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Buhusi M, Brown CK, Buhusi CV. NrCAM-deficient mice exposed to chronic stress exhibit disrupted latent inhibition, a hallmark of schizophrenia. Front Behav Neurosci 2024; 18:1373556. [PMID: 38601326 PMCID: PMC11004452 DOI: 10.3389/fnbeh.2024.1373556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 03/12/2024] [Indexed: 04/12/2024] Open
Abstract
The neuronal cell adhesion molecule (NrCAM) is widely expressed and has important physiological functions in the nervous system across the lifespan, from axonal growth and guidance to spine and synaptic pruning, to organization of proteins at the nodes of Ranvier. NrCAM lies at the core of a functional protein network where multiple targets (including NrCAM itself) have been associated with schizophrenia. Here we investigated the effects of chronic unpredictable stress on latent inhibition, a measure of selective attention and learning which shows alterations in schizophrenia, in NrCAM knockout (KO) mice and their wild-type littermate controls (WT). Under baseline experimental conditions both NrCAM KO and WT mice expressed robust latent inhibition (p = 0.001). However, following chronic unpredictable stress, WT mice (p = 0.002), but not NrCAM KO mice (F < 1), expressed latent inhibition. Analyses of neuronal activation (c-Fos positive counts) in key brain regions relevant to latent inhibition indicated four types of effects: a single hit by genotype in IL cortex (p = 0.0001), a single hit by stress in Acb-shell (p = 0.031), a dual hit stress x genotype in mOFC (p = 0.008), vOFC (p = 0.020), and Acb-core (p = 0.032), and no effect in PrL cortex (p > 0.141). These results indicating a pattern of differential effects of genotype and stress support a complex stress × genotype interaction model and a role for NrCAM in stress-induced pathological behaviors relevant to schizophrenia and other psychiatric disorders.
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Affiliation(s)
- Mona Buhusi
- Interdisciplinary Program in Neuroscience, Department of Psychology, Utah State University, Logan, UT, United States
| | | | - Catalin V. Buhusi
- Interdisciplinary Program in Neuroscience, Department of Psychology, Utah State University, Logan, UT, United States
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Aas M, Andreassen OA, Gjerstad J, Rødevand L, Hjell G, Johansen IT, Lunding SH, Ormerod MBEG, Lagerverg TV, Steen NE, Djurovic S, Akkouh I. Expression of ANK3 moderates the association between childhood trauma and affective traits in severe mental disorders. Sci Rep 2023; 13:13845. [PMID: 37620394 PMCID: PMC10449847 DOI: 10.1038/s41598-023-40310-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 08/08/2023] [Indexed: 08/26/2023] Open
Abstract
Exposure to early life trauma increases the risk of psychopathology later in life. Here we investigated if ANK3 mRNA levels influence the relationship between childhood trauma experiences and clinical characteristics in mental disorders. A sample of 174 patients with bipolar disorder and 291 patients with schizophrenia spectrum disorder were included. Patients were diagnosed using the Structured Clinical Interview for DSM-IV, and childhood trauma was assessed using the childhood trauma questionnaire. Age at illness onset and number of psychotic and affective episodes were assessed from interview and medical records. Current depressive symptoms were measured using the calgary depression scale for schizophrenia and the inventory for depressive symptomatology. ANK3 expression was analyzed in whole blood using the Illumina HumanHT-12 v4 Expression BeadChip. Analyses were carried out with the Process adjusted for confounders. Within the total sample, patients with both high ANK3 expression and with the most severe childhood sexual abuse had more manic/hypomanic episodes and an earlier age at onset of the first episode. ANK3 mRNA levels also moderated the relationship between emotional neglect and manic/hypomanic episodes. Our results suggest that ANK3 expression levels moderate the association between specific types of childhood trauma and affective traits in mental disorders.
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Affiliation(s)
- Monica Aas
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
- Department of Behavioural Sciences, OsloMet - Oslo Metropolitan University, Oslo, Norway.
| | - Ole A Andreassen
- NORMENT Centre for Psychosis Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Johannes Gjerstad
- Department of Behavioural Sciences, OsloMet - Oslo Metropolitan University, Oslo, Norway
| | - Linn Rødevand
- NORMENT Centre for Psychosis Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Gabriela Hjell
- NORMENT Centre for Psychosis Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- Department of Psychiatry, Østfold Hospital, Grålum, Norway
| | - Ingrid Torp Johansen
- NORMENT Centre for Psychosis Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Synve Hoffart Lunding
- NORMENT Centre for Psychosis Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Monica B E G Ormerod
- NORMENT Centre for Psychosis Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Trine V Lagerverg
- NORMENT Centre for Psychosis Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Nils Eiel Steen
- NORMENT Centre for Psychosis Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Srdjan Djurovic
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Centre for Neurodevelopmental Disorders, University of Oslo, Oslo, Norway
- Department of Clinical Science, NORMENT, University of Bergen, Bergen, Norway
| | - Ibrahim Akkouh
- NORMENT Centre for Psychosis Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway
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Sannes AC, Christensen JO, Nielsen MB, Gjerstad J. Stress-induced headache in the general working population is moderated by the NRCAM rs2300043 genotype. Scand J Pain 2022; 23:326-332. [PMID: 36181733 DOI: 10.1515/sjpain-2022-0094] [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: 07/12/2022] [Accepted: 09/19/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Earlier findings suggest that social stress such as abusive supervision may promote pain. In the present study we examine the possible moderating role of genetic variability in the NRCAM gene in this process. METHODS The data were collected through a national survey drawn from the National Central Employee Register by Statistics Norway. A total of 1,205 individuals returned both the questionnaire and the saliva kit. Abusive supervision was scored by a 5-item version of the Tepper's 2,000 scale. Headache was measured on a four-category scale; 'not bothered,' 'a little bothered,' 'considerably bothered', 'seriously bothered'. Genotyping with regards to NRCAM rs2300043 was carried out using Taqman assay. Ordinal logistic regression was used to analyse the data. RESULTS For males exposed to abusive supervision, those carrying the rs2300043 CC genotype reported the highest levels of headache. Women showed a trend towards the opposite pattern. Women with the rs2300043 CC genotype seem to have a weaker effect of abusive supervision regarding reported headache than their male counterparts with the CC genotype when exposed to abusive supervision. CONCLUSIONS The present results indicated that the association between abusive supervision and headache in men with the NRCAM rs2300043 C allele was stronger than in other men. This suggests that the NRCAM genotype in men is important for the tolerance of social stress e.g., repeated negative acts from a superior. In contrast, a trend, though non-significant, towards the opposite pattern was observed in women. Our result suggests that the NRCAM genotype in men manifestly affects stress-induced pain such as headache.
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