 5-HT2A and SERT. Our study introduces the measurement of 5-HT2A and SERT expression in PBMCs as a useful parameter for assessing the response to risperidone in PWS.
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Affiliation(s)
- Samantha Alvarez-Herrera
- Laboratorio de Psicoinmunología, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñíz, Mexico City 14370, Mexico; (S.A.-H.); (G.P.-S.); (E.B.-V.)
| | - Mauricio Rosel Vales
- Clínica de Esquizofrenia, Dirección de Servicios Clínicos, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñíz, Mexico City 14370, Mexico;
| | - Gilberto Pérez-Sánchez
- Laboratorio de Psicoinmunología, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñíz, Mexico City 14370, Mexico; (S.A.-H.); (G.P.-S.); (E.B.-V.)
| | - Enrique Becerril-Villanueva
- Laboratorio de Psicoinmunología, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñíz, Mexico City 14370, Mexico; (S.A.-H.); (G.P.-S.); (E.B.-V.)
| | - Yvonne Flores-Medina
- Subdirección de Investigaciones Clínicas, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñíz, Mexico City 14370, Mexico; (Y.F.-M.); (R.S.-A.)
| | - José Luis Maldonado-García
- Departamemto de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico;
- Departamemto de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Ricardo Saracco-Alvarez
- Subdirección de Investigaciones Clínicas, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñíz, Mexico City 14370, Mexico; (Y.F.-M.); (R.S.-A.)
| | - Raúl Escamilla
- Subdirección de Consulta Externa, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñíz, Mexico City 14370, Mexico;
| | - Lenin Pavón
- Laboratorio de Psicoinmunología, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñíz, Mexico City 14370, Mexico; (S.A.-H.); (G.P.-S.); (E.B.-V.)
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Gopinath A, Mackie PM, Phan LT, Mirabel R, Smith AR, Miller E, Franks S, Syed O, Riaz T, Law BK, Urs N, Khoshbouei H. Who Knew? Dopamine Transporter Activity Is Critical in Innate and Adaptive Immune Responses. Cells 2023; 12:cells12020269. [PMID: 36672204 PMCID: PMC9857305 DOI: 10.3390/cells12020269] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/22/2022] [Accepted: 01/04/2023] [Indexed: 01/12/2023] Open
Abstract
The dopamine transporter (DAT) regulates the dimension and duration of dopamine transmission. DAT expression, its trafficking, protein-protein interactions, and its activity are conventionally studied in the CNS and within the context of neurological diseases such as Parkinson's Diseases and neuropsychiatric diseases such as drug addiction, attention deficit hyperactivity and autism. However, DAT is also expressed at the plasma membrane of peripheral immune cells such as monocytes, macrophages, T-cells, and B-cells. DAT activity via an autocrine/paracrine signaling loop regulates macrophage responses to immune stimulation. In a recent study, we identified an immunosuppressive function for DAT, where blockade of DAT activity enhanced LPS-mediated production of IL-6, TNF-α, and mitochondrial superoxide levels, demonstrating that DAT activity regulates macrophage immune responses. In the current study, we tested the hypothesis that in the DAT knockout mice, innate and adaptive immunity are perturbed. We found that genetic deletion of DAT (DAT-/-) results in an exaggerated baseline inflammatory phenotype in peripheral circulating myeloid cells. In peritoneal macrophages obtained from DAT-/- mice, we identified increased MHC-II expression and exaggerated phagocytic response to LPS-induced immune stimulation, suppressed T-cell populations at baseline and following systemic endotoxemia and exaggerated memory B cell expansion. In DAT-/- mice, norepinephrine and dopamine levels are increased in spleen and thymus, but not in circulating serum. These findings in conjunction with spleen hypoplasia, increased splenic myeloid cells, and elevated MHC-II expression, in DAT-/- mice further support a critical role for DAT activity in peripheral immunity. While the current study is only focused on identifying the role of DAT in peripheral immunity, our data point to a much broader implication of DAT activity than previously thought. This study is dedicated to the memory of Dr. Marc Caron who has left an indelible mark in the dopamine transporter field.
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Affiliation(s)
- Adithya Gopinath
- Department of Neuroscience, University of Florida, Gainesville, FL 32611, USA
- Correspondence: (A.G.); (H.K.)
| | - Phillip M. Mackie
- Department of Neuroscience, University of Florida, Gainesville, FL 32611, USA
| | - Leah T. Phan
- Department of Neuroscience, University of Florida, Gainesville, FL 32611, USA
| | - Rosa Mirabel
- Department of Pharmacology and Therapeutics, University of Florida, Gainesville, FL 32611, USA
| | - Aidan R. Smith
- Department of Neuroscience, University of Florida, Gainesville, FL 32611, USA
| | - Emily Miller
- Department of Neuroscience, University of Florida, Gainesville, FL 32611, USA
| | - Stephen Franks
- Department of Neuroscience, University of Florida, Gainesville, FL 32611, USA
| | - Ohee Syed
- Department of Neuroscience, University of Florida, Gainesville, FL 32611, USA
| | - Tabish Riaz
- Department of Neuroscience, University of Florida, Gainesville, FL 32611, USA
| | - Brian K. Law
- Department of Pharmacology and Therapeutics, University of Florida, Gainesville, FL 32611, USA
| | - Nikhil Urs
- Department of Pharmacology and Therapeutics, University of Florida, Gainesville, FL 32611, USA
| | - Habibeh Khoshbouei
- Department of Neuroscience, University of Florida, Gainesville, FL 32611, USA
- Correspondence: (A.G.); (H.K.)
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Channer B, Matt SM, Nickoloff-Bybel EA, Pappa V, Agarwal Y, Wickman J, Gaskill PJ. Dopamine, Immunity, and Disease. Pharmacol Rev 2023; 75:62-158. [PMID: 36757901 PMCID: PMC9832385 DOI: 10.1124/pharmrev.122.000618] [Citation(s) in RCA: 53] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 08/02/2022] [Accepted: 08/04/2022] [Indexed: 12/14/2022] Open
Abstract
The neurotransmitter dopamine is a key factor in central nervous system (CNS) function, regulating many processes including reward, movement, and cognition. Dopamine also regulates critical functions in peripheral organs, such as blood pressure, renal activity, and intestinal motility. Beyond these functions, a growing body of evidence indicates that dopamine is an important immunoregulatory factor. Most types of immune cells express dopamine receptors and other dopaminergic proteins, and many immune cells take up, produce, store, and/or release dopamine, suggesting that dopaminergic immunomodulation is important for immune function. Targeting these pathways could be a promising avenue for the treatment of inflammation and disease, but despite increasing research in this area, data on the specific effects of dopamine on many immune cells and disease processes remain inconsistent and poorly understood. Therefore, this review integrates the current knowledge of the role of dopamine in immune cell function and inflammatory signaling across systems. We also discuss the current understanding of dopaminergic regulation of immune signaling in the CNS and peripheral tissues, highlighting the role of dopaminergic immunomodulation in diseases such as Parkinson's disease, several neuropsychiatric conditions, neurologic human immunodeficiency virus, inflammatory bowel disease, rheumatoid arthritis, and others. Careful consideration is given to the influence of experimental design on results, and we note a number of areas in need of further research. Overall, this review integrates our knowledge of dopaminergic immunology at the cellular, tissue, and disease level and prompts the development of therapeutics and strategies targeted toward ameliorating disease through dopaminergic regulation of immunity. SIGNIFICANCE STATEMENT: Canonically, dopamine is recognized as a neurotransmitter involved in the regulation of movement, cognition, and reward. However, dopamine also acts as an immune modulator in the central nervous system and periphery. This review comprehensively assesses the current knowledge of dopaminergic immunomodulation and the role of dopamine in disease pathogenesis at the cellular and tissue level. This will provide broad access to this information across fields, identify areas in need of further investigation, and drive the development of dopaminergic therapeutic strategies.
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Affiliation(s)
- Breana Channer
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania (B.C., S.M.M., E.A.N-B., Y.A., J.W., P.J.G.); and The Children's Hospital of Philadelphia Research Institute, Philadelphia, Pennsylvania (V.P.)
| | - Stephanie M Matt
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania (B.C., S.M.M., E.A.N-B., Y.A., J.W., P.J.G.); and The Children's Hospital of Philadelphia Research Institute, Philadelphia, Pennsylvania (V.P.)
| | - Emily A Nickoloff-Bybel
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania (B.C., S.M.M., E.A.N-B., Y.A., J.W., P.J.G.); and The Children's Hospital of Philadelphia Research Institute, Philadelphia, Pennsylvania (V.P.)
| | - Vasiliki Pappa
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania (B.C., S.M.M., E.A.N-B., Y.A., J.W., P.J.G.); and The Children's Hospital of Philadelphia Research Institute, Philadelphia, Pennsylvania (V.P.)
| | - Yash Agarwal
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania (B.C., S.M.M., E.A.N-B., Y.A., J.W., P.J.G.); and The Children's Hospital of Philadelphia Research Institute, Philadelphia, Pennsylvania (V.P.)
| | - Jason Wickman
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania (B.C., S.M.M., E.A.N-B., Y.A., J.W., P.J.G.); and The Children's Hospital of Philadelphia Research Institute, Philadelphia, Pennsylvania (V.P.)
| | - Peter J Gaskill
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania (B.C., S.M.M., E.A.N-B., Y.A., J.W., P.J.G.); and The Children's Hospital of Philadelphia Research Institute, Philadelphia, Pennsylvania (V.P.)
