1
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Pizzuto M, Hurtado-Navarro L, Molina-Lopez C, Soubhye J, Gelbcke M, Rodriguez-Lopez S, Ruysschaert JM, Schroder K, Pelegrin P. Ornithine lipid is a partial TLR4 agonist and NLRP3 activator. Cell Rep 2024; 43:114788. [PMID: 39340778 DOI: 10.1016/j.celrep.2024.114788] [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: 06/05/2024] [Revised: 08/13/2024] [Accepted: 09/06/2024] [Indexed: 09/30/2024] Open
Abstract
Gram-negative bacterial lipopolysaccharides (LPSs) trigger inflammatory reactions through Toll-like receptor 4 (TLR4) and prime myeloid cells for inflammasome activation. In phosphate-limited environments, bacteria reduce LPS and other phospholipid production and synthesize phosphorus-free alternatives such as amino-acid-containing lipids like the ornithine lipid (OL). This adaptive strategy conserves phosphate for other essential cellular processes and enhances bacterial survival in host environments. While OL is implicated in bacterial pathogenicity, the mechanism is unclear. Using primary murine macrophages and human mononuclear cells, we elucidate that OL activates TLR4 and induces potassium efflux-dependent nucleotide-binding domain and leucine-rich repeat-containing pyrin protein 3 (NLRP3) activation. OL upregulates the expression of NLRP3 and pro-interleukin (IL)-1β and induces cytokine secretion in primed and unprimed cells. By contrast, in the presence of LPS, OL functions as a partial TLR4 antagonist and reduces LPS-induced cytokine secretion. We thus suggest that in phosphate-depleted environments, OL replaces LPS bacterial immunogenicity, while constitutively present OL may allow bacteria to escape immune surveillance.
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Affiliation(s)
- Malvina Pizzuto
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), 30120 Murcia, Spain; Structure and Function of Biological Membranes Laboratory, Université Libre de Bruxelles, 1050 Brussels, Belgium; Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4067, Australia.
| | - Laura Hurtado-Navarro
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), 30120 Murcia, Spain
| | - Cristina Molina-Lopez
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), 30120 Murcia, Spain
| | - Jalal Soubhye
- Department of Pharmacognosy, Bioanalysis and Drug Discovery, Faculty of Pharmacy, Université Libre De Bruxelles, 1050 Brussels, Belgium
| | - Michel Gelbcke
- Department of Pharmacognosy, Bioanalysis and Drug Discovery, Faculty of Pharmacy, Université Libre De Bruxelles, 1050 Brussels, Belgium
| | - Silvia Rodriguez-Lopez
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), 30120 Murcia, Spain
| | - Jean-Marie Ruysschaert
- Structure and Function of Biological Membranes Laboratory, Université Libre de Bruxelles, 1050 Brussels, Belgium
| | - Kate Schroder
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4067, Australia
| | - Pablo Pelegrin
- Molecular Inflammation Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), 30120 Murcia, Spain; Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, 30120 Murcia, Spain
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2
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Simmonds E, Leonenko G, Yaman U, Bellou E, Myers A, Morgan K, Brookes K, Hardy J, Salih D, Escott-Price V. Chromosome X-wide association study in case control studies of pathologically confirmed Alzheimer's disease in a European population. Transl Psychiatry 2024; 14:358. [PMID: 39231932 PMCID: PMC11375158 DOI: 10.1038/s41398-024-03058-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 08/20/2024] [Accepted: 08/22/2024] [Indexed: 09/06/2024] Open
Abstract
Although there are several genome-wide association studies available which highlight genetic variants associated with Alzheimer's disease (AD), often the X chromosome is excluded from the analysis. We conducted an X-chromosome-wide association study (XWAS) in three independent studies with a pathologically confirmed phenotype (total 1970 cases and 1113 controls). The XWAS was performed in males and females separately, and these results were then meta-analysed. Four suggestively associated genes were identified which may be of potential interest for further study in AD, these are DDX53 (rs12006935, OR = 0.52, p = 6.9e-05), IL1RAPL1 (rs6628450, OR = 0.36, p = 4.2e-05; rs137983810, OR = 0.52, p = 0.0003), TBX22 (rs5913102, OR = 0.74, p = 0.0003) and SH3BGRL (rs186553004, OR = 0.35, p = 0.0005; rs113157993, OR = 0.52, p = 0.0003), which replicate across at least two studies. The SNP rs5913102 in TBX22 achieves chromosome-wide significance in meta-analysed data. DDX53 shows highest expression in astrocytes, IL1RAPL1 is most highly expressed in oligodendrocytes and neurons and SH3BGRL is most highly expressed in microglia. We have also identified SNPs in the NXF5 gene at chromosome-wide significance in females (rs5944989, OR = 0.62, p = 1.1e-05) but not in males (p = 0.83). The discovery of relevant AD associated genes on the X chromosome may identify AD risk differences and similarities based on sex and lead to the development of sex-stratified therapeutics.
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Affiliation(s)
- Emily Simmonds
- Dementia Research Institute, Cardiff University, Cardiff, UK
| | - Ganna Leonenko
- Dementia Research Institute, Cardiff University, Cardiff, UK
| | - Umran Yaman
- Institute of Neurology, University College London, London, UK
| | - Eftychia Bellou
- Dementia Research Institute, Cardiff University, Cardiff, UK
| | - Amanda Myers
- Department of Cell Biology, University of Miami, Miller School of Medicine, Miami, FL, USA
| | | | - Keeley Brookes
- Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - John Hardy
- Institute of Neurology, University College London, London, UK
| | - Dervis Salih
- Institute of Neurology, University College London, London, UK
| | - Valentina Escott-Price
- Dementia Research Institute, Cardiff University, Cardiff, UK.
- Division of Psychological Medicine and Clinical Neurosciences, School of Medicine, Cardiff University, Cardiff, UK.
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3
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Man SM, Kanneganti TD. Innate immune sensing of cell death in disease and therapeutics. Nat Cell Biol 2024; 26:1420-1433. [PMID: 39223376 DOI: 10.1038/s41556-024-01491-y] [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: 01/22/2024] [Accepted: 07/22/2024] [Indexed: 09/04/2024]
Abstract
Innate immunity, cell death and inflammation underpin many aspects of health and disease. Upon sensing pathogens, pathogen-associated molecular patterns or damage-associated molecular patterns, the innate immune system activates lytic, inflammatory cell death, such as pyroptosis and PANoptosis. These genetically defined, regulated cell death pathways not only contribute to the host defence against infectious disease, but also promote pathological manifestations leading to cancer and inflammatory diseases. Our understanding of the underlying mechanisms has grown rapidly in recent years. However, how dying cells, cell corpses and their liberated cytokines, chemokines and inflammatory signalling molecules are further sensed by innate immune cells, and their contribution to further amplify inflammation, trigger antigen presentation and activate adaptive immunity, is less clear. Here, we discuss how pattern-recognition and PANoptosome sensors in innate immune cells recognize and respond to cell-death signatures. We also highlight molecular targets of the innate immune response for potential therapeutic development.
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Affiliation(s)
- Si Ming Man
- Division of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory, Australia.
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4
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Singh RB, Cho W, Liu C, Naderi A, Surico PL, Kahale F, Dohlman TH, Chauhan SK, Dana R. Immunopathological mechanisms and clinical manifestations of ocular graft-versus-host disease following hematopoietic stem cell transplantation. Bone Marrow Transplant 2024; 59:1049-1056. [PMID: 38822141 DOI: 10.1038/s41409-024-02321-3] [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: 03/30/2024] [Revised: 05/21/2024] [Accepted: 05/23/2024] [Indexed: 06/02/2024]
Abstract
Graft-versus-host disease is among the most common clinical complications following allogeneic hematopoietic stem cell transplantation. It causes inflammation-mediated destruction and dysfunction of various organ systems including ocular tissues in 60-90% of the patients and is termed ocular GVHD (oGVHD). In oGVHD, donor-derived T-cells recognize host antigens as foreign, resulting in immune dysregulation, inflammation and fibrosis of lacrimal glands, meibomian glands, cornea, and conjunctiva. The clinical presentation in oGVHD patients range from mild dry eye symptoms to catastrophic inflammation mediated pathological changes which can cause corneal perforation and blindness. In this review article, we provide detailed insights into the impact of mucosal barrier disruption, the afferent and efferent phases of immunological response involving activation of antigen presenting cells and T cells, respectively. We evaluate the evidence outlining the effector phase of the disease leading to cellular destruction and eventually fibrosis in patients with oGVHD. Finally, we discuss the well-established criteria for the diagnosis of oGVHD.
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Affiliation(s)
- Rohan Bir Singh
- Laboratory of Ocular Immunology, Transplantation and Regeneration, Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Wonkyung Cho
- Laboratory of Ocular Immunology, Transplantation and Regeneration, Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Catherine Liu
- Laboratory of Ocular Immunology, Transplantation and Regeneration, Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Amirreza Naderi
- Laboratory of Ocular Immunology, Transplantation and Regeneration, Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Pier Luigi Surico
- Laboratory of Ocular Immunology, Transplantation and Regeneration, Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Francesca Kahale
- Laboratory of Ocular Immunology, Transplantation and Regeneration, Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Thomas H Dohlman
- Laboratory of Ocular Immunology, Transplantation and Regeneration, Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Sunil K Chauhan
- Laboratory of Ocular Immunology, Transplantation and Regeneration, Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Reza Dana
- Laboratory of Ocular Immunology, Transplantation and Regeneration, Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA.
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5
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Sierra-Marquez J, Schaller L, Sassenbach L, Ramírez-Fernández A, Alt P, Rissiek B, Zimmer B, Schredelseker J, Hector J, Stähler T, Koch-Nolte F, Staab-Weijnitz CA, Dietrich A, Kopp R, Nicke A. Different localization of P2X4 and P2X7 receptors in native mouse lung - lack of evidence for a direct P2X4-P2X7 receptor interaction. Front Immunol 2024; 15:1425938. [PMID: 38953020 PMCID: PMC11215518 DOI: 10.3389/fimmu.2024.1425938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 05/28/2024] [Indexed: 07/03/2024] Open
Abstract
Introduction P2X receptors are a family of homo- and heterotrimeric cation channels gated by extracellular ATP. The P2X4 and P2X7 subunits show overlapping expression patterns and have been involved in similar physiological processes, such as pain and inflammation as well as various immune cell functions. While formation of P2X2/P2X3 heterotrimers produces a distinct pharmacological phenotype and has been well established, functional identification of a P2X4/P2X7 heteromer has been difficult and evidence for and against a physical association has been found. Most of this evidence stems, however, from in vitro model systems. Methods Here, we used a P2X7-EGFP BAC transgenic mouse model as well as P2X4 and P2X7 knock-out mice to re-investigate a P2X4-P2X7 interaction in mouse lung by biochemical and immunohistochemical experiments as well as quantitative expression analysis. Results No detectable amounts of P2X4 could be co-purified from mouse lung via P2X7-EGFP. In agreement with these findings, immuno-histochemical analysis using a P2X7-specific nanobody revealed only limited overlap in the cellular and subcellular localizations of P2X4 and P2X7 in both the native lung tissue and primary cells. Comparison of P2X4 and P2X7 transcript and protein levels in the respective gene-deficient and wild type mice showed no mutual interrelation between their expression levels in whole lungs. However, a significantly reduced P2rx7 expression was found in alveolar macrophages of P2rx4 -/- mice. Discussion In summary, our detailed analysis of the cellular and subcellular P2X4 and P2X7 localization and expression does not support a physiologically relevant direct association of P2X4 and P2X7 subunits or receptors in vivo.
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Affiliation(s)
- Juan Sierra-Marquez
- Walther Straub Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), Faculty of Medicine, LMU Munich, Munich, Germany
| | - Lena Schaller
- Walther Straub Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), Faculty of Medicine, LMU Munich, Munich, Germany
| | - Lukas Sassenbach
- Walther Straub Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), Faculty of Medicine, LMU Munich, Munich, Germany
| | - Antonio Ramírez-Fernández
- Walther Straub Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), Faculty of Medicine, LMU Munich, Munich, Germany
| | - Philipp Alt
- Walther Straub Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), Faculty of Medicine, LMU Munich, Munich, Germany
| | - Björn Rissiek
- Department of Neurology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Béla Zimmer
- Walther Straub Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), Faculty of Medicine, LMU Munich, Munich, Germany
| | - Johann Schredelseker
- Walther Straub Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), Faculty of Medicine, LMU Munich, Munich, Germany
- Deutsches Zentrum für Herz-Kreislauf-Forschung, Partner Site Munich Heart Alliance, Munich, Germany
| | - Julia Hector
- Walther Straub Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), Faculty of Medicine, LMU Munich, Munich, Germany
| | - Tobias Stähler
- Institute of Immunology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Friedrich Koch-Nolte
- Institute of Immunology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Claudia A. Staab-Weijnitz
- Institute of Lung Health and Immunity (LHI), Helmholtz Munich, Comprehensive Pneumology Center (CPC-M), Member of the German Center for Lung Research (DZL), Germany
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Alexander Dietrich
- Walther Straub Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), Faculty of Medicine, LMU Munich, Munich, Germany
| | - Robin Kopp
- Walther Straub Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), Faculty of Medicine, LMU Munich, Munich, Germany
| | - Annette Nicke
- Walther Straub Institute of Pharmacology and Toxicology, Member of the German Center for Lung Research (DZL), Faculty of Medicine, LMU Munich, Munich, Germany
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6
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Ma M, Jiang W, Zhou R. DAMPs and DAMP-sensing receptors in inflammation and diseases. Immunity 2024; 57:752-771. [PMID: 38599169 DOI: 10.1016/j.immuni.2024.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/17/2024] [Accepted: 03/01/2024] [Indexed: 04/12/2024]
Abstract
Damage-associated molecular patterns (DAMPs) are endogenous danger molecules produced in cellular damage or stress, and they can activate the innate immune system. DAMPs contain multiple types of molecules, including nucleic acids, proteins, ions, glycans, and metabolites. Although these endogenous molecules do not trigger immune response under steady-state condition, they may undergo changes in distribution, physical or chemical property, or concentration upon cellular damage or stress, and then they become DAMPs that can be sensed by innate immune receptors to induce inflammatory response. Thus, DAMPs play an important role in inflammation and inflammatory diseases. In this review, we summarize the conversion of homeostatic molecules into DAMPs; the diverse nature and classification, cellular origin, and sensing of DAMPs; and their role in inflammation and related diseases. Furthermore, we discuss the clinical strategies to treat DAMP-associated diseases via targeting DAMP-sensing receptors.
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Affiliation(s)
- Ming Ma
- Key Laboratory of Immune Response and Immunotherapy, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, Anhui, China
| | - Wei Jiang
- Key Laboratory of Immune Response and Immunotherapy, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, Anhui, China
| | - Rongbin Zhou
- Key Laboratory of Immune Response and Immunotherapy, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, Anhui, China; Department of Geriatrics, Gerontology Institute of Anhui Province, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China.
