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Al-Dalahmah O, Lam M, McInvale JJ, Qu W, Nguyen T, Mun JY, Kwon S, Ifediora N, Mahajan A, Humala N, Winters T, Angeles E, Jakubiak KA, Kühn R, Kim YA, De Rosa MC, Doege CA, Paryani F, Flowers X, Dovas A, Mela A, Lu H, DeTure MA, Vonsattel JP, Wszolek ZK, Dickson DW, Kuhlmann T, Zaehres H, Schöler HR, Sproul AA, Siegelin MD, De Jager PL, Goldman JE, Menon V, Canoll P, Hargus G. Osteopontin drives neuroinflammation and cell loss in MAPT-N279K frontotemporal dementia patient neurons. Cell Stem Cell 2024; 31:676-693.e10. [PMID: 38626772 DOI: 10.1016/j.stem.2024.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 01/07/2024] [Accepted: 03/19/2024] [Indexed: 05/05/2024]
Abstract
Frontotemporal dementia (FTD) is an incurable group of early-onset dementias that can be caused by the deposition of hyperphosphorylated tau in patient brains. However, the mechanisms leading to neurodegeneration remain largely unknown. Here, we combined single-cell analyses of FTD patient brains with a stem cell culture and transplantation model of FTD. We identified disease phenotypes in FTD neurons carrying the MAPT-N279K mutation, which were related to oxidative stress, oxidative phosphorylation, and neuroinflammation with an upregulation of the inflammation-associated protein osteopontin (OPN). Human FTD neurons survived less and elicited an increased microglial response after transplantation into the mouse forebrain, which we further characterized by single nucleus RNA sequencing of microdissected grafts. Notably, downregulation of OPN in engrafted FTD neurons resulted in improved engraftment and reduced microglial infiltration, indicating an immune-modulatory role of OPN in patient neurons, which may represent a potential therapeutic target in FTD.
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Affiliation(s)
- Osama Al-Dalahmah
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA; Taub Institute for Research on Alzheimer's Disease & the Aging Brain, Columbia University, New York, NY 10032, USA
| | - Matti Lam
- Center for Translational & Computational Neuroimmunology, Department of Neurology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Julie J McInvale
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Wenhui Qu
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Trang Nguyen
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Jeong-Yeon Mun
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Sam Kwon
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Nkechime Ifediora
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Aayushi Mahajan
- Department of Neurosurgery, Columbia University, New York, NY 10032, USA
| | - Nelson Humala
- Department of Neurosurgery, Columbia University, New York, NY 10032, USA
| | - Tristan Winters
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Ellen Angeles
- Taub Institute for Research on Alzheimer's Disease & the Aging Brain, Columbia University, New York, NY 10032, USA
| | - Kelly A Jakubiak
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Rebekka Kühn
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Yoon A Kim
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Maria Caterina De Rosa
- Division of Molecular Genetics, Department of Pediatrics, Columbia University, New York, NY 10032, USA
| | - Claudia A Doege
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Fahad Paryani
- Center for Translational & Computational Neuroimmunology, Department of Neurology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Xena Flowers
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Athanassios Dovas
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Angeliki Mela
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Hong Lu
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Michael A DeTure
- Department of Neuroscience, The Mayo Clinic Florida, Jacksonville, FL 32224, USA
| | - Jean Paul Vonsattel
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Zbigniew K Wszolek
- Department of Neurology, The Mayo Clinic Florida, Jacksonville, FL 32224, USA
| | - Dennis W Dickson
- Department of Neuroscience, The Mayo Clinic Florida, Jacksonville, FL 32224, USA
| | - Tanja Kuhlmann
- Institute of Neuropathology, University Hospital Münster, Münster 48149, Germany
| | - Holm Zaehres
- Institute of Anatomy, Ruhr University Bochum, Medical Faculty, Bochum 44801, Germany; Max Planck Institute for Molecular Biomedicine, Münster 48149, Germany
| | - Hans R Schöler
- Max Planck Institute for Molecular Biomedicine, Münster 48149, Germany
| | - Andrew A Sproul
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA; Taub Institute for Research on Alzheimer's Disease & the Aging Brain, Columbia University, New York, NY 10032, USA
| | - Markus D Siegelin
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Philip L De Jager
- Taub Institute for Research on Alzheimer's Disease & the Aging Brain, Columbia University, New York, NY 10032, USA; Center for Translational & Computational Neuroimmunology, Department of Neurology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - James E Goldman
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA; Taub Institute for Research on Alzheimer's Disease & the Aging Brain, Columbia University, New York, NY 10032, USA
| | - Vilas Menon
- Taub Institute for Research on Alzheimer's Disease & the Aging Brain, Columbia University, New York, NY 10032, USA; Center for Translational & Computational Neuroimmunology, Department of Neurology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Peter Canoll
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA
| | - Gunnar Hargus
- Department of Pathology & Cell Biology, Columbia University, New York, NY 10032, USA; Taub Institute for Research on Alzheimer's Disease & the Aging Brain, Columbia University, New York, NY 10032, USA.
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2
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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3
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Song Y, Wang ZY, Luo J, Han WC, Wang XY, Yin C, Zhao WN, Hu SW, Zhang Q, Li YQ, Cao JL. CWC22-Mediated Alternative Splicing of Spp1 Regulates Nociception in Inflammatory Pain. Neuroscience 2023; 535:50-62. [PMID: 37838283 DOI: 10.1016/j.neuroscience.2023.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 10/05/2023] [Accepted: 10/09/2023] [Indexed: 10/16/2023]
Abstract
Increasing evidence suggests that alternative splicing plays a critical role in pain, but its underlying mechanism remains elusive. Herein, we employed complete Freund's adjuvant (CFA) to induce inflammatory pain in mice. A combination of genomics research techniques, lentivirus-based genetic manipulations, behavioral tests, and molecular biological technologies confirmed that splicing factor Cwc22 mRNA and CWC22 protein were elevated in the spinal dorsal horn at 3 days after CFA injection. Knockdown of spinal CWC22 by lentivirus transfection (lenti-shCwc22) reversed CFA-induced thermal hyperalgesia and mechanical allodynia, whereas upregulation of spinal CWC22 (lenti-Cwc22) in naïve mice precipitated pain. Comprehensive transcriptome and genome analysis identified the secreted phosphoprotein 1 (Spp1) as a potential gene of CWC22-mediated alternative splicing, however, only Spp1 splicing variant 4 (Spp1 V4) was involved in thermal and mechanical nociceptive regulation. In conclusion, our findings demonstrate that spinal CWC22 regulates Spp1 V4 to participate in CFA-induced inflammatory pain. Blocking CWC22 or CWC22-mediated alternative splicing may provide a novel therapeutic target for the treatment of persistent inflammatory pain.
