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Zhang Y, Liu WQ, Hosseinpour Z, Pike GB, Cerchiaro G, Greenfield J, Yong VW, Metz LM. Feasibility study to assess lesion repair in relapsing-remitting multiple sclerosis: A randomized controlled pilot clinical trial of domperidone add-on treatment. Mult Scler Relat Disord 2024; 85:105525. [PMID: 38461731 DOI: 10.1016/j.msard.2024.105525] [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: 09/23/2023] [Revised: 02/01/2024] [Accepted: 02/26/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND Identification of therapies to promote repair in multiple sclerosis is challenged by the lack of an accepted trial model and associated outcome measures. The goal of this study was to determine the feasibility of a new trial model that enrolls disease modifying therapy (DMT)-treated relapsing-remitting multiple sclerosis (RRMS) participants who have enhancing lesions on clinically indicated brain MRI, and to explore estimates of lesion repair using MRI. METHODS This was a single site randomized controlled clinical trial. Recruitment took place between November 2015 and January 2019, with final follow-up in February 2019. DMT-treated RRMS participants aged 18-60 years with at least one gadolinium-enhancing lesion on clinically indicated brain MRI were included. Participants were randomized 2:1 to oral domperidone add-on 10-mg three times daily for 16 weeks or no add-on treatment (control). The primary outcomes were feasibility of the model pre-defined as recruitment of 24 participants within 36 months with a 79 % completion rate, and MRI outcomes of lesion repair measured at 16 and 32 weeks using texture analysis, magnetization transfer imaging (MTI), and diffusion tensor imaging (DTI). The impact of domperidone on serum prolactin at 6 and 16 weeks was also evaluated. RESULTS Of 237 RRMS participants screened, 17 (14 women) were randomized: 12 to domperidone add-on and 5 to control. All completed the study. Median (range) age was 38.9 (26.7-55.9) years; EDSS was 1.5 (1.0-3.5); and disease duration was 12.9 (2.9-23.3) years. Both groups showed improvement in MRI texture and diffusion fractional anisotropy (FA) at 32 weeks, and the domperidone group demonstrated additional recovery at 16 weeks in both texture and FA. There was no significant group difference in any MRI outcome. Of the 12 domperidone participants, 7 had ≥4x higher serum prolactin than normal. There were no serious adverse events. CONCLUSION The recruitment target was not met and therefore the trial model was not feasible despite a full completion rate. The imaging techniques performed well, especially MRI texture analysis, suggesting the sample size being sufficient for estimating lesion repair. The main challenge of this trial model may be recruiting gadolinium-enhancing lesions in DMT-treated RRMS participants. Prolactin is safe and may hold promise as a remyelination therapy. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02493049.
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Affiliation(s)
- Yunyan Zhang
- Department of Radiology, University of Calgary, AB, Canada; Department of Clinical Neurosciences, University of Calgary, AB, Canada; Hotchkiss Brain Insitute, University of Calgary, AB, Canada.
| | - Wei-Qiao Liu
- Department of Clinical Neurosciences, University of Calgary, AB, Canada; Hotchkiss Brain Insitute, University of Calgary, AB, Canada
| | - Zahra Hosseinpour
- Department of Biomedical Engineering, University of Calgary, AB, Canada
| | - G Bruce Pike
- Department of Radiology, University of Calgary, AB, Canada; Department of Clinical Neurosciences, University of Calgary, AB, Canada; Hotchkiss Brain Insitute, University of Calgary, AB, Canada
| | | | - Jamie Greenfield
- Department of Clinical Neurosciences, University of Calgary, AB, Canada
| | - V Wee Yong
- Department of Clinical Neurosciences, University of Calgary, AB, Canada; Hotchkiss Brain Insitute, University of Calgary, AB, Canada
| | - Luanne M Metz
- Department of Clinical Neurosciences, University of Calgary, AB, Canada; Hotchkiss Brain Insitute, University of Calgary, AB, Canada
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Zamani A, Thomas E, Wright DK. Sex biology in amyotrophic lateral sclerosis. Ageing Res Rev 2024; 95:102228. [PMID: 38354985 DOI: 10.1016/j.arr.2024.102228] [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: 08/31/2023] [Revised: 02/09/2024] [Accepted: 02/09/2024] [Indexed: 02/16/2024]
Abstract
Although sex differences in amyotrophic lateral sclerosis (ALS) have not been studied systematically, numerous clinical and preclinical studies have shown sex to be influential in disease prognosis. Moreover, with the development of advanced imaging tools, the difference between male and female brain in structure and function and their response to neurodegeneration are more definitive. As discussed in this review, ALS patients exhibit a sex bias pertaining to the features of the disease, and their clinical, pathological, (and pathophysiological) phenotypes. Several epidemiological studies have indicated that this sex disparity stems from various aetiologies, including sex-specific brain structure and neural functioning, genetic predisposition, age, gonadal hormones, susceptibility to traumatic brain injury (TBI)/head trauma and lifestyle factors.
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Affiliation(s)
- Akram Zamani
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC 3004, Australia.
| | - Emma Thomas
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC 3004, Australia
| | - David K Wright
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC 3004, Australia
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Faissner S, Bongert M, Trendelenburg P, Thiel S, Yamamura T, Hellwig K, Gold R. Eomesodermin-expressing CD4+ Th cells and association with pregnancy in multiple sclerosis. Ther Adv Neurol Disord 2024; 17:17562864241229321. [PMID: 38371384 PMCID: PMC10874138 DOI: 10.1177/17562864241229321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 01/09/2024] [Indexed: 02/20/2024] Open
Abstract
Background Pregnancy in patients with multiple sclerosis (MS) is accompanied by a decline of relapse activity with increased risk of relapses 3 months post-partum, for unknown reasons. Eomesodermin+ T-helper cells (Eomes+ Th cells) are known to mediate neuroinflammation and disease progression in MS and are induced by prolactin-secreting cells. Objectives Here, investigated immune cell alterations and the pathophysiological role of Eomes+ Th cells for disease activity during pregnancy and post-partum in MS. Methods We enrolled n = 81 pregnant patients with relapsing-remitting MS (RRMS), n = 27 post-partum RRMS and n = 26 female RRMS control patients under the umbrella of the German Multiple Sclerosis and Pregnancy Registry. Clinical data were collected and immune cell alterations were analysed using flow cytometry. Results While CD3+CD4+ Th cells were unaffected, CD3+CD8+ cytotoxic T-cells were elevated post-partum (p = 0.02) with reduced B-cell frequencies (p = 0.01) compared to non-pregnant RRMS patients. NK cells were elevated during first trimester (p = 0.02) compared to the third trimester. Frequencies of Eomes+ Th and Eomes+ Tc cells did not differ. There was no correlation of prolactin release and expression of Eomes+ Th cells. However, Eomes+ Th cells correlated with lower frequencies of regulatory T-cells during second (r = -0.42; p < 0.05) and third trimester (r = -0.37; p < 0.05). Moreover, Eomes+ Th cells correlated with frequencies of B-cells during third trimester (r = 0.54; p = 0.02). Frequencies of Eomes+ Th cells were not associated with the number of relapses before pregnancy, during pregnancy or post-partum. However, Eomes+ Th cells strongly correlated with disability post-partum as assessed using the EDSS (r = 0.52; p = 0.009). Discussion Pregnancy in MS is associated with robust immunological alterations. Eomes+ Th cells are capable of inducing immune cell alterations during the course of pregnancy, most evident during the second and third trimester as shown with a correlation of reduced Treg cells and a significant increase of B-cells. Importantly, Eomes+ Th cells correlate with disability post-partum. In summary, during late pregnancy in MS an inflammatory, cytotoxic and dysregulated immunological environment is primed gaining function post-delivery. This may be responsible for post-partum disability accumulation.
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Affiliation(s)
- Simon Faissner
- Department of Neurology, Ruhr-University Bochum, St. Josef-Hospital, Gudrunstr. 56, Bochum 44791, Germany
| | - Marielena Bongert
- Department of Neurology, Ruhr-University Bochum, St. Josef-Hospital, Bochum, Germany
| | - Paulina Trendelenburg
- Department of Neurology, Ruhr-University Bochum, St. Josef-Hospital, Bochum, Germany
| | - Sandra Thiel
- Department of Neurology, Ruhr-University Bochum, St. Josef-Hospital, Bochum, Germany
| | - Takashi Yamamura
- Department of Immunology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Japan
| | - Kerstin Hellwig
- Department of Neurology, Ruhr-University Bochum, St. Josef-Hospital, Bochum, Germany
| | - Ralf Gold
- Department of Neurology, Ruhr-University Bochum, St. Josef-Hospital, Bochum, Germany
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Kalakh S, Mouihate A. The Effects of Neuroactive Steroids on Myelin in Health and Disease. Med Princ Pract 2024; 33:198-214. [PMID: 38350432 PMCID: PMC11175611 DOI: 10.1159/000537794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 02/12/2024] [Indexed: 02/15/2024] Open
Abstract
Myelin plays a pivotal role in the efficient transmission of nerve impulses. Disruptions in myelin integrity are associated with numerous neurological disorders, including multiple sclerosis. In the central nervous system (CNS), myelin is formed by oligodendrocytes. Remyelination refers to the re-formation of the damaged myelin sheath by newly formed oligodendrocytes. Steroids have gained attention for their potential modulatory effects on myelin in both health and disease. Steroids are traditionally associated with endocrine functions, but their local synthesis within the nervous system has generated significant interest. The term "neuroactive steroids" refers to steroids that can act on cells of the nervous system. In the healthy state, neuroactive steroids promote myelin formation, maintenance, and repair by enhancing oligodendrocyte differentiation and maturation. In pathological conditions, such as demyelination injury, multiple neuroactive steroids have shown promise in promoting remyelination. Understanding the effects of neuroactive steroids on myelin could lead to novel therapeutic approaches for demyelinating diseases and neurodegenerative disorders. This review highlights the potential therapeutic significance of neuroactive steroids in myelin-related health and diseases. We review the synthesis of steroids by neurons and glial cells and discuss the roles of neuroactive steroids on myelin structure and function in health and disease. We emphasize the potential promyelinating effects of the varying levels of neuroactive steroids during different female physiological states such as the menstrual cycle, pregnancy, lactation, and postmenopause.
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Affiliation(s)
- Samah Kalakh
- Department of Physiology, College of Medicine, Kuwait University, Kuwait City, Kuwait
- School of Engineering and Computing, American International University, Kuwait City, Kuwait
| | - Abdeslam Mouihate
- Department of Physiology, College of Medicine, Kuwait University, Kuwait City, Kuwait
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Liu H, Zhang X, Chen W, Xu Y, Lin X, Lin A. The relationship between plasma prolactin levels and clinical manifestations with neuromyelitis optica spectrum disorders. Neurol Sci 2024; 45:699-707. [PMID: 37620730 DOI: 10.1007/s10072-023-07008-z] [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: 05/23/2023] [Accepted: 08/04/2023] [Indexed: 08/26/2023]
Abstract
INTRODUCTION Systemic prolactin levels have been found to increase in 19 patients diagnosed with neuromyelitis optica spectrum disorders (NMOSD). However, the relationship between plasma prolactin levels and clinical manifestations in NMOSD patients remains unclear. METHODS This cross-sectional study was conducted as part of a Registered Cohort Study of Inflammatory Demyelination Disease (NCT04386018). A total of 95 patients diagnosed with central nervous system demyelinating diseases and 43 healthy controls were recruited between May 2020 and February 2022 at the First Affiliated Hospital of Fujian Medical University. Plasma samples were collected from all participants and analyzed for prolactin levels using electrochemiluminescence immunoassay. The study aimed to investigate the correlation between plasma prolactin levels and clinical features in patients with central nervous system demyelinating diseases. RESULTS Plasma prolactin levels in NMOSD patients were significantly higher than those in multiple sclerosis/myelin oligodendrocyte glycoprotein antibody-associated diseases patients and controls (p<0.05, respectively), and were found to be correlated with disease activity, sensory abnormalities, thoracic spinal cord lesions, and MR lesion enhancement (p<0.05). A total of 16.28% of NMOSD patients exhibited macroprolactinemia. However, there was no correlation found between macroprolactin levels and disease activity (p>0.05). CONCLUSION Prolactin may play a role in the pro-inflammatory regulation mechanism of NMOSD.
