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Crisci I, Bonzano S, Nicolas Z, Dallorto E, Peretto P, Krezel W, De Marchis S. Tamoxifen exerts direct and microglia-mediated effects preventing neuroinflammatory changes in the adult mouse hippocampal neurogenic niche. Glia 2024. [PMID: 38515286 DOI: 10.1002/glia.24526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/27/2024] [Accepted: 03/05/2024] [Indexed: 03/23/2024]
Abstract
Tamoxifen-inducible systems are widely used in research to control Cre-mediated gene deletion in genetically modified animals. Beyond Cre activation, tamoxifen also exerts off-target effects, whose consequences are still poorly addressed. Here, we investigated the impact of tamoxifen on lipopolysaccharide (LPS)-induced neuroinflammatory responses, focusing on the neurogenic activity in the adult mouse dentate gyrus. We demonstrated that a four-day LPS treatment led to an increase in microglia, astrocytes and radial glial cells with concomitant reduction of newborn neurons. These effects were counteracted by a two-day tamoxifen pre-treatment. Through selective microglia depletion, we elucidated that both LPS and tamoxifen influenced astrogliogenesis via microglia mediated mechanisms, while the effects on neurogenesis persisted even in a microglia-depleted environment. Notably, changes in radial glial cells resulted from a combination of microglia-dependent and -independent mechanisms. Overall, our data reveal that tamoxifen treatment per se does not alter the balance between adult neurogenesis and astrogliogenesis but does modulate cellular responses to inflammatory stimuli exerting a protective role within the adult hippocampal neurogenic niche.
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Affiliation(s)
- Isabella Crisci
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
- NICO-Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Orbassano, Italy
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U1258, CNRS UMR 7104, Université de Strasbourg, Illkirch, France
| | - Sara Bonzano
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
- NICO-Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Orbassano, Italy
| | - Zinter Nicolas
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U1258, CNRS UMR 7104, Université de Strasbourg, Illkirch, France
| | - Eleonora Dallorto
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
- NICO-Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Orbassano, Italy
| | - Paolo Peretto
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
- NICO-Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Orbassano, Italy
| | - Wojciech Krezel
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U1258, CNRS UMR 7104, Université de Strasbourg, Illkirch, France
| | - Silvia De Marchis
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
- NICO-Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Orbassano, Italy
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Tyborowska A, Volman I, Niermann HCM, Dapprich AL, Smeekens S, Cillessen AHN, Toni I, Roelofs K. Developmental shift in testosterone influence on prefrontal emotion control. Dev Sci 2024; 27:e13415. [PMID: 37341037 DOI: 10.1111/desc.13415] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 05/03/2023] [Accepted: 05/09/2023] [Indexed: 06/22/2023]
Abstract
A paradox of testosterone effects is seen in adolescents versus adults in social emotional approach-avoidance behavior. During adolescence, high testosterone levels are associated with increased anterior prefrontal (aPFC) involvement in emotion control, whereas during adulthood this neuro-endocrine relation is reversed. Rodent work shows that, during puberty, testosterone transitions from a neuro-developmental to a social-sexual activating hormone. In this study, we explored whether this functional transition is also present in human adolescents and young adults. Using a prospective longitudinal design, we investigated the role of testosterone on neural control of social emotional behavior during the transitions from middle to late adolescence and into young adulthood. Seventy-one individuals (tested at ages 14, 17, and 20 years) performed an fMRI-adapted approach-avoidance (AA) task involving automatic and controlled actions in response to social emotional stimuli. In line with predictions from animal models, the effect of testosterone on aPFC engagement decreased between middle and late adolescence, and shifted into an activational role by young adulthood-impeding neural control of emotions. This change in testosterone function was accompanied by increased testosterone-modulated amygdala reactivity. These findings qualify the testosterone-dependent maturation of the prefrontal-amygdala circuit supporting emotion control during the transition from middle adolescence into young adulthood.
