1
|
Weaver DF. Endogenous Antimicrobial-Immunomodulatory Molecules: Networking Biomolecules of Innate Immunity. Chembiochem 2024; 25:e202400089. [PMID: 38658319 DOI: 10.1002/cbic.202400089] [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: 01/30/2024] [Revised: 04/21/2024] [Accepted: 04/24/2024] [Indexed: 04/26/2024]
Abstract
Endogenous antimicrobial-immunomodulatory molecules (EAIMs) are essential to immune-mediated human health and evolution. Conventionally, antimicrobial peptides (AMPs) have been regarded as the dominant endogenous antimicrobial molecule; however, AMPs are not sufficient to account for the full spectrum of antimicrobial-immunomodulatory duality occurring within the human body. The threat posed by pathogenic microbes is pervasive with the capacity for widespread impact across many organ systems and multiple biochemical pathways; accordingly, the host needs the capacity to react with an equally diverse response. This can be attained by having EAIMs that traverse the full range of molecular size (small to large molecules) and structural diversity (including molecules other than peptides). This review identifies multiple molecules (peptide/protein, lipid, carbohydrate, nucleic acid, small organic molecule, and metallic cation) as EAIMs and discusses the possibility of cooperative, additive effects amongst the various EAIM classes during the host response to a microbial assault. This comprehensive consideration of the full molecular diversity of EAIMs enables the conclusion that EAIMs constitute a previously uncatalogued structurally diverse and collectively underappreciated immuno-active group of integrated molecular responders within the innate immune system's first line of defence.
Collapse
Affiliation(s)
- Donald F Weaver
- Departments of Chemistry and Medicine, University of Toronto, Krembil Research Institute, University Health Network, Toronto, ON, M5Y 0S8, Canada
| |
Collapse
|
2
|
Caloian CS, Ciurea A, Negucioiu M, Roman A, Micu IC, Picoș A, Soancă A. Systemic Impact of Subgingival Infection Control in Periodontitis Patients with Cardiovascular Disease: A Narrative Review. Antibiotics (Basel) 2024; 13:359. [PMID: 38667035 PMCID: PMC11047730 DOI: 10.3390/antibiotics13040359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/10/2024] [Accepted: 04/12/2024] [Indexed: 04/29/2024] Open
Abstract
INTRODUCTION Periodontitis, an infectious inflammatory condition, is a key contributor to sustained systemic inflammation, intricately linked to atherosclerotic cardiovascular disease (CVD), the leading cause of death in developed nations. Treating periodontitis with subgingival mechanical instrumentation with or without adjunctive antimicrobials reduces the microbial burden and local inflammation, while also potentially bringing systemic benefits for patients with both periodontitis and CVD. This review examines systemic effects of subgingival instrumentation with or without antimicrobial products in individuals with periodontitis and CVD, and explores intricate pathogenetic interactions between periodontitis and CVD. MATERIAL AND METHODS English-language databases (PubMed MEDLINE and Cochrane Library) were searched for studies assessing the effects of nonsurgical periodontal therapies in periodontitis patients with or without CVD. RESULTS While the ability of periodontal therapy to reduce mortality- and morbidity-related outcomes in CVD patients with periodontitis remains uncertain, some studies indicate a decrease in inflammatory markers and blood cell counts. Subgingival mechanical instrumentation delivered over multiple short sessions carries lower risks of adverse effects, particularly systemic inflammation, compared to the full-mouth delivery, making it a preferable option for CVD patients. CONCLUSIONS Subgingival mechanical instrumentation, ideally conducted in a quadrant-based therapeutic approach, to decontaminate periodontal pockets has the potential to reduce both local and systemic inflammation with minimal adverse effects in patients suffering from periodontitis and concurrent CVD.
Collapse
Affiliation(s)
- Carmen Silvia Caloian
- Department of Periodontology, Faculty of Dental Medicine, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Victor Babeș St., No. 15, 400012 Cluj-Napoca, Romania; (C.S.C.); (A.C.); (I.C.M.); (A.S.)
| | - Andreea Ciurea
- Department of Periodontology, Faculty of Dental Medicine, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Victor Babeș St., No. 15, 400012 Cluj-Napoca, Romania; (C.S.C.); (A.C.); (I.C.M.); (A.S.)
| | - Marius Negucioiu
- Department of Prosthodontics, Faculty of Dental Medicine, Iuliu Hatieganu University of Medicine and Pharmacy Cluj-Napoca, Clinicilor St., No. 32, 400006 Cluj-Napoca, Romania;
| | - Alexandra Roman
- Department of Periodontology, Faculty of Dental Medicine, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Victor Babeș St., No. 15, 400012 Cluj-Napoca, Romania; (C.S.C.); (A.C.); (I.C.M.); (A.S.)
| | - Iulia Cristina Micu
- Department of Periodontology, Faculty of Dental Medicine, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Victor Babeș St., No. 15, 400012 Cluj-Napoca, Romania; (C.S.C.); (A.C.); (I.C.M.); (A.S.)
| | - Andrei Picoș
- Department of Prevention in Dental Medicine, Faculty of Dental Medicine, Iuliu Hatieganu University of Medicine and Pharmacy Cluj-Napoca, Avram Iancu St., No. 31, 400083 Cluj-Napoca, Romania
| | - Andrada Soancă
- Department of Periodontology, Faculty of Dental Medicine, Iuliu Hațieganu University of Medicine and Pharmacy Cluj-Napoca, Victor Babeș St., No. 15, 400012 Cluj-Napoca, Romania; (C.S.C.); (A.C.); (I.C.M.); (A.S.)