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Bahadory S, Sadraei J, Zibaei M, Pirestani M, Dalimi A. In vitro anti-gastrointestinal cancer activity of Toxocara canis-derived peptide: Analyzing the expression level of factors related to cell proliferation and tumor growth. Front Pharmacol 2022; 13:878724. [PMID: 36204226 PMCID: PMC9530354 DOI: 10.3389/fphar.2022.878724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 08/01/2022] [Indexed: 11/23/2022] Open
Abstract
Background: Recently, a hypothesis about the negative relationship between cancers and parasites has been proposed and investigated; some parasitic worms and their products can affect the cancer cell proliferation. Due to the potential anti-cancer effect of helminthic parasites, in the present study, the excretory–secretory protein of Toxocara canis (T. canis) parasite was used to evaluate the possible anti-cancer properties and their effect on gastrointestinal and liver cancer cell proliferation-related genes in laboratory conditions. Methods and materials: The selected synthesized peptide fraction from the T. canis excretory–secretory Troponin protein peptide (ES TPP) was exposed at 32, 64, 128, and 256 μg/ml concentrations to three gastrointestinal cancer cell lines AGS, HT-29, and Caco 2, as well as HDF cells as normal cell lines. We used the MTT assay to evaluate cellular changes and cell viability (CV). Variations in gene (Bcl-2, APAF1, ZEB1, VEGF, cyclin-D1, and caspase-3) expression were analyzed by real-time RT-PCR. Results: After 24 h of exposure to pept1ides and cell lines, a decrease in CV was observed at a concentration of 64 μg/ml and compared to the control group. Then, after 48 h, a significant decrease in the CV of Caco 2 cells was observed at a concentration of 32 μg/ml; in the other cancer cell lines, concentrations above 32 μg/ml were effective. The peptide was able to significantly alter the expression of the studied genes at a concentration of 100 μg/ml. Conclusion: Although the studied peptide at high concentrations could have a statistically significant effect on cancer cells, it is still far from the standard drug and can be optimized and promising in future studies.
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Affiliation(s)
- Saeed Bahadory
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Javid Sadraei
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
- *Correspondence: Javid Sadraei,
| | - Mohammad Zibaei
- Department of Parasitology and Mycology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
- Evidence-Based Phytotherapy and Complementary Medicine Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Majid Pirestani
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Abdolhossein Dalimi
- Department of Parasitology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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Yan Q, Wu X, Zhou P, Zhou Y, Li X, Liu Z, Tan H, Yao W, Xia Y, Zhu F. HERV-W Envelope Triggers Abnormal Dopaminergic Neuron Process through DRD2/PP2A/AKT1/GSK3 for Schizophrenia Risk. Viruses 2022; 14:v14010145. [PMID: 35062349 PMCID: PMC8777930 DOI: 10.3390/v14010145] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/08/2022] [Accepted: 01/10/2022] [Indexed: 12/13/2022] Open
Abstract
An increasing number of studies have begun considering human endogenous retroviruses (HERVs) as potential pathogenic phenomena. Our previous research suggests that HERV-W Envelope (HERV-W ENV), a HERV-W family envelope protein, is elevated in schizophrenia patients and contributes to the pathophysiology of schizophrenia. The dopamine (DA) hypothesis is the cornerstone in research and clinical practice related to schizophrenia. Here, we found that the concentration of DA and the expression of DA receptor D2 (DRD2) were significantly higher in schizophrenia patients than in healthy individuals. Intriguingly, there was a positive correlation between HERV-W ENV and DA concentration. Depth analyses showed that there was a marked consistency between HERV-W ENV and DRD2 in schizophrenia. Studies in vitro indicated that HERV-W ENV could increase the DA concentration by regulating DA metabolism and induce the expression of DRD2. Co-IP assays and laser confocal scanning microscopy indicated cellular colocalization and a direct interaction between DRD2 and HERV-W ENV. Additionally, HERV-W ENV caused structural and functional abnormalities of DA neurons. Further studies showed that HERV-W ENV could trigger the PP2A/AKT1/GSK3 pathway via DRD2. A whole-cell patch-clamp analysis suggested that HERV-W ENV enhanced sodium influx through DRD2. In conclusion, we uncovered a relationship between HERV-W ENV and the dopaminergic system in the DA neurons. Considering that GNbAC1, a selective monoclonal antibody to the MSRV-specific epitope, has been promised as a therapy for treating type 1 diabetes and multiple sclerosis (MS) in clinical trials, understanding the precise function of HERV-W ENV in the dopaminergic system may provide new insights into the treatment of schizophrenia.
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Affiliation(s)
- Qiujin Yan
- State Key Laboratory of Virology, Department of Medical Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China; (Q.Y.); (X.W.); (P.Z.); (Y.Z.); (X.L.); (W.Y.); (Y.X.)
| | - Xiulin Wu
- State Key Laboratory of Virology, Department of Medical Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China; (Q.Y.); (X.W.); (P.Z.); (Y.Z.); (X.L.); (W.Y.); (Y.X.)
| | - Ping Zhou
- State Key Laboratory of Virology, Department of Medical Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China; (Q.Y.); (X.W.); (P.Z.); (Y.Z.); (X.L.); (W.Y.); (Y.X.)
| | - Yan Zhou
- State Key Laboratory of Virology, Department of Medical Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China; (Q.Y.); (X.W.); (P.Z.); (Y.Z.); (X.L.); (W.Y.); (Y.X.)
| | - Xuhang Li
- State Key Laboratory of Virology, Department of Medical Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China; (Q.Y.); (X.W.); (P.Z.); (Y.Z.); (X.L.); (W.Y.); (Y.X.)
| | - Zhongchun Liu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, China; (Z.L.); (H.T.)
| | - Huawei Tan
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, China; (Z.L.); (H.T.)
| | - Wei Yao
- State Key Laboratory of Virology, Department of Medical Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China; (Q.Y.); (X.W.); (P.Z.); (Y.Z.); (X.L.); (W.Y.); (Y.X.)
| | - Yaru Xia
- State Key Laboratory of Virology, Department of Medical Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China; (Q.Y.); (X.W.); (P.Z.); (Y.Z.); (X.L.); (W.Y.); (Y.X.)
| | - Fan Zhu
- State Key Laboratory of Virology, Department of Medical Microbiology, School of Basic Medical Sciences, Wuhan University, Wuhan 430071, China; (Q.Y.); (X.W.); (P.Z.); (Y.Z.); (X.L.); (W.Y.); (Y.X.)
- Hubei Province Key Laboratory of Allergy & Immunology, Wuhan University, Wuhan 430071, China
- Correspondence:
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The role of dopamine receptors in lymphocytes and their changes in schizophrenia. Brain Behav Immun Health 2021; 12:100199. [PMID: 34589732 PMCID: PMC8474470 DOI: 10.1016/j.bbih.2021.100199] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 12/21/2020] [Indexed: 11/22/2022] Open
Abstract
Dopamine and its 5 receptors, which are grouped into two families (D1-like and D2-like), modulate functions at a systemic level in both the central nervous system and periphery. The central nervous system and the immune system are the main adaptive systems, which participate in a continuous and functional crosstalk to guarantee homeostasis. On binding to its 5 dopamine receptors, dopamine acts as a co-regulator of the immune system, contributing to the interaction of the central nervous system and inflammatory events and as a source of communication between the different immune cells. Dopaminergic perturbations in the central nervous system are observed in several neurological and psychiatric disorders. Schizophrenia is one of the most common mental disorders with a poorly understood pathoaetiology that includes genetic and environmental components that promote alterations in the dopaminergic system. Interestingly, abnormalities in dopamine receptors expression in lymphocytes of schizophrenia patients have been reported, often significantly correlating with the severity of the psychotic illness. Here, we review the current literature regarding the dopaminergic system in human lymphocytes and its alterations in schizophrenia. The existence of DA in the bloodstream suggests the presence of dopaminergic components that modulate functions at a systemic level; therefore, its effects are not limited to the CNS and the signalling in the neuronal dopaminergic system should be independent from that of the peripheral systems. The effects by DA-mediated activation of different DRs on immune cells show different sensitivities to DA, but binding profiles of DA on T cells are similar to those in neuronal membranes, suggesting receptors act similarly to those found in neurons. All DRs are expressed on the LYM membrane. However, more detailed information is required on the expression patterns of DR in immune cells in healthy conditions and in pathologies. DA has been observed to influence LYM functions acting in a variety of important processes, like cytokine secretion, cell adhesion, chemotaxis, and cytotoxicity. In human LYM, DA on D1-like receptors decreases oxidative metabolism and apoptosis, activates the selective secretion of IL-10 and TNFα, and facilitates NK cells. In contrast, most of the immunostimulatory DA effects on LYM depend on stimulation of D2-like receptors including activation, proliferation, differentiation, and suppression of NK cells. To date, an altered expression or signalling of neurotransmitter receptors is observed in immune cells during psychiatric disorders and, consequently, these cells also markedly respond to antipsychotics. Numerous technologies have been used in search of biomarkers for SCZ. However, after a century of studying SCZ their application in psychiatry remains rare and there are currently no validated biomarkers for the diagnosis and prognosis of patients with SCZ or the prediction of treatment efficacy.
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Howell KR, Law AJ. Neurodevelopmental concepts of schizophrenia in the genome-wide association era: AKT/mTOR signaling as a pathological mediator of genetic and environmental programming during development. Schizophr Res 2020; 217:95-104. [PMID: 31522868 PMCID: PMC7065975 DOI: 10.1016/j.schres.2019.08.036] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 08/28/2019] [Accepted: 08/31/2019] [Indexed: 12/14/2022]
Abstract
Normative brain development is contingent on the complex interplay between genes and environment. Schizophrenia (SCZ) is considered a highly polygenic, neurodevelopmental disorder associated with impaired neural circuit development, neurocognitive function and variations in neurotransmitter signaling systems, including dopamine. Significant evidence, accumulated over the last 30 years indicates a role for the in utero environment in SCZ pathophysiology. Emerging data suggests that changes in placental programming and function may mediate the link between genetic risk, early life complications (ELC) and adverse neurodevelopmental outcomes, with risk highlighted in key developmental drivers that converge on AKT/mTOR signaling. In this article we overview select risk genes identified through recent genome-wide association studies of SCZ including AKT3, miR-137, DRD2, and AKT1 itself. We propose that through convergence on AKT/mTOR signaling, these genes are critical factors directing both placentation and neurodevelopment, influencing risk for SCZ through dysregulation of placental function, metabolism and early brain development. We discuss association of risk genes in the context of their known roles in neurodevelopment, placental expression and their possible mechanistic links to SCZ in the broad context of the 'developmental origins of adult disease' construct. Understanding how common genetic variation impacts early fetal programming may advance our knowledge of disease etiology and identify early critical developmental windows for prevention and intervention.
