1
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Khadka S, Dziadowicz SA, Xu X, Wang L, Hu G, Carrero JA, DiPaolo RJ, Busada JT. Endogenous glucocorticoids are required for normal macrophage activation and gastric Helicobacter pylori immunity. Am J Physiol Gastrointest Liver Physiol 2024; 327:G531-G544. [PMID: 39041676 DOI: 10.1152/ajpgi.00114.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 07/03/2024] [Accepted: 07/18/2024] [Indexed: 07/24/2024]
Abstract
Glucocorticoids are steroid hormones well known for their potent anti-inflammatory effects. However, their immunomodulatory properties are multifaceted. Increasing evidence suggests that glucocorticoid signaling promotes effective immunity and that disruption of glucocorticoid signaling impairs immune function. In this study, we conditionally deleted the glucocorticoid receptor (GR) in the myeloid lineage using the LysM-Cre driver (myGRKO). We examined the impact on macrophage activation and gastric immune responses to Helicobacter pylori, the best-known risk factor of gastric cancer. Our results indicate that, compared with wild type (WT), glucocorticoid receptor knockout (GRKO) macrophages exhibited higher expression of proinflammatory genes in steroid-free conditions. However, when challenged in vivo, GRKO macrophages exhibited aberrant chromatin landscapes and impaired proinflammatory gene expression profiles. Moreover, gastric colonization with H. pylori revealed impaired gastric immune responses and reduced T cell recruitment in myGRKO mice. As a result, myGRKO mice were protected from atrophic gastritis and pyloric metaplasia development. These results demonstrate a dual role for glucocorticoid signaling in preparing macrophages to respond to bacterial infection but limiting their pathogenic activation. In addition, our results support that macrophages are critical for gastric H. pylori immunity.NEW & NOTEWORTHY Signaling by endogenous glucocorticoids primes macrophages toward more robust responses to pathogens. Disruption of glucocorticoid signaling caused dysregulation of the chromatin landscape, blunted proinflammatory gene activation upon bacterial challenge, and impaired the gastric inflammatory response to Helicobacter pylori infection.
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Affiliation(s)
- Stuti Khadka
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, West Virginia, United States
| | - Sebastian A Dziadowicz
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, West Virginia, United States
| | - Xiaojiang Xu
- Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Lei Wang
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, West Virginia, United States
| | - Gangqing Hu
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, West Virginia, United States
| | - Javier A Carrero
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, Saint Louis, Missouri, United States
| | - Richard J DiPaolo
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, Saint Louis, Missouri, United States
| | - Jonathan T Busada
- Department of Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, West Virginia, United States
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2
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Frank MG, Ball JB, Hopkins S, Kelley T, Kuzma AJ, Thompson RS, Fleshner M, Maier SF. SARS-CoV-2 S1 subunit produces a protracted priming of the neuroinflammatory, physiological, and behavioral responses to a remote immune challenge: A role for corticosteroids. Brain Behav Immun 2024; 121:87-103. [PMID: 39043345 DOI: 10.1016/j.bbi.2024.07.034] [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: 06/24/2024] [Revised: 07/08/2024] [Accepted: 07/20/2024] [Indexed: 07/25/2024] Open
Abstract
Long COVID is a major public health consequence of COVID-19 and is characterized by multiple neurological and neuropsychatric symptoms. SARS-CoV-2 antigens (e.g., spike S1 subunit) are found in the circulation of Long COVID patients, have been detected in post-mortem brain of COVID patients, and exhibit neuroinflammatory properties. Considering recent observations of chronic neuroinflammation in Long COVID patients, the present study explores the idea that antigens derived from SARS-CoV-2 might produce a long-term priming or sensitization of neuroinflammatory processes, thereby potentiating the magnitude and/or duration of the neuroinflammatory response to future inflammatory insults. Rats were administered S1 or vehicle intra-cisterna magna and 7d later challenged with vehicle or LPS. The neuroinflammatory, physiological, and behavioral responses to LPS were measured at various time points post-LPS. We found that prior S1 treatment potentiated many of these responses to LPS suggesting that S1 produces a protracted priming of these processes. Further, S1 produced a protracted reduction in basal brain corticosteroids. Considering the anti-inflammatory properties of corticosteroids, these findings suggest that S1 might disinhibit innate immune processes in brain by reducing anti-inflammatory drive, thereby priming neuroinflammatory processes. Given that hypocortisolism is observed in Long COVID, we propose that similar S1-induced innate immune priming processes might play role in the pathophysiology of Long COVID.
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Affiliation(s)
- Matthew G Frank
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO 80301, USA; Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80301, USA.
| | - Jayson B Ball
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO 80301, USA
| | - Shelby Hopkins
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80301, USA
| | - Tel Kelley
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80301, USA
| | - Angelina J Kuzma
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80301, USA
| | - Robert S Thompson
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80301, USA
| | - Monika Fleshner
- Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80301, USA
| | - Steven F Maier
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO 80301, USA
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3
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Goto S, Kojima N, Komori M, Kawade N, Oshima K, Nadano D, Sasaki N, Horio F, Matsuda T, Miyata S. Vitamin C deficiency alters the transcriptome of the rat brain in a glucocorticoid-dependent manner, leading to microglial activation and reduced neurogenesis. J Nutr Biochem 2024; 128:109608. [PMID: 38458474 DOI: 10.1016/j.jnutbio.2024.109608] [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: 07/19/2023] [Revised: 02/20/2024] [Accepted: 03/01/2024] [Indexed: 03/10/2024]
Abstract
Vitamin C (VitC) is maintained at high concentrations in the brain and is an essential micronutrient for brain function. VitC deficiency leads to neuropsychiatric scurvy, which is characterized by depression and cognitive impairment. However, the molecular mechanism by which mild VitC deficiency impairs brain function is currently unknown. In the present study, we conducted RNA sequencing analysis and found that a short-term VitC deficiency altered the brain transcriptome in ODS rats, which cannot synthesize VitC. Bioinformatic analysis indicated that VitC deficiency affected the expression of genes controlled by the glucocorticoid receptor in the brain. We confirmed an increased secretion of glucocorticoids from the adrenal gland during VitC deficiency. We found that non-neuronal cells, including microglia, which are resident immune cells in the brain, changed their transcriptional patterns in response to VitC deficiency. Immunohistochemical analysis revealed that the quiescent ramified microglia transform into the activated amoeboid microglia during three weeks of VitC deficiency. The morphological activation of microglia was accompanied by increased expression of proinflammatory cytokines such as interleukin-6 in the hippocampus. Furthermore, VitC deficiency decreased the number of newly born neurons in the dentate gyrus of the hippocampus, suggesting that VitC was required for adult neurogenesis that plays a crucial role in learning and memory. Our findings may provide insights into the molecular mechanisms underlying the maintenance of normal brain function by adequate levels of VitC.
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Affiliation(s)
- Shunta Goto
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Natsuki Kojima
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Miyu Komori
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Noe Kawade
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan; Department of Neuroscience and Pathobiology, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan
| | - Kenzi Oshima
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Daita Nadano
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Nobumitsu Sasaki
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan; Institute of Global Innovation Research, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
| | - Fumihiko Horio
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan; Department of Life Studies and Environmental Science, Nagoya Women's University, Nagoya, Japan
| | - Tsukasa Matsuda
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan; Faculty of Food and Agricultural Sciences, Fukushima University, Fukushima, Japan
| | - Shinji Miyata
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan; Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan.
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4
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Sun L, Wilke Saliba S, Apweiler M, Akmermer K, Herlan C, Grathwol C, de Oliveira ACP, Normann C, Jung N, Bräse S, Fiebich BL. Anti-Neuroinflammatory Effects of a Macrocyclic Peptide-Peptoid Hybrid in Lipopolysaccharide-Stimulated BV2 Microglial Cells. Int J Mol Sci 2024; 25:4462. [PMID: 38674048 PMCID: PMC11049839 DOI: 10.3390/ijms25084462] [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: 02/15/2024] [Revised: 04/02/2024] [Accepted: 04/03/2024] [Indexed: 04/28/2024] Open
Abstract
Inflammation processes of the central nervous system (CNS) play a vital role in the pathogenesis of several neurological and psychiatric disorders like depression. These processes are characterized by the activation of glia cells, such as microglia. Clinical studies showed a decrease in symptoms associated with the mentioned diseases after the treatment with anti-inflammatory drugs. Therefore, the investigation of novel anti-inflammatory drugs could hold substantial potential in the treatment of disorders with a neuroinflammatory background. In this in vitro study, we report the anti-inflammatory effects of a novel hexacyclic peptide-peptoid hybrid in lipopolysaccharide (LPS)-stimulated BV2 microglial cells. The macrocyclic compound X15856 significantly suppressed Interleukin 6 (IL-6), tumor necrosis factor-α (TNF-α), c-c motif chemokine ligand 2 (CCL2), CCL3, C-X-C motif chemokine ligand 2 (CXCL2), and CXCL10 expression and release in LPS-treated BV2 microglial cells. The anti-inflammatory effects of the compound are partially explained by the modulation of the phosphorylation of p38 mitogen-activated protein kinases (MAPK), p42/44 MAPK (ERK 1/2), protein kinase C (PKC), and the nuclear factor (NF)-κB, respectively. Due to its remarkable anti-inflammatory properties, this compound emerges as an encouraging option for additional research and potential utilization in disorders influenced by inflammation, such as depression.
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Affiliation(s)
- Lu Sun
- Neuroimmunology and Neurochemistry Research Group, Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, D-79104 Freiburg, Germany
| | - Soraya Wilke Saliba
- Neuroimmunology and Neurochemistry Research Group, Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, D-79104 Freiburg, Germany
| | - Matthias Apweiler
- Neuroimmunology and Neurochemistry Research Group, Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, D-79104 Freiburg, Germany
| | - Kamil Akmermer
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany; (K.A.); (C.H.); (S.B.)
| | - Claudine Herlan
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany; (K.A.); (C.H.); (S.B.)
- Institute of Biological and Chemical Systems-Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, D-76131 Karlsruhe, Germany
| | - Christoph Grathwol
- Institute of Biological and Chemical Systems-Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, D-76131 Karlsruhe, Germany
| | | | - Claus Normann
- Mechanisms of Depression Research Group, Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, D-79104 Freiburg, Germany
| | - Nicole Jung
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany; (K.A.); (C.H.); (S.B.)
- Institute of Biological and Chemical Systems-Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, D-76131 Karlsruhe, Germany
| | - Stefan Bräse
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany; (K.A.); (C.H.); (S.B.)
- Institute of Biological and Chemical Systems-Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, D-76131 Karlsruhe, Germany
| | - Bernd L. Fiebich
- Neuroimmunology and Neurochemistry Research Group, Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, D-79104 Freiburg, Germany
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5
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Bodemeier Loayza Careaga M, Wu TJ. Chronically stressed male and female mice show a similar peripheral and central pro-inflammatory profile after an immune challenge. PLoS One 2024; 19:e0297776. [PMID: 38381770 PMCID: PMC10880960 DOI: 10.1371/journal.pone.0297776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 01/12/2024] [Indexed: 02/23/2024] Open
Abstract
Although acute stressors are known for stimulating the production of glucocorticoids and pro-inflammatory cytokines in rodents, the effects of chronic stressors on cytokine levels and the activation of the hypothalamic-pituitary-adrenal (HPA) axis, especially in response to a subsequent challenge, are less clear. In this study, male and female mice were exposed to 6 weeks of chronic variable stress (CVS) and the peripheral and central levels of IL-1β, IL-6, and TNF-α, as well as the HPA axis reactivity, were measured after an acute injection of LPS. The findings indicate that the pro-inflammatory profile in the plasma, regardless of stress exposure, was similar between male and female animals, whereas there was a region-, sex-, and stress-dependent pattern in the brain. Exposure to chronic stressors blunted the HPA reactivity to the LPS challenge, indicating a modulatory effect on the stress axis responsiveness.
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Affiliation(s)
- Mariella Bodemeier Loayza Careaga
- Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Bethesda, Maryland, United States of America
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, Maryland, United States of America
| | - T. John Wu
- Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Bethesda, Maryland, United States of America
- Program in Neuroscience, Uniformed Services University of the Health Sciences, Bethesda, Maryland, United States of America
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6
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Cui L, Li S, Wang S, Wu X, Liu Y, Yu W, Wang Y, Tang Y, Xia M, Li B. Major depressive disorder: hypothesis, mechanism, prevention and treatment. Signal Transduct Target Ther 2024; 9:30. [PMID: 38331979 PMCID: PMC10853571 DOI: 10.1038/s41392-024-01738-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 12/24/2023] [Accepted: 12/28/2023] [Indexed: 02/10/2024] Open
Abstract
Worldwide, the incidence of major depressive disorder (MDD) is increasing annually, resulting in greater economic and social burdens. Moreover, the pathological mechanisms of MDD and the mechanisms underlying the effects of pharmacological treatments for MDD are complex and unclear, and additional diagnostic and therapeutic strategies for MDD still are needed. The currently widely accepted theories of MDD pathogenesis include the neurotransmitter and receptor hypothesis, hypothalamic-pituitary-adrenal (HPA) axis hypothesis, cytokine hypothesis, neuroplasticity hypothesis and systemic influence hypothesis, but these hypothesis cannot completely explain the pathological mechanism of MDD. Even it is still hard to adopt only one hypothesis to completely reveal the pathogenesis of MDD, thus in recent years, great progress has been made in elucidating the roles of multiple organ interactions in the pathogenesis MDD and identifying novel therapeutic approaches and multitarget modulatory strategies, further revealing the disease features of MDD. Furthermore, some newly discovered potential pharmacological targets and newly studied antidepressants have attracted widespread attention, some reagents have even been approved for clinical treatment and some novel therapeutic methods such as phototherapy and acupuncture have been discovered to have effective improvement for the depressive symptoms. In this work, we comprehensively summarize the latest research on the pathogenesis and diagnosis of MDD, preventive approaches and therapeutic medicines, as well as the related clinical trials.
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Affiliation(s)
- Lulu Cui
- Department of Forensic Analytical Toxicology, School of Forensic Medicine, China Medical University, Shenyang, China
- Liaoning Province Key Laboratory of Forensic Bio-evidence Sciences, Shenyang, China
- China Medical University Centre of Forensic Investigation, Shenyang, China
| | - Shu Li
- Department of Forensic Analytical Toxicology, School of Forensic Medicine, China Medical University, Shenyang, China
- Liaoning Province Key Laboratory of Forensic Bio-evidence Sciences, Shenyang, China
- China Medical University Centre of Forensic Investigation, Shenyang, China
| | - Siman Wang
- Department of Forensic Analytical Toxicology, School of Forensic Medicine, China Medical University, Shenyang, China
- Liaoning Province Key Laboratory of Forensic Bio-evidence Sciences, Shenyang, China
- China Medical University Centre of Forensic Investigation, Shenyang, China
| | - Xiafang Wu
- Department of Forensic Analytical Toxicology, School of Forensic Medicine, China Medical University, Shenyang, China
- Liaoning Province Key Laboratory of Forensic Bio-evidence Sciences, Shenyang, China
- China Medical University Centre of Forensic Investigation, Shenyang, China
| | - Yingyu Liu
- Department of Forensic Analytical Toxicology, School of Forensic Medicine, China Medical University, Shenyang, China
- Liaoning Province Key Laboratory of Forensic Bio-evidence Sciences, Shenyang, China
- China Medical University Centre of Forensic Investigation, Shenyang, China
| | - Weiyang Yu
- Department of Forensic Analytical Toxicology, School of Forensic Medicine, China Medical University, Shenyang, China
- Liaoning Province Key Laboratory of Forensic Bio-evidence Sciences, Shenyang, China
- China Medical University Centre of Forensic Investigation, Shenyang, China
| | - Yijun Wang
- Department of Forensic Analytical Toxicology, School of Forensic Medicine, China Medical University, Shenyang, China
- Liaoning Province Key Laboratory of Forensic Bio-evidence Sciences, Shenyang, China
- China Medical University Centre of Forensic Investigation, Shenyang, China
| | - Yong Tang
- International Joint Research Centre on Purinergic Signalling/Key Laboratory of Acupuncture for Senile Disease (Chengdu University of TCM), Ministry of Education/School of Health and Rehabilitation, Chengdu University of Traditional Chinese Medicine/Acupuncture and Chronobiology Key Laboratory of Sichuan Province, Chengdu, China
| | - Maosheng Xia
- Department of Orthopaedics, The First Hospital, China Medical University, Shenyang, China.
| | - Baoman Li
- Department of Forensic Analytical Toxicology, School of Forensic Medicine, China Medical University, Shenyang, China.