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Affiliation(s)
- Hanchen Liu
- Fujian Key Laboratory of Molecular Neurology, Institute of Neuroscience, Fujian Medical University, Fuzhou, 350004, Fujian, China
| | - Xianxing Zhang
- Department of Neurology, the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, China
- Department of Neurology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350212, Fujian, China
| | - Wei Chen
- Fujian Key Laboratory of Molecular Neurology, Institute of Neuroscience, Fujian Medical University, Fuzhou, 350004, Fujian, China
- Department of Neurology, the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, China
- Department of Neurology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350212, Fujian, China
| | - Yiwen Xu
- Department of Neurology, the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, China
| | - Xiaoting Lin
- Department of Neurology, the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, China
| | - Aiyu Lin
- Fujian Key Laboratory of Molecular Neurology, Institute of Neuroscience, Fujian Medical University, Fuzhou, 350004, Fujian, China.
- Department of Neurology, the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, China.
- Department of Neurology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350212, Fujian, China.
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Abdelrahman A, Alvarez E. Advances in Multiple Sclerosis Neurotherapeutics, Neuroprotection, and Risk Mitigation Strategies. Neurol Clin 2024; 42:115-135. [PMID: 37980110 DOI: 10.1016/j.ncl.2023.08.002] [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] [Indexed: 11/20/2023]
Abstract
The treatment of patients with relapsing multiple sclerosis (MS) has advanced tremendously over the past few decades. More efficacious therapies have been approved, which can significantly reduce the inflammatory process of relapsing MS. Neuroprotection by controlling this pathophysiology is important given our current limitations to control progressive MS and induce neurorepair. Here, the authors discuss the current landscape of neurotherapeutics for relapsing MS focusing on newer disease-modifying treatments and their use. Risk mitigation of these medications can greatly improve their safety and improve their benefit-risk balance. The authors discuss treatment strategies for risk mitigation including treatment discontinuation and de-escalation.
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Affiliation(s)
- Ahmad Abdelrahman
- Department of Neurology, Rocky Mountain MS Center at the University of Colorado Anschutz Medical Center, Aurora, CO, USA
| | - Enrique Alvarez
- Department of Neurology, Rocky Mountain MS Center at the University of Colorado Anschutz Medical Center, University of Colorado, Aurora, CO, USA.
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7
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Zhang L, Swaab DF. Sex differences in bipolar disorder: The dorsolateral prefrontal cortex as an etiopathogenic region. Front Neuroendocrinol 2024; 72:101115. [PMID: 37993020 DOI: 10.1016/j.yfrne.2023.101115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 11/15/2023] [Accepted: 11/19/2023] [Indexed: 11/24/2023]
Abstract
Bipolar disorder (BD) is worldwide a prevalent mental illness and a leading risk factor for suicide. Over the past three decades, it has been discovered that sex differences exist throughout the entire panorama of BD, but the etiologic regions and mechanisms that generate such differences remain poorly characterized. Available evidence indicates that the dorsolateral prefrontal cortex (DLPFC), a critical region that controls higher-order cognitive processing and mood, exhibits biological disparities between male and female patients with psychiatric disorders, which are highly correlated with the co-occurrence of psychotic symptoms. This review addresses the sex differences in BD concerning epidemiology, cognitive impairments, clinical manifestations, neuroimaging, and laboratory abnormalities. It also provides strong evidence linking DLPFC to the etiopathogenesis of these sex differences. We emphasize the importance of identifying gene signatures using human brain transcriptomics, which can depict sexually different variations, explain sex-biased symptomatic features, and provide novel targets for sex-specific therapeutics.
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Affiliation(s)
- Lin Zhang
- Neuropsychiatric Disorders Lab, Neuroimmunology Group, Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands
| | - Dick F Swaab
- Neuropsychiatric Disorders Lab, Neuroimmunology Group, Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands.
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Mouihate A, Kalakh S. Breastfeeding promotes oligodendrocyte precursor cells division and myelination in the demyelinated corpus callosum. Brain Res 2023; 1821:148584. [PMID: 37717888 DOI: 10.1016/j.brainres.2023.148584] [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: 05/10/2023] [Revised: 09/12/2023] [Accepted: 09/14/2023] [Indexed: 09/19/2023]
Abstract
Demyelination alters the conduction of neuronal signals and hampers sensory-motor functions. Experimental and clinical evidence suggest that breastfeeding exerts a promyelinating impact on the maternal brain. The mechanism underlying this neuroprotective effect is not well-understood. In the present paper, we assessed the impact of rat lactation on lysolecithin-induced demyelination injury within the corpus callosum of lactating and non-lactating postpartum rats. We show that lactation enhanced the cell density of oligodendrocyte precursor cells (OPCs), but not that of activated microglia and astrocytes, within the demyelination lesion. Lactation also increased the expression of myelin markers involved in the initial stage of myelin recovery (Myelin-associated glycoprotein and 2',3'-cyclic nucleotide 3'-phosphodiesterase) and reduced the demyelination injury. Altogether, these data suggest that lactation creates a conducive promyelinating environment through increased OPCs cell division, enhanced expression of select myelin proteins, and reduced number of non-myelinated axons.
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Affiliation(s)
- Abdeslam Mouihate
- Department of Physiology, College of Medicine, Kuwait University, P.O. Box 24923, Safat 13110, Kuwait.
| | - Samah Kalakh
- Department of Physiology, College of Medicine, Kuwait University, P.O. Box 24923, Safat 13110, Kuwait
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Chaker Z, Segalada C, Kretz JA, Acar IE, Delgado AC, Crotet V, Moor AE, Doetsch F. Pregnancy-responsive pools of adult neural stem cells for transient neurogenesis in mothers. Science 2023; 382:958-963. [PMID: 37995223 DOI: 10.1126/science.abo5199] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 10/05/2023] [Indexed: 11/25/2023]
Abstract
Adult neural stem cells (NSCs) contribute to lifelong brain plasticity. In the adult mouse ventricular-subventricular zone, NSCs are heterogeneous and, depending on their location in the niche, give rise to different subtypes of olfactory bulb (OB) interneurons. Here, we show that multiple regionally distinct NSCs, including domains that are usually quiescent, are recruited on different gestation days during pregnancy. Synchronized activation of these adult NSC pools generates transient waves of short-lived OB interneurons, especially in layers with less neurogenesis under homeostasis. Using spatial transcriptomics, we identified molecular markers of pregnancy-associated interneurons and showed that some subsets are temporarily needed for own pup recognition. Thus, pregnancy triggers transient yet behaviorally relevant neurogenesis, highlighting the physiological relevance of adult stem cell heterogeneity.
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Affiliation(s)
- Zayna Chaker
- Biozentrum, University of Basel, 4056 Basel, Switzerland
| | | | - Jonas A Kretz
- Department of Biosystems Science and Engineering, ETH Zurich, 4058 Basel, Switzerland
| | - Ilhan E Acar
- Department of Biosystems Science and Engineering, ETH Zurich, 4058 Basel, Switzerland
| | - Ana C Delgado
- Biozentrum, University of Basel, 4056 Basel, Switzerland
| | - Valerie Crotet
- Biozentrum, University of Basel, 4056 Basel, Switzerland
| | - Andreas E Moor
- Department of Biosystems Science and Engineering, ETH Zurich, 4058 Basel, Switzerland
| | - Fiona Doetsch
- Biozentrum, University of Basel, 4056 Basel, Switzerland
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Servin-Barthet C, Martínez-García M, Pretus C, Paternina-Die M, Soler A, Khymenets O, Pozo ÓJ, Leuner B, Vilarroya O, Carmona S. The transition to motherhood: linking hormones, brain and behaviour. Nat Rev Neurosci 2023; 24:605-619. [PMID: 37612425 DOI: 10.1038/s41583-023-00733-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/28/2023] [Indexed: 08/25/2023]
Abstract
We are witnessing a stark increase in scientific interest in the neurobiological processes associated with pregnancy and maternity. Convergent evidence suggests that around the time of labour, first-time mothers experience a specific pattern of neuroanatomical changes that are associated with maternal behaviour. Here we provide an overview of the human neurobiological adaptations of motherhood, focusing on the interplay between pregnancy-related steroid and peptide hormones, and neuroplasticity in the brain. We discuss which brain plasticity mechanisms might underlie the structural changes detected by MRI, which hormonal systems are likely to contribute to such neuroanatomical changes and how these brain mechanisms may be linked to maternal behaviour. This Review offers an overarching framework that can serve as a roadmap for future investigations.
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Affiliation(s)
- Camila Servin-Barthet
- Unitat de Recerca en Neurociència Cognitiva, Departament de Psiquiatria i Medicina Legal, Universitat Autònoma de Barcelona, Barcelona, Spain
- Hospital del Mar Research Institute, Barcelona, Spain
| | - Magdalena Martínez-García
- Instituto de Investigación Sanitaria Gregorio Marañon, Madrid, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
| | - Clara Pretus
- Hospital del Mar Research Institute, Barcelona, Spain
- Departament de Psicobiologia i de Metodologia de els Ciències de la Salut, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Maria Paternina-Die
- Instituto de Investigación Sanitaria Gregorio Marañon, Madrid, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
| | - Anna Soler
- Unitat de Recerca en Neurociència Cognitiva, Departament de Psiquiatria i Medicina Legal, Universitat Autònoma de Barcelona, Barcelona, Spain
- Hospital del Mar Research Institute, Barcelona, Spain
| | | | - Óscar J Pozo
- Hospital del Mar Research Institute, Barcelona, Spain
| | - Benedetta Leuner
- Psychology Department, The Ohio State University, Columbus, OH, USA
| | - Oscar Vilarroya
- Unitat de Recerca en Neurociència Cognitiva, Departament de Psiquiatria i Medicina Legal, Universitat Autònoma de Barcelona, Barcelona, Spain.
- Hospital del Mar Research Institute, Barcelona, Spain.
| | - Susana Carmona
- Instituto de Investigación Sanitaria Gregorio Marañon, Madrid, Spain.
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain.
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Campagna MP, Lechner-Scott J, Maltby VE, Lea RA, Butzkueven H, Jokubaitis VG. Conceiving complexity: Biological mechanisms underpinning the lasting effect of pregnancy on multiple sclerosis outcomes. Autoimmun Rev 2023; 22:103388. [PMID: 37352902 DOI: 10.1016/j.autrev.2023.103388] [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: 05/31/2023] [Accepted: 06/18/2023] [Indexed: 06/25/2023]
Abstract
Multiple sclerosis (MS) is an autoimmune, demyelinating disease with the highest incidence in women of childbearing age. The effect of pregnancy on disease activity and progression is a primary concern for women with MS and their clinical teams. It is well established that inflammatory disease activity is naturally suppressed during pregnancy, followed by an increase postpartum. However, the long-term effect of pregnancy on disease progression is less understood. Having had a pregnancy before MS onset has been associated with an older age at first demyelinating event, an average delay of 3.4 years. After MS onset, there is conflicting evidence about the impact of pregnancy on long-term outcomes. The study with the longest follow-up to date showed that pregnancy was associated with a 0.36-point lower disability score after 10-years of disease in 1830 women. Understanding the biological mechanism by which pregnancy induces long-term beneficial effects on MS outcomes could provide mechanistic insights into the elusive determinants of secondary progression. Here, we review potential biological processes underlying this effect, including evidence that acute sex hormone exposure induces lasting changes to neurobiological and DNA methylation patterns, and how sustained methylation changes in immune cells can alter immune composition and function long-term.