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7
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Fan Z, Wang K, Zhao X, Sun X. P2X7 receptor: A receptor closely linked with sepsis-associated encephalopathy. Open Life Sci 2024; 19:20220775. [PMID: 38585633 PMCID: PMC10998679 DOI: 10.1515/biol-2022-0775] [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: 07/14/2023] [Revised: 09/15/2023] [Accepted: 10/27/2023] [Indexed: 04/09/2024] Open
Abstract
Sepsis is defined as a dysregulated host response to infection resulting in life-threatening organ dysfunction. Sepsis-associated encephalopathy (SAE) is the main manifestation of sepsis. Inflammation, peroxidation stress injury, and apoptosis are the main factors involved in the pathogenesis of SAE. A growing body of evidence has proved that P2X7 receptor (P2X7R), a cationic channel receptor that is widely distributed in the body, plays a major role in the occurrence and development of inflammatory injury. Therefore, this review mainly describes the activation of P2X7R in sepsis, which leads to the recruitment of inflammatory cells to the cerebral vasculature, the destruction of the blood-brain barrier, the activation of microglial cells in the brain, the apoptosis of brain cells, and other damage processes. This review also illustrates the potential therapeutic value of P2X7R inhibition in SAE.
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Affiliation(s)
- Zhao Fan
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang261053, Shandong, China
| | - Kaifang Wang
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang261053, Shandong, China
| | - Xiaoyong Zhao
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang261053, Shandong, China
- The Affiliated Hospital of Weifang Medical University, Weifang261021, Shandong, China
| | - Xude Sun
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang261053, Shandong, China
- Department of Anesthesiology, Tangdu Hospital, Air Force Military Medical University, Xian710038, Shanxi, China
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8
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Burgess JK, Weiss DJ, Westergren-Thorsson G, Wigen J, Dean CH, Mumby S, Bush A, Adcock IM. Extracellular Matrix as a Driver of Chronic Lung Diseases. Am J Respir Cell Mol Biol 2024; 70:239-246. [PMID: 38190723 DOI: 10.1165/rcmb.2023-0176ps] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 01/05/2024] [Indexed: 01/10/2024] Open
Abstract
The extracellular matrix (ECM) is not just a three-dimensional scaffold that provides stable support for all cells in the lungs, but also an important component of chronic fibrotic airway, vascular, and interstitial diseases. It is a bioactive entity that is dynamically modulated during tissue homeostasis and disease, that controls structural and immune cell functions and drug responses, and that can release fragments that have biological activity and that can be used to monitor disease activity. There is a growing recognition of the importance of considering ECM changes in chronic airway, vascular, and interstitial diseases, including 1) compositional changes, 2) structural and organizational changes, and 3) mechanical changes and how these affect disease pathogenesis. As altered ECM biology is an important component of many lung diseases, disease models must incorporate this factor to fully recapitulate disease-driver pathways and to study potential novel therapeutic interventions. Although novel models are evolving that capture some or all of the elements of the altered ECM microenvironment in lung diseases, opportunities exist to more fully understand cell-ECM interactions that will help devise future therapeutic targets to restore function in chronic lung diseases. In this perspective article, we review evolving knowledge about the ECM's role in homeostasis and disease in the lung.
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Affiliation(s)
- Janette K Burgess
- Department of Pathology and Medical Biology
- Groningen Research Institute for Asthma and COPD, and
- W.J. Kolff Institute for Biomedical Engineering and Materials Science, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Daniel J Weiss
- Department of Medicine, University of Vermont, Burlington, Vermont
| | | | - Jenny Wigen
- Lung Biology Unit, Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Charlotte H Dean
- National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
| | - Sharon Mumby
- National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
| | - Andrew Bush
- National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
- Centre for Pediatrics and Child Health, Imperial College and Royal Brompton Hospital, London, United Kingdom
| | - Ian M Adcock
- National Heart and Lung Institute, Imperial College London, London, United Kingdom; and
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9
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Beach ZM, Nuss CA, Weiss SN, Soslowsky LJ. Neonatal Achilles Tendon Microstructure is Negatively Impacted by Decorin and Biglycan Knockdown After Injury and During Development. Ann Biomed Eng 2024; 52:657-670. [PMID: 38079083 DOI: 10.1007/s10439-023-03414-8] [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: 03/08/2023] [Accepted: 11/22/2023] [Indexed: 02/13/2024]
Abstract
Interest in studying neonatal development and the improved healing response observed in neonates is increasing, with the goal of using this work to create better therapeutics for tendon injury. Decorin and biglycan are two small leucine-rich proteoglycans that play important roles in collagen fibrillogenesis to develop, maintain, and repair tendon structure. However, little is known about the roles of decorin and biglycan in early neonatal development and healing. The goal of this study was to determine the effects of decorin and biglycan knockdown on Achilles tendon structure and mechanics during neonatal development and recovery of these properties after injury of the neonatal tendon. We hypothesized that knockdown of decorin and biglycan would disrupt the neonatal tendon developmental process and produce tendons with impaired mechanical and structural properties. We found that knockdown of decorin and biglycan in an inducible, compound decorin/biglycan knockdown model, both during development and after injury, in neonatal mice produced tendons with reduced mechanical properties. Additionally, the collagen fibril microstructure resembled an immature tendon with a large population of small diameter fibrils and an absence of larger diameter fibrils. Overall, this study demonstrates the importance of decorin and biglycan in facilitating tendon growth and maturation during neonatal development.
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Affiliation(s)
- Zakary M Beach
- McKay Orthopaedic Research Laboratory, University of Pennsylvania, Philadelphia, PA, USA
| | - Courtney A Nuss
- McKay Orthopaedic Research Laboratory, University of Pennsylvania, Philadelphia, PA, USA
| | - Stephanie N Weiss
- McKay Orthopaedic Research Laboratory, University of Pennsylvania, Philadelphia, PA, USA
| | - Louis J Soslowsky
- McKay Orthopaedic Research Laboratory, University of Pennsylvania, Philadelphia, PA, USA.
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10
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Zare N, Sharafeddin F, Montazerolghaem A, Moradiannezhad N, Araghizadeh M. NLRs and inflammasome signaling in opioid-induced hyperalgesia and tolerance. Inflammopharmacology 2024; 32:127-148. [PMID: 38153538 DOI: 10.1007/s10787-023-01402-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 11/18/2023] [Indexed: 12/29/2023]
Abstract
We investigated the role that innate immunological signaling pathways, principally nod-like receptors (NLRs) and inflammasomes, in the manifestation of the contradictory outcomes associated with opioids, namely hyperalgesia, and tolerance. The utilization of opioids for pain management is prevalent; nonetheless, it frequently leads to an increased sensitivity to pain (hyperalgesia) and reduced efficacy of the medication (tolerance) over an extended period. This, therefore, represents a major challenge in the area of chronic pain treatment. Recent studies indicate that the aforementioned negative consequences are partially influenced by the stimulation of NLRs, specifically the NLRP3 inflammasome, and the subsequent assembly of the inflammasome. This process ultimately results in the generation of inflammatory cytokines and the occurrence of neuroinflammation and the pathogenesis of hyperalgesia. We also explored the putative downstream signaling cascades activated by NOD-like receptors (NLRs) and inflammasomes in response to opioid stimuli. Furthermore, we probed potential therapeutic targets for modifying opioid-induced hyperalgesia, with explicit emphasis on the activation of the NLRP3 inflammasome. Ultimately, our findings underscore the significance of conducting additional research in this area that includes an examination of the involvement of various NLRs, immune cells, and genetic variables in the development of opioid-induced hyperalgesia and tolerance. The present review provides substantial insight into the possible pathways contributing to the occurrence of hyperalgesia and tolerance in individuals taking opioids.
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Affiliation(s)
- Nasrin Zare
- Clinical Research Development Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran.
- School of Medicine, Najafabad Branch, Islamic Azad University, Najafabad, Iran.
| | - Fateme Sharafeddin
- Clinical Research Development Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran
- School of Medicine, Najafabad Branch, Islamic Azad University, Najafabad, Iran
| | - AmirMahdi Montazerolghaem
- Clinical Research Development Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran
- School of Medicine, Najafabad Branch, Islamic Azad University, Najafabad, Iran
| | - Nastaran Moradiannezhad
- Clinical Research Development Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran
- School of Medicine, Najafabad Branch, Islamic Azad University, Najafabad, Iran
| | - Mohammaderfan Araghizadeh
- Clinical Research Development Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran
- School of Medicine, Najafabad Branch, Islamic Azad University, Najafabad, Iran
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11
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Kunnathattil M, Rahul P, Skaria T. Soluble vascular endothelial glycocalyx proteoglycans as potential therapeutic targets in inflammatory diseases. Immunol Cell Biol 2024; 102:97-116. [PMID: 37982607 DOI: 10.1111/imcb.12712] [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: 10/10/2023] [Revised: 10/30/2023] [Accepted: 10/30/2023] [Indexed: 11/21/2023]
Abstract
Reducing the activity of cytokines and leukocyte extravasation is an emerging therapeutic strategy to limit tissue-damaging inflammatory responses and restore immune homeostasis in inflammatory diseases. Proteoglycans embedded in the vascular endothelial glycocalyx, which regulate the activity of cytokines to restrict the inflammatory response in physiological conditions, are proteolytically cleaved in inflammatory diseases. Here we critically review the potential of proteolytically shed, soluble vascular endothelial glycocalyx proteoglycans to modulate pathological inflammatory responses. Soluble forms of the proteoglycans syndecan-1, syndecan-3 and biglycan exert beneficial anti-inflammatory effects by the removal of chemokines, suppression of proinflammatory cytokine expression and leukocyte migration, and induction of autophagy of proinflammatory M1 macrophages. By contrast, soluble versikine and decorin enhance proinflammatory responses by increasing inflammatory cytokine synthesis and leukocyte migration. Endogenous syndecan-2 and mimecan exert proinflammatory effects, syndecan-4 and perlecan mediate beneficial anti-inflammatory effects and glypican regulates Hh and Wnt signaling pathways involved in systemic inflammatory responses. Taken together, targeting the vascular endothelial glycocalyx-derived, soluble syndecan-1, syndecan-2, syndecan-3, syndecan-4, biglycan, versikine, mimecan, perlecan, glypican and decorin might be a potential therapeutic strategy to suppress overstimulated cytokine and leukocyte responses in inflammatory diseases.
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Affiliation(s)
- Maneesha Kunnathattil
- Department of Zoology, Government College Madappally, University of Calicut, Calicut, Kerala, India
| | - Pedapudi Rahul
- School of Biotechnology, National Institute of Technology Calicut, Calicut, Kerala, India
| | - Tom Skaria
- School of Biotechnology, National Institute of Technology Calicut, Calicut, Kerala, India
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12
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Miguez PA, Bash E, Musskopf ML, Tuin SA, Rivera-Concepcion A, Chapple ILC, Liu J. Control of tissue homeostasis by the extracellular matrix: Synthetic heparan sulfate as a promising therapeutic for periodontal health and bone regeneration. Periodontol 2000 2024; 94:510-531. [PMID: 37614159 PMCID: PMC10891305 DOI: 10.1111/prd.12515] [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: 06/19/2023] [Revised: 07/13/2023] [Accepted: 07/22/2023] [Indexed: 08/25/2023]
Abstract
Proteoglycans are core proteins associated with carbohydrate/sugar moieties that are highly variable in disaccharide composition, which dictates their function. These carbohydrates are named glycosaminoglycans, and they can be attached to proteoglycans or found free in tissues or on cell surfaces. Glycosaminoglycans such as hyaluronan, chondroitin sulfate, dermatan sulfate, keratan sulfate, and heparin/heparan sulfate have multiple functions including involvement in inflammation, immunity and connective tissue structure, and integrity. Heparan sulfate is a highly sulfated polysaccharide that is abundant in the periodontium including alveolar bone. Recent evidence supports the contention that heparan sulfate is an important player in modulating interactions between damage associated molecular patterns and inflammatory receptors expressed by various cell types. The structure of heparan sulfate is reported to dictate its function, thus, the utilization of a homogenous and structurally defined heparan sulfate polysaccharide for modulation of cell function offers therapeutic potential. Recently, a chemoenzymatic approach was developed to allow production of many structurally defined heparan sulfate carbohydrates. These oligosaccharides have been studied in various pathological inflammatory conditions to better understand their function and their potential application in promoting tissue homeostasis. We have observed that specific size and sulfation patterns can modulate inflammation and promote tissue maintenance including an anabolic effect in alveolar bone. Thus, new evidence provides a strong impetus to explore heparan sulfate as a potential novel therapeutic agent to treat periodontitis, support alveolar bone maintenance, and promote bone formation.
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Affiliation(s)
- PA Miguez
- Division of Comprehensive Oral Health - Periodontology, Adams School of Dentistry, University of North Carolina at Chapel Hill, NC, USA
| | - E Bash
- Division of Comprehensive Oral Health - Periodontology, Adams School of Dentistry, University of North Carolina at Chapel Hill, NC, USA
| | - ML Musskopf
- Division of Comprehensive Oral Health - Periodontology, Adams School of Dentistry, University of North Carolina at Chapel Hill, NC, USA
| | - SA Tuin
- Oral and Craniofacial Health Sciences, Adams School of Dentistry, University of North Carolina at Chapel Hill, NC, USA
| | - A Rivera-Concepcion
- Oral and Craniofacial Health Sciences, Adams School of Dentistry, University of North Carolina at Chapel Hill, NC, USA
| | - ILC Chapple
- Periodontal Research Group, School of Dentistry, Institute of Clinical Sciences, College of Medical and Dental Sciences, Birmingham’s NIHR BRC in Inflammation Research, University of Birmingham and Birmingham Community Health Foundation Trust, Birmingham UK Iain Chapple
| | - J Liu
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
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13
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Fan H, Sun Y, Zhang X, Xu Y, Ming Y, Zhang L, Zhao P. Malvidin promotes PGC-1α/Nrf2 signaling to attenuate the inflammatory response and restore mitochondrial activity in septic acute kidney injury. Chem Biol Interact 2024; 388:110850. [PMID: 38135199 DOI: 10.1016/j.cbi.2023.110850] [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: 06/30/2023] [Revised: 12/11/2023] [Accepted: 12/19/2023] [Indexed: 12/24/2023]
Abstract
Acute kidney injury (AKI) in sepsis is a vital and dangerous organ failure caused by an infection-induced dysregulation of the host reaction. Malvidin possesses significant anti-inflammatory and antioxidant bioactivities. This study explored the critical roles of malvidin in sepsis AKI and the crosstalk among mitochondrial function, nucleotide-binding oligomerization-like receptor 3 (NLRP3) inflammasome and nuclear factor erythroid 2 (Nrf2) signaling pathway. First, C57BL/6 mice were administered lipopolysaccharide intraperitoneally for 6 h to create an AKI model of sepsis. Hematoxylin-eosin staining and serum biomarker assays showed that malvidin protected from AKI in sepsis. Real-time fluorescence quantitative polymerase chain reaction analysis revealed that malvidin was able to inhibit inflammatory cytokines and mediators. Western blot assays indicated that malvidin suppressed NLRP3 inflammasome activation and enhanced antioxidant properties. Additionally, human renal tubular epithelial cells were stimulated by lipopolysaccharide/adenosine triphosphate to establish an NLRP3 inflammasome activation model in vitro, and in line with findings in vivo, malvidin significantly inhibited NLRP3 inflammasome activation. Furthermore, our data indicate that malvidin restored mitochondrial quality and function, reduced reactive oxygen species production, increased mitochondrial membrane potential, enhanced mitochondrial DNA copy number, and promoted peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α) nuclear translocation. Moreover, inhibitor blockade assays indicated that both PGC-1α and Nrf2 affected the inhibition of the NLRP3 inflammasome by malvidin. Finally, immunoprecipitation assays showed that malvidin promoted PGC-1α and Nrf2 interactions. Overall, malvidin alleviated lipopolysaccharide-induced sepsis AKI, improved mitochondrial function and mitochondrial biogenesis, and inhibited the NLRP3 inflammasome through the PGC-1α/Nrf2 signaling pathway, suggesting that malvidin might translate into clinical applications for sepsis AKI therapy.
