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Ghena N, Anderson SR, Roberts JM, Irvin E, Schwakopf J, Bosco A, Vetter ML. CD11c-expressing microglia are transient, driven by interactions with apoptotic cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.24.600082. [PMID: 38979153 PMCID: PMC11230207 DOI: 10.1101/2024.06.24.600082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Microglia, the parenchymal macrophage of the central nervous system serve crucial remodeling functions throughout development. Microglia are transcriptionally heterogenous, suggesting that distinct microglial states confer discrete roles. Currently, little is known about how dynamic these states are, the cues that promote them, or how they impact microglial function. In the developing retina, we previously found a significant proportion of microglia express CD11c (Integrin αX, complement receptor 4, Itgax ) which has also been reported in other developmental and disease contexts. Here, we sought to understand the regulation and function of CD11c+ microglia. We found that CD11c+ microglia track with prominent waves of neuronal apoptosis in postnatal retina. Using genetic fate mapping, we provide evidence that microglia transition out of the CD11c state to return to homeostasis. We show that CD11c+ microglia have elevated lysosomal content and contribute to the clearance of apoptotic neurons, and found that acquisition of CD11c expression is, in part, dependent upon the TAM receptor Axl. Using selective ablation, we found CD11c+ microglia are not uniquely critical for phagocytic clearance of apoptotic cells. Together, our data suggest CD11c+ microglia are a transient state induced by developmental apoptosis rather than a specialized subset mediating phagocytic elimination.
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Zhang P, Gao C, Guo Q, Yang D, Zhang G, Lu H, Zhang L, Zhang G, Li D. Single-cell RNA sequencing reveals the evolution of the immune landscape during perihematomal edema progression after intracerebral hemorrhage. J Neuroinflammation 2024; 21:140. [PMID: 38807233 PMCID: PMC11131315 DOI: 10.1186/s12974-024-03113-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/26/2024] [Indexed: 05/30/2024] Open
Abstract
BACKGROUND Perihematomal edema (PHE) after post-intracerebral hemorrhage (ICH) has complex pathophysiological mechanisms that are poorly understood. The complicated immune response in the post-ICH brain constitutes a crucial component of PHE pathophysiology. In this study, we aimed to characterize the transcriptional profiles of immune cell populations in human PHE tissue and explore the microscopic differences between different types of immune cells. METHODS 9 patients with basal ganglia intracerebral hemorrhage (hematoma volume 50-100 ml) were enrolled in this study. A multi-stage profile was developed, comprising Group1 (n = 3, 0-6 h post-ICH, G1), Group2 (n = 3, 6-24 h post-ICH, G2), and Group3 (n = 3, 24-48 h post-ICH, G3). A minimal quantity of edematous tissue surrounding the hematoma was preserved during hematoma evacuation. Single cell RNA sequencing (scRNA-seq) was used to map immune cell populations within comprehensively resected PHE samples collected from patients at different stages after ICH. RESULTS We established, for the first time, a comprehensive landscape of diverse immune cell populations in human PHE tissue at a single-cell level. Our study identified 12 microglia subsets and 5 neutrophil subsets in human PHE tissue. What's more, we discovered that the secreted phosphoprotein-1 (SPP1) pathway served as the basis for self-communication between microglia subclusters during the progression of PHE. Additionally, we traced the trajectory branches of different neutrophil subtypes. Finally, we also demonstrated that microglia-produced osteopontin (OPN) could regulate the immune environment in PHE tissue by interacting with CD44-positive cells. CONCLUSIONS As a result of our research, we have gained valuable insight into the immune-microenvironment within PHE tissue, which could potentially be used to develop novel treatment modalities for ICH.
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Affiliation(s)
- Peng Zhang
- Department of Clinical Medicine, Jining Medical University, Jining, China
| | - Cong Gao
- Department of Clinical Medicine, Jining Medical University, Jining, China
| | - Qiang Guo
- Department of Emergency Stroke, Affiliated Hospital of Jining Medical University, Jining, China
| | - Dongxu Yang
- Department of Emergency Stroke, Affiliated Hospital of Jining Medical University, Jining, China
| | - Guangning Zhang
- Department of Neurosurgery, Affiliated Hospital of Jining Medical University, Jining, China
| | - Hao Lu
- Department of Emergency Stroke, Affiliated Hospital of Jining Medical University, Jining, China
| | - Liman Zhang
- Department of Pathology, Affiliated Hospital of Jining Medical University, Jining, China
| | - Guorong Zhang
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining, China
| | - Daojing Li
- Department of Neurology, Affiliated Hospital of Jining Medical University, Jining, China.
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Wamsley B, Bicks L, Cheng Y, Kawaguchi R, Quintero D, Margolis M, Grundman J, Liu J, Xiao S, Hawken N, Mazariegos S, Geschwind DH. Molecular cascades and cell type-specific signatures in ASD revealed by single-cell genomics. Science 2024; 384:eadh2602. [PMID: 38781372 DOI: 10.1126/science.adh2602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 02/28/2024] [Indexed: 05/25/2024]
Abstract
Genomic profiling in postmortem brain from autistic individuals has consistently revealed convergent molecular changes. What drives these changes and how they relate to genetic susceptibility in this complex condition are not well understood. We performed deep single-nucleus RNA sequencing (snRNA-seq) to examine cell composition and transcriptomics, identifying dysregulation of cell type-specific gene regulatory networks (GRNs) in autism spectrum disorder (ASD), which we corroborated using single-nucleus assay for transposase-accessible chromatin with sequencing (snATAC-seq) and spatial transcriptomics. Transcriptomic changes were primarily cell type specific, involving multiple cell types, most prominently interhemispheric and callosal-projecting neurons, interneurons within superficial laminae, and distinct glial reactive states involving oligodendrocytes, microglia, and astrocytes. Autism-associated GRN drivers and their targets were enriched in rare and common genetic risk variants, connecting autism genetic susceptibility and cellular and circuit alterations in the human brain.
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Affiliation(s)
- Brie Wamsley
- Program in Neurobehavioral Genetics and Center for Autism Research and Treatment, Semel Institute, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Program in Neurogenetics, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Lucy Bicks
- Program in Neurogenetics, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Psychiatry, Semel Institute, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yuyan Cheng
- Program in Neurogenetics, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Riki Kawaguchi
- Program in Neurogenetics, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Diana Quintero
- Program in Neurogenetics, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Michael Margolis
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jennifer Grundman
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jianyin Liu
- Program in Neurogenetics, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Shaohua Xiao
- Program in Neurogenetics, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Natalie Hawken
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Samantha Mazariegos
- Program in Neurogenetics, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Daniel H Geschwind
- Program in Neurobehavioral Genetics and Center for Autism Research and Treatment, Semel Institute, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Program in Neurogenetics, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Psychiatry, Semel Institute, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
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Nomaki K, Fujikawa R, Masuda T, Tsuda M. Spatiotemporal dynamics of the CD11c + microglial population in the mouse brain and spinal cord from developmental to adult stages. Mol Brain 2024; 17:24. [PMID: 38762724 PMCID: PMC11102220 DOI: 10.1186/s13041-024-01098-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 05/08/2024] [Indexed: 05/20/2024] Open
Abstract
CD11c-positive (CD11c+) microglia have attracted considerable attention because of their potential implications in central nervous system (CNS) development, homeostasis, and disease. However, the spatiotemporal dynamics of the proportion of CD11c+ microglia in individual CNS regions are poorly understood. Here, we investigated the proportion of CD11c+ microglia in six CNS regions (forebrain, olfactory bulb, diencephalon/midbrain, cerebellum, pons/medulla, and spinal cord) from the developmental to adult stages by flow cytometry and immunohistochemical analyses using a CD11c reporter transgenic mouse line, Itgax-Venus. We found that the proportion of CD11c+ microglia in total microglia varied between CNS regions during postnatal development. Specifically, the proportion was high in the olfactory bulb and cerebellum at postnatal day P(4) and P7, respectively, and approximately half of the total microglia were CD11c+. The proportion declined sharply in all regions to P14, and the low percentage persisted over P56. In the spinal cord, the proportion of CD11c+ microglia was also high at P4 and declined to P14, but increased again at P21 and thereafter. Interestingly, the distribution pattern of CD11c+ microglia in the spinal cord markedly changed from gray matter at P4 to white matter at P21. Collectively, our findings reveal the differences in the spatiotemporal dynamics of the proportion of CD11c+ microglia among CNS regions from early development to adult stages in normal mice. These findings improve our understanding of the nature of microglial heterogeneity and its dynamics in the CNS.