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Affiliation(s)
- Maria Pia Campagna
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Victoria, Australia.
| | - Jeannette Lechner-Scott
- School of Medicine and Public Health, University of Newcastle, Hunter Medical Research Institute, Newcastle, New South Wales, Australia; Department of Neurology, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
| | - Vicki E Maltby
- School of Medicine and Public Health, University of Newcastle, Hunter Medical Research Institute, Newcastle, New South Wales, Australia; Department of Neurology, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
| | - Rodney A Lea
- School of Medicine and Public Health, University of Newcastle, Hunter Medical Research Institute, Newcastle, New South Wales, Australia; Centre for Genomics and Personalised Health, School of Biomedical Science, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - Helmut Butzkueven
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Victoria, Australia; Department of Neurology, Alfred Health, Melbourne, Victoria, Australia
| | - Vilija G Jokubaitis
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Victoria, Australia; Department of Neurology, Alfred Health, Melbourne, Victoria, Australia
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Faraji J, Metz GAS. Toward reframing brain-social dynamics: current assumptions and future challenges. Front Psychiatry 2023; 14:1211442. [PMID: 37484686 PMCID: PMC10359502 DOI: 10.3389/fpsyt.2023.1211442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 06/19/2023] [Indexed: 07/25/2023] Open
Abstract
Evolutionary analyses suggest that the human social brain and sociality appeared together. The two fundamental tools that accelerated the concurrent emergence of the social brain and sociality include learning and plasticity. The prevailing core idea is that the primate brain and the cortex in particular became reorganised over the course of evolution to facilitate dynamic adaptation to ongoing changes in physical and social environments. Encouraged by computational or survival demands or even by instinctual drives for living in social groups, the brain eventually learned how to learn from social experience via its massive plastic capacity. A fundamental framework for modeling these orchestrated dynamic responses is that social plasticity relies upon neuroplasticity. In the present article, we first provide a glimpse into the concepts of plasticity, experience, with emphasis on social experience. We then acknowledge and integrate the current theoretical concepts to highlight five key intertwined assumptions within social neuroscience that underlie empirical approaches for explaining the brain-social dynamics. We suggest that this epistemological view provides key insights into the ontology of current conceptual frameworks driving future research to successfully deal with new challenges and possible caveats in favour of the formulation of novel assumptions. In the light of contemporary societal challenges, such as global pandemics, natural disasters, violent conflict, and other human tragedies, discovering the mechanisms of social brain plasticity will provide new approaches to support adaptive brain plasticity and social resilience.
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Zhao X, Jacob C. Mechanisms of Demyelination and Remyelination Strategies for Multiple Sclerosis. Int J Mol Sci 2023; 24:ijms24076373. [PMID: 37047344 PMCID: PMC10093908 DOI: 10.3390/ijms24076373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/19/2023] [Accepted: 03/25/2023] [Indexed: 03/31/2023] Open
Abstract
All currently licensed medications for multiple sclerosis (MS) target the immune system. Albeit promising preclinical results demonstrated disease amelioration and remyelination enhancement via modulating oligodendrocyte lineage cells, most drug candidates showed only modest or no effects in human clinical trials. This might be due to the fact that remyelination is a sophistically orchestrated process that calls for the interplay between oligodendrocyte lineage cells, neurons, central nervous system (CNS) resident innate immune cells, and peripheral immune infiltrates and that this process may somewhat differ in humans and rodent models used in research. To ensure successful remyelination, the recruitment and activation/repression of each cell type should be regulated in a highly organized spatio–temporal manner. As a result, drug candidates targeting one single pathway or a single cell population have difficulty restoring the optimal microenvironment at lesion sites for remyelination. Therefore, when exploring new drug candidates for MS, it is instrumental to consider not only the effects on all CNS cell populations but also the optimal time of administration during disease progression. In this review, we describe the dysregulated mechanisms in each relevant cell type and the disruption of their coordination as causes of remyelination failure, providing an overview of the complex cell interplay in CNS lesion sites.
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14
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Datta A, Saha C, Godse P, Sharma M, Sarmah D, Bhattacharya P. Neuroendocrine regulation in stroke. Trends Endocrinol Metab 2023; 34:260-277. [PMID: 36922255 DOI: 10.1016/j.tem.2023.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 03/14/2023]
Abstract
The neuroendocrine system, a crosstalk between the central nervous system and endocrine glands, balances and controls hormone secretion and their functions. Neuroendocrine pathways and mechanisms often get dysregulated following stroke, leading to altered hormone secretion and aberrant receptor expression. Dysregulation of the hypothalamus-pituitary-thyroid (HPT) axis and hypothalamus-pituitary-adrenal (HPA) axis often led to severe stroke outcomes. Post-stroke complications such as cognitive impairment, depression, infection etc. are directly or indirectly influenced by the altered neuroendocrine activity that plays a crucial role in stroke vulnerability and susceptibility. Therefore, it is imperative to explore various neurohormonal inter-relationships in regulating stroke, its outcome, and prognosis. Here, we review the biology of different hormones associated with stroke and explore their regulation with a view towards prospective therapeutics.
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Affiliation(s)
- Aishika Datta
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat-382355, India
| | - Chandrima Saha
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat-382355, India
| | - Pratiksha Godse
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat-382355, India
| | - Muskaan Sharma
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat-382355, India
| | - Deepaneeta Sarmah
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat-382355, India
| | - Pallab Bhattacharya
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat-382355, India.
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15
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Orchard ER, Rutherford HJV, Holmes AJ, Jamadar SD. Matrescence: lifetime impact of motherhood on cognition and the brain. Trends Cogn Sci 2023; 27:302-316. [PMID: 36609018 PMCID: PMC9957969 DOI: 10.1016/j.tics.2022.12.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/30/2022] [Accepted: 12/05/2022] [Indexed: 01/06/2023]
Abstract
Profound environmental, hormonal, and neurobiological changes mark the transition to motherhood as a major biosocial life event. Despite the ubiquity of motherhood, the enduring impact of caregiving on cognition and the brain across the lifespan is not well characterized and represents a unique window of opportunity to investigate human neural and cognitive development. By integrating insights from the human and animal maternal brain literatures with theories of cognitive ageing, we outline a framework for understanding maternal neural and cognitive changes across the lifespan. We suggest that the increased cognitive load of motherhood provides an initial challenge during the peripartum period, requiring continuous adaptation; yet when these demands are sustained across the lifespan, they result in increased late-life cognitive reserve.
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Affiliation(s)
- Edwina R Orchard
- Yale Child Study Center, School of Medicine, Yale University, New Haven, CT, USA; Department of Psychology, Faculty of Arts and Sciences, Yale University, New Haven, CT, USA.
| | | | - Avram J Holmes
- Department of Psychology, Faculty of Arts and Sciences, Yale University, New Haven, CT, USA
| | - Sharna D Jamadar
- Turner Institute of Brain and Mental Health & Monash Biomedical Imaging, Monash University, Melbourne, Australia
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16
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Collorone S, Kodali S, Toosy AT. The protective role of breastfeeding in multiple sclerosis: Latest evidence and practical considerations. Front Neurol 2023; 13:1090133. [PMID: 36761920 PMCID: PMC9902945 DOI: 10.3389/fneur.2022.1090133] [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: 11/04/2022] [Accepted: 12/23/2022] [Indexed: 01/25/2023] Open
Abstract
The immunoprotective role of pregnancy in multiple sclerosis (MS) has been known for decades. Conversely, there has been rich debate on the topic of breastfeeding and disease activity in MS. In clinical practice, women are often offered to restart their disease-modifying drug (DMD) soon after delivery to maintain their relapse risk protection. Limited available information about peri-partum DMD safety can discourage women to choose breastfeeding, despite the World Health Organization's recommendation to breastfeed children for the first 6 months of life exclusively. New evidence is emerging about the protective role of exclusive breastfeeding on relapse rate. Research studies shed light on the hormonal and immunological mechanisms driving the risk of relapses during pregnancy and postpartum. Finally, case reports, real-world data, and clinical trials are increasing our knowledge of the safety of DMDs for the fetus and infant. While some DMDs must be avoided, others may be considered in highly active pregnant or lactating women with MS. This mini-review conveys recent evidence regarding the protective role of exclusive breastfeeding in MS and offers clinicians practical considerations for a patient-tailored approach.
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Affiliation(s)
- Sara Collorone
- NMR Research Unit, Department of Neuroinflammation, Queen Square MS Centre, Faculty of Brain Sciences, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom
| | - Srikirti Kodali
- NMR Research Unit, Department of Neuroinflammation, Queen Square MS Centre, Faculty of Brain Sciences, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom
| | - Ahmed T Toosy
- NMR Research Unit, Department of Neuroinflammation, Queen Square MS Centre, Faculty of Brain Sciences, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom
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17
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Luders E, Kurth F, Poromaa IS. The Neuroanatomy of Pregnancy and Postpartum. Neuroimage 2022; 263:119646. [PMID: 36155243 DOI: 10.1016/j.neuroimage.2022.119646] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/16/2022] [Accepted: 09/21/2022] [Indexed: 11/27/2022] Open
Abstract
Pregnancy and giving birth are exceptional states in a woman's life for many reasons. While the effects of pregnancy and childbirth on the female body are obvious, less is known about their impact on the female brain, especially in humans. The scientific literature is still sparse but we have identified 12 longitudinal neuroimaging studies conducted in women whose brains were scanned before pregnancy, during pregnancy, and/or after giving birth. This review summarizes and discusses the reported neuroanatomical changes during pregnancy, postpartum, and beyond. Some studies suggest that pregnancy is mainly associated with tissue decreases, and a few studies suggest that this tissue loss is mostly permanent. In contrast, the majority of studies seems to indicate that the postpartum period is accompanied by substantial tissue increases throughout the entire brain. Future research is clearly warranted to replicate and extend the current findings, while addressing various limitations and shortcomings of existing studies.
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Affiliation(s)
- Eileen Luders
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden; School of Psychology, University of Auckland, Auckland, New Zealand; Laboratory of Neuro Imaging, School of Medicine, University of Southern California, Los Angeles, USA.
| | - Florian Kurth
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
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18
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The Genomic Architecture of Pregnancy-Associated Plasticity in the Maternal Mouse Hippocampus. eNeuro 2022; 9:ENEURO.0117-22.2022. [PMID: 36239981 PMCID: PMC9522463 DOI: 10.1523/eneuro.0117-22.2022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 08/10/2022] [Accepted: 08/25/2022] [Indexed: 12/15/2022] Open
Abstract
Pregnancy is associated with extraordinary plasticity in the maternal brain. Studies in humans and other mammals suggest extensive structural and functional remodeling of the female brain during and after pregnancy. However, we understand remarkably little about the molecular underpinnings of this natural phenomenon. To gain insight into pregnancy-associated hippocampal plasticity, we performed single nucleus RNA sequencing (snRNA-seq) and snATAC-seq from the mouse hippocampus before, during, and after pregnancy. We identified cell type-specific transcriptional and epigenetic signatures associated with pregnancy and postpartum adaptation. In addition, we analyzed receptor-ligand interactions and transcription factor (TF) motifs that inform hippocampal cell type identity and provide evidence of pregnancy-associated adaption. In total, these data provide a unique resource of coupled transcriptional and epigenetic data across a dynamic time period in the mouse hippocampus and suggest opportunities for functional interrogation of hormone-mediated plasticity.
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19
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Diem L, Hammer H, Hoepner R, Pistor M, Remlinger J, Salmen A. Sex and gender differences in autoimmune demyelinating CNS disorders: Multiple sclerosis (MS), neuromyelitis optica spectrum disorder (NMOSD) and myelin-oligodendrocyte-glycoprotein antibody associated disorder (MOGAD). INTERNATIONAL REVIEW OF NEUROBIOLOGY 2022; 164:129-178. [PMID: 36038203 DOI: 10.1016/bs.irn.2022.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Multiple sclerosis (MS), Neuromyelitis optica spectrum disorder (NMOSD) and Myelin-Oligodendrocyte-Glycoprotein antibody associated disorder (MOGAD) are demyelinating disorders of the central nervous system (CNS) of autoimmune origin. Here, we summarize general considerations on sex-specific differences in the immunopathogenesis and hormonal influences as well as key clinical and epidemiological elements. Gender-specific issues are widely neglected starting with the lacking separation of sex as a biological variable and gender comprising the sociocultural components. As for other autoimmune diseases, female preponderance is common in MS and NMOSD. However, sex distribution in MOGAD seems equal. As in MS, immunotherapy in NMOSD and MOGAD is crucial to prevent further disease activity. Therefore, we assessed data on sex differences of the currently licensed disease-modifying treatments for efficacy and safety. This topic seems widely neglected with only fragmented information resulting from post-hoc analyses of clinical trials or real-world post-marketing studies afflicted with lacking power and/or inherent sources of bias. In summary, biological hypotheses of sex differences including genetic factors, the constitution of the immune system and hormonal influences are based upon human and preclinical data, especially for the paradigmatic disease of MS whereas specific data for NMOSD and MOGAD are widely lacking. Epidemiological and clinical differences between men and women are well described for MS and to some extent for NMOSD, yet, with remaining contradictory findings. MOGAD needs further detailed investigation. Sex-specific analyses of safety and efficacy of long-term immunotherapies need to be addressed in future studies designed and powered to answer the pressing questions and to optimize and individualize treatment.