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Affiliation(s)
- Hui Fan
- Institute of Neuroscience, Neurosurgery Department, The First People's Hospital of Lianyungang, Lianyungang, 222000, China; Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, College of Pharmacy, Jiangsu Ocean University, Lianyungang, 222005, China
| | - Yong Sun
- Institute of Neuroscience, Neurosurgery Department, The First People's Hospital of Lianyungang, Lianyungang, 222000, China
| | - Xiao Zhang
- Institute of Neuroscience, Neurosurgery Department, The First People's Hospital of Lianyungang, Lianyungang, 222000, China; Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, College of Pharmacy, Jiangsu Ocean University, Lianyungang, 222005, China
| | - Yao Xu
- Institute of Neuroscience, Neurosurgery Department, The First People's Hospital of Lianyungang, Lianyungang, 222000, China
| | - Yuanyuan Ming
- Institute of Neuroscience, Neurosurgery Department, The First People's Hospital of Lianyungang, Lianyungang, 222000, China
| | - Le Zhang
- Institute of Neuroscience, Neurosurgery Department, The First People's Hospital of Lianyungang, Lianyungang, 222000, China
| | - Panpan Zhao
- Institute of Neuroscience, Neurosurgery Department, The First People's Hospital of Lianyungang, Lianyungang, 222000, China.
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Fang ZE, Wang Y, Bian S, Qin S, Zhao H, Wen J, Liu T, Ren L, Li Q, Shi W, Zhao J, Yang H, Peng R, Wang Q, Bai Z, Xu G. Helenine blocks NLRP3 activation by disrupting the NEK7-NLRP3 interaction and ameliorates inflammatory diseases. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 122:155159. [PMID: 37931457 DOI: 10.1016/j.phymed.2023.155159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 09/19/2023] [Accepted: 10/19/2023] [Indexed: 11/08/2023]
Abstract
BACKGROUND The involvement of NLRP3 inflammasome is associated with the progress of numerous inflammatory conditions. However, there is currently no single compound used in the clinic. Search for the inhibitor of NLRP3 inflammasome from natural products is an attractive direction. The compound Helenin (Hel), which is obtained from Inula helenium L., is reported to have anti-inflammatory activities. However, the underlying molecular mechanisms and specific inflammatory signal pathway remains not well understood. PURPOSE This research aims to determine the impacts of Hel on NLRP3 inflammasome and the underlying mechanism involved, meanwhile also assessing its potential as a therapeutic intervention for inflammatory diseases mediated by NLRP3 overactivation. METHODS Pretreated with Hel in BMDMs (bone marrow-derived macrophages), then stimulated with NLRP3 triggers and measured the expression of active caspase-1 and interleukin 1β (IL-1β). Determination of intracellular K+ and Ca2+, ASC oligomerization and mitochondrial reactive oxygen species (mtROS) production were employed to explore the preliminary mechanism of Hel on NLRP3 activation. Subsequently, Co-immunoprecipitation was used to investigate protein-protein interaction and reduction of covalent bonds of Hel was to explore the binding mode between drugs and proteins. Finally, in vivo experiments, we utilized mouse lethal sepsis and monosodium urate(MSU)-induced peritonitis models to evaluate the effectiveness of Hel in inhibiting inflammatory diseases. RESULTS The findings revealed that Hel exhibited a specific blocking effect on NLRP3, with no impact on the assembly of NLRC4 and AIM2 inflammasome. Through the analysis of mechanisms targeting key upstream factors in NLRP3 activation, Hel inhibited NLRP3-dependent ASC oligomerization but did not regulating inflammasome priming, K+ efflux, Ca2+ influx, or mitochondrial damage and mtROS. Moreover, Hel effectively interrupted the binding of NEK7-NLRP3, which was dependent on the active double C=C of the α,β-unsaturated carbonyl units in Hel. In mouse models, Hel showed promising therapeutic effects in the treatment of NLRP3 overactivation-associated diseases, including the lethal sepsis and acute systemic inflammation induced by lipopolysaccharide (LPS) and peritonitis induced by MSU. CONCLUSION Our results indicate that Hel dependent α,β-unsaturated carbonyl units interrupt the formation of the NLRP3-NEK7 interaction, thereby blocks the inflammasome assemblage and activation. These fundings would suggest that Hel is a promising inhibitor for treating diseases driven by NLRP3 overactivation.
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Affiliation(s)
- Zhi-E Fang
- Department of Pharmacy, Chongqing Hospital of Traditional Chinese Medicine, Chongqing 400021, China; Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Yan Wang
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China; School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100105, China
| | - Shuyi Bian
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Shuanglin Qin
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China; School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China
| | - Huanying Zhao
- Core Facilities Center, Capital Medical University, Beijing, 100069, China
| | - Jincai Wen
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Tingting Liu
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Lutong Ren
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Qiang Li
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Wei Shi
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Jia Zhao
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Huijie Yang
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Rui Peng
- School of Pharmacy, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China
| | - Qin Wang
- Department of Pharmacy, Chongqing Hospital of Traditional Chinese Medicine, Chongqing 400021, China.
| | - Zhaofang Bai
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China.
| | - Guang Xu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China.
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15
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Li D, Hodges R, AukrustNaqvi M, Bair J, Bispo PJM, Gilmore MS, Gregory-Ksander M, Dartt DA. Staphylococcus aureus activates NRLP3-dependent IL-1β secretion from human conjunctival goblet cells using α toxin and toll-like receptors 2 and 1. Front Cell Infect Microbiol 2023; 13:1265471. [PMID: 38089811 PMCID: PMC10711068 DOI: 10.3389/fcimb.2023.1265471] [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] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 10/30/2023] [Indexed: 12/18/2023] Open
Abstract
We used cultured human conjunctival goblet cells to determine (i) whether the toxigenic S. aureus- induced activation of the epithelial goblet cells requires two signals to activate the NLRP3 inflammasome, (ii) if one signal is mediated by TLR1, TLR2, or TLR6, and (iii) if the S. aureus toxin α toxin is another signal for the activation of the inflammasome and secretion of mature IL-1β. Cultured cells were incubated with siRNA to knock down the different TLRs. After stimulation with toxigenic S. aureus RN6390, pro-IL-1β synthesis, caspase-1 activity, and mature IL-1β secretion were measured. In a separate set of experiments, the cells were incubated with toxigenic S. aureus RN6390 or mutant S. aureus ALC837 that does not express α toxin with or without exogenous α toxin. A gentamicin protection assay was used to determine if intracellular bacteria were active. We conclude that α toxin from toxigenic S. aureus triggers two separate mechanisms required for the activation of the NLRP3 inflammasome and secretion of mature IL-1β. In the first mechanism, α toxin secreted from internalized S. aureus produces a pore, allowing the internalized bacteria and associated pathogen-associated molecular patterns to interact with intracellular TLR2 and, to a lesser extent, TLR1. In the second mechanism, α toxin forms a pore in the plasma membrane, leading to an efflux of cytosolic K+ and influx of Ca2+. We conclude that α toxin by these two different mechanisms triggers the synthesis of pro-IL-1β and NLRP3 components, activation of capase-1, and secretion of mature IL-1β to defend against bacterial infection.
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Affiliation(s)
- Dayu Li
- Schepens Eye Research Institute/Massachusetts Eye and Ear, Boston, MA, United States
- Department of Ophthalmology Harvard Medical School, Boston, MA, United States
| | - Robin Hodges
- Schepens Eye Research Institute/Massachusetts Eye and Ear, Boston, MA, United States
- Department of Ophthalmology Harvard Medical School, Boston, MA, United States
| | - Maria AukrustNaqvi
- Department of Life Sciences and Health Faculty of Health Sciences Oslo Metropolitan University, Oslo, Norway
| | - Jeffrey Bair
- Schepens Eye Research Institute/Massachusetts Eye and Ear, Boston, MA, United States
| | - Paulo J. M. Bispo
- Department of Ophthalmology Harvard Medical School, Boston, MA, United States
- Massachusetts Eye and Ear, Boston, MA, United States
| | - Michael S. Gilmore
- Department of Ophthalmology Harvard Medical School, Boston, MA, United States
- Massachusetts Eye and Ear, Boston, MA, United States
| | - Meredith Gregory-Ksander
- Schepens Eye Research Institute/Massachusetts Eye and Ear, Boston, MA, United States
- Department of Ophthalmology Harvard Medical School, Boston, MA, United States
| | - Darlene A. Dartt
- Schepens Eye Research Institute/Massachusetts Eye and Ear, Boston, MA, United States
- Department of Ophthalmology Harvard Medical School, Boston, MA, United States
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16
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Xie C, Schaefer L, Iozzo RV. Global impact of proteoglycan science on human diseases. iScience 2023; 26:108095. [PMID: 37867945 PMCID: PMC10589900 DOI: 10.1016/j.isci.2023.108095] [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] [Indexed: 10/24/2023] Open
Abstract
In this comprehensive review, we will dissect the impact of research on proteoglycans focusing on recent developments involved in their synthesis, degradation, and interactions, while critically assessing their usefulness in various biological processes. The emerging roles of proteoglycans in global infections, specifically the SARS-CoV-2 pandemic, and their rising functions in regenerative medicine and biomaterial science have significantly affected our current view of proteoglycans and related compounds. The roles of proteoglycans in cancer biology and their potential use as a next-generation protein-based adjuvant therapy to combat cancer is also emerging as a constructive and potentially beneficial therapeutic strategy. We will discuss the role of proteoglycans in selected and emerging areas of proteoglycan science, such as neurodegenerative diseases, autophagy, angiogenesis, cancer, infections and their impact on mammalian diseases.
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Affiliation(s)
- Christopher Xie
- Department of Pathology and Genomic Medicine, the Translational Cellular Oncology Program, Sidney Kimmel Cancer Center, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Liliana Schaefer
- Institute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany
| | - Renato V. Iozzo
- Department of Pathology and Genomic Medicine, the Translational Cellular Oncology Program, Sidney Kimmel Cancer Center, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA 19107, USA
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17
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Krantz M, Eklund D, Särndahl E, Hedbrant A. A detailed molecular network map and model of the NLRP3 inflammasome. Front Immunol 2023; 14:1233680. [PMID: 38077364 PMCID: PMC10699087 DOI: 10.3389/fimmu.2023.1233680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 10/16/2023] [Indexed: 12/18/2023] Open
Abstract
The NLRP3 inflammasome is a key regulator of inflammation that responds to a broad range of stimuli. The exact mechanism of activation has not been determined, but there is a consensus on cellular potassium efflux as a major common denominator. Once NLRP3 is activated, it forms high-order complexes together with NEK7 that trigger aggregation of ASC into specks. Typically, there is only one speck per cell, consistent with the proposal that specks form - or end up at - the centrosome. ASC polymerisation in turn triggers caspase-1 activation, leading to maturation and release of IL-1β and pyroptosis, i.e., highly inflammatory cell death. Several gain-of-function mutations in the NLRP3 inflammasome have been suggested to induce spontaneous activation of NLRP3 and hence contribute to development and disease severity in numerous autoinflammatory and autoimmune diseases. Consequently, the NLRP3 inflammasome is of significant clinical interest, and recent attention has drastically improved our insight in the range of involved triggers and mechanisms of signal transduction. However, despite recent progress in knowledge, a clear and comprehensive overview of how these mechanisms interplay to shape the system level function is missing from the literature. Here, we provide such an overview as a resource to researchers working in or entering the field, as well as a computational model that allows for evaluating and explaining the function of the NLRP3 inflammasome system from the current molecular knowledge. We present a detailed reconstruction of the molecular network surrounding the NLRP3 inflammasome, which account for each specific reaction and the known regulatory constraints on each event as well as the mechanisms of drug action and impact of genetics when known. Furthermore, an executable model from this network reconstruction is generated with the aim to be used to explain NLRP3 activation from priming and activation to the maturation and release of IL-1β and IL-18. Finally, we test this detailed mechanistic model against data on the effect of different modes of inhibition of NLRP3 assembly. While the exact mechanisms of NLRP3 activation remains elusive, the literature indicates that the different stimuli converge on a single activation mechanism that is additionally controlled by distinct (positive or negative) priming and licensing events through covalent modifications of the NLRP3 molecule. Taken together, we present a compilation of the literature knowledge on the molecular mechanisms on NLRP3 activation, a detailed mechanistic model of NLRP3 activation, and explore the convergence of diverse NLRP3 activation stimuli into a single input mechanism.
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Affiliation(s)
- Marcus Krantz
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
- Inflammatory Response and Infection Susceptibility Centre (iRiSC), Örebro University, Örebro, Sweden
| | - Daniel Eklund
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
- Inflammatory Response and Infection Susceptibility Centre (iRiSC), Örebro University, Örebro, Sweden
| | - Eva Särndahl
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
- Inflammatory Response and Infection Susceptibility Centre (iRiSC), Örebro University, Örebro, Sweden
| | - Alexander Hedbrant
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
- Inflammatory Response and Infection Susceptibility Centre (iRiSC), Örebro University, Örebro, Sweden
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18
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Maiti G, Ashworth S, Choi T, Chakravarti S. Molecular cues for immune cells from small leucine-rich repeat proteoglycans in their extracellular matrix-associated and free forms. Matrix Biol 2023; 123:48-58. [PMID: 37793508 PMCID: PMC10841460 DOI: 10.1016/j.matbio.2023.10.001] [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: 06/01/2023] [Revised: 09/14/2023] [Accepted: 10/01/2023] [Indexed: 10/06/2023]
Abstract
In this review we highlight emerging immune regulatory functions of lumican, keratocan, fibromodulin, biglycan and decorin, which are members of the small leucine-rich proteoglycans (SLRP) of the extracellular matrix (ECM). These SLRPs have been studied extensively as collagen-fibril regulatory structural components of the skin, cornea, bone and cartilage in homeostasis. However, SLRPs released from a remodeling ECM, or synthesized by activated fibroblasts and immune cells contribute to an ECM-free pool in tissues and circulation, that may have a significant, but poorly understood foot print in inflammation and disease. Their molecular interactions and the signaling networks they influence also require investigations. Here we present studies on the leucine-rich repeat (LRR) motifs of SLRP core proteins, their evolutionary and functional relationships with other LRR pathogen recognition receptors, such as the toll-like receptors (TLRs) to bring some molecular clarity in the immune regulatory functions of SLRPs. We discuss molecular interactions of fragments and intact SLRPs, and how some of these interactions are likely modulated by glycosaminoglycan side chains. We integrate findings on molecular interactions of these SLRPs together with what is known about their presence in circulation and lymph nodes (LN), which are important sites of immune cell regulation. Recent bulk and single cell RNA sequencing studies have identified subsets of stromal reticular cells that express these SLRPs within LNs. An understanding of the cellular source, molecular interactions and signaling consequences will lead to a fundamental understanding of how SLRPs modulate immune responses, and to therapeutic tools based on these SLRPs in the future.
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Affiliation(s)
- George Maiti
- Department of Ophthalmology, NYU Grossman School of Medicine, New York, NY, United States
| | - Sean Ashworth
- Department of Ophthalmology, NYU Grossman School of Medicine, New York, NY, United States
| | - Tansol Choi
- Department of Ophthalmology, NYU Grossman School of Medicine, New York, NY, United States
| | - Shukti Chakravarti
- Department of Ophthalmology, NYU Grossman School of Medicine, New York, NY, United States; Department of Pathology, NYU Grossman School of Medicine, New York, NY, United States.