- Liaoning Province Key Laboratory of Forensic Bio-evidence Sciences, Shenyang, China.
- China Medical University Centre of Forensic Investigation, Shenyang, China.
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7
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Ran Y, Yin S, Xie P, Liu Y, Wang Y, Yin Z. ICAM-1 targeted and ROS-responsive nanoparticles for the treatment of acute lung injury. NANOSCALE 2024; 16:1983-1998. [PMID: 38189459 DOI: 10.1039/d3nr04401g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Acute lung injury (ALI) is an inflammatory disease caused by multiple factors such as infection, trauma, and chemicals. Without effective intervention during the early stages, it usually quickly progresses to acute respiratory distress syndrome (ARDS). Since ordinary pharmaceutical preparations cannot precisely target the lungs, their clinical application is limited. In response, we constructed a γ3 peptide-decorated and ROS-responsive nanoparticle system encapsulating therapeutic dexamethasone (Dex/PSB-γ3 NPs). In vitro, Dex/PSB-γ3 NPs had rapid H2O2 responsiveness, low cytotoxicity, and strong intracellular ROS removal capacity. In a mouse model of ALI, Dex/PSB-γ3 NPs accumulated at the injured lung rapidly, alleviating pulmonary edema and cytokine levels significantly. The modification of NPs by γ3 peptide achieved highly specific positioning of NPs in the inflammatory area. The ROS-responsive release mechanism ensured the rapid release of therapeutic dexamethasone at the inflammatory site. This combined approach improves treatment accuracy, and drug bioavailability, and effectively inhibits inflammation progression. Our study could effectively reduce the risk of ALI progressing to ARDS and hold potential for the early treatment of ALI.
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Affiliation(s)
- Yu Ran
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| | - Shanmei Yin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| | - Pei Xie
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
- Co-Construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, Shaanxi University of Chinese Medicine, Xianyang 712038, China
| | - Yaxue Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| | - Ying Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
- School of Pharmacy, Chengdu University, Chengdu, 610106, China
| | - Zongning Yin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
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8
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Khadka S, Dziadowicz SA, Xu X, Wang L, Hu G, Busada JT. Endogenous glucocorticoids are required for normal macrophage activation and gastric Helicobacter pylori immunity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.14.575574. [PMID: 38293225 PMCID: PMC10827053 DOI: 10.1101/2024.01.14.575574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Glucocorticoids are steroid hormones well-known for their potent anti-inflammatory effects. However, their immunomodulatory properties are multifaceted. Increasing evidence suggests that glucocorticoid signaling promotes effective immunity and that disruption of glucocorticoid signaling impairs immune function. In this study, we conditionally deleted the glucocorticoid receptor (GR) in the myeloid lineage using the LysM-Cre driver (myGRKO). We examined the impact on macrophage activation and gastric immune responses to Helicobacter pylori , the best-known risk factor of gastric cancer. Our results indicate that compared to WT, GRKO macrophages exhibited higher expression of proinflammatory genes in steroid-free conditions. However, when challenged in vivo, GRKO macrophages exhibited aberrant chromatin landscapes and impaired proinflammatory gene expression profiles. Moreover, gastric colonization with Helicobacter revealed impaired gastric immune responses and reduced T cell recruitment in myGRKO mice. As a result, myGRKO mice were protected from atrophic gastritis and pyloric metaplasia development. These results demonstrate a dual role for glucocorticoid signaling in preparing macrophages to respond to bacterial infection but limiting their pathogenic activation. In addition, our results support that macrophages are critical for gastric anti- Helicobacter immunity.
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9
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Kessler RR, Schiml PA, McGraw SM, Tomlin EN, Hoeferlin MJ, Deak T, Hennessy MB. Examination of the role of adrenergic receptor stimulation in the sensitization of neuroinflammatory-based depressive-like behavior in isolated Guinea pig pups. Stress 2023; 26:2239366. [PMID: 37529896 PMCID: PMC10421631 DOI: 10.1080/10253890.2023.2239366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 07/17/2023] [Indexed: 08/03/2023] Open
Abstract
Early-life attachment disruption appears to sensitize neuroinflammatory signaling to increase later vulnerability for stress-related mental disorders, including depression. How stress initiates this process is unknown, but studies with adult rats and mice suggest sympathetic nervous system activation and/or cortisol elevations during the early stress are key. Guinea pig pups isolated from their mothers exhibit an initial active behavioral phase characterized by anxiety-like vocalizing. This is followed by inflammatory-dependent depressive-like behavior and fever that sensitize on repeated isolation. Using strategies that have been successful in adult studies, we assessed whether sympathetic nervous system activity and cortisol contributed to the sensitization process in guinea pig pups. In Experiment 1, the adrenergic agonist ephedrine (3 or 10 mg/kg), either alone or with cortisol (2.5 mg/kg), did not increase depressive-like behavior or fever during initial isolation the following day as might have been expected to if this stimulation was sufficient to account for the sensitization process. In Experiment 2, both depressive-like behavior and fever sensitized with repeated isolation, but beta-adrenergic receptor blockade with propranolol (10 or 20 mg/kg) did not affect either of these responses or their sensitization. The high dose of propranolol did, however, reduce vocalizing. These results suggest sympathetic nervous system activation is neither necessary nor sufficient to induce the presumptive neuroinflammatory signaling underlying sensitization of depressive-like behavioral or febrile responses in developing guinea pigs. Thus, processes mediating sensitization of neuroinflammatory-based depressive-like behavior following early-life attachment disruption in this model appear to differ from those previously found to underlie neuroinflammatory priming in adults.
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Affiliation(s)
- Rachel R. Kessler
- Department of Psychology, Wright State University, Dayton OH, 45435, United States
| | - Patricia A. Schiml
- Department of Psychology, Wright State University, Dayton OH, 45435, United States
| | - Sean M. McGraw
- Department of Psychology, Wright State University, Dayton OH, 45435, United States
| | - Erin N. Tomlin
- Department of Psychology, Wright State University, Dayton OH, 45435, United States
| | - Mikayla J. Hoeferlin
- Department of Psychology, Wright State University, Dayton OH, 45435, United States
| | - Terrence Deak
- Behavioral Neuroscience Program, Department of Psychology, Binghamton University, Binghamton, NY 13902, United States
| | - Michael B. Hennessy
- Department of Psychology, Wright State University, Dayton OH, 45435, United States
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10
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Jurcau A, Andronie-Cioara FL, Nistor-Cseppento DC, Pascalau N, Rus M, Vasca E, Jurcau MC. The Involvement of Neuroinflammation in the Onset and Progression of Parkinson's Disease. Int J Mol Sci 2023; 24:14582. [PMID: 37834030 PMCID: PMC10573049 DOI: 10.3390/ijms241914582] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 09/22/2023] [Accepted: 09/24/2023] [Indexed: 10/15/2023] Open
Abstract
Parkinson's disease is a neurodegenerative disease exhibiting the fastest growth in incidence in recent years. As with most neurodegenerative diseases, the pathophysiology is incompletely elucidated, but compelling evidence implicates inflammation, both in the central nervous system and in the periphery, in the initiation and progression of the disease, although it is not yet clear what triggers this inflammatory response and where it begins. Gut dysbiosis seems to be a likely candidate for the initiation of the systemic inflammation. The therapies in current use provide only symptomatic relief, but do not interfere with the disease progression. Nonetheless, animal models have shown promising results with therapies that target various vicious neuroinflammatory cascades. Translating these therapeutic strategies into clinical trials is still in its infancy, and a series of issues, such as the exact timing, identifying biomarkers able to identify Parkinson's disease in early and pre-symptomatic stages, or the proper indications of genetic testing in the population at large, will need to be settled in future guidelines.
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Affiliation(s)
- Anamaria Jurcau
- Department of Psycho-Neuroscience and Rehabilitation, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania; (A.J.); (D.C.N.-C.)
| | - Felicia Liana Andronie-Cioara
- Department of Psycho-Neuroscience and Rehabilitation, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania; (A.J.); (D.C.N.-C.)
| | - Delia Carmen Nistor-Cseppento
- Department of Psycho-Neuroscience and Rehabilitation, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania; (A.J.); (D.C.N.-C.)
| | - Nicoleta Pascalau
- Department of Psycho-Neuroscience and Rehabilitation, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania; (A.J.); (D.C.N.-C.)
| | - Marius Rus
- Department of Medical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410087 Oradea, Romania
| | - Elisabeta Vasca
- Department of Oral Rehabilitation, Faculty of Medicine “Vasile Goldis” Arad, 310025 Arad, Romania
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11
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Tapp ZM, Ren C, Palmer K, Kumar J, Atluri RR, Fitzgerald J, Velasquez J, Godbout J, Sheridan J, Kokiko-Cochran ON. Divergent Spatial Learning, Enhanced Neuronal Transcription, and Blood-Brain Barrier Disruption Develop During Recovery from Post-Injury Sleep Fragmentation. Neurotrauma Rep 2023; 4:613-626. [PMID: 37752925 PMCID: PMC10518692 DOI: 10.1089/neur.2023.0018] [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] [Indexed: 09/28/2023] Open
Abstract
Traumatic brain injury (TBI) causes pathophysiology that may significantly decrease quality of life over time. A major propagator of this response is chronic, maladaptive neuroinflammation, which can be exacerbated by stressors such as sleep fragmentation (SF). This study determined whether post-TBI SF had lasting behavioral and inflammatory effects even with a period of recovery. To test this, male and female mice received a moderate lateral fluid percussion TBI or sham surgery. Half the mice were left undisturbed, and half were exposed to daily SF for 30 days. All mice were then undisturbed between 30 and 60 days post-injury (DPI), allowing mice to recover from SF (SF-R). SF-R did not impair global Barnes maze performance. Nonetheless, TBI SF-R mice displayed retrogression in latency to reach the goal box within testing days. These nuanced behavioral changes in TBI SF-R mice were associated with enhanced expression of neuronal processing/signaling genes and indicators of blood-brain barrier (BBB) dysfunction. Aquaporin-4 (AQP4) expression, a marker of BBB integrity, was differentially altered by TBI and TBI SF-R. For example, TBI enhanced cortical AQP4 whereas TBI SF-R mice had the lowest cortical expression of perivascular AQP4, dysregulated AQP4 polarization, and the highest number of CD45+ cells in the ipsilateral cortex. Altogether, post-TBI SF caused lasting, divergent behavioral responses associated with enhanced expression of neuronal transcription and BBB disruption even after a period of recovery from SF. Understanding lasting impacts from post-TBI stressors can better inform both acute and chronic post-injury care to improve long-term outcome post-TBI.
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Affiliation(s)
- Zoe M. Tapp
- Department of Neuroscience, College of Medicine, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
| | - Cindy Ren
- Department of Neuroscience, College of Medicine, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
| | - Kelsey Palmer
- Department of Neuroscience, College of Medicine, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
| | - Julia Kumar
- Department of Neuroscience, College of Medicine, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
| | - Ravitej R. Atluri
- Department of Neuroscience, College of Medicine, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
| | - Julie Fitzgerald
- Department of Neuroscience, College of Medicine, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
| | - John Velasquez
- Department of Neuroscience, College of Medicine, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
| | - Jonathan Godbout
- Department of Neuroscience, College of Medicine, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
- Chronic Brain Injury Program, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
- Institute for Behavioral Medicine Research, Neurological Institute, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
| | - John Sheridan
- Department of Neuroscience, College of Medicine, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
- Chronic Brain Injury Program, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
- Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
| | - Olga N. Kokiko-Cochran
- Department of Neuroscience, College of Medicine, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
- Chronic Brain Injury Program, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
- Institute for Behavioral Medicine Research, Neurological Institute, College of Dentistry, The Ohio State University, Columbus, Ohio, USA
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12
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Cheng Y, Chen H, Duan P, Zhang H, Yu Y, Yu J, Yu Z, Zheng L, Ye X, Pan Z. Early depletion of M1 macrophages retards the progression of glucocorticoid-associated osteonecrosis of the femoral head. Int Immunopharmacol 2023; 122:110639. [PMID: 37481850 DOI: 10.1016/j.intimp.2023.110639] [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: 01/30/2023] [Revised: 07/09/2023] [Accepted: 07/10/2023] [Indexed: 07/25/2023]
Abstract
Inflammation stands as a pivotal factor in the pathogenesis of glucocorticoid-associated osteonecrosis of the femoral head (GA-ONFH). However, the vital role played by M1 macrophages, the principal constituents of the inflammatory process, remains largely underexplored. In this study, we employed reverse transcription-quantitative polymerase chain Reaction (RT-PCR), western blot, and flow cytometry to assess the impact of M1-conditioned medium on cultures of mouse bone marrow-derived mesenchymal stem cells (BMSCs) and Murine Long bone Osteocyte-Y4 (MLO-Y4) in vitro. Moreover, we quantified the levels of inflammatory cytokines in the M1-conditioned medium through the employment of an enzyme-linked immunosorbent assay (ELISA). For in vivo analysis, we examined M1 macrophages and investigated the NF-kB signaling pathway in specimens obtained from the femoral heads of animals and humans. We found that the number of M1 macrophages in the femoral head of GA-ONFH patients grew significantly, and in the mice remarkably increase, maintaining high levels in the intramedullary. In vitro, the M1 macrophage-conditioned medium elicited apoptosis in BMSCs and MLO-Y4 cells, shedding light on the intricate interplay between macrophages and these cell types. The presence of TNF-α within the M1-conditioned medium activated the NF-κB pathway, providing mechanistic insight into the apoptotic induction. Moreover, employing a robust rat macrophage clearance model and GA-ONFH model, we demonstrated a remarkable attenuation in TNF-α expression and NF-kB signaling subsequent to macrophage clearance. This pronounced reduction engenders diminished cellular apoptosis and engenders a decelerated trajectory of GA-ONFH progression. In conclusion, our study reveals the crucial involvement of M1 macrophages in the pathogenesis of GA-ONFH, highlighting their indispensable role in disease progression. Furthermore, early clearance emerges as a promising strategy for impeding the development of GA-ONFH.
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Affiliation(s)
- Yannan Cheng
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China
| | - Hui Chen
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China
| | - Ping Duan
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China
| | - Hao Zhang
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China
| | - Yongle Yu
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China
| | - Jiadong Yu
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China
| | - Zirui Yu
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China
| | - Lin Zheng
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China
| | - Xin Ye
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China
| | - Zhenyu Pan
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China.
