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Yan L, Li Y, Fan F, Gou M, Xuan F, Feng W, Chithanathan K, Li W, Huang J, Li H, Chen W, Tian B, Wang Z, Tan S, Zharkovsky A, Hong LE, Tan Y, Tian L. CSF1R regulates schizophrenia-related stress response and vascular association of microglia/macrophages. BMC Med 2023; 21:286. [PMID: 37542262 PMCID: PMC10403881 DOI: 10.1186/s12916-023-02959-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 06/22/2023] [Indexed: 08/06/2023] Open
Abstract
BACKGROUND Microglia are known to regulate stress and anxiety in both humans and animal models. Psychosocial stress is the most common risk factor for the development of schizophrenia. However, how microglia/brain macrophages contribute to schizophrenia is not well established. We hypothesized that effector molecules expressed in microglia/macrophages were involved in schizophrenia via regulating stress susceptibility. METHODS We recruited a cohort of first episode schizophrenia (FES) patients (n = 51) and age- and sex-paired healthy controls (HCs) (n = 46) with evaluated stress perception. We performed blood RNA-sequencing (RNA-seq) and brain magnetic resonance imaging, and measured plasma level of colony stimulating factor 1 receptor (CSF1R). Furthermore, we studied a mouse model of chronic unpredictable stress (CUS) combined with a CSF1R inhibitor (CSF1Ri) (n = 9 ~ 10/group) on anxiety behaviours and microglial biology. RESULTS FES patients showed higher scores of perceived stress scale (PSS, p < 0.05), lower blood CSF1R mRNA (FDR = 0.003) and protein (p < 0.05) levels, and smaller volumes of the superior frontal gyrus and parahippocampal gyrus (both FDR < 0.05) than HCs. In blood RNA-seq, CSF1R-associated differentially expressed blood genes were related to brain development. Importantly, CSF1R facilitated a negative association of the superior frontal gyrus with PSS (p < 0.01) in HCs but not FES patients. In mouse CUS+CSF1Ri model, similarly as CUS, CSF1Ri enhanced anxiety (both p < 0.001). Genes for brain angiogenesis and intensity of CD31+-blood vessels were dampened after CUS-CSF1Ri treatment. Furthermore, CSF1Ri preferentially diminished juxta-vascular microglia/macrophages and induced microglia/macrophages morphological changes (all p < 0.05). CONCLUSION Microglial/macrophagic CSF1R regulated schizophrenia-associated stress and brain angiogenesis.
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Affiliation(s)
- Ling Yan
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Yanli Li
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Peking University HuiLongGuan Clinical Medical School, Beijing, P. R. China
| | - Fengmei Fan
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Peking University HuiLongGuan Clinical Medical School, Beijing, P. R. China
| | - Mengzhuang Gou
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Peking University HuiLongGuan Clinical Medical School, Beijing, P. R. China
| | - Fangling Xuan
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Wei Feng
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Peking University HuiLongGuan Clinical Medical School, Beijing, P. R. China
| | - Keerthana Chithanathan
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Wei Li
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Peking University HuiLongGuan Clinical Medical School, Beijing, P. R. China
| | - Junchao Huang
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Peking University HuiLongGuan Clinical Medical School, Beijing, P. R. China
| | - Hongna Li
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Peking University HuiLongGuan Clinical Medical School, Beijing, P. R. China
| | - Wenjin Chen
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Peking University HuiLongGuan Clinical Medical School, Beijing, P. R. China
| | - Baopeng Tian
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Peking University HuiLongGuan Clinical Medical School, Beijing, P. R. China
| | - Zhiren Wang
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Peking University HuiLongGuan Clinical Medical School, Beijing, P. R. China
| | - Shuping Tan
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Peking University HuiLongGuan Clinical Medical School, Beijing, P. R. China
| | - Alexander Zharkovsky
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - L Elliot Hong
- Department of Psychiatry, School of Medicine, Maryland Psychiatric Research Center, University of Maryland, Baltimore, USA
| | - Yunlong Tan
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Peking University HuiLongGuan Clinical Medical School, Beijing, P. R. China.
| | - Li Tian
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia.