| |
Collapse
|
3
|
Berkel Kasikci M, Guilois-Dubois S, Billet K, Jardin J, Guyot S, Morzel M. Interactions between Salivary Proteins and Apple Polyphenols and the Fate of Complexes during Gastric Digestion. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 38603459 DOI: 10.1021/acs.jafc.4c00468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Beneficial polyphenols in apples can reach the stomach as complexes formed with salivary proteins. The present study aimed at documenting the interactions between salivary proteins and cider apple polyphenols and the fate of complexes during gastric digestion. A polyphenolic extract was mixed with human saliva, and interactions were characterized by analyzing proteins and polyphenols in the insoluble and soluble fractions of the mixtures, before and after in vitro gastric digestion. Results confirmed that proline-rich proteins can efficiently precipitate polyphenols and suggested that two zinc-binding proteins can also form insoluble complexes with polyphenols. The classes of polyphenols involved in such complexes depended on the polyphenol-to-protein ratio. In vitro gastric digestion led to extensive proteolysis of salivary proteins, and we formulate the hypothesis that the resulting peptides can interact with and precipitate some procyanidins. Saliva may therefore partly modulate the bioaccessibility of at least procyanidins in the gastric compartment.
Collapse
Affiliation(s)
- Müzeyyen Berkel Kasikci
- INRAE, Institut Agro, STLO, 35042 Rennes, France
- Department of Food Engineering, Manisa Celal Bayar University, 45140 Manisa, Turkey
| | | | | | | | | | | |
Collapse
|
4
|
Khan H, Shaikh F, Syed MH, Mamdani M, Saposnik G, Qadura M. Current Biomarkers for Carotid Artery Stenosis: A Comprehensive Review of the Literature. Metabolites 2023; 13:919. [PMID: 37623863 PMCID: PMC10456624 DOI: 10.3390/metabo13080919] [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: 06/30/2023] [Revised: 07/28/2023] [Accepted: 08/03/2023] [Indexed: 08/26/2023] Open
Abstract
Carotid artery stenosis (CAS), an atherosclerotic disease of the carotid artery, is one of the leading causes of transient ischemic attacks (TIA) and cerebrovascular attacks (CVA). The atherogenic process of CAS affects a wide range of physiological processes, such as inflammation, endothelial cell function, smooth muscle cell migration and many more. The current gold-standard test for CAS is Doppler ultrasound; however, there is yet to be determined a strong, clinically validated biomarker in the blood that can diagnose patients with CAS and/or predict adverse outcomes in such patients. In this comprehensive literature review, we evaluated all of the current research on plasma and serum proteins that are current contenders for biomarkers for CAS. In this literature review, 36 proteins found as potential biomarkers for CAS were categorized in to the following nine categories based on protein function: (1) Inflammation and Immunity, (2) Lipid Metabolism, (3) Haemostasis, (4) Cardiovascular Markers, (5) Markers of Kidney Function, (6) Bone Health, (7) Cellular Structure, (8) Growth Factors, and (9) Hormones. This literature review is the most up-to-date and current comprehensive review of research on biomarkers of CAS, and the only review that demonstrated the several pathways that contribute to the initiation and progression of the disease. With this review, future studies can determine if any new markers, or a panel of the proteins explored in this study, may be contenders as diagnostic or prognostic markers for CAS.
Collapse
Affiliation(s)
- Hamzah Khan
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada; (H.K.); (F.S.); (M.H.S.)
- Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Unity Health Toronto, Toronto, ON M5B 1W8, Canada; (M.M.); (G.S.)
| | - Farah Shaikh
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada; (H.K.); (F.S.); (M.H.S.)
- Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Unity Health Toronto, Toronto, ON M5B 1W8, Canada; (M.M.); (G.S.)
| | - Muzammil H. Syed
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada; (H.K.); (F.S.); (M.H.S.)
- Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Unity Health Toronto, Toronto, ON M5B 1W8, Canada; (M.M.); (G.S.)
| | - Muhammad Mamdani
- Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Unity Health Toronto, Toronto, ON M5B 1W8, Canada; (M.M.); (G.S.)
- Temerty Centre for Artificial Intelligence Research and Education in Medicine (T-CAIREM), University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Gustavo Saposnik
- Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Unity Health Toronto, Toronto, ON M5B 1W8, Canada; (M.M.); (G.S.)
- Division of Neurology, Department of Medicine, St. Michael’s Hospital, University of Toronto, 55 Queen St E, Toronto, ON M5C 1R6, Canada
| | - Mohammad Qadura
- Division of Vascular Surgery, St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada; (H.K.); (F.S.); (M.H.S.)
- Division of Neurology, Department of Medicine, St. Michael’s Hospital, University of Toronto, 55 Queen St E, Toronto, ON M5C 1R6, Canada
- Department of Surgery, University of Toronto, Toronto, ON M5T 1P5, Canada
| |
Collapse
|
5
|
Liang H, Li J, Zhang K. Pathogenic role of S100 proteins in psoriasis. Front Immunol 2023; 14:1191645. [PMID: 37346040 PMCID: PMC10279876 DOI: 10.3389/fimmu.2023.1191645] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 05/22/2023] [Indexed: 06/23/2023] Open
Abstract
Psoriasis is a chronic inflammatory skin disease. The histopathological features of psoriasis include excessive proliferation of keratinocytes and infiltration of immune cells. The S100 proteins are a group of EF-hand Ca2+-binding proteins, including S100A2, -A7, -A8/A9, -A12, -A15, which expression levels are markedly upregulated in psoriatic skin. These proteins exert numerous functions such as serving as intracellular Ca2+ sensors, transduction of Ca2+ signaling, response to extracellular stimuli, energy metabolism, and regulating cell proliferation and apoptosis. Evidence shows a crucial role of S100 proteins in the development and progress of inflammatory diseases, including psoriasis. S100 proteins can possibly be used as potential therapeutic target and diagnostic biomarkers. This review focuses on the pathogenic role of S100 proteins in psoriasis.