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13
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Tret'yakova LV, Kvichansky AA, Barkovskaya ES, Manolova AO, Bolshakov AP, Gulyaeva NV. Ambiguous Contribution of Glucocorticosteroids to Acute Neuroinflammation in the Hippocampus of Rat. Int J Mol Sci 2023; 24:11147. [PMID: 37446324 DOI: 10.3390/ijms241311147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/27/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
Effects of modulation of glucocorticoid and mineralocorticoid receptors (GR and MR, respectively) on acute neuroinflammatory response were studied in the dorsal (DH) and ventral (VH) parts of the hippocampus of male Wistar rats. Local neuroinflammatory response was induced by administration of bacterial lipopolysaccharide (LPS) to the DH. The modulation of GR and MR was performed by dexamethasone (GR activation), mifepristone, and spironolactone (GR and MR inhibition, respectively). Experimental drugs were delivered to the dentate gyrus of the DH bilaterally by stereotaxic injections. Dexamethasone, mifepristone, and spironolactone were administered either alone (basal conditions) or in combination with LPS (neuroinflammatory conditions). Changes in expression levels of neuroinflammation-related genes and morphology of microglia 3 days after intrahippocampal administration of above substances were assessed. Dexamethasone alone induced a weak proinflammatory response in the hippocampal tissue, while neither mifepristone nor spironolactone showed significant effects. During LPS-induced neuroinflammation, GR activation suppressed expression of selected inflammatory genes, though it did not prevent appearance of activated forms of microglia. In contrast to GR activation, GR or MR inhibition had virtually no influence on LPS-induced inflammatory response. The results suggest glucocorticosteroids ambiguously modulate specific aspects of neuroinflammatory response in the hippocampus of rats at molecular and cellular levels.
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Affiliation(s)
- Liya V Tret'yakova
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 117485 Moscow, Russia
| | - Alexey A Kvichansky
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 117485 Moscow, Russia
| | - Ekaterina S Barkovskaya
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 117485 Moscow, Russia
| | - Anna O Manolova
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 117485 Moscow, Russia
| | - Alexey P Bolshakov
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 117485 Moscow, Russia
| | - Natalia V Gulyaeva
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 117485 Moscow, Russia
- Research and Clinical Center for Neuropsychiatry of Moscow Healthcare Department, 115419 Moscow, Russia
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14
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Lutgendorf SK, Zia S, Luo Y, O'Donnell M, van Bokhoven A, Bradley CS, Gallup R, Pierce J, Taple BJ, Naliboff BD, Quentin Clemens J, Kreder KJ, Schrepf A. Early and recent exposure to adversity, TLR-4 stimulated inflammation, and diurnal cortisol in women with interstitial cystitis/bladder pain syndrome: A MAPP research network study. Brain Behav Immun 2023; 111:116-123. [PMID: 37001828 PMCID: PMC10474614 DOI: 10.1016/j.bbi.2023.03.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 03/01/2023] [Accepted: 03/27/2023] [Indexed: 04/13/2023] Open
Abstract
Both early (ELA) and recent life adversity (RLA) have been linked with chronic pain conditions and persistent alterations of neuroendocrine and inflammatory responses. Interstitial Cystitis/Bladder Pain Syndrome (IC/BPS) is a chronic urologic disorder characterized by bladder and/or pelvic pain, and excessive urinary frequency and/or urgency. IC/BPS has been associated with high levels of ELA as well as a distinct inflammatory signature. However, associations between ELA and RLA with inflammatory mechanisms in IC/BPS that might underlie the link between adversity and symptoms have not been examined. Here we investigated ELA and RLA in women with IC/BPS as potential risk factors for inflammatory processes and hypothalamic-pituitaryadrenal (HPA) abnormalities using data from the Multidisciplinary Approach to the Study of Chronic Pelvic Pain (MAPP) Research Network. Women with IC/BPS and healthy controls (n = 154 and 32, respectively) completed surveys, collected salivary cortisol at awakening and bedtime for 3 days, and gave a blood sample which was analyzed for 7 LPS-stimulated cytokines and chemokines (IL-6, TNFα, IL-1β, MIP1α, MCP1, IL-8, and IL-10). Two cytokine/chemokine composites were identified using principal components analysis. Patients with greater exposure to RLA or cumulative ELA and RLA of at least moderate severity showed elevated levels of a composite of all cytokines, adjusting for age, body mass index, and study site. Furthermore, there was a trending relationship between ELA and the pro-inflammatory composite score. Nocturnal cortisol and cortisol slope were not associated with ELA, RLA, or inflammation. The present findings support the importance of adverse events in IC/BPS via a biological mechanism and suggest that ELA and RLA should be assessed as risk factors for inflammation as part of a clinical workup for IC/BPS.
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Affiliation(s)
- Susan K Lutgendorf
- Department of Psychological & Brain Sciences, University of Iowa, Iowa City, IA, USA; Department of Urology, University of Iowa, Iowa City, IA, USA; Department of Obstetrics and Gynecology, University of Iowa, Iowa City, IA, USA.
| | - Sharaf Zia
- Department of Psychological & Brain Sciences, University of Iowa, Iowa City, IA, USA
| | - Yi Luo
- Department of Urology, University of Iowa, Iowa City, IA, USA
| | | | - Adrie van Bokhoven
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Catherine S Bradley
- Department of Obstetrics and Gynecology, University of Iowa, Iowa City, IA, USA
| | - Robert Gallup
- Department of Mathematics, West Chester University, West Chester, PA, USA
| | - Jennifer Pierce
- Department of Anesthesiology, University of Michigan, Ann Arbor, MI, USA
| | - Bayley J Taple
- Department of Preventative Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Bruce D Naliboff
- Department of Medicine David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA, USA
| | | | - Karl J Kreder
- Department of Urology, University of Iowa, Iowa City, IA, USA
| | - Andrew Schrepf
- Department of Anesthesiology, University of Michigan, Ann Arbor, MI, USA
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15
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Sequeira MK, Bolton JL. Stressed Microglia: Neuroendocrine-Neuroimmune Interactions in the Stress Response. Endocrinology 2023; 164:bqad088. [PMID: 37279575 DOI: 10.1210/endocr/bqad088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/22/2023] [Accepted: 06/02/2023] [Indexed: 06/08/2023]
Abstract
Stressful life experiences are associated with the development of neuropsychiatric disorders like depression. Emerging evidence indicates that microglia, the specialized resident macrophages of the brain, may be a key mediator of the relationship between psychosocial stressor exposure and adaptive or maladaptive responses at the level of synaptic, circuit, and neuroimmune alterations. Here, we review current literature regarding how psychosocial stressor exposure changes microglial structure and function, thereby altering behavioral and brain outcomes, with a particular focus on age- and sex-dependent effects. We argue that additional emphasis should be placed in future research on investigating sex differences and the impacts of stressor exposure during sensitive periods of development, as well as going beyond traditional morphological measurements to interrogate microglial function. The bidirectional relationship between microglia and the stress response, particularly the role of microglia in the neuroendocrine control of stress-related circuits, is also an important area for future investigation. Finally, we discuss emerging themes and future directions that point to the possibility of the development of novel therapeutics for stress-related neuropsychiatric disorders.
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Affiliation(s)
| | - Jessica L Bolton
- Neuroscience Institute, Georgia State University, Atlanta, GA 30303, USA
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16
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Huang Z, Jordan JD, Zhang Q. Early life adversity as a risk factor for cognitive impairment and Alzheimer's disease. Transl Neurodegener 2023; 12:25. [PMID: 37173751 PMCID: PMC10182702 DOI: 10.1186/s40035-023-00355-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 04/13/2023] [Indexed: 05/15/2023] Open
Abstract
Neurological conditions, including cognitive impairment and Alzheimer's disease (AD), impose a huge burden on society, affecting millions of people globally. In addition to genetic factors, recent studies indicate that environmental and experiential factors may contribute to the pathogenesis of these diseases. Early life adversity (ELA) has a profound impact on brain function and health later in life. In rodent models, exposure to ELA results in specific cognitive deficits and aggravated AD pathology. Extensive concerns have been raised regarding the higher risk of developing cognitive impairments in people with a history of ELA. In this review, we scrutinize findings from human and animal studies focusing on the connection of ELA with cognitive impairment and AD. These discoveries suggest that ELA, especially at early postnatal stages, increases susceptibility to cognitive impairment and AD later in life. In terms of mechanisms, ELA could lead to dysregulation of the hypothalamus-pituitary-adrenal axis, altered gut microbiome, persistent inflammation, oligodendrocyte dysfunction, hypomyelination, and aberrant adult hippocampal neurogenesis. Crosstalks among these events may synergistically contribute to cognitive impairment later in life. Additionally, we discuss several interventions that may alleviate adverse consequences of ELA. Further investigation into this crucial area will help improve ELA management and reduce the burden of related neurological conditions.
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Affiliation(s)
- Zhihai Huang
- Department of Neurology, Louisiana State University Health Sciences Center, 1501 Kings Highway, Shreveport, LA, 71103, USA
| | - J Dedrick Jordan
- Department of Neurology, Louisiana State University Health Sciences Center, 1501 Kings Highway, Shreveport, LA, 71103, USA.
| | - Quanguang Zhang
- Department of Neurology, Louisiana State University Health Sciences Center, 1501 Kings Highway, Shreveport, LA, 71103, USA.
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17
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Liu Z, Chen H, Tan C, Zha J, Liu H, Chen G. Activation of CD3+TIM3+ T Cells Contributes to Excessive Inflammatory Response During Glucocorticoid Treatment. Biochem Pharmacol 2023; 212:115551. [PMID: 37044297 DOI: 10.1016/j.bcp.2023.115551] [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: 02/18/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 04/14/2023]
Abstract
Glucocorticoids (GCs) are widely used to treat autoimmune and inflammatory diseases, but recent research has challenged the notion that GCs are universally anti-inflammatory. In this study, we investigated the effects of long-term GC exposure on circulating T cells in a retrospective cohort of 5,476 patients with primary glomerular diseases. Our results revealed that GCs altered the composition pattern of circulating leukocytes and the correlation between circulating lymphocytes and serum cytokines in response to infections, as well as the subsets of CD4+ T cells. Specifically, GCs promoted the loss of CD4+ T cells and increased the proportions of CD3+TIM3+ T cells in response to infections, which correlated with the expression of serum inflammatory cytokines, such as IFNG and IL-10. Using animal models of cecal ligation and puncture, we demonstrated that long-term GC exposure exacerbated apoptosis of CD4+ T cells and cytokine storm during sepsis, which was mechanistically linked to the increase of CD3+TIM3+ T cells. Notably, we found that CD3+TIM3+ T cells expressed high levels of multiple cytokine genes during infections, suggesting a potent role of TIM3 in the regulation of T cell biology. In vitro studies further showed that engagement of anti-TIM3 treatment enhanced the inflammatory activity of CD3+ T cells. Our findings suggest a causal relationship between chronic exposure to GCs and an excessive inflammatory response mediated by T cells during infections, which is, at least partly, driven by dysregulation of CD3+TIM3+ T cells.
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Affiliation(s)
- Zhiwen Liu
- Department of Nephrology, the Second Xiangya Hospital of Central South University, Changsha, China; Hunan Key Laboratory of Kidney Disease and Blood Purification, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Huihui Chen
- Clinical Immunology Research Center of Central South University, Changsha, China; Department of Ophthalmology, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Chongqing Tan
- Department of Pharmacy, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Jie Zha
- Department of Nephrology, the Second Xiangya Hospital of Central South University, Changsha, China; Hunan Key Laboratory of Kidney Disease and Blood Purification, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Hong Liu
- Department of Nephrology, the Second Xiangya Hospital of Central South University, Changsha, China; Hunan Key Laboratory of Kidney Disease and Blood Purification, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Guochun Chen
- Department of Nephrology, the Second Xiangya Hospital of Central South University, Changsha, China; Hunan Key Laboratory of Kidney Disease and Blood Purification, the Second Xiangya Hospital of Central South University, Changsha, China; Clinical Immunology Research Center of Central South University, Changsha, China.
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18
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Ju LS, Morey TE, Seubert CN, Martynyuk AE. Intergenerational Perioperative Neurocognitive Disorder. BIOLOGY 2023; 12:biology12040567. [PMID: 37106766 PMCID: PMC10135810 DOI: 10.3390/biology12040567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/04/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023]
Abstract
Accelerated neurocognitive decline after general anesthesia/surgery, also known as perioperative neurocognitive disorder (PND), is a widely recognized public health problem that may affect millions of patients each year. Advanced age, with its increasing prevalence of heightened stress, inflammation, and neurodegenerative alterations, is a consistent contributing factor to the development of PND. Although a strong homeostatic reserve in young adults makes them more resilient to PND, animal data suggest that young adults with pathophysiological conditions characterized by excessive stress and inflammation may be vulnerable to PND, and this altered phenotype may be passed to future offspring (intergenerational PND). The purpose of this narrative review of data in the literature and the authors' own experimental findings in rodents is to draw attention to the possibility of intergenerational PND, a new phenomenon which, if confirmed in humans, may unravel a big new population that may be affected by parental PND. In particular, we discuss the roles of stress, inflammation, and epigenetic alterations in the development of PND. We also discuss experimental findings that demonstrate the effects of surgery, traumatic brain injury, and the general anesthetic sevoflurane that interact to induce persistent dysregulation of the stress response system, inflammation markers, and behavior in young adult male rats and in their future offspring who have neither trauma nor anesthetic exposure (i.e., an animal model of intergenerational PND).
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Affiliation(s)
- Ling-Sha Ju
- Department of Anesthesiology, College of Medicine, University of Florida, P.O. Box 100254, JHMHC, 1600 SW Archer Road, Gainesville, FL 32610, USA
| | - Timothy E Morey
- Department of Anesthesiology, College of Medicine, University of Florida, P.O. Box 100254, JHMHC, 1600 SW Archer Road, Gainesville, FL 32610, USA
| | - Christoph N Seubert
- Department of Anesthesiology, College of Medicine, University of Florida, P.O. Box 100254, JHMHC, 1600 SW Archer Road, Gainesville, FL 32610, USA
| | - Anatoly E Martynyuk
- Department of Anesthesiology, College of Medicine, University of Florida, P.O. Box 100254, JHMHC, 1600 SW Archer Road, Gainesville, FL 32610, USA
- Brain Institute, College of Medicine, University of Florida, Gainesville, FL 32610, USA
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19
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Li J, Tong L, Schock BC, Ji LL. Post-traumatic Stress Disorder: Focus on Neuroinflammation. Mol Neurobiol 2023; 60:3963-3978. [PMID: 37004607 DOI: 10.1007/s12035-023-03320-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 03/09/2023] [Indexed: 04/04/2023]
Abstract
Post-traumatic stress disorder (PTSD), gaining increasing attention, is a multifaceted psychiatric disorder that occurs following a stressful or traumatic event or series of events. Recently, several studies showed a close relationship between PTSD and neuroinflammation. Neuroinflammation, a defense response of the nervous system, is associated with the activation of neuroimmune cells such as microglia and astrocytes and with changes in inflammatory markers. In this review, we first analyzed the relationship between neuroinflammation and PTSD: the effect of stress-derived activation of the hypothalamic-pituitary-adrenal (HPA) axis on the main immune cells in the brain and the effect of stimulated immune cells in the brain on the HPA axis. We then summarize the alteration of inflammatory markers in brain regions related to PTSD. Astrocytes are neural parenchymal cells that protect neurons by regulating the ionic microenvironment around neurons. Microglia are macrophages of the brain that coordinate the immunological response. Recent studies on these two cell types provided new insight into neuroinflammation in PTSD. These contribute to promoting comprehension of neuroinflammation, which plays a pivotal role in the pathogenesis of PTSD.