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Peking University HuiLongGuan Clinical Medical School, Beijing, P. R. China.
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Cardoso MGDF, de Barros JLVM, de Queiroz RAB, Rocha NP, Silver C, da Silva AS, da Silva EWM, Roque IG, Carvalho JDL, Dos Santos LF, Cota LB, Lemos LM, Miranda MF, Miranda MF, Vianna PP, Oliveira RA, de Oliveira Furlam T, Soares TSS, Pedroso VSP, Faleiro RM, Vieira ÉLM, Teixeira AL, de Souza LC, de Miranda LS. Potential Biomarkers of Impulsivity in Mild Traumatic Brain Injury: A Pilot Study. Behav Brain Res 2023; 449:114457. [PMID: 37116663 DOI: 10.1016/j.bbr.2023.114457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 04/13/2023] [Accepted: 04/25/2023] [Indexed: 04/30/2023]
Abstract
Very few studies have investigated cognition and impulsivity following mild traumatic brain injury (mTBI) in the general population. Furthermore, the neurobiological mechanisms underlying post-TBI neurobehavioral syndromes are complex and remain to be fully clarified. Herein, we took advantage of machine learning based-modeling to investigate potential biomarkers of mTBI-associated impulsivity. Twenty-one mTBI patients were assessed within one-month post-TBI and their data were compared to 19 healthy controls on measures of impulsivity (Barratt Impulsiveness Scale - BIS), executive functioning, episodic memory, self-report cognitive failures and blood biomarkers of inflammation, vascular and neuronal damage. mTBI patients were significantly more impulsive than controls in BIS total and subscales. Serum levels of sCD40L, Cathepsin D, IL-4, Neuropilin-1, IFN-α2, and Copeptin were associated with impulsivity in mTBI patients. Besides showing that mTBI are associated with impulsivity in non-military people, we unveiled different pathophysiological pathways potentially implicated in mTBI-related impulsivity.
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Affiliation(s)
- Maíra Glória de Freitas Cardoso
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil; Programa de Pós-Graduação em Neurociências da UFMG
| | - João Luís Vieira Monteiro de Barros
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil
| | - Rafael Alves Bonfim de Queiroz
- Departamento de Computação, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto-UFOP, Ouro Preto, MG, Brasil
| | - Natalia Pessoa Rocha
- The Mitchell Center for Alzheimer's Disease and Related Brain Disorders, Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Carlisa Silver
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil
| | - Agnes Stéphanie da Silva
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil; Programa de Pós-Graduação em Neurociências da UFMG
| | - Ewelin Wasner Machado da Silva
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil
| | - Isadora Gonçalves Roque
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil
| | - Júlia de Lima Carvalho
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil
| | - Laura Ferreira Dos Santos
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil
| | - Letícia Bitencourt Cota
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil
| | - Lucas Miranda Lemos
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil
| | - Mariana Figueiredo Miranda
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil
| | - Millena Figueiredo Miranda
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil
| | - Pedro Parenti Vianna
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil
| | - Rafael Arantes Oliveira
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil
| | - Tiago de Oliveira Furlam
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil
| | - Túlio Safar Sarquis Soares
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil
| | - Vinicius Sousa Pietra Pedroso
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil
| | - Rodrigo Moreira Faleiro
- Hospital João XXIII, Fundação Hospitalar do Estado de Minas Gerais - FHEMIG. Belo Horizonte, Minas Gerais, Brasil
| | - Érica Leandro Marciano Vieira
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil; Centre for Addiction and Mental Health - CAMH, Toronto, Canada
| | - Antônio Lúcio Teixeira
- Neuropsychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston. Houston, Texas; Faculdade Santa Casa BH, Belo Horizonte, Brasil
| | - Leonardo Cruz de Souza
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil; Programa de Pós-Graduação em Neurociências da UFMG; Departamento de Clínica Médica, Faculdade de Medicina, UFMG, Belo Horizonte, MG, Brasil.