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19
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Sainz RM, Rodriguez-Quintero JH, Maldifassi MC, Stiles BM, Wennerberg E. Tumour immune escape via P2X7 receptor signalling. Front Immunol 2023; 14:1287310. [PMID: 38022596 PMCID: PMC10643160 DOI: 10.3389/fimmu.2023.1287310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 10/12/2023] [Indexed: 12/01/2023] Open
Abstract
While P2X7 receptor expression on tumour cells has been characterized as a promotor of cancer growth and metastasis, its expression by the host immune system is central for orchestration of both innate and adaptive immune responses against cancer. The role of P2X7R in anti-tumour immunity is complex and preclinical studies have described opposing roles of the P2X7R in regulating immune responses against tumours. Therefore, few P2X7R modulators have reached clinical testing in cancer patients. Here, we review the prognostic value of P2X7R in cancer, how P2X7R have been targeted to date in tumour models, and we discuss four aspects of how tumours skew immune responses to promote immune escape via the P2X7R; non-pore functional P2X7Rs, mono-ADP-ribosyltransferases, ectonucleotidases, and immunoregulatory cells. Lastly, we discuss alternative approaches to offset tumour immune escape via P2X7R to enhance immunotherapeutic strategies in cancer patients.
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Affiliation(s)
- Ricardo M. Sainz
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, United Kingdom
| | - Jorge Humberto Rodriguez-Quintero
- Department of Cardiovascular and Thoracic Surgery, Albert Einstein College of Medicine, Montefiore Health System, Bronx, NY, United States
| | - Maria Constanza Maldifassi
- Department of Cardiovascular and Thoracic Surgery, Albert Einstein College of Medicine, Montefiore Health System, Bronx, NY, United States
| | - Brendon M. Stiles
- Department of Cardiovascular and Thoracic Surgery, Albert Einstein College of Medicine, Montefiore Health System, Bronx, NY, United States
| | - Erik Wennerberg
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London, United Kingdom
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20
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Li H, Ghorbani S, Ling CC, Yong VW, Xue M. The extracellular matrix as modifier of neuroinflammation and recovery in ischemic stroke and intracerebral hemorrhage. Neurobiol Dis 2023; 186:106282. [PMID: 37683956 DOI: 10.1016/j.nbd.2023.106282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 09/01/2023] [Accepted: 09/05/2023] [Indexed: 09/10/2023] Open
Abstract
Stroke is the second leading cause of death worldwide and has two major subtypes: ischemic stroke and hemorrhagic stroke. Neuroinflammation is a pathological hallmark of ischemic stroke and intracerebral hemorrhage (ICH), contributing to the extent of brain injury but also in its repair. Neuroinflammation is intricately linked to the extracellular matrix (ECM), which is profoundly altered after brain injury and in aging. In the early stages after ischemic stroke and ICH, immune cells are involved in the deposition and remodeling of the ECM thereby affecting processes such as blood-brain barrier and cellular integrity. ECM components regulate leukocyte infiltration into the central nervous system, activate a variety of immune cells, and induce the elevation of matrix metalloproteinases (MMPs) after stroke. In turn, excessive MMPs may degrade ECM into components that are pro-inflammatory and injurious. Conversely, in the later stages after stroke, several ECM molecules may contribute to tissue recovery. For example, thrombospondin-1 and biglycan may promote activity of regulatory T cells, inhibit the synthesis of proinflammatory cytokines, and aid regenerative processes. We highlight these roles of the ECM in ischemic stroke and ICH and discuss their potential cellular and molecular mechanisms. Finally, we discuss therapeutics that could be considered to normalize the ECM in stroke. Our goal is to spur research on the ECM in order to improve the prognosis of ischemic stroke and ICH.
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Affiliation(s)
- Hongmin Li
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China; Academy of Medical Science, Zhengzhou University, Zhengzhou, Henan, China; Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Alberta, Canada
| | - Samira Ghorbani
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Alberta, Canada
| | - Chang-Chun Ling
- Department of Chemistry, University of Calgary, Alberta, Canada
| | - V Wee Yong
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Alberta, Canada.
| | - Mengzhou Xue
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
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21
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Hayashi K, Lesnak JB, Plumb AN, Rasmussen LA, Sluka KA. P2X7-NLRP3-Caspase-1 signaling mediates activity-induced muscle pain in male but not female mice. Pain 2023; 164:1860-1873. [PMID: 36930885 PMCID: PMC10363217 DOI: 10.1097/j.pain.0000000000002887] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 12/23/2022] [Indexed: 03/19/2023]
Abstract
ABSTRACT We developed an animal model of activity-induced muscle pain that is dependent on local macrophage activation and release of interleukin-1β (IL-1β). Activation of purinergic type 2X (P2X) 7 receptors recruits the NOD-like receptor protein (NLRP) 3 and activates Caspase-1 to release IL-1β. We hypothesized that pharmacological blockade of P2X7, NLRP3, and Caspase-1 would prevent development of activity-induced muscle pain in vivo and release of IL-1β from macrophages in vitro. The decrease in muscle withdrawal thresholds in male, but not female, mice was prevented by the administration of P2X7, NLRP3, and Caspase-1 inhibitors before induction of the model, whereas blockade of IL-1β before induction prevented muscle hyperalgesia in both male and female mice. Blockade of P2X7, NLRP3, Capsase-1, or IL-1β 24 hours, but not 1 week, after induction of the model alleviated muscle hyperalgesia in male, but not female, mice. mRNA expression of P2X7, NLRP3, Caspase-1, and IL-1β from muscle was increased 24 hours after induction of the model in both male and female mice. Using multiplex, increases in IL-1β induced by combining adenosine triphosphate with pH 6.5 in lipopolysaccharide-primed male and female macrophages were significantly lower with the presence of inhibitors of P2X7 (A740003), NLRP3 (MCC950), and Caspase-1 (Z-WEHD-FMK) when compared with the vehicle. The current data suggest the P2X7/NLRP3/Caspase-1 pathway contributed to activity-induced muscle pain initiation and early maintenance phases in male but not female, and not in late maintenance phases in male mice.
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Affiliation(s)
- Kazuhiro Hayashi
- Department of Physical Therapy and Rehabilitation Science, University of Iowa, Iowa City, IA, USA
| | - Joseph B. Lesnak
- Department of Physical Therapy and Rehabilitation Science, University of Iowa, Iowa City, IA, USA
| | - Ashley N. Plumb
- Department of Physical Therapy and Rehabilitation Science, University of Iowa, Iowa City, IA, USA
| | - Lynn A. Rasmussen
- Department of Physical Therapy and Rehabilitation Science, University of Iowa, Iowa City, IA, USA
| | - Kathleen A. Sluka
- Department of Physical Therapy and Rehabilitation Science, University of Iowa, Iowa City, IA, USA
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22
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Berdiaki A, Giatagana EM, Tzanakakis G, Nikitovic D. The Landscape of Small Leucine-Rich Proteoglycan Impact on Cancer Pathogenesis with a Focus on Biglycan and Lumican. Cancers (Basel) 2023; 15:3549. [PMID: 37509212 PMCID: PMC10377491 DOI: 10.3390/cancers15143549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/30/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Cancer development is a multifactorial procedure that involves changes in the cell microenvironment and specific modulations in cell functions. A tumor microenvironment contains tumor cells, non-malignant cells, blood vessels, cells of the immune system, stromal cells, and the extracellular matrix (ECM). The small leucine-rich proteoglycans (SLRPs) are a family of nineteen proteoglycans, which are ubiquitously expressed among mammalian tissues and especially abundant in the ECM. SLRPs are divided into five canonical classes (classes I-III, containing fourteen members) and non-canonical classes (classes IV-V, including five members) based on their amino-acid structural sequence, chromosomal organization, and functional properties. Variations in both the protein core structure and glycosylation status lead to SLRP-specific interactions with cell membrane receptors, cytokines, growth factors, and structural ECM molecules. SLRPs have been implicated in the regulation of cancer growth, motility, and invasion, as well as in cancer-associated inflammation and autophagy, highlighting their crucial role in the processes of carcinogenesis. Except for the class I SLRP decorin, to which an anti-tumorigenic role has been attributed, other SLPRs' roles have not been fully clarified. This review will focus on the functions of the class I and II SLRP members biglycan and lumican, which are correlated to various aspects of cancer development.
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Affiliation(s)
- Aikaterini Berdiaki
- Laboratory of Histology-Embryology, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Eirini-Maria Giatagana
- Laboratory of Histology-Embryology, Medical School, University of Crete, 71003 Heraklion, Greece
| | - George Tzanakakis
- Laboratory of Histology-Embryology, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Dragana Nikitovic
- Laboratory of Histology-Embryology, Medical School, University of Crete, 71003 Heraklion, Greece
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23
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Esser PR, Huber M, Martin SF. Endoplasmic reticulum stress and the inflammatory response in allergic contact dermatitis. Eur J Immunol 2023; 53:e2249984. [PMID: 37016198 DOI: 10.1002/eji.202249984] [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: 10/10/2022] [Revised: 01/26/2023] [Accepted: 03/03/2023] [Indexed: 04/06/2023]
Abstract
Maintaining homeostasis is central to organismal health. Deviation is detected by a variety of sensors that react to alarm signals arising from injury, infection, and other inflammatory triggers. One important element of this alarm system is the innate immune system, which recognizes pathogen-/microbe- or damage-associated molecular patterns via pattern recognition receptors localized in the cytosol or in membranes of innate immune cells such as macrophages, dendritic cells, and mast cells but also of T cells, B cells, and epithelial cells. Activation of the innate immune system results in inflammation and is a pre-requisite for activation of the adaptive immune system. Another important element is represented by the unfolded protein response (UPR), a stress response of the endoplasmic reticulum. The UPR regulates proteostasis and also contributes to the course of inflammatory diseases such as cancer, diabetes, obesity, and neurodegenerative diseases. In addition, the UPR is instrumental in allergic contact dermatitis. This inflammatory skin disease, affecting 5-10% of the population, is caused by T cells recognizing low-molecular weight organic chemicals and metal ions. In this mini-review, we discuss the orchestration of inflammatory responses by the interplay of the innate immune system with cellular stress responses in allergic contact dermatitis, with a focus on the UPR.
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Affiliation(s)
- Philipp R Esser
- Allergy Research Group, Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Michael Huber
- Institute of Biochemistry and Molecular Immunology, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Stefan F Martin
- Allergy Research Group, Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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24
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Gesteira TF, Verma S, Coulson-Thomas VJ. Small leucine rich proteoglycans: Biology, function and their therapeutic potential in the ocular surface. Ocul Surf 2023; 29:521-536. [PMID: 37355022 PMCID: PMC11092928 DOI: 10.1016/j.jtos.2023.06.013] [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: 04/20/2023] [Revised: 06/13/2023] [Accepted: 06/21/2023] [Indexed: 06/26/2023]
Abstract
Small leucine rich proteoglycans (SLRPs) are the largest family of proteoglycans, with 18 members that are subdivided into five classes. SLRPs are small in size and can be present in tissues as glycosylated and non-glycosylated proteins, and the most studied SLRPs include decorin, biglycan, lumican, keratocan and fibromodulin. SLRPs specifically bind to collagen fibrils, regulating collagen fibrillogenesis and the biomechanical properties of tissues, and are expressed at particularly high levels in fibrous tissues, such as the cornea. However, SLRPs are also very active components of the ECM, interacting with numerous growth factors, cytokines and cell surface receptors. Therefore, SLRPs regulate major cellular processes and have a central role in major fundamental biological processes, such as maintaining corneal homeostasis and transparency and regulating corneal wound healing. Over the years, mutations and/or altered expression of SLRPs have been associated with various corneal diseases, such as congenital stromal corneal dystrophy and cornea plana. Recently, there has been great interest in harnessing the various functions of SLRPs for therapeutic purposes. In this comprehensive review, we describe the structural features and the related functions of SLRPs, and how these affect the therapeutic potential of SLRPs, with special emphasis on the use of SLRPs for treating ocular surface pathologies.
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Affiliation(s)
| | - Sudhir Verma
- College of Optometry, University of Houston, USA; Department of Zoology, Deen Dayal Upadhyaya College, University of Delhi, Delhi, India
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25
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Peng P, Yu Y, Ma W, Lyu S, Ma L, Liu T, Dong Y, Wei C. Proteomic characterization of aqueous humor in corneal endothelial decompensation after penetrating keratoplasty. Exp Eye Res 2023; 230:109457. [PMID: 36948439 DOI: 10.1016/j.exer.2023.109457] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 02/28/2023] [Accepted: 03/19/2023] [Indexed: 03/24/2023]
Abstract
Corneal endothelial decompensation (CED) is the major cause of the long-term graft failure, but the underlying mechanisms remain unclear. The purpose of this study was to characterize the proteomic profile in CED aqueous humor (AH) after penetrating keratoplasty (PKP). We collected AH samples (n = 6/group) from CED patients underwent PKP and cataract patients, respectively. The label-free quantitative proteomic analysis was performed to identify the differentially-expressed proteins (DEPs). The biological functions of DEPs were evaluated using Gene Ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genome (KEGG) analysis. The protein-protein interaction (PPI) network construction was employed to distinguish the hub proteins of DEPs, and the selected proteins were validated by parallel reaction monitoring (PRM). The human peripheral blood mononuclear cells (PBMCs) were adopted to investigate the effect of biglycan (BGN) on inflammatory response, and the subsequent outcomes of inflammation on human corneal endothelial cells (HCECs). A total of 174 DEPs were identified in CED AH of patients underwent PKP, including 102 up-regulated proteins and 72 down-regulated proteins. Bioinformatics analysis revealed the significant enrichment of cytokine-mediated signaling pathway and extracellular matrix (ECM) organization in the up-regulated proteins, as well as the alterations of cellular components, including the increase of collagen and complement component C1 complex, and reduction in extracellular exosomes. A hub protein cluster of 15 proteins was determined by Molecular Complex Detection (MCODE), including FN1, BGN, COMP, COL11A1, COLA3A1, and COL1A1. Moreover, BGN promoted pro-inflammatory cytokine (such as TNF-α, IL-1β and IL-6) production in PBMCs through NF-κB signaling pathway, which subsequently resulted in HCECs death. These findings provided a systemic protein profile of AH in CED patients after corneal transplantation, with the alterations implicated in cytokine-mediated signaling, ECM, complement system, and exsomes. The identified proteins and signaling pathways probably paved the novel insight into understanding the pathogenesis of the disease.
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Affiliation(s)
- Peng Peng
- Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Yaoyao Yu
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Wenhui Ma
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China
| | - Shanmei Lyu
- Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Li Ma
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Ting Liu
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Yanling Dong
- Qingdao Eye Hospital of Shandong First Medical University, Qingdao, China.
| | - Chao Wei
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China.