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Affiliation(s)
- Lara Diem
- Department of Neurology, Inselspital, Bern University Hospital and University of Bern, Freiburgstrasse, Bern, Switzerland
| | - Helly Hammer
- Department of Neurology, Inselspital, Bern University Hospital and University of Bern, Freiburgstrasse, Bern, Switzerland
| | - Robert Hoepner
- Department of Neurology, Inselspital, Bern University Hospital and University of Bern, Freiburgstrasse, Bern, Switzerland
| | - Max Pistor
- Department of Neurology, Inselspital, Bern University Hospital and University of Bern, Freiburgstrasse, Bern, Switzerland
| | - Jana Remlinger
- Department of Neurology, Inselspital, Bern University Hospital and University of Bern, Freiburgstrasse, Bern, Switzerland; Department of Biomedical Research and Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Anke Salmen
- Department of Neurology, Inselspital, Bern University Hospital and University of Bern, Freiburgstrasse, Bern, Switzerland.
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20
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Paul DA, Rodrigue A, Contento N, Haber S, Hoang R, Rahmani R, Hirad A, Shafiq I, Williams Z, Vates GE. Prolactin at moderately increased levels confers a neuroprotective effect in non-secreting pituitary macroadenomas. PLoS One 2022; 17:e0271690. [PMID: 35921360 PMCID: PMC9348739 DOI: 10.1371/journal.pone.0271690] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 07/05/2022] [Indexed: 11/24/2022] Open
Abstract
Context Prolactin, a hormone synthesized by the anterior pituitary gland demonstrates promise as a neuroprotective agent, however, its role in humans and in vivo during injury is not fully understood. Objective To investigate whether elevated levels of prolactin attenuate injury to the retinal nerve fiber layer (RNFL) following compression of the optic chiasm in patients with a prolactin secreting pituitary macroadenoma (i.e., prolactinoma). Design setting and participants A retrospective cross-sectional study of all pituitary macroadenoma patients treated at a single institution between 2009 and 2019. Main outcome measure(s) Primary outcome measures included RNFL thickness, mean deviation, and prolactin levels for both prolactin-secreting and non-secreting pituitary macroadenoma patients. Results Sixty-six patients met inclusion criteria for this study (14 prolactin-secreting and 52 non-secreting macroadenoma patients). Of 52 non-secreting macroadenoma patients, 12 had moderate elevation of prolactin secondary to stalk effect. Patients with moderate elevation in prolactin demonstrated increased RNFL thickness compared to patients with normal prolactin levels (p < 0.01). Additionally, a significant positive relation between increasing levels of prolactin and RNFL thickness was identified in patients with moderate prolactin elevation (R = 0.51, p-value = 0.035). No significant difference was identified between prolactinoma patients and those with normal prolactin levels. Conclusions Moderately increased serum prolactin is associated with increased RNFL thickness when compared to controls. These associations are lost when serum prolactin is < 30 ng/ml or elevated in prolactinomas. This suggests a neuroprotective effect of prolactin at moderately increased levels in preserving retinal function during optic chiasm compression.
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Affiliation(s)
- David A. Paul
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Alejandra Rodrigue
- University of Rochester School of Medicine and Dentistry, Rochester, New York, United States of America
- Department of Ophthalmology, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Nicholas Contento
- University of Rochester School of Medicine and Dentistry, Rochester, New York, United States of America
| | - Sam Haber
- University of Rochester School of Medicine and Dentistry, Rochester, New York, United States of America
- Department of Brain and Cognitive Sciences, University of Rochester, Rochester, New York, United States of America
| | - Ricky Hoang
- University of Rochester School of Medicine and Dentistry, Rochester, New York, United States of America
| | - Redi Rahmani
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Adnan Hirad
- University of Rochester School of Medicine and Dentistry, Rochester, New York, United States of America
| | - Ismat Shafiq
- Division of Endocrinology and Metabolism, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Zoë Williams
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, United States of America
- Department of Ophthalmology, University of Rochester Medical Center, Rochester, New York, United States of America
- Department of Neurology, University of Rochester Medical Center, Rochester, New York, United States of America
| | - G. Edward Vates
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, New York, United States of America
- * E-mail:
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21
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Kiaie N, Gorabi AM, Loveless R, Teng Y, Jamialahmadi T, Sahebkar A. The regenerative potential of glial progenitor cells and reactive astrocytes in CNS injuries. Neurosci Biobehav Rev 2022; 140:104794. [PMID: 35902044 DOI: 10.1016/j.neubiorev.2022.104794] [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: 02/18/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 10/16/2022]
Abstract
Cell therapeutic approaches focusing on the regeneration of damaged tissue have been a popular topic among researchers in recent years. In particular, self-repair scarring from the central nervous system (CNS) can significantly complicate the treatment of an injured patient. In CNS regeneration schemes, either glial progenitor cells or reactive glial cells have key roles to play. In this review, the contribution and underlying mechanisms of these progenitor/reactive glial cells during CNS regeneration are discussed, as well as their role in CNS-related diseases.
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Affiliation(s)
- Nasim Kiaie
- Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Armita Mahdavi Gorabi
- Department of Tissue Engineering and Applied Cell Science, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reid Loveless
- Department of Oral Biology and Diagnostic Sciences, Dental College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Yong Teng
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA, USA
| | - Tannaz Jamialahmadi
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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22
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Costa-Brito AR, Gonçalves I, Santos CRA. The brain as a source and a target of prolactin in mammals. Neural Regen Res 2022; 17:1695-1702. [PMID: 35017416 PMCID: PMC8820687 DOI: 10.4103/1673-5374.332124] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Prolactin is a polypeptide hormone associated with an extensive variety of biological functions. Among the roles of prolactin in vertebrates, some were preserved throughout evolution. This is the case of its function in the brain, where prolactin receptors, are expressed in different structures of the central nervous system. In the brain, prolactin actions are principally associated with reproduction and parental behavior, and involves the modulation of adult neurogenesis, neuroprotection, and neuroplasticity, especially during pregnancy, thereby preparing the brain to parenthood. Prolactin is mainly produced by specialized cells in the anterior pituitary gland. However, during vertebrate evolution many other extrapituitary tissues do also produce prolactin, like the immune system, endothelial cells, reproductive structures and in several regions of the brain. This review summarizes the relevance of prolactin for brain function, the sources of prolactin in the central nervous system, as well as its local production and secretion. A highlight on the impact of prolactin in human neurological diseases is also provided.
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Affiliation(s)
- Ana R Costa-Brito
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, Portugal
| | - Isabel Gonçalves
- CICS-UBI - Health Sciences Research Centre; C4-UBI -Cloud Computing Competence Centre, Universidade da Beira Interior, Covilhã, Portugal
| | - Cecília R A Santos
- CICS-UBI - Health Sciences Research Centre; C4-UBI -Cloud Computing Competence Centre, Universidade da Beira Interior, Covilhã, Portugal
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23
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Lyso-Lipid-Induced Oligodendrocyte Maturation Underlies Restoration of Optic Nerve Function. eNeuro 2022; 9:ENEURO.0429-21.2022. [PMID: 35027445 PMCID: PMC8805197 DOI: 10.1523/eneuro.0429-21.2022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/17/2021] [Accepted: 01/04/2022] [Indexed: 11/25/2022] Open
Abstract
Protein hyperdeimination and deficiency of lyso-phospholipids (LPC 18:1) has been associated with the pathology of demyelinating disease in both humans and mice. We uncovered interesting biology of LPC 18:1, in which LPC 18:1 induced optic nerve function restoration through oligodendrocyte maturation and remyelination in mouse model systems. Our in vitro studies show LPC 18:1 protection against neuron-ectopic hyperdeimination and stimulation of oligodendrocyte maturation, while in vivo investigations recorded optic nerve function improvement following optic nerve injections of LPC 18:1, in contrast with LPC 18:0. Thus, just a change in a single bond renders a dramatic alternation in biological function. The incorporation of isobaric C13-histidine in newly synthesized myelin proteins and quantitative proteome shifts are consistent with remyelination underlying restoration in optic nerve function. These results suggest that exogenous LPC 18:1 may provide a therapeutic avenue for stemming vision loss in demyelinating diseases.
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24
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Martínez-García M, Cardenas SI, Pawluski J, Carmona S, Saxbe DE. Recent Neuroscience Advances in Human Parenting. ADVANCES IN NEUROBIOLOGY 2022; 27:239-267. [PMID: 36169818 DOI: 10.1007/978-3-030-97762-7_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The transition to parenthood entails brain adaptations to the demands of caring for a newborn. This chapter reviews recent neuroscience findings on human parenting, focusing on neuroimaging studies. First, we describe the brain circuits underlying human maternal behavior, which comprise ancient subcortical circuits and more sophisticated cortical regions. Then, we present the short-term and long-term functional and structural brain adaptations that characterize the transition to motherhood, discuss the long-term effects of parenthood on the brain, and propose several underlying neural mechanisms. We also review neuroimaging findings in biological fathers and alloparents (such as other relatives or adoptive parents), who engage in parenting without directly experiencing pregnancy or childbirth. Finally, we describe perinatal mental illnesses and discuss the neural responses associated with such disorders. To date, studies indicate that parenthood is a period of enhanced brain plasticity within brain areas critical for cognitive and social processing and that both parenting experience and gestational-related factors can prime such plasticity.
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Affiliation(s)
- Magdalena Martínez-García
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.
| | - Sofia I Cardenas
- Department of Psychology, University of Southern California, Los Angeles, CA, USA
| | - Jodi Pawluski
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), Rennes, France
| | - Susanna Carmona
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
| | - Darby E Saxbe
- Department of Psychology, University of Southern California, Los Angeles, CA, USA
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25
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Martínez-García M, Paternina-Die M, Desco M, Vilarroya O, Carmona S. Characterizing the Brain Structural Adaptations Across the Motherhood Transition. Front Glob Womens Health 2021; 2:742775. [PMID: 34816246 PMCID: PMC8593951 DOI: 10.3389/fgwh.2021.742775] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 09/10/2021] [Indexed: 12/23/2022] Open
Abstract
Women that become mothers face notable physiological adaptations during this life-period. Neuroimaging studies of the last decade have provided grounded evidence that women's brains structurally change across the transition into motherhood. The characterization of this brain remodeling is currently in its early years of research. The current article reviews this scientific field by focusing on our longitudinal (pre-to-post pregnancy) Magnetic Resonance Imaging (MRI) studies in first-time parents and other longitudinal and cross-sectional studies of parents. We present the questions that are currently being answered by the parental brain literature and point out those that have not yet been explored. We also highlight potential confounding variables that need to be considered when analyzing and interpreting brain changes observed during motherhood.
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Affiliation(s)
- Magdalena Martínez-García
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
| | - María Paternina-Die
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
| | - Manuel Desco
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain.,Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Madrid, Spain.,Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Oscar Vilarroya
- Department of Psychiatry and Legal Medicine, Autonomous University of Barcelona, Barcelona, Spain.,Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Susanna Carmona
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain
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26
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Voldsbekk I, Barth C, Maximov II, Kaufmann T, Beck D, Richard G, Moberget T, Westlye LT, de Lange AG. A history of previous childbirths is linked to women's white matter brain age in midlife and older age. Hum Brain Mapp 2021; 42:4372-4386. [PMID: 34118094 PMCID: PMC8356991 DOI: 10.1002/hbm.25553] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 05/12/2021] [Accepted: 05/27/2021] [Indexed: 02/06/2023] Open
Abstract
Maternal brain adaptations occur in response to pregnancy, but little is known about how parity impacts white matter and white matter ageing trajectories later in life. Utilising global and regional brain age prediction based on multi-shell diffusion-weighted imaging data, we investigated the association between previous childbirths and white matter brain age in 8,895 women in the UK Biobank cohort (age range = 54-81 years). The results showed that number of previous childbirths was negatively associated with white matter brain age, potentially indicating a protective effect of parity on white matter later in life. Both global white matter and grey matter brain age estimates showed unique contributions to the association with previous childbirths, suggesting partly independent processes. Corpus callosum contributed uniquely to the global white matter association with previous childbirths, and showed a stronger relationship relative to several other tracts. While our findings demonstrate a link between reproductive history and brain white matter characteristics later in life, longitudinal studies are required to establish causality and determine how parity may influence women's white matter trajectories across the lifespan.