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Affiliation(s)
| | - Amanda J. Law
- Corresponding Author: Amanda J. Law, PhD, Professor of Psychiatry, Medicine and Cell and Developmental Biology, Nancy L. Gary Endowed Chair in Children’s Mental Disorders Research, University of Colorado, School of Medicine, , Phone: 303-724-4418, Fax: 303-724-4425, 12700 E. 19th Ave., MS 8619, Aurora, CO 80045
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Hillemacher T, Rhein M, Burkert A, Heberlein A, Wilhelm J, Glahn A, Muschler MAN, Kahl KG, Kornhuber J, Bleich S, Frieling H. DNA-methylation of the dopamin receptor 2 gene is altered during alcohol withdrawal. Eur Neuropsychopharmacol 2019; 29:1250-1257. [PMID: 31530416 DOI: 10.1016/j.euroneuro.2019.09.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 08/23/2019] [Accepted: 09/03/2019] [Indexed: 01/03/2023]
Abstract
The dopaminergic neurotransmission is known to be of crucial importance in addictive behavior. Epigenetic regulation like methylation of DNA influences the function of dopaminergic transmission. The present study investigated alterations of DNA methylation in the dopamine D2 receptor (DRD2)-gene in patients suffering from alcohol dependence. The study sample consists of 99 alcohol dependent males admitted for alcohol withdrawal treatment and a control group of 33 healthy participants. Blood samples underwent bisulfite sequencing to determine levels of DNA-methylation of the promoter region of the DRD2 gene. Mixed linear modeling was used to test differences between patients and controls, course of methylation during detoxification. While DRD2-gene methylation did not differ significantly between patients and controls, we found a significant increase of DRD2-gene methylation during alcohol withdrawal/early abstinence. Craving, measured with the Obsessive Compulsive Drinking Scale (OCDS), was significantly associated with DRD2-gene methylation. Furthermore, smoking significantly influenced DRD2-gene methylation in both, patients and controls. As in other types of addictive disorders, DRD2-gene methylation is altered during alcohol withdrawal/early abstinence. The findings regarding an association with alcohol craving and tobacco consumption point towards a crucial role of DRD2-gene methylation in the neurobiology of addictive behavior.
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Affiliation(s)
- Thomas Hillemacher
- Center for Addiction Research (CARe), Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School (MHH), Carl-Neuberg-Str. 1, 30625 Hannover, Germany; Department of Psychiatry and Psychotherapy, Paracelsus Medical University Nuremberg, Germany
| | - Mathias Rhein
- Center for Addiction Research (CARe), Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School (MHH), Carl-Neuberg-Str. 1, 30625 Hannover, Germany; Molecular Neurosciences Laboratory, Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Germany
| | - Alexandra Burkert
- Molecular Neurosciences Laboratory, Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Germany
| | - Annemarie Heberlein
- Center for Addiction Research (CARe), Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School (MHH), Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Julia Wilhelm
- Center for Addiction Research (CARe), Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School (MHH), Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Alexander Glahn
- Center for Addiction Research (CARe), Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School (MHH), Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Marc Andre Nicolas Muschler
- Center for Addiction Research (CARe), Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School (MHH), Carl-Neuberg-Str. 1, 30625 Hannover, Germany; Molecular Neurosciences Laboratory, Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Germany
| | - Kai G Kahl
- Center for Addiction Research (CARe), Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School (MHH), Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Johannes Kornhuber
- Department of Psychiatry and Psychotherapy, University Hospital Erlangen, Germany
| | - Stefan Bleich
- Center for Addiction Research (CARe), Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School (MHH), Carl-Neuberg-Str. 1, 30625 Hannover, Germany; Molecular Neurosciences Laboratory, Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Germany
| | - Helge Frieling
- Center for Addiction Research (CARe), Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School (MHH), Carl-Neuberg-Str. 1, 30625 Hannover, Germany; Molecular Neurosciences Laboratory, Department of Psychiatry, Socialpsychiatry and Psychotherapy, Hannover Medical School, Germany.
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10
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Gopinath A, Doty A, Mackie PM, Hashimi B, Francis M, Saadatpour L, Saha K, Shaw G, Ramirez-Zamora A, Okun MS, Streit WJ, Khoshbouei H. A novel approach to study markers of dopamine signaling in peripheral immune cells. J Immunol Methods 2019; 476:112686. [PMID: 31634479 DOI: 10.1016/j.jim.2019.112686] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 10/11/2019] [Accepted: 10/15/2019] [Indexed: 01/01/2023]
Abstract
Human monocytes express known markers of dopamine synthesis, storage and clearance, including dopamine transporter (DAT), tyrosine hydroxylase (TH), all subtypes of dopamine receptors and vesicular monoamine transporter 2 (VMAT2). Immunohistochemical and immunofluorescent methodologies have traditionally been employed to determine DAT and TH expression in the CNS, their detection in the blood and specifically in the peripheral monocytes has not been studied by flow cytometry. Flow cytometry assays are widely used in medicine and in basic, preclinical or clinical research to quantify physical and chemical characteristics of target cell populations. Here, we have established a highly sensitive and reproducible flow cytometry panel to detect and quantify DAT and TH expression in freshly isolated or cryopreserved human peripheral monocytes. In healthy humans (n = 41 biological replicates), we show baseline DAT and TH expressing monocytes constitute ~12% of the peripheral blood mononuclear cell (PBMC) fraction when examined in fresh isolation from whole blood. Using an identical flow cytometry panel, we found that cryopreservation of PBMCs using multiple techniques resulted in altered PBMC populations as compared to fresh isolation and relative to one another. Among these, we identified an optimum cryopreservation method for detecting TH and DAT in cryopreserved PBMCs. Our data provide a sensitive and reproducible approach to examine dopamine signaling in peripheral human immune cells. This approach can be applied to study peripheral dopamine signaling under healthy and potentially under disease conditions. The use of dopamine signaling could also be explored as a technique to monitor therapeutic interventions particularly those targeting DAT and TH in the periphery.
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Affiliation(s)
- Adithya Gopinath
- Department of Neuroscience, University of Florida College of Medicine, United States of America
| | - Andria Doty
- ICBR Flow Cytometry, University of Florida, United States of America
| | - Phillip M Mackie
- Department of Neuroscience, University of Florida College of Medicine, United States of America
| | - Basil Hashimi
- Department of Neuroscience, University of Florida College of Medicine, United States of America
| | - Madison Francis
- Department of Neuroscience, University of Florida College of Medicine, United States of America
| | - Leila Saadatpour
- Department of Neuroscience, University of Florida College of Medicine, United States of America
| | - Kaustuv Saha
- Department of Neuroscience, University of Florida College of Medicine, United States of America
| | - Gerry Shaw
- Department of Neuroscience, University of Florida College of Medicine, United States of America
| | - Adolfo Ramirez-Zamora
- Department of Neurology, Fixel Institute for Neurological Diseases, Center for Movement Disorders and Neurorestoration, University of Florida College of Medicine, United States of America
| | - Michael S Okun
- Department of Neurology, Fixel Institute for Neurological Diseases, Center for Movement Disorders and Neurorestoration, University of Florida College of Medicine, United States of America
| | - Wolfgang J Streit
- Department of Neuroscience, University of Florida College of Medicine, United States of America
| | - Habibeh Khoshbouei
- Department of Neuroscience, University of Florida College of Medicine, United States of America.
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11
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Lozupone M, La Montagna M, D'Urso F, Daniele A, Greco A, Seripa D, Logroscino G, Bellomo A, Panza F. The Role of Biomarkers in Psychiatry. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1118:135-162. [PMID: 30747421 DOI: 10.1007/978-3-030-05542-4_7] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Psychiatric illnesses are cognitive and behavioral disorders of the brain. At present, psychiatric diagnosis is based on DSM-5 criteria. Even if endophenotype specificity for psychiatric disorders is discussed, it is difficult to study and identify psychiatric biomarkers to support diagnosis, prognosis, or clinical response to treatment. This chapter investigates the innovative biomarkers of psychiatric diseases for diagnosis and personalized treatment, in particular post-genomic data and proteomic analyses.
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Affiliation(s)
- Madia Lozupone
- Neurodegenerative Disease Unit, Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari Aldo Moro, Bari, Italy
| | - Maddalena La Montagna
- Psychiatric Unit, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Francesca D'Urso
- Psychiatric Unit, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Antonio Daniele
- Institute of Neurology, Catholic University of Sacred Heart, Rome, Italy.,Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Antonio Greco
- Geriatric Unit, Fondazione IRCCS Casa Sollievo della Sofferenza, Foggia, Italy
| | - Davide Seripa
- Geriatric Unit, Fondazione IRCCS Casa Sollievo della Sofferenza, Foggia, Italy
| | - Giancarlo Logroscino
- Neurodegenerative Disease Unit, Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari Aldo Moro, Bari, Italy.,Department of Clinical Research in Neurology, University of Bari Aldo Moro, Lecce, Italy
| | - Antonello Bellomo
- Psychiatric Unit, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
| | - Francesco Panza
- Neurodegenerative Disease Unit, Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari Aldo Moro, Bari, Italy. .,Geriatric Unit, Fondazione IRCCS Casa Sollievo della Sofferenza, Foggia, Italy. .,Department of Clinical Research in Neurology, University of Bari Aldo Moro, Lecce, Italy.