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26
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Heggli I, Laux CJ, Mengis T, Karol A, Cornaz F, Herger N, Aradi‐Vegh B, Widmer J, Burkhard MD, Farshad‐Amacker NA, Pfammatter S, Wolski WE, Brunner F, Distler O, Farshad M, Dudli S. Modic type 2 changes are fibroinflammatory changes with complement system involvement adjacent to degenerated vertebral endplates. JOR Spine 2023; 6:e1237. [PMID: 36994463 PMCID: PMC10041382 DOI: 10.1002/jsp2.1237] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/04/2022] [Accepted: 12/02/2022] [Indexed: 12/25/2022] Open
Abstract
Background Vertebral endplate signal intensity changes visualized by magnetic resonance imaging termed Modic changes (MC) are highly prevalent in low back pain patients. Interconvertibility between the three MC subtypes (MC1, MC2, MC3) suggests different pathological stages. Histologically, granulation tissue, fibrosis, and bone marrow edema are signs of inflammation in MC1 and MC2. However, different inflammatory infiltrates and amount of fatty marrow suggest distinct inflammatory processes in MC2. Aims The aims of this study were to investigate (i) the degree of bony (BEP) and cartilage endplate (CEP) degeneration in MC2, (ii) to identify inflammatory MC2 pathomechanisms, and (iii) to show that these marrow changes correlate with severity of endplate degeneration. Methods Pairs of axial biopsies (n = 58) spanning the entire vertebral body including both CEPs were collected from human cadaveric vertebrae with MC2. From one biopsy, the bone marrow directly adjacent to the CEP was analyzed with mass spectrometry. Differentially expressed proteins (DEPs) between MC2 and control were identified and bioinformatic enrichment analysis was performed. The other biopsy was processed for paraffin histology and BEP/CEP degenerations were scored. Endplate scores were correlated with DEPs. Results Endplates from MC2 were significantly more degenerated. Proteomic analysis revealed an activated complement system, increased expression of extracellular matrix proteins, angiogenic, and neurogenic factors in MC2 marrow. Endplate scores correlated with upregulated complement and neurogenic proteins. Discussion The inflammatory pathomechanisms in MC2 comprises activation of the complement system. Concurrent inflammation, fibrosis, angiogenesis, and neurogenesis indicate that MC2 is a chronic inflammation. Correlation of endplate damage with complement and neurogenic proteins suggest that complement system activation and neoinnervation may be linked to endplate damage. The endplate-near marrow is the pathomechanistic site, because MC2 occur at locations with more endplate degeneration. Conclusion MC2 are fibroinflammatory changes with complement system involvement which occur adjacent to damaged endplates.
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Affiliation(s)
- Irina Heggli
- Center of Experimental Rheumatology, Balgrist Campus, University Hospital Zurich and Balgrist University Hospital, University of ZurichZurichSwitzerland
| | - Christoph J. Laux
- Department of Orthopedics, Balgrist University HospitalUniversity of ZurichZurichSwitzerland
| | - Tamara Mengis
- Center of Experimental Rheumatology, Balgrist Campus, University Hospital Zurich and Balgrist University Hospital, University of ZurichZurichSwitzerland
| | - Agnieszka Karol
- Department of Molecular Mechanisms of DiseaseUniversity of ZurichZurichSwitzerland
| | - Frédéric Cornaz
- Department of Orthopedics, Balgrist University HospitalUniversity of ZurichZurichSwitzerland
| | - Nick Herger
- Center of Experimental Rheumatology, Balgrist Campus, University Hospital Zurich and Balgrist University Hospital, University of ZurichZurichSwitzerland
| | - Borbala Aradi‐Vegh
- Center of Experimental Rheumatology, Balgrist Campus, University Hospital Zurich and Balgrist University Hospital, University of ZurichZurichSwitzerland
| | - Jonas Widmer
- Department of Orthopedics, Balgrist University HospitalUniversity of ZurichZurichSwitzerland
| | - Marco D. Burkhard
- Department of Orthopedics, Balgrist University HospitalUniversity of ZurichZurichSwitzerland
| | | | - Sibylle Pfammatter
- Functional Genomics Center Zurich, University and ETH ZurichZurichSwitzerland
| | - Witold E. Wolski
- Functional Genomics Center Zurich, University and ETH ZurichZurichSwitzerland
- Swiss Institute of BioinformaticsLausanneSwitzerland
| | - Florian Brunner
- Department of Physical Medicine and RheumatologyBalgrist University Hospital, University of ZurichZurichSwitzerland
| | - Oliver Distler
- Center of Experimental Rheumatology, Balgrist Campus, University Hospital Zurich and Balgrist University Hospital, University of ZurichZurichSwitzerland
| | - Mazda Farshad
- Department of Orthopedics, Balgrist University HospitalUniversity of ZurichZurichSwitzerland
| | - Stefan Dudli
- Center of Experimental Rheumatology, Balgrist Campus, University Hospital Zurich and Balgrist University Hospital, University of ZurichZurichSwitzerland
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27
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Long J, Qin Z, Chen G, Song B, Zhang Z. Decellularized extracellular matrix (d-ECM): the key role of the inflammatory process in pre-regeneration after implantation. Biomater Sci 2023; 11:1215-1235. [PMID: 36625281 DOI: 10.1039/d2bm01204a] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Clinical medicine is encountering the challenge of repairing soft-tissue defects. Currently, natural and synthetic materials have been developed as natural scaffolds. Among them, the decellularized extracellular matrix (d-ECM) can achieve tissue remodeling following injury and, thus, replace defects due to its advantages of the extensiveness of the source and excellent biological and mechanical properties. However, by analyzing the existing decellularization techniques, we found that different preparation methods directly affect the residual components of the d-ECM, and further have different effects on inflammation and regeneration of soft tissues. Therefore, we analyzed the role of different residual components of the d-ECM after decellularization. Then, we explored the inflammatory process and immune cells in an attempt to understand the mechanisms and causes of tissue degeneration and regeneration after transplantation. In this paper, we summarize the current studies related to updated protocols for the preparation of the d-ECM, biogenic and exogenous residual substances, inflammation, and immune cells influencing the fate of the d-ECM.
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Affiliation(s)
- Jie Long
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China.
| | - Zijin Qin
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China.
| | - Guo Chen
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China.
| | - Baoqiang Song
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China.
| | - Ziang Zhang
- Department of Plastic and Reconstructive Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China.
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28
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Scuruchi M, Mannino F, Imbesi C, Pallio G, Vermiglio G, Bagnato G, Minutoli L, Bitto A, Squadrito F, Irrera N. Biglycan Involvement in Heart Fibrosis: Modulation of Adenosine 2A Receptor Improves Damage in Immortalized Cardiac Fibroblasts. Int J Mol Sci 2023; 24:ijms24021784. [PMID: 36675295 PMCID: PMC9866951 DOI: 10.3390/ijms24021784] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/29/2022] [Accepted: 01/13/2023] [Indexed: 01/17/2023] Open
Abstract
Cardiac fibrosis is a common pathological feature of different cardiovascular diseases, characterized by the aberrant deposition of extracellular matrix (ECM) proteins in the cardiac interstitium, myofibroblast differentiation and increased fibrillar collagen deposition stimulated by transforming growth factor (TGF)-β activation. Biglycan (BGN), a small leucine-rich proteoglycan (SLRPG) integrated within the ECM, plays a key role in matrix assembly and the phenotypic control of cardiac fibroblasts. Moreover, BGN is critically involved in pathological cardiac remodeling through TGF-β binding, thus causing myofibroblast differentiation and proliferation. Adenosine receptors (ARs), and in particular A2AR, may play a key role in stimulating fibrotic damage through collagen production/deposition, as a consequence of cyclic AMP (cAMP) and AKT activation. For this reason, A2AR modulation could be a useful tool to manage cardiac fibrosis in order to reduce fibrotic scar deposition in heart tissue. Therefore, the aim of the present study was to investigate the possible crosstalk between A2AR and BGN modulation in an in vitro model of TGF-β-induced fibrosis. Immortalized human cardiac fibroblasts (IM-HCF) were stimulated with TGF-β at the concentration of 10 ng/mL for 24 h to induce a fibrotic phenotype. After applying the TGF-β stimulus, cells were treated with two different A2AR antagonists, Istradefylline and ZM241385, for an additional 24 h, at the concentration of 10 µM and 1 µM, respectively. Both A2AR antagonists were able to regulate the oxidative stress induced by TGF-β through intracellular reactive oxygen species (ROS) reduction in IM-HCFs. Moreover, collagen1a1, MMPs 3/9, BGN, caspase-1 and IL-1β gene expression was markedly decreased following A2AR antagonist treatment in TGF-β-challenged human fibroblasts. The results obtained for collagen1a1, SMAD3, α-SMA and BGN were also confirmed when protein expression was evaluated; phospho-Akt protein levels were also reduced following Istradefylline and ZM241385 use, thus suggesting that collagen production involves AKT recruited by the A2AR. These results suggest that A2AR modulation might be an effective therapeutic option to reduce the fibrotic processes involved in heart pathological remodeling.
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Affiliation(s)
- Michele Scuruchi
- Department of Clinical and Experimental Medicine, University of Messina, Via C. Valeria, 98125 Messina, Italy
| | - Federica Mannino
- Department of Clinical and Experimental Medicine, University of Messina, Via C. Valeria, 98125 Messina, Italy
| | - Chiara Imbesi
- Department of Clinical and Experimental Medicine, University of Messina, Via C. Valeria, 98125 Messina, Italy
| | - Giovanni Pallio
- Department of Clinical and Experimental Medicine, University of Messina, Via C. Valeria, 98125 Messina, Italy
| | - Giovanna Vermiglio
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences, University of Messina, Via C. Valeria, 98125 Messina, Italy
| | - Gianluca Bagnato
- Department of Clinical and Experimental Medicine, University of Messina, Via C. Valeria, 98125 Messina, Italy
| | - Letteria Minutoli
- Department of Clinical and Experimental Medicine, University of Messina, Via C. Valeria, 98125 Messina, Italy
| | - Alessandra Bitto
- Department of Clinical and Experimental Medicine, University of Messina, Via C. Valeria, 98125 Messina, Italy
| | - Francesco Squadrito
- Department of Clinical and Experimental Medicine, University of Messina, Via C. Valeria, 98125 Messina, Italy
- Correspondence:
| | - Natasha Irrera
- Department of Clinical and Experimental Medicine, University of Messina, Via C. Valeria, 98125 Messina, Italy
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29
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Vallés PG, Gil Lorenzo AF, Garcia RD, Cacciamani V, Benardon ME, Costantino VV. Toll-like Receptor 4 in Acute Kidney Injury. Int J Mol Sci 2023; 24:ijms24021415. [PMID: 36674930 PMCID: PMC9864062 DOI: 10.3390/ijms24021415] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/06/2022] [Accepted: 12/13/2022] [Indexed: 01/13/2023] Open
Abstract
Acute kidney injury (AKI) is a common and devastating pathologic condition, associated with considerable high morbidity and mortality. Although significant breakthroughs have been made in recent years, to this day no effective pharmacological therapies for its treatment exist. AKI is known to be connected with intrarenal and systemic inflammation. The innate immune system plays an important role as the first defense response mechanism to tissue injury. Toll-like receptor 4 (TLR4) is a well-characterized pattern recognition receptor, and increasing evidence has shown that TLR4 mediated inflammatory response, plays a pivotal role in the pathogenesis of acute kidney injury. Pathogen-associated molecular patterns (PAMPS), which are the conserved microbial motifs, are sensed by these receptors. Endogenous molecules generated during tissue injury, and labeled as damage-associated molecular pattern molecules (DAMPs), also activate pattern recognition receptors, thereby offering an understanding of sterile types of inflammation. Excessive, uncontrolled and/or sustained activation of TLR4, may lead to a chronic inflammatory state. In this review we describe the role of TLR4, its endogenous ligands and activation in the inflammatory response to ischemic/reperfusion-induced AKI and sepsis-associated AKI. The potential regeneration signaling patterns of TLR4 in acute kidney injury, are also discussed.
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Affiliation(s)
- Patricia G. Vallés
- Área de Fisiopatología, Departamento de Patología, Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Centro Universitario, Mendoza 5500, Argentina
- IMBECU-CONICET (Instituto de Medicina y Biología Experimental de Cuyo—Consejo Nacional de Investigaciones Científicas y Técnicas), Mendoza 5500, Argentina
- Correspondence:
| | - Andrea Fernanda Gil Lorenzo
- Área de Fisiopatología, Departamento de Patología, Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Centro Universitario, Mendoza 5500, Argentina
| | - Rodrigo D. Garcia
- Área de Fisiopatología, Departamento de Patología, Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Centro Universitario, Mendoza 5500, Argentina
| | - Valeria Cacciamani
- IMBECU-CONICET (Instituto de Medicina y Biología Experimental de Cuyo—Consejo Nacional de Investigaciones Científicas y Técnicas), Mendoza 5500, Argentina
| | - María Eugenia Benardon
- Área de Fisiopatología, Departamento de Patología, Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Centro Universitario, Mendoza 5500, Argentina
| | - Valeria Victoria Costantino
- IMBECU-CONICET (Instituto de Medicina y Biología Experimental de Cuyo—Consejo Nacional de Investigaciones Científicas y Técnicas), Mendoza 5500, Argentina
- Área de Biología Celular, Departamento de Morfofisiología, Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Centro Universitario, Mendoza 5500, Argentina
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30
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Guahmich NL, Man L, Wang J, Arazi L, Kallinos E, Topper-Kroog A, Grullon G, Zhang K, Stewart J, Schatz-Siemers N, Jones SH, Bodine R, Zaninovic N, Schattman G, Rosenwaks Z, James D. Human theca arises from ovarian stroma and is comprised of three discrete subtypes. Commun Biol 2023; 6:7. [PMID: 36599970 DOI: 10.1038/s42003-022-04384-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 12/15/2022] [Indexed: 01/05/2023] Open
Abstract
Theca cells serve multiple essential functions during the growth and maturation of ovarian follicles, providing structural, metabolic, and steroidogenic support. While the function of theca during folliculogenesis is well established, their cellular origins and the differentiation hierarchy that generates distinct theca sub-types, remain unknown. Here, we performed single cell multi-omics analysis of primary cell populations purified from human antral stage follicles (1-3 mm) to define the differentiation trajectory of theca/stroma cells. We then corroborated the temporal emergence and growth kinetics of defined theca/stroma subpopulations using human ovarian tissue samples and xenografts of cryopreserved/thawed ovarian cortex, respectively. We identified three lineage specific derivatives termed structural, androgenic, and perifollicular theca cells, as well as their putative lineage-negative progenitor. These findings provide a framework for understanding the differentiation process that occurs in each primordial follicle and identifies specific cellular/molecular phenotypes that may be relevant to either diagnosis or treatment of ovarian pathologies.
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Affiliation(s)
- Nicole Lustgarten Guahmich
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Limor Man
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Jerry Wang
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Laury Arazi
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Eleni Kallinos
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Ariana Topper-Kroog
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Gabriel Grullon
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Kimberly Zhang
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Joshua Stewart
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Nina Schatz-Siemers
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Sam H Jones
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Richard Bodine
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Nikica Zaninovic
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Glenn Schattman
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Zev Rosenwaks
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Daylon James
- Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, NY, 10065, USA.
- Department of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY, 10065, USA.