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Affiliation(s)
- Kohei Nomaki
- Department of Molecular and System Pharmacology, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Risako Fujikawa
- Department of Molecular and System Pharmacology, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Takahiro Masuda
- Division of Molecular Neuroimmunology, Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Makoto Tsuda
- Department of Molecular and System Pharmacology, Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
- Kyushu University Institute for Advanced Study, 744 Motooka Nishi-ku, Fukuoka, 819-0395, Japan.
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Mader MMD, Napole A, Wu D, Atkins M, Scavetti A, Shibuya Y, Foltz A, Hahn O, Yoo Y, Danziger R, Tan C, Wyss-Coray T, Steinman L, Wernig M. Myeloid cell replacement is neuroprotective in chronic experimental autoimmune encephalomyelitis. Nat Neurosci 2024; 27:901-912. [PMID: 38514857 DOI: 10.1038/s41593-024-01609-3] [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: 01/12/2023] [Accepted: 02/22/2024] [Indexed: 03/23/2024]
Abstract
Multiple sclerosis (MS) is an autoimmune disease characterized by demyelination of the central nervous system (CNS). Autologous hematopoietic cell transplantation (HCT) shows promising benefits for relapsing-remitting MS in open-label clinical studies, but the cellular mechanisms underlying its therapeutic effects remain unclear. Using single-nucleus RNA sequencing, we identify a reactive myeloid cell state in chronic experimental autoimmune encephalitis (EAE) associated with neuroprotection and immune suppression. HCT in EAE mice results in an increase of the neuroprotective myeloid state, improvement of neurological deficits, reduced number of demyelinated lesions, decreased number of effector T cells and amelioration of reactive astrogliosis. Enhancing myeloid cell incorporation after a modified HCT further improved these neuroprotective effects. These data suggest that myeloid cell manipulation or replacement may be an effective therapeutic strategy for chronic inflammatory conditions of the CNS.
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Affiliation(s)
- Marius Marc-Daniel Mader
- Institute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Alan Napole
- Institute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Danwei Wu
- Institute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Neurology and Neurosciences, Division of Neuroimmunology and Multiple Sclerosis Center, Stanford University of Medicine, Stanford, CA, USA
| | - Micaiah Atkins
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Alexa Scavetti
- Institute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Yohei Shibuya
- Institute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Aulden Foltz
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Oliver Hahn
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Yongjin Yoo
- Institute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Ron Danziger
- Institute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Christina Tan
- Institute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Tony Wyss-Coray
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Lawrence Steinman
- Department of Neurology and Neurosciences, Division of Neuroimmunology and Multiple Sclerosis Center, Stanford University of Medicine, Stanford, CA, USA
| | - Marius Wernig
- Institute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA.
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA.
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Lawrence AR, Canzi A, Bridlance C, Olivié N, Lansonneur C, Catale C, Pizzamiglio L, Kloeckner B, Silvin A, Munro DAD, Fortoul A, Boido D, Zehani F, Cartonnet H, Viguier S, Oller G, Squarzoni P, Candat A, Helft J, Allet C, Watrin F, Manent JB, Paoletti P, Thieffry D, Cantini L, Pridans C, Priller J, Gélot A, Giacobini P, Ciobanu L, Ginhoux F, Thion MS, Lokmane L, Garel S. Microglia maintain structural integrity during fetal brain morphogenesis. Cell 2024; 187:962-980.e19. [PMID: 38309258 PMCID: PMC10869139 DOI: 10.1016/j.cell.2024.01.012] [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: 03/13/2023] [Revised: 09/30/2023] [Accepted: 01/10/2024] [Indexed: 02/05/2024]
Abstract
Microglia (MG), the brain-resident macrophages, play major roles in health and disease via a diversity of cellular states. While embryonic MG display a large heterogeneity of cellular distribution and transcriptomic states, their functions remain poorly characterized. Here, we uncovered a role for MG in the maintenance of structural integrity at two fetal cortical boundaries. At these boundaries between structures that grow in distinct directions, embryonic MG accumulate, display a state resembling post-natal axon-tract-associated microglia (ATM) and prevent the progression of microcavities into large cavitary lesions, in part via a mechanism involving the ATM-factor Spp1. MG and Spp1 furthermore contribute to the rapid repair of lesions, collectively highlighting protective functions that preserve the fetal brain from physiological morphogenetic stress and injury. Our study thus highlights key major roles for embryonic MG and Spp1 in maintaining structural integrity during morphogenesis, with major implications for our understanding of MG functions and brain development.