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12
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Mohammadi A, Rashidi E, Amooeian VG. Brain, blood, cerebrospinal fluid, and serum biomarkers in schizophrenia. Psychiatry Res 2018; 265:25-38. [PMID: 29680514 DOI: 10.1016/j.psychres.2018.04.036] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 03/20/2018] [Accepted: 04/11/2018] [Indexed: 12/29/2022]
Abstract
Over the last decade, finding a reliable biomarker for the early detection of schizophrenia (Scz) has been a topic of interest. The main goal of the current review is to provide a comprehensive view of the brain, blood, cerebrospinal fluid (CSF), and serum biomarkers of Scz disease. Imaging studies have demonstrated that the volumes of the corpus callosum, thalamus, hippocampal formation, subiculum, parahippocampal gyrus, superior temporal gyrus, prefrontal and orbitofrontal cortices, and amygdala-hippocampal complex were reduced in patients diagnosed with Scz. It has been revealed that the levels of interleukin 1β (IL-1β), IL-6, IL-8, and TNF-α were increased in patients with Scz. Decreased mRNA levels of brain-derived neurotrophic factor (BDNF), tropomyosin receptor kinase B (TrkB), neurotrophin-3 (NT-3), nerve growth factor (NGF), and vascular endothelial growth factor (VEGF) genes have also been reported in Scz patients. Genes with known strong relationships with this disease include BDNF, catechol-O-methyltransferase (COMT), regulator of G-protein signaling 4 (RGS4), dystrobrevin-binding protein 1 (DTNBP1), neuregulin 1 (NRG1), Reelin (RELN), Selenium-binding protein 1 (SELENBP1), glutamic acid decarboxylase 67 (GAD 67), and disrupted in schizophrenia 1 (DISC1). The levels of dopamine, tyrosine hydroxylase (TH), serotonin or 5-hydroxytryptamine (5-HT) receptor 1A and B (5-HTR1A and 5-HTR1B), and 5-HT1B were significantly increased in Scz patients, while the levels of gamma-aminobutyric acid (GABA), 5-HT transporter (5-HTT), and 5-HT receptor 2A (5-HTR2A) were decreased. The increased levels of SELENBP1 and Glycogen synthase kinase 3 subunit α (GSK3α) genes in contrast with reduced levels of B-cell translocation gene 1 (BTG1), human leukocyte antigen DRB1 (HLA-DRB1), heterogeneous nuclear ribonucleoprotein A3 (HNRPA3), and serine/arginine-rich splicing factor 1 (SFRS1) genes have also been reported. This review covers various dysregulation of neurotransmitters and also highlights the strengths and weaknesses of studies attempting to identify candidate biomarkers.
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Affiliation(s)
- Alireza Mohammadi
- Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | - Ehsan Rashidi
- Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Vahid Ghasem Amooeian
- Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
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13
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Taraskina AE, Nasyrova RF, Zabotina AM, Sosin DN, Sosina КА, Ershov EE, Grunina MN, Krupitsky EM. Potential diagnostic markers of olanzapine efficiency for acute psychosis: a focus on peripheral biogenic amines. BMC Psychiatry 2017; 17:394. [PMID: 29221470 PMCID: PMC5723030 DOI: 10.1186/s12888-017-1562-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 11/30/2017] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Biomarkers are now widely used in many fields of medicine, and the identification of biomarkers that predict antipsychotic efficacy and adverse reactions is a growing area of psychiatric research. Monoamine molecules of the peripheral bloodstream are possible prospective biomarkers based on a growing body of evidence indicating that they may reflect specific changes in neurotransmitters in the brain. The aim of this study was to detect peripheral biogenic amine indicators of patients with acute psychosis and to test the correlations between the biological measures studied and the psychopathological status of the patients. METHODS This research included 60 patients with acute psychosis treated with olanzapine (n = 30) or haloperidol (n = 30). Here, we measured biogenic amine indicators, including mRNA levels of dopamine receptor D4 (DRD4) and the serotonin 2A receptor (5HTR2A), in peripheral blood mononuclear cells (PBMCs) using quantitative real-time polymerase chain reaction and serum dopamine concentrations by enzyme linked immunosorbent assay (ELISA). Psychopathological status was evaluated using psychometric scales. The assessments were conducted prior to and after 14 and 28 days of treatment. RESULTS The administration of haloperidol, but not olanzapine, up-regulated 5HTR2A mRNA in a linear manner, albeit without statistical significance (p = 0.052). Both drugs had non-significant effects on DRD4 mRNA levels. Nevertheless, a positive correlation was found between DRD4 and 5HTR2A mRNA levels over a longitudinal trajectory, suggesting co-expression of the two genes. A significant positive correlation was observed between 5HTR2A mRNA levels and total Positive and Negative Syndrome Scale (PANSS) scores in both groups of patients before treatment. A significant correlation between baseline 5HTR2A mRNA levels and PANSS scores on days 14 and 28 of treatment remained for patients treated with olanzapine only. Moreover, a significant positive correlation was observed between blood serum dopamine levels and scores on extrapyramidal symptom scales in the olanzapine group. CONCLUSIONS The DRD4 and 5HTR2A genes are co-expressed in PBMCs during antipsychotic administration. Despite a correlation between the studied biogenic amine indicators and the psychopathological status of patients, reliable biomarkers of treatment response could not be determined.
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Affiliation(s)
- A. E. Taraskina
- Department of Addictions, Department of personalized psychiatry and neurology, V.M. Bekhterev National Medical Research Center Psychiatry and Neurology, ul. Bekhterev, d. 3, Saint-Petersburg, 192019 Russia
- Laboratory of Molecular Biology, First Saint Petersburg Pavlov State Medical University, L’va Tolstogo str. 6/8, Saint-Petersburg, 197022 Russia
- Laboratory of Molecular Human Genetics, National Research Centre “Kurchatov Institute”, Petersburg Nuclear Physics Institute named after B.P. Konstantinov, Leningrad district, Orlova Roscha, Leningrad district, Gatchina, 188300 Russia
| | - R. F. Nasyrova
- Department of Addictions, Department of personalized psychiatry and neurology, V.M. Bekhterev National Medical Research Center Psychiatry and Neurology, ul. Bekhterev, d. 3, Saint-Petersburg, 192019 Russia
| | - A. M. Zabotina
- Laboratory of Molecular Biology, First Saint Petersburg Pavlov State Medical University, L’va Tolstogo str. 6/8, Saint-Petersburg, 197022 Russia
- Laboratory of Molecular Human Genetics, National Research Centre “Kurchatov Institute”, Petersburg Nuclear Physics Institute named after B.P. Konstantinov, Leningrad district, Orlova Roscha, Leningrad district, Gatchina, 188300 Russia
| | - D. N. Sosin
- Department of Addictions, Department of personalized psychiatry and neurology, V.M. Bekhterev National Medical Research Center Psychiatry and Neurology, ul. Bekhterev, d. 3, Saint-Petersburg, 192019 Russia
| | - К. А. Sosina
- Department of Addictions, Department of personalized psychiatry and neurology, V.M. Bekhterev National Medical Research Center Psychiatry and Neurology, ul. Bekhterev, d. 3, Saint-Petersburg, 192019 Russia
| | - E. E. Ershov
- Saint Petersburg Psychiatric Hospital no. 1 named after P.P. Kashchenko, Leningrad region, district, s. Nikolskoye, ul. Menkovskaya, d. 10, Gatchina, Russia
| | - M. N. Grunina
- Laboratory of Molecular Human Genetics, National Research Centre “Kurchatov Institute”, Petersburg Nuclear Physics Institute named after B.P. Konstantinov, Leningrad district, Orlova Roscha, Leningrad district, Gatchina, 188300 Russia
| | - E. M. Krupitsky
- Department of Addictions, Department of personalized psychiatry and neurology, V.M. Bekhterev National Medical Research Center Psychiatry and Neurology, ul. Bekhterev, d. 3, Saint-Petersburg, 192019 Russia
- Laboratory of Molecular Biology, First Saint Petersburg Pavlov State Medical University, L’va Tolstogo str. 6/8, Saint-Petersburg, 197022 Russia
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14
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Chen J, Schwarz E. The role of blood-based biomarkers in advancing personalized therapy of schizophrenia. EXPERT REVIEW OF PRECISION MEDICINE AND DRUG DEVELOPMENT 2017. [DOI: 10.1080/23808993.2017.1400906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Junfang Chen
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Emanuel Schwarz
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
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15
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Liu L, Luo Y, Zhang G, Jin C, Zhou Z, Cheng Z, Yuan G. Correlation of DRD2 mRNA expression levels with deficit syndrome severity in chronic schizophrenia patients receiving clozapine treatment. Oncotarget 2017; 8:86515-86526. [PMID: 29156812 PMCID: PMC5689702 DOI: 10.18632/oncotarget.21230] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 08/26/2017] [Indexed: 01/06/2023] Open
Abstract
Schizophrenia is a complex, severe, chronic psychiatric disorder, and the associated deficit syndrome is widely regarded as an important clinical aspect of schizophrenia. This study analyzed the relationship of deficit syndrome severity with the mRNA levels of members of signaling pathways that associate with the pathophysiology of schizophrenia, including the dopamine D2 receptor (DRD2), protein kinase B (AKT1), and phosphoinositide-3 kinase (PI3KCB), in peripheral blood leukocytes (PBLs) of 20 healthy controls and 19 chronic schizophrenia patients with long-term clozapine treatment. The DRD2 expression levels in chronic schizophrenia group were statistically higher than those in controls (t=2.168, p=0.037). Moreover, in chronic schizophrenia group, correlations were observed between the expression levels of DRD2 and PI3KCB (r=0.771, p<0.001), DRD2 and AKT1 (r=0.592, p=0.008), and PI3KCB and AKT1 (r=0.562, p=0.012) and between the DRD2 mRNA levels and the Proxy for the Deficit Syndrome score (r=0.511, p=0.025). In control group, the correlation between PI3KCB expression levels and DRD2 expression levels was only observed (r=0.782, p<0.001). In conclusion, a correlation was observed between increased deficit syndrome severity and elevated expression levels of DRD2 in PBLs of chronic schizophrenia patients receiving long-term clozapine treatment.