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Affiliation(s)
- Irene Voldsbekk
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
- Department of Health and FunctioningWestern Norway University of Applied SciencesBergenNorway
| | - Claudia Barth
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
| | - Ivan I. Maximov
- Department of Health and FunctioningWestern Norway University of Applied SciencesBergenNorway
- Department of PsychologyUniversity of OsloOsloNorway
| | - Tobias Kaufmann
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
- Department of Psychiatry and PsychotherapyUniversity of TübingenTübingenGermany
| | - Dani Beck
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
- Department of PsychologyUniversity of OsloOsloNorway
- Sunnaas Rehabilitation Hospital HTOsloNorway
| | - Genevieve Richard
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
| | - Torgeir Moberget
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
- Department of PsychologyUniversity of OsloOsloNorway
| | - Lars T. Westlye
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
- Department of PsychologyUniversity of OsloOsloNorway
- KG Jebsen Centre for Neurodevelopmental DisordersUniversity of OsloOsloNorway
| | - Ann‐Marie G. de Lange
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
- LREN, Centre for Research in Neurosciences, Department of Clinical NeurosciencesLausanne University Hospital (CHUV) and University of LausanneLausanneSwitzerland
- Department of PsychiatryUniversity of OxfordOxfordUK
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Lu A, Guo P, Pan H, Tseng C, Sinha KM, Yang F, Scibetta A, Cui Y, Huard M, Zhong L, Ravuri S, Huard J. Enhancement of myogenic potential of muscle progenitor cells and muscle healing during pregnancy. FASEB J 2021; 35:e21378. [PMID: 33565161 DOI: 10.1096/fj.202001914r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 12/10/2020] [Accepted: 01/04/2021] [Indexed: 11/11/2022]
Abstract
The decline of muscle regenerative potential with age has been attributed to a diminished responsiveness of muscle progenitor cells (MPCs). Heterochronic parabiosis has been used as a model to study the effects of aging on stem cells and their niches. These studies have demonstrated that, by exposing old mice to a young systemic environment, aged progenitor cells can be rejuvenated. One interesting idea is that pregnancy represents a unique biological model of a naturally shared circulatory system between developing and mature organisms. To test this hypothesis, we evaluated the muscle regeneration potential of pregnant mice using a cardiotoxin (CTX) injury mouse model. Our results indicate that the pregnant mice demonstrate accelerated muscle healing compared to nonpregnant control mice following muscle injury based on improved muscle histology, superior muscle regeneration, and a reduction in inflammation and necrosis. Additionally, we found that MPCs isolated from pregnant mice display a significant improvement of myogenic differentiation capacity in vitro and muscle regeneration in vivo when compared to the MPCs from nonpregnant mice. Furthermore, MPCs from nonpregnant mice display enhanced myogenic capacity when cultured in the presence of serum obtained from pregnant mice. Our proteomics data from these studies provides potential therapeutic targets to enhance the myogenic potential of progenitor cells and muscle repair.
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Affiliation(s)
- Aiping Lu
- Steadman Philippon Research Institute, Vail, CO, USA
| | - Ping Guo
- Steadman Philippon Research Institute, Vail, CO, USA
| | - Haiying Pan
- Department of Orthopaedic Surgery, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Chieh Tseng
- Department of Orthopaedic Surgery, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Krishna M Sinha
- Department of Orthopaedic Surgery, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Fan Yang
- Department of Traumatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Alex Scibetta
- Steadman Philippon Research Institute, Vail, CO, USA
| | - Yan Cui
- Department of Orthopaedic Surgery, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | | | - Ling Zhong
- Department of Orthopaedic Surgery, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | | | - Johnny Huard
- Department of Orthopaedic Surgery, The University of Texas Health Science Center at Houston, Houston, TX, USA
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Paul DA, Strawderman E, Rodriguez A, Hoang R, Schneider CL, Haber S, Chernoff BL, Shafiq I, Williams ZR, Vates GE, Mahon BZ. Empty Sella Syndrome as a Window Into the Neuroprotective Effects of Prolactin. Front Med (Lausanne) 2021; 8:680602. [PMID: 34307410 PMCID: PMC8295462 DOI: 10.3389/fmed.2021.680602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 06/14/2021] [Indexed: 11/13/2022] Open
Abstract
Background: The goal of this study was to relate diffusion MR measures of white matter integrity of the retinofugal visual pathway with prolactin levels in a patient with downward herniation of the optic chiasm secondary to medical treatment of a prolactinoma. Methods: A 36-year-old woman with a prolactinoma presented with progressive bilateral visual field defects 9 years after initial diagnosis and medical treatment. She was diagnosed with empty-sella syndrome and instructed to stop cabergoline. Hormone testing was conducted in tandem with routine clinical evaluations over 1 year and the patient was followed with diffusion magnetic resonance imaging (dMRI), optical coherence tomography (OCT), and automated perimetry at three time points. Five healthy controls underwent a complementary battery of clinical and neuroimaging tests at a single time point. Results: Shortly after discontinuing cabergoline, diffusion metrics in the optic tracts were within the range of values observed in healthy controls. However, following a brief period where the patient resumed cabergoline (of her own volition), there was a decrease in serum prolactin with a corresponding decrease in visual ability and increase in radial diffusivity (p < 0.001). Those measures again returned to their baseline ranges after discontinuing cabergoline a second time. Conclusions: These results demonstrate the sensitivity of dMRI to detect rapid and functionally significant microstructural changes in white matter tracts secondary to alterations in serum prolactin levels. The inverse relations between prolactin and measures of white matter integrity and visual function are consistent with the hypothesis that prolactin can play a neuroprotective role in the injured nervous system.
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Affiliation(s)
- David A. Paul
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Emma Strawderman
- Department of Brain and Cognitive Sciences, University of Rochester, Rochester, NY, United States
| | - Alejandra Rodriguez
- University of Rochester School of Medicine and Dentistry, Rochester, NY, United States
| | - Ricky Hoang
- University of Rochester School of Medicine and Dentistry, Rochester, NY, United States
| | - Colleen L. Schneider
- Department of Brain and Cognitive Sciences, University of Rochester, Rochester, NY, United States
- University of Rochester School of Medicine and Dentistry, Rochester, NY, United States
- Department of Psychology, Carnegie Mellon University, Pittsburgh, PA, United States
| | - Sam Haber
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Benjamin L. Chernoff
- Department of Psychology, Carnegie Mellon University, Pittsburgh, PA, United States
| | - Ismat Shafiq
- Department of Endocrinology and Metabolism, University of Rochester Medical Center, Rochester, NY, United States
| | - Zoë R. Williams
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
- Department of Ophthalmology, University of Rochester Medical Center, Rochester, NY, United States
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, United States
| | - G. Edward Vates
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
| | - Bradford Z. Mahon
- Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, United States
- Department of Psychology, Carnegie Mellon University, Pittsburgh, PA, United States
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, United States
- Neuroscience Institute, Carnegie Mellon University, Pittsburgh, PA, United States
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29
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Rodriguez UA, Socorro M, Criscimanna A, Martins CP, Mohamed N, Hu J, Prasadan K, Gittes GK, Esni F. Conversion of α-Cells to β-Cells in the Postpartum Mouse Pancreas Involves Lgr5 Progeny. Diabetes 2021; 70:1508-1518. [PMID: 33906911 PMCID: PMC8336010 DOI: 10.2337/db20-1059] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 04/23/2021] [Indexed: 12/14/2022]
Abstract
In contrast to the skin and the gut, where somatic stem cells and their niche are well characterized, a definitive pancreatic multipotent cell population in the adult pancreas has yet to be revealed. Of particular interest is whether such cells may be endogenous in patients with diabetes, and if so, can they be used for therapeutic purposes? In the current study, we used two separate reporter lines to target Cre-recombinase expression to the Lgr5- or glucagon-expressing cells in the pancreas. We provide evidence for the existence of a population of cells within and in the proximity of the ducts that transiently express the stem-cell marker Lgr5 during late gestational stages. Careful timing of tamoxifen treatment in Lgr5EGFP-IRES-CreERT2 ;R26 Tomato mice allowed us to show that these Lgr5-expressing progenitor cells can differentiate into α-cells during pregnancy. Furthermore, we report on a spontaneous lineage conversion of α- to β-cells specifically after parturition. The contribution of Lgr5 progeny to the β-cell compartment through an α-cell intermediate phase early after pregnancy appears to be part of a novel mechanism that would counterbalance against excessive β-cell mass reduction during β-cell involution.
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Affiliation(s)
- Uylissa A Rodriguez
- Division of Pediatric General and Thoracic Surgery, Department of Surgery, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - Mairobys Socorro
- Division of Pediatric General and Thoracic Surgery, Department of Surgery, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA
- Department of Oral Biology, University of Pittsburgh School of Dental Medicine, Pittsburgh, PA
| | - Angela Criscimanna
- Division of Pediatric General and Thoracic Surgery, Department of Surgery, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - Christina P Martins
- Division of Pediatric General and Thoracic Surgery, Department of Surgery, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - Nada Mohamed
- Division of Pediatric General and Thoracic Surgery, Department of Surgery, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - Jing Hu
- Division of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Pittsburgh, Pittsburgh, PA
| | - Krishna Prasadan
- Division of Pediatric General and Thoracic Surgery, Department of Surgery, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - George K Gittes
- Division of Pediatric General and Thoracic Surgery, Department of Surgery, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA
| | - Farzad Esni
- Division of Pediatric General and Thoracic Surgery, Department of Surgery, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA
- Department of Developmental Biology, University of Pittsburgh, Pittsburgh, PA
- UPMC Hillman Cancer Center, Pittsburgh, PA
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30
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Sutiwisesak R, Burns TC, Rodriguez M, Warrington AE. Remyelination therapies for multiple sclerosis: optimizing translation from animal models into clinical trials. Expert Opin Investig Drugs 2021; 30:857-876. [PMID: 34126015 DOI: 10.1080/13543784.2021.1942840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Introduction: Multiple sclerosis (MS) is the most common inflammatory disease of the central nervous system (CNS). Demyelination, the main pathology in MS, contributes to clinical symptoms and long-term neurological deficits if left untreated. Remyelination, the natural repair of damaged myelin by cells of the oligodendrocyte lineage, occurs in MS, but eventually fails in most patients as they age. Encouraging timely remyelination can restore axon conduction and minimize deficits.Areas covered: We discuss and correlate human MS pathology with animal models, propose methods to deplete resident oligodendrocyte progenitor cells (OPCs) to determine whether mature oligodendrocytes support remyelination, and review remyelinating agents, mechanisms of action, and available clinical trial data.Expert opinion: The heterogeneity of human MS may limit successful translation of many candidate remyelinating agents; some patients lack the biological targets necessary to leverage current approaches. Development of therapeutics for remyelination has concentrated almost exclusively on mobilization of innate OPCs. However, mature oligodendrocytes appear an important contributor to remyelination in humans. Limiting the contribution of OPC mediated repair in models of MS would allow the evaluation of remyelination-promoting agents on mature oligodendrocytes. Among remyelinating reagents reviewed, only rHIgM22 targets both OPCs and mature oligodendrocytes.
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Affiliation(s)
- Rujapope Sutiwisesak
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Terry C Burns
- Departments of Neurology and Neurologic Surgery Mayo Clinic, Rochester, Minnesota, USA
| | - Moses Rodriguez
- Departments of Neurology and Neurologic Surgery Mayo Clinic, Rochester, Minnesota, USA
| | - Arthur E Warrington
- Departments of Neurology and Neurologic Surgery Mayo Clinic, Rochester, Minnesota, USA
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31
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Morris AD, Kucenas S. A Novel Lysolecithin Model for Visualizing Damage in vivo in the Larval Zebrafish Spinal Cord. Front Cell Dev Biol 2021; 9:654583. [PMID: 34095120 PMCID: PMC8173112 DOI: 10.3389/fcell.2021.654583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 04/15/2021] [Indexed: 12/05/2022] Open
Abstract
Background: Lysolecithin is commonly used to induce demyelinating lesions in the spinal cord and corpus callosum of mammalian models. Although these models and clinical patient samples are used to study neurodegenerative diseases, such as multiple sclerosis (MS), they do not allow for direct visualization of disease-related damage in vivo. To overcome this limitation, we created and characterized a focal lysolecithin injection model in zebrafish that allows us to investigate the temporal dynamics underlying lysolecithin-induced damage in vivo. Results: We injected lysolecithin into 4-6 days post-fertilization (dpf) zebrafish larval spinal cords and, coupled with in vivo, time-lapse imaging, observed hallmarks consistent with mammalian models of lysolecithin-induced demyelination, including myelinating glial cell loss, myelin perturbations, axonal sparing, and debris clearance. Conclusion: We have developed and characterized a lysolecithin injection model in zebrafish that allows us to investigate myelin damage in a living, vertebrate organism. This model may be a useful pre-clinical screening tool for investigating the safety and efficacy of novel therapeutic compounds that reduce damage and/or promote repair in neurodegenerative disorders, such as MS.