| | - Line Silva de Miranda
- Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG). Belo Horizonte, Minas Gerais, Brasil; Programa de Pós-Graduação em Neurociências da UFMG; Laboratório de Neurobiologia, Departamento de Morfologia, Instituto de Ciências Biológicas, UFMG, Brasil.
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Chronic stress and stressful emotional contagion affect the empathy-like behavior of rats. COGNITIVE, AFFECTIVE & BEHAVIORAL NEUROSCIENCE 2023:10.3758/s13415-023-01081-9. [PMID: 36899132 DOI: 10.3758/s13415-023-01081-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/15/2023] [Indexed: 03/12/2023]
Abstract
Empathy is a potential motivation for prosocial behaviors that is related to many psychiatric diseases, such as major depressive disorder; however, its neural mechanisms remain unclear. To elucidate the relationship between empathy and stress, we established a chronic stress contagion (SC) procedure combined with chronic unpredictable mild stress (CUMS) to investigate (1) whether depressive rats show impaired empathy-like behavior toward fearful conspecifics, (2) whether frequent social contact with normal familiar conspecifics (social support) alleviates the negative effects of CUMS, and (3) the effect of long-term exposure to a depressed partner on emotional and empathic responses in normal rats. We found that the CUMS group showed less empathy-like behavior in the social transfer of fear model (STFM), as indicated by less social interaction with the demonstrator and reduced freezing behavior in the fear-expression test. Social contact partially alleviated depression-like behaviors and the negative effect of CUMS in the fear-transfer test. The normal rats who experienced stress contagion from daily exposure to a depressed partner for 3 weeks showed lower anxiety and increased social response in the fear-transfer test than the control group. We concluded that chronic stress impairs empathy-like behaviors, while social contact partially buffers the effect of CUMS. Thus, social contact or contagion of stress is mutually beneficial to both stressed individuals and nonstressed partners. Higher dopamine and lower norepinephrine levels in the basolateral amygdala probably contributed to these beneficial effects.
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Si L, Xiao L, Xie Y, Xu H, Yuan G, Xu W, Wang G. Social isolation after chronic unpredictable mild stress perpetuates depressive-like behaviors, memory deficits and social withdrawal via inhibiting ERK/KEAP1/NRF2 signaling. J Affect Disord 2023; 324:576-588. [PMID: 36584714 DOI: 10.1016/j.jad.2022.12.092] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 12/17/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022]
Abstract
BACKGROUND Social withdrawal in patients with depression can aggravate depressive symptoms. However, few studies focus on the behavioral changes of social isolation after CUMS. NRF2 had been reported to be down-regulated after CUMS. But whether NRF2 participates in behavioral changes induced by social isolation after CUMS remains unclear. This study aims to develop a new model combined social isolation with CUMS, and investigate whether such behavioral changes are related to NRF2 signaling. METHODS This study included two stages. In Stage 1, rats were subjected to 4-week CUMS and CUMS-susceptible rats were selected. In Stage 2, the CUMS-susceptible rats received 4-week social isolation or social support. Behavioral tests were carried out to observe behavioral changes, including sucrose preference test, forced swimming test, open field test, novel object recognition and social interaction test. QRT-PCR, western blot and immunofluorescence staining detected the ERK/KEAP1/NRF2 signaling. RESULTS CUMS-susceptible rats exhibited depressive-like behaviors accompanied by the down-regulated ERK/KEAP1/NRF2 signaling in hippocampus. In Stage 2, compared with 4-week social support (group CUMSG), 4-week social isolation (group CUMSI) perpetuated the depressive-like behaviors, memory deficits and social withdrawal in CUMS-susceptible rats, as well as lower levels of p-ERK, NRF2, p-NRF2, HO-1 and NQO1, and the higher levels of KEAP1 in hippocampus. CONCLUSION These findings suggested that social isolation after CUMS perpetuated depressive-like behaviors, memory deficits and social withdrawal via inhibiting ERK/KEAP1/NRF2 signaling. This study provided molecular evidence for the effects of post-stress social isolation on mental health, and the antioxidant stress signaling might be a target to rescue these.