Collapse
Affiliation(s)
- Huifang Liang
- ShanXi Key Laboratory of Stem Cells for Immunological Dermatosis, Institute of Dermatology, Taiyuan City Center Hospital, Taiyuan, China
- State Key Breeding Laboratory of Stem Cells for Immunological Dermatosis, Institute of Dermatology, Taiyuan City Center Hospital, Taiyuan, China
| | - Junqin Li
- ShanXi Key Laboratory of Stem Cells for Immunological Dermatosis, Institute of Dermatology, Taiyuan City Center Hospital, Taiyuan, China
- State Key Breeding Laboratory of Stem Cells for Immunological Dermatosis, Institute of Dermatology, Taiyuan City Center Hospital, Taiyuan, China
| | - Kaiming Zhang
- ShanXi Key Laboratory of Stem Cells for Immunological Dermatosis, Institute of Dermatology, Taiyuan City Center Hospital, Taiyuan, China
- State Key Breeding Laboratory of Stem Cells for Immunological Dermatosis, Institute of Dermatology, Taiyuan City Center Hospital, Taiyuan, China
| |
Collapse
|
6
|
Psoriatic arthritis: review of potential biomarkers predicting response to TNF inhibitors. Inflammopharmacology 2023; 31:77-87. [PMID: 36508130 PMCID: PMC9957889 DOI: 10.1007/s10787-022-01092-x] [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: 07/20/2022] [Accepted: 10/18/2022] [Indexed: 12/14/2022]
Abstract
Psoriatic arthritis (PsA) is a chronic and painful inflammatory immune-mediated disease. It affects up to 40% of people with psoriasis and it is associated with several comorbidities such as obesity, diabetes, metabolic syndrome, and hypertension. PsA is difficult to diagnose because of its diverse symptoms, namely axial and peripheral arthritis, enthesitis, dactylitis, skin changes, and nail dystrophy. Different drugs exist to treat the inflammation and pain. When patients do not respond to conventional drugs, they are treated with biologic drugs. Tumour necrosis factor inhibitors (TNFi's) are commonly given as the first biologic drug; beside being expensive, they also lack efficacy in 50% of patients. A biomarker predicting individual patient's response to TNFi would help treating them earlier with an appropriate biologic drug. This study aimed to review the literature to identify potential biomarkers that should be investigated for their predictive ability. Several such biomarkers were identified, namely transmembrane TNFα (tmTNF), human serum albumin (HSA) and its half-life receptor, the neonatal Fc receptor (FcRn) which is also involved in IgG lifespan; calprotectin, high mobility group protein B1 (HMGB1) and advanced glycation end products (AGEs) whose overexpression lead to excessive production of pro-inflammatory cytokines; lymphotoxin α (LTα) which induces inflammation by binding to TNF receptor (TNFR); and T helper 17 (Th17) cells which induce inflammation by IL-17A secretion.
Collapse
|
7
|
Jiang Y, Dai S, Jia L, Qin L, Zhang M, Liu H, Wang X, Pang R, Zhang J, Peng G, Li W. Single-cell transcriptomics reveals cell type-specific immune regulation associated with anti-NMDA receptor encephalitis in humans. Front Immunol 2022; 13:1075675. [PMID: 36544777 PMCID: PMC9762154 DOI: 10.3389/fimmu.2022.1075675] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 11/22/2022] [Indexed: 12/05/2022] Open
Abstract
Introduction Anti-N-methyl-D-aspartate receptor encephalitis (anti-NMDARE) is a rare autoimmune disease, and the peripheral immune characteristics associated with anti-NMDARE antibodies remain unclear. Methods Herein, we characterized peripheral blood mononuclear cells from patients with anti-NMDARE and healthy individuals by single-cell RNA sequencing (scRNA-seq). Results The transcriptional profiles of 129,217 cells were assessed, and 21 major cell clusters were identified. B-cell activation and differentiation, plasma cell expansion, and excessive inflammatory responses in innate immunity were all identified. Patients with anti-NMDARE showed higher expression levels of CXCL8, IL1B, IL6, TNF, TNFSF13, TNFSF13B, and NLRP3. We observed that anti-NMDARE patients in the acute phase expressed high levels of DC_CCR7 in human myeloid cells. Moreover, we observed that anti-NMDARE effects include oligoclonal expansions in response to immunizing agents. Strong humoral immunity and positive regulation of lymphocyte activation were observed in acute stage anti-NMDARE patients. Discussion This high-dimensional single-cell profiling of the peripheral immune microenvironment suggests that potential mechanisms are involved in the pathogenesis and recovery of anti-NMDAREs.