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Affiliation(s)
- Liang Liu
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China
| | - Yin Luo
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China
| | - Guofu Zhang
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China
| | - Chunhui Jin
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China
| | - Zhenhe Zhou
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China
| | - Zaohuo Cheng
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China
- Wuxi Tongren International Rehabilitation Hospital, Nanjing Medical University, Wuxi, China
| | - Guozhen Yuan
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China
- Wuxi Tongren International Rehabilitation Hospital, Nanjing Medical University, Wuxi, China
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16
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Xavier RM, Vorderstrasse A. Genetic Basis of Positive and Negative Symptom Domains in Schizophrenia. Biol Res Nurs 2017; 19:559-575. [PMID: 28691507 DOI: 10.1177/1099800417715907] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Schizophrenia is a highly heritable disorder, the genetic etiology of which has been well established. Yet despite significant advances in genetics research, the pathophysiological mechanisms of this disorder largely remain unknown. This gap has been attributed to the complexity of the polygenic disorder, which has a heterogeneous clinical profile. Examining the genetic basis of schizophrenia subphenotypes, such as those based on particular symptoms, is thus a useful strategy for decoding the underlying mechanisms. This review of literature examines the recent advances (from 2011) in genetic exploration of positive and negative symptoms in schizophrenia. We searched electronic databases PubMed, Web of Science, and Cumulative Index to Nursing and Allied Health Literature using key words schizophrenia, symptoms, positive symptoms, negative symptoms, cognition, genetics, genes, genetic predisposition, and genotype in various combinations. We identified 115 articles, which are included in the review. Evidence from these studies, most of which are genetic association studies, identifies shared and unique gene associations for the symptom domains. Genes associated with neurotransmitter systems and neuronal development/maintenance primarily constitute the shared associations. Needed are studies that examine the genetic basis of specific symptoms within the broader domains in addition to functional mechanisms. Such investigations are critical to developing precision treatment and care for individuals afflicted with schizophrenia.
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Affiliation(s)
| | - Allison Vorderstrasse
- 2 Duke Center for Applied Genomics and Precision Medicine, Duke University School of Nursing, Durham, NC, USA
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17
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Perkovic MN, Erjavec GN, Strac DS, Uzun S, Kozumplik O, Pivac N. Theranostic Biomarkers for Schizophrenia. Int J Mol Sci 2017; 18:E733. [PMID: 28358316 PMCID: PMC5412319 DOI: 10.3390/ijms18040733] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 03/23/2017] [Accepted: 03/27/2017] [Indexed: 12/14/2022] Open
Abstract
Schizophrenia is a highly heritable, chronic, severe, disabling neurodevelopmental brain disorder with a heterogeneous genetic and neurobiological background, which is still poorly understood. To allow better diagnostic procedures and therapeutic strategies in schizophrenia patients, use of easy accessible biomarkers is suggested. The most frequently used biomarkers in schizophrenia are those associated with the neuroimmune and neuroendocrine system, metabolism, different neurotransmitter systems and neurotrophic factors. However, there are still no validated and reliable biomarkers in clinical use for schizophrenia. This review will address potential biomarkers in schizophrenia. It will discuss biomarkers in schizophrenia and propose the use of specific blood-based panels that will include a set of markers associated with immune processes, metabolic disorders, and neuroendocrine/neurotrophin/neurotransmitter alterations. The combination of different markers, or complex multi-marker panels, might help in the discrimination of patients with different underlying pathologies and in the better classification of the more homogenous groups. Therefore, the development of the diagnostic, prognostic and theranostic biomarkers is an urgent and an unmet need in psychiatry, with the aim of improving diagnosis, therapy monitoring, prediction of treatment outcome and focus on the personal medicine approach in order to improve the quality of life in patients with schizophrenia and decrease health costs worldwide.
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Affiliation(s)
| | | | - Dubravka Svob Strac
- Rudjer Boskovic Institute, Division of Molecular Medicine, 10000 Zagreb, Croatia.
| | - Suzana Uzun
- Clinic for Psychiatry Vrapce, 10090 Zagreb, Croatia.
| | | | - Nela Pivac
- Rudjer Boskovic Institute, Division of Molecular Medicine, 10000 Zagreb, Croatia.
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18
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Genis-Mendoza AD, Tovilla-Zárate CA, López-Narvaez L, Mendoza-Lorenzo P, Ostrosky-Wegman P, Nicolini H, González-Castro TB, Hernández-Diaz Y. Effect on the expression of drd2 and drd3 after neonatal lesion in the lymphocytes, nucleus accumbens, hippocampus and prefrontal cortex: comparative analysis between juvenile and adult Wistar rats. Hereditas 2016; 153:13. [PMID: 28096775 PMCID: PMC5226098 DOI: 10.1186/s41065-016-0018-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 10/27/2016] [Indexed: 01/10/2023] Open
Abstract
Background Neonatal lesion in the ventral hippocampus (NLVH) is a validated animal model to study schizophrenia from a neurodevelopmental perspective. This animal model is also used to investigate how neonatal lesions may alter the genetic expression of dopaminergic receptors. The present study compares mRNA expression levels of dopamine receptors (drd2 and drd3) in lymphocytes and brain of NLVH animals at two different age stages: young and adult. Methods The NLVH procedure was performed on 20 male Wistar rats at postnatal days 5–7. The mRNA expression levels of drd2 and drd3 genes in lymphocytes, nucleus accumbens, hippocampus and prefrontal cortex were measured and analyzed at postnatal days 45 and 90. The results were compared and contrasted with respective sham groups. Results In lymphocytes, only in NLVH-adult group we observed drd2 mRNA expression, while drd2 mRNA expression was not observed in the NLVH-juvenile rats; on the other hand, the drd3 mRNA expression did not show significant statistical differences. In hippocampus no differences were observed between drd2 mRNA or drd3 mRNA expression when comparing juvenile/adult shams with NLVH groups. In the prefrontal area, a decrease in drd2 mRNA expression levels were observed in the NLVH-adult group (F(1,3) = 52.83, p = 0,005) in comparison to the sham-adult group. Finally, in the nucleus accumbens, a strong decrease of drd3 mRNA expression was observed in the NLVH-adult group in comparison to the sham-adult group (F(1,3) = 123,2, p < 0.001). Conclusions Our results show that differences in drd2 and drd3 mRNA levels in NLVH-adults are patent when compared to the sham-adult group or with the NLVH-juvenile group. These findings suggest that the expression levels may be regulated during adulthood, leading to behavioral and neurochemical changes related to schizophrenia. Therefore, more studies are necessary to determine the role of dopamine receptors as possible molecular markers for neurodevelopmental changes associated with schizophrenia.
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Affiliation(s)
- Alma Delia Genis-Mendoza
- Instituto Nacional de Medicina Genómica (INMEGEN), Servicios de Atención Psiquiátrica (SAP), Secretaria de Salud, D.F. Mexico, Mexico
| | - Carlos Alfonso Tovilla-Zárate
- División Académica Multidisciplinaria de Comalcalco, Universidad Juárez Autónoma de Tabasco, Comalcalco, Tabasco Mexico
| | | | | | | | - Humberto Nicolini
- Instituto Nacional de Medicina Genómica (INMEGEN), Servicios de Atención Psiquiátrica (SAP), Secretaria de Salud, D.F. Mexico, Mexico ; Carracci Medical Group, Carracci 107. Insurgentes Extremadura, Ciudad de México, D.F. 13740 Mexico
| | - Thelma Beatriz González-Castro
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco Mexico
| | - Yazmin Hernández-Diaz
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco Mexico
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19
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Immunomodulatory Effects Mediated by Dopamine. J Immunol Res 2016; 2016:3160486. [PMID: 27795960 PMCID: PMC5067323 DOI: 10.1155/2016/3160486] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 07/29/2016] [Accepted: 08/08/2016] [Indexed: 01/11/2023] Open
Abstract
Dopamine (DA), a neurotransmitter in the central nervous system (CNS), has modulatory functions at the systemic level. The peripheral and central nervous systems have independent dopaminergic system (DAS) that share mechanisms and molecular machinery. In the past century, experimental evidence has accumulated on the proteins knowledge that is involved in the synthesis, reuptake, and transportation of DA in leukocytes and the differential expression of the D1-like (D1R and D5R) and D2-like receptors (D2R, D3R, and D4R). The expression of these components depends on the state of cellular activation and the concentration and time of exposure to DA. Receptors that are expressed in leukocytes are linked to signaling pathways that are mediated by changes in cAMP concentration, which in turn triggers changes in phenotype and cellular function. According to the leukocyte lineage, the effects of DA are associated with such processes as respiratory burst, cytokine and antibody secretion, chemotaxis, apoptosis, and cytotoxicity. In clinical conditions such as schizophrenia, Parkinson disease, Tourette syndrome, and multiple sclerosis (MS), there are evident alterations during immune responses in leukocytes, in which changes in DA receptor density have been observed. Several groups have proposed that these findings are useful in establishing clinical status and clinical markers.
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20
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Liu L, Luo Y, Zhang G, Jin C, Zhou Z, Cheng Z, Yuan G. The mRNA expression of DRD2, PI3KCB, and AKT1 in the blood of acute schizophrenia patients. Psychiatry Res 2016; 243:397-402. [PMID: 27449010 DOI: 10.1016/j.psychres.2016.07.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 06/03/2016] [Accepted: 07/04/2016] [Indexed: 10/21/2022]
Abstract
The phosphoinositide 3 kinase - protein kinase B (PI3K-Akt) signaling pathway plays an important role in the dopamine D2 receptor (DRD2) pathway and in the pathophysiology of schizophrenia. This study measured the mRNA levels of DRD2, PI3KCB, and AKT1 in peripheral blood samples from 24 acute schizophrenia patients and 20 healthy controls using real-time quantitative reverse transcription polymerase chain reaction (real-time qRT-PCR). We found that in the acute schizophrenia patients, the mRNA expression levels of DRD2 and PI3KCB were significantly lower than those in the healthy controls, while the AKT1 mRNA levels were significantly higher than those in the healthy controls. A significant relationship between the mRNA levels of DRD2 and PI3KCB was found only in the controls. In conclusion, the gene expression state of the DRD2-PI3K-AKT signaling cascade differed significantly between acute schizophrenia patients and healthy controls.