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Affiliation(s)
- Yu Song
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China; Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China; Department of Anesthesiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province 221002, China
| | - Zhi-Yong Wang
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China; Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China; Department of Anesthesiology, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu Province 210008, China
| | - Jun Luo
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China; Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China; Department of Critical Care Medicine, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province 221002, China
| | - Wen-Can Han
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China; Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China
| | - Xiao-Yi Wang
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China; Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China; Department of Anesthesiology, Gulou Hospital Affiliated to Medical College of Nanjing University, Nanjing, Jiangsu Province 210008, China
| | - Cui Yin
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China; Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China
| | - Wei-Nan Zhao
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China; Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China
| | - Su-Wan Hu
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China; Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China
| | - Qi Zhang
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China; Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China
| | - Yan-Qiang Li
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China; Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China.
| | - Jun-Li Cao
- Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China; Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, Xuzhou, Jiangsu Province 221004, China.
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Lalwani RC, Volmar CH, Wahlestedt C, Webster KA, Shehadeh LA. Contextualizing the Role of Osteopontin in the Inflammatory Responses of Alzheimer's Disease. Biomedicines 2023; 11:3232. [PMID: 38137453 PMCID: PMC10741223 DOI: 10.3390/biomedicines11123232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/01/2023] [Accepted: 12/03/2023] [Indexed: 12/24/2023] Open
Abstract
Alzheimer's disease (AD) is characterized by progressive accumulations of extracellular amyloid-beta (Aβ) aggregates from soluble oligomers to insoluble plaques and hyperphosphorylated intraneuronal tau, also from soluble oligomers to insoluble neurofibrillary tangles (NFTs). Tau and Aβ complexes spread from the entorhinal cortex of the brain to interconnected regions, where they bind pattern recognition receptors on microglia and astroglia to trigger inflammation and neurotoxicity that ultimately lead to neurodegeneration and clinical AD. Systemic inflammation is initiated by Aβ's egress into the circulation, which may be secondary to microglial activation and can confer both destructive and reparative actions. Microglial activation pathways and downstream drivers of Aβ/NFT neurotoxicity, including inflammatory regulators, are primary targets for AD therapy. Osteopontin (OPN), an inflammatory cytokine and biomarker of AD, is implicated in Aβ clearance and toxicity, microglial activation, and inflammation, and is considered to be a potential therapeutic target. Here, using the most relevant works from the literature, we review and contextualize the evidence for a central role of OPN and associated inflammation in AD.
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Affiliation(s)
- Roshni C. Lalwani
- Interdisciplinary Stem Cell Institute, Leonard M. Miller School of Medicine, University of Miami, Miami, FL 33136, USA;
| | - Claude-Henry Volmar
- Department of Psychiatry, Leonard M. Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (C.-H.V.); (C.W.)
- Center for Therapeutic Innovation, Leonard M. Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Claes Wahlestedt
- Department of Psychiatry, Leonard M. Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (C.-H.V.); (C.W.)
- Center for Therapeutic Innovation, Leonard M. Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Keith A. Webster
- Integene International Holdings, LLC, Miami, FL 33137, USA;
- Department of Ophthalmology, Baylor College of Medicine, Houston, TX 77030, USA
- Everglades BioPharma, Houston, TX 77098, USA
| | - Lina A. Shehadeh
- Interdisciplinary Stem Cell Institute, Leonard M. Miller School of Medicine, University of Miami, Miami, FL 33136, USA;
- Department of Medicine, Leonard M. Miller School of Medicine, University of Miami, Miami, FL 33136, USA
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Cao Y, Zhang H, Tang XH, Tu GL, Tian Y, Luo GH, Wang YD, Wang Z, An LY, Luo MX, Tang L. Alterations in the balance of sex hormones may affect rat prostatic inflammation and fibrosis, and osteopontin might be involved in this process. Int Urol Nephrol 2023; 55:2355-2365. [PMID: 36890408 DOI: 10.1007/s11255-023-03544-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 02/28/2023] [Indexed: 03/10/2023]
Abstract
OBJECTIVE This study aimed to investigate the effects of sex hormone imbalance on rat prostatic inflammation and fibrosis and identify the key molecules involved. METHODS Castrated Sprague-Dawley (SD) rats were treated with a constant dose of oestradiol (E2) and different doses of dihydrotestosterone (DHT) to achieve different oestrogen/androgen ratios. After 8 weeks, serum E2 and DHT concentrations, relative seminal vesicle weights, histopathological changes and inflammation were measured, collagen fiber content and oestrogen receptor (ER) and androgen receptor (AR) expression were detected, mRNA sequencing and bioinformatics analysis were performed to identify differentially expressed genes (DEGs). RESULTS The severity of inflammation in the rat dorsolateral prostate (DLP) was higher, collagen fibre content and ER expression in the rat DLP and prostatic urethra were increased and AR expression in the rat DLP was decreased in the 1:1 E2/DHT-treated group than that in the 1:10 E2/DHT-treated group. RNA-seq analysis identified 487 DEGs, and striking increases in the expression of mRNAs encoding collagen, collagen synthesis and degradation enzymes, growth factors and binding proteins, cytokines and chemokines, and cell-surface molecules were confirmed in the 1:1 E2/DHT-treated group compared to the 1:10 E2/DHT-treated group. mRNA expression of secreted phosphoprotein 1 (Spp1) and protein expression of osteopontin (OPN, encoded by Spp1) were increased in the 1:1 E2/DHT-treated group compared to the 1:10 E2/DHT-treated group, and Spp1 expression correlated positively with Mmp7, Cxcl6 and Igfn1 expression. CONCLUSIONS The imbalance in the oestrogen/androgen ratio may affect rat prostatic inflammation and fibrosis, and OPN might be involved in this process.