Collapse
Affiliation(s)
- Yushu Jiang
- Department of Neurology, Henan Joint International Research Laboratory of Accurate Diagnosis, Treatment, Research and Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China,*Correspondence: Wei Li, ; Yushu Jiang,
| | - Shuhua Dai
- Department of Neurology, Henan Provincial People’s Hospital, Xinxiang Medical University, Zhengzhou, Henan, China
| | - Linlin Jia
- Department of Neurology, Henan Joint International Research Laboratory of Accurate Diagnosis, Treatment, Research and Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Lingzhi Qin
- Department of Neurology, Henan Joint International Research Laboratory of Accurate Diagnosis, Treatment, Research and Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Milan Zhang
- Department of Neurology, Henan Joint International Research Laboratory of Accurate Diagnosis, Treatment, Research and Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Huiqin Liu
- Department of Neurology, Henan Joint International Research Laboratory of Accurate Diagnosis, Treatment, Research and Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xiaojuan Wang
- Department of Neurology, Henan Joint International Research Laboratory of Accurate Diagnosis, Treatment, Research and Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Rui Pang
- Department of Neurology, Henan Joint International Research Laboratory of Accurate Diagnosis, Treatment, Research and Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jiewen Zhang
- Department of Neurology, Henan Joint International Research Laboratory of Accurate Diagnosis, Treatment, Research and Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Gongxin Peng
- China Center for Bioinformatics, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences and School of Basic Medicine, Beijing, China
| | - Wei Li
- Department of Neurology, Henan Joint International Research Laboratory of Accurate Diagnosis, Treatment, Research and Development, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan, China,*Correspondence: Wei Li, ; Yushu Jiang,
| |
Collapse
|
8
|
Cheng Q, Zhang X, Chen LS, Liu J. Mendelian randomization accounting for complex correlated horizontal pleiotropy while elucidating shared genetic etiology. Nat Commun 2022; 13:6490. [PMID: 36310177 PMCID: PMC9618026 DOI: 10.1038/s41467-022-34164-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/17/2022] [Indexed: 12/25/2022] Open
Abstract
Mendelian randomization (MR) harnesses genetic variants as instrumental variables (IVs) to study the causal effect of exposure on outcome using summary statistics from genome-wide association studies. Classic MR assumptions are violated when IVs are associated with unmeasured confounders, i.e., when correlated horizontal pleiotropy (CHP) arises. Such confounders could be a shared gene or inter-connected pathways underlying exposure and outcome. We propose MR-CUE (MR with Correlated horizontal pleiotropy Unraveling shared Etiology and confounding), for estimating causal effect while identifying IVs with CHP and accounting for estimation uncertainty. For those IVs, we map their cis-associated genes and enriched pathways to inform shared genetic etiology underlying exposure and outcome. We apply MR-CUE to study the effects of interleukin 6 on multiple traits/diseases and identify several S100 genes involved in shared genetic etiology. We assess the effects of multiple exposures on type 2 diabetes across European and East Asian populations.
Collapse
Affiliation(s)
- Qing Cheng
- grid.443347.30000 0004 1761 2353Center of Statistical Research, School of Statistics, Southwestern University of Finance and Economics, Chengdu, Sichuan China ,grid.428397.30000 0004 0385 0924Centre for Quantitative Medicine, Health Services & Systems Research, Duke-NUS Medical School, Singapore, Singapore
| | - Xiao Zhang
- grid.428397.30000 0004 0385 0924Centre for Quantitative Medicine, Health Services & Systems Research, Duke-NUS Medical School, Singapore, Singapore
| | - Lin S. Chen
- grid.170205.10000 0004 1936 7822Department of Public Health Sciences, The University of Chicago, Chicago, IL USA
| | - Jin Liu
- Centre for Quantitative Medicine, Health Services & Systems Research, Duke-NUS Medical School, Singapore, Singapore.
| |
Collapse
|
9
|
Skolnick J, Zhou H. Implications of the Essential Role of Small Molecule Ligand Binding Pockets in Protein-Protein Interactions. J Phys Chem B 2022; 126:6853-6867. [PMID: 36044742 PMCID: PMC9484464 DOI: 10.1021/acs.jpcb.2c04525] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/18/2022] [Indexed: 11/28/2022]
Abstract
Protein-protein interactions (PPIs) and protein-metabolite interactions play a key role in many biochemical processes, yet they are often viewed as being independent. However, the fact that small molecule drugs have been successful in inhibiting PPIs suggests a deeper relationship between protein pockets that bind small molecules and PPIs. We demonstrate that 2/3 of PPI interfaces, including antibody-epitope interfaces, contain at least one significant small molecule ligand binding pocket. In a representative library of 50 distinct protein-protein interactions involving hundreds of mutations, >75% of hot spot residues overlap with small molecule ligand binding pockets. Hence, ligand binding pockets play an essential role in PPIs. In representative cases, evolutionary unrelated monomers that are involved in different multimeric interactions yet share the same pocket are predicted to bind the same metabolites/drugs; these results are confirmed by examples in the PDB. Thus, the binding of a metabolite can shift the equilibrium between monomers and multimers. This implicit coupling of PPI equilibria, termed "metabolic entanglement", was successfully employed to suggest novel functional relationships among protein multimers that do not directly interact. Thus, the current work provides an approach to unify metabolomics and protein interactomics.