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Affiliation(s)
- Jimeng Li
- Department of 2nd Clinical College, China Medical University, Shenyang, Liaoning, China
| | - Lei Tong
- Department of Anatomy, College of Basic Sciences, China Medical University, Shenyang, Liaoning, China
| | - Bettina C Schock
- The Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast Faculty of Medicine Health and Life Sciences, Belfast, UK
| | - Li-Li Ji
- Department of Anatomy, College of Basic Sciences, China Medical University, Shenyang, Liaoning, China.
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20
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Nikbakhtzadeh M, Ranjbar H, Moradbeygi K, Zahedi E, Bayat M, Soti M, Shabani M. Cross-talk between the HPA axis and addiction-related regions in stressful situations. Heliyon 2023; 9:e15525. [PMID: 37151697 PMCID: PMC10161713 DOI: 10.1016/j.heliyon.2023.e15525] [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: 10/17/2022] [Revised: 04/04/2023] [Accepted: 04/12/2023] [Indexed: 05/09/2023] Open
Abstract
Addiction is a worldwide problem that has a negative impact on society by imposing significant costs on health care, public security, and the deactivation of the community economic cycle. Stress is an important risk factor in the development of addiction and relapse vulnerability. Here we review studies that have demonstrated the diverse roles of stress in addiction. Term searches were conducted manually in important reference journals as well as in the Google Scholar and PubMed databases, between 2010 and 2022. In each section of this narrative review, an effort has been made to use pertinent sources. First, we will provide an overview of changes in the Hypothalamus-Pituitary-Adrenal (HPA) axis component following stress, which impact reward-related regions including the ventral tegmental area (VTA) and nucleus accumbens (NAc). Then we will focus on internal factors altered by stress and their effects on drug addiction vulnerability. We conclude that alterations in neuro-inflammatory, neurotrophic, and neurotransmitter factors following stress pathways can impact related mechanisms on craving and relapse susceptibility.
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Affiliation(s)
- Marjan Nikbakhtzadeh
- Department of Physiology, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Hoda Ranjbar
- Neuroscience Research Center of Kerman, Institute of Neuropharmacology, Kerman University of Medical Science, Kerman, Iran
| | | | - Elham Zahedi
- Department of Physiology, School of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Mahnaz Bayat
- Clinical Neurology Research Centre, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Monavareh Soti
- Neuroscience Research Center of Kerman, Institute of Neuropharmacology, Kerman University of Medical Science, Kerman, Iran
- Corresponding author. Neuroscience Research Center, Neuropharmacology institute, Kerman University of Medical Sciences, Kerman, Postal Code: 76198-13159, Iran.
| | - Mohammad Shabani
- Neuroscience Research Center of Kerman, Institute of Neuropharmacology, Kerman University of Medical Science, Kerman, Iran
- Corresponding author. Neuroscience Research Center, Neuropharmacology institute, Kerman University of Medical Sciences, Kerman, Postal Code: 76198-13159, Iran.
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21
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Zheng A, Waterkotte T, Debele T, Dion G, Park Y. Biodegradable dexamethasone polymer capsule for long-term release. KOREAN J CHEM ENG 2023. [DOI: 10.1007/s11814-022-1358-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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22
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Solarz A, Majcher-Maślanka I, Kryst J, Chocyk A. Early-life stress affects peripheral, blood-brain barrier, and brain responses to immune challenge in juvenile and adult rats. Brain Behav Immun 2023; 108:1-15. [PMID: 36400335 DOI: 10.1016/j.bbi.2022.11.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 10/21/2022] [Accepted: 11/12/2022] [Indexed: 11/17/2022] Open
Abstract
Early-life stress (ELS) may affect brain maturation and neuroimmune interactions and, consequently, the inflammatory response to subsequent environmental factors later in life. Recently, the coexistence of blood-brain barrier (BBB) dysfunction and inflammation has been implicated in the etiology and progression of mental and/or neurodegenerative diseases. There are sex differences in the prevalence and outcomes of these disorders. The number of studies reporting the effects of ELS and sex on BBB functioning and neuroinflammatory processes in response to immune challenge is very limited, and the data are inconsistent. In the present study, we examined whether ELS, based on the maternal separation (MS) paradigm in rats, can condition male and female subjects to subsequent lipopolysaccharide (LPS)-induced immune challenge in juvenility or adulthood. Twenty-four hours after acute LPS injection, serum proinflammatory cytokines were measured, and BBB permeability in the medial prefrontal cortex (mPFC) and hippocampus (HP) was evaluated. Additionally, the mRNA expression of neuroinflammatory markers and BBB-related genes was also studied. We found that a single LPS challenge induced a proinflammatory response both in the periphery and in the mPFC and HP and increased BBB permeability in a sex-dependent fashion. Moreover, MS enhanced the neuroinflammatory response to LPS challenge in males (especially juveniles), whereas MS females showed no difference or a blunted central response to LPS compared with control females, mainly during adulthood. These results suggest that ELS may precondition individuals to subsequent environmental factors later in life in a sex-specific manner and potentially determine their susceptibility or resilience to mental and/or neurodegenerative diseases.
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Affiliation(s)
- Anna Solarz
- Department of Pharmacology, Laboratory of Pharmacology and Brain Biostructure, Maj Institute of Pharmacology, Polish Academy of Sciences, 31-343 Kraków, Smętna Street 12, Poland
| | - Iwona Majcher-Maślanka
- Department of Pharmacology, Laboratory of Pharmacology and Brain Biostructure, Maj Institute of Pharmacology, Polish Academy of Sciences, 31-343 Kraków, Smętna Street 12, Poland
| | - Joanna Kryst
- Department of Pharmacology, Laboratory of Pharmacology and Brain Biostructure, Maj Institute of Pharmacology, Polish Academy of Sciences, 31-343 Kraków, Smętna Street 12, Poland; Department of Chemistry and Biochemistry, Institute for Basics Sciences, Faculty of Physiotherapy, University of Physical Education, Jana Pawła II Av. 78, 31-571 Kraków, Poland
| | - Agnieszka Chocyk
- Department of Pharmacology, Laboratory of Pharmacology and Brain Biostructure, Maj Institute of Pharmacology, Polish Academy of Sciences, 31-343 Kraków, Smętna Street 12, Poland.
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23
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Bruscoli S, Puzzovio PG, Zaimi M, Tiligada K, Levi-Schaffer F, Riccardi C. Glucocorticoids and COVID-19. Pharmacol Res 2022; 185:106511. [PMID: 36243331 PMCID: PMC9556882 DOI: 10.1016/j.phrs.2022.106511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/10/2022] [Accepted: 10/10/2022] [Indexed: 12/15/2022]
Abstract
Coronavirus Disease 19 (COVID-19) is associated with high morbidity and mortality rates globally, representing the greatest health and economic challenge today. Several drugs are currently approved for the treatment of COVID-19. Among these, glucocorticoids (GCs) have received particular attention due to their anti-inflammatory and immunosuppressive effects. In fact, GC are widely used in current clinical practice to treat inflammatory, allergic and autoimmune diseases. Major mechanisms of GC action include inhibition of innate and adaptive immune activity. In particular, an important role is played by the inhibition of pro-inflammatory cytokines and chemokines, and the induction of proteins with anti-inflammatory activity. Overall, as indicated by various national and international regulatory agencies, GCs are recommended for the treatment of COVID-19 in patients requiring oxygen therapy, with or without mechanical ventilation. Regarding the use of GCs for the COVID-19 treatment of non-hospitalized patients at an early stage of the disease, many controversial studies have been reported and regulatory agencies have not recommended their use. The decision to start GC therapy should be based not only on the severity of COVID-19 disease, but also on careful considerations of the benefit/risk profile in individual patients, including monitoring of adverse events. In this review we summarize the effects of GCs on the major cellular and molecular components of the inflammatory/immune system, the benefits and the adverse common reactions in the treatment of inflammatory/autoimmune diseases, as well as in the management of COVID-19.
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Affiliation(s)
- Stefano Bruscoli
- Department of Medicine and Surgery, Section of Pharmacology, University of Perugia, Perugia, Italy
| | - Pier Giorgio Puzzovio
- Pharmacology and Experimental Therapeutics Unit, School of Pharmacy, Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Maria Zaimi
- Department of Pharmacology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Katerina Tiligada
- Pharmacology and Experimental Therapeutics Unit, School of Pharmacy, Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel; Department of Pharmacology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Francesca Levi-Schaffer
- Pharmacology and Experimental Therapeutics Unit, School of Pharmacy, Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Carlo Riccardi
- Department of Medicine and Surgery, Section of Pharmacology, University of Perugia, Perugia, Italy.
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24
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Komoltsev IG, Frankevich SO, Shirobokova NI, Kostyunina OV, Volkova AA, Bashkatova DA, Shalneva DV, Kostrukov PA, Salyp OY, Novikova MR, Gulyaeva NV. Acute Corticosterone Elevation and Immediate Seizure Expression in Rats Depends on the Time of the Day When Lateral Fluid Percussion Brain Injury Has Been Applied. J EVOL BIOCHEM PHYS+ 2022. [DOI: 10.1134/s0022093022060345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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25
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El-Saber Batiha G, Al-Gareeb AI, Saad HM, Al-kuraishy HM. COVID-19 and corticosteroids: a narrative review. Inflammopharmacology 2022; 30:1189-1205. [PMID: 35562628 PMCID: PMC9106274 DOI: 10.1007/s10787-022-00987-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 03/30/2022] [Indexed: 02/06/2023]
Abstract
It has been reported that corticosteroid therapy was effective in the management of severe acute respiratory syndrome (SARS) and the Middle East Respiratory Syndrome (MERS), and recently in coronavirus disease 2019 (COVID-19). Corticosteroids are potent anti-inflammatory drugs that mitigate the risk of acute respiratory distress syndrome (ARDS) in COVID-19 and other viral pneumonia, despite a reduction of viral clearance; corticosteroids inhibit the development of cytokine storm and multi-organ damage. The risk-benefit ratio should be assessed for critical COVID-19 patients. In conclusion, corticosteroid therapy is an effective way in the management of COVID-19, it reduces the risk of complications primarily acute lung injury and the development of ARDS. Besides, corticosteroid therapy mainly dexamethasone and methylprednisolone are effective in reducing the severity of COVID-19 and associated comorbidities such as chronic obstructive pulmonary diseases (COPD), rheumatoid arthritis, and inflammatory bowel disease (IBD).
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Affiliation(s)
- Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511 AlBeheira Egypt
| | - Ali I. Al-Gareeb
- Department of Clinical Pharmacology and Medicine, College of Medicine, Mustansiriyiah University, Baghdad, Iraq
| | - Hebatallah M. Saad
- Department of Pathology, Faculty of Veterinary Medicine, Matrouh University, Matrouh, 51744 Matrouh Egypt
| | - Hayder M. Al-kuraishy
- Department of Clinical Pharmacology and Medicine, College of Medicine, Mustansiriyiah University, Baghdad, Iraq
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26
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Miyata S, Ishino Y, Shimizu S, Tohyama M. Involvement of inflammatory responses in the brain to the onset of major depressive disorder due to stress exposure. Front Aging Neurosci 2022; 14:934346. [PMID: 35936767 PMCID: PMC9354609 DOI: 10.3389/fnagi.2022.934346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 06/27/2022] [Indexed: 11/25/2022] Open
Abstract
Major depressive disorder (MDD) is a multifactorial disease affected by several environmental factors. Although several potential onset hypotheses have been identified, the molecular mechanisms underlying the pathogenesis of this disorder remain unclear. Several recent studies have suggested that among many environmental factors, inflammation and immune abnormalities in the brain or the peripheral tissues are associated with the onset of MDDs. Furthermore, several stress-related hypotheses have been proposed to explain the onset of MDDs. Thus, inflammation or immune abnormalities can be considered stress responses that occur within the brain or other tissues and are regarded as one of the mechanisms underlying the stress hypothesis of MDDs. Therefore, we introduce several current advances in inflammation studies in the brain that might be related to the pathophysiology of MDD due to stress exposure in this review.
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Affiliation(s)
- Shingo Miyata
- Division of Molecular Brain Science, Research Institute of Traditional Asian Medicine, Kindai University, Osaka, Japan
- *Correspondence: Shingo Miyata
| | - Yugo Ishino
- Division of Molecular Brain Science, Research Institute of Traditional Asian Medicine, Kindai University, Osaka, Japan
| | - Shoko Shimizu
- Division of Molecular Brain Science, Research Institute of Traditional Asian Medicine, Kindai University, Osaka, Japan
| | - Masaya Tohyama
- Division of Molecular Brain Science, Research Institute of Traditional Asian Medicine, Kindai University, Osaka, Japan
- Osaka Prefectural Hospital Organization, Osaka, Japan
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27
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Komoltsev IG, Gulyaeva NV. Brain Trauma, Glucocorticoids and Neuroinflammation: Dangerous Liaisons for the Hippocampus. Biomedicines 2022; 10:biomedicines10051139. [PMID: 35625876 PMCID: PMC9138485 DOI: 10.3390/biomedicines10051139] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 04/30/2022] [Accepted: 05/13/2022] [Indexed: 12/02/2022] Open
Abstract
Glucocorticoid-dependent mechanisms of inflammation-mediated distant hippocampal damage are discussed with a focus on the consequences of traumatic brain injury. The effects of glucocorticoids on specific neuronal populations in the hippocampus depend on their concentration, duration of exposure and cell type. Previous stress and elevated level of glucocorticoids prior to pro-inflammatory impact, as well as long-term though moderate elevation of glucocorticoids, may inflate pro-inflammatory effects. Glucocorticoid-mediated long-lasting neuronal circuit changes in the hippocampus after brain trauma are involved in late post-traumatic pathology development, such as epilepsy, depression and cognitive impairment. Complex and diverse actions of the hypothalamic–pituitary–adrenal axis on neuroinflammation may be essential for late post-traumatic pathology. These mechanisms are applicable to remote hippocampal damage occurring after other types of focal brain damage (stroke, epilepsy) or central nervous system diseases without obvious focal injury. Thus, the liaisons of excessive glucocorticoids/dysfunctional hypothalamic–pituitary–adrenal axis with neuroinflammation, dangerous to the hippocampus, may be crucial to distant hippocampal damage in many brain diseases. Taking into account that the hippocampus controls both the cognitive functions and the emotional state, further research on potential links between glucocorticoid signaling and inflammatory processes in the brain and respective mechanisms is vital.