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Affiliation(s)
- Anna Tyborowska
- Behavioural Science Institute, Radboud University, Nijmegen, Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, Netherlands
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Inge Volman
- Department of Psychiatry, University of Oxford, Oxford, UK
- Wellcome Centre for Integrative Neuroimaging (WIN), Centre for Functional MRI of the Brain (FMRIB), Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Hannah C M Niermann
- Behavioural Science Institute, Radboud University, Nijmegen, Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, Netherlands
| | - Anna L Dapprich
- Behavioural Science Institute, Radboud University, Nijmegen, Netherlands
| | - Sanny Smeekens
- Behavioural Science Institute, Radboud University, Nijmegen, Netherlands
- Faculty of Psychology and Educational Sciences, Open University of the Netherlands, Heerlen, Netherlands
- Pro Persona, Nijmegen, Netherlands
| | | | - Ivan Toni
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, Netherlands
| | - Karin Roelofs
- Behavioural Science Institute, Radboud University, Nijmegen, Netherlands
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, Netherlands
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Garcia-Segura LM, Méndez P, Arevalo MA, Azcoitia I. Neuroestradiol and neuronal development: Not an exclusive male tale anymore. Front Neuroendocrinol 2023; 71:101102. [PMID: 37689249 DOI: 10.1016/j.yfrne.2023.101102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/04/2023] [Accepted: 09/06/2023] [Indexed: 09/11/2023]
Abstract
The brain synthesizes a variety of neurosteroids, including neuroestradiol. Inhibition of neuroestradiol synthesis results in alterations in basic neurodevelopmental processes, such as neurogenesis, neuroblast migration, neuritogenesis and synaptogenesis. Although the neurodevelopmental actions of neuroestradiol are exerted in both sexes, some of them are sex-specific, such as the well characterized effects of neuroestradiol derived from the metabolism of testicular testosterone during critical periods of male brain development. In addition, recent findings have shown sex-specific actions of neuroestradiol on neuroblast migration, neuritic growth and synaptogenesis in females. Among other factors, the epigenetic regulation exerted by X linked genes, such as Kdm6a/Utx, may determine sex-specific actions of neuroestradiol in the female brain. This review evidences the impact of neuroestradiol on brain formation in both sexes and highlights the interaction of neural steriodogenesis, hormones and sex chromosomes in sex-specific brain development.
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Affiliation(s)
- Luis M Garcia-Segura
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Avenida Doctor Arce 37, 28002 Madrid, Spain; Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto Nacional de Salud Carlos III, Madrid, Spain.
| | - Pablo Méndez
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Avenida Doctor Arce 37, 28002 Madrid, Spain
| | - M Angeles Arevalo
- Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Avenida Doctor Arce 37, 28002 Madrid, Spain; Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto Nacional de Salud Carlos III, Madrid, Spain.
| | - Iñigo Azcoitia
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto Nacional de Salud Carlos III, Madrid, Spain; Department of Cell Biology, Universidad Complutense de Madrid, C José Antonio Nováis 12, 28040 Madrid, Spain
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Guoynes CD, Marler CA. Acute intranasal oxytocin dose enhances social preference for parents over peers in male but not female peri-adolescent California mice (Peromyscus californicus). Gen Comp Endocrinol 2023; 335:114230. [PMID: 36781024 DOI: 10.1016/j.ygcen.2023.114230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/10/2022] [Accepted: 02/08/2023] [Indexed: 02/13/2023]
Abstract
Peri-adolescence is a critical developmental stage marked by profound changes in the valence of social interactions with parents and peers. We hypothesized that the oxytocin (OXT) and vasopressin (AVP) systems, known for influencing social behavior, would be involved in the maintenance and breaking of bonding behavior expressed by very early peri-adolescent males and females. In rodents, OXT is associated with mother-pup bonding and may promote social attachment to members of the natal territory. AVP, on the other hand, can act in contrasting ways to OXT and has been associated with aggression and territoriality. Specifically, we predicted that in peri-adolescent male and female juveniles of the biparental and territorial California mouse (Peromyscus californicus), a) OXT would increase the social preferences for the parents over unfamiliar age-matched peers (one male and one female), and b) AVP would break the parent-offspring bond and either increase time in the neutral chamber and/or approach to their unfamiliar and novel peers. We examined anxiety and exploratory behavior using an elevated plus maze and a novel object task as a control. Peri-adolescent mice were administered an acute intranasal (IN) treatment of 0.5 IU/kg IN AVP, 0.5 IU/kg IN OXT, or saline control; five minutes later, the behavioral tests were conducted. As predicted, we found that IN OXT enhanced social preference for parents; however, this was only in male and not female peri-adolescent mice. IN AVP did not influence social preference in either sex. These effects appear specific to social behavior and not anxiety, as neither IN OXT nor AVP influenced behavior during the elevated plus maze or novel object tasks. To our knowledge, this is the first evidence indicating that OXT may play a role in promoting peri-adolescent social preferences for parents and delaying weaning in males.
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Affiliation(s)
- Caleigh D Guoynes
- Department of Psychology, University of Wisconsin-Madison, Madison, WI, USA; Center for Neuroscience Research, Children's National Hospital, Washington, DC, USA.
| | - Catherine A Marler
- Department of Psychology, University of Wisconsin-Madison, Madison, WI, USA.