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Zhang K, Jia Y, Qian Y, Jiang X, Zhang S, Liu B, Cao J, Song Y, Mao W. Staphylococcus aureus increases Prostaglandin E 2 secretion in cow neutrophils by activating TLR2, TLR4, and NLRP3 inflammasome signaling pathways. Front Microbiol 2023; 14:1163261. [PMID: 37168122 PMCID: PMC10165004 DOI: 10.3389/fmicb.2023.1163261] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 03/24/2023] [Indexed: 05/13/2023] Open
Abstract
Introduction In clinical settings, dairy cows are often attacked by pathogenic bacteria after delivery, especially Staphylococcus aureus (S. aureus). Neutrophils have long been regarded as essential for host defense against S. aureus. Prostaglandin E2 (PGE2) can additionally be used as an inflammatory mediator in pathological conditions to promote the repair of inflammatory injuries. However, whether S. aureus can promote the accumulation of PGE2 after the infection of neutrophils in cows and its mechanism remain unclear. Lipoprotein is an important immune bioactive ingredient of S. aureus. Methods In this study, the changes in neutrophils were monitored in dairy cows infected with wild-type S. aureus (SA113) and an S. aureus lipoprotein-deficient strain (Δlgt); meanwhile, we established whether pattern recognition receptors mediate this process and whether S. aureus lipoproteins are necessary for causing the release of PGE2 from cow neutrophils. Results The results showed that Δlgt was less effective than SA113 in inducing the production of IL-1β, IL-6, IL-8, IL-10, and PGE2 within neutrophils; furthermore, TLR2, TLR4, and NLRP3 receptors were found to mediate the inducible effect of lipoprotein on the above inflammation mediators and cytokines, which depended on MAPK and Caspase-1 signaling pathways. In addition, TLR2, TLR4, and NLRP3 inhibitors significantly inhibited PGE2 and cytokine secretion, and PGE2 was involved in the interaction of S. aureus and neutrophils in dairy cows, which could be regulated by TLR2, TLR4, and NLRP3 receptors. We also found that S. aureus was more likely to be killed by neutrophils when it lacked lipoprotein and TLR2, TLR4, and NLRP3 were involved, but PGE2 seemed to have no effect. Discussion Taken together, these results suggest that lipoprotein is a crucial component of S. aureus in inducing cytokine secretion by neutrophils as well as killing within neutrophils, which could be accomplished by the accumulation of PGE2 by activating MAPK and the Caspase-1 signaling pathways through TLR2, TLR4, and NLRP3 receptors. These results will contribute to a better understanding of the interaction between S. aureus and host immune cells in dairy cows.
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Affiliation(s)
- Kai Zhang
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
- Key Laboratory of Animal Clinical Treatment Technology, Ministry of Agriculture, Huhhot, China
| | - Yan Jia
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
- Key Laboratory of Animal Clinical Treatment Technology, Ministry of Agriculture, Huhhot, China
| | - Yinghong Qian
- Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Huhhot, China
| | - Xueying Jiang
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
- Key Laboratory of Animal Clinical Treatment Technology, Ministry of Agriculture, Huhhot, China
| | - Shuangyi Zhang
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
- Key Laboratory of Animal Clinical Treatment Technology, Ministry of Agriculture, Huhhot, China
| | - Bo Liu
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
- Key Laboratory of Animal Clinical Treatment Technology, Ministry of Agriculture, Huhhot, China
| | - Jinshan Cao
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
- Key Laboratory of Animal Clinical Treatment Technology, Ministry of Agriculture, Huhhot, China
| | - Yongli Song
- Stem Cell and Microbiology, Inner Mongolia University, Huhhot, China
| | - Wei Mao
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Huhhot, China
- Key Laboratory of Animal Clinical Treatment Technology, Ministry of Agriculture, Huhhot, China
- *Correspondence: Wei Mao
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32
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Liu YH, Liu Y, Xin YF, Zhang Q, Ding ML. Identification of key genes involved in calcific aortic valve disease based on integrated bioinformatics analysis. Exp Biol Med (Maywood) 2023; 248:52-60. [PMID: 36151748 PMCID: PMC9989152 DOI: 10.1177/15353702221118088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The calcific aortic valve disease (CAVD) develops as an aortic valve sclerosis and progresses to an advanced form of stenosis. In many biological fields, bioinformatics becomes a fundamental component. The key mechanisms involved in CAVD are discovered with the use of bioinformatics to investigate gene function and pathways. We downloaded the original data (GSE51472) from the Gene Expression Omnibus (GEO) database (http://www.ncbi.nlm.nih.gov/geo/). After standardization, 2978 differentially expressed genes (DEGs) were identified from the data sets GSE51472 containing samples from normal, calcified, and sclerotic aortic valves. Analysis of DEGs based on the series test of clusters (STCs) revealed the two most significant patterns. Based on the result of the STC, the functional enrichment analysis of gene ontology (GO) was conducted to investigate the molecular function (MF), biological process (BP), and cell compound (CC) of the DEGs. With a p value of 0.01, DEGs associated with "chronic inflammation," "T-cell receptor complexes," and "antigen binding" had the highest significance within BP, CC, and MF. DEG enrichment in signaling pathways was analyzed using KEGG pathway enrichment. Using a p < 0.05 level of significance, the most enriched biological pathways related to CAVD were "Chemokine signaling pathway," "Cytokine-cytokine receptor interaction," "Tuberculosis," "PI3K-Akt signaling pathway," and "Transcriptional misregulation in cancer." Finally, the construction of gene co-expression networks and pathway networks illustrated the pathogensis of CAVD. TLR2, CD86, and TYROBP were identified as hub genes for the development of CAVD. Moreover, "MAPK signaling pathway," "Apoptosis," and "Pathways in cancer" were regarded as the core pathways among the samples of normal, sclerotic and calcified aortic valve samples.
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Affiliation(s)
- Ye-Hong Liu
- Department of Cardiology, Shanghai East Hospital, Shanghai Tongji University School of Medicine, Shanghai 200120, China
| | - Yang Liu
- Department of Intensive Care Unit, Shanghai East Hospital, Shanghai Tongji University School of Medicine, Shanghai 200120, China
| | - Yuan-Feng Xin
- Department of Cardiovascular Surgery, Shanghai East Hospital, Shanghai Tongji University School of Medicine, Shanghai 200120, China
| | - Qi Zhang
- Department of Cardiology, Shanghai East Hospital, Shanghai Tongji University School of Medicine, Shanghai 200120, China
| | - Meng-Lei Ding
- Department of Clinical Laboratory, Shanghai East Hospital, Shanghai Tongji University School of Medicine, Shanghai 200120, China
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Zeng-Brouwers J, Huber LS, Merline R, Trebicka J, Wygrecka M, Schaefer L. Evaluation of the In Vitro and In Vivo Effects of Biglycan in Innate Immunity. Methods Mol Biol 2023; 2619:109-124. [PMID: 36662466 DOI: 10.1007/978-1-0716-2946-8_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Biglycan, a small leucine-rich proteoglycan (SLRP), is a crucial component of the extracellular matrix (ECM) associated with the maintenance of tissue homeostasis. In response to tissue damage, the ECM-derived soluble form of biglycan acts as a danger signal by triggering an inflammatory response via the toll-like receptor (TLR)2/TLR4 in macrophages and dendritic cells. The impact and signaling mechanism of biglycan in innate immunity is better understood with the use of specific and reliable research tools and investigation techniques. Accordingly, our lab has established explicit and detailed experimental protocols to examine the in vitro and in vivo effects of biglycan in cellular immune responses. To evaluate the in vitro effects of biglycan on macrophage activation, a comprehensive protocol that makes use of murine peritoneal macrophages has been described. Further, to study the in vivo effects of biglycan, a method that uses a pLIVE vector to generate transgenic mice transiently overexpressing human biglycan is detailed. A step-by-step protocol for analyzing the effects of soluble biglycan overexpression in transgenic mice is explained under the following sections: (1) construction of pLIVE-hBGN plasmid, (2) intravenous delivery of transgenic vector, (3) identification of hBGN transgene in hepatocytes (4) detection of transgenic biglycan protein in the plasma of transgenic mice, and (5) evaluation of the presence and pro-inflammatory effects of transgenic biglycan in extrahepatic mouse tissues.
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Affiliation(s)
- Jinyang Zeng-Brouwers
- Pharmazentrum Frankfurt/ZAFES, Institute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany
| | - Lisa Sophie Huber
- Pharmazentrum Frankfurt/ZAFES, Institute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany
| | - Rosetta Merline
- Pharmazentrum Frankfurt/ZAFES, Institute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany
| | - Jonel Trebicka
- Department of Internal Medicine B, University Hospital Muenster (UKM), Muenster, Germany
| | - Malgorzata Wygrecka
- Center for Infection and Genomics of the Lung (CIGL), Faculty of Medicine, Justus Liebig University, Giessen, Germany
| | - Liliana Schaefer
- Pharmazentrum Frankfurt/ZAFES, Institute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany.
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Vaxevanis CK, Bauer M, Subbarayan K, Friedrich M, Massa C, Biehl K, Al-Ali HK, Wickenhauser C, Seliger B. Biglycan as a mediator of proinflammatory response and target for MDS and sAML therapy. Oncoimmunology 2022; 12:2152998. [PMID: 36531688 PMCID: PMC9757483 DOI: 10.1080/2162402x.2022.2152998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Myelodysplastic syndromes (MDS) and their progression to secondary acute myeloid leukemia (sAML) are associated with an altered protein expression including extracellular matrix (ECM) components thereby promoting an inflammatory environment. Since the role of the proteoglycan biglycan (BGN) as an inflammatory mediator has not yet been investigated in both diseases and might play a role in disease progression, its expression and/or function was determined in cell lines and bone marrow biopsies (BMBs) of MDS and sAML patients and subpopulations of MDS stem cells by Western blot and immunohistochemistry. The bone marrow (BM) microenvironment was analyzed by multispectral imaging, patients' survival by Cox regression. ROC curves were assessed for diagnostic value of BGN. All cell lines showed a strong BGN surface expression in contrast to only marginal expression levels in mononuclear cells and CD34+ cells from healthy donors. In the MDS-L cell line, CD34-CD33+ and CD34+CD33+ blast subpopulations exhibited a differential BGN surface detection. Increased BGN mediated inflammasome activity of CD34-CD33+TLR4+ cells was observed, which was inhibited by direct targeting of BGN or NLRP3. BGN was heterogeneously expressed in BMBs of MDS and sAML, but was not detected in control biopsies. BGN expression in BMBs positively correlated with MUM1+ and CD8+, but negatively with CD33+TLR4+ cell infiltration and was accompanied by a decreased progression-free survival of MDS patients. BGN-mediated inflammasome activation appears to be a crucial mechanism in MDS pathogenesis implicating its use as suitable biomarker and potential therapeutic target. Abbreviations: Ab, antibody; alloSCT, allogenic stem cell transplant; AML, acute myeloid leukemia; BGN, biglycan; BM, bone marrow; BMB, bone marrow biopsy; casp1, caspase 1; CTLA-4, cytotoxic T lymphocyte-associated protein 4; DAMP, danger-associated molecular pattern; ECM, extracellular matrix; FCS, fetal calf serum; GAPDH, glyceraldehyde-3-phosphate dehydrogenase; HD, healthy donor; HSPC, hematopoietic stem and progenitor cell; HSC, hematopoietic stem cell; IFN, interferon; IHC, immunohistochemistry; IL, interleukin; MDS, myelodysplastic syndrome; MPN, myeloproliferative neoplasm; MSI, multispectral imaging; NGS, next-generation sequencing; NLRP3, NLR family pyrin domain containing 3; OS, overall survival; PBMC, peripheral blood mononuclear cell; PD-1, programmed cell death protein 1; PD-L1, programmed death-ligand 1, PFS, progression-free survival; PRR, pattern recognition receptor; SC, stem cell; SLRP, small leucine-rich proteoglycan; TGF, transforming growth factor; TIRAP, toll/interleukin 1 receptor domain-containing adapter protein; TLR, toll-like receptor; Treg, regulatory T cell.
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Affiliation(s)
| | - Marcus Bauer
- Institute of Pathology, Martin Luther University Halle-Wittenberg, Halle (Saale)06112, Germany
| | | | - Michael Friedrich
- Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale)06112, Germany
| | - Chiara Massa
- Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale)06112, Germany
| | - Katharina Biehl
- Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale)06112, Germany
| | - Haifa Kathrin Al-Ali
- Krukenberg Cancer Center Halle, University Hospital Halle, Krukenberg-Krebszentrum, Halle (Saale)06120, Germany
| | - Claudia Wickenhauser
- Institute of Pathology, Martin Luther University Halle-Wittenberg, Halle (Saale)06112, Germany
| | - Barbara Seliger
- Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale)06112, Germany,Department of Good Manufacturing Practice (GMP) Development & Advanced Therapy Medicinal Products (ATMP) Design, Fraunhofer Institute for Cell Therapy and Immunology (IZI), Leipzig04103, Germany,Medical School Theodor Fontane, Institute of Translational Medicine, Brandenburg an der Havel14770, Germany,CONTACT Barbara Seliger Medical Faculty, Martin Luther University Halle-Wittenberg, Halle (Saale), 06112, Germany
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35
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Won K, Kim D, Shin D, Hur J, Lee HK, Heo J, Oh JD. High-throughput sequencing-based metagenomic and transcriptomic analysis of intestine in piglets infected with salmonella. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2022; 64:1144-1172. [PMID: 36812005 PMCID: PMC9890335 DOI: 10.5187/jast.2022.e73] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/17/2022] [Accepted: 09/05/2022] [Indexed: 11/05/2022]
Abstract
Salmonella enterica serovar Typhimurium isolate HJL777 is a virulent bacterial strain in pigs. The high rate of salmonella infection are at high risk of non-typhoidal salmonella gastroenteritis development. Salmonellosis is most common in young pigs. We investigated changes in gut microbiota and biological function in piglets infected with salmonella via analysis of rectal fecal metagenome and intestinal transcriptome using 16S rRNA and RNA sequencing. We identified a decrease in Bacteroides and increase in harmful bacteria such as Spirochaetes and Proteobacteria by microbial community analysis. We predicted that reduction of Bacteroides by salmonella infection causes proliferation of salmonella and harmful bacteria that can cause an intestinal inflammatory response. Functional profiling of microbial communities in piglets with salmonella infection showed increasing lipid metabolism associated with proliferation of harmful bacteria and inflammatory responses. Transcriptome analysis identified 31 differentially expressed genes. Using gene ontology and Innate Immune Database analysis, we identified that BGN, DCN, ZFPM2 and BPI genes were involved in extracellular and immune mechanisms, specifically salmonella adhesion to host cells and inflammatory responses during infection. We confirmed alterations in gut microbiota and biological function during salmonella infection in piglets. Our findings will help prevent disease and improve productivity in the swine industry.