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Affiliation(s)
- Ilia G. Komoltsev
- Department of Functional Biochemistry of the Nervous System, Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 117465 Moscow, Russia;
- Moscow Research and Clinical Center for Neuropsychiatry, 115419 Moscow, Russia
| | - Natalia V. Gulyaeva
- Department of Functional Biochemistry of the Nervous System, Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 117465 Moscow, Russia;
- Moscow Research and Clinical Center for Neuropsychiatry, 115419 Moscow, Russia
- Correspondence: ; Tel.: +7-495-9524007 or +7-495-3347020
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28
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VZV Infection of Primary Human Adrenal Cortical Cells Produces a Proinflammatory Environment without Cell Death. Viruses 2022; 14:v14040674. [PMID: 35458404 PMCID: PMC9030771 DOI: 10.3390/v14040674] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 02/04/2023] Open
Abstract
Virus infection of adrenal glands can disrupt secretion of mineralocorticoids, glucocorticoids, and sex hormones from the cortex and catecholamines from the medulla, leading to a constellation of symptoms such as fatigue, dizziness, weight loss, nausea, and muscle and joint pain. Specifically, varicella zoster virus (VZV) can produce bilateral adrenal hemorrhage and adrenal insufficiency during primary infection or following reactivation. However, the mechanisms by which VZV affects the adrenal glands are not well-characterized. Herein, we determined if primary human adrenal cortical cells (HAdCCs) infected with VZV support viral replication and produce a proinflammatory environment. Quantitative PCR showed VZV DNA increasing over time in HAdCCs, yet no cell death was seen at 3 days post-infection by TUNEL staining or Western Blot analysis with PARP and caspase 9 antibodies. Compared to conditioned supernatant from mock-infected cells, supernatant from VZV-infected cells contained significantly elevated IL-6, IL-8, IL-12p70, IL-13, IL-4, and TNF-α. Overall, VZV can productively infect adrenal cortical cells in the absence of cell death, suggesting that these cells may be a potential reservoir for ongoing viral replication and proinflammatory cytokine production, leading to chronic adrenalitis and dysfunction.
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29
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Cheiran Pereira G, Piton E, Moreira Dos Santos B, Ramanzini LG, Muniz Camargo LF, Menezes da Silva R, Bochi GV. Microglia and HPA axis in depression: An overview of participation and relationship. World J Biol Psychiatry 2022; 23:165-182. [PMID: 34100334 DOI: 10.1080/15622975.2021.1939154] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Objectives: This narrative review article provides an overview on the involvement of microglia and the hypothalamic-pituitary-adrenal (HPA) axis in the pathophysiology of depression, as well investigates the mutual relationship between these two entities: how microglial activation can contribute to the dysregulation of the HPA axis, and vice versa.Methods: Relevant studies and reviews already published in the Pubmed electronic database involving the themes microglia, HPA axis and depression were used to meet the objectives.Results: Exposition to stressful events is considered a common factor in the mechanisms proposed to explain the depressive disorder. Stress can activate microglial cells, important immune components of the central nervous system (CNS). Moreover, another system involved in the physiological response to stressors is the hypothalamic-pituitary-adrenal (HPA) axis, the main stress response system responsible for the production of the glucocorticoid hormone (GC). Also, mediators released after microglial activation can stimulate the HPA axis, inducing production of GC. Likewise, high levels of GCs are also capable of activating microglia, generating a vicious cycle.Conclusion: Immune and neuroendocrine systems seems to work in a coordinated manner and that their dysregulation may be involved in the pathophysiology of depression since neuroinflammation and hypercortisolism are often observed in this disorder.
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Affiliation(s)
- Gabriele Cheiran Pereira
- Center of Health Sciences, Department of Physiology and Pharmacology, Federal University of Santa Maria, Santa Maria, Brazil.,Center of Health Sciences, Postgraduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, Brazil
| | - Elisa Piton
- Center of Health Sciences, Department of Physiology and Pharmacology, Federal University of Santa Maria, Santa Maria, Brazil
| | - Brenda Moreira Dos Santos
- Center of Health Sciences, Department of Physiology and Pharmacology, Federal University of Santa Maria, Santa Maria, Brazil.,Center of Health Sciences, Postgraduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, Brazil
| | - Luis Guilherme Ramanzini
- Center of Health Sciences, Department of Physiology and Pharmacology, Federal University of Santa Maria, Santa Maria, Brazil
| | - Luis Fernando Muniz Camargo
- Center of Health Sciences, Department of Physiology and Pharmacology, Federal University of Santa Maria, Santa Maria, Brazil
| | - Rossano Menezes da Silva
- Center of Health Sciences, Department of Physiology and Pharmacology, Federal University of Santa Maria, Santa Maria, Brazil
| | - Guilherme Vargas Bochi
- Center of Health Sciences, Department of Physiology and Pharmacology, Federal University of Santa Maria, Santa Maria, Brazil.,Center of Health Sciences, Postgraduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, Brazil
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30
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Rosin JM, Tretiakov N, Hanniman E, Hampton K, Kurrasch DM. Gestational Bisphenol A Exposure Impacts Embryonic Hypothalamic Microglia Numbers, Ramification, and Phagocytic Cups. Front Neurosci 2022; 16:830399. [PMID: 35250464 PMCID: PMC8894877 DOI: 10.3389/fnins.2022.830399] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/21/2022] [Indexed: 12/20/2022] Open
Abstract
Microglia are a resident population of phagocytic immune cells that reside within the central nervous system (CNS). During gestation, they are highly sensitive to their surrounding environment and can alter their physiology to respond to perceived neural insults, potentially leading to adverse influences on nearby neural progenitors. Given that bisphenol A (BPA) itself can impact developing brains, and that microglia express estrogen receptors to which BPA can bind, here we asked whether fetal microglia are responsive to gestational BPA exposure. Accordingly, we exposed pregnant dams to control or 50 mg of BPA per kg diet during gestation to investigate the impact of maternal BPA on embryonic hypothalamic microglia. Gestational BPA exposure from embryonic day 0.5 (E0.5) to E15.5 resulted in a significant increase in the number of microglia present in the hypothalamus of both male and female embryos. Staining for microglial activation using CD68 showed no change between control and prenatal BPA-exposed microglia, regardless of sex. Similarly, analysis of cultured embryonic brains demonstrated that gestational BPA exposure failed to change the secretion of cytokines or chemokines, regardless of embryo sex or the dose (50 μg of BPA per kg or 50 mg of BPA per kg maternal diet) of BPA treatment. In contrast, live-cell imaging of microglia dynamics in E15.5 control and gestationally-exposed BPA hypothalamic slices showed increased ramification of microglia exposed to BPA. Moreover, live-cell imaging also revealed a significant increase in the number of microglial phagocytic cups visible following exposure to gestational BPA. Together, these results suggest that gestational BPA exposure impacts embryonic hypothalamic microglia, perhaps leading them to alter their interactions with developing neural programs.
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Affiliation(s)
- Jessica M. Rosin
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada
- *Correspondence: Jessica M. Rosin,
| | - Nikol Tretiakov
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Emily Hanniman
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Kiana Hampton
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Deborah M. Kurrasch
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
- Deborah M. Kurrasch,
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31
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Stress induced microglial activation contributes to depression. Pharmacol Res 2022; 179:106145. [DOI: 10.1016/j.phrs.2022.106145] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 02/08/2022] [Accepted: 02/22/2022] [Indexed: 02/06/2023]
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32
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Nagaoka M, Fukami T, Kisui F, Yamada T, Sakai Y, Tashiro K, Ogiso T, Konishi K, Honda S, Hirosawa K, Nakano M, Nakajima M. Arylacetamide deacetylase knockout mice are sensitive to ketoconazole-induced hepatotoxicity and adrenal insufficiency. Biochem Pharmacol 2022; 195:114842. [PMID: 34798123 DOI: 10.1016/j.bcp.2021.114842] [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: 09/01/2021] [Revised: 11/10/2021] [Accepted: 11/13/2021] [Indexed: 11/28/2022]
Abstract
Orally administered ketoconazole may rarely induce liver injury and adrenal insufficiency. A metabolite formed by arylacetamide deacetylase (AADAC)-mediated hydrolysis has been observed in cellulo studies, and it is relevant to ketoconazole-induced cytotoxicity. This study tried to examine the significance of AADAC in ketoconazole-induced toxicity in vivo using Aadac knockout mice. Oral administration of 150 mg/kg ketoconazole resulted in the area under the plasma concentration-time curve values of ketoconazole and N-deacetylketoconazole, a hydrolyzed metabolite of ketoconazole, in Aadac knockout mice being significantly higher and lower than those in wild-type mice, respectively. With the administration of ketoconazole (300 mg/kg/day) for 7 days, Aadac knockout mice showed higher mortality (100%) than wild-type mice (42.9%), and they also showed significantly higher plasma alanine transaminase and lower corticosterone levels, thus representing liver injury and steroidogenesis inhibition, respectively. It was suggested that a higher plasma ketoconazole concentration likely accounts for the inhibition of the synthesis of corticosterone, which has anti-inflammatory effects, in the adrenal gland in Aadac KO mice. In Aadac knockout mice, hepatic mRNA levels of immune- and inflammation-related factors were increased by the administration of 300 mg/kg ketoconazole, and the increase was restored by the replenishment of corticosterone (40 mg/kg, s.c.) along with recoveries of plasma alanine transaminase levels. In conclusion, Aadac defects exacerbate ketoconazole-induced liver injury by inhibiting glucocorticoid synthesis and enhancing the inflammatory response. This in vivo study revealed that the hydrolysis of ketoconazole by AADAC can mitigate ketoconazole-induced toxicities.
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Affiliation(s)
- Mai Nagaoka
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan
| | - Tatsuki Fukami
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan; WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Japan.
| | - Fumiya Kisui
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan
| | - Takuya Yamada
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan
| | - Yoshiyuki Sakai
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan
| | - Kiyomichi Tashiro
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan
| | - Takuo Ogiso
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan
| | - Keigo Konishi
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan
| | - Shiori Honda
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan
| | - Keiya Hirosawa
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan
| | - Masataka Nakano
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan; WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Japan
| | - Miki Nakajima
- Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University, Kanazawa, Japan; WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Japan
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Chen R, Weitzner AS, McKennon LA, Fonken LK. Chronic circadian phase advance in male mice induces depressive-like responses and suppresses neuroimmune activation. Brain Behav Immun Health 2021; 17:100337. [PMID: 34589820 PMCID: PMC8474595 DOI: 10.1016/j.bbih.2021.100337] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 08/21/2021] [Indexed: 12/26/2022] Open
Abstract
Altered working and sleeping schedules during the COVID-19 pandemic likely impact our circadian systems. At the molecular level, clock genes form feedback inhibition loops that control 24-hr oscillations throughout the body. Importantly, core clock genes also regulate microglia, the brain resident immune cell, suggesting circadian regulation of neuroimmune function. To assess whether circadian disruption induces neuroimmune and associated behavioral changes, we mimicked chronic jetlag with a chronic phase advance (CPA) model. 32 adult male C57BL/6J mice underwent 6-hr light phase advance shifts every 3 light/dark cycles (CPA) 14 times or were maintained in standard light/dark cycles (control). CPA mice showed higher behavioral despair but not anhedonia in forced swim and sucrose preferences tests, respectively. Changes in behavior were accompanied by altered hippocampal circadian genes in CPA mice. Further, CPA suppressed expression of brain-derived neurotrophic factor (BDNF) and pro-inflammatory cytokine interleukin-1 beta in the hippocampus. Plasma corticosterone concentrations were elevated by CPA, suggesting that CPA may suppress neuroimmune pathways via glucocorticoids. These results demonstrate that chronic circadian disruption alters mood and neuroimmune function, which may have implications for shift working populations such as frontline health workers.
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Affiliation(s)
- Ruizhuo Chen
- Division of Pharmacology and Toxicology, University of Texas at Austin, Austin, TX, 78712, USA
| | - Aidan S. Weitzner
- Division of Pharmacology and Toxicology, University of Texas at Austin, Austin, TX, 78712, USA
| | - Lara A. McKennon
- Division of Pharmacology and Toxicology, University of Texas at Austin, Austin, TX, 78712, USA
| | - Laura K. Fonken
- Division of Pharmacology and Toxicology, University of Texas at Austin, Austin, TX, 78712, USA
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Reichardt SD, Amouret A, Muzzi C, Vettorazzi S, Tuckermann JP, Lühder F, Reichardt HM. The Role of Glucocorticoids in Inflammatory Diseases. Cells 2021; 10:cells10112921. [PMID: 34831143 PMCID: PMC8616489 DOI: 10.3390/cells10112921] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/19/2021] [Accepted: 10/26/2021] [Indexed: 02/07/2023] Open
Abstract
For more than 70 years, glucocorticoids (GCs) have been a powerful and affordable treatment option for inflammatory diseases. However, their benefits do not come without a cost, since GCs also cause side effects. Therefore, strong efforts are being made to improve their therapeutic index. In this review, we illustrate the mechanisms and target cells of GCs in the pathogenesis and treatment of some of the most frequent inflammatory disorders affecting the central nervous system, the gastrointestinal tract, the lung, and the joints, as well as graft-versus-host disease, which often develops after hematopoietic stem cell transplantation. In addition, an overview is provided of novel approaches aimed at improving GC therapy based on chemical modifications or GC delivery using nanoformulations. GCs remain a topic of highly active scientific research despite being one of the oldest class of drugs in medical use.
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Affiliation(s)
- Sybille D. Reichardt
- Institute for Cellular and Molecular Immunology, University Medical Center Göttingen, 37073 Göttingen, Germany; (S.D.R.); (A.A.); (C.M.)
| | - Agathe Amouret
- Institute for Cellular and Molecular Immunology, University Medical Center Göttingen, 37073 Göttingen, Germany; (S.D.R.); (A.A.); (C.M.)
| | - Chiara Muzzi
- Institute for Cellular and Molecular Immunology, University Medical Center Göttingen, 37073 Göttingen, Germany; (S.D.R.); (A.A.); (C.M.)
| | - Sabine Vettorazzi
- Institute of Comparative Molecular Endocrinology, Ulm University, 89081 Ulm, Germany; (S.V.); (J.P.T.)
| | - Jan P. Tuckermann
- Institute of Comparative Molecular Endocrinology, Ulm University, 89081 Ulm, Germany; (S.V.); (J.P.T.)
| | - Fred Lühder
- Institute for Neuroimmunology and Multiple Sclerosis Research, University Medical Center Göttingen, 37075 Göttingen, Germany;
| | - Holger M. Reichardt
- Institute for Cellular and Molecular Immunology, University Medical Center Göttingen, 37073 Göttingen, Germany; (S.D.R.); (A.A.); (C.M.)
- Correspondence: ; Tel.: +49-551-3963365
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35
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Glucocorticoid circadian rhythms in immune function. Semin Immunopathol 2021; 44:153-163. [PMID: 34580744 DOI: 10.1007/s00281-021-00889-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 09/01/2021] [Indexed: 01/15/2023]
Abstract
Adrenal glucocorticoid (GC) hormones are important regulators of energy metabolism, brain functions, and the immune system. Their release follows robust diurnal rhythms and GCs themselves serve as entrainment signals for circadian clocks in various tissues. In the clinics, synthetic GC analogues are widely used as immunosuppressive drugs. GC inhibitory effects on the immune system are well documented and include suppression of cytokines and increased immune cell death. However, the circadian dynamics of GC action are often neglected. Synthetic GC medications fail to mimic complex GC natural rhythms. Several recent publications have shown that endogenous GCs and their daily concentration rhythms prepare the immune system to face anticipated environmental threats. That includes migration patterns that direct specific cell population to organs and tissues best exemplified by the rhythmic expression of chemoattractants and their receptors. On the other hand, chronotherapeutic approaches may benefit the treatment of immunological diseases such as asthma. In this review, we summarise our current knowledge on the circadian regulation of GCs, their role in innate and adaptive immune functions and the implications for the clinics.