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Affiliation(s)
- Lujia Si
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, People's Republic of China.
| | - Ling Xiao
- Department of Psychiatry and Institute of Neuropsychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, People's Republic of China
| | - Yinping Xie
- Department of Psychiatry and Institute of Neuropsychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, People's Republic of China.
| | - Hong Xu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, People's Republic of China
| | - Guohao Yuan
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, People's Republic of China
| | - Wenqian Xu
- Department of Psychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, People's Republic of China
| | - Gaohua Wang
- Department of Psychiatry and Institute of Neuropsychiatry, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, People's Republic of China; Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan 430071, Hubei, People's Republic of China.
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Myers S, McCracken K, Buck DJ, Curtis JT, Davis RL. Anti-inflammatory effects of β-FNA are sex-dependent in a pre-clinical model of LPS-induced inflammation. J Inflamm (Lond) 2023; 20:4. [PMID: 36698151 PMCID: PMC9878921 DOI: 10.1186/s12950-023-00328-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 01/15/2023] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Inflammation is present in neurological and peripheral disorders. Thus, targeting inflammation has emerged as a viable option for treating these disorders. Previous work indicated pretreatment with beta-funaltrexamine (β-FNA), a selective mu-opioid receptor (MOR) antagonist, inhibited inflammatory signaling in vitro in human astroglial cells, as well as lipopolysaccharide (LPS)-induced neuroinflammation and sickness-like-behavior in mice. This study explores the protective effects of β-FNA when treatment occurs 10 h after LPS administration and is the first-ever investigation of the sex-dependent effects of β-FNA on LPS-induced inflammation in the brain and peripheral tissues, including the intestines. RESULTS Male and female C57BL/6J mice were administered LPS followed by treatment with β-FNA-immediately or 10 h post-LPS. Sickness- and anxiety-like behavior were assessed using an open-field test and an elevated-plus-maze test, followed by the collection of whole brain, hippocampus, prefrontal cortex, cerebellum/brain stem, plasma, spleen, liver, large intestine (colon), proximal small intestine, and distal small intestine. Levels of inflammatory chemokines/cytokines (interferon γ-induced-protein, IP-10 (CXCL10); monocyte-chemotactic-protein 1, MCP-1 (CCL2); interleukin-6, IL-6; interleukin-1β, IL-1β; and tumor necrosis factor-alpha, TNF-α) in tissues were measured using an enzyme-linked immunosorbent assay. Western blot analysis was used to assess nuclear factor-kappa B (NF-κB) expression. There were sex-dependent differences in LPS-induced inflammation across brain regions and peripheral tissues. Overall, LPS-induced CXCL10, CCL2, TNF-α, and NF-κB were most effectively downregulated by β-FNA; and β-FNA effects differed across brain regions, peripheral tissues, timing of the dose, and in some instances, in a sex-dependent manner. β-FNA reduced LPS-induced anxiety-like behavior most effectively in female mice. CONCLUSION These findings provide novel insights into the sex-dependent anti-inflammatory effects of β-FNA and advance this agent as a potential therapeutic option for reducing both neuroinflammation an intestinal inflammation.
