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Wang Y, Mishra A, Brinton RD. Transitions in metabolic and immune systems from pre-menopause to post-menopause: implications for age-associated neurodegenerative diseases. F1000Res 2020; 9. [PMID: 32047612 PMCID: PMC6993821 DOI: 10.12688/f1000research.21599.1] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/22/2020] [Indexed: 12/13/2022] Open
Abstract
The brain undergoes two aging programs: chronological and endocrinological. This is particularly evident in the female brain, which undergoes programs of aging associated with reproductive competency. Comprehensive understanding of the dynamic metabolic and neuroinflammatory aging process in the female brain can illuminate windows of opportunities to promote healthy brain aging. Bioenergetic crisis and chronic low-grade inflammation are hallmarks of brain aging and menopause and have been implicated as a unifying factor causally connecting genetic risk factors for Alzheimer's disease and other neurodegenerative diseases. In this review, we discuss metabolic phenotypes of pre-menopausal, peri-menopausal, and post-menopausal aging and their consequent impact on the neuroinflammatory profile during each transition state. A critical aspect of the aging process is the dynamic metabolic neuro-inflammatory profiles that emerge during chronological and endocrinological aging. These dynamic systems of biology are relevant to multiple age-associated neurodegenerative diseases and provide a therapeutic framework for prevention and delay of neurodegenerative diseases of aging. While these findings are based on investigations of the female brain, they have a broader fundamental systems of biology strategy for investigating the aging male brain. Molecular characterization of alterations in fuel utilization and neuroinflammatory mechanisms during these neuro-endocrine transition states can inform therapeutic strategies to mitigate the risk of Alzheimer's disease in women. We further discuss a precision hormone replacement therapy approach to target symptom profiles during endocrine and chronological aging to reduce risk for age-related neurodegenerative diseases.
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Affiliation(s)
- Yiwei Wang
- Center for Innovation in Brain Science, University of Arizona, Tucson, AZ, 85721, USA
| | - Aarti Mishra
- Center for Innovation in Brain Science, University of Arizona, Tucson, AZ, 85721, USA
| | - Roberta Diaz Brinton
- Center for Innovation in Brain Science, University of Arizona, Tucson, AZ, 85721, USA
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102
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Vitamin D and Demyelinating Diseases: Neuromyelitis Optica (NMO) and Multiple Sclerosis (MS). Autoimmune Dis 2020; 2020:8718736. [PMID: 32373353 PMCID: PMC7187724 DOI: 10.1155/2020/8718736] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 11/30/2019] [Indexed: 12/18/2022] Open
Abstract
Vitamin D deficiency is prevalent in all ages regardless of climate or geographical location and evidence is emerging that the incidence of autoimmune diseases is increasing worldwide. Women make up a large proportion of autoimmune disease diagnoses, underscoring the importance of fully elucidating the complex synergistic relationships between estrogens and vitamin D. Vitamin D receptor-activating drugs appear to enhance remyelination in patients diagnosed with multiple sclerosis (MS) and other demyelinating diseases such as neuromyelitis optica (NMO). This review is intended to update health practitioners about the potential role of vitamin D deficiency demyelination and to motivate future research on dietary recommendations for vitamin D in preventing and treating demyel1nating diseases.