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Affiliation(s)
- Akindé René Lawrence
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Brain Development and Plasticity, 75005 Paris, France
| | - Alice Canzi
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Brain Development and Plasticity, 75005 Paris, France
| | - Cécile Bridlance
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Brain Development and Plasticity, 75005 Paris, France; Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, Université PSL, Paris, France; Sorbonne Université, Collège Doctoral, 75005 Paris, France
| | - Nicolas Olivié
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Brain Development and Plasticity, 75005 Paris, France; Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, Université PSL, Paris, France
| | - Claire Lansonneur
- Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, Université PSL, Paris, France; Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Computational Systems Biology, 75005 Paris, France
| | - Clarissa Catale
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Brain Development and Plasticity, 75005 Paris, France
| | - Lara Pizzamiglio
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Glutamate Receptors and Excitatory Synapses, 75005 Paris, France
| | - Benoit Kloeckner
- Gustave Roussy Cancer Campus, INSERM, Team Myeloid Cell Development, 94800 Villejuif, France
| | - Aymeric Silvin
- Gustave Roussy Cancer Campus, INSERM, Team Myeloid Cell Development, 94800 Villejuif, France
| | - David A D Munro
- UK Dementia Research Institute at the University of Edinburgh, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Aurélien Fortoul
- INMED, INSERM, Aix-Marseille University, Turing Centre for Living Systems, Marseille, France
| | - Davide Boido
- NeuroSpin, CEA, Paris-Saclay University, Gif-sur-Yvette, Saclay, France
| | - Feriel Zehani
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Brain Development and Plasticity, 75005 Paris, France
| | - Hugues Cartonnet
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Brain Development and Plasticity, 75005 Paris, France
| | - Sarah Viguier
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Brain Development and Plasticity, 75005 Paris, France; Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, Université PSL, Paris, France
| | - Guillaume Oller
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Brain Development and Plasticity, 75005 Paris, France
| | - Paola Squarzoni
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Brain Development and Plasticity, 75005 Paris, France
| | - Adrien Candat
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Electron Microscopy Facility, 75005 Paris, France
| | - Julie Helft
- Institut Cochin, INSERM, CNRS, Université Paris Cité, Team Phagocytes and Tumor Immunology, 75014 Paris, France
| | - Cécile Allet
- UMR-S 1172, JPArc - Centre de Recherche Neurosciences et Cancer, University of Lille, Lille, France
| | - Francoise Watrin
- INMED, INSERM, Aix-Marseille University, Turing Centre for Living Systems, Marseille, France
| | - Jean-Bernard Manent
- INMED, INSERM, Aix-Marseille University, Turing Centre for Living Systems, Marseille, France
| | - Pierre Paoletti
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Glutamate Receptors and Excitatory Synapses, 75005 Paris, France
| | - Denis Thieffry
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Computational Systems Biology, 75005 Paris, France
| | - Laura Cantini
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Computational Systems Biology, 75005 Paris, France
| | - Clare Pridans
- University of Edinburgh Centre for Inflammation Research, Edinburgh EH16 4TJ, UK; Simons Initiative for the Developing Brain, University of Edinburgh, Edinburgh, UK
| | - Josef Priller
- UK Dementia Research Institute at the University of Edinburgh, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK; Department of Psychiatry and Psychotherapy, School of Medicine, Technical University Munich, 81675 Munich, Germany; Neuropsychiatry and Laboratory of Molecular Psychiatry, Charité - Universitätsmedizin and DZNE Berlin, 10117 Berlin, Germany
| | - Antoinette Gélot
- Service d'anatomie Pathologique, Hôpital Trousseau APHP, 75571 Paris Cedex 12, France
| | - Paolo Giacobini
- University of Lille, CHU Lille, Inserm, Laboratory of Development and Plasticity of the Neuroendocrine Brain, Lille Neuroscience and Cognition, UMR-S 1172, 59000 Lille, France
| | - Luisa Ciobanu
- NeuroSpin, CEA, Paris-Saclay University, Gif-sur-Yvette, Saclay, France
| | - Florent Ginhoux
- Gustave Roussy Cancer Campus, INSERM, Team Myeloid Cell Development, 94800 Villejuif, France; Singapore Immunology Network (SIgN), Agency for Science, Technology and Research, Singapore 138648, Singapore
| | - Morgane Sonia Thion
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Brain Development and Plasticity, 75005 Paris, France; Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, Université PSL, Paris, France
| | - Ludmilla Lokmane
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Brain Development and Plasticity, 75005 Paris, France
| | - Sonia Garel
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, Université PSL, Team Brain Development and Plasticity, 75005 Paris, France; Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, Université PSL, Paris, France; Collège de France, Université PSL, 75005 Paris, France.
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7
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Cui J, Wang H, Liu S, Zhao Y. New Insights into Roles of IL-7R Gene as a Therapeutic Target Following Intracerebral Hemorrhage. J Inflamm Res 2024; 17:399-415. [PMID: 38260810 PMCID: PMC10802176 DOI: 10.2147/jir.s438205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Background Spontaneous intracerebral hemorrhage (ICH) is a subtype of stroke leading to high rates of morbidity and mortality in adults. Recent studies showed that immune and inflammatory responses might play essential roles in secondary brain injury. The purpose of this article was to provide a reference for further therapeutic strategies for ICH patients. Methods GSE206971 and GSE216607 datasets from the gene expression omnibus (GEO) database were used to screen the highly immune-related differentally expressed genes (IRDEGs). We used the CIBERSORT algorithm to assess the level of immune signatures infiltration and got the possible function of IRDEGs which was analyzed through Gene Ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis. Protein-protein interaction (PPI) networks and six hub genes were identified in the Cytoscape plug-in. GSVA algorithm was performed to evaluate the potential pathways of six hub genes in ICH samples. The expression level of IL-7R chosen from six hub genes was further validated by Western blotting. The cell models of ICH were established for the research of IL-7/IL-7R signaling way. Results A total of six hub genes (ITGAX, ITGAM, CCR2, CD28, SELL, and IL-7R) were identified. IL-7R was highly expressed in the mice ICH group, as shown by immunoblotting. Next, we constructed ICH cell models in RAW264.7 cells and BV2 cells. After treatment with IL-7, iNOS expression (M1 marker) was greatly inhibited while Arg-1(M2 marker) was enhanced, and it might function via the JAK3/STAT5 signaling pathway. Conclusion The hypothesis is proposed that the IL-7/IL-7R signaling pathway might regulate the inflammatory process following ICH by regulating microglia polarization. Our study is limited and requires more in-depth experimental confirmation.
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Affiliation(s)
- Jie Cui
- Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People’s Republic of China
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People’s Republic of China
- NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People’s Republic of China
- Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006, People’s Republic of China
| | - Hongbin Wang
- Department of Emergency, Jiangyin Hospital of Traditional Chinese Medicine, Wuxi, 214400, People’s Republic of China
- Department of Intensive Care Unit, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People’s Republic of China
| | - Shiyao Liu
- Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People’s Republic of China
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People’s Republic of China
- NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People’s Republic of China
- Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006, People’s Republic of China
| | - Yiming Zhao
- Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People’s Republic of China
- National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People’s Republic of China
- NHC Key Laboratory of Thrombosis and Hemostasis, The First Affiliated Hospital of Soochow University, Suzhou, 215006, People’s Republic of China
- Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006, People’s Republic of China
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8
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Lopes KDP, Yu L, Shen X, Qiu Y, Tasaki S, Iatrou A, Beeri MS, Seyfried NT, Menon V, Wang Y, Schneider JA, Cantor H, Bennett DA. Associations of cortical SPP1 and ITGAX with cognition and common neuropathologies in older adults. Alzheimers Dement 2024; 20:525-537. [PMID: 37727065 PMCID: PMC10841499 DOI: 10.1002/alz.13474] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/15/2023] [Accepted: 08/21/2023] [Indexed: 09/21/2023]
Abstract
INTRODUCTION The secreted phosphoprotein 1 (SPP1) gene expressed by CD11c+ cells is known to be associated with microglia activation and neuroinflammatory diseases. As most studies rely on mouse models, we investigated these genes and proteins in the cortical brain tissue of older adults and their role in Alzheimer's disease (AD) and related disorders. METHODS We leveraged protein measurements, single-nuclei, and RNASeq data from the Religious Orders Study and Rush Memory and Aging Project (ROSMAP) of over 1200 samples for association analysis. RESULTS Expression of SPP1 and its encoded protein osteopontin were associated with faster cognitive decline and greater odds of common neuropathologies. At single-cell resolution, integrin subunit alpha X (ITGAX) was highly expressed in microglia, where specific subpopulations were associated with AD and cerebral amyloid angiopathy. DISCUSSION The study provides evidence of SPP1 and ITGAX association with cognitive decline and common neuropathologies identifying a microglial subset associated with disease.