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Affiliation(s)
- Angela D. Morris
- Neuroscience Graduate Program, University of Virginia, Charlottesville, VA, United States
| | - Sarah Kucenas
- Neuroscience Graduate Program, University of Virginia, Charlottesville, VA, United States
- Department of Biology, University of Virginia, Charlottesville, VA, United States
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32
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Costa-Brito AR, Quintela T, Gonçalves I, Duarte AC, Costa AR, Arosa FA, Cavaco JE, Lemos MC, Santos CRA. The Choroid Plexus Is an Alternative Source of Prolactin to the Rat Brain. Mol Neurobiol 2021; 58:1846-1858. [PMID: 33409838 DOI: 10.1007/s12035-020-02267-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 12/16/2020] [Indexed: 10/22/2022]
Abstract
Among the more than 300 functions attributed to prolactin (PRL), this hormone has been associated with the induction of neurogenesis and differentiation of olfactory neurons especially during pregnancy, which are essential for maternal behavior. Despite the original hypothesis that PRL enters the central nervous system through a process mediated by PRL receptors (PRLR) at the choroid plexus (CP), recent data suggested that PRL transport into the brain is independent of its receptors. Based on transcriptomic data suggesting that PRL could be expressed in the CP, this work aimed to confirm PRL synthesis and secretion by CP epithelial cells (CPEC). The secretion of PRL and the distribution of PRLR in CPEC were further characterized using an in vitro model of the rat blood-cerebrospinal fluid barrier. RT-PCR analysis of PRL transcripts showed its presence in pregnant rat CP, in CPEC, and in the rat immortalized CP cell line, Z310. These observations were reinforced by immunocytochemistry staining of PRL in CPEC and Z310 cell cytoplasm. A 63-kDa immunoreactive PRL protein was detected by Western blot in CP protein extracts as well as in culture medium incubated with rat pituitary and samples of rat cerebrospinal fluid and serum. Positive immunocytochemistry staining of PRLR was present throughout the CPEC cytoplasm and in the apical and basal membrane of these cells. Altogether, our evidences suggest that CP is an alternative source of PRL to the brain, which might impact neurogenesis of olfactory neurons at the subventricular zone, given its proximity to the CP.
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Affiliation(s)
- Ana R Costa-Brito
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Telma Quintela
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Isabel Gonçalves
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Ana C Duarte
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Ana R Costa
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Fernando A Arosa
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - José E Cavaco
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Manuel C Lemos
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
| | - Cecília R A Santos
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal.
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33
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Koch MW, Sage K, Kaur S, Kim J, Cerchiaro G, Yong VW, Cutter GR, Metz LM. Repurposing Domperidone in Secondary Progressive Multiple Sclerosis: A Simon 2-Stage Phase 2 Futility Trial. Neurology 2021; 96:e2313-e2322. [PMID: 34038379 DOI: 10.1212/wnl.0000000000011863] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 02/02/2021] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To assess whether treatment with the generic drug domperidone can reduce the progression of disability in secondary progressive multiple sclerosis (SPMS), we conducted a phase 2 futility trial following the Simon 2-stage design. METHODS We enrolled patients in an open-label, Simon 2-stage, single-center, phase 2, single-arm futility trial at the Calgary Multiple Sclerosis Clinic if they met the following criteria: age of 18 to 60 years, SPMS, screening Expanded Disability Status Scale score of 4.0 to 6.5, and screening timed 25-ft walk (T25FW) of ≥9 seconds. Patients received domperidone 10 mg 4 times daily for 1 year. The primary outcome was worsening of disability, defined as worsening of the T25FW performance by ≥20% at 12 months compared to baseline. This trial is registered with ClinicalTrials.gov (NCT02308137). RESULTS Between February 13, 2015, and January 3, 2020, 110 patients were screened, 81 received treatment, and 64 completed follow-up, of whom 62 were analyzed. The study did not meet its primary endpoint: 22 of 62 (35%) patients experienced significant worsening of disability, which is close to the expected proportion of 40% and above the predefined futility threshold. Patients with higher prolactin levels during the study had a significantly lower risk of disability progression, which may warrant further investigation. Domperidone treatment was reasonably well tolerated, but adverse events occurred in 84% and serious adverse events in 15% of patients. CONCLUSIONS Domperidone treatment could not reject futility in reducing disability progression in SPMS. The Simon 2-stage trial model may be a useful model for phase 2 studies in progressive MS. TRIAL REGISTRATION INFORMATION ClinicalTrials.gov Identifier: NCT02308137. CLASSIFICATION OF EVIDENCE This study provides Class III evidence that in individuals with SPMS participating in a futility trial, domperidone treatment could not reject futility in reducing disability progression at 12 months.
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Affiliation(s)
- Marcus W Koch
- From the Departments of Clinical Neurosciences (M.W.K., K.S., S.K., J.K., G.C., V.W.Y., L.M.M.) and Community Health Sciences (M.W.K.), University of Calgary, Alberta, Canada; and Department of Biostatistics (G.R.C.), University of Alabama at Birmingham.
| | - Kayla Sage
- From the Departments of Clinical Neurosciences (M.W.K., K.S., S.K., J.K., G.C., V.W.Y., L.M.M.) and Community Health Sciences (M.W.K.), University of Calgary, Alberta, Canada; and Department of Biostatistics (G.R.C.), University of Alabama at Birmingham
| | - Sharanjit Kaur
- From the Departments of Clinical Neurosciences (M.W.K., K.S., S.K., J.K., G.C., V.W.Y., L.M.M.) and Community Health Sciences (M.W.K.), University of Calgary, Alberta, Canada; and Department of Biostatistics (G.R.C.), University of Alabama at Birmingham
| | - Janet Kim
- From the Departments of Clinical Neurosciences (M.W.K., K.S., S.K., J.K., G.C., V.W.Y., L.M.M.) and Community Health Sciences (M.W.K.), University of Calgary, Alberta, Canada; and Department of Biostatistics (G.R.C.), University of Alabama at Birmingham
| | - Graziela Cerchiaro
- From the Departments of Clinical Neurosciences (M.W.K., K.S., S.K., J.K., G.C., V.W.Y., L.M.M.) and Community Health Sciences (M.W.K.), University of Calgary, Alberta, Canada; and Department of Biostatistics (G.R.C.), University of Alabama at Birmingham
| | - V Wee Yong
- From the Departments of Clinical Neurosciences (M.W.K., K.S., S.K., J.K., G.C., V.W.Y., L.M.M.) and Community Health Sciences (M.W.K.), University of Calgary, Alberta, Canada; and Department of Biostatistics (G.R.C.), University of Alabama at Birmingham
| | - Gary R Cutter
- From the Departments of Clinical Neurosciences (M.W.K., K.S., S.K., J.K., G.C., V.W.Y., L.M.M.) and Community Health Sciences (M.W.K.), University of Calgary, Alberta, Canada; and Department of Biostatistics (G.R.C.), University of Alabama at Birmingham
| | - Luanne M Metz
- From the Departments of Clinical Neurosciences (M.W.K., K.S., S.K., J.K., G.C., V.W.Y., L.M.M.) and Community Health Sciences (M.W.K.), University of Calgary, Alberta, Canada; and Department of Biostatistics (G.R.C.), University of Alabama at Birmingham
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34
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Breton JM, Long KLP, Barraza MK, Perloff OS, Kaufer D. Hormonal Regulation of Oligodendrogenesis II: Implications for Myelin Repair. Biomolecules 2021; 11:290. [PMID: 33669242 PMCID: PMC7919830 DOI: 10.3390/biom11020290] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/10/2021] [Accepted: 02/13/2021] [Indexed: 02/07/2023] Open
Abstract
Alterations in myelin, the protective and insulating sheath surrounding axons, affect brain function, as is evident in demyelinating diseases where the loss of myelin leads to cognitive and motor dysfunction. Recent evidence suggests that changes in myelination, including both hyper- and hypo-myelination, may also play a role in numerous neurological and psychiatric diseases. Protecting myelin and promoting remyelination is thus crucial for a wide range of disorders. Oligodendrocytes (OLs) are the cells that generate myelin, and oligodendrogenesis, the creation of new OLs, continues throughout life and is necessary for myelin plasticity and remyelination. Understanding the regulation of oligodendrogenesis and myelin plasticity within disease contexts is, therefore, critical for the development of novel therapeutic targets. In our companion manuscript, we review literature demonstrating that multiple hormone classes are involved in the regulation of oligodendrogenesis under physiological conditions. The majority of hormones enhance oligodendrogenesis, increasing oligodendrocyte precursor cell differentiation and inducing maturation and myelin production in OLs. Thus, hormonal treatments present a promising route to promote remyelination. Here, we review the literature on hormonal regulation of oligodendrogenesis within the context of disorders. We focus on steroid hormones, including glucocorticoids and sex hormones, peptide hormones such as insulin-like growth factor 1, and thyroid hormones. For each hormone, we describe whether they aid in OL survival, differentiation, or remyelination, and we discuss their mechanisms of action, if known. Several of these hormones have yielded promising results in both animal models and in human conditions; however, a better understanding of hormonal effects, interactions, and their mechanisms will ultimately lead to more targeted therapeutics for myelin repair.
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Affiliation(s)
- Jocelyn M Breton
- Helen Wills Neuroscience Institute, University of California Berkeley, Berkeley, CA 94720, USA
| | - Kimberly L P Long
- Helen Wills Neuroscience Institute, University of California Berkeley, Berkeley, CA 94720, USA
| | - Matthew K Barraza
- Molecular and Cellular Biology, University of California Berkeley, Berkeley, CA 94720, USA
| | - Olga S Perloff
- Memory and Aging Center, Department of Neurology, University of California San Francisco, San Francisco, CA 94143, USA
| | - Daniela Kaufer
- Helen Wills Neuroscience Institute, University of California Berkeley, Berkeley, CA 94720, USA
- Integrative Biology, University of California Berkeley, Berkeley, CA 94720, USA
- Canadian Institute for Advanced Research, Toronto, ON M5G1M1, Canada
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35
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Long KLP, Breton JM, Barraza MK, Perloff OS, Kaufer D. Hormonal Regulation of Oligodendrogenesis I: Effects across the Lifespan. Biomolecules 2021; 11:biom11020283. [PMID: 33672939 PMCID: PMC7918364 DOI: 10.3390/biom11020283] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/04/2021] [Accepted: 02/06/2021] [Indexed: 02/07/2023] Open
Abstract
The brain’s capacity to respond to changing environments via hormonal signaling is critical to fine-tuned function. An emerging body of literature highlights a role for myelin plasticity as a prominent type of experience-dependent plasticity in the adult brain. Myelin plasticity is driven by oligodendrocytes (OLs) and their precursor cells (OPCs). OPC differentiation regulates the trajectory of myelin production throughout development, and importantly, OPCs maintain the ability to proliferate and generate new OLs throughout adulthood. The process of oligodendrogenesis, the creation of new OLs, can be dramatically influenced during early development and in adulthood by internal and environmental conditions such as hormones. Here, we review the current literature describing hormonal regulation of oligodendrogenesis within physiological conditions, focusing on several classes of hormones: steroid, peptide, and thyroid hormones. We discuss hormonal regulation at each stage of oligodendrogenesis and describe mechanisms of action, where known. Overall, the majority of hormones enhance oligodendrogenesis, increasing OPC differentiation and inducing maturation and myelin production in OLs. The mechanisms underlying these processes vary for each hormone but may ultimately converge upon common signaling pathways, mediated by specific receptors expressed across the OL lineage. However, not all of the mechanisms have been fully elucidated, and here, we note the remaining gaps in the literature, including the complex interactions between hormonal systems and with the immune system. In the companion manuscript in this issue, we discuss the implications of hormonal regulation of oligodendrogenesis for neurological and psychiatric disorders characterized by white matter loss. Ultimately, a better understanding of the fundamental mechanisms of hormonal regulation of oligodendrogenesis across the entire lifespan, especially in vivo, will progress both basic and translational research.
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Affiliation(s)
- Kimberly L. P. Long
- Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720, USA; (J.M.B.); (D.K.)
- Correspondence:
| | - Jocelyn M. Breton
- Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720, USA; (J.M.B.); (D.K.)
| | - Matthew K. Barraza
- Department of Molecular and Cellular Biology, University of California, Berkeley, CA 94720, USA;
| | - Olga S. Perloff
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, CA 94143, USA;
| | - Daniela Kaufer
- Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720, USA; (J.M.B.); (D.K.)