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Affiliation(s)
- Liang Liu
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China.
| | - Yin Luo
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China
| | - Guofu Zhang
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China
| | - Chunhui Jin
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China
| | - Zhenhe Zhou
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China
| | - Zaohuo Cheng
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China; Wuxi Tongren International Rehabilitation Hospital, Nanjing Medical University, Wuxi, China
| | - Guozhen Yuan
- Wuxi Mental Health Center, Nanjing Medical University, Wuxi, China; Wuxi Tongren International Rehabilitation Hospital, Nanjing Medical University, Wuxi, China
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21
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Yoshino Y, Kawabe K, Mori T, Mori Y, Yamazaki K, Numata S, Nakata S, Yoshida T, Iga JI, Ohmori T, Ueno SI. Low methylation rates of dopamine receptor D2 gene promoter sites in Japanese schizophrenia subjects. World J Biol Psychiatry 2016; 17:449-56. [PMID: 27269479 DOI: 10.1080/15622975.2016.1197424] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
OBJECTIVES According to the dopamine hypothesis, several studies on the gene for the dopamine receptor D2 (DRD2) have been conducted. However, no trait biomarkers on DRD2 are available. We examined whether the methylation rates in the upstream region of DRD2 in leukocytes are different in schizophrenia (SCZ) subjects compared to control subjects. METHODS We selected seven CpG sites in the upstream region of DRD2 that may theoretically bind major transcription factors. The methylation rates in these regions of 50 medicated and 18 drug-naïve SCZ subjects were compared with those of age-matched control subjects. RESULTS The methylation rates were significantly lower in medicated (CpG2, P < 0.0001; CpG4, P = 0.013; CpG7, P < 0.0001; and average: 12.9 ± 1.8 vs. 14.1 ± 2.2, P = 0.005) and drug-naïve SCZ subjects (CpG1, P = 0.006; CpG2, P = 0.001; CpG3, P = 0.001; CpG5, P = 0.02; CpG6, P = 0.015; CpG7, P = 0.027; and average: 9.86 ± 0.9 vs. 11.2 ± 1.3, P = 0.002). CONCLUSIONS We confirmed low methylation rates in the upstream region of DRD2 in both medicated and drug-naïve SCZ subjects. Low methylation rates of DRD2 in leukocytes may be a trait biomarker for SCZ.
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Affiliation(s)
- Yuta Yoshino
- a Department of Neuropsychiatry, Molecules and Function , Ehime University Graduate School of Medicine , Toon , Ehime , Japan
| | - Kentaro Kawabe
- a Department of Neuropsychiatry, Molecules and Function , Ehime University Graduate School of Medicine , Toon , Ehime , Japan
| | - Takaaki Mori
- a Department of Neuropsychiatry, Molecules and Function , Ehime University Graduate School of Medicine , Toon , Ehime , Japan
| | - Yoko Mori
- a Department of Neuropsychiatry, Molecules and Function , Ehime University Graduate School of Medicine , Toon , Ehime , Japan
| | - Kiyohiro Yamazaki
- a Department of Neuropsychiatry, Molecules and Function , Ehime University Graduate School of Medicine , Toon , Ehime , Japan
| | - Shusuke Numata
- b Department of Psychiatry, Course of Integrated Brain Sciences, Medical Informatics, Institute of Health Biosciences , The University of Tokushima Graduate School , Tokushima , Japan
| | - Shunsuke Nakata
- a Department of Neuropsychiatry, Molecules and Function , Ehime University Graduate School of Medicine , Toon , Ehime , Japan
| | - Taku Yoshida
- a Department of Neuropsychiatry, Molecules and Function , Ehime University Graduate School of Medicine , Toon , Ehime , Japan
| | - Jun-Ichi Iga
- a Department of Neuropsychiatry, Molecules and Function , Ehime University Graduate School of Medicine , Toon , Ehime , Japan
| | - Tetsuro Ohmori
- b Department of Psychiatry, Course of Integrated Brain Sciences, Medical Informatics, Institute of Health Biosciences , The University of Tokushima Graduate School , Tokushima , Japan
| | - Shu-Ichi Ueno
- a Department of Neuropsychiatry, Molecules and Function , Ehime University Graduate School of Medicine , Toon , Ehime , Japan
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22
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Wang Y, Liu L, Xin L, Fan D, Ding N, Hu Y, Cai G, Wang L, Xia Q, Li X, Yang X, Zou Y, Pan F. The -141C Ins/Del and Taq1A polymorphism in the dopamine D2 receptor gene may confer susceptibility to schizophrenia in Asian populations. J Clin Neurosci 2016; 30:1-7. [PMID: 27283386 DOI: 10.1016/j.jocn.2015.10.052] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 10/27/2015] [Accepted: 10/31/2015] [Indexed: 11/24/2022]
Abstract
It has been reported that two single nucleotide polymorphisms (SNP) Taq1A and -141C Ins/Del in the DRD2 gene may be associated with susceptibility to schizophrenia. Due to inconclusive and mixed results, a meta-analysis was conducted to further clarify the relationship between the two SNP and schizophrenia susceptibility. A systematic literature search for the association of these two SNP with schizophrenia susceptibility was conducted using PubMed, ScienceDirect, Chinese Biomedical Literature Database, and Chinese National Knowledge Infrastructure. Odds ratios (OR) with 95% confidence intervals (CI) were used to assess the strength of the associations reported. A total of 5558 schizophrenic patients and 6792 healthy controls from 31 articles were included in this study. Evidence regarding the association between -141C Ins/Del polymorphism and schizophrenia was found in the allele frequency comparison (Ins versus Del: OR 1.29, 95% CI 1.06-1.57; p=0.01, Praw=0.1, PFalse Discovery Rate=0.023). In ethnic subgroup analysis, the result revealed that the 141C Ins/Del polymorphism was associated with schizophrenia in all genetic models in Asians, but not in Caucasians. For Taq1A polymorphism, a significant association was found in the allele frequency (A1 versus A2: OR 0.71, 95% CI 0.52-0.98, p=0.03). Stratification by ethnicity indicated an association between the Taq1A polymorphism and schizophrenia in Asians, but not Caucasians. The present study suggests that the -141C Ins/Del polymorphism carries a significantly increased risk of schizophrenia, while the Taq1A polymorphism carries a significantly decreased risk of schizophrenia susceptibility in Asians.
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Affiliation(s)
- Yurong Wang
- Medical Department of Hefei Vocational and Technical College, Hefei, Anhui, China
| | - Li Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Lihong Xin
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Dazhi Fan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Ning Ding
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Yanting Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Guoqi Cai
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Li Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Qing Xia
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Xiaona Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Xiao Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Yanfeng Zou
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Faming Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China.
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23
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Kennedy JL, Xiong N, Yu J, Zai CC, Pouget JG, Li J, Liu K, Qing H, Wang T, Martin E, Levy DL, Lin Z. Increased Nigral SLC6A3 Activity in Schizophrenia Patients: Findings From the Toronto-McLean Cohorts. Schizophr Bull 2016; 42:772-81. [PMID: 26707863 PMCID: PMC4838105 DOI: 10.1093/schbul/sbv191] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
SLC6A3, which encodes the primary regulator of extracellular dopamine (DA) concentration, the DA transporter, has been implicated in schizophrenia (SCZ). However, the details of its genetic effect on risk remain largely unknown. The purpose of this candidate gene study was to identify a specificSLC6A3activity associated with SCZ by using functional genetic approaches. We first examined gene activity in DA neurons isolated from case-control postmortem nigral tissue and found that the averageSLC6A3mRNA level in controls was only 0.37-fold of that in cases (P= .0034). To understand this expression difference, we examined the association of 10 genetic markers, mostly located in the promoter region, with SCZ in 1717 subjects collected from Toronto and McLean cohorts, including 881 controls and 836 cases and identified the 5' promoter SNP rs1478435 as having a significant association signal (uncorrectedPvalue: .00462; adjustedPvalue: .0319) in unrelated Caucasians. Allele T was over-represented in controls (OR = .75); T-carrier controls had decreased mRNA levels in nigral DA neurons, contributing to the reduced activity in the controls. In vitro functional analysis confirmed that T carriers displayed attenuated enhancement of promoter activity. These findings collectively suggest that increased nigralSLC6A3activity may be a risk factor for SCZ, and may help to explain high rates of comorbidity with substance abuse.
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Affiliation(s)
- James L. Kennedy
- Neurogenetics Section, Neuroscience Research Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada;,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada;,Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Nian Xiong
- Laboratory of Psychiatric Neurogenomics, McLean Hospital, Belmont, MA;,Department of Psychiatry, Harvard Medical School, Boston, MA;,Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jinlong Yu
- Laboratory of Psychiatric Neurogenomics, McLean Hospital, Belmont, MA;,Department of Psychiatry, Harvard Medical School, Boston, MA
| | - Clement C. Zai
- Neurogenetics Section, Neuroscience Research Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada;,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada;,Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Jennie G. Pouget
- Neurogenetics Section, Neuroscience Research Department, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, Ontario, Canada;,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada;,Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Jie Li
- Laboratory of Psychiatric Neurogenomics, McLean Hospital, Belmont, MA;,Department of Psychiatry, Harvard Medical School, Boston, MA;,Institute of Psychiatry, Tianjin Mental Health Center, Tianjin, China
| | - Kefu Liu
- Laboratory of Psychiatric Neurogenomics, McLean Hospital, Belmont, MA;,Department of Psychiatry, Harvard Medical School, Boston, MA;,School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Hong Qing
- School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Tao Wang
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Eden Martin
- Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL
| | - Deborah L. Levy
- Department of Psychiatry, Harvard Medical School, Boston, MA;,Psychology Research Laboratory, McLean Hospital, Belmont, MA,Joint last author
| | - Zhicheng Lin
- Laboratory of Psychiatric Neurogenomics, McLean Hospital, Belmont, MA; Department of Psychiatry, Harvard Medical School, Boston, MA;
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24
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Lai CY, Scarr E, Udawela M, Everall I, Chen WJ, Dean B. Biomarkers in schizophrenia: A focus on blood based diagnostics and theranostics. World J Psychiatry 2016; 6:102-17. [PMID: 27014601 PMCID: PMC4804259 DOI: 10.5498/wjp.v6.i1.102] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 10/20/2015] [Accepted: 12/17/2015] [Indexed: 02/05/2023] Open
Abstract
Identifying biomarkers that can be used as diagnostics or predictors of treatment response (theranostics) in people with schizophrenia (Sz) will be an important step towards being able to provide personalized treatment. Findings from the studies in brain tissue have not yet been translated into biomarkers that are practical in clinical use because brain biopsies are not acceptable and neuroimaging techniques are expensive and the results are inconclusive. Thus, in recent years, there has been search for blood-based biomarkers for Sz as a valid alternative. Although there are some encouraging preliminary data to support the notion of peripheral biomarkers for Sz, it must be acknowledged that Sz is a complex and heterogeneous disorder which needs to be further dissected into subtype using biological based and clinical markers. The scope of this review is to critically examine published blood-based biomarker of Sz, focusing on possible uses for diagnosis, treatment response, or their relationship with schizophrenia-associated phenotype. We sorted the studies into six categories which include: (1) brain-derived neurotrophic factor; (2) inflammation and immune function; (3) neurochemistry; (4) oxidative stress response and metabolism; (5) epigenetics and microRNA; and (6) transcriptome and proteome studies. This review also summarized the molecules which have been conclusively reported as potential blood-based biomarkers for Sz in different blood cell types. Finally, we further discusses the pitfall of current blood-based studies and suggest that a prediction model-based, Sz specific, blood oriented study design as well as standardize blood collection conditions would be useful for Sz biomarker development.