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103
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Wawrusiewicz-Kurylonek N, Gościk J, Chorąży M, Siewko K, Posmyk R, Zajkowska A, Citko A, Maciulewski R, Szelachowska M, Myśliwiec J, Jastrzębska I, Kułakowska A, Kochanowicz J, Krętowski AJ. The interferon-induced helicase C domain-containing protein 1 gene variant (rs1990760) as an autoimmune-based pathology susceptibility factor. Immunobiology 2020; 225:151864. [DOI: 10.1016/j.imbio.2019.10.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/17/2019] [Accepted: 10/29/2019] [Indexed: 12/18/2022]
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104
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Zemskov AM, Berezhnova TA, Zemskova VA, Dyadina KS, Kulintsova YV, Larin AV. Immune-metabolic genesis of pathological processes. RESEARCH RESULTS IN PHARMACOLOGY 2019. [DOI: 10.3897/rrpharmacology.5.38386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
This article deals with metabolic-immune processes at rest and under stress conditions, which, in turn, results in the development of immune-dependent and immune-associated disorders. The article analyzes study results and conclusions of various literature sources and experimental data in healthy individuals and patients suffering from non-specific inflammatory lung diseases; purulent-inflammatory diseases and their combinations, primary and secondary progressive multiple sclerosis in the acute stage and remission. Research studies investigated the impact of the type, stage, combination of diseases on the parameters of the immunologic and metabolic statuses, as well as their correlations. The authors also analyzed metabolic effects of immunomodulators. Based on the analysis of the literature and own clinical and experimental data, the authors identified the ability of metabolic factors to regulate immunological processes. A correlative analysis of examination results of the patients with various diseases helped detect the unity of the immune-metabolic mechanisms of pathology. The data on the therapeutic effect of various modulators through differentiated biochemical chains and vice versa – the metabolic effect through immunological mechanisms –were analyzed in the study. Thus, one can testify that there is the phenomenon of a mediated effect of some immunocorrectors on the reactivity through metabolic chains. The fact that a number of modulators and metabolics can simultaneously affect the biochemical and immunological parameters of patients proved the above phenomenon. There was revealed a significant correlation interaction of the immune-metabolic parameters with various types of purulent-inflammatory diseases, which proves the formation of a single mechanism of pathology.
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105
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Cavaliere C, Vilades E, Alonso-Rodríguez MC, Rodrigo MJ, Pablo LE, Miguel JM, López-Guillén E, Morla EMS, Boquete L, Garcia-Martin E. Computer-Aided Diagnosis of Multiple Sclerosis Using a Support Vector Machine and Optical Coherence Tomography Features. SENSORS 2019; 19:s19235323. [PMID: 31816925 PMCID: PMC6928765 DOI: 10.3390/s19235323] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 11/27/2019] [Accepted: 11/30/2019] [Indexed: 12/16/2022]
Abstract
The purpose of this paper is to evaluate the feasibility of diagnosing multiple sclerosis (MS) using optical coherence tomography (OCT) data and a support vector machine (SVM) as an automatic classifier. Forty-eight MS patients without symptoms of optic neuritis and forty-eight healthy control subjects were selected. Swept-source optical coherence tomography (SS-OCT) was performed using a DRI (deep-range imaging) Triton OCT device (Topcon Corp., Tokyo, Japan). Mean values (right and left eye) for macular thickness (retinal and choroidal layers) and peripapillary area (retinal nerve fibre layer, retinal, ganglion cell layer—GCL, and choroidal layers) were compared between both groups. Based on the analysis of the area under the receiver operator characteristic curve (AUC), the 3 variables with the greatest discriminant capacity were selected to form the feature vector. A SVM was used as an automatic classifier, obtaining the confusion matrix using leave-one-out cross-validation. Classification performance was assessed with Matthew’s correlation coefficient (MCC) and the AUCCLASSIFIER. The most discriminant variables were found to be the total GCL++ thickness (between inner limiting membrane to inner nuclear layer boundaries), evaluated in the peripapillary area and macular retina thickness in the nasal quadrant of the outer and inner rings. Using the SVM classifier, we obtained the following values: MCC = 0.81, sensitivity = 0.89, specificity = 0.92, accuracy = 0.91, and AUCCLASSIFIER = 0.97. Our findings suggest that it is possible to classify control subjects and MS patients without previous optic neuritis by applying machine-learning techniques to study the structural neurodegeneration in the retina.