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Affiliation(s)
- Katia de Paiva Lopes
- Rush Alzheimer's Disease CenterRush University Medical CenterChicagoIllinoisUSA
- Department of Neurological SciencesRush University Medical CenterChicagoIllinoisUSA
| | - Lei Yu
- Rush Alzheimer's Disease CenterRush University Medical CenterChicagoIllinoisUSA
- Department of Neurological SciencesRush University Medical CenterChicagoIllinoisUSA
| | - Xianli Shen
- Department of Cancer Immunology and VirologyDana‐Farber Cancer InstituteBostonMassachusettsUSA
- Department of ImmunologyHarvard Medical SchoolBostonMassachusettsUSA
| | - Yiguo Qiu
- Department of Cancer Immunology and VirologyDana‐Farber Cancer InstituteBostonMassachusettsUSA
- Department of ImmunologyHarvard Medical SchoolBostonMassachusettsUSA
- Chongqing International Institute for ImmunologyChongqingChina
| | - Shinya Tasaki
- Rush Alzheimer's Disease CenterRush University Medical CenterChicagoIllinoisUSA
- Department of Neurological SciencesRush University Medical CenterChicagoIllinoisUSA
| | - Artemis Iatrou
- Rush Alzheimer's Disease CenterRush University Medical CenterChicagoIllinoisUSA
- Department of Neurological SciencesRush University Medical CenterChicagoIllinoisUSA
- Department of Psychiatry, McLean HospitalHarvard Medical SchoolBelmontMassachusettsUSA
| | - Michal Schnaider Beeri
- Joseph Sagol Neuroscience Center, Sheba Medical CenterRamat GanIsrael
- Department of PsychiatryIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
- The Herbert and Jackeline Krieger Klein Alzheimer's Research CenterRutgers Biomedical and Health Sciences, Rutgers UniversityNew JerseyUSA
| | - Nicholas T. Seyfried
- Goizueta Alzheimer's Disease Research Center, Department of Neurology and Department of BiochemistryEmory University School of MedicineAtlantaGeorgiaUSA
| | - Vilas Menon
- Center for Translational and Computational NeuroimmunologyDepartment of Neurology & Taub Institute for Research on Alzheimer's disease and the Aging BrainColumbia University Irving Medical CenterNew YorkNew YorkUSA
| | - Yanling Wang
- Rush Alzheimer's Disease CenterRush University Medical CenterChicagoIllinoisUSA
- Department of Neurological SciencesRush University Medical CenterChicagoIllinoisUSA
| | - Julie A. Schneider
- Rush Alzheimer's Disease CenterRush University Medical CenterChicagoIllinoisUSA
- Department of Neurological SciencesRush University Medical CenterChicagoIllinoisUSA
- Department of PathologyRush University Medical CenterChicagoIllinoisUSA
| | - Harvey Cantor
- Department of Cancer Immunology and VirologyDana‐Farber Cancer InstituteBostonMassachusettsUSA
- Department of ImmunologyHarvard Medical SchoolBostonMassachusettsUSA
| | - David A. Bennett
- Rush Alzheimer's Disease CenterRush University Medical CenterChicagoIllinoisUSA
- Department of Neurological SciencesRush University Medical CenterChicagoIllinoisUSA
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9
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Fiorito AM, Fakra E, Sescousse G, Ibrahim EC, Rey R. Molecular mapping of a core transcriptional signature of microglia-specific genes in schizophrenia. Transl Psychiatry 2023; 13:386. [PMID: 38092734 PMCID: PMC10719376 DOI: 10.1038/s41398-023-02677-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 11/20/2023] [Accepted: 11/22/2023] [Indexed: 12/17/2023] Open
Abstract
Besides playing a central role in neuroinflammation, microglia regulate synaptic development and is involved in plasticity. Converging lines of evidence suggest that these different processes play a critical role in schizophrenia. Furthermore, previous studies reported altered transcription of microglia genes in schizophrenia, while microglia itself seems to be involved in the etiopathology of the disease. However, the regional specificity of these brain transcriptional abnormalities remains unclear. Moreover, it is unknown whether brain and peripheral expression of microglia genes are related. Thus, we investigated the expression of a pre-registered list of 10 genes from a core signature of human microglia both at brain and peripheral levels. We included 9 independent Gene Expression Omnibus datasets (764 samples obtained from 266 individuals with schizophrenia and 237 healthy controls) from 8 different brain regions and 3 peripheral tissues. We report evidence of a widespread transcriptional alteration of microglia genes both in brain tissues (we observed a decreased expression in the cerebellum, associative striatum, hippocampus, and parietal cortex of individuals with schizophrenia compared with healthy controls) and whole blood (characterized by a mixed altered expression pattern). Our results suggest that brain underexpression of microglia genes may represent a candidate transcriptional signature for schizophrenia. Moreover, the dual brain-whole blood transcriptional alterations of microglia/macrophage genes identified support the model of schizophrenia as a whole-body disorder and lend weight to the use of blood samples as a potential source of biological peripheral biomarkers.
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Affiliation(s)
- Anna M Fiorito
- Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR 5292, PSYR2 Team, University of Lyon, Lyon, France
- Centre Hospitalier Le Vinatier, Bron, France
| | - Eric Fakra
- Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR 5292, PSYR2 Team, University of Lyon, Lyon, France
- Department of Psychiatry, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Guillaume Sescousse
- Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR 5292, PSYR2 Team, University of Lyon, Lyon, France
- Centre Hospitalier Le Vinatier, Bron, France
| | - El Chérif Ibrahim
- Aix-Marseille Univ, CNRS, INT, Institut de Neurosciences de la Timone, Marseille, France
| | - Romain Rey
- Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR 5292, PSYR2 Team, University of Lyon, Lyon, France.
- Centre Hospitalier Le Vinatier, Bron, France.
- Fondation FondaMental, Créteil, France.
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10
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Ocañas SR, Pham KD, Cox JEJ, Keck AW, Ko S, Ampadu FA, Porter HL, Ansere VA, Kulpa A, Kellogg CM, Machalinski AH, Thomas MA, Wright Z, Chucair-Elliott AJ, Freeman WM. Microglial senescence contributes to female-biased neuroinflammation in the aging mouse hippocampus: implications for Alzheimer's disease. J Neuroinflammation 2023; 20:188. [PMID: 37587511 PMCID: PMC10433617 DOI: 10.1186/s12974-023-02870-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 08/03/2023] [Indexed: 08/18/2023] Open
Abstract
BACKGROUND Microglia, the brain's principal immune cells, have been implicated in the pathogenesis of Alzheimer's disease (AD), a condition shown to affect more females than males. Although sex differences in microglial function and transcriptomic programming have been described across development and in disease models of AD, no studies have comprehensively identified the sex divergences that emerge in the aging mouse hippocampus. Further, existing models of AD generally develop pathology (amyloid plaques and tau tangles) early in life and fail to recapitulate the aged brain environment associated with late-onset AD. Here, we examined and compared transcriptomic and translatomic sex effects in young and old murine hippocampal microglia. METHODS Hippocampal tissue from C57BL6/N and microglial NuTRAP mice of both sexes were collected at young (5-6 month-old [mo]) and old (22-25 mo) ages. Cell sorting and affinity purification techniques were used to isolate the microglial transcriptome and translatome for RNA-sequencing and differential expression analyses. Flow cytometry, qPCR, and imaging approaches were used to confirm the transcriptomic and translatomic findings. RESULTS There were marginal sex differences identified in the young hippocampal microglia, with most differentially expressed genes (DEGs) restricted to the sex chromosomes. Both sex chromosomally and autosomally encoded sex differences emerged with aging. These sex DEGs identified at old age were primarily female-biased and enriched in senescent and disease-associated microglial signatures. Normalized gene expression values can be accessed through a searchable web interface ( https://neuroepigenomics.omrf.org/ ). Pathway analyses identified upstream regulators induced to a greater extent in females than in males, including inflammatory mediators IFNG, TNF, and IL1B, as well as AD-risk genes TREM2 and APP. CONCLUSIONS These data suggest that female microglia adopt disease-associated and senescent phenotypes in the aging mouse hippocampus, even in the absence of disease pathology, to a greater extent than males. This sexually divergent microglial phenotype may explain the difference in susceptibility and disease progression in the case of AD pathology. Future studies will need to explore sex differences in microglial heterogeneity in response to AD pathology and determine how sex-specific regulators (i.e., sex chromosomal or hormonal) elicit these sex effects.