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25
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Taraskina AE, Nasyrova RF, Grunina MN, Zabotina AM, Ivashchenko DV, Ershov EE, Sosin DN, Kirnichnaya KA, Ivanov MV, Krupitsky EM. [Dopamine neurotransmission of peripheral blood lymphocytes is a potential biomarker of psychiatric and neurological disorders]. Zh Nevrol Psikhiatr Im S S Korsakova 2015; 115:65-69. [PMID: 26569007 DOI: 10.17116/jnevro20151159165-69] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Current literature on a role of dopamine in the development of mental and neurological disorders suggests that the discovery of endogenous dopamine in peripheral blood lymphocytes gave rise to a new line of research. Dopamine receptors are not only found on cells of the innate immune response (nonspecific), but also on cells of adaptive immune response (specific): T and B lymphocytes. These facts bring a new evidence of interrelationships between the peripheral immune system, neuroinflammation and neurodegeneration and suggest new ways for investigation of the pathogenesis of different mental and neurological disorders, in particular Parkinson's disease, Alzheimer's disease and schizophrenia. There is strong evidence that ligands of dopamine receptors can change the expression of coding genes both in central neurons and in peripheral cells. Thus, peripheral blood lymphocytes may prove a cellular tool to identify dopamine transmission disturbances in neuropsychiatric diseases, as well as to monitor the effects of pharmacological treatment.
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Affiliation(s)
- A E Taraskina
- Bekhterev St. Petersburg Psychoneurological Research Institute, St. Petersburg; Pavlov First St. Petersburg State Medical University, St. Petersburg; Konstantinov Petersburg Nuclear Physics Institute, National Research Centre 'Kurchatov Institute', St. Petersburg; Mechnikov North-Western State Medical University, St. Petersburg
| | - R F Nasyrova
- Bekhterev St. Petersburg Psychoneurological Research Institute, St. Petersburg
| | - M N Grunina
- Konstantinov Petersburg Nuclear Physics Institute, National Research Centre 'Kurchatov Institute', St. Petersburg
| | - A M Zabotina
- Konstantinov Petersburg Nuclear Physics Institute, National Research Centre 'Kurchatov Institute', St. Petersburg
| | - D V Ivashchenko
- Bekhterev St. Petersburg Psychoneurological Research Institute, St. Petersburg
| | - E E Ershov
- Kashchenko St. Petersburg City Psychiatric Hospital #1, St. Petersburg
| | - D N Sosin
- Bekhterev St. Petersburg Psychoneurological Research Institute, St. Petersburg
| | - K A Kirnichnaya
- Bekhterev St. Petersburg Psychoneurological Research Institute, St. Petersburg
| | - M V Ivanov
- Bekhterev St. Petersburg Psychoneurological Research Institute, St. Petersburg
| | - E M Krupitsky
- Bekhterev St. Petersburg Psychoneurological Research Institute, St. Petersburg; Pavlov First St. Petersburg State Medical University, St. Petersburg
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26
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Cui Y, Prabhu V, Nguyen TB, Yadav BK, Chung YC. The mRNA Expression Status of Dopamine Receptor D2, Dopamine Receptor D3 and DARPP-32 in T Lymphocytes of Patients with Early Psychosis. Int J Mol Sci 2015; 16:26677-86. [PMID: 26561806 PMCID: PMC4661842 DOI: 10.3390/ijms161125983] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 10/22/2015] [Accepted: 10/23/2015] [Indexed: 01/22/2023] Open
Abstract
Peripheral blood lymphocytes are an attractive tool because there is accumulating evidence indicating that lymphocytes may be utilized as a biomarker in the field of psychiatric study as they could reveal the condition of cells distributed in the brain. Here, we measured the mRNA expression status of dopamine receptor D2 (DRD2), DRD3, and dopamine and cyclic adenosine 3',5'-monophosphate regulated phosphoprotein-32 (DARPP-32) in T lymphocytes of patients with early psychosis by quantitative real-time polymerase chain reaction (q-PCR) and explored the relationships between their mRNA levels and the psychopathological status of patients. The present study demonstrated that the mRNA expression levels of DRD3 in T lymphocytes were significantly different among controls, and in patients with psychotic disorder not otherwise specified (NOS) and schizophrenia/schizophreniform disorder. However, no significant differences in mRNA expression levels of DRD2 and DARPP-32 were found among the three groups. We found a significant positive correlation between the DRD2 mRNA level and the score of the excited factor of the Positive and Negative Syndrome Scale (PANSS) in patients with schizophrenia/schizophreniform disorder. These findings suggest that DRD3 mRNA levels may serve as a potential diagnostic biomarker differentiating patients with early psychosis from controls.
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Affiliation(s)
- Yin Cui
- Department of Psychiatry, Chonbuk National University Medical School, Jeonju 561-756, Korea.
- Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju 561-756, Korea.
| | - Vishwanath Prabhu
- Department of Psychiatry, Chonbuk National University Medical School, Jeonju 561-756, Korea.
- Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju 561-756, Korea.
| | - Thong Ba Nguyen
- Department of Psychiatry, Chonbuk National University Medical School, Jeonju 561-756, Korea.
- Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju 561-756, Korea.
| | - Binod Kumar Yadav
- Department of Psychiatry, Chonbuk National University Medical School, Jeonju 561-756, Korea.
- Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju 561-756, Korea.
| | - Young-Chul Chung
- Department of Psychiatry, Chonbuk National University Medical School, Jeonju 561-756, Korea.
- Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, Jeonju 561-756, Korea.
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27
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Adaptive Immunity in Schizophrenia: Functional Implications of T Cells in the Etiology, Course and Treatment. J Neuroimmune Pharmacol 2015; 10:610-9. [PMID: 26162591 DOI: 10.1007/s11481-015-9626-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 07/03/2015] [Indexed: 12/21/2022]
Abstract
Schizophrenia is a severe and highly complex neurodevelopmental disorder with an unknown etiopathology. Recently, immunopathogenesis has emerged as one of the most compelling etiological models of schizophrenia. Over the past few years considerable research has been devoted to the role of innate immune responses in schizophrenia. The findings of such studies have helped to conceptualize schizophrenia as a chronic low-grade inflammatory disorder. Although the contribution of adaptive immune responses has also been emphasized, however, the precise role of T cells in the underlying neurobiological pathways of schizophrenia is yet to be ascertained comprehensively. T cells have the ability to infiltrate brain and mediate neuro-immune cross-talk. Conversely, the central nervous system and the neurotransmitters are capable of regulating the immune system. Neurotransmitter like dopamine, implicated widely in schizophrenia risk and progression can modulate the proliferation, trafficking and functions of T cells. Within brain, T cells activate microglia, induce production of pro-inflammatory cytokines as well as reactive oxygen species and subsequently lead to neuroinflammation. Importantly, such processes contribute to neuronal injury/death and are gradually being implicated as mediators of neuroprogressive changes in schizophrenia. Antipsychotic drugs, commonly used to treat schizophrenia are also known to affect adaptive immune system; interfere with the differentiation and functions of T cells. This understanding suggests a pivotal role of T cells in the etiology, course and treatment of schizophrenia and forms the basis of this review.
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28
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Schwarz R, Reif A, Scholz CJ, Weissflog L, Schmidt B, Lesch KP, Jacob C, Reichert S, Heupel J, Volkert J, Kopf J, Hilscher M, Weber H, Kittel-Schneider S. A preliminary study on methylphenidate-regulated gene expression in lymphoblastoid cells of ADHD patients. World J Biol Psychiatry 2015; 16:180-9. [PMID: 25162476 DOI: 10.3109/15622975.2014.948064] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVES Methylphenidate (MPH) is a commonly used stimulant medication for treating attention-deficit/hyperactivity disorder (ADHD). Besides inhibiting monoamine reuptake there is evidence that MPH also influences gene expression directly. METHODS We investigated the impact of MPH treatment on gene expression levels of lymphoblastoid cells derived from adult ADHD patients and healthy controls by hypothesis-free, genome-wide microarray analysis. Significant findings were subsequently confirmed by quantitative Real-Time PCR (qRT PCR) analysis. RESULTS The microarray analysis from pooled samples after correction for multiple testing revealed 138 genes to be marginally significantly regulated due to MPH treatment, and one gene due to diagnosis. By qRT PCR we could confirm that GUCY1B3 expression was differential due to diagnosis. We verified chronic MPH treatment effects on the expression of ATXN1, HEY1, MAP3K8 and GLUT3 in controls as well as acute treatment effects on the expression of NAV2 and ATXN1 specifically in ADHD patients. CONCLUSIONS Our preliminary results demonstrate MPH treatment differences in ADHD patients and healthy controls in a peripheral primary cell model. Our results need to be replicated in larger samples and also using patient-derived neuronal cell models to validate the contribution of those genes to the pathophysiology of ADHD and mode of action of MPH.