- Department of Integrative Biology, University of California, Berkeley, CA 94720, USA
- Canadian Institute for Advanced Research, Toronto, ON M5G 1M1, Canada
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Anagnostouli M, Markoglou N, Chrousos G. Psycho-neuro-endocrino-immunologic issues in multiple sclerosis: a critical review of clinical and therapeutic implications. Hormones (Athens) 2020; 19:485-496. [PMID: 32488815 DOI: 10.1007/s42000-020-00197-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 04/06/2020] [Indexed: 12/16/2022]
Abstract
Multiple sclerosis (MS) is a multifactorial, chronic, immune-mediated, and neurodegenerative disease, having a well-known hypothalamic-pituitary-adrenal (HPA) axis dysfunction. Several hormones have a great impact in the immune dysregulation, psychology, and cognitive status of patients with MS, as also in the fertility and response to treatment. In this comprehensive review, as an introduction, we mention basic data concerning MS: epidemiology, genetics, immunogenetics, epigenetics, pathophysiology, and neuroimmunology. Hormonal components of the disease cascade, mainly glucocorticoids (stress-related hormone), estrogens, prolactin and dehydroepiandrosterone (sex-related hormones), melatonin, and vitamin D, are discussed, aiming at focusing on core data regarding the impact of these hormones in MS pathophysiology, severity of the disease, correlation with comorbid mental disorders, and fertility. A great focus is given in the pre- and post-pregnancy period of MS patients, in the context of the disease-modifying treatments (DMTs) and HPA status, having in mind that there are only very limited knowledge and few papers on this specific life period of these women, having MS. All this data are presented in the main text and also in the workable tables, for the first time, suggesting targeted topics that need to be addressed in the near future.
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Affiliation(s)
- Maria Anagnostouli
- Demyelinating Diseases Clinic, 1st Department of Neurology, Medical School, National and Kapodistrian University of Athens, Aeginition Hospital, Vasilissis Sofias 72-74, 115 28, Athens, Greece.
- Immunogenetics Laboratory, 1st Department of Neurology, Medical School, National and Kapodistrian University of Athens, Aeginition Hospital, Vasilissis Sofias 72-74, 115 28, Athens, Greece.
| | - Nikolaos Markoglou
- Immunogenetics Laboratory, 1st Department of Neurology, Medical School, National and Kapodistrian University of Athens, Aeginition Hospital, Vasilissis Sofias 72-74, 115 28, Athens, Greece
| | - George Chrousos
- University Research Institute of Maternal and Child Health and Precision Medicine, Medical School, National and Kapodistrian University of Athens, Athens, Greece
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Gilli F, DiSano KD, Pachner AR. SeXX Matters in Multiple Sclerosis. Front Neurol 2020; 11:616. [PMID: 32719651 PMCID: PMC7347971 DOI: 10.3389/fneur.2020.00616] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 05/27/2020] [Indexed: 12/12/2022] Open
Abstract
Multiple sclerosis (MS) is the most common chronic inflammatory and neurodegenerative disease of the central nervous system (CNS). An interesting feature that this debilitating disease shares with many other inflammatory disorders is that susceptibility is higher in females than in males, with the risk of MS being three times higher in women compared to men. Nonetheless, while men have a decreased risk of developing MS, many studies suggest that males have a worse clinical outcome. MS exhibits an apparent sexual dimorphism in both the immune response and the pathophysiology of the CNS damage, ultimately affecting disease susceptibility and progression differently. Overall, women are predisposed to higher rates of inflammatory relapses than men, but men are more likely to manifest signs of disease progression and worse CNS damage. The observed sexual dimorphism in MS may be due to sex hormones and sex chromosomes, acting in parallel or combination. In this review, we outline current knowledge on the sexual dimorphism in MS and discuss the interplay of sex chromosomes, sex hormones, and the immune system in driving MS disease susceptibility and progression.
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Affiliation(s)
- Francesca Gilli
- Department of Neurology, Dartmouth Hitchcock Medical Center, Geisel School of Medicine at Dartmouth, Lebanon, NH, United States
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MacDonald TM, Thomas LN, Gupta A, Barnes PJ, Too CKL. Prolactin and androgen R1881 induce pro-survival carboxypeptidase-D and EDD E3 ligase in triple-negative and HER2+ breast cancer. Am J Cancer Res 2020; 10:1321-1343. [PMID: 32509382 PMCID: PMC7269772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 03/17/2020] [Indexed: 06/11/2023] Open
Abstract
Plasma membrane carboxypeptidase-D (CPD) hydrolyzes C-terminal arginine (Arg) from extracellular substrates, and Arg is converted into nitric oxide (NO) in the cell. CPD is upregulated by prolactin (PRL) and androgens in breast cancer (BCa) cells, increasing NO production to promote cell survival. EDD E3 ubiquitin ligase, upregulated by PRL/androgens, is implicated in TORC1 signaling. This study investigated CPD and EDD in triple-negative (TNBC) and HER2+ BCa. Kaplan-Meier analysis showed a negative correlation between CPD or EDD mRNA expression in TNBC patients and relapse-free survival. Immunohistochemistry showed that benign and malignant breast tissues stained abundantly for the PRL receptor (PRLR) and androgen receptor (AR). CPD and EDD staining were elevated in TNBC and HER2+ tumors as compared to benign tissues. In TNBC/HER2+ cell lines, CPD and EDD protein expression were upregulated by PRL or synthetic androgen methyltrienolone (R1881) at 3-6 h. PRL/R1881-induced CPD in TNBC and HER2+ cells increased intracellular NO production, which was abolished by PRLR antagonist ∆1-9-G129R-hPRL and AR antagonist flutamide. In turn, treatment with NO increased viability and decreased apoptosis in Arg-deprived TNBC cells. Cell viability and apoptosis were also affected in HER2+ cells with CPD knockdown. Lastly, EDD knockdown decreased PRL/R1881-induced phosphorylation of initiation factor 4E binding protein-1 and decreased 4E release in TNBC cells. In summary, PRL/R1881-induced CPD promotes TNBC/HER2+ cell survival through production of NO, and EDD promotes TNBC cell survival by TORC1 activation. This study implicates CPD and EDD as useful therapeutic targets for TNBC/HER2+ tumors, and suggests that PRLR and AR blockade are also beneficial to these patients.
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Affiliation(s)
- Tyler M MacDonald
- Department of Biochemistry & Molecular Biology, Faculty of Medicine, Dalhousie UniversityHalifax, NS, Canada
| | - Lynn N Thomas
- Department of Biochemistry & Molecular Biology, Faculty of Medicine, Dalhousie UniversityHalifax, NS, Canada
| | - Aurinjoy Gupta
- Department of Biochemistry & Molecular Biology, Faculty of Medicine, Dalhousie UniversityHalifax, NS, Canada
| | - Penelope J Barnes
- Department of Pathology, Faculty of Medicine, Dalhousie UniversityHalifax, NS, Canada
- Department of Laboratory Medicine, Faculty of Medicine, Dalhousie UniversityHalifax, NS, Canada
| | - Catherine KL Too
- Department of Biochemistry & Molecular Biology, Faculty of Medicine, Dalhousie UniversityHalifax, NS, Canada
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Deems NP, Leuner B. Pregnancy, postpartum and parity: Resilience and vulnerability in brain health and disease. Front Neuroendocrinol 2020; 57:100820. [PMID: 31987814 PMCID: PMC7225072 DOI: 10.1016/j.yfrne.2020.100820] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 11/25/2019] [Accepted: 01/21/2020] [Indexed: 02/07/2023]
Abstract
Risk and resilience in brain health and disease can be influenced by a variety of factors. While there is a growing appreciation to consider sex as one of these factors, far less attention has been paid to sex-specific variables that may differentially impact females such as pregnancy and reproductive history. In this review, we focus on nervous system disorders which show a female bias and for which there is data from basic research and clinical studies pointing to modification in disease risk and progression during pregnancy, postpartum and/or as a result of parity: multiple sclerosis (MS), depression, stroke, and Alzheimer's disease (AD). In doing so, we join others (Shors, 2016; Galea et al., 2018a) in aiming to illustrate the importance of looking beyond sex in neuroscience research.
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Affiliation(s)
- Nicholas P Deems
- The Ohio State University, Department of Psychology, Columbus, OH, USA
| | - Benedetta Leuner
- The Ohio State University, Department of Psychology, Columbus, OH, USA.
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Abstract
Estrogen (E2) modulates a wide range of neural functions such as spine formation, synaptic plasticity, and neurotransmission in the hippocampus. Dendritic spines and synapse numbers in hippocampal neurons of female rats cyclically fluctuate across the estrous cycle, but the key genes responsible for these fluctuations are still unknown. In order to address this question, we explore the hippocampal transcriptome via RNA-sequencing (RNA-seq) at the proestrus (PE) and estrus (ES) stages in female rats. At standard fold-change selection criteria, 37 differentially expressed genes (DEGs) were found in PE vs. ES groups (FDR adjusted p-value (q)<0.05). The transcriptional changes identified by RNA-seq were confirmed by quantitative real-time PCR. To gain insight into the function of the DEGs, the E2-regulated genes were annotated by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes database (KEGG). Based on GO and KEGG pathways, the identified DEGs of PE vs. ES stages are involved in extracellular matrix formation, regulation of actin cytoskeleton, oxidative stress, neuroprotection, immune system, oligodendrocyte maturation and myelination, signal transduction pathways, growth factor signaling, retinoid signaling, aging, cellular process, metabolism and transport. The profiles of the gene expression in the hippocampus identified at the PE vs. ES stages were compared with the gene expression profiles in ovariectomized (OVX) rats receiving E2 replacement via RNA-seq and qPCR. The profiles of gene expression between the OVX+E2 and the estrous cycle were different and the possible causes were discussed.
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Affiliation(s)
- Javed Iqbal
- College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Zhi-Nei Tan
- College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Min-Xing Li
- College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Hui-Bin Chen
- College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Boyu Ma
- Department of Neuroscience, University of Connecticut Health Center, Farmington, CT, USA
| | - Xin Zhou
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, CT, USA
| | - Xin-Ming Ma
- College of Life Sciences, Shaanxi Normal University, Xi'an, China
- Department of Neuroscience, University of Connecticut Health Center, Farmington, CT, USA
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Abstract
Hyperprolactinaemia is one of the most common problems in clinical endocrinology. It relates with various aetiologies (physiological, pharmacological, pathological), the clarification of which requires careful history taking and clinical assessment. Analytical issues (presence of macroprolactin or of the hook effect) need to be taken into account when interpreting the prolactin values. Medications and sellar/parasellar masses (prolactin secreting or acting through “stalk effect”) are the most common causes of pathological hyperprolactinaemia. Hypogonadism and galactorrhoea are well-recognized manifestations of prolactin excess, although its implications on bone health, metabolism and immune system are also expanding. Treatment mainly aims at restoration and maintenance of normal gonadal function/fertility, and prevention of osteoporosis; further specific management strategies depend on the underlying cause. In this review, we provide an update on the diagnostic and management approaches for the patient with hyperprolactinaemia and on the current data looking at the impact of high prolactin on metabolism, cardiovascular and immune systems.
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Sanabria-Castro A, Flores-Díaz M, Alape-Girón A. Biological models in multiple sclerosis. J Neurosci Res 2019; 98:491-508. [PMID: 31571267 DOI: 10.1002/jnr.24528] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/05/2019] [Accepted: 09/05/2019] [Indexed: 12/13/2022]
Abstract
Considering the etiology of multiple sclerosis (MS) is still unknown, experimental models resembling specific aspects of this immune-mediated demyelinating human disease have been developed to increase the understanding of processes related to pathogenesis, disease evolution, evaluation of therapeutic interventions, and demyelination and remyelination mechanisms. Based on the nature of the investigation, biological models may include in vitro, in vivo, and ex vivo assessments. Even though these approaches have disclosed valuable information, every disease animal model has limitations and can only replicate specific features of MS. In vitro and ex vivo models generally do not reflect what occurs in the organism, and in vivo animal models are more likely used; nevertheless, they are able to reproduce only certain stages of the disease. In vivo MS disease animal models in mammals include: experimental autoimmune encephalomyelitis, viral encephalomyelitis, and induced demyelination. This review examines and describes the most common biological disease animal models for the study of MS, their specific characteristics and limitations.