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Affiliation(s)
- Sarah R Ocañas
- Genes and Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Kevin D Pham
- Genes and Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
| | - Jillian E J Cox
- Genes and Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
- Graduate Program in Biomedical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Alex W Keck
- Genes and Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
| | - Sunghwan Ko
- Genes and Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
- Graduate Program in Biomedical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Felix A Ampadu
- Graduate Program in Biomedical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Hunter L Porter
- Genes and Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
| | - Victor A Ansere
- Genes and Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Adam Kulpa
- Genes and Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
| | - Collyn M Kellogg
- Genes and Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Adeline H Machalinski
- Genes and Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
| | - Manu A Thomas
- Genes and Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
| | - Zsabre Wright
- Genes and Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
| | - Ana J Chucair-Elliott
- Genes and Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA
| | - Willard M Freeman
- Genes and Human Disease Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA.
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- Oklahoma City Veterans Affairs Medical Center, Oklahoma City, OK, USA.
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11
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Li H, Ye T, Liu X, Guo R, Yang X, Li Y, Qi D, Wei Y, Zhu Y, Wen L, Cheng X. The role of signaling crosstalk of microglia in hippocampus on progression of ageing and Alzheimer's disease. J Pharm Anal 2023; 13:788-805. [PMID: 37577391 PMCID: PMC10422165 DOI: 10.1016/j.jpha.2023.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 05/08/2023] [Accepted: 05/12/2023] [Indexed: 08/15/2023] Open
Abstract
Based on single-cell sequencing of the hippocampi of 5× familiar Alzheimer's disease (5× FAD) and wild type mice at 2-, 12-, and 24-month of age, we found an increased percentage of microglia in aging and Alzheimer's disease (AD) mice. Blood brain barrier injury may also have contributed to this increase. Immune regulation by microglia plays a major role in the progression of aging and AD, according to the functions of 41 intersecting differentially expressed genes in microglia. Signaling crosstalk between C-C motif chemokine ligand (CCL) and major histocompatibility complex-1 bridges intercellular communication in the hippocampus during aging and AD. The amyloid precursor protein (APP) and colony stimulating factor (CSF) signals drive 5× FAD to deviate from aging track to AD occurrence among intercellular communication in hippocampus. Microglia are involved in the progression of aging and AD can be divided into 10 functional types. The strength of the interaction among microglial subtypes weakened with aging, and the CCL and CSF signaling pathways were the fundamental bridge of communication among microglial subtypes.
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Affiliation(s)
- He Li
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Tianyuan Ye
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Xingyang Liu
- Xiamen Key Laboratory for TCM Dampness Disease, Neurology & Immunology Research, Department of Traditional Chinese Medicine, Xiang'an Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Rui Guo
- Xiamen Key Laboratory for TCM Dampness Disease, Neurology & Immunology Research, Department of Traditional Chinese Medicine, Xiang'an Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Xiuzhao Yang
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Yangyi Li
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Dongmei Qi
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Yihua Wei
- Xiamen Key Laboratory for TCM Dampness Disease, Neurology & Immunology Research, Department of Traditional Chinese Medicine, Xiang'an Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Yifan Zhu
- Xiamen Key Laboratory for TCM Dampness Disease, Neurology & Immunology Research, Department of Traditional Chinese Medicine, Xiang'an Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Lei Wen
- Xiamen Key Laboratory for TCM Dampness Disease, Neurology & Immunology Research, Department of Traditional Chinese Medicine, Xiang'an Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, 361102, China
| | - Xiaorui Cheng
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
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12
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Ocañas SR, Pham KD, Cox JE, Keck AW, Ko S, Ampadu FA, Porter HL, Ansere VA, Kulpa A, Kellogg CM, Machalinski AH, Chucair-Elliott AJ, Freeman WM. Microglial senescence contributes to female-biased neuroinflammation in the aging mouse hippocampus: implications for Alzheimer's disease. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.07.531562. [PMID: 36945656 PMCID: PMC10028852 DOI: 10.1101/2023.03.07.531562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
Background Microglia, the brain's principal immune cells, have been implicated in the pathogenesis of Alzheimer's disease (AD), a condition shown to affect more females than males. Although sex differences in microglial function and transcriptomic programming have been described across development and in disease models of AD, no studies have comprehensively identified the sex divergences that emerge in the aging mouse hippocampus. Further, existing models of AD generally develop pathology (amyloid plaques and tau tangles) early in life and fail to recapitulate the aged brain environment associated with late-onset AD. Here, we examined and compared transcriptomic and translatomic sex effects in young and old murine hippocampal microglia. Methods Hippocampal tissue from C57BL6/N and microglial NuTRAP mice of both sexes were collected at young (5-6 month-old [mo]) and old (22-25 mo) ages. Cell sorting and affinity purification techniques were used to isolate the microglial transcriptome and translatome for RNA-sequencing and differential expression analyses. Flow cytometry, qPCR, and imaging approaches were used to confirm the transcriptomic and translatomic findings. Results There were marginal sex differences identified in the young hippocampal microglia, with most differentially expressed genes (DEGs) restricted to the sex chromosomes. Both sex chromosomally-and autosomally-encoded sex differences emerged with aging. These sex DEGs identified at old age were primarily female-biased and enriched in senescent and disease-associated microglial signatures. Normalized gene expression values can be accessed through a searchable web interface ( https://neuroepigenomics.omrf.org/ ). Pathway analyses identified upstream regulators induced to a greater extent in females than in males, including inflammatory mediators IFNG, TNF, and IL1B, as well as AD-risk genes TREM2 and APP. Conclusions These data suggest that female microglia adopt disease-associated and senescent phenotypes in the aging mouse hippocampus, even in the absence of disease pathology, to a greater extent than males. This sexually divergent microglial phenotype may explain the difference in susceptibility and disease progression in the case of AD pathology. Future studies will need to explore sex differences in microglial heterogeneity in response to AD pathology and determine how sex-specific regulators (i.e., sex chromosomal or hormonal) elicit these sex effects.
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Affiliation(s)
- Sarah R. Ocañas
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK USA
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Kevin D. Pham
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK USA
| | - Jillian E.J. Cox
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK USA
- Graduate Program in Biomedical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Alex W. Keck
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK USA
| | - Sunghwan Ko
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK USA
- Graduate Program in Biomedical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Felix A. Ampadu
- Graduate Program in Biomedical Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Hunter L. Porter
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK USA
| | - Victor A. Ansere
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK USA
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Adam Kulpa
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK USA
| | - Collyn M. Kellogg
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK USA
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Adeline H. Machalinski
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK USA
| | - Ana J. Chucair-Elliott
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK USA
| | - Willard M. Freeman
- Genes & Human Disease Program, Oklahoma Medical Research Foundation, Oklahoma City, OK USA
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
- Oklahoma City Veterans Affairs Medical Center, Oklahoma City, OK USA
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13
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Tsuda M, Masuda T, Kohno K. Microglial diversity in neuropathic pain. Trends Neurosci 2023:S0166-2236(23)00124-8. [PMID: 37244781 DOI: 10.1016/j.tins.2023.05.001] [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: 03/17/2023] [Revised: 04/17/2023] [Accepted: 05/02/2023] [Indexed: 05/29/2023]
Abstract
Microglia play pivotal roles in controlling CNS functions in diverse physiological and pathological contexts, including neuropathic pain, a chronic pain condition caused by lesions or diseases of the somatosensory nervous system. In this review article, we summarize evidence primarily from basic research on the role of microglia in the development and remission of neuropathic pain. The identification of a subset of microglia that emerged after pain development and that was necessary for remission of neuropathic pain highlights the highly divergent and dynamic nature of microglia in the course of neuropathic pain. Understanding microglial diversity in terms of gene expression, physiological states, and functional roles could lead to new strategies that aid in the diagnosis and management of neuropathic pain, and that may not have been anticipated from the viewpoint of targeting all microglia uniformly.