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Affiliation(s)
- Ricarda Schwarz
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital of Würzburg , Würzburg , Germany
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29
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Yao J, Pan YQ, Ding M, Pang H, Wang BJ. Association between DRD2 (rs1799732 and rs1801028) and ANKK1 (rs1800497) polymorphisms and schizophrenia: a meta-analysis. Am J Med Genet B Neuropsychiatr Genet 2015; 168B:1-13. [PMID: 25504812 DOI: 10.1002/ajmg.b.32281] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 10/16/2014] [Indexed: 01/22/2023]
Abstract
The role of dopamine D2 receptor (DRD2) polymorphisms in schizophrenia remains controversial. We performed a meta-analysis to determine whether DRD2 polymorphisms influence the risk of schizophrenia and examined the relationship between rs1799732, rs1801028, and rs1800rs028 an23381d rs1800497 genetic variants and the etiology of schizophrenia. Relevant case-control studies were retrieved by database searches and selected according to established inclusion criteria. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to evaluate the strength of the associations. Meta-regression, subgroup analysis, sensitivity analysis, and cumulative meta-analysis were performed. A total of 76 studies with 16096 cases and 18965 controls were included. Specifically, 24 studies with 6075 cases and 6643 controls involved rs1799732, 36 studies with 8043 cases and 10194 controls involved rs1801028 and 16 studies with 1978 cases and 2128 controls involved rs1800497. No significant associations were observed between rs1799732 and rs1800rs732 and rs1800497 and schizophrenia. The rs1801028 locus was associated with schizophrenia, with a pooled OR of 1.221 (95% CI = 1.037-1.438, P = 0.016). This meta-analysis indicates that the rs1801028 locus may be associated with schizophrenia. These data provide possible references for future case-control studies related to schizophrenia.
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Affiliation(s)
- Jun Yao
- School of Forensic Medicine, China Medical University, Shenyang, 110001, China
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Ota VK, Noto C, Gadelha A, Santoro ML, Spindola LM, Gouvea ES, Stilhano RS, Ortiz BB, Silva PN, Sato JR, Han SW, Cordeiro Q, Bressan RA, Belangero SI. Changes in gene expression and methylation in the blood of patients with first-episode psychosis. Schizophr Res 2014; 159:358-64. [PMID: 25270546 DOI: 10.1016/j.schres.2014.09.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 09/02/2014] [Accepted: 09/05/2014] [Indexed: 01/01/2023]
Abstract
Schizophrenia is a severe mental health disorder with high heritability. The investigation of individuals during their first-episode psychosis (FEP), before the progression of psychotic disorders and especially before treatment with antipsychotic medications, is particularly helpful for understanding this complex disease and for the identification of potential biomarkers. In this study, we compared the expression of genes that are involved in neurotransmission and neurodevelopment of antipsychotic-naive FEP in the peripheral blood of patients (n=51) and healthy controls (n=51). In addition, we investigated the differentially expressed genes with respect to a) DNA methylation, b) the correlation between gene expression and clinical variables (PANSS), and c) gene expression changes after risperidone treatment. Expression levels of 11 genes were quantified with SYBR Green. For methylation analysis, bisulfite sequencing was performed. A significant decrease in GCH1 mRNA levels was observed in FEP patients relative to controls. Also, when we compare the FEP patients after risperidone treatment with controls, this difference remains significant, and no significant differences were observed in GCH1 mRNA levels when comparing patients before and after risperidone treatment. Additionally, although the differences were non-significant after Bonferroni correction, the expression of GCH1 seemed to be correlated with PANSS scores, and the GCH1 promoter region was more methylated in FEP than in controls, thus corroborating the results obtained at the mRNA level. Few studies have been conducted on GCH1, and future studies are needed to clarify its potential role in the progression of schizophrenia.
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Affiliation(s)
- Vanessa Kiyomi Ota
- Genetics Division of Department of Morphology and Genetics of Universidade Federal de Sao Paulo (UNIFESP), Brazil; LiNC-Interdisciplinary Laboratory of Clinical Neurosciences of UNIFESP, Brazil.
| | - Cristiano Noto
- LiNC-Interdisciplinary Laboratory of Clinical Neurosciences of UNIFESP, Brazil; Department of Psychiatry of UNIFESP, Brazil; Department of Psychiatry of Irmandade da Santa Casa de Misericórdia de São Paulo (ISCMSP), Brazil.
| | - Ary Gadelha
- LiNC-Interdisciplinary Laboratory of Clinical Neurosciences of UNIFESP, Brazil; Department of Psychiatry of UNIFESP, Brazil.
| | - Marcos Leite Santoro
- Genetics Division of Department of Morphology and Genetics of Universidade Federal de Sao Paulo (UNIFESP), Brazil; LiNC-Interdisciplinary Laboratory of Clinical Neurosciences of UNIFESP, Brazil.
| | - Leticia Maria Spindola
- Genetics Division of Department of Morphology and Genetics of Universidade Federal de Sao Paulo (UNIFESP), Brazil; LiNC-Interdisciplinary Laboratory of Clinical Neurosciences of UNIFESP, Brazil.
| | - Eduardo Sauerbronn Gouvea
- Department of Psychiatry of UNIFESP, Brazil; Department of Psychiatry of Irmandade da Santa Casa de Misericórdia de São Paulo (ISCMSP), Brazil.
| | | | | | - Patricia Natalia Silva
- Genetics Division of Department of Morphology and Genetics of Universidade Federal de Sao Paulo (UNIFESP), Brazil; LiNC-Interdisciplinary Laboratory of Clinical Neurosciences of UNIFESP, Brazil; Department of Psychiatry of UNIFESP, Brazil.
| | - João Ricardo Sato
- LiNC-Interdisciplinary Laboratory of Clinical Neurosciences of UNIFESP, Brazil; Center of Mathematics, Computation and Cognition, Universidade Federal do ABC, Brazil.
| | | | - Quirino Cordeiro
- Department of Psychiatry of UNIFESP, Brazil; Department of Psychiatry of Irmandade da Santa Casa de Misericórdia de São Paulo (ISCMSP), Brazil.
| | - Rodrigo Affonseca Bressan
- LiNC-Interdisciplinary Laboratory of Clinical Neurosciences of UNIFESP, Brazil; Department of Psychiatry of UNIFESP, Brazil.
| | - Sintia Iole Belangero
- Genetics Division of Department of Morphology and Genetics of Universidade Federal de Sao Paulo (UNIFESP), Brazil; LiNC-Interdisciplinary Laboratory of Clinical Neurosciences of UNIFESP, Brazil; Department of Psychiatry of UNIFESP, Brazil.
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31
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Liu L, Fan D, Ding N, Hu Y, Cai G, Wang L, Xin L, Xia Q, Li X, Xu S, Xu J, Yang X, Zou Y, Pan F. The relationship between DRD2 gene polymorphisms (C957T and C939T) and schizophrenia: a meta-analysis. Neurosci Lett 2014; 583:43-8. [PMID: 25240594 DOI: 10.1016/j.neulet.2014.09.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 08/14/2014] [Accepted: 09/09/2014] [Indexed: 01/02/2023]
Abstract
Schizophrenia is a common, complex multi-factorial psychiatric disorder. Many studies have reported associations between the C957T and C939T polymorphisms in Dopamine D2 receptor (DRD2) gene and schizophrenia, but results are inconsistent. To derive a more precise estimation of the relationship, a meta-analysis was conducted to systematically summarize the possibility. We included 13 articles involving 3079 schizophrenia cases and 3851 healthy controls. Positive associations were found between C957T polymorphism and schizophrenia risk in C vs. T (OR=1.26, 95% CI=1.09-1.46, Praw=0.002, PFDR=0.005) and CC+CT vs. TT (OR=1.47, 95% CI=1.25-1.73, Praw<0.001, PFDR<0.001). When stratified by race, a significantly increased risk of schizophrenia was observed in Caucasians, but not in Asians. No association between C939T polymorphism and schizophrenia was found in overall or Asian population. Our study suggested that C957T of DRD2 gene polymorphism is likely to be a risk factor for schizophrenia, especially in Caucasian.
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Affiliation(s)
- Li Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Dazhi Fan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Ning Ding
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Yanting Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Guoqi Cai
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Li Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Lihong Xin
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Qin Xia
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Xiaona Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Shengqian Xu
- Department of Rheumatism and Immunity, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Jianhua Xu
- Department of Rheumatism and Immunity, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Xiao Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Yanfeng Zou
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China
| | - Faming Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui 230032, China.
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Yin J, Lin J, Luo X, Chen Y, Li Z, Ma G, Li K. miR-137: a new player in schizophrenia. Int J Mol Sci 2014; 15:3262-71. [PMID: 24566148 PMCID: PMC3958910 DOI: 10.3390/ijms15023262] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Revised: 02/12/2014] [Accepted: 02/14/2014] [Indexed: 12/14/2022] Open
Abstract
Schizophrenia is a complex genetic disease and characterized by affective, cognitive, neuromorphological, and molecular abnormalities that may have a neurodevelopmental origin. MicroRNAs (miRNAs) are critical to neurodevelopment and adult neuronal processes by modulating the activity of multiple genes within biological networks. MiR-137 as a brain-enriched microRNA, plays important roles in regulating embryonic neural stem cells (NSCs) fate determination, neuronal proliferation and differentiation, and synaptic maturation. Its dysregulation causes changes in the gene expression regulation network of the nervous system, thus inducing mental disorders. Recently, miR-137 has been confirmed as a gene related to schizophrenia susceptibility. In the following review, we summarize the expression pattern, epigenetic regulation and functions of miR-137. A more complete picture of the miR-137, which is dysregulated in psychiatric illness, may improve our understanding of the molecular mechanisms underlying schizophrenia.
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Affiliation(s)
- Jingwen Yin
- Institute of Neurology, Guangdong Medical College, Zhanjiang 524001, China.
| | - Juda Lin
- Department of Psychiatry, Affiliated Hospital of Guangdong Medical College, Zhanjiang 524001, China.
| | - Xudong Luo
- Department of Psychiatry, Affiliated Hospital of Guangdong Medical College, Zhanjiang 524001, China.
| | - Yanyan Chen
- Institute of Neurology, Guangdong Medical College, Zhanjiang 524001, China.
| | - Zheng Li
- Unit on Synapse Development and Plasticity, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Guoda Ma
- Institute of Neurology, Guangdong Medical College, Zhanjiang 524001, China.
| | - Keshen Li
- Institute of Neurology, Guangdong Medical College, Zhanjiang 524001, China.
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