Collapse
Affiliation(s)
- Jeffrey Skolnick
- Center for the Study of Systems
Biology, School of Biological Sciences, Georgia Institute of Technology, 950 Atlantic Drive, NW, Atlanta, Georgia 30332, United States
| | - Hongyi Zhou
- Center for the Study of Systems
Biology, School of Biological Sciences, Georgia Institute of Technology, 950 Atlantic Drive, NW, Atlanta, Georgia 30332, United States
| |
Collapse
|
10
|
Single-cell RNA sequencing uncovers the nuclear decoy lincRNA PIRAT as a regulator of systemic monocyte immunity during COVID-19. Proc Natl Acad Sci U S A 2022; 119:e2120680119. [PMID: 35998224 PMCID: PMC9457492 DOI: 10.1073/pnas.2120680119] [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] [Indexed: 12/02/2022] Open
Abstract
SARS-CoV-2–infected patients often display characteristic changes in the production of immune mediators that trigger life-threatening courses of COVID-19. The underlying molecular mechanisms are not yet fully understood. Here, we used single-cell RNA sequencing to investigate the involvement of the emerging class of long regulatory RNA in COVID-19. Our data reveal that a previously unknown regulatory RNA in the nucleus of immune cells is altered after SARS-CoV-2 infection. The degradation of this RNA removes a natural brake on the production of critical immune mediators that can promote the development of severe COVID-19. We believe that therapeutic intervention in this nuclear RNA circuit could counteract the overproduction of disease-causing immune mediators and protect against severe COVID-19. The systemic immune response to viral infection is shaped by master transcription factors, such as NF-κB, STAT1, or PU.1. Although long noncoding RNAs (lncRNAs) have been suggested as important regulators of transcription factor activity, their contributions to the systemic immunopathologies observed during SARS-CoV-2 infection have remained unknown. Here, we employed a targeted single-cell RNA sequencing approach to reveal lncRNAs differentially expressed in blood leukocytes during severe COVID-19. Our results uncover the lncRNA PIRAT (PU.1-induced regulator of alarmin transcription) as a major PU.1 feedback-regulator in monocytes, governing the production of the alarmins S100A8/A9, key drivers of COVID-19 pathogenesis. Knockout and transgene expression, combined with chromatin-occupancy profiling, characterized PIRAT as a nuclear decoy RNA, keeping PU.1 from binding to alarmin promoters and promoting its binding to pseudogenes in naïve monocytes. NF-κB–dependent PIRAT down-regulation during COVID-19 consequently releases a transcriptional brake, fueling alarmin production. Alarmin expression is additionally enhanced by the up-regulation of the lncRNA LUCAT1, which promotes NF-κB–dependent gene expression at the expense of targets of the JAK-STAT pathway. Our results suggest a major role of nuclear noncoding RNA networks in systemic antiviral responses to SARS-CoV-2 in humans.
Collapse
|
11
|
Singh H, Rai V, Agrawal DK. LPS and oxLDL-induced S100A12 and RAGE expression in carotid arteries of atherosclerotic Yucatan microswine. Mol Biol Rep 2022; 49:8663-8672. [PMID: 35771356 DOI: 10.1007/s11033-022-07703-8] [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] [Received: 03/13/2022] [Accepted: 06/10/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND S100A12, also known as Calgranulin C, is a ligand for the receptor for advanced glycation end products (RAGE) and plays key roles in cardiovascular and other inflammatory diseases. Interactions between S100A12 and RAGE initiate downstream signaling activating extracellular signal-regulated kinases (ERK1/2), mitogen activated protein kinases (MAPK), and transcription factor NF-κB. This increases the expression of pro-inflammatory cytokines to induce the inflammatory response. S100A12, and RAGE play a critical role in the development and progression of atherosclerosis. There is a well-known relationship between the bacterial endotoxin lipopolysaccharide (LPS) and the lipid antigens oxidized low-density lipoprotein (oxLDL) in driving the immune response in atherosclerosis. METHODS AND RESULTS Our study aimed to compare the potential of LPS and oxLDL in regulating the expression of S100A12 and RAGE in atherosclerosis. The expression of these proteins was assessed in the harvested carotid arteries from LPS- and oxLDL-treated atherosclerotic Yucatan microswine. Tissues were collected from five different treatment groups: (i) angioplasty alone, (ii) LPS alone, (iii) oxLDL alone, (iv) angioplasty with LPS, and (v) angioplasty with oxLDL. Immunohistochemical findings revealed that angioplasty with LPS induced higher expression of S100A12 and RAGE compared to other treatment groups. The results were further corroborated by testing their gene expression through qPCR in cultured vascular smooth muscle cells (VSMCs) isolated from control carotid arteries and LPS- and oxLDL-treated arteries. CONCLUSIONS The results of this study suggest that LPS induces the expression of S100A12 and RAGE more than oxLDL in atherosclerotic artery and both S100A12 and RAGE could be therapeutic targets.
Collapse
Affiliation(s)
- Harbinder Singh
- Department of Translational Research, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, 309 E. Second Street, Pomona, CA, 91766, USA
| | - Vikrant Rai
- Department of Translational Research, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, 309 E. Second Street, Pomona, CA, 91766, USA
| | - Devendra K Agrawal
- Department of Translational Research, College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, 309 E. Second Street, Pomona, CA, 91766, USA.
| |
Collapse
|
12
|
The Current Status of Molecular Biomarkers for Inflammatory Bowel Disease. Biomedicines 2022; 10:biomedicines10071492. [PMID: 35884797 PMCID: PMC9312796 DOI: 10.3390/biomedicines10071492] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/20/2022] [Accepted: 06/21/2022] [Indexed: 12/12/2022] Open
Abstract
Diagnosis and prognosis of inflammatory bowel disease (IBD)-a chronic inflammation that affects the gastrointestinal tract of patients-are challenging, as most clinical symptoms are not specific to IBD, and are often seen in other inflammatory diseases, such as intestinal infections, drug-induced colitis, and monogenic diseases. To date, there is no gold-standard test for monitoring IBD. Endoscopy and imaging are essential diagnostic tools that provide information about the disease's state, location, and severity. However, the invasive nature and high cost of endoscopy make it unsuitable for frequent monitoring of disease activity in IBD patients, and even when it is possible to replace endoscopy with imaging, high cost remains a concern. Laboratory testing of blood or feces has the advantage of being non-invasive, rapid, cost-effective, and standardizable. Although the specificity and accuracy of laboratory testing alone need to be improved, it is increasingly used to monitor disease activity or to diagnose suspected IBD cases in combination with endoscopy and/or imaging. The literature survey indicates a dearth of summarization of biomarkers for IBD testing. This review introduces currently available non-invasive biomarkers of clinical importance in laboratory testing for IBD, and discusses the trends and challenges in the IBD biomarker studies.