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Affiliation(s)
- Stephanie Myers
- grid.261367.70000 0004 0542 825XDepartment of Pharmacology/Physiology, Oklahoma State University Center for Health Sciences, 1111 West 17th Street, Tulsa, OK 74107 USA
| | - Kelly McCracken
- grid.261367.70000 0004 0542 825XDepartment of Pharmacology/Physiology, Oklahoma State University Center for Health Sciences, 1111 West 17th Street, Tulsa, OK 74107 USA
| | - Daniel J. Buck
- grid.261367.70000 0004 0542 825XDepartment of Pharmacology/Physiology, Oklahoma State University Center for Health Sciences, 1111 West 17th Street, Tulsa, OK 74107 USA
| | - J. Thomas Curtis
- grid.261367.70000 0004 0542 825XDepartment of Pharmacology/Physiology, Oklahoma State University Center for Health Sciences, 1111 West 17th Street, Tulsa, OK 74107 USA
| | - Randall L. Davis
- grid.261367.70000 0004 0542 825XDepartment of Pharmacology/Physiology, Oklahoma State University Center for Health Sciences, 1111 West 17th Street, Tulsa, OK 74107 USA
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Xuan FL, Yan L, Li Y, Fan F, Deng H, Gou M, Chithanathan K, Heinla I, Yuan L, Seppa K, Zharkovsky A, Kalda A, Hong LE, Hu GF, Tan Y, Tian L. Glial receptor PLXNB2 regulates schizophrenia-related stress perception via the amygdala. Front Immunol 2022; 13:1005067. [PMID: 36325348 PMCID: PMC9619215 DOI: 10.3389/fimmu.2022.1005067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/30/2022] [Indexed: 11/30/2022] Open
Abstract
Stress is a trigger for the development of psychiatric disorders. However, how stress trait differs in schizophrenia patients is still unclear. Stress also induces and exacerbates immune activation in psychiatric disorders. Plexins (Plxn) and its ligands semaphorins (Sema) are important cellular receptors with plural functions in both the brain and the immune system. Recently, the role of Plxn/Sema in regulation of neuroinflammation was also noticed. Here, when investigating immune mechanisms underlying stress susceptibility in schizophrenia, we discovered the role of Plxnb2 in stress response. Patients of first-episode schizophrenia (FES) with high stress (FES-hs, n=51) and low stress (FES-ls, n=50) perception and healthy controls (HCs) (n=49) were first recruited for neuroimaging and blood bulk RNA sequencing (RNA-seq). A mouse model of chronic unpredictable stress (CUS) and intra-amygdaloid functional blocking of Plxnb2 were further explored to depict target gene functions. Compared to HCs, FES-hs patients had bigger caudate and thalamus (FDR=0.02&0.001, respectively) whereas FES-ls patients had smaller amygdala (FDR=0.002). Blood RNA-seq showed differentially expressed PLXNB2 and its ligands among patient groups and HCs (FDR<0.05~0.01). Amygdaloid size and PLXNB2 level were both negatively correlated with stress perception (p<0.01&0.05, respectively), which fully mediated the amygdaloid positive association with PLXNB2 expression (β=0.9318, 95% CI: 0.058~1.886) in FES-hs patients. In mice, Plxnb2 was enriched in astrocytes and microglia and CUS reduced its expression in astrocytes (p<0.05). Inhibition of amygdaloid Plxnb2 by its functional blocking monoclonal antibody (mAb)-102 induced mice anxiety (p<0.05), amygdaloid enlargement (p<0.05), and microglial ramification (p<0.001) compared to saline. These data suggest that PLXNB2 regulates amygdala-dependent stress responses.