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Affiliation(s)
- Makoto Tsuda
- Department of Molecular and System Pharmacology, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan; Kyushu University Institute for Advanced Study, Fukuoka, Japan.
| | - Takahiro Masuda
- Division of Molecular Neuroimmunology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Keita Kohno
- Department of Molecular and System Pharmacology, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
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14
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Mader MMD, Napole A, Wu D, Shibuya Y, Scavetti A, Foltz A, Atkins M, Hahn O, Yoo Y, Danziger R, Tan C, Wyss-Coray T, Steinman L, Wernig M. Augmentation of a neuroprotective myeloid state by hematopoietic cell transplantation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.10.532123. [PMID: 36945385 PMCID: PMC10028976 DOI: 10.1101/2023.03.10.532123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
Multiple sclerosis (MS) is an autoimmune disease associated with inflammatory demyelination in the central nervous system (CNS). Autologous hematopoietic cell transplantation (HCT) is under investigation as a promising therapy for treatment-refractory MS. Here we identify a reactive myeloid state in chronic experimental autoimmune encephalitis (EAE) mice and MS patients that is surprisingly associated with neuroprotection and immune suppression. HCT in EAE mice leads to an enhancement of this myeloid state, as well as clinical improvement, reduction of demyelinated lesions, suppression of cytotoxic T cells, and amelioration of reactive astrogliosis reflected in reduced expression of EAE-associated gene signatures in oligodendrocytes and astrocytes. Further enhancement of myeloid cell incorporation into the CNS following a modified HCT protocol results in an even more consistent therapeutic effect corroborated by additional amplification of HCT-induced transcriptional changes, underlining myeloid-derived beneficial effects in the chronic phase of EAE. Replacement or manipulation of CNS myeloid cells thus represents an intriguing therapeutic direction for inflammatory demyelinating disease.
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Affiliation(s)
- Marius Marc-Daniel Mader
- Institute for Stem Cell Biology and Regenerative Medicine and
Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305,
USA
- Department of Pathology, Stanford University School of Medicine,
Stanford, CA 94305, USA
| | - Alan Napole
- Institute for Stem Cell Biology and Regenerative Medicine and
Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305,
USA
- Department of Pathology, Stanford University School of Medicine,
Stanford, CA 94305, USA
| | - Danwei Wu
- Institute for Stem Cell Biology and Regenerative Medicine and
Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305,
USA
- Department of Pathology, Stanford University School of Medicine,
Stanford, CA 94305, USA
- Department of Neurology and Neurosciences, Division of
Neuroimmunology and Multiple Sclerosis Center, Stanford University of Medicine, Stanford, CA
94305, USA
| | - Yohei Shibuya
- Institute for Stem Cell Biology and Regenerative Medicine and
Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305,
USA
- Department of Pathology, Stanford University School of Medicine,
Stanford, CA 94305, USA
| | - Alexa Scavetti
- Institute for Stem Cell Biology and Regenerative Medicine and
Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305,
USA
- Department of Pathology, Stanford University School of Medicine,
Stanford, CA 94305, USA
| | - Aulden Foltz
- Department of Neurology and Neurological Sciences, Stanford
University School of Medicine, Stanford, CA 94305, USA
- Veterans Administration Palo Alto Healthcare System, Palo Alto,
CA 94304, USA
| | - Micaiah Atkins
- Department of Neurology and Neurological Sciences, Stanford
University School of Medicine, Stanford, CA 94305, USA
- Veterans Administration Palo Alto Healthcare System, Palo Alto,
CA 94304, USA
| | - Oliver Hahn
- Department of Neurology and Neurological Sciences, Stanford
University School of Medicine, Stanford, CA 94305, USA
- Veterans Administration Palo Alto Healthcare System, Palo Alto,
CA 94304, USA
| | - Yongjin Yoo
- Institute for Stem Cell Biology and Regenerative Medicine and
Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305,
USA
- Department of Pathology, Stanford University School of Medicine,
Stanford, CA 94305, USA
| | - Ron Danziger
- Institute for Stem Cell Biology and Regenerative Medicine and
Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305,
USA
- Department of Pathology, Stanford University School of Medicine,
Stanford, CA 94305, USA
| | - Christina Tan
- Institute for Stem Cell Biology and Regenerative Medicine and
Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305,
USA
- Department of Pathology, Stanford University School of Medicine,
Stanford, CA 94305, USA
| | - Tony Wyss-Coray
- Department of Neurology and Neurological Sciences, Stanford
University School of Medicine, Stanford, CA 94305, USA
- Veterans Administration Palo Alto Healthcare System, Palo Alto,
CA 94304, USA
| | - Lawrence Steinman
- Department of Neurology and Neurosciences, Division of
Neuroimmunology and Multiple Sclerosis Center, Stanford University of Medicine, Stanford, CA
94305, USA
| | - Marius Wernig
- Institute for Stem Cell Biology and Regenerative Medicine and
Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305,
USA
- Department of Pathology, Stanford University School of Medicine,
Stanford, CA 94305, USA
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15
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Mechanistic Insights into the Role of OPN in Mediating Brain Damage via Triggering Lysosomal Damage in Microglia/Macrophage. Cells 2023; 12:cells12060854. [PMID: 36980197 PMCID: PMC10046941 DOI: 10.3390/cells12060854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 03/02/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
We previously found that osteopontin (OPN) played a role in hypoxia–ischemia (HI) brain damage. However, its underlying mechanism is still unknown. Bioinformatics analysis revealed that the OPN protein was linked to the lysosomal cathepsin B (CTSB) and galectin-3 (GAL-3) proteins after HI exposure. In the present study, we tested the hypothesis that OPN was able to play a critical role in the lysosomal damage of microglia/macrophages following HI insult in neonatal mice. The results showed that OPN expression was enhanced, especially in microglia/macrophages, and colocalized with lysosomal-associated membrane protein 1 (LAMP1) and GAL-3; this was accompanied by increased LAMP1 and GAL-3 expression, CTSB leakage, as well as impairment of autophagic flux in the early stage of the HI process. In addition, the knockdown of OPN expression markedly restored lysosomal function with significant improvements in the autophagic flux after HI insult. Interestingly, cleavage of OPN was observed in the ipsilateral cortex following HI. The wild-type OPN and C-terminal OPN (Leu152-Asn294), rather than N-terminal OPN (Met1-Gly151), interacted with GAL-3 to induce lysosomal damage. Furthermore, the secreted OPN stimulated lysosomal damage by binding to CD44 in microglia in vitro. Collectively, this study demonstrated that upregulated OPN in microglia/macrophages and its cleavage product was able to interact with GAL-3, and secreted OPN combined with CD44, leading to lysosomal damage and exacerbating autophagosome accumulation after HI exposure.