Collapse
|
13
|
Poon SHL, Cheung JJC, Shih KC, Chan YK. A systematic review of multimodal clinical biomarkers in the management of thyroid eye disease. Rev Endocr Metab Disord 2022; 23:541-567. [PMID: 35066781 DOI: 10.1007/s11154-021-09702-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/07/2021] [Indexed: 12/25/2022]
Abstract
Thyroid Eye Disease (TED) is an autoimmune disease that affects the extraocular muscles and periorbital fat. It most commonly occurs with Graves' Disease (GD) as an extrathyroidal manifestation, hence, it is also sometimes used interchangeably with Graves' Ophthalmopathy (GO). Well-known autoimmune markers for GD include thyroid stimulating hormone (TSH) receptor antibodies (TSH-R-Ab) which contribute to hyperthyroidism and ocular signs. Currently, apart from radiological investigations, detection of TED is based on clinical signs and symptoms which is largely subjective, with no established biomarkers which could differentiate TED from merely GD. We evaluated a total of 28 studies on potential biomarkers for diagnosis of TED. Articles included were published in English, which investigated clinical markers in tear fluid, orbital adipose-connective tissues, orbital fibroblasts and extraocular muscles, serum, thyroid tissue, as well as imaging biomarkers. Results demonstrated that biomarkers with reported diagnostic power have high sensitivity and specificity for TED, including those using a combination of biomarkers to differentiate between TED and GD, as well as the use of magnetic resonance imaging (MRI). Other biomarkers which were upregulated include cytokines, proinflammatory markers, and acute phase reactants in subjects with TED, which are however, deemed less specific to TED. Further clinical investigations for these biomarkers, scrutinising their specificity and sensitivity on a larger sample of patients, may point towards selection of suitable biomarkers for aiding detection and prognosis of TED in the future.
Collapse
Affiliation(s)
- Stephanie Hiu Ling Poon
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 301B Cyberport 4, 100 Cyberport Road, Pokfulam, Hong Kong SAR
| | | | - Kendrick Co Shih
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 301B Cyberport 4, 100 Cyberport Road, Pokfulam, Hong Kong SAR.
| | - Yau Kei Chan
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 301B Cyberport 4, 100 Cyberport Road, Pokfulam, Hong Kong SAR
| |
Collapse
|
14
|
The COVID-19 Cell Signalling Problem: Spike, RAGE, PKC, p38, NFκB & IL-6 Hyper-Expression and the Human Ezrin Peptide, VIP, PKA-CREB Solution. IMMUNO 2022. [DOI: 10.3390/immuno2020017] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
SARS-CoV-2 infection inhibits interferon expression, while hyper-activating innate-immune signalling and expression of pro-inflammatory cytokines. SARS-CoV-2 proteins: Spike, M and nsp6, nsp12 and nsp13 inhibit IFR3-mediated Type-1-interferon defence, but hyper-activate intracellular signalling, which leads to dysfunctional expression of pro-inflammatory cytokines, particularly IL-1β IL-6, IL-8, and TNFα. Ezrin, a sub-membrane adaptor-protein, organises multi-protein-complexes such as ezrin+NHERF1+NHE+CFTR, which control the density and location of ACE2 receptor expression on the luminal surface of airway-epithelial-cells, as well as determining susceptibility to SARS-CoV-2 infection. This protein complex is vital for lung-surfactant production for efficient gas-exchange. Ezrin also forms multi-protein-complexes that regulate signalling kinases; Ras, PKC, PI3K, and PKA. m-RAGE is a pattern-recognition-receptor of the innate immune system that is triggered by AGEs, which are chemically modified proteins common in the elderly and obese. m-RAGE forms multi-protein complexes with ezrin and TIRAP, a toll-like-receptor adaptor-protein. The main cause of COVID-19 is not viral infection but pro-inflammatory p38MAPK signalling mediated by TLRs and RAGE. In contrast, it appears that activated ezrin+PKA signalling results in the activation of transcription-factor CREB, which suppresses NFκB mediated pro-inflammatory cytokine expression. In addition, competition between ezrin and TIRAP to form multi-protein-complexes on membrane PIP2-lipid-rafts is a macromolecular-switch that changes the priority from innate immune activation programs to adaptive immune activation programs. Human Vasoactive Intestinal Peptide (VIP), and Human Ezrin Peptides (HEP-1 and RepG3) probably inhibit COVID-19 by activating the ezrin+PKA and ras>Raf>MEK>ERK>RSK>CREB>IL-10 signalling, which favours activation of adaptive immunity programs and inhibition of the dysfunctional innate-inflammation, the cause of COVID-19. HEP-1, RepG3, and VIP in individual human volunteers and in small clinical studies have been shown to be effective COVID-19 therapies, and seem to have a closely related mechanism of action.