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Affiliation(s)
- Carlo Cavaliere
- Biomedical Engineering Group, Department of Electronics, University of Alcalá, 28801 Alcalá de Henares, Spain; (C.C.); (J.M.M.); (E.L.-G.)
| | - Elisa Vilades
- Department of Ophthalmology, Miguel Servet University Hospital, 50009 Zaragoza, Spain; (E.V.); (L.E.P.)
- Aragon Institute for Health Research (IIS Aragon), Miguel Servet Ophthalmology Innovation and Research Group (GIMSO), University of Zaragoza, 50009 Zaragoza, Spain
| | - Mª C. Alonso-Rodríguez
- Department of Physics and Mathematics, University of Alcalá, 28801 Alcalá de Henares, Spain;
| | - María Jesús Rodrigo
- Department of Ophthalmology, Miguel Servet University Hospital, 50009 Zaragoza, Spain; (E.V.); (L.E.P.)
- Aragon Institute for Health Research (IIS Aragon), Miguel Servet Ophthalmology Innovation and Research Group (GIMSO), University of Zaragoza, 50009 Zaragoza, Spain
- RETICS-Oftared: Thematic Networks for Co-operative Research in Health for Ocular Diseases, 28040 Madrid, Spain
- Correspondence: (M.J.R.); (L.B.); (E.G.-M.); Tel.: +34-976765558 (E.G.-M.); Fax: +34-97656623 (E.G.-M.)
| | - Luis Emilio Pablo
- Department of Ophthalmology, Miguel Servet University Hospital, 50009 Zaragoza, Spain; (E.V.); (L.E.P.)
- Aragon Institute for Health Research (IIS Aragon), Miguel Servet Ophthalmology Innovation and Research Group (GIMSO), University of Zaragoza, 50009 Zaragoza, Spain
| | - Juan Manuel Miguel
- Biomedical Engineering Group, Department of Electronics, University of Alcalá, 28801 Alcalá de Henares, Spain; (C.C.); (J.M.M.); (E.L.-G.)
| | - Elena López-Guillén
- Biomedical Engineering Group, Department of Electronics, University of Alcalá, 28801 Alcalá de Henares, Spain; (C.C.); (J.M.M.); (E.L.-G.)
| | - Eva Mª Sánchez Morla
- Department of Psychiatry, 12 Octubre University Hospital Research Institute (i+12), 28041 Madrid, Spain;
- Faculty of Medicine, Complutense University of Madrid, 28040 Madrid, Spain
- CIBERSAM: Biomedical Research Networking Centre in Mental Health, 28029 Madrid, Spain
| | - Luciano Boquete
- Biomedical Engineering Group, Department of Electronics, University of Alcalá, 28801 Alcalá de Henares, Spain; (C.C.); (J.M.M.); (E.L.-G.)
- RETICS-Oftared: Thematic Networks for Co-operative Research in Health for Ocular Diseases, 28040 Madrid, Spain
- Correspondence: (M.J.R.); (L.B.); (E.G.-M.); Tel.: +34-976765558 (E.G.-M.); Fax: +34-97656623 (E.G.-M.)
| | - Elena Garcia-Martin
- Department of Ophthalmology, Miguel Servet University Hospital, 50009 Zaragoza, Spain; (E.V.); (L.E.P.)
- Aragon Institute for Health Research (IIS Aragon), Miguel Servet Ophthalmology Innovation and Research Group (GIMSO), University of Zaragoza, 50009 Zaragoza, Spain
- RETICS-Oftared: Thematic Networks for Co-operative Research in Health for Ocular Diseases, 28040 Madrid, Spain
- Correspondence: (M.J.R.); (L.B.); (E.G.-M.); Tel.: +34-976765558 (E.G.-M.); Fax: +34-97656623 (E.G.-M.)