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Schroder JD, de Araújo JB, de Oliveira T, de Moura AB, Fries GR, Quevedo J, Réus GZ, Ignácio ZM. Telomeres: the role of shortening and senescence in major depressive disorder and its therapeutic implications. Rev Neurosci 2021; 33:227-255. [PMID: 34388328 DOI: 10.1515/revneuro-2021-0070] [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] [Received: 05/16/2021] [Accepted: 07/17/2021] [Indexed: 11/15/2022]
Abstract
Major depressive disorder (MDD) is one of the most prevalent and debilitating psychiatric disorders, with a large number of patients not showing an effective therapeutic response to available treatments. Several biopsychosocial factors, such as stress in childhood and throughout life, and factors related to biological aging, may increase the susceptibility to MDD development. Included in critical biological processes related to aging and underlying biological mechanisms associated with MDD is the shortening of telomeres and changes in telomerase activity. This comprehensive review discusses studies that assessed the length of telomeres or telomerase activity and function in peripheral blood cells and brain tissues of MDD individuals. Also, results from in vitro protocols and animal models of stress and depressive-like behaviors were included. We also expand our discussion to include the role of telomere biology as it relates to other relevant biological mechanisms, such as the hypothalamic-pituitary-adrenal (HPA) axis, oxidative stress, inflammation, genetics, and epigenetic changes. In the text and the discussion, conflicting results in the literature were observed, especially considering the size of telomeres in the central nervous system, on which there are different protocols with divergent results in the literature. Finally, the context of this review is considering cell signaling, transcription factors, and neurotransmission, which are involved in MDD and can be underlying to senescence, telomere shortening, and telomerase functions.
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Affiliation(s)
- Jessica Daniela Schroder
- Laboratory of Physiology Pharmacology and Psychopathology, Graduate Program in Biomedical Sciences, Federal University of the Southern Frontier, Rodovia SC 484 - Km 02, Fronteira Sul, Postal Code: 89815-899Chapecó, SC, Brazil
| | - Julia Beatrice de Araújo
- Laboratory of Physiology Pharmacology and Psychopathology, Graduate Program in Biomedical Sciences, Federal University of the Southern Frontier, Rodovia SC 484 - Km 02, Fronteira Sul, Postal Code: 89815-899Chapecó, SC, Brazil
| | - Tacio de Oliveira
- Laboratory of Physiology Pharmacology and Psychopathology, Graduate Program in Biomedical Sciences, Federal University of the Southern Frontier, Rodovia SC 484 - Km 02, Fronteira Sul, Postal Code: 89815-899Chapecó, SC, Brazil
| | - Airam Barbosa de Moura
- Laboratory of Translational Psychiatry, Graduate Program in Health Sciences, University of Southern Santa Catarina, Av. Universitária, 1105 - Bairro Universitário Postal Code: 88806-000Criciúma, SC, Brazil
| | - Gabriel Rodrigo Fries
- Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, Translational Psychiatry Program, The University of Texas Health Science Center at Houston (UTHealth), 1941 East Road BBSB 3142, Houston77054, TX, USA.,Neuroscience Graduate Program, Graduate School of Biomedical Sciences, The University of Texas Health Science Center at Houston (UTHealth), 1941 East Road, BBSB 3142, Houston77054, TX, USA.,Center for Precision Health, School of Biomedical Informatics, The University of Texas Health Science Center at Houston, 1941 East Road, BBSB 3142, Houston77054, TX, USA
| | - João Quevedo
- Laboratory of Translational Psychiatry, Graduate Program in Health Sciences, University of Southern Santa Catarina, Av. Universitária, 1105 - Bairro Universitário Postal Code: 88806-000Criciúma, SC, Brazil.,Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, Translational Psychiatry Program, The University of Texas Health Science Center at Houston (UTHealth), 1941 East Road BBSB 3142, Houston77054, TX, USA.,Neuroscience Graduate Program, Graduate School of Biomedical Sciences, The University of Texas Health Science Center at Houston (UTHealth), 1941 East Road, BBSB 3142, Houston77054, TX, USA.,Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, Center of Excellence on Mood Disorders, The University of Texas Health Science Center at Houston (UTHealth), 1941 East Road, BBSB 3142, Houston77054, TX, USA
| | - Gislaine Zilli Réus
- Laboratory of Translational Psychiatry, Graduate Program in Health Sciences, University of Southern Santa Catarina, Av. Universitária, 1105 - Bairro Universitário Postal Code: 88806-000Criciúma, SC, Brazil
| | - Zuleide Maria Ignácio
- Laboratory of Physiology Pharmacology and Psychopathology, Graduate Program in Biomedical Sciences, Federal University of the Southern Frontier, Rodovia SC 484 - Km 02, Fronteira Sul, Postal Code: 89815-899Chapecó, SC, Brazil.,Laboratory of Translational Psychiatry, Graduate Program in Health Sciences, University of Southern Santa Catarina, Av. Universitária, 1105 - Bairro Universitário Postal Code: 88806-000Criciúma, SC, Brazil
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Bolshakov AP, Tret'yakova LV, Kvichansky AA, Gulyaeva NV. Glucocorticoids: Dr. Jekyll and Mr. Hyde of Hippocampal Neuroinflammation. BIOCHEMISTRY (MOSCOW) 2021; 86:156-167. [PMID: 33832414 DOI: 10.1134/s0006297921020048] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Glucocorticoids (GCs) are an important component of adaptive response of an organism to stressogenic stimuli, a typical stress response being accompanied by elevation of GC levels in blood. Anti-inflammatory effects of GCs are widely used in clinical practice, while pro-inflammatory effects of GCs are believed to underlie neurodegeneration. This is particularly critical for the hippocampus, brain region controlling both cognitive function and emotions/affective behavior, and selectively vulnerable to neuroinflammation and neurodegeneration. The hippocampus is believed to be the main target of GCs since it has the highest density of GC receptors potentially underlying high sensitivity of hippocampal cells to severe stress. In this review, we analyzed the results of studies on pro- and anti-inflammatory effects of GCs in the hippocampus in different models of stress and stress-related pathologies. The available data form a sophisticated, though often quite phenomenological, picture of a modulatory role of GCs in hippocampal neuroinflammation. Understanding the dual nature of GC-mediated effects as well as causes and mechanisms of switching can provide us with effective approaches and tools to avert hippocampal neuroinflammatory events and as a result to prevent and treat brain diseases, both neurological and psychiatric. In the framework of a mechanistic view, we propose a new hypothesis describing how the anti-inflammatory effects of GCs may transform into the pro-inflammatory ones. According to it, long-term elevation of GC level or preliminary treatment with GC triggers accumulation of FKBP51 protein that suppresses activity of GC receptors and activates pro-inflammatory cascades, which, finally, leads to enhanced neuroinflammation.
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Affiliation(s)
- Alexey P Bolshakov
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, 117485, Russia
| | - Liya V Tret'yakova
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, 117485, Russia
| | - Alexey A Kvichansky
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, 117485, Russia
| | - Natalia V Gulyaeva
- Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow, 117485, Russia. .,Research and Clinical Center for Neuropsychiatry of Moscow Healthcare Department, Moscow, 115419, Russia
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Saitoh BY, Tanaka E, Yamamoto N, Kruining DV, Iinuma K, Nakamuta Y, Yamaguchi H, Yamasaki R, Matsumoto K, Kira JI. Early postnatal allergic airway inflammation induces dystrophic microglia leading to excitatory postsynaptic surplus and autism-like behavior. Brain Behav Immun 2021; 95:362-380. [PMID: 33862170 DOI: 10.1016/j.bbi.2021.04.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 04/01/2021] [Accepted: 04/12/2021] [Indexed: 12/11/2022] Open
Abstract
Microglia play key roles in synaptic pruning, which primarily occurs from the postnatal period to adolescence. Synaptic pruning is essential for normal brain development and its impairment is implicated in neuropsychiatric developmental diseases such as autism spectrum disorders (ASD). Recent epidemiological surveys reported a strong link between ASD and atopic/allergic diseases. However, few studies have experimentally investigated the relationship between allergy and ASD-like manifestations, particularly in the early postnatal period, when allergic disorders occur frequently. Therefore, we aimed to characterize how allergic inflammation in the early postnatal period influences microglia and behavior using mouse models of short- and long-term airway allergy. Male mice were immunized by an intraperitoneal injection of aluminum hydroxide and ovalbumin (OVA) or phosphate-buffered saline (control) on postnatal days (P) 3, 7, and 11, followed by intranasal challenge with OVA or phosphate-buffered saline solution twice a week until P30 or P70. In the hippocampus, Iba-1-positive areas, the size of Iba-1-positive microglial cell bodies, and the ramification index of microglia by Sholl analysis were significantly smaller in the OVA group than in the control group on P30 and P70, although Iba-1-positive microglia numbers did not differ significantly between the two groups. In Iba-1-positive cells, postsynaptic density protein 95 (PSD95)-occupied areas and CD68-occupied areas were significantly decreased on P30 and P70, respectively, in the OVA group compared with the control group. Immunoblotting using hippocampal tissues demonstrated that amounts of PSD95, α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor 2, and N-methyl-D-aspartate (NMDA) receptor 2B were significantly increased in the OVA group compared with the control group on P70, and a similar increasing trend for PSD95 was observed on P30. Neurogenesis was not significantly different between the two groups on P30 or P70 by doublecortin immunohistochemistry. The social preference index was significantly lower in the three chamber test and the number of buried marbles was significantly higher in the OVA group than in the control group on P70 but not on P30, whereas locomotion and anxiety were not different between the two groups. Compared with the control group, serum basal corticosterone levels were significantly elevated and hippocampal glucocorticoid receptor (GR) amounts and nuclear GR translocation in microglia, but not in neurons or astrocytes, were significantly decreased in the OVA group on P70 but not on P30. Gene set enrichment analysis of isolated microglia revealed that genes related to immune responses including Toll-like receptor signaling and chemokine signaling pathways, senescence, and glucocorticoid signaling were significantly upregulated in the OVA group compared with the control group on P30 and P70. These findings suggest that early postnatal allergic airway inflammation induces dystrophic microglia that exhibit defective synaptic pruning upon short- and long-term allergen exposure. Furthermore, long-term allergen exposure induced excitatory postsynaptic surplus and ASD-like behavior. Hypothalamo-pituitary-adrenal axis activation and the compensatory downregulation of microglial GR during long-term allergic airway inflammation may also facilitate these changes.
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Affiliation(s)
- Ban-Yu Saitoh
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Eizo Tanaka
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Norio Yamamoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Daan van Kruining
- School for Mental Health and Neuroscience, Department of Psychiatry and Neuropsychology, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, Netherlands
| | - Kyoko Iinuma
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yuko Nakamuta
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroo Yamaguchi
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Ryo Yamasaki
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Koichiro Matsumoto
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Jun-Ichi Kira
- Department of Neurology, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Translational Neuroscience Center, Graduate School of Medicine, and School of Pharmacy at Fukuoka, International University of Health and Welfare, 137-1 Enokizu, Ookawa, Fukuoka 831-8501, Japan; Department of Neurology, Brain and Nerve Center, Fukuoka Central Hospital, International University of Health and Welfare, 2-6-11 Yakuin, Chuo-ku, Fukuoka 810-0022, Japan.
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39
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Milligan Armstrong A, Porter T, Quek H, White A, Haynes J, Jackaman C, Villemagne V, Munyard K, Laws SM, Verdile G, Groth D. Chronic stress and Alzheimer's disease: the interplay between the hypothalamic-pituitary-adrenal axis, genetics and microglia. Biol Rev Camb Philos Soc 2021; 96:2209-2228. [PMID: 34159699 DOI: 10.1111/brv.12750] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 05/12/2021] [Accepted: 05/14/2021] [Indexed: 12/21/2022]
Abstract
Chronic psychosocial stress is increasingly being recognised as a risk factor for sporadic Alzheimer's disease (AD). The hypothalamic-pituitary-adrenal axis (HPA axis) is the major stress response pathway in the body and tightly regulates the production of cortisol, a glucocorticoid hormone. Dysregulation of the HPA axis and increased levels of cortisol are commonly found in AD patients and make a major contribution to the disease process. The underlying mechanisms remain poorly understood. In addition, within the general population there are interindividual differences in sensitivities to glucocorticoid and stress responses, which are thought to be due to a combination of genetic and environmental factors. These differences could ultimately impact an individuals' risk of AD. The purpose of this review is first to summarise the literature describing environmental and genetic factors that can impact an individual's HPA axis reactivity and function and ultimately AD risk. Secondly, we propose a mechanism by which genetic factors that influence HPA axis reactivity may also impact inflammation, a key driver of neurodegeneration. We hypothesize that these factors can mediate glucocorticoid priming of the immune cells of the brain, microglia, to become pro-inflammatory and promote a neurotoxic environment resulting in neurodegeneration. Understanding the underlying molecular mechanisms and identifying these genetic factors has implications for evaluating stress-related risk/progression to neurodegeneration, informing the success of interventions based on stress management and potential risks associated with the common use of glucocorticoids.
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Affiliation(s)
- Ayeisha Milligan Armstrong
- Curtin Health Innovation Research Institute, Curtin University, Kent St, Bentley, WA, 6102, Australia.,Curtin Medical School, Curtin University, Kent St, Bentley, WA, 6102, Australia
| | - Tenielle Porter
- Curtin Medical School, Curtin University, Kent St, Bentley, WA, 6102, Australia.,Collaborative Genomics and Translation Group, School of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia
| | - Hazel Quek
- QIMR Berghofer Medical Institute, 300 Herston Rd, Herston, QLD, Australia
| | - Anthony White
- QIMR Berghofer Medical Institute, 300 Herston Rd, Herston, QLD, Australia
| | - John Haynes
- Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC, 3052, Australia
| | - Connie Jackaman
- Curtin Health Innovation Research Institute, Curtin University, Kent St, Bentley, WA, 6102, Australia.,Curtin Medical School, Curtin University, Kent St, Bentley, WA, 6102, Australia
| | - Victor Villemagne
- School of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia.,The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, 30 Royal Parade, Parkville, VIC, 3052, Australia
| | - Kylie Munyard
- Curtin Health Innovation Research Institute, Curtin University, Kent St, Bentley, WA, 6102, Australia.,Curtin Medical School, Curtin University, Kent St, Bentley, WA, 6102, Australia
| | - Simon M Laws
- Curtin Medical School, Curtin University, Kent St, Bentley, WA, 6102, Australia.,Collaborative Genomics and Translation Group, School of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia
| | - Giuseppe Verdile
- Curtin Health Innovation Research Institute, Curtin University, Kent St, Bentley, WA, 6102, Australia.,Curtin Medical School, Curtin University, Kent St, Bentley, WA, 6102, Australia.,School of Medical and Health Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA, 6027, Australia
| | - David Groth
- Curtin Health Innovation Research Institute, Curtin University, Kent St, Bentley, WA, 6102, Australia.,Curtin Medical School, Curtin University, Kent St, Bentley, WA, 6102, Australia
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40
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Komoltsev IG, Frankevich SO, Shirobokova NI, Volkova AA, Onufriev MV, Moiseeva JV, Novikova MR, Gulyaeva NV. Neuroinflammation and Neuronal Loss in the Hippocampus Are Associated with Immediate Posttraumatic Seizures and Corticosterone Elevation in Rats. Int J Mol Sci 2021; 22:5883. [PMID: 34070933 PMCID: PMC8198836 DOI: 10.3390/ijms22115883] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 12/13/2022] Open
Abstract
Hippocampal damage after traumatic brain injury (TBI) is associated with late posttraumatic conditions, such as depression, cognitive decline and epilepsy. Mechanisms of selective hippocampal damage after TBI are not well understood. In this study, using rat TBI model (lateral fluid percussion cortical injury), we assessed potential association of immediate posttraumatic seizures and changes in corticosterone (CS) levels with neuroinflammation and neuronal cell loss in the hippocampus. Indices of distant hippocampal damage (neurodegeneration and neuroinflammation) were assessed using histological analysis (Nissl staining, Iba-1 immunohistochemical staining) and ELISA (IL-1β and CS) 1, 3, 7 and 14 days after TBI or sham operation in male Wistar rats (n = 146). IL-1β was elevated only in the ipsilateral hippocampus on day 1 after trauma. CS peak was detected on day 3 in blood, the ipsilateral and contralateral hippocampus. Neuronal cell loss in the hippocampus was demonstrated bilaterally; in the ipsilateral hippocampus it started earlier than in the contralateral. Microglial activation was evident in the hippocampus bilaterally on day 7 after TBI. The duration of immediate seizures correlated with CS elevation, levels of IL-1β and neuronal loss in the hippocampus. The data suggest potential association of immediate post-traumatic seizures with CS-dependent neuroinflammation-mediated distant hippocampal damage.