Collapse
|
15
|
Zhu M, Lin Tay M, Lim KS, Bolam SM, Tuari D, Callon K, Dray M, Cornish J, Woodfield TBF, Munro JT, Coleman B, Musson DS. Novel Growth Factor Combination for Improving Rotator Cuff Repair: A Rat In Vivo Study. Am J Sports Med 2022; 50:1044-1053. [PMID: 35188803 DOI: 10.1177/03635465211072557] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The lack of healing at the repaired tendon-bone interface is an important cause of failure after rotator cuff repair. While augmentation with growth factors (GFs) has demonstrated promise, the ideal combination must target all 3 tissue types at the tendon-bone interface. HYPOTHESIS The GF combination of transforming growth factor beta 1, Insulin-like growth factor 1, and parathyroid hormone will promote tenocyte proliferation and differentiation and improve the biomechanical and histological quality of the repaired tendon-bone interface. STUDY DESIGN Controlled laboratory study. METHODS In vitro, human tenocytes were cultured in the presence of the GF combination for 72 hours, and cell growth assays and the expression of genes specific to tendon, cartilage, and bone were analyzed. In vivo, adult rats (N = 46) underwent detachment and repair of the left supraspinatus tendon. A PVA-tyramine gel was used to deliver the GF combination to the tendon-bone interface. Histological, biomechanical, and RNA microarray analysis was performed at 6 and 12 weeks after surgery. Immunohistochemistry for type II and X collagen was performed at 12 weeks. RESULTS When treated with the GF combination in vitro, human tenocytes proliferated 1.5 times more than control (P = .04). The expression of scleraxis increased 65-fold (P = .013). The expression of Sox-9 (P = .011), type I collagen (P = .021), fibromodulin (P = .0075), and biglycan (P = .010) was also significantly increased, while the expression of PPARγ was decreased (P = .007). At 6 and 12 weeks postoperatively, the quality of healing on histology was significantly higher in the GF group, with the formation of a more mature tendon-bone interface, as confirmed by immunohistochemistry for type II and X collagen. The GF group achieved a load at failure and Young modulus >1.5 times higher at both time points. Microarrays at 6 weeks demonstrated upregulation of genes involved in leukocyte aggregation (S100A8, S100A9) and tissue mineralization (Bglap, serglycin, Fam20c). CONCLUSION The GF combination promoted protendon and cartilage responses in human tenocytes in vitro; it also improved the histological appearance and mechanical properties of the repair in vivo. Microarrays of the tendon-bone interface identified inflammatory and mineralization pathways affected by the GF combination, providing novel therapeutic targets for further research. CLINICAL RELEVANCE The use of this GF combination is translatable to patients and may improve healing after rotator cuff repair.
Collapse
Affiliation(s)
- Mark Zhu
- Bone and Joint Laboratory, School of Medicine, University of Auckland, Auckland, New Zealand
| | - Mei Lin Tay
- Bone and Joint Laboratory, School of Medicine, University of Auckland, Auckland, New Zealand
| | - Khoon S Lim
- Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago, Christchurch, New Zealand
| | - Scott M Bolam
- Bone and Joint Laboratory, School of Medicine, University of Auckland, Auckland, New Zealand
| | - Donna Tuari
- Bone and Joint Laboratory, School of Medicine, University of Auckland, Auckland, New Zealand
| | - Karen Callon
- Bone and Joint Laboratory, School of Medicine, University of Auckland, Auckland, New Zealand
| | - Michael Dray
- Department of Pathology, Waikato Hospital, Hamilton, New Zealand
| | - Jillian Cornish
- Bone and Joint Laboratory, School of Medicine, University of Auckland, Auckland, New Zealand
| | - Tim B F Woodfield
- Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago, Christchurch, New Zealand
| | - Jacob T Munro
- Bone and Joint Laboratory, School of Medicine, University of Auckland, Auckland, New Zealand.,Department of Orthopaedic Surgery, Auckland City Hospital, Auckland, New Zealand
| | - Brendan Coleman
- Department of Orthopaedic Surgery, Counties Manukau Health, Auckland, New Zealand
| | - David S Musson
- Bone and Joint Laboratory, School of Medicine, University of Auckland, Auckland, New Zealand
| |
Collapse
|
16
|
Synovial calprotectin for the diagnosis of periprosthetic joint infection: a diagnostic meta-analysis. J Orthop Surg Res 2022; 17:2. [PMID: 34983582 PMCID: PMC8725344 DOI: 10.1186/s13018-021-02746-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 09/21/2021] [Indexed: 12/04/2022] Open
Abstract
Background Periprosthetic joint infections (PJI) are a rare but severe complication of total joint arthroplasty (TJA). However, the diagnosis of PJI remains difficult. It is one of the research that focuses about diagnosis for PJI for majority researchers to discover a novel biomarker. This meta-analysis tried to evaluate diagnostic value of synovial calprotectin for PJI. Methods This meta-analysis search of the literature was conducted in PubMed, EMBASE, Web of Science, and the Cochrane Library. Literature quality was appraised using Quality Assessment of Diagnostic Accuracy Studies (QUADAS-2) based on RevMan (version 5.3). The diagnostic value of calprotectin for PJI was evaluated by calculating sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR), diagnostic odds ratio (DOR), diagnostic score and area under SROC (AUC) based on the Stata version 14.0 software. We conduct subgroup analysis according to the study design, cutoff values, the country of study, and gold standard. Results Seven studies were included in this meta-analysis. The pooled sensitivity of synovial calprotectin for the diagnosis of PJI was 0.94 (95% CI, 0.87–0.98), and the specificity was 0.93 (95% CI, 0.87–0.96). The pooled AUC, PLR, and NLR for synovial calprotectin were 0.98 (95% CI, 0.96–0.99), 13.65 (95% CI, 6.89–27.07), and 0.06 (95% CI, 0.02–0.15), respectively. The pooled diagnostic score and DOR were 5.4 (95% CI, 3.96–6.85) and 222.32 (95% CI, 52.52–941.12), respectively. Conclusion In summary, this meta-analysis indicates that synovial calprotectin is a promising biomarker of assistant diagnosis for PJI, as well as recommended test for excluding diagnostic tool. Supplementary Information The online version contains supplementary material available at 10.1186/s13018-021-02746-2.