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Affiliation(s)
- Fang-Ling Xuan
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Ling Yan
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Yanli Li
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Beijing, China
| | - Fengmei Fan
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Beijing, China
| | - Hu Deng
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Beijing, China
| | - Mengzhuang Gou
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Beijing, China
| | - Keerthana Chithanathan
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Indrek Heinla
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Liang Yuan
- Department of Medicine, Tufts Medical Center, Boston, MA, United States
| | - Kadri Seppa
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Alexander Zharkovsky
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - Anti Kalda
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
| | - L. Elliot Hong
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland, School of Medicine, Baltimore, MD, United States
| | - Guo-Fu Hu
- Department of Medicine, Tufts Medical Center, Boston, MA, United States
| | - Yunlong Tan
- Psychiatry Research Centre, Beijing Huilongguan Hospital, Peking University Health Science Center, Beijing, China
- *Correspondence: Li Tian, ; Yunlong Tan,
| | - Li Tian
- Institute of Biomedicine and Translational Medicine, Faculty of Medicine, University of Tartu, Tartu, Estonia
- *Correspondence: Li Tian, ; Yunlong Tan,
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Ren XH, Wang XX, He LP. Sodium selenite may be not the optimal speciation as an effective therapy for arsenic-induced anxiety-/depression-like behavior. World J Psychiatry 2022; 12:1255-1257. [PMID: 36186509 PMCID: PMC9521533 DOI: 10.5498/wjp.v12.i9.1255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/20/2022] [Accepted: 08/26/2022] [Indexed: 02/05/2023] Open
Abstract
Major depressive disorder is a serious and prevalent neuropsychiatric disorder, affecting more than 350 million people worldwide. Here, sodium selenite (SS) was selected as the selenite supplement to improve the behavior in a mouse model of depression induced by As. SS may be not the optimal speciation for selenite supplementation and the source of the SS used in the study was not disclosed. There are many mouse models of depression and anxiety; however, in the current study, a classical mouse model of depression was not used. Thus, several questions still need to be further discussed. Taken together, the results indicate that SS may be not the optimal speciation as an effective therapy for As-induced anxiety-/depression-like behavior.
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Affiliation(s)
- Xiao-Hua Ren
- School of Medicine, Taizhou University, Taizhou 318000, Zhejiang Province, China
| | - Xiao-Xuan Wang
- School of Medicine, Taizhou University, Taizhou 318000, Zhejiang Province, China
| | - Lian-Ping He
- School of Medicine, Taizhou University, Taizhou 318000, Zhejiang Province, China
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Enhanced Cognition and Neurogenesis in miR-146b Deficient Mice. Cells 2022; 11:cells11132002. [PMID: 35805086 PMCID: PMC9265316 DOI: 10.3390/cells11132002] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/16/2022] [Accepted: 06/20/2022] [Indexed: 02/01/2023] Open
Abstract
The miR-146 family consists of two microRNAs (miRNAs), miR-146a and miR-146b, which are both known to suppress a variety of immune responses. Here in this study, we show that miR-146b is abundantly expressed in neuronal cells, while miR-146a is mainly expressed in microglia and astroglia of adult mice. Accordingly, miR-146b deficient (Mir146b-/-) mice exhibited anxiety-like behaviors and enhanced cognition. Characterization of cellular composition of Mir146b-/- mice using flow cytometry revealed an increased number of neurons and a decreased abundancy of astroglia in the hippocampus and frontal cortex, whereas microglia abundancy remained unchanged. Immunohistochemistry showed a higher density of neurons in the frontal cortex of Mir146b-/- mice, enhanced hippocampal neurogenesis as evidenced by an increased proliferation, and survival of newly generated cells with enhanced maturation into neuronal phenotype. No microglial activation or signs of neuroinflammation were observed in Mir146b-/- mice. Further analysis demonstrated that miR-146b deficiency is associated with elevated expression of glial cell line-derived neurotrophic factor (Gdnf) mRNA in the hippocampus, which might be at least in part responsible for the observed neuronal expansion and the behavioral phenotype. This hypothesis is partially supported by the positive correlation between performance of mice in the object recognition test and Gdnf mRNA expression in Mir146b-/- mice. Together, these results show the distinct function of miR-146b in controlling behaviors and provide new insights in understanding cell-specific function of miR-146b in the neuronal and astroglial organization of the mouse brain.
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