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106
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Yuen GJ. Autoimmunity in women: an eX amination of eX isting models. Clin Immunol 2019; 210:108270. [PMID: 31669190 DOI: 10.1016/j.clim.2019.108270] [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: 08/22/2019] [Revised: 10/01/2019] [Accepted: 10/07/2019] [Indexed: 01/25/2023]
Abstract
Women comprise over 80% of the affected individuals for many autoimmune conditions. Although sex-specific differences in sex hormones are thought to contribute to the female predisposition to autoimmunity, emerging evidence also suggests an intriguing role of both physiological and dysregulated X-chromosome inactivation. Furthermore, recent studies have demonstrated that many immune genes encoded on the X chromosome are expressed biallelically, and the contribution of these sex-specific differences in immune gene dosage to autoimmunity remains to be fully explored. This review highlights recent developments in this field and discusses questions that remain unanswered.
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Affiliation(s)
- Grace J Yuen
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA.
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107
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Maglione A, Rolla S, Mercanti SFD, Cutrupi S, Clerico M. The Adaptive Immune System in Multiple Sclerosis: An Estrogen-Mediated Point of View. Cells 2019; 8:E1280. [PMID: 31635066 PMCID: PMC6829884 DOI: 10.3390/cells8101280] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 10/09/2019] [Accepted: 10/18/2019] [Indexed: 12/11/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic central nervous system inflammatory disease that leads to demyelination and neurodegeneration. The third trimester of pregnancy, which is characterized by high levels of estrogens, has been shown to be associated with reduced relapse rates compared with the rates before pregnancy. These effects could be related to the anti-inflammatory properties of estrogens, which orchestrate the reshuffling of the immune system toward immunotolerance to allow for fetal growth. The action of these hormones is mediated by the transcriptional regulation activity of estrogen receptors (ERs). Estrogen levels and ER expression define a specific balance of immune cell types. In this review, we explore the role of estradiol (E2) and ERs in the adaptive immune system, with a focus on estrogen-mediated cellular, molecular, and epigenetic mechanisms related to immune tolerance and neuroprotection in MS. The epigenome dynamics of immune systems are described as key molecular mechanisms that act on the regulation of immune cell identity. This is a completely unexplored field, suggesting a future path for more extensive research on estrogen-induced coregulatory complexes and molecular circuitry as targets for therapeutics in MS.
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Affiliation(s)
- Alessandro Maglione
- Department of Clinical and Biological Sciences, University of Turin, 10043 Orbassano, Italy.
| | - Simona Rolla
- Department of Clinical and Biological Sciences, University of Turin, 10043 Orbassano, Italy.
| | | | - Santina Cutrupi
- Department of Clinical and Biological Sciences, University of Turin, 10043 Orbassano, Italy.
| | - Marinella Clerico
- Department of Clinical and Biological Sciences, University of Turin, 10043 Orbassano, Italy.
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108
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Ahnstedt H, McCullough LD. The impact of sex and age on T cell immunity and ischemic stroke outcomes. Cell Immunol 2019; 345:103960. [PMID: 31519365 DOI: 10.1016/j.cellimm.2019.103960] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/29/2019] [Accepted: 07/31/2019] [Indexed: 01/14/2023]
Abstract
Sex differences are well-recognized in ischemic stroke, a disease mainly affecting the elderly. Stroke results in robust activation of central and peripheral immune responses which contributes to functional outcome. Aging is associated with increased low-grade chronic inflammation known as "inflammaging" that renders aged males and females more susceptible to poor outcomes after ischemic stroke. Despite the fact that sex differences are well-documented in immunity and inflammation, few studies have focused on sex differences in inflammatory responses after ischemic stroke and even fewer have been performed in the context of aging. The role of T cell responses in ischemic stroke have gained increasing attention over the past decade as data suggest a major role in the pathophysiology/recovery after ischemic injury. T cells offer an attractive therapeutic target due to their relatively delayed infiltration into the ischemic brain. This review will focus on T cell immune responses in ischemic stroke, highlighting studies examining the effects of aging and biological sex.
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Affiliation(s)
- Hilda Ahnstedt
- Department of Neurology, McGovern Medical School at The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.
| | - Louise D McCullough
- Department of Neurology, McGovern Medical School at The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
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