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Affiliation(s)
- Ilia G. Komoltsev
- Laboratory of Functional Biochemistry of the Nervous System, Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 5A Butlerov Str., 117485 Moscow, Russia; (I.G.K.); (S.O.F.); (N.I.S.); (A.A.V.); (M.V.O.); (J.V.M.); (M.R.N.)
- Research and Clinical Center for Neuropsychiatry of Moscow Healthcare Department, 43 Donskaya Str., 115419 Moscow, Russia
| | - Stepan O. Frankevich
- Laboratory of Functional Biochemistry of the Nervous System, Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 5A Butlerov Str., 117485 Moscow, Russia; (I.G.K.); (S.O.F.); (N.I.S.); (A.A.V.); (M.V.O.); (J.V.M.); (M.R.N.)
| | - Natalia I. Shirobokova
- Laboratory of Functional Biochemistry of the Nervous System, Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 5A Butlerov Str., 117485 Moscow, Russia; (I.G.K.); (S.O.F.); (N.I.S.); (A.A.V.); (M.V.O.); (J.V.M.); (M.R.N.)
| | - Aleksandra A. Volkova
- Laboratory of Functional Biochemistry of the Nervous System, Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 5A Butlerov Str., 117485 Moscow, Russia; (I.G.K.); (S.O.F.); (N.I.S.); (A.A.V.); (M.V.O.); (J.V.M.); (M.R.N.)
| | - Mikhail V. Onufriev
- Laboratory of Functional Biochemistry of the Nervous System, Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 5A Butlerov Str., 117485 Moscow, Russia; (I.G.K.); (S.O.F.); (N.I.S.); (A.A.V.); (M.V.O.); (J.V.M.); (M.R.N.)
| | - Julia V. Moiseeva
- Laboratory of Functional Biochemistry of the Nervous System, Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 5A Butlerov Str., 117485 Moscow, Russia; (I.G.K.); (S.O.F.); (N.I.S.); (A.A.V.); (M.V.O.); (J.V.M.); (M.R.N.)
| | - Margarita R. Novikova
- Laboratory of Functional Biochemistry of the Nervous System, Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 5A Butlerov Str., 117485 Moscow, Russia; (I.G.K.); (S.O.F.); (N.I.S.); (A.A.V.); (M.V.O.); (J.V.M.); (M.R.N.)
| | - Natalia V. Gulyaeva
- Laboratory of Functional Biochemistry of the Nervous System, Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, 5A Butlerov Str., 117485 Moscow, Russia; (I.G.K.); (S.O.F.); (N.I.S.); (A.A.V.); (M.V.O.); (J.V.M.); (M.R.N.)
- Research and Clinical Center for Neuropsychiatry of Moscow Healthcare Department, 43 Donskaya Str., 115419 Moscow, Russia
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41
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Costa J, Martins S, Ferreira PA, Cardoso AMS, Guedes JR, Peça J, Cardoso AL. The old guard: Age-related changes in microglia and their consequences. Mech Ageing Dev 2021; 197:111512. [PMID: 34022277 DOI: 10.1016/j.mad.2021.111512] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 05/11/2021] [Accepted: 05/17/2021] [Indexed: 12/17/2022]
Abstract
Among all major organs, the brain is one of the most susceptible to the inexorable effects of aging. Throughout the last decades, several studies in human cohorts and animal models have revealed a plethora of age-related changes in the brain, including reduced neurogenesis, oxidative damage, mitochondrial dysfunction and cell senescence. As the main immune effectors and first responders of the nervous tissue, microglia are at the center of these events. These cells experience irrevocable changes as a result from cumulative exposure to environmental triggers, such as stress, infection and metabolic dysregulation. The age-related immunosenescent phenotype acquired by microglia is characterized by profound modifications in their transcriptomic profile, secretome, morphology and phagocytic activity, which compromise both their housekeeping and defensive functions. As a result, aged microglia are no longer capable of establishing effective immune responses and sustaining normal synaptic activity, directly contributing to age-associated cognitive decline and neurodegeneration. This review discusses how lifestyle and environmental factors drive microglia dysfunction at the molecular and functional level, also highlighting possible interventions to reverse aging-associated damage to the nervous and immune systems.
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Affiliation(s)
- Jéssica Costa
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal; PhD Programme in Experimental Biology and Biomedicine (PDBEB), University of Coimbra, Coimbra, Portugal
| | - Solange Martins
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Pedro A Ferreira
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; PhD Program in Biosciences, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Ana M S Cardoso
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Joana R Guedes
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - João Peça
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Ana L Cardoso
- CNC - Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal.
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42
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Rosin JM, Sinha S, Biernaskie J, Kurrasch DM. A subpopulation of embryonic microglia respond to maternal stress and influence nearby neural progenitors. Dev Cell 2021; 56:1326-1345.e6. [PMID: 33887203 DOI: 10.1016/j.devcel.2021.03.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 01/21/2021] [Accepted: 03/11/2021] [Indexed: 12/31/2022]
Abstract
The interplay between hypothalamic neurons and microglia as they integrate stressors to regulate homeostasis is of growing interest. We asked if microglia in the embryonic hypothalamus were likewise stress responsive and, if so, whether their precocious activation perturbs nearby neural stem cell (NSC) programs. We performed single-cell transcriptomics to define embryonic hypothalamic microglia heterogeneity and identified four microglial subsets, including a subpopulation adjacent to NSCs that was responsive to gestational cold stress. Stress exposure elevated CCL3 and CCL4 secretion, but only in male brains, and ex vivo CCL4 treatment of hypothalamic NSCs altered proliferation and differentiation. Concomitantly, gestational stress decreased PVN oxytocin neurons only in male embryos, which was reversed by microglia depletion. Adult offspring exposed to gestational stress displayed altered social behaviors, which was likewise microglia dependent, but only in males. Collectively, immature hypothalamic microglia play an unappreciated role in translating maternal stressors to sexually dimorphic perturbation of neurodevelopmental programs.
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Affiliation(s)
- Jessica M Rosin
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB T2N 4N1, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Sarthak Sinha
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB T2N 4N1, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Jeff Biernaskie
- Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB T2N 4N1, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Deborah M Kurrasch
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB T2N 4N1, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 4N1, Canada.
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Moisan MP, Foury A, Dexpert S, Cole SW, Beau C, Forestier D, Ledaguenel P, Magne E, Capuron L. Transcriptomic signaling pathways involved in a naturalistic model of inflammation-related depression and its remission. Transl Psychiatry 2021; 11:203. [PMID: 33824279 PMCID: PMC8024399 DOI: 10.1038/s41398-021-01323-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/19/2021] [Accepted: 03/16/2021] [Indexed: 02/07/2023] Open
Abstract
This study aimed at identifying molecular biomarkers of inflammation-related depression in order to improve diagnosis and treatment. For this, we performed whole-genome expression profiling from peripheral blood in a naturalistic model of inflammation-associated major depressive disorder (MDD) represented by comorbid depression in obese patients. We took advantage of the marked reduction of depressive symptoms and inflammation following bariatric surgery to test the robustness of the identified biomarkers. Depression was assessed during a clinical interview using Mini-International Neuropsychiatric Interview and the 10-item, clinician-administered, Montgomery-Asberg Depression Rating Scale. From a cohort of 100 massively obese patients, we selected 33 of them for transcriptomic analysis. Twenty-four of them were again analyzed 4-12 months after bariatric surgery. We conducted differential gene expression analyses before and after surgery in unmedicated MDD and non-depressed obese subjects. We found that TP53 (Tumor Protein 53), GR (Glucocorticoid Receptor), and NFκB (Nuclear Factor kappa B) pathways were the most discriminating pathways associated with inflammation-related MDD. These signaling pathways were processed in composite z-scores of gene expression that were used as biomarkers in regression analyses. Results showed that these transcriptomic biomarkers highly predicted depressive symptom intensity at baseline and their remission after bariatric surgery. While inflammation was present in all patients, GR signaling over-activation was found only in depressed ones where it may further increase inflammatory and apoptosis pathways. In conclusion, using an original model of inflammation-related depression and its remission without antidepressants, we provide molecular predictors of inflammation-related MDD and new insights in the molecular pathways involved.
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Affiliation(s)
- Marie-Pierre Moisan
- Univ. Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, Bordeaux, France.
| | - Aline Foury
- grid.488493.a0000 0004 0383 684XUniv. Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, Bordeaux, France
| | - Sandra Dexpert
- grid.488493.a0000 0004 0383 684XUniv. Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, Bordeaux, France
| | - Steve W. Cole
- grid.19006.3e0000 0000 9632 6718Division of Hematology-Oncology, Department of Psychiatry & Biobehavioral Sciences and Department of Medicine, UCLA School of Medicine, Los Angeles, CA USA
| | - Cédric Beau
- Service de Chirurgie Digestive et Pariétale, Clinique Tivoli, Bordeaux, and Clinique Jean Villar, Bruges, France
| | - Damien Forestier
- Service de Chirurgie Digestive et Pariétale, Clinique Tivoli, Bordeaux, and Clinique Jean Villar, Bruges, France
| | - Patrick Ledaguenel
- Service de Chirurgie Digestive et Pariétale, Clinique Tivoli, Bordeaux, and Clinique Jean Villar, Bruges, France
| | - Eric Magne
- Service de Chirurgie Digestive et Pariétale, Clinique Tivoli, Bordeaux, and Clinique Jean Villar, Bruges, France
| | - Lucile Capuron
- Univ. Bordeaux, INRAE, Bordeaux INP, NutriNeuro, UMR 1286, Bordeaux, France.
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Bekhbat M, Mukhara D, Dozmorov MG, Stansfield JC, Benusa SD, Hyer MM, Rowson SA, Kelly SD, Qin Z, Dupree JL, Tharp GK, Tansey MG, Neigh GN. Adolescent stress sensitizes the adult neuroimmune transcriptome and leads to sex-specific microglial and behavioral phenotypes. Neuropsychopharmacology 2021; 46:949-958. [PMID: 33558677 PMCID: PMC8115118 DOI: 10.1038/s41386-021-00970-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 01/11/2021] [Accepted: 01/13/2021] [Indexed: 01/30/2023]
Abstract
Adolescent exposure to chronic stress, a risk factor for mood disorders in adulthood, sensitizes the neuroinflammatory response to a subsequent immune challenge. We previously showed that chronic adolescent stress (CAS) in rats led to distinct patterns of neuroimmune priming in adult male and female rats. However, sex differences in the neuroimmune consequences of CAS and their underlying mechanisms are not fully understood. Here we hypothesized that biological sex would dictate differential induction of inflammation-related transcriptomic pathways and immune cell involvement (microglia activation and leukocyte presence) in the hippocampus of male and female rats with a history of CAS. Adolescent rats underwent CAS (six restraint and six social defeat episodes during postnatal days 38-49), and behavioral assessments were conducted in adolescence and adulthood. Neuroimmune measures were obtained following vehicle or a systemic lipopolysaccharide (LPS) challenge in adulthood. CAS led to increased time in the corners of the open field in adolescence. In males, CAS also increased social avoidance. As adults, CAS rats displayed an exaggerated enrichment of the nuclear factor kappa-light-chain-enhancer of activated B cells (NFκB) pathway and chemokine induction following LPS challenge, and increased number of perivascular CD45+ cells in the hippocampus. However, CAS females, but not males, showed exaggerated glucocorticoid receptor (GR) pathway enrichment and increased microglial complexity. These results provide further insight to the mechanisms by which peripheral immune events may influence neuroimmune responses differentially among males and females and further demonstrate the importance of adolescent stress in shaping adult responses.
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Affiliation(s)
- Mandakh Bekhbat
- grid.189967.80000 0001 0941 6502Department of Physiology, Emory University, Atlanta, GA 30322 USA
| | - Deepika Mukhara
- grid.224260.00000 0004 0458 8737Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, VA 23298 USA
| | - Mikhail G. Dozmorov
- grid.417264.20000 0001 2194 2791Center for Clinical and Translational Research, Virginia Commonwealth University Medical Center, Richmond, VA 23298 USA
| | - John C. Stansfield
- grid.417264.20000 0001 2194 2791Center for Clinical and Translational Research, Virginia Commonwealth University Medical Center, Richmond, VA 23298 USA
| | - Savannah D. Benusa
- grid.224260.00000 0004 0458 8737Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, VA 23298 USA
| | - Molly M. Hyer
- grid.224260.00000 0004 0458 8737Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, VA 23298 USA
| | - Sydney A. Rowson
- grid.189967.80000 0001 0941 6502Department of Physiology, Emory University, Atlanta, GA 30322 USA
| | - Sean D. Kelly
- grid.189967.80000 0001 0941 6502Department of Physiology, Emory University, Atlanta, GA 30322 USA
| | - Zhaohui Qin
- grid.189967.80000 0001 0941 6502Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA USA
| | - Jeffrey L. Dupree
- grid.224260.00000 0004 0458 8737Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, VA 23298 USA
| | - Gregory K. Tharp
- grid.189967.80000 0001 0941 6502Division of Developmental & Cognitive Neuroscience, Yerkes National Primate Research Center, Atlanta, GA 30322 USA
| | - Malú G. Tansey
- grid.189967.80000 0001 0941 6502Department of Physiology, Emory University, Atlanta, GA 30322 USA
| | - Gretchen N. Neigh
- grid.189967.80000 0001 0941 6502Department of Physiology, Emory University, Atlanta, GA 30322 USA ,grid.224260.00000 0004 0458 8737Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, VA 23298 USA ,grid.189967.80000 0001 0941 6502Department of Psychiatry & Behavioral Sciences, Emory University, Atlanta, GA 30322 USA
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Picard K, St-Pierre MK, Vecchiarelli HA, Bordeleau M, Tremblay MÈ. Neuroendocrine, neuroinflammatory and pathological outcomes of chronic stress: A story of microglial remodeling. Neurochem Int 2021; 145:104987. [PMID: 33587954 DOI: 10.1016/j.neuint.2021.104987] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 02/07/2021] [Accepted: 02/08/2021] [Indexed: 02/07/2023]
Abstract
Microglia, the resident macrophage cells of the central nervous system (CNS), are involved in a myriad of processes required to maintain CNS homeostasis. These cells are dynamic and can adapt their phenotype and functions to the physiological needs of the organism. Microglia rapidly respond to changes occurring in their microenvironment, such as the ones taking place during stress. While stress can be beneficial for the organism to adapt to a situation, it can become highly detrimental when it turns chronic. Microglial response to prolonged stress may lead to an alteration of their beneficial physiological functions, becoming either maladaptive or pro-inflammatory. In this review, we aim to summarize the effects of chronic stress exerted on microglia through the neuroendocrine system and inflammation at adulthood. We also discuss how these effects of chronic stress could contribute to microglial involvement in neuropsychiatric and sleep disorders, as well as neurodegenerative diseases.