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Holladay SD. Environmental contaminants, endocrine disruption, and transgender: Can "born that way" in some cases be toxicologically real? Hum Exp Toxicol 2023; 42:9603271231203382. [PMID: 37751728 DOI: 10.1177/09603271231203382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
Gender is viewed by many as strictly binary based on a collection of body traits typical of a female or male phenotype, presence of a genotype that includes at least one copy of a Y chromosome, or ability to produce either egg or sperm cells. A growing non-binary view is that these descriptors, while compelling, may nonetheless fail to accurately capture an individual's true gender. The position of the American Psychological Association (APA) agrees with this view and is that transgender people are a defendable and real part of the human population. The considerable diversity of transgender expression then argues against any unitary or simple explanations, however, prenatal hormone levels, genetic influences, and early and later life experiences have been suggested as playing roles in development of transgender identities. The present review considers existing and emerging toxicologic data that may also support an environmental chemical contribution to some transgender identities, and suggest the possibility of a growing nonbinary brain gender continuum in the human population.
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Affiliation(s)
- Steven David Holladay
- Department of Biomedical Sciences, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
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Laviola G, Adriani W. Generation of single-sex litters in laboratory rodents: Caution for unintended outcomes and potential shortcomings. Neurosci Biobehav Rev 2022; 142:104866. [PMID: 36100113 DOI: 10.1016/j.neubiorev.2022.104866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 09/04/2022] [Accepted: 09/06/2022] [Indexed: 11/22/2022]
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Lund CI, Engdahl B, Rosseland LA, Stubhaug A, Grimnes G, Furberg AS, Steingrímsdóttir ÓA, Nielsen CS. The association between age at menarche and chronic pain outcomes in women: the Tromsø Study, 2007 to 2016. Pain 2022; 163:1790-1799. [PMID: 35239542 PMCID: PMC9393800 DOI: 10.1097/j.pain.0000000000002579] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 09/24/2021] [Accepted: 12/03/2021] [Indexed: 11/26/2022]
Abstract
ABSTRACT Sex differences in chronic pain are well established with documented predominance in women. This study assessed relationships between age at menarche and chronic pain, site-specific chronic pain, pain characteristics, and chronic widespread pain (CWP). We used data from the Tromsø Study conducted in 2007 to 2008 and 2015 to 2016 (Tromsø 6 and Tromsø 7 waves) including participants aged 30 to 99 years. The associations between age at menarche and chronic pain were examined in Tromsø 6 (n = 6449), Tromsø 7 (n = 5681), and the combination of Tromsø 6 and Tromsø 7 (n = 12,130). Tromsø 7 data were used further to examine the associations between age at menarche and site-specific chronic pain, 4 pain characteristics (pain duration, pain intensity, episode duration, and episode frequency), and CWP. All analyses were adjusted for body mass index, age, and economic status of the household in childhood. Lower age at menarche was associated with an increased risk of chronic pain in all 3 samples (risk ratio for each year delay in menarche 0.98, 95% CI [0.97 to 0.99] across samples). Risk differences were -0.014, CI 95% (-0.02 to -0.005) in Tromsø 6, -0.011, CI 95% (-0.02 to -0.02) in Tromsø 7, and -0.012, CI 95% (-0.02 to -0.01) in the combined sample. Age at menarche was significantly associated with chronic pain in the neck, abdomen, and both arms, and CWP. Of the 4 pain characteristics, pain duration was statistically significant. We conclude that early menarche is an independent risk factor for pain across a broad spectrum of pain outcomes.
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Affiliation(s)
- Charlotte I. Lund
- Division of Emergencies and Critical Care, Department of Research and Development, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Bo Engdahl
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Leiv A. Rosseland
- Division of Emergencies and Critical Care, Department of Research and Development, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Audun Stubhaug
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Division of Emergencies and Critical Care, Department of Pain Management and Research, Oslo University Hospital, Oslo, Norway
| | - Guri Grimnes
- Division of Clinical Medicine, University Hospital of North Norway, Tromsø, Norway
- Institute of Clinical Medicine, UiT—the Arctic University of Norway, Tromsø, Norway
| | - Anne-Sofie Furberg
- Faculty of Health Sciences and Social Care, Molde University College, Molde, Norway
- Department of Microbiology and Infection Control, University Hospital of North Norway, Tromsø, Norway
| | - Ólöf A. Steingrímsdóttir
- Division of Emergencies and Critical Care, Department of Research and Development, Oslo University Hospital, Oslo, Norway
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Christopher S. Nielsen
- Division of Mental and Physical Health, Norwegian Institute of Public Health, Oslo, Norway
- Division of Emergencies and Critical Care, Department of Pain Management and Research, Oslo University Hospital, Oslo, Norway
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Bonfanti L, Couillard-Després S. Neuronal and Brain Maturation. Int J Mol Sci 2022; 23:4400. [PMID: 35457217 DOI: 10.3390/ijms23084400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 04/14/2022] [Indexed: 12/04/2022] Open
Abstract
Can plasticity be considered as an extension of "immaturity" [...].
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