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Affiliation(s)
- KyeongHye Won
- Department of Animal Biotechnology,
College of Agricultural and Life Sciences, Jeonbuk National
University, Jeonju 54896, Korea
| | - Dohyun Kim
- Department of Animal Biotechnology,
College of Agricultural and Life Sciences, Jeonbuk National
University, Jeonju 54896, Korea
| | - Donghyun Shin
- Department of Agricultural Convergence
Technology, Jeonbuk National University, Jeonju 54896,
Korea
| | - Jin Hur
- Department of Veterinary Public Health,
College of Veterinary Medicine, Jeonbuk National University,
Iksan 54596, Korea
| | - Hak-Kyo Lee
- Department of Animal Biotechnology,
College of Agricultural and Life Sciences, Jeonbuk National
University, Jeonju 54896, Korea,Department of Agricultural Convergence
Technology, Jeonbuk National University, Jeonju 54896,
Korea
| | - Jaeyoung Heo
- Department of Animal Biotechnology,
College of Agricultural and Life Sciences, Jeonbuk National
University, Jeonju 54896, Korea,Corresponding author: Jaeyoung Heo,
Department of Animal Biotechnology, College of Agricultural and Life Sciences,
Jeonbuk National University, Jeonju 54896, Korea. Tel: +82-63-270-2549, E-mail:
| | - Jae-Don Oh
- Department of Animal Biotechnology,
College of Agricultural and Life Sciences, Jeonbuk National
University, Jeonju 54896, Korea,Corresponding author: Jae-Don Oh,
Department of Animal Biotechnology, College of Agricultural and Life Sciences,
Jeonbuk National University, Jeonju 54896, Korea. Tel: +82-63-270-5931, E-mail:
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Immunopathogenesis of Sjogren's syndrome: Current state of DAMPs. Semin Arthritis Rheum 2022; 56:152062. [DOI: 10.1016/j.semarthrit.2022.152062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/17/2022] [Accepted: 06/29/2022] [Indexed: 11/22/2022]
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37
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Deb G, Cicala A, Papadas A, Asimakopoulos F. Matrix proteoglycans in tumor inflammation and immunity. Am J Physiol Cell Physiol 2022; 323:C678-C693. [PMID: 35876288 PMCID: PMC9448345 DOI: 10.1152/ajpcell.00023.2022] [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: 01/20/2022] [Revised: 07/11/2022] [Accepted: 07/11/2022] [Indexed: 11/22/2022]
Abstract
Cancer immunoediting progresses through elimination, equilibrium, and escape. Each of these phases is characterized by breaching, remodeling, and rebuilding tissue planes and structural barriers that engage extracellular matrix (ECM) components, in particular matrix proteoglycans. Some of the signals emanating from matrix proteoglycan remodeling are readily co-opted by the growing tumor to sustain an environment of tumor-promoting and immune-suppressive inflammation. Yet other matrix-derived cues can be viewed as part of a homeostatic response by the host, aiming to eliminate the tumor and restore tissue integrity. These latter signals may be harnessed for therapeutic purposes to tip the polarity of the tumor immune milieu toward anticancer immunity. In this review, we attempt to showcase the importance and complexity of matrix proteoglycan signaling in both cancer-restraining and cancer-promoting inflammation. We propose that the era of matrix diagnostics and therapeutics for cancer is fast approaching the clinic.
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Affiliation(s)
- Gauri Deb
- Division of Blood and Marrow Transplantation, Department of Medicine, University of California, San Diego (UCSD), La Jolla, California
- Moores Cancer Center, University of California, San Diego (UCSD), La Jolla, California
| | - Alexander Cicala
- Division of Blood and Marrow Transplantation, Department of Medicine, University of California, San Diego (UCSD), La Jolla, California
- Moores Cancer Center, University of California, San Diego (UCSD), La Jolla, California
| | - Athanasios Papadas
- Division of Blood and Marrow Transplantation, Department of Medicine, University of California, San Diego (UCSD), La Jolla, California
- Moores Cancer Center, University of California, San Diego (UCSD), La Jolla, California
| | - Fotis Asimakopoulos
- Division of Blood and Marrow Transplantation, Department of Medicine, University of California, San Diego (UCSD), La Jolla, California
- Moores Cancer Center, University of California, San Diego (UCSD), La Jolla, California
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38
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Garantziotis S, Savani RC. Proteoglycans in Toll-like receptor responses and innate immunity. Am J Physiol Cell Physiol 2022; 323:C202-C214. [PMID: 35675639 DOI: 10.1152/ajpcell.00088.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The extracellular matrix (ECM) is an active and dynamic feature of tissues that not only provides gross structure but also plays key roles in cellular responses. The ever-changing microenvironment responds dynamically to cellular and external signals, and in turn influences cell fate, tissue development, and response to environmental injury or microbial invasion. It is therefore paramount to understand how the ECM components interact with each other, the environment and cells, and how they mediate their effects. Among the ECM components that have recently garnered increased attention, proteoglycans (PGs) deserve special note. Recent evidence strongly suggests that they play a crucial role both in health maintenance and disease development. In particular, proteoglycans dictate whether homeostasis or cell death will result from a given injury, by triggering and modulating activation of the innate immune system, via a conserved array of receptors that recognize exogenous (infectious) or endogenous (tissue damage) molecular patterns. Innate immune activation by proteoglycans has important implications for the understanding of cell-matrix interactions in health and disease. In this review, we will summarize the current state of knowledge of innate immune signaling by proteoglycans, discuss the implications, and explore future directions to define progress in this area of extracellular matrix biology.
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Affiliation(s)
- Stavros Garantziotis
- Division of Intramural Research, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina
| | - Rashmin C Savani
- Division of Neonatal-Perinatal Medicine, Center for Pulmonary & Vascular Biology, University of Texas Southwestern Medical Center, Dallas, Texas
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Wang J, Zhang F, Xu H, Yang H, Shao M, Xu S, Lyu F. TLR4 aggravates microglial pyroptosis by promoting DDX3X-mediated NLRP3 inflammasome activation via JAK2/STAT1 pathway after spinal cord injury. Clin Transl Med 2022; 12:e894. [PMID: 35692100 PMCID: PMC9189419 DOI: 10.1002/ctm2.894] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 04/30/2022] [Accepted: 05/09/2022] [Indexed: 12/17/2022] Open
Abstract
Background Toll‐like receptor 4 (TLR4) participates in the initiation of neuroinflammation in various neurological diseases, including central nervous system injuries. NLR family pyrin domain containing 3 (NLRP3) inflammasome‐mediated microglial pyroptosis is crucial for the inflammatory response during secondary spinal cord injury (SCI). However, the underlying mechanism by which TLR4 regulates NLRP3 inflammasome activation and microglial pyroptosis after SCI remains uncertain. Methods We established an in vivo mouse model of SCI using TLR4‐knockout (TLR4‐KO) and wild‐type (WT) mice. The levels of pyroptosis, tissue damage and neurological function recovery were evaluated in the three groups (Sham, SCI, SCI‐TLR4‐KO). To identify differentially expressed proteins, tandem mass tag (TMT)‐based proteomics was conducted using spinal cord tissue between TLR4‐KO and WT mice after SCI. For our in vitro model, mouse microglial BV2 cells were exposed to lipopolysaccharides (1 µg/ml, 8 h) and adenosine triphosphate (ATP) (5 mM, 2 h) to induce pyroptosis. A series of molecular biological experiments, including Western blot (WB), real‐time quantitative polymerase chain reaction (RT‐qPCR), enzyme‐linked immunosorbent assay (ELISA), immunofluorescence (IF), immunohistochemical (IHC), chromatin immunoprecipitation (ChIP), Dual‐Luciferase Reporter assay (DLA) and co‐immunoprecipitation (Co‐IP), were performed to explore the specific mechanism of microglial pyroptosis in vivo and in vitro. Results Our results indicated that TLR4 promoted the expression of dead‐box helicase 3 X‐linked (DDX3X), which mediated NLRP3 inflammasome activation and microglial pyroptosis after SCI. Further analysis revealed that TLR4 upregulated the DDX3X/NLRP3 axis by activating the JAK2/STAT1 signalling pathway, and importantly, STAT1 was identified as a transcription factor promoting DDX3X expression. In addition, we found that biglycan was increased after SCI and interacted with TLR4 to jointly regulate microglial pyroptosis through the JAK2/STAT1/DDX3X/NLRP3 axis after SCI. Conclusion Our study preliminarily identified a novel mechanism by which TLR4 regulates NLRP3 inflammasome‐mediated microglial pyroptosis in response to SCI—providing a novel and promising therapeutic target for SCI.
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Affiliation(s)
- Jin Wang
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, P. R. China
| | - Fan Zhang
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, P. R. China
| | - Haocheng Xu
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, P. R. China
| | - Haiyuan Yang
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, P. R. China
| | - Minghao Shao
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, P. R. China
| | - Shun Xu
- Department of Orthopedics, Shanghai Fifth People's Hospital, Fudan University, Shanghai, P. R. China
| | - Feizhou Lyu
- Department of Orthopedics, Huashan Hospital, Fudan University, Shanghai, P. R. China.,Department of Orthopedics, Shanghai Fifth People's Hospital, Fudan University, Shanghai, P. R. China
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40
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Gao R, Tang J, Dong Y, Ming B, Yu Z, Zhong J, Dong L. The Aberrant Levels of Decorin Induce Damages of Human Salivary Gland Epithelial Cells and Polarization of Macrophages. Mod Rheumatol 2022; 33:557-565. [PMID: 35438773 DOI: 10.1093/mr/roac034] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 03/31/2022] [Accepted: 04/14/2022] [Indexed: 11/13/2022]
Abstract
OBJECTIVE This study aimed to preliminarily address the levels of decorin (DCN, a critical component of extracellular matrix), and its potential roles in primary sjögren's syndrome (pSS). METHODS DCN levels were determined in the salivary glands of experimental SS (ESS) mice and pSS patients by RNA sequencing, bioinformatics analysis, or immunohistochemical (IHC) staining. Its correlation with interested genes and co-localization with a putative receptor was studied in pSS patients. In addition, its potential roles on salivary gland epithelium and macrophages were tested by exogenous administration to corresponding cell lines, followed by the evaluation of apoptosis using flow cytometry or cytokines expression using quantitative real time PCR. RESULTS Our data revealed a significant elevation of DCN in the salivary glands of experimental SS (ESS) mice model and pSS patients. In addition, the bioinformatics analysis of DCN in GSE40611 (RNA-seq, parotid glands) dataset displayed an elevation of DCN level in the parotid glands of pSS patients that positively correlated with several chemokines (CXCL13, CXCL9, CCL20), IL-1ß, and caspase3 but negatively correlated with the proliferation relative gene MKI67. The stimulatory effects of DCN on the salivary gland epithelial cells (A253 cell line) and macrophages have been determined as they are considered active participants in the progression of SS. The data showed that DCN induced apoptosis of A253 cells and polarization of macrophages toward the M1 phenotype, characterized by the expression of pro-inflammatory cytokines. CONCLUSION Our study provided preliminary evidence to understand the clinical significance of DCN in pSS and broadened our horizons in understanding the mechanism of pSS.
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Affiliation(s)
- Rongfen Gao
- Department of Rheumatology and Immunolog, Tongji Hospitaly, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jungen Tang
- Department of Rheumatology and Immunolog, Tongji Hospitaly, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuanji Dong
- Department of Rheumatology and Immunolog, Tongji Hospitaly, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bingxia Ming
- Department of Rheumatology and Immunolog, Tongji Hospitaly, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhihua Yu
- Department of Pathology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jixin Zhong
- Department of Rheumatology and Immunolog, Tongji Hospitaly, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lingli Dong
- Department of Rheumatology and Immunolog, Tongji Hospitaly, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Xu X, Ha P, Yen E, Li C, Zheng Z. Small Leucine-Rich Proteoglycans in Tendon Wound Healing. Adv Wound Care (New Rochelle) 2022; 11:202-214. [PMID: 34978952 DOI: 10.1089/wound.2021.0069] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Significance: Tendon injury possesses a high morbidity rate and is difficult to achieve a satisfying prognosis with currently available treatment strategies. Current approaches used for tendon healing always lead to the formation of fibrovascular scar tissue, which significantly compromises the biomechanics of the healed tendon. Moreover, the related functional deficiency deteriorates over time with an increased injury recurrence risk. Small leucine-rich proteoglycans (SLRPs) link and interact with collagen fibrils to regulate tendon structure and biomechanics, which can provide a new and promising method in the field of tendon injury management. Recent Advances: The effect of SLRPs on tendon development has been extensively investigated. SLRP deficiency impairs tendon collagen fibril structure and biomechanic properties, while administration of SLRPs generally benefits tendon wound healing and regains better mechanical properties. Critical Issues: Current knowledge on the role of SLRPs in tendon development and regeneration mostly comes from uninjured knockout mice, and mainly focuses on the morphology description of collagen fibril profile and mechanical properties. Little is known about the regulatory mechanism on the molecular level. Future Directions: This article reviews the current knowledge in this highly translational topic and provides an evidence-based conclusion, thereby encouraging in-depth investigations of SLRPs in tendons and the development of SLRP-based treatments for desired tendon healing.
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Affiliation(s)
- Xue Xu
- Department of Oral and Maxillofacial Plastic and Traumatic Surgery, Beijing Stomatological Hospital of Capital Medical University, Beijing, People's Republic of China
- Division of Growth and Development, School of Dentistry, University of California, Los Angeles, Los Angeles, California, USA
| | - Pin Ha
- Division of Growth and Development, School of Dentistry, University of California, Los Angeles, Los Angeles, California, USA
| | - Emily Yen
- Arcadia High School, Arcadia, California, USA
| | - Chenshuang Li
- Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Zhong Zheng
- Division of Growth and Development, School of Dentistry, University of California, Los Angeles, Los Angeles, California, USA
- Division of Plastic and Reconstructive Surgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
- Orthodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, California, USA
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Jin J, Zhou TJ, Ren GL, Cai L, Meng XM. Novel insights into NOD-like receptors in renal diseases. Acta Pharmacol Sin 2022; 43:2789-2806. [PMID: 35365780 PMCID: PMC8972670 DOI: 10.1038/s41401-022-00886-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 02/02/2022] [Accepted: 02/07/2022] [Indexed: 11/09/2022] Open
Abstract
Nucleotide-binding oligomerization domain-like receptors (NLRs), including NLRAs, NLRBs (also known as NAIPs), NLRCs, and NLRPs, are a major subfamily of pattern recognition receptors (PRRs). Owing to a recent surge in research, NLRs have gained considerable attention due to their involvement in mediating the innate immune response and perpetuating inflammatory pathways, which is a central phenomenon in the pathogenesis of multiple diseases, including renal diseases. NLRs are expressed in different renal tissues during pathological conditions, which suggest that these receptors play roles in acute kidney injury, obstructive nephropathy, diabetic nephropathy, IgA nephropathy, lupus nephritis, crystal nephropathy, uric acid nephropathy, and renal cell carcinoma, among others. This review summarises recent progress on the functions of NLRs and their mechanisms in the pathophysiological processes of different types of renal diseases to help us better understand the role of NLRs in the kidney and provide a theoretical basis for NLR-targeted therapy for renal diseases.
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Markwell SM, Ross JL, Olson CL, Brat DJ. Necrotic reshaping of the glioma microenvironment drives disease progression. Acta Neuropathol 2022; 143:291-310. [PMID: 35039931 DOI: 10.1007/s00401-021-02401-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 12/13/2022]
Abstract
Glioblastoma is the most common primary brain tumor and has a dismal prognosis. The development of central necrosis represents a tipping point in the evolution of these tumors that foreshadows aggressive expansion, swiftly leading to mortality. The onset of necrosis, severe hypoxia and associated radial glioma expansion correlates with dramatic tumor microenvironment (TME) alterations that accelerate tumor growth. In the past, most have concluded that hypoxia and necrosis must arise due to "cancer outgrowing its blood supply" when rapid tumor growth outpaces metabolic supply, leading to diffusion-limited hypoxia. However, growing evidence suggests that microscopic intravascular thrombosis driven by the neoplastic overexpression of pro-coagulants attenuates glioma blood supply (perfusion-limited hypoxia), leading to TME restructuring that includes breakdown of the blood-brain barrier, immunosuppressive immune cell accumulation, microvascular hyperproliferation, glioma stem cell enrichment and tumor cell migration outward. Cumulatively, these adaptations result in rapid tumor expansion, resistance to therapeutic interventions and clinical progression. To inform future translational investigations, the complex interplay among environmental cues and myriad cell types that contribute to this aggressive phenotype requires better understanding. This review focuses on contributions from intratumoral thrombosis, the effects of hypoxia and necrosis, the adaptive and innate immune responses, and the current state of targeted therapeutic interventions.