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Affiliation(s)
- Katherine Picard
- Axe Neurosciences, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada; Division of Medical Sciences, University of Victoria, Victoria, BC, Canada; Department of Molecular Medicine, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - Marie-Kim St-Pierre
- Axe Neurosciences, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada; Division of Medical Sciences, University of Victoria, Victoria, BC, Canada; Department of Molecular Medicine, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | | | - Maude Bordeleau
- Axe Neurosciences, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada; Integrated Program in Neuroscience, McGill University, Montreal, QC, Canada
| | - Marie-Ève Tremblay
- Axe Neurosciences, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada; Division of Medical Sciences, University of Victoria, Victoria, BC, Canada; Department of Molecular Medicine, Faculty of Medicine, Université Laval, Québec, QC, Canada; Neurology and Neurosurgery Department, McGill University, Montréal, QC, Canada; Department of Biochemistry and Molecular Biology, The University of British Columbia, Vancouver, BC, Canada.
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46
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Kaul D, Schwab SG, Mechawar N, Matosin N. How stress physically re-shapes the brain: Impact on brain cell shapes, numbers and connections in psychiatric disorders. Neurosci Biobehav Rev 2021; 124:193-215. [PMID: 33556389 DOI: 10.1016/j.neubiorev.2021.01.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/20/2021] [Accepted: 01/31/2021] [Indexed: 12/16/2022]
Abstract
Severe stress is among the most robust risk factors for the development of psychiatric disorders. Imaging studies indicate that life stress is integral to shaping the human brain, especially regions involved in processing the stress response. Although this is likely underpinned by changes to the cytoarchitecture of cellular networks in the brain, we are yet to clearly understand how these define a role for stress in human psychopathology. In this review, we consolidate evidence of macro-structural morphometric changes and the cellular mechanisms that likely underlie them. Focusing on stress-sensitive regions of the brain, we illustrate how stress throughout life may lead to persistent remodelling of the both neurons and glia in cellular networks and how these may lead to psychopathology. We support that greater translation of cellular alterations to human cohorts will support parsing the psychological sequalae of severe stress and improve our understanding of how stress shapes the human brain. This will remain a critical step for improving treatment interventions and prevention outcomes.
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Affiliation(s)
- Dominic Kaul
- Illawarra Health and Medical Research Institute, Northfields Ave, Wollongong 2522, Australia; Molecular Horizons, School of Chemistry and Molecular Biosciences, University of Wollongong, Northfields Ave, Wollongong 2522, Australia
| | - Sibylle G Schwab
- Illawarra Health and Medical Research Institute, Northfields Ave, Wollongong 2522, Australia; Molecular Horizons, School of Chemistry and Molecular Biosciences, University of Wollongong, Northfields Ave, Wollongong 2522, Australia
| | - Naguib Mechawar
- Douglas Mental Health University Institute, 6875 LaSalle blvd, Verdun, Qc, H4H 1R3, Canada
| | - Natalie Matosin
- Illawarra Health and Medical Research Institute, Northfields Ave, Wollongong 2522, Australia; Molecular Horizons, School of Chemistry and Molecular Biosciences, University of Wollongong, Northfields Ave, Wollongong 2522, Australia; Max Planck Institute of Psychiatry, Kraepelinstrasse 2-10, 80804 Munich, Germany.
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47
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Korkmaz C, Cansu DU, Cansu GB. Familial Mediterranean fever: the molecular pathways from stress exposure to attacks. Rheumatology (Oxford) 2021; 59:3611-3621. [PMID: 33026080 DOI: 10.1093/rheumatology/keaa450] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/21/2020] [Accepted: 06/30/2020] [Indexed: 12/18/2022] Open
Abstract
FMF is an autoinflammatory disease characterized by recurrent attacks and increased IL-1 synthesis owing to activation of the pyrin inflammasome. Although knowledge of the mechanisms leading to the activation of pyrin inflammasome is increasing, it is still unknown why the disease is characterized by attack. The emergence of FMF attacks after emotional stress and the induction of attacks with metaraminol in previous decades suggested that stress-induced sympathoadrenal system activation might play a role in inflammasome activation and triggering attacks. In this review, we will review the possible molecular mechanism of stress mediators on the inflammation pathway and inflammasome activation. Studies on stress mediators and their impact on inflammation pathways will provide a better understanding of stress-related exacerbation mechanisms in both autoinflammatory and autoimmune diseases. This review provides a new perspective on this subject and will contribute to new studies.
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Affiliation(s)
- Cengiz Korkmaz
- Division of Rheumatology, Department of Internal Medicine, Eskisehir Osmangazi University, School of Medicine, Eskisehir
| | - Döndü U Cansu
- Division of Rheumatology, Department of Internal Medicine, Eskisehir Osmangazi University, School of Medicine, Eskisehir
| | - Güven Barış Cansu
- Department of Endocrinology, Kütahya Health Science University, School of Medicine, Kütahya, 43100, Turkey
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Cromarty R, Sigal A, Liebenberg LJ, Mckinnon LR, Abdool Karim SS, Passmore JAS, Archary D. Betamethasone induces potent immunosuppression and reduces HIV infection in a PBMC in vitro model. J Investig Med 2020; 69:28-40. [PMID: 33004468 PMCID: PMC7803916 DOI: 10.1136/jim-2020-001424] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/25/2020] [Indexed: 01/15/2023]
Abstract
Genital inflammation is an established risk factor for increased HIV acquisition risk. Certain HIV-exposed seronegative populations, who are naturally resistant to HIV infection, have an immune quiescent phenotype defined by reduced immune activation and inflammatory cytokines at the genital tract. Therefore, the aim of this study was to create an immune quiescent environment using immunomodulatory drugs to mitigate HIV infection. Using an in vitro peripheral blood mononuclear cell (PBMC) model, we found that inflammation was induced using phytohemagglutinin and Toll-like receptor (TLR) agonists Pam3CSK4 (TLR1/2), lipopolysaccharide (LPS) (TLR4) and R848 (TLR7/8). After treatment with anti-inflammatory drugs, ibuprofen (IBF) and betamethasone (BMS), PBMCs were exposed to HIV NL4-3 AD8. Multiplexed ELISA was used to measure 28 cytokines to assess inflammation. Flow cytometry was used to measure immune activation (CD38, HLA-DR and CCR5) and HIV infection (p24 production) of CD4+ T cells. BMS potently suppressed inflammation (soluble cytokines, p<0.05) and immune activation (CD4+ T cells, p<0.05). BMS significantly reduced HIV infection of CD4+ T cells only in the LPS (0.98%) and unstimulated (1.7%) conditions (p<0.02). In contrast, IBF had minimal anti-inflammatory and immunosuppressive but no anti-HIV effects. BMS demonstrated potent anti-inflammatory effects, regardless of stimulation condition. Despite uniform immunosuppression, BMS differentially affected HIV infection according to the stimulation conditions, highlighting the complex nature of these interactions. Together, these data underscore the importance of interrogating inflammatory signaling pathways to identify novel drug targets to mitigate HIV infection.
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Affiliation(s)
- Ross Cromarty
- Mucosal Immunology Laboratory, CAPRISA, Durban, KwaZulu-Natal, South Africa
| | - Alexander Sigal
- Africa Health Research Institute (AHRI), Durban, KwaZulu-Natal, South Africa
- Max-Planck-Institute for Infection Biology, Berlin, Germany
| | - Lenine Julie Liebenberg
- Mucosal Immunology Laboratory, CAPRISA, Durban, KwaZulu-Natal, South Africa
- Department of Medical Microbiology, University of KwaZulu-Natal, Durban, KwaZulu-Natal, South Africa
| | - Lyle Robert Mckinnon
- Mucosal Immunology Laboratory, CAPRISA, Durban, KwaZulu-Natal, South Africa
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Salim Safurdeen Abdool Karim
- Mucosal Immunology Laboratory, CAPRISA, Durban, KwaZulu-Natal, South Africa
- Department of Epidemiology, Columbia University Mailman School of Public Health, New York, New York, USA
| | - Jo-Ann Shelly Passmore
- Mucosal Immunology Laboratory, CAPRISA, Durban, KwaZulu-Natal, South Africa
- Institute of Infectious Diseases and Molecular Medicine, University of Cape Town Faculty of Health Sciences, Cape Town, Western Cape, South Africa
| | - Derseree Archary
- Mucosal Immunology Laboratory, CAPRISA, Durban, KwaZulu-Natal, South Africa
- Department of Medical Microbiology, University of KwaZulu-Natal, Durban, KwaZulu-Natal, South Africa
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Ito N, Sasaki K, Takemoto H, Kobayashi Y, Isoda H, Odaguchi H. Emotional Impairments and Neuroinflammation are Induced in Male Mice Invulnerable to Repeated Social Defeat Stress. Neuroscience 2020; 443:148-163. [PMID: 32707290 DOI: 10.1016/j.neuroscience.2020.07.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/10/2020] [Accepted: 07/14/2020] [Indexed: 11/26/2022]
Abstract
Prolonged stress triggers neuroinflammation, which plays a significant role in the development of depression; however, stressed people do not always suffer from depression because of individual differences in stress vulnerability. Negative cognitive bias (NCB) toward pessimistic judgment often underlies depressive episodes. However, a relationship between stress vulnerability, neuroinflammation, and NCB remains elusive. In addition, an animal model with all the traits would be a powerful tool for studying the etiology of depression and its therapeutic approaches. Accordingly, this study evaluated the effect of stress vulnerability on neuroinflammation and depression-related behaviors, including NCB in males, using a modified version of repeated social defeat stress (mRSDS) paradigm, a validated animal model of psychosocial stress. Exposure to mRSDS, consisting of 5 min of social defeat by unfamiliar CD-1 aggressor mice for five consecutive days, caused NCB, which co-occurred with depressive- and anxiety-like behaviors, and neuroinflammation in male BALB/c mice. Treatment with minocycline, an antibiotic with anti-inflammatory property, blocked mRSDS-induced depressive-like behaviors and neuroinflammation, but not NCB, indicating the limited effect of an anti-inflammatory intervention. In addition, marked differences were found in neuroinflammatory profiles and hippocampal gene expression patterns between resilient and unstressed mice, as well as between susceptible and resilient mice. Therefore, mice resilient to mRSDS are indeed not intact. Our findings provide insights into the unique features of the mRSDS model in male BALB/c mice, which could be used to investigate the etiological mechanisms underlying depression as well as bridge the gap in the relationship between stress vulnerability, neuroinflammation, and NCB in males.
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Affiliation(s)
- Naoki Ito
- Department of Clinical Research, Oriental Medicine Research Center, Kitasato University, Minato-ku, Tokyo 108-8642, Japan.
| | - Kazunori Sasaki
- Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba-shi, Ibaraki 305-8572, Japan; Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba-shi, Ibaraki 305-8565, Japan; Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba-shi, Ibaraki 305-8571, Japan
| | - Hiroaki Takemoto
- School of Pharmacy, Kitasato University, Minato-ku, Tokyo 108-8642, Japan
| | - Yoshinori Kobayashi
- Department of Clinical Research, Oriental Medicine Research Center, Kitasato University, Minato-ku, Tokyo 108-8642, Japan; School of Pharmacy, Kitasato University, Minato-ku, Tokyo 108-8642, Japan
| | - Hiroko Isoda
- Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba-shi, Ibaraki 305-8572, Japan; Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba-shi, Ibaraki 305-8565, Japan; Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba-shi, Ibaraki 305-8572, Japan
| | - Hiroshi Odaguchi
- Department of Clinical Research, Oriental Medicine Research Center, Kitasato University, Minato-ku, Tokyo 108-8642, Japan
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50
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Ilchmann-Diounou H, Menard S. Psychological Stress, Intestinal Barrier Dysfunctions, and Autoimmune Disorders: An Overview. Front Immunol 2020; 11:1823. [PMID: 32983091 PMCID: PMC7477358 DOI: 10.3389/fimmu.2020.01823] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 07/07/2020] [Indexed: 12/12/2022] Open
Abstract
Autoimmune disorders (ADs) are multifactorial diseases involving, genetic, epigenetic, and environmental factors characterized by an inappropriate immune response toward self-antigens. In the past decades, there has been a continuous rise in the incidence of ADs, which cannot be explained by genetic factors alone. Influence of psychological stress on the development or the course of autoimmune disorders has been discussed for a long time. Indeed, based on epidemiological studies, stress has been suggested to precede AD occurrence and to exacerbate symptoms. Furthermore, compiling data showed that most of ADs are associated with gastrointestinal symptoms, that is, microbiota dysbiosis, intestinal hyperpermeability, and intestinal inflammation. Interestingly, social stress (acute or chronic, in adult or in neonate) is a well-described intestinal disrupting factor. Taken together, those observations question a potential role of stress-induced defect of the intestinal barrier in the onset and/or the course of ADs. In this review, we aim to present evidences supporting the hypothesis for a role of stress-induced intestinal barrier disruption in the onset and/or the course of ADs. We will mainly focus on autoimmune type 1 diabetes, multiple sclerosis and systemic lupus erythematosus, ADs for which we could find sufficient circumstantial data to support this hypothesis. We excluded gastrointestinal (GI) ADs like coeliac disease to privilege ADs not focused on intestinal disorders to avoid confounding factors. Indeed, GIADs are characterized by antibodies directed against intestinal barrier actors.
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MESH Headings
- Animals
- Autoimmune Diseases/epidemiology
- Autoimmune Diseases/immunology
- Autoimmune Diseases/metabolism
- Autoimmune Diseases/microbiology
- Autoimmunity
- Diabetes Mellitus, Type 1/epidemiology
- Diabetes Mellitus, Type 1/immunology
- Diabetes Mellitus, Type 1/metabolism
- Diabetes Mellitus, Type 1/microbiology
- Dysbiosis
- Gastrointestinal Microbiome
- Host-Pathogen Interactions
- Humans
- Intestinal Mucosa/immunology
- Intestinal Mucosa/metabolism
- Intestinal Mucosa/microbiology
- Lupus Erythematosus, Systemic/epidemiology
- Lupus Erythematosus, Systemic/immunology
- Lupus Erythematosus, Systemic/metabolism
- Lupus Erythematosus, Systemic/microbiology
- Multiple Sclerosis/epidemiology
- Multiple Sclerosis/immunology
- Multiple Sclerosis/metabolism
- Multiple Sclerosis/microbiology
- Permeability
- Risk Factors
- Stress, Psychological/epidemiology
- Stress, Psychological/immunology
- Stress, Psychological/metabolism
- Stress, Psychological/microbiology
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Affiliation(s)
| | - Sandrine Menard
- Neuro-Gastroenterology and Nutrition Team, Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France
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