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16
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De Schepper S, Ge JZ, Crowley G, Ferreira LSS, Garceau D, Toomey CE, Sokolova D, Rueda-Carrasco J, Shin SH, Kim JS, Childs T, Lashley T, Burden JJ, Sasner M, Sala Frigerio C, Jung S, Hong S. Perivascular cells induce microglial phagocytic states and synaptic engulfment via SPP1 in mouse models of Alzheimer's disease. Nat Neurosci 2023; 26:406-415. [PMID: 36747024 PMCID: PMC9991912 DOI: 10.1038/s41593-023-01257-z] [Citation(s) in RCA: 46] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 01/10/2023] [Indexed: 02/08/2023]
Abstract
Alzheimer's disease (AD) is characterized by synaptic loss, which can result from dysfunctional microglial phagocytosis and complement activation. However, what signals drive aberrant microglia-mediated engulfment of synapses in AD is unclear. Here we report that secreted phosphoprotein 1 (SPP1/osteopontin) is upregulated predominantly by perivascular macrophages and, to a lesser extent, by perivascular fibroblasts. Perivascular SPP1 is required for microglia to engulf synapses and upregulate phagocytic markers including C1qa, Grn and Ctsb in presence of amyloid-β oligomers. Absence of Spp1 expression in AD mouse models results in prevention of synaptic loss. Furthermore, single-cell RNA sequencing and putative cell-cell interaction analyses reveal that perivascular SPP1 induces microglial phagocytic states in the hippocampus of a mouse model of AD. Altogether, we suggest a functional role for SPP1 in perivascular cells-to-microglia crosstalk, whereby SPP1 modulates microglia-mediated synaptic engulfment in mouse models of AD.
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Affiliation(s)
- Sebastiaan De Schepper
- UK Dementia Research Institute, Institute of Neurology, University College London, London, UK
| | - Judy Z Ge
- UK Dementia Research Institute, Institute of Neurology, University College London, London, UK
| | - Gerard Crowley
- UK Dementia Research Institute, Institute of Neurology, University College London, London, UK
| | - Laís S S Ferreira
- UK Dementia Research Institute, Institute of Neurology, University College London, London, UK
| | | | - Christina E Toomey
- The Queen Square Brain Bank for Neurological Disorders, Department of Clinical and Movement Neuroscience, UCL Queen Square Institute of Neurology, London, UK
- Department of Clinical and Movement Neuroscience, UCL Queen Square Institute of Neurology, London, UK
| | - Dimitra Sokolova
- UK Dementia Research Institute, Institute of Neurology, University College London, London, UK
| | - Javier Rueda-Carrasco
- UK Dementia Research Institute, Institute of Neurology, University College London, London, UK
| | - Sun-Hye Shin
- Department of Immunology and Regenerative Biology (IRB), Weizmann Institute of Science, Rehovot, Israel
| | - Jung-Seok Kim
- Department of Immunology and Regenerative Biology (IRB), Weizmann Institute of Science, Rehovot, Israel
| | - Thomas Childs
- UK Dementia Research Institute, Institute of Neurology, University College London, London, UK
| | - Tammaryn Lashley
- The Queen Square Brain Bank for Neurological Disorders, Department of Clinical and Movement Neuroscience, UCL Queen Square Institute of Neurology, London, UK
- Department of Neurodegenerative diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Jemima J Burden
- Laboratory for Molecular Cell Biology, University College London, London, UK
| | | | - Carlo Sala Frigerio
- UK Dementia Research Institute, Institute of Neurology, University College London, London, UK
| | - Steffen Jung
- Department of Immunology and Regenerative Biology (IRB), Weizmann Institute of Science, Rehovot, Israel
| | - Soyon Hong
- UK Dementia Research Institute, Institute of Neurology, University College London, London, UK.
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McSweeney C, Chen M, Dong F, Sebastian A, Reynolds DJ, Mott J, Pei Z, Zou J, Shi Y, Mao Y. Transcriptomic Analyses of Brains of RBM8A Conditional Knockout Mice at Different Developmental Stages Reveal Conserved Signaling Pathways Contributing to Neurodevelopmental Diseases. Int J Mol Sci 2023; 24:4600. [PMID: 36902031 PMCID: PMC10003467 DOI: 10.3390/ijms24054600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/20/2023] [Accepted: 02/22/2023] [Indexed: 03/03/2023] Open
Abstract
RNA-binding motif 8A (RBM8A) is a core component of the exon junction complex (EJC) that binds pre-mRNAs and regulates their splicing, transport, translation, and nonsense-mediated decay (NMD). Dysfunction in the core proteins has been linked to several detriments in brain development and neuropsychiatric diseases. To understand the functional role of Rbm8a in brain development, we have generated brain-specific Rbm8a knockout mice and used next-generation RNA-sequencing to identify differentially expressed genes (DEGs) in mice with heterozygous, conditional knockout (cKO) of Rbm8a in the brain at postnatal day 17 (P17) and at embryonic day 12. Additionally, we analyzed enriched gene clusters and signaling pathways within the DEGs. At the P17 time point, between the control and cKO mice, about 251 significant DEGs were identified. At E12, only 25 DEGs were identified in the hindbrain samples. Bioinformatics analyses have revealed many signaling pathways related to the central nervous system (CNS). When E12 and P17 results were compared, three DEGs, Spp1, Gpnmb, and Top2a, appeared to peak at different developmental time points in the Rbm8a cKO mice. Enrichment analyses suggested altered activity in pathways affecting cellular proliferation, differentiation, and survival. The results support the hypothesis that loss of Rbm8a causes decreased cellular proliferation, increased apoptosis, and early differentiation of neuronal subtypes, which may lead ultimately to an altered neuronal subtype composition in the brain.
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Affiliation(s)
- Colleen McSweeney
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
| | - Miranda Chen
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
| | - Fengping Dong
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
- Department of Genetics, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Aswathy Sebastian
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA 16802, USA
| | - Derrick James Reynolds
- Department of Microbiology & Molecular Genetics, School of Medicine, University of California, Irvine, CA 92697, USA
| | - Jennifer Mott
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
| | - Zifei Pei
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
| | - Jizhong Zou
- Systems Biology Center, National Heart, Lung, and Blood Institute, NIH, Bethesda, Rockville, MD 20892, USA
| | - Yongsheng Shi
- Department of Microbiology & Molecular Genetics, School of Medicine, University of California, Irvine, CA 92697, USA
| | - Yingwei Mao
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
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Qiu Y, Shen X, Ravid O, Atrakchi D, Rand D, Wight AE, Kim HJ, Liraz-Zaltsman S, Cooper I, Schnaider Beeri M, Cantor H. Definition of the contribution of an Osteopontin-producing CD11c + microglial subset to Alzheimer's disease. Proc Natl Acad Sci U S A 2023; 120:e2218915120. [PMID: 36730200 PMCID: PMC9963365 DOI: 10.1073/pnas.2218915120] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/15/2022] [Indexed: 02/03/2023] Open
Abstract
Alzheimer's disease (AD) is the most common form of incurable dementia and represents a critical public health issue as the world's population ages. Although microglial dysregulation is a cardinal feature of AD, the extensive heterogeneity of these immunological cells in the brain has impeded our understanding of their contribution to this disease. Here, we identify a pathogenic microglial subset which expresses the CD11c surface marker as the sole producer of Osteopontin (OPN) in the 5XFAD mouse model of AD. OPN production divides Disease-Associated Microglia (DAM) into two functionally distinct subsets, i.e., a protective CD11c+OPN- subset that robustly ingests amyloid β (Aβ) in a noninflammatory fashion and a pathogenic CD11c+OPN+ subset that produces proinflammatory cytokines and fails to ingest significant amounts of Aβ. Genetic ablation of OPN or administration of monoclonal anti-OPN antibody to 5XFAD mice reduces proinflammatory microglia, plaque formation, and numbers of dystrophic neurites and results in improved cognitive function. Analysis of brain tissue from AD patients indicates that levels of OPN-producing CD11c+ microglia correlate strongly with the degree of cognitive deficit and AD neuropathology. These findings define an OPN-dependent pathway to disease driven by a distinct microglial subset, and identify OPN as a novel therapeutic target for potentially effective immunotherapy to treat AD.