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Affiliation(s)
- Steven M Markwell
- Department of Pathology, Northwestern Medicine Malnati Brain Tumor Institute of the Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave. Ward 3-140, Chicago, IL, USA
| | - James L Ross
- Department of Microbiology and Immunology, Emory University, Atlanta, GA, USA
| | - Cheryl L Olson
- Department of Pathology, Northwestern Medicine Malnati Brain Tumor Institute of the Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave. Ward 3-140, Chicago, IL, USA
| | - Daniel J Brat
- Department of Pathology, Northwestern Medicine Malnati Brain Tumor Institute of the Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, 303 E. Chicago Ave. Ward 3-140, Chicago, IL, USA.
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Xia MD, Yu RR, Chen DM. Identification of Hub Biomarkers and Immune-Related Pathways Participating in the Progression of Antineutrophil Cytoplasmic Antibody-Associated Glomerulonephritis. Front Immunol 2022; 12:809325. [PMID: 35069594 PMCID: PMC8766858 DOI: 10.3389/fimmu.2021.809325] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 12/13/2021] [Indexed: 12/24/2022] Open
Abstract
Background Antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is a systemic autoimmune disease that generally induces the progression of rapidly progressive glomerulonephritis (GN). The purpose of this study was to identify key biomarkers and immune-related pathways involved in the progression of ANCA-associated GN (ANCA-GN) and their relationship with immune cell infiltration. Methods Gene microarray data were downloaded from the Gene Expression Omnibus (GEO). Hub markers for ANCA-GN were mined based on differential expression analysis, weighted gene co-expression network analysis (WGCNA) and lasso regression, followed by Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Set Enrichment Analysis (GSEA) of the differential genes. The infiltration levels of 28 immune cells in the expression profile and their relationship to hub gene markers were analysed using single-sample GSEA (ssGSEA). In addition, the accuracy of the hub markers in diagnosing ANCA-GN was subsequently evaluated using the receiver operating characteristic curve (ROC). Results A total of 651 differential genes were screened. Twelve co-expression modules were obtained via WGCNA; of which, one hub module (black module) had the highest correlation with ANCA-GN. A total of 66 intersecting genes were acquired by combining differential genes. Five hub genes were subsequently obtained by lasso analysis as potential biomarkers for ANCA-GN. The immune infiltration results revealed the most significant relationship among monocytes, CD4+ T cells and CD8+ T cells. ROC curve analysis demonstrated a prime diagnostic value of the five hub genes. According to the functional enrichment analysis of the differential genes, hub genes were mainly enhanced in immune- and inflammation-related pathways. Conclusion B cells and monocytes were closely associated with the pathogenesis of ANCA-GN. Hub genes (CYP3A5, SLC12A3, BGN, TAPBP and TMEM184B) may be involved in the progression of ANCA-GN through immune-related signal pathways.
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Affiliation(s)
- Meng-Di Xia
- Department of Nephrology, The Second Clinical Medical Institution of North Sichuan Medical College (Nanchong Central Hospital) and Nanchong Key Laboratory of Basic Science & Clinical Research on Chronic Kidney Disease, Nanchong, China.,Department of Nephrology and Medical Intensive Care, Charité - Universtitätsmedizin Berlin, Cooperate Member of Freie Universität and Humboldt Universität, Hindenburgdamm, Berlin, Germany
| | - Rui-Ran Yu
- Department of Oncology, Anqing First People's Hospital of Anhui Medical University, Anqing, China
| | - Dong-Ming Chen
- Department of Neurosurgery, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, China.,Charité - Universtitätsmedizin Berlin, Cooperate Member of Freie Universität and Humboldt Universität, Berlin, Germany
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Xia GQ, Cai JN, Wu X, Fang Q, Zhao N, Lv XW. The mechanism by which ATP regulates alcoholic steatohepatitis through P2X4 and CD39. Eur J Pharmacol 2022; 916:174729. [PMID: 34973190 DOI: 10.1016/j.ejphar.2021.174729] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 12/22/2021] [Accepted: 12/24/2021] [Indexed: 12/12/2022]
Abstract
Alcoholic liver disease caused by chronic excessive drinking has become one of the most common types of liver disease. Alcohol-induced inflammatory immune responses play a central role in the development of alcohol-associated steatohepatitis. The content and expression of ATP and P2X4 in the livers of alcoholic steatohepatitis mice are significantly increased. The content of ATP increased by 20 percent and the expression of P2X4 receptor protein was 1.3 times higher than that in the livers of normal mice. Treatment with 5-BDBD, a P2X4 receptor-specific inhibitor, significantly reduced alcohol-induced liver inflammation and lipid deposition. In RAW264.7 cell experiments, 5-BDBD inhibited the expression of P2X4 and alleviated alcohol-induced inflammation, while the CD39-specific inhibitor POM-1 reduced extracellular ATP degradation and promoted the expression of P2X4, thereby exacerbating inflammation. After treatment with 5-BDBD, P2X4 receptor protein expression decreased by 0.2 times and after treatment with POM-1, P2X4 receptor protein expression increased by 0.1 times compared to the alcohol-stimulated group. In addition, inhibition of P2X4 expression in RAW264.7 cells reduced calcium influx in RAW264.7 cells. P2X4 may induce the activation of NLRP3 inflammasomes by mediating calcium influx, thus exacerbating the inflammatory response, and inhibition of P2X4 expression can effectively block this process. Conclusion: These results suggest that the ATP-P2X4 signaling pathway promotes the inflammatory response in alcoholic steatohepatitis and that CD39 may play a protective role in regulating P2X4 expression by hydrolyzing ATP. In conclusion, the CD39 and ATP-P2X4 signaling pathways may be potential therapeutic targets for alcoholic steatohepatitis.
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Affiliation(s)
- Guo-Qing Xia
- Institute for Liver Diseases of Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China
| | - Jun-Nan Cai
- Institute for Liver Diseases of Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China
| | - Xue Wu
- Institute for Liver Diseases of Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China
| | - Qian Fang
- Institute for Liver Diseases of Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China
| | - Ning Zhao
- Institute for Liver Diseases of Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China
| | - Xiong-Wen Lv
- Institute for Liver Diseases of Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China.
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Aranda-Rivera AK, Srivastava A, Cruz-Gregorio A, Pedraza-Chaverri J, Mulay SR, Scholze A. Involvement of Inflammasome Components in Kidney Disease. Antioxidants (Basel) 2022; 11:246. [PMID: 35204131 PMCID: PMC8868482 DOI: 10.3390/antiox11020246] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/21/2022] [Accepted: 01/22/2022] [Indexed: 02/01/2023] Open
Abstract
Inflammasomes are multiprotein complexes with an important role in the innate immune response. Canonical activation of inflammasomes results in caspase-1 activation and maturation of cytokines interleukin-1β and -18. These cytokines can elicit their effects through receptor activation, both locally within a certain tissue and systemically. Animal models of kidney diseases have shown inflammasome involvement in inflammation, pyroptosis and fibrosis. In particular, the inflammasome component nucleotide-binding domain-like receptor family pyrin domain containing 3 (NLRP3) and related canonical mechanisms have been investigated. However, it has become increasingly clear that other inflammasome components are also of importance in kidney disease. Moreover, it is becoming obvious that the range of molecular interaction partners of inflammasome components in kidney diseases is wide. This review provides insights into these current areas of research, with special emphasis on the interaction of inflammasome components and redox signalling, endoplasmic reticulum stress, and mitochondrial function. We present our findings separately for acute kidney injury and chronic kidney disease. As we strictly divided the results into preclinical and clinical data, this review enables comparison of results from those complementary research specialities. However, it also reveals that knowledge gaps exist, especially in clinical acute kidney injury inflammasome research. Furthermore, patient comorbidities and treatments seem important drivers of inflammasome component alterations in human kidney disease.
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Affiliation(s)
- Ana Karina Aranda-Rivera
- Laboratory F-315, Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico; (A.K.A.-R.); (A.C.-G.); (J.P.-C.)
| | - Anjali Srivastava
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow 226031, India; (A.S.); (S.R.M.)
| | - Alfredo Cruz-Gregorio
- Laboratory F-315, Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico; (A.K.A.-R.); (A.C.-G.); (J.P.-C.)
| | - José Pedraza-Chaverri
- Laboratory F-315, Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico; (A.K.A.-R.); (A.C.-G.); (J.P.-C.)
| | - Shrikant R. Mulay
- Division of Pharmacology, CSIR-Central Drug Research Institute, Lucknow 226031, India; (A.S.); (S.R.M.)
| | - Alexandra Scholze
- Department of Nephrology, Odense University Hospital, Odense, Denmark, and Institute of Clinical Research, University of Southern Denmark, 5000 Odense C, Denmark
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PGC-1α inhibits the NLRP3 inflammasome via preserving mitochondrial viability to protect kidney fibrosis. Cell Death Dis 2022; 13:31. [PMID: 35013155 PMCID: PMC8748677 DOI: 10.1038/s41419-021-04480-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 12/03/2021] [Accepted: 12/14/2021] [Indexed: 12/11/2022]
Abstract
The NLRP3 inflammasome is activated by mitochondrial damage and contributes to kidney fibrosis. However, it is unknown whether PGC-1α, a key mitochondrial biogenesis regulator, modulates NLRP3 inflammasome in kidney injury. Primary renal tubular epithelial cells (RTECs) were isolated from C57BL/6 mice. The NLRP3 inflammasome, mitochondrial dynamics and morphology, oxidative stress, and cell injury markers were examined in RTECs treated by TGF-β1 with or without Ppargc1a plasmid, PGC-1α activator (metformin), and siPGC-1α. In vivo, adenine-fed and unilateral ureteral obstruction (UUO) mice were treated with metformin. In vitro, TGF-β1 treatment to RTECs suppressed the expressions of PGC-1α and mitochondrial dynamic-related genes. The NLRP3 inflammasome was also activated and the expression of fibrotic and cell injury markers was increased. PGC-1α induction with the plasmid and metformin improved mitochondrial dynamics and morphology and attenuated the NLRP3 inflammasome and cell injury. The opposite changes were observed by siPGC-1α. The oxidative stress levels, which are inducers of the NLRP3 inflammasome, were increased and the expression of TNFAIP3, a negative regulator of NLRP3 inflammasome regulated by PGC-1α, was decreased by TGF-β1 and siPGC-1α. However, PGC-1α restoration reversed these alterations. In vivo, adenine-fed and UUO mice models showed suppression of PGC-1α and TNFAIP3 and dysregulated mitochondrial dynamics. Moreover, the activation of oxidative stress and NLRP3 inflammasome, and kidney fibrosis were increased in these mice. However, these changes were significantly reversed by metformin. This study demonstrated that kidney injury was ameliorated by PGC-1α-induced inactivation of the NLRP3 inflammasome via modulation of mitochondrial viability and dynamics.
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Diehl V, Huber LS, Trebicka J, Wygrecka M, Iozzo RV, Schaefer L. The Role of Decorin and Biglycan Signaling in Tumorigenesis. Front Oncol 2021; 11:801801. [PMID: 34917515 PMCID: PMC8668865 DOI: 10.3389/fonc.2021.801801] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 11/09/2021] [Indexed: 12/12/2022] Open
Abstract
The complex and adaptive nature of malignant neoplasm constitute a major challenge for the development of effective anti-oncogenic therapies. Emerging evidence has uncovered the pivotal functions exerted by the small leucine-rich proteoglycans, decorin and biglycan, in affecting tumor growth and progression. In their soluble forms, decorin and biglycan act as powerful signaling molecules. By receptor-mediated signal transduction, both proteoglycans modulate key processes vital for tumor initiation and progression, such as autophagy, inflammation, cell-cycle, apoptosis, and angiogenesis. Despite of their structural homology, these two proteoglycans interact with distinct cell surface receptors and thus modulate distinct signaling pathways that ultimately affect cancer development. In this review, we summarize growing evidence for the complex roles of decorin and biglycan signaling in tumor biology and address potential novel therapeutic implications.
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Affiliation(s)
- Valentina Diehl
- Institute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany
| | - Lisa Sophie Huber
- Institute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany
| | - Jonel Trebicka
- Department of Internal Medicine I, Goethe University, Frankfurt, Germany
| | - Malgorzata Wygrecka
- Center for Infection and Genomics of the Lung, Member of the German Center for Lung Research, University of Giessen and Marburg Lung Center, Giessen, Germany
| | - Renato V. Iozzo
- Department of Pathology, Anatomy and Cell Biology and the Translational Cellular Oncology Program, Sidney Kimmel Cancer Center, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, United States
| | - Liliana Schaefer
- Institute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany
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Jandl K, Mutgan AC, Eller K, Schaefer L, Kwapiszewska G. The basement membrane in the cross-roads between the lung and kidney. Matrix Biol 2021; 105:31-52. [PMID: 34839001 DOI: 10.1016/j.matbio.2021.11.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 11/05/2021] [Accepted: 11/18/2021] [Indexed: 12/23/2022]
Abstract
The basement membrane (BM) is a specialized layer of extracellular matrix components that plays a central role in maintaining lung and kidney functions. Although the composition of the BM is usually tissue specific, the lung and the kidney preferentially use similar BM components. Unsurprisingly, diseases with BM defects often have severe pulmonary or renal manifestations, sometimes both. Excessive remodeling of the BM, which is a hallmark of both inflammatory and fibrosing diseases in the lung and the kidney, can lead to the release of BM-derived matrikines, proteolytic fragments with distinct biological functions. These matrikines can then influence disease activity at the site of liberation. However, they are also released to the circulation, where they can directly affect the vascular endothelium or target other organs, leading to extrapulmonary or extrarenal manifestations. In this review, we will summarize the current knowledge of the composition and function of the BM and its matrikines in health and disease, both in the lung and in the kidney. By comparison, we will highlight, why the BM and its matrikines may be central in establishing a renal-pulmonary interaction axis.
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Affiliation(s)
- Katharina Jandl
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria; Otto Loewi Research Center, Department of Pharmacology, Medical University of Graz, Graz, Austria
| | - Ayse Ceren Mutgan
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria; Otto Loewi Research Center, Department of Physiology, Medical University of Graz, Graz, Austria
| | - Kathrin Eller
- Clinical Division of Nephrology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Liliana Schaefer
- Institute of Pharmacology and Toxicology, Goethe University, Frankfurt, Germany
| | - Grazyna Kwapiszewska
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria; Otto Loewi Research Center, Department of Physiology, Medical University of Graz, Graz, Austria; Institute for Lung Health (ILH), Giessen, Germany..
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The Role of NLRP3 Inflammasome in Lupus Nephritis. Int J Mol Sci 2021; 22:ijms222212476. [PMID: 34830358 PMCID: PMC8625721 DOI: 10.3390/ijms222212476] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/15/2021] [Accepted: 06/24/2021] [Indexed: 02/06/2023] Open
Abstract
Lupus nephritis (LN) is the most frequent and severe of systemic lupus erythematosus (SLE) clinical manifestations and contributes to the increase of morbidity and mortality of patients due to chronic kidney disease. The NLRP3 (NLR pyrin domain containing 3) is a member of the NLR (NOD-like receptors), and its activation results in the production of pro-inflammatory cytokines, which can contribute to the pathogenesis of LN. In this review manuscript, we approach the relation between the NLRP3 inflammasome, SLE, and LN, highlighting the influence of genetic susceptibility of NLRP3 polymorphisms in the disease; the main functional studies using cellular and animal models of NLRP3 activation; and finally, some mechanisms of NLRP3 inhibition for the development of possible therapeutic drugs for LN.
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