Collapse
|
17
|
Jiang X, Huang CM, Feng CM, Xu Z, Fu L, Wang XM. Associations of Serum S100A12 With Severity and Prognosis in Patients With Community-Acquired Pneumonia: A Prospective Cohort Study. Front Immunol 2021; 12:714026. [PMID: 34745092 PMCID: PMC8569229 DOI: 10.3389/fimmu.2021.714026] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 10/04/2021] [Indexed: 12/23/2022] Open
Abstract
Background Previous studies indicated the calcium-binding protein S100A12 to be involved in the pathophysiology of pulmonary inflammatory diseases. However, the role of S100A12 has remained elusive in patients with community-acquired pneumonia (CAP). Therefore, the purpose of this prospective cohort study was to evaluate the association between serum S100A12 with severity and prognosis in CAP patients. Methods Two groups with either 239 CAP patients or 239 healthy controls were enrolled in our study. Fasting blood and clinical characteristics were collected. On admission, serum S100A12 was measured using enzyme-linked immunosorbent assay (ELISA). Results Serum S100A12 was increased in CAP patients compared to control subjects. Furthermore, serum S100A12 was elevated according to the severity of CAP. Correlative analysis suggested that the level of serum S100A12 was associated with blood routine indices, renal function markers, inflammatory cytokines and other clinical parameters among CAP patients. Additionally, linear and logistical regression analyses indicated that serum S100A12 was positively associated with CAP severity scores in CAP patients. In addition, the association of high serum S100A12 and prognosis was accessed using a follow-up research. Elevated serum S100A12 on admission increased the risk of death and hospital stay in CAP patients during hospitalization. Conclusions Elevated serum S100A12 on admission is positively associated with the severity and adverse prognosis in CAP patients, suggesting that S100A12 may involve in the pathophysiological process of CAP. The titre of serum S100A12 may be used as a biomarker for diagnosis and prognosis among CAP patients.
Collapse
Affiliation(s)
- Xiao Jiang
- Department of Nephrology, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Chun-Mei Huang
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China
| | - Chun-Mei Feng
- Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Zheng Xu
- Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Lin Fu
- Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, China
- Department of Toxicology, Anhui Medical University, Hefei, China
| | - Xin-Ming Wang
- Department of Pharmacy, First Affiliated Hospital of Anhui Medical University, Hefei, China
- Third-Grade Pharmaceutical Chemistry Laboratory of State Administration of Traditional Chinese Medicine, Hefei, China
| |
Collapse
|
18
|
Wang Z, Xie L, Ding G, Song S, Chen L, Li G, Xia M, Han D, Zheng Y, Liu J, Xiao T, Zhang H, Huang Y, Li Y, Huang M. Single-cell RNA sequencing of peripheral blood mononuclear cells from acute Kawasaki disease patients. Nat Commun 2021; 12:5444. [PMID: 34521850 PMCID: PMC8440575 DOI: 10.1038/s41467-021-25771-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 08/25/2021] [Indexed: 12/25/2022] Open
Abstract
Kawasaki disease (KD) is the most common cause of acquired heart disease in children in developed countries. Although functional and phenotypic changes of immune cells have been reported, a global understanding of immune responses underlying acute KD is unclear. Here, using single-cell RNA sequencing, we profile peripheral blood mononuclear cells from seven patients with acute KD before and after intravenous immunoglobulin therapy and from three age-matched healthy controls. The most differentially expressed genes are identified in monocytes, with high expression of pro-inflammatory mediators, immunoglobulin receptors and low expression of MHC class II genes in acute KD. Single-cell RNA sequencing and flow cytometry analyses, of cells from an additional 16 KD patients, show that although the percentage of total B cells is substantially decreased after therapy, the percentage of plasma cells among the B cells is significantly increased. The percentage of CD8+ T cells is decreased in acute KD, notably effector memory CD8+ T cells compared with healthy controls. Oligoclonal expansions of both B cell receptors and T cell receptors are observed after therapy. We identify biological processes potentially underlying the changes of each cell type. The single-cell landscape of both innate and adaptive immune responses provides insights into pathogenesis and therapy of KD.
Collapse
MESH Headings
- Acute Disease
- Adaptive Immunity/drug effects
- B-Lymphocytes/drug effects
- B-Lymphocytes/immunology
- B-Lymphocytes/pathology
- CD8-Positive T-Lymphocytes/drug effects
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/pathology
- Case-Control Studies
- Cell Proliferation
- Child
- Child, Preschool
- Clone Cells
- Female
- Gene Expression
- Humans
- Immunity, Innate/drug effects
- Immunoglobulins, Intravenous/therapeutic use
- Immunophenotyping
- Male
- Monocytes/drug effects
- Monocytes/immunology
- Monocytes/pathology
- Mucocutaneous Lymph Node Syndrome/drug therapy
- Mucocutaneous Lymph Node Syndrome/genetics
- Mucocutaneous Lymph Node Syndrome/immunology
- Mucocutaneous Lymph Node Syndrome/pathology
- Plasma Cells/drug effects
- Plasma Cells/immunology
- Plasma Cells/pathology
- Receptors, Antigen, B-Cell/genetics
- Receptors, Antigen, B-Cell/immunology
- Receptors, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell/immunology
- Sequence Analysis, RNA
- Single-Cell Analysis
Collapse
Affiliation(s)
- Zhen Wang
- Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.
| | - Lijian Xie
- Department of Cardiology, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Guohui Ding
- Institute for Digital Health, International Human Phenome Institutes (Shanghai), Shanghai, China
- Gui'an Bio-Med Big Data Center, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Guiyang, China
| | - Sirui Song
- Department of Cardiology, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Liqin Chen
- Department of Cardiology, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Guang Li
- Shanghai QianBei Med. Technology Co. Ltd, Shanghai, China
| | - Min Xia
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Dingding Han
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Yue Zheng
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Jia Liu
- Shanghai QianBei Med. Technology Co. Ltd, Shanghai, China
| | - Tingting Xiao
- Department of Cardiology, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Hong Zhang
- Department of