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Affiliation(s)
- Alfredo Sanabria-Castro
- Research Unit, San Juan de Dios Hospital CCSS, San José, Costa Rica.,School of Pharmacy, University of Costa Rica, San José, Costa Rica
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de Carvalho Jennings Pereira WL, Flauzino T, Alfieri DF, Oliveira SR, Kallaur AP, Simão ANC, Lozovoy MAB, Kaimen-Maciel DR, Maes M, Reiche EMV. Prolactin is Not Associated with Disability and Clinical Forms in Patients with Multiple Sclerosis. Neuromolecular Med 2019; 22:73-80. [PMID: 31473879 DOI: 10.1007/s12017-019-08565-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 08/21/2019] [Indexed: 12/13/2022]
Abstract
An association between prolactinemia with disability, clinical forms, and sex of patients with multiple sclerosis (MS) remains unclear. The aim of this study was to evaluate the association of prolactin with clinical forms and accumulating disability over time in patients with MS. A longitudinal study was carried out with 101 patients with relapsing-remitting MS (RRMS) and 19 with progressive forms of MS (ProgMS). The disability over time, as well as prolactin and ferritin serum levels were evaluated at baseline (T0), 8-month follow-up (T8), and 16-month follow-up. The disability at T0, T8, and T16 was higher among patients with ProgMS than those with RRMS. Prolactin and ferritin levels did not differ over time between both groups. Initially, prolactin was associated with MS disability. After introducing age and sex, the effects of prolactin on disability were no longer significant. Prolactin was associated with age and sex, whereby age was positively associated with disability. In the same way, after introducing age and sex, the effects of diagnosis on prolactin levels, as well as the association between prolactin and ferritin, were no longer significant (P = 0.563 and P = 0.599, respectively). Moreover, 21.6% of the variance in the disability was predicted by age (P < 0.001), and sex (P = 0.049), while prolactin was not significant. In conclusion, the effects of prolactin on the disability and clinical forms of MS patients may be spurious results because those correlations reflect the positive associations of age with the disability and the negative association of age with prolactin.
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Affiliation(s)
- Wildéa Lice de Carvalho Jennings Pereira
- Laboratory of Applied Immunology, Health Sciences Center, University of Londrina, Londrina, Paraná, Brazil
- Outpatient Clinic for Neurology, University Hospital, State University of Londrina, Londrina, Paraná, Brazil
| | - Tamires Flauzino
- Laboratory of Applied Immunology, Health Sciences Center, University of Londrina, Londrina, Paraná, Brazil
| | - Daniela Frizon Alfieri
- Laboratory of Applied Immunology, Health Sciences Center, University of Londrina, Londrina, Paraná, Brazil
| | - Sayonara Rangel Oliveira
- Laboratory of Applied Immunology, Health Sciences Center, University of Londrina, Londrina, Paraná, Brazil
- Department of Pathology, Clinical Analysis and Toxicology, Health Sciences Center, University of Londrina, Av. Robert Koch, 60, Londrina, Paraná, CEP 86.038-440, Brazil
| | - Ana Paula Kallaur
- Laboratory of Applied Immunology, Health Sciences Center, University of Londrina, Londrina, Paraná, Brazil
| | - Andrea Name Colado Simão
- Laboratory of Applied Immunology, Health Sciences Center, University of Londrina, Londrina, Paraná, Brazil
- Department of Pathology, Clinical Analysis and Toxicology, Health Sciences Center, University of Londrina, Av. Robert Koch, 60, Londrina, Paraná, CEP 86.038-440, Brazil
| | - Marcell Alysson Batisti Lozovoy
- Laboratory of Applied Immunology, Health Sciences Center, University of Londrina, Londrina, Paraná, Brazil
- Department of Pathology, Clinical Analysis and Toxicology, Health Sciences Center, University of Londrina, Av. Robert Koch, 60, Londrina, Paraná, CEP 86.038-440, Brazil
| | - Damacio Ramón Kaimen-Maciel
- Outpatient Clinic for Neurology, University Hospital, State University of Londrina, Londrina, Paraná, Brazil
- Clinical Neurology, Santa Casa de Misericórdia de Londrina, Londrina, Paraná, Brazil
| | - Michael Maes
- IMPACT Strategic Research Centre, School of Medicine, Deakin University, Geelong, VIC, Australia
- Department of Psychiatry, King Chulalongkorn Memorial Hospital, Chulalongkorn, Bangkok, Thailand
| | - Edna Maria Vissoci Reiche
- Laboratory of Applied Immunology, Health Sciences Center, University of Londrina, Londrina, Paraná, Brazil.
- Department of Pathology, Clinical Analysis and Toxicology, Health Sciences Center, University of Londrina, Av. Robert Koch, 60, Londrina, Paraná, CEP 86.038-440, Brazil.
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Faissner S, Plemel JR, Gold R, Yong VW. Progressive multiple sclerosis: from pathophysiology to therapeutic strategies. Nat Rev Drug Discov 2019; 18:905-922. [PMID: 31399729 DOI: 10.1038/s41573-019-0035-2] [Citation(s) in RCA: 255] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2019] [Indexed: 02/07/2023]
Abstract
Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system that involves demyelination and axonal degeneration. Although substantial progress has been made in drug development for relapsing-remitting MS, treatment of the progressive forms of the disease, which are characterized clinically by the accumulation of disability in the absence of relapses, remains unsatisfactory. This unmet clinical need is related to the complexity of the pathophysiological mechanisms involved in MS progression. Chronic inflammation, which occurs behind a closed blood-brain barrier with activation of microglia and continued involvement of T cells and B cells, is a hallmark pathophysiological feature. Inflammation can enhance mitochondrial damage in neurons, which, consequently, develop an energy deficit, further reducing axonal health. The growth-inhibitory and inflammatory environment of lesions also impairs remyelination, a repair process that might protect axons from degeneration. Moreover, neurodegeneration is accelerated by the altered expression of ion channels on denuded axons. In this Review, we discuss the current understanding of these disease mechanisms and highlight emerging therapeutic strategies based on these insights, including those targeting the neuroinflammatory and degenerative aspects as well as remyelination-promoting approaches.
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Affiliation(s)
- Simon Faissner
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany. .,Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada.
| | - Jason R Plemel
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Ralf Gold
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - V Wee Yong
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada.
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Keller M, Vandenberg LN, Charlier TD. The parental brain and behavior: A target for endocrine disruption. Front Neuroendocrinol 2019; 54:100765. [PMID: 31112731 PMCID: PMC6708493 DOI: 10.1016/j.yfrne.2019.100765] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 05/15/2019] [Accepted: 05/17/2019] [Indexed: 12/25/2022]
Abstract
During pregnancy, the sequential release of progesterone, 17β-estradiol, prolactin, oxytocin and placental lactogens reorganize the female brain. Brain structures such as the medial preoptic area, the bed nucleus of the stria terminalis and the motivation network including the ventral tegmental area and the nucleus accumbens are reorganized by this specific hormonal schedule such that the future mother will be ready to provide appropriate care for her offspring right at parturition. Any disruption to this hormone pattern, notably by exposures to endocrine disrupting chemicals (EDC), is therefore likely to affect the maternal brain and result in maladaptive maternal behavior. Development effects of EDCs have been the focus of intense study, but relatively little is known about how the maternal brain and behavior are affected by EDCs. We encourage further research to better understand how the physiological hormone sequence prepares the mother's brain and how EDC exposure could disturb this reorganization.
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Affiliation(s)
- Matthieu Keller
- Laboratoire de Physiologie de la Reproduction & des Comportements, UMR 7247 INRA/CNRS/Université de Tours/IFCE, Nouzilly, France
| | - Laura N Vandenberg
- School of Public Health and Health Sciences, University of Massachusetts, Amherst, USA
| | - Thierry D Charlier
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, F-35000 Rennes, France.
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Domperidone-induced elevation of serum prolactin levels and immune response in multiple sclerosis. J Neuroimmunol 2019; 334:576974. [PMID: 31174092 DOI: 10.1016/j.jneuroim.2019.576974] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 05/17/2019] [Accepted: 05/28/2019] [Indexed: 12/21/2022]
Abstract
Increasing systemic prolactin levels improves remyelination and neuronal survival in animal models of Multiple Sclerosis (MS), but it has been suggested that this therapeutic strategy may also increase inflammatory responses, and potentially harm patients. We analyzed serum prolactin and cytokine, chemokine and growth factor levels in sera from MS patients enrolled in two clinical trials who were treated with domperidone, a generic drug that increases systemic prolactin levels. In patients treated with domperidone, molecule levels changed little during follow up, while prolactin levels increased several-fold. We found no significant association between prolactin levels and radiological or clinical outcome.
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Enhanced remyelination during late pregnancy: involvement of the GABAergic system. Sci Rep 2019; 9:7728. [PMID: 31118452 PMCID: PMC6531481 DOI: 10.1038/s41598-019-44050-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 05/08/2019] [Indexed: 11/08/2022] Open
Abstract
Pregnant women with MS experience fewer relapses, especially during the third trimester. In this study, we explore the cellular and molecular events that bring about the protective effect of late pregnancy on the course of de/remyelination in rats. Using cellular, molecular, and ultrastructural methods, we explored remyelination in response to a focal demyelination in the corpus callosum of late pregnant, virgin, and postpartum rats. We further explored the role of GABAA receptor (GABAAR) in the promyelinating effect observed during late pregnancy. Remyelination in response to a gliotoxin-induced demyelination in the corpus callosum was enhanced in late pregnant rats when compared to that seen in virgin and postpartum rats. This pregnancy-associated promyelinating effect was lost when either the GABAAR was blocked or when 5α-reductase, the rate limiting enzyme for the endogenous GABAAR activator allopregnanolone, was inhibited. Taken together, these data suggest that the pregnancy-associated pro-myelination operates, at least in part, through a GABAergic activated system.
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Abstract
Current multiple sclerosis (MS) therapies are effective in reducing relapse rate, short-term measures of disability, and magnetic resonance imaging (MRI) measures of inflammation in relapsing remitting MS (RRMS), whereas in progressive/degenerative disease phases these medications are of little or no benefit. Therefore, the development of new therapies aimed at reversing neurodegeneration is of great interest. Remyelination, which is usually a spontaneous endogenous process, is achieved when myelin-producing oligodendrocytes are generated from oligodendrocyte precursor cells (OPCs). Even though these precursor cells are abundant in MS brains, their regeneration capacity is limited. Enhancing the generation of myelin-producing cells is therefore a major focus of MS research. Here we present an overview of the different advancements in the field of remyelination, including suitable animal models for testing remyelination therapies, approved medications with a proposed role in regeneration, myelin repair treatments under investigation in clinical trials, as well as future therapeutics aimed at facilitating myelin repair.
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Affiliation(s)
- David Kremer
- Department of Neurology, Medical Faculty, University of Düsseldorf, Düsseldorf, Germany
| | - Rainer Akkermann
- Department of Neurology, Medical Faculty, University of Düsseldorf, Düsseldorf, Germany
| | - Patrick Küry
- Department of Neurology, Medical Faculty, University of Düsseldorf, Düsseldorf, Germany
| | - Ranjan Dutta
- Department of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio-44195
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Ysrraelit MC, Correale J. Impact of sex hormones on immune function and multiple sclerosis development. Immunology 2019; 156:9-22. [PMID: 30222193 PMCID: PMC6283654 DOI: 10.1111/imm.13004] [Citation(s) in RCA: 130] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 08/25/2018] [Accepted: 09/05/2018] [Indexed: 12/20/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS) affecting young people and leading to demyelination and neurodegeneration. The disease is clearly more common in women, in whom incidence has been rising. Gender differences include: earlier disease onset and more frequent relapses in women; and faster progression and worse outcomes in men. Hormone-related physiological conditions in women such as puberty, pregnancy, puerperium, and menopause also exert significant influence both on disease prevalence as well as on outcomes. Hormonal and/or genetic factors are therefore believed to be involved in regulating the course of disease. In this review, we discuss clinical evidence for the impact of sex hormones (estrogens, progesterone, prolactin, and testosterone) on MS and attempt to elucidate the hormonal and immunological mechanisms potentially underlying these changes. We also review current knowledge on the relationship between sex hormones and resident CNS cells and provide new insights in the context of MS. Understanding these molecular mechanisms may contribute to the development of new and safer treatments for both men and women.
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Affiliation(s)
- María C. Ysrraelit
- Department of NeurologyRaúl Carrea Institute for Neurological Research (FLENI)Buenos AiresArgentina
| | - Jorge Correale
- Department of NeurologyRaúl Carrea Institute for Neurological Research (FLENI)Buenos AiresArgentina
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