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Affiliation(s)
- Ying Cao
- Guizhou University Medical College, Guiyang, 550025, China.
| | - Heng Zhang
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, 550002, China
| | - Xiao-Hu Tang
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, 550002, China
| | - Gui-Lan Tu
- Department of Pathology, Guizhou Provincial People's Hospital, Guiyang, 550002, China
| | - Ye Tian
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, 550002, China
| | - Guang-Heng Luo
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, 550002, China
| | - Yan-Dong Wang
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, 550002, China
| | - Zhen Wang
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, 550002, China
| | - Lin-Yue An
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, 550002, China
| | - Mu-Xia Luo
- Guizhou University Medical College, Guiyang, 550025, China
| | - Lei Tang
- Guizhou University Medical College, Guiyang, 550025, China
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Theune WC, Frost MP, Trakhtenberg EF. Transcriptomic profiling of retinal cells reveals a subpopulation of microglia/macrophages expressing Rbpms marker of retinal ganglion cells (RGCs) that confound identification of RGCs. Brain Res 2023; 1811:148377. [PMID: 37121423 DOI: 10.1016/j.brainres.2023.148377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/09/2023] [Accepted: 04/25/2023] [Indexed: 05/02/2023]
Abstract
Analysis of retinal ganglion cells (RGCs) by scRNA-seq is emerging as a state-of-the-art method for studying RGC biology and subtypes, as well as for studying the mechanisms of neuroprotection and axon regeneration in the central nervous system (CNS). Rbpms has been established as a pan-RGC marker, and Spp1 has been established as an αRGC type and macrophage marker. Here, we analyzed by scRNA-seq retinal microglia and macrophages, and found Rbpms+ subpopulations of retinal microglia/macrophages, which pose a potential pitfall in scRNA-seq studies involving RGCs. We performed comparative analysis of cellular identity of the presumed RGC cells isolated in recent scRNA-seq studies, and found that Rbpms+ microglia/macrophages confounded identification of RGCs. We also showed using immunohistological analysis that, Rbpms protein localizes to stress granules in a subpopulation of retinal microglia after optic nerve injury, which was further supported by bioinformatics analysis identifying stress granule-associated genes enriched in the Rbpms+ microglia/macrophages. Our findings suggest that the identification of Rbpms+ RGCs by immunostaining after optic nerve injury should exclude cells in which Rbpms signal is restricted to a subcellular granule, and include only those cells in which the Rbpms signal is labeling cell soma diffusely. Finally, we provide solutions for circumventing this potential pitfall of Rbpm-expressing microglia/macrophages in scRNA-seq studies, by including in RGC and αRGC selection criteria other pan-RGC and αRGC markers.
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Affiliation(s)
- William C Theune
- Department of Neuroscience, University of Connecticut School of Medicine, 263 Farmington Ave., Farmington, CT, 06030, USA
| | - Matthew P Frost
- Department of Neuroscience, University of Connecticut School of Medicine, 263 Farmington Ave., Farmington, CT, 06030, USA
| | - Ephraim F Trakhtenberg
- Department of Neuroscience, University of Connecticut School of Medicine, 263 Farmington Ave., Farmington, CT, 06030, USA.
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7
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Zhang Z, Cao Z, Hou L, Song M, Zhou Y, Chen Y, Hu H, Hou Y, Liu Y, Li B, Song X, Ge W, Li B, Jiang X, Yang J, Song D, Zhang X, Pang J, Zhang T, Zhang H, Yang P, Wang J, Wang C. Adenovirus-mediated Overexpression of FcγRIIB Attenuates Pulmonary Inflammation and Fibrosis. Am J Respir Cell Mol Biol 2023; 68:213-227. [PMID: 36227848 DOI: 10.1165/rcmb.2022-0056oc] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Progressive fibrosing interstitial lung diseases (PF-ILDs) result in high mortality and lack effective therapies. The pathogenesis of PF-ILDs involves macrophages driving inflammation and irreversible fibrosis. Fc-γ receptors (FcγRs) regulate macrophages and inflammation, but their roles in PF-ILDs remain unclear. We characterized the expression of FcγRs and found upregulated FcγRIIB in human and mouse lungs after exposure to silica. FcγRIIB deficiency aggravated lung dysfunction, inflammation, and fibrosis in silica-exposed mice. Using single-cell transcriptomics and in vitro experiments, FcγRIIB was found in alveolar macrophages, where it regulated the expression of fibrosis-related genes Spp1 and Ctss. In mice with macrophage-specific overexpression of FcγRIIB and in mice treated with adenovirus by intratracheal instillation to upregulate FcγRIIB, silica-induced functional and histological changes were ameliorated. Our data from three genetic models and a therapeutic model suggest that FcγRIIB plays a protective role that can be enhanced by adenoviral overexpression, representing a potential therapeutic strategy for PF-ILDs.
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Affiliation(s)
- Zhe Zhang
- Department of Pulmonary and Critical Care Medicine, The First Hospital of Shanxi Medical University, Taiyuan, China.,Department of Physiology and.,Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.,National Health Commission Key Laboratory of Pneumoconiosis, Taiyuan, China
| | | | - Lin Hou
- Department of Physiology and
| | - Meiyue Song
- Department of Physiology and.,Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yitian Zhou
- Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yiling Chen
- Department of Physiology and.,Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiao tong University, Xi'an, China; and
| | - Huiyuan Hu
- Department of Physiology and.,Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiao tong University, Xi'an, China; and
| | - Yangfeng Hou
- Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | | | - Bolun Li
- Department of Physiology and.,Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Xiaomin Song
- Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Weipeng Ge
- Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Baicun Li
- Department of Physiology and.,Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | | | | | - Dingyun Song
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Xinri Zhang
- Department of Pulmonary and Critical Care Medicine, The First Hospital of Shanxi Medical University, Taiyuan, China.,National Health Commission Key Laboratory of Pneumoconiosis, Taiyuan, China
| | - Junling Pang
- Department of Physiology and.,Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Tiantian Zhang
- Department of Physiology and.,Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | | | | | - Jing Wang
- Department of Pulmonary and Critical Care Medicine, The First Hospital of Shanxi Medical University, Taiyuan, China.,Department of Pathophysiology, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Chen Wang
- Department of Pulmonary and Critical Care Medicine, The First Hospital of Shanxi Medical University, Taiyuan, China.,Department of Physiology and.,National Health Commission Key Laboratory of Pneumoconiosis, Taiyuan, China.,Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China
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8
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Kumar K, Moon BH, Datta K, Fornace AJ, Suman S. Simulated galactic cosmic radiation (GCR)-induced expression of Spp1 coincide with mammary ductal cell proliferation and preneoplastic changes in Apc Min/+ mouse. Life Sci Space Res (Amst) 2023; 36:116-122. [PMID: 36682820 DOI: 10.1016/j.lssr.2022.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 08/18/2022] [Accepted: 09/16/2022] [Indexed: 06/17/2023]
Abstract
Female astronauts inevitably exposed to galactic cosmic radiation (GCR) are considered at a greater risk for mammary cancer development. The purpose of this study is to assess the status of mammary cancer-associated preneoplasia markers after GCR and γ-ray irradiation using a mouse model of human mammary cancer. Female ApcMin/+ mice were irradiated to 50 cGy of either γ-ray (137Cs) or full-spectrum simulated galactic cosmic radiation (GCR) (33-beam), and at 110 - 120 days post-irradiation mice were euthanized, and normal-appearing mammary tissues were analyzed for histological and molecular markers of preneoplasia. Whole-mount staining, hematoxylin and eosin-based histological assessment, and Cyclin D1 immunohistochemistry (IHC) were performed to analyze ductal outgrowth and cell proliferation. Additionally, mRNA expression of known mammary preneoplasia markers (Muc1, Exo1, Foxm1, Depdc1a, Nusap1, Spp1, and Rrm2) was analyzed using qPCR, and their respective protein expression was validated using immunohistochemistry. A significant increase in ductal outgrowth and cell proliferation in mammary tissues of GCR-irradiated mice was noted which indicates a higher risk of mammary cancer, relative to γ-rays. Increased mRNA and protein expression of Spp1 was observed in the GCR group, relative to γ-rays. This study demonstrates the plausibility of Spp1 as a preneoplasia marker in the early detection of mammary cancer after space radiation exposure.