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Affiliation(s)
- Yiguo Qiu
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA02215
- Department of Immunology, Harvard Medical School, Boston, MA02115
| | - Xianli Shen
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA02215
- Department of Immunology, Harvard Medical School, Boston, MA02115
| | - Orly Ravid
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Ramat Gan5211401, Israel
| | - Dana Atrakchi
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Ramat Gan5211401, Israel
| | - Daniel Rand
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Ramat Gan5211401, Israel
| | - Andrew E. Wight
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA02215
- Department of Immunology, Harvard Medical School, Boston, MA02115
| | - Hye-Jung Kim
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA02215
- Department of Immunology, Harvard Medical School, Boston, MA02115
| | - Sigal Liraz-Zaltsman
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Ramat Gan5211401, Israel
- Department of Pharmacology, The Institute for Drug Research, The Hebrew University of Jerusalem, Jerusalem9103401, Israel
- Department of Sports Therapy, Institute for Health and Medical Professions, Ono Academic College, Kiryat Ono5500003, Israel
| | - Itzik Cooper
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Ramat Gan5211401, Israel
- School of Psychology, Interdisciplinary Center, Herzliya4673304, Israel
- The Nehemia Rubin Excellence in Biomedical Research, Sheba Medical Center, Tel-Hashomer52621, Israel
| | - Michal Schnaider Beeri
- The Joseph Sagol Neuroscience Center, Sheba Medical Center, Ramat Gan5211401, Israel
- School of Psychology, Interdisciplinary Center, Herzliya4673304, Israel
- Department of Psychiatry, The Icahn School of Medicine at Mount Sinai, New York, NY10029
| | - Harvey Cantor
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA02215
- Department of Immunology, Harvard Medical School, Boston, MA02115
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Fox HS, Niu M, Morsey BM, Lamberty BG, Emanuel K, Periyasamy P, Callen S, Acharya A, Kubik G, Eudy J, Guda C, Dyavar SR, Fletcher CV, Byrareddy SN, Buch S. Morphine suppresses peripheral responses and transforms brain myeloid gene expression to favor neuropathogenesis in SIV infection. Front Immunol 2022; 13:1012884. [PMID: 36466814 PMCID: PMC9709286 DOI: 10.3389/fimmu.2022.1012884] [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: 08/06/2022] [Accepted: 10/31/2022] [Indexed: 11/18/2022] Open
Abstract
The twin pandemics of opioid abuse and HIV infection can have devastating effects on physiological systems, including on the brain. Our previous work found that morphine increased the viral reservoir in the brains of treated SIV-infected macaques. In this study, we investigated the interaction of morphine and SIV to identify novel host-specific targets using a multimodal approach. We probed systemic parameters and performed single-cell examination of the targets for infection in the brain, microglia and macrophages. Morphine treatment created an immunosuppressive environment, blunting initial responses to infection, which persisted during antiretroviral treatment. Antiretroviral drug concentrations and penetration into the cerebrospinal fluid and brain were unchanged by morphine treatment. Interestingly, the transcriptional signature of both microglia and brain macrophages was transformed to one of a neurodegenerative phenotype. Notably, the expression of osteopontin, a pleiotropic cytokine, was significantly elevated in microglia. This was especially notable in the white matter, which is also dually affected by HIV and opioids. Increased osteopontin expression was linked to numerous HIV neuropathogenic mechanisms, including those that can maintain a viral reservoir. The opioid morphine is detrimental to SIV/HIV infection, especially in the brain.
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Affiliation(s)
- Howard S. Fox
- Departments of Neurological Sciences, University of Nebraska Medical Center, Omaha, NE, United States,*Correspondence: Howard S. Fox,
| | - Meng Niu
- Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, United States
| | - Brenda M. Morsey
- Departments of Neurological Sciences, University of Nebraska Medical Center, Omaha, NE, United States
| | - Benjamin G. Lamberty
- Departments of Neurological Sciences, University of Nebraska Medical Center, Omaha, NE, United States
| | - Katy Emanuel
- Departments of Neurological Sciences, University of Nebraska Medical Center, Omaha, NE, United States
| | - Palsamy Periyasamy
- Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Shannon Callen
- Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Arpan Acharya
- Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Gregory Kubik
- The Genomics Core Facility, University of Nebraska Medical Center, Omaha, NE, United States
| | - James Eudy
- Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, United States
| | - Chittibabu Guda
- Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, United States
| | - Shetty Ravi Dyavar
- The Antiviral Pharmacology Laboratory, University of Nebraska Medical Center, Omaha, NE, United States
| | - Courtney V. Fletcher
- The Antiviral Pharmacology Laboratory, University of Nebraska Medical Center, Omaha, NE, United States
| | - Siddappa N. Byrareddy
- Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Shilpa Buch
- Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
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20
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Rosmus DD, Lange C, Ludwig F, Ajami B, Wieghofer P. The Role of Osteopontin in Microglia Biology: Current Concepts and Future Perspectives. Biomedicines 2022; 10:biomedicines10040840. [PMID: 35453590 PMCID: PMC9027630 DOI: 10.3390/biomedicines10040840] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/26/2022] [Accepted: 03/27/2022] [Indexed: 12/14/2022] Open
Abstract
The innate immune landscape of the central nervous system (CNS), including the brain and the retina, consists of different myeloid cell populations with distinct tasks to fulfill. Whereas the CNS borders harbor extraparenchymal CNS-associated macrophages whose main duty is to build up a defense against invading pathogens and other damaging factors from the periphery, the resident immune cells of the CNS parenchyma and the retina, microglia, are highly dynamic cells with a plethora of functions during homeostasis and disease. Therefore, microglia are constantly sensing their environment and closely interacting with surrounding cells, which is in part mediated by soluble factors. One of these factors is Osteopontin (OPN), a multifunctional protein that is produced by different cell types in the CNS, including microglia, and is upregulated in neurodegenerative and neuroinflammatory conditions. In this review, we discuss the current literature about the interaction between microglia and OPN in homeostasis and several disease entities, including multiple sclerosis (MS), Alzheimer’s and cerebrovascular diseases (AD, CVD), amyotrophic lateral sclerosis (ALS), age-related macular degeneration (AMD) and diabetic retinopathy (DR), in the context of the molecular pathways involved in OPN signaling shaping the function of microglia. As nearly all CNS diseases are characterized by pathological alterations in microglial cells, accompanied by the disturbance of the homeostatic microglia phenotype, the emergence of disease-associated microglia (DAM) states and their interplay with factors shaping the DAM-signature, such as OPN, is of great interest for therapeutical interventions in the future.
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Affiliation(s)
| | - Clemens Lange
- Eye Center, Freiburg Medical Center, University of Freiburg, 79106 Freiburg, Germany; (C.L.); (F.L.)
- Ophtha-Lab, Department of Ophthalmology, St. Franziskus Hospital, 48145 Muenster, Germany
| | - Franziska Ludwig
- Eye Center, Freiburg Medical Center, University of Freiburg, 79106 Freiburg, Germany; (C.L.); (F.L.)
| | - Bahareh Ajami
- Department of Microbiology and Immunology, Oregon Health and Science University, Portland, OR 97239, USA;
| | - Peter Wieghofer
- Institute of Anatomy, Leipzig University, 04103 Leipzig, Germany;
- Cellular Neuroanatomy, Institute of Theoretical Medicine, Medical Faculty, Augsburg University, 86159 Augsburg, Germany
- Correspondence:
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