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Affiliation(s)
- Kamendra Kumar
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, United States of America
| | - Bo-Hyun Moon
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, United States of America
| | - Kamal Datta
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, United States of America
| | - Albert J Fornace
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, United States of America; Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC 20057, United States of America
| | - Shubhankar Suman
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, United States of America.
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9
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Bai Q, Wang X, Yan H, Wen L, Zhou Z, Ye Y, Jing Y, Niu Y, Wang L, Zhang Z, Su J, Chang T, Dou G, Wang Y, Sun J. Microglia-Derived Spp1 Promotes Pathological Retinal Neovascularization via Activating Endothelial Kit/Akt/mTOR Signaling. J Pers Med 2023; 13:jpm13010146. [PMID: 36675807 PMCID: PMC9866717 DOI: 10.3390/jpm13010146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/31/2022] [Accepted: 01/03/2023] [Indexed: 01/14/2023] Open
Abstract
Pathological retinal neovascularization (RNV) is the main character of ischemic ocular diseases, which causes severe visual impairments. Though retinal microglia are well acknowledged to play important roles in both physiological and pathological angiogenesis, the molecular mechanisms by which microglia communicates with endothelial cells (EC) remain unknown. In this study, using single-cell RNA sequencing, we revealed that the pro-inflammatory secreted protein Spp1 was the most upregulated gene in microglia in the mouse model of oxygen-induced retinopathy (OIR). Bioinformatic analysis showed that the expression of Spp1 in microglia was respectively regulated via nuclear factor-kappa B (NF-κB) and hypoxia-inducible factor 1α (HIF-1α) pathways, which was further confirmed through in vitro assays using BV2 microglia cell line. To mimic microglia-EC communication, the bEnd.3 endothelial cell line was cultured with conditional medium (CM) from BV2. We found that adding recombinant Spp1 to bEnd.3 as well as treating with hypoxic BV2 CM significantly enhanced EC proliferation and migration, while Spp1 neutralizing blocked those CM-induced effects. Moreover, RNA sequencing of BV2 CM-treated bEnd.3 revealed a significant downregulation of Kit, one of the type III tyrosine kinase receptors that plays a critical role in cell growth and activation. We further revealed that Spp1 increased phosphorylation and expression level of Akt/mTOR signaling cascade, which might account for its pro-angiogenic effects. Finally, we showed that intravitreal injection of Spp1 neutralizing antibody attenuated pathological RNV and improved visual function. Taken together, our work suggests that Spp1 mediates microglia-EC communication in RNV via activating endothelial Kit/Akt/mTOR signaling and is a potential target to treat ischemic ocular diseases.
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Affiliation(s)
- Qian Bai
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
- 63750 Army Hospital of Chinese PLA, Xi’an 710043, China
| | - Xin Wang
- Lintong Rehabilitation Center of PLA Joint Logistics Support Force, Xi’an 710600, China
| | - Hongxiang Yan
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Lishi Wen
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Ziyi Zhou
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Yating Ye
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
- College of Life Science, Northwestern University, Xi’an 710069, China
| | - Yutong Jing
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Yali Niu
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Liang Wang
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
- Department of Ophthalmology, The Northern Theater Air Force Hospital, Shenyang 110041, China
| | - Zifeng Zhang
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Jingbo Su
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Tianfang Chang
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Guorui Dou
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
| | - Yusheng Wang
- Eye Institute of Chinese PLA, Fourth Military Medical University, Xi’an 710032, China
- Correspondence: (Y.W.); (J.S.); Tel.: +029-84775371 (Y.W.); +029-84771273 (J.S.)
| | - Jiaxing Sun
- Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an 710032, China
- Correspondence: (Y.W.); (J.S.); Tel.: +029-84775371 (Y.W.); +029-84771273 (J.S.)
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10
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Messex JK, Byrd CJ, Thomas MU, Liou GY. Macrophages Cytokine Spp1 Increases Growth of Prostate Intraepithelial Neoplasia to Promote Prostate Tumor Progression. Int J Mol Sci 2022; 23:4247. [PMID: 35457063 DOI: 10.3390/ijms23084247] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/07/2022] [Accepted: 04/08/2022] [Indexed: 11/27/2022] Open
Abstract
Prostate cancer development and progression are associated with increased infiltrating macrophages. Prostate cancer is derived from prostatic intraepithelial neoplasia (PIN) lesions. However, the effects macrophages have on PIN progression remain unclear. Here, we showed that the recruited macrophages adjacent to PIN expressed M2 macrophage markers. In addition, high levels of Spp1 transcripts, also known as osteopontin, were identified in these macrophages. Extraneously added Spp1 accelerated PIN cell proliferation through activation of Akt and JNK in a 3D culture setting. We also showed that PIN cells expressed CD44, integrin αv, integrin β1, and integrin β3, all of which have been previously reported as receptors for Spp1. Finally, blockade of Akt and JNK activation through their specific inhibitor completely abolished macrophage Spp1-induced cell proliferation of PIN. Hence, our data revealed Spp1 as another macrophage cytokine/growth factor and its mediated mechanism to upregulate PIN cell growth, thus promoting prostate cancer development.
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11
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Briones-Orta MA, Delgado-Coello B, Gutiérrez-Vidal R, Sosa-Garrocho M, Macías-Silva M, Mas-Oliva J. Quantitative Expression of Key Cancer Markers in the AS-30D Hepatocarcinoma Model. Front Oncol 2021; 11:670292. [PMID: 34737944 PMCID: PMC8561839 DOI: 10.3389/fonc.2021.670292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 09/14/2021] [Indexed: 11/13/2022] Open
Abstract
Hepatocellular carcinoma is one of the cancers with the highest mortality rate worldwide. HCC is often diagnosed when the disease is already in an advanced stage, making the discovery and implementation of biomarkers for the disease a critical aim in cancer research. In this study, we aim to quantify the transcript levels of key signaling molecules relevant to different pathways known to participate in tumorigenesis, with special emphasis on those related to cancer hallmarks and epithelial-mesenchymal transition, using as a model the murine transplantable hepatocarcinoma AS-30D. Using qPCR to quantify the mRNA levels of genes involved in tumorigenesis, we found elevated levels for Tgfb1 and Spp1, two master regulators of EMT. A mesenchymal signature profile for AS-30D cells is also supported by the overexpression of genes encoding for molecules known to be associated to aggressiveness and metastatic phenotypes such as Foxm1, C-met, and Inppl1. This study supports the use of the AS-30D cells as an efficient and cost-effective model to study gene expression changes in HCC, especially those associated with the EMT process.
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Affiliation(s)
- Marco A Briones-Orta
- Department of Infectious Disease, Imperial College London, London, United Kingdom
| | - Blanca Delgado-Coello
- Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Roxana Gutiérrez-Vidal
- Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Marcela Sosa-Garrocho
- Departamento de Biología Celular y Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Marina Macías-Silva
- Departamento de Biología Celular y Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Jaime Mas-Oliva
- Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
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12
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Watson KL, Yi R, Moorehead RA. Transgenic overexpression of the miR-200b/200a/429 cluster inhibits mammary tumor initiation. Transl Oncol 2021; 14:101228. [PMID: 34562686 PMCID: PMC8473771 DOI: 10.1016/j.tranon.2021.101228] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 09/15/2021] [Indexed: 12/24/2022] Open
Abstract
Overexpression of the miR-200b/200a/429 cluster prevents mammary tumor initiation. miR-200s may prevent mammary tumor initiation by suppressing Spp1, Saa1 and Saa2. Overexpression of miR-200s does not impair normal mammary ductal development.
The miR-200 family consists of five members expressed as two clusters: miR-200c/141 cluster and miR-200b/200a/429 cluster. In the mammary gland, miR-200s maintain epithelial identity by decreasing the expression of mesenchymal markers leading to high expression of epithelial markers. While the loss of miR-200s is associated with breast cancer growth and metastasis the impact of miR-200 expression on mammary tumor initiation has not been investigated. Using mammary specific expression of the miR-200b/200a/429 cluster in transgenic mice, we found that elevated expression miR-200s could almost completely prevent mammary tumor development. Only 1 of 16 MTB-IGFIRba429 transgenic mice (expressing both the IGF-IR and miR-200b/200a/429 transgenes) developed a mammary tumor while 100% of MTB-IGFIR transgenic mice (expressing only the IGF-IR transgene) developed mammary tumors. RNA sequencing, qRT-PCR, and immunohistochemistry of mammary tissue from 55-day old mice found Spp1, Saa1, and Saa2 to be elevated in mammary tumors and inhibited by miR-200b/200a/429 overexpression. This study suggests that miR-200s could be used as a preventative strategy to protect women from developing breast cancer. One concern with this approach is the potential negative impact miR-200 overexpression may have on mammary function. However, transgenic overexpression of miR-200s, on their own, did not significantly impact mammary ductal development indicating the miR-200 overexpression should not significantly impact mammary function. Thus, this study provides the initial foundation for using miR-200s for breast cancer prevention and additional studies should be performed to identify strategies for increasing mammary miR-200 expression and determine whether miR-200s can prevent mammary tumor initiation by other genetic alterations.
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Affiliation(s)
- Katrina L Watson
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Rui Yi
- Department of Pathology, Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Roger A Moorehead
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada.
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13
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Cappellano G, Vecchio D, Magistrelli L, Clemente N, Raineri D, Barbero Mazzucca C, Virgilio E, Dianzani U, Chiocchetti A, Comi C. The Yin-Yang of osteopontin in nervous system diseases: damage versus repair. Neural Regen Res 2021; 16:1131-1137. [PMID: 33269761 PMCID: PMC8224140 DOI: 10.4103/1673-5374.300328] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Osteopontin is a broadly expressed pleiotropic protein, and is attracting increased attention because of its role in the pathophysiology of several inflammatory, degenerative, autoimmune, and oncologic diseases. In fact, in the last decade, several studies have shown that osteopontin contributes to tissue damage not only by recruiting harmful inflammatory cells to the site of lesion, but also increasing their survival. The detrimental role of osteopontin has been indeed well documented in the context of different neurological conditions (i.e., multiple sclerosis, Parkinson's, and Alzheimer's diseases). Intriguingly, recent findings show that osteopontin is involved not only in promoting tissue damage (the Yin), but also in repair/regenerative mechanisms (the Yang), mostly triggered by the inflammatory response. These two apparently discordant roles are partly related to the presence of different functional domains in the osteopontin molecule, which are exposed after thrombin or metalloproteases cleavages. Such functional domains may in turn activate intracellular signaling pathways and mediate cell-cell and cell-matrix interactions. This review describes the current knowledge on the Yin and Yang features of osteopontin in nervous system diseases. Understanding the mechanisms behind the Yin/Yang would be relevant to develop highly specific tools targeting this multifunctional protein.
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Affiliation(s)
- Giuseppe Cappellano
- Department of Health Sciences, Interdisciplinary Research Center of Autoimmune Diseases (IRCAD); Center for Translational Research on Autoimmune and Allergic Disease-CAAD, University of Piemonte Orientale, Novara, Italy
| | - Domizia Vecchio
- Department of Translational Medicine, Neurology Unit, Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, Novara, Italy
| | - Luca Magistrelli
- Department of Translational Medicine, Neurology Unit, Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, Novara; PhD Program in Clinical and Experimental Medicine and Medical Humanities, University of Insubria, Varese, Italy
| | - Nausicaa Clemente
- Department of Health Sciences, Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, Novara, Italy
| | - Davide Raineri
- Department of Health Sciences, Interdisciplinary Research Center of Autoimmune Diseases (IRCAD); Center for Translational Research on Autoimmune and Allergic Disease-CAAD, University of Piemonte Orientale, Novara, Italy
| | - Camilla Barbero Mazzucca
- Department of Health Sciences, Interdisciplinary Research Center of Autoimmune Diseases (IRCAD); Center for Translational Research on Autoimmune and Allergic Disease-CAAD, University of Piemonte Orientale, Novara, Italy
| | - Eleonora Virgilio
- Department of Translational Medicine, Neurology Unit, Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, Novara, Italy
| | - Umberto Dianzani
- Department of Health Sciences, Interdisciplinary Research Center of Autoimmune Diseases (IRCAD); Center for Translational Research on Autoimmune and Allergic Disease-CAAD, University of Piemonte Orientale, Novara, Italy
| | - Annalisa Chiocchetti
- Department of Health Sciences, Interdisciplinary Research Center of Autoimmune Diseases (IRCAD); Center for Translational Research on Autoimmune and Allergic Disease-CAAD, University of Piemonte Orientale, Novara, Italy
| | - Cristoforo Comi
- Department of Translational Medicine, Neurology Unit, Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, Novara, Italy
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14
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Yang H, Graham LC, Reagan AM, Grabowska WA, Schott WH, Howell GR. Transcriptome profiling of brain myeloid cells revealed activation of Itgal, Trem1, and Spp1 in western diet-induced obesity. J Neuroinflammation 2019; 16:169. [PMID: 31426806 PMCID: PMC6700800 DOI: 10.1186/s12974-019-1527-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 06/20/2019] [Indexed: 12/18/2022] Open
Abstract
Background Environmental factors are critical in the development of age-related cognitive decline and dementia. A western diet (WD) can cause nutrient deficiency and inflammation that could impact cognition directly. It is increasingly recognized that innate immune responses by brain myeloid cells, such as resident microglia, and infiltrating peripheral monocytes/macrophages may represent an essential link between a WD, cognitive decline, and dementia. Our previous data demonstrated that chronic consumption of a WD induced inflammation through brain myeloid cells in aging mice and a mouse model of Alzheimer’s disease (AD). However, the subtypes of myeloid cells that contribute to the WD-induced inflammation remain unclear. Methods C57BL/6J (B6), myeloid cell reporter mice (B6.Ccr2RFP/+Cx3cr1GFP/+), and Ccr2-deficient mice (B6.Ccr2RFP/RFP) were fed a WD or a control chow diet (CD) from 2 to 6 or 12 months of age. CD11b+CD45lo and CD11b+CD45hi cells from WD- and CD-fed B6 or Ccr2-deficient mice were characterized using flow cytometry, RNA-sequencing, and immunofluorescence. Results Ccr2::RFP expressing myeloid cells were significantly increased in brains of WD- compared to CD-fed mice, but were not elevated in Ccr2-deficient WD-fed mice. The percent of CD11b+CD45hi cells was significantly increased in WD- compared to CD-fed mice. Comparison of RNA-sequencing data with immune cell data in ImmGen supports that CD11b+CD45hi cells from WD-fed mice are enriched for peripheral monocytes and neutrophils. Ingenuity pathway analysis predicted these cells elicit proinflammatory responses that may be damaging to the brain. Using stringent criteria for gene expression levels between CD11b+CD45hi and CD11b+CD45lo cells, we identified approximately 70 genes that we predict are uniquely expressed in infiltrating cells, including Itgal, Trem1, and Spp1 (osteopontin, OPN). Finally, we show a significantly greater number of OPN+IBA1– cells in WD- compared to CD-fed mice that we propose are activated neutrophils based on ImmGen data. OPN+IBA1– cells are not significantly increased in Ccr2-deficient WD-fed mice. Conclusions These data further support the model that peripheral myeloid cells enter the brain in response to diet-induced obesity. Elucidating their contribution to age-related cognitive decline and age-related neurodegenerative diseases should offer new avenues for therapeutic intervention in Alzheimer’s disease and related dementias, where diet/obesity are major risk factors. Electronic supplementary material The online version of this article (10.1186/s12974-019-1527-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | - Leah C Graham
- The Jackson Laboratory, Bar Harbor, ME, USA.,Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, MA, USA
| | | | | | | | - Gareth R Howell
- The Jackson Laboratory, Bar Harbor, ME, USA.,Sackler School of Graduate Biomedical Sciences, Tufts University School of Medicine, Boston, MA, USA.,Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, ME, USA
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15
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Potikha T, Pappo O, Mizrahi L, Olam D, Maller SM, Rabinovich GA, Galun E, Goldenberg DS. Lack of galectin-1 exacerbates chronic hepatitis, liver fibrosis, and carcinogenesis in murine hepatocellular carcinoma model. FASEB J 2019; 33:7995-8007. [PMID: 30897344 PMCID: PMC9292271 DOI: 10.1096/fj.201900017r] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 03/18/2019] [Indexed: 04/16/2024]
Abstract
Chronic liver inflammation (CLI) is a risk factor for development of hepatocellular carcinoma (HCC). Galectin-1 (Gal1) is involved in the regulation of inflammation, angiogenesis, and tumorigenesis, exhibiting multiple anti-inflammatory and protumorigenic activities. We aimed to explore its regulatory role in CLI and HCC progression using an established model of CLI-mediated HCC development, Abcb4 [multidrug-resistance 2 (Mdr2)]-knockout (KO) mice, which express high levels of Gal1 in the liver. We generated double-KO (dKO) Gal1-KO/Mdr2-KO mice on C57BL/6 and FVB/N genetic backgrounds and compared HCC development in the generated strains with their parental Mdr2-KO strains. Loss of Gal1 increased liver injury, inflammation, fibrosis, and ductular reaction in dKO mice of both strains starting from an early age. Aged dKO mutants displayed earlier hepatocarcinogenesis and increased tumor size compared with control Mdr2-KO mice. We found that osteopontin, a well-known modulator of HCC development, and oncogenic proteins Ntrk2 (TrkB) and S100A4 were overexpressed in dKO compared with Mdr2-KO livers. Our results demonstrate that in Mdr2-KO mice, a model of CLI-mediated HCC, Gal1-mediated protection from hepatitis, liver fibrosis, and HCC initiation dominates over its known procarcinogenic activities at later stages of HCC development. These findings suggest that anti-Gal1 treatments may not be applicable at all stages of CLI-mediated HCC.-Potikha, T., Pappo, O., Mizrahi, L., Olam, D., Maller, S. M., Rabinovich, G. A., Galun, E., Goldenberg, D. S. Lack of galectin-1 exacerbates chronic hepatitis, liver fibrosis, and carcinogenesis in murine hepatocellular carcinoma model.
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Affiliation(s)
- Tamara Potikha
- The Goldyne Savad Institute of Gene TherapyHadassah-Hebrew University Medical CenterJerusalemIsrael
| | - Orit Pappo
- Department of PathologyHadassah-Hebrew University Medical CenterJerusalemIsrael
| | - Lina Mizrahi
- The Goldyne Savad Institute of Gene TherapyHadassah-Hebrew University Medical CenterJerusalemIsrael
| | - Devorah Olam
- The Goldyne Savad Institute of Gene TherapyHadassah-Hebrew University Medical CenterJerusalemIsrael
| | - Sebastián M. Maller
- Laboratory of ImmunopathologyInstitute of Biology and Experimental Medicine (IBYME)Argentinean National Research Council (CONICET)Buenos AiresArgentina
| | - Gabriel A. Rabinovich
- Laboratory of ImmunopathologyInstitute of Biology and Experimental Medicine (IBYME)Argentinean National Research Council (CONICET)Buenos AiresArgentina
- Faculty of Exact and Natural SciencesUniversity of Buenos AiresBuenos AiresArgentina
| | - Eithan Galun
- The Goldyne Savad Institute of Gene TherapyHadassah-Hebrew University Medical CenterJerusalemIsrael
| | - Daniel S. Goldenberg
- The Goldyne Savad Institute of Gene TherapyHadassah-Hebrew University Medical CenterJerusalemIsrael
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16
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Bhushan R, Altinbas L, Jäger M, Zaradzki M, Lehmann D, Timmermann B, Clayton NP, Zhu Y, Kallenbach K, Kararigas G, Robinson PN. An integrative systems approach identifies novel candidates in Marfan syndrome-related pathophysiology. J Cell Mol Med 2019; 23:2526-2535. [PMID: 30677223 PMCID: PMC6433740 DOI: 10.1111/jcmm.14137] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 12/11/2018] [Accepted: 12/13/2018] [Indexed: 12/30/2022] Open
Abstract
Marfan syndrome (MFS) is an autosomal dominant genetic disorder caused by mutations in the FBN1 gene. Although many peripheral tissues are affected, aortic complications, such as dilation, dissection and rupture, are the leading causes of MFS‐related mortality. Aberrant TGF‐beta signalling plays a major role in the pathophysiology of MFS. However, the contributing mechanisms are still poorly understood. Here, we aimed at identifying novel aorta‐specific pathways involved in the pathophysiology of MFS. For this purpose, we employed the Fbn1 under‐expressing mgR/mgR mouse model of MFS. We performed RNA‐sequencing of aortic tissues of 9‐week‐old mgR/mgR mice compared with wild‐type (WT) mice. With a false discovery rate <5%, our analysis revealed 248 genes to be differentially regulated including 20 genes previously unrelated with MFS‐related pathology. Among these, we identified Igfbp2, Ccl8, Spp1, Mylk2, Mfap4, Dsp and H19. We confirmed the expression of regulated genes by quantitative real‐time PCR. Pathway classification revealed transcript signatures involved in chemokine signalling, cardiac muscle contraction, dilated and hypertrophic cardiomyopathy. Furthermore, our immunoblot analysis of aortic tissues revealed altered regulation of pSmad2 signalling, Perk1/2, Igfbp2, Mfap4, Ccl8 and Mylk2 protein levels in mgR/mgR vs WT mice. Together, our integrative systems approach identified several novel factors associated with MFS‐aortic‐specific pathophysiology that might offer potential novel therapeutic targets for MFS.
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Affiliation(s)
- Raghu Bhushan
- Charité University Hospital, Berlin, Germany.,Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore, India
| | | | - Marten Jäger
- Charité University Hospital, Berlin, Germany.,Berlin Institute of Health (BIH) Core Genomics Facility, Charité, University Medical Center, Berlin, Germany
| | - Marcin Zaradzki
- Department of Cardiac Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | | | | | | | | | - Klaus Kallenbach
- Department of Cardiac Surgery, University Hospital Heidelberg, Heidelberg, Germany.,Department of Cardiac Surgery, INCCI HaerzZenter, Luxembourg, Luxembourg
| | - Georgios Kararigas
- Charité University Hospital, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Berlin, Germany
| | - Peter N Robinson
- Charité University Hospital, Berlin, Germany.,Max Planck Institute for Molecular Genetics, Berlin, Germany.,The Jackson Laboratory for Genomic Medicine, Farmington, Connecticut
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17
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Bjelobaba I, Janjic MM, Prévide RM, Abebe D, Kucka M, Stojilkovic SS. Distinct Expression Patterns of Osteopontin and Dentin Matrix Protein 1 Genes in Pituitary Gonadotrophs. Front Endocrinol (Lausanne) 2019; 10:248. [PMID: 31057484 PMCID: PMC6478748 DOI: 10.3389/fendo.2019.00248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 03/29/2019] [Indexed: 01/06/2023] Open
Abstract
Cell-matrix interactions play important roles in pituitary development, physiology, and pathogenesis. In other tissues, a family of non-collagenous proteins, termed SIBLINGs, are known to contribute to cell-matrix interactions. Anterior pituitary gland expresses two SIBLING genes, Dmp1 (dentin matrix protein-1) and Spp1 (secreted phosphoprotein-1) encoding DMP1 and osteopontin proteins, respectively, but their expression pattern and roles in pituitary functions have not been clarified. Here we provide novel evidence supporting the conclusion that Spp1/osteopontin, like Dmp1/DMP1, are expressed in gonadotrophs in a sex- and age-specific manner. Other anterior pituitary cell types do not express these genes. In contrast to Dmp1, Spp1 expression is higher in males; in females, the expression reaches the peak during the diestrus phase of estrous cycle. In further contrast to Dmp1 and marker genes for gonadotrophs, the expression of Spp1 is not regulated by gonadotropin-releasing hormone in vivo and in vitro. However, Spp1 expression increases progressively after pituitary cell dispersion in both female and male cultures. We may speculate that gonadotrophs signal to other pituitary cell types about changes in the structure of pituitary cell-matrix network by osteopontin, a function consistent with the role of this secretory protein in postnatal tissue remodeling, extracellular matrix reorganization after injury, and tumorigenesis.
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Affiliation(s)
- Ivana Bjelobaba
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health (NIH), Bethesda, MD, United States
- Institute for Biological Research Sinisa Stankovic, University of Belgrade, Belgrade, Serbia
| | - Marija M. Janjic
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health (NIH), Bethesda, MD, United States
- Institute for Biological Research Sinisa Stankovic, University of Belgrade, Belgrade, Serbia
| | - Rafael Maso Prévide
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health (NIH), Bethesda, MD, United States
| | - Daniel Abebe
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health (NIH), Bethesda, MD, United States
| | - Marek Kucka
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health (NIH), Bethesda, MD, United States
| | - Stanko S. Stojilkovic
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health (NIH), Bethesda, MD, United States
- *Correspondence: Stanko S. Stojilkovic
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18
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Fillér C, Hornyák L, Roszik J. Commentary: Nuclear dynamics of the Set1C subunit Spp1 prepares meiotic recombination sites for break formation. Front Genet 2018; 9:496. [PMID: 30405701 PMCID: PMC6206171 DOI: 10.3389/fgene.2018.00496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 10/04/2018] [Indexed: 11/20/2022] Open
Affiliation(s)
- Csaba Fillér
- MTA-DE Momentum Genome Architecture and Recombination Research Group, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Lilla Hornyák
- MTA-DE Momentum Genome Architecture and Recombination Research Group, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Jason Roszik
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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19
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Briones-Orta MA, Avendaño-Vázquez SE, Aparicio-Bautista DI, Coombes JD, Weber GF, Syn WK. Osteopontin splice variants and polymorphisms in cancer progression and prognosis. Biochim Biophys Acta Rev Cancer 2017; 1868:93-108.A. [PMID: 28254527 DOI: 10.1016/j.bbcan.2017.02.005] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 02/24/2017] [Accepted: 02/25/2017] [Indexed: 12/12/2022]
Abstract
Osteopontin (OPN) is an extracellular matrix protein that is overexpressed in various cancers and promotes oncogenic features including cell proliferation, survival, migration, and angiogenesis, among others. OPN can participate in the regulation of the tumor microenvironment, affecting both cancer and neighboring cells. Here, we review the roles of OPN splice variants (a, b, c) in cancer development, progression, and prognosis, and also discuss the identities of isoforms 4 and 5. We also discussed how single-nucleotide polymorphisms (SNPs) of the OPN gene are an additional factor influencing the level of OPN in individuals, modulating the risks of cancer development and outcome.
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Affiliation(s)
| | | | | | - Jason D Coombes
- Regeneration and Repair, Institute of Hepatology, Foundation for Liver Research, London, United Kingdom
| | - Georg F Weber
- James L. Winkle College of Pharmacy, University of Cincinnati Academic Health Center, Cincinnati, OH, United States
| | - Wing-Kin Syn
- Regeneration and Repair, Institute of Hepatology, Foundation for Liver Research, London, United Kingdom; Division of Gastroenterology and Hepatology, Department of Medicine, Medical University of South Carolina, Charleston, SC., United States; Section of Gastroenterology, Ralph H Johnson Veteran Affairs Medical Center, Charleston, SC, United States.
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20
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Frau M, Feo F, Pascale RM. Pleiotropic effects of methionine adenosyltransferases deregulation as determinants of liver cancer progression and prognosis. J Hepatol 2013; 59:830-41. [PMID: 23665184 DOI: 10.1016/j.jhep.2013.04.031] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 04/15/2013] [Accepted: 04/23/2013] [Indexed: 12/13/2022]
Abstract
Downregulation of liver-specific MAT1A gene, encoding S-adenosylmethionine (SAM) synthesizing isozymes MATI/III, and upregulation of widely expressed MAT2A, encoding MATII isozyme, known as MAT1A:MAT2A switch, occurs in hepatocellular carcinoma (HCC). Being inhibited by its reaction product, MATII isoform upregulation cannot compensate for MATI/III decrease. Therefore, MAT1A:MAT2A switch contributes to decrease in SAM level in rodent and human hepatocarcinogenesis. SAM administration to carcinogen-treated rats prevents hepatocarcinogenesis, whereas MAT1A-KO mice, characterized by chronic SAM deficiency, exhibit macrovesicular steatosis, mononuclear cell infiltration in periportal areas, and HCC development. This review focuses upon the pleiotropic changes, induced by MAT1A/MAT2A switch, associated with HCC development. Epigenetic control of MATs expression occurs at transcriptional and post-transcriptional levels. In HCC cells, MAT1A/MAT2A switch is associated with global DNA hypomethylation, decrease in DNA repair, genomic instability, and signaling deregulation including c-MYC overexpression, rise in polyamine synthesis, upregulation of RAS/ERK, IKK/NF-kB, PI3K/AKT, and LKB1/AMPK axis. Furthermore, decrease in MAT1A expression and SAM levels results in increased HCC cell proliferation, cell survival, and microvascularization. All of these changes are reversed by SAM treatment in vivo or forced MAT1A overexpression or MAT2A inhibition in cultured HCC cells. In human HCC, MAT1A:MAT2A and MATI/III:MATII ratios correlate negatively with cell proliferation and genomic instability, and positively with apoptosis and global DNA methylation. This suggests that SAM decrease and MATs deregulation represent potential therapeutic targets for HCC. Finally, MATI/III:MATII ratio strongly predicts patients' survival length suggesting that MAT1A:MAT2A expression ratio is a putative prognostic marker for human HCC.
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Affiliation(s)
- Maddalena Frau
- Department of Clinical and Experimental Medicine, Laboratory of Experimental Pathology and Oncology, University of Sassari, Sassari, Italy
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Abstract
In Saccharomyces cerevisiae, all H3K4 methylation is performed by a single Set1 Complex (Set1C) that is composed of the catalytic (Set1) and seven other subunits (Swd1, Swd2, Swd3, Bre2, Sdc1, Spp1 and Shg1). It has been known for quite some time that trimethylated H3K4 (H3K4me3) is enriched in the vicinity of meiotic double-strand breaks (DSBs), but the link between H3K4me3 and the meiotic nuclease Spo11 was uncovered only recently. The PHD-containing subunit Spp1, by interacting with H3K4me3 and Mer2, was shown to promote the recruitment of potential meiotic DSB sites to the chromosomal axis allowing their subsequent cleavage by Spo11. Therefore, Spp1 emerged as a key regulator of the H3K4 trimethylation catalyzed by Set1C and of the formation of meiotic DSBs. These findings illustrate the remarkable multifunctionality of Spp1, which not only regulates the catalytic activity of the enzyme (Set1), but also interacts with the deposited mark, and mediates its biological effect (meiotic DSB formation) independently of the complex. As it was previously described for Swd2, and now for Spp1, we anticipate that other Set1C subunits, in addition to regulating H3K4 methylation, may participate in diverse biological functions inside or outside of the complex.
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Affiliation(s)
- Laurent Acquaviva
- Marseille Cancer Research Center (CRCM);U1068 Inserm; UMR7258 CNRS; Aix-Marseille Univ; Institut Paoli-Calmettes; Marseille, France
| | - Julie Drogat
- Marseille Cancer Research Center (CRCM);U1068 Inserm; UMR7258 CNRS; Aix-Marseille Univ; Institut Paoli-Calmettes; Marseille, France
| | - Pierre-Marie Dehé
- Marseille Cancer Research Center (CRCM);U1068 Inserm; UMR7258 CNRS; Aix-Marseille Univ; Institut Paoli-Calmettes; Marseille, France
| | | | - Vincent Géli
- Marseille Cancer Research Center (CRCM);U1068 Inserm; UMR7258 CNRS; Aix-Marseille Univ; Institut Paoli-Calmettes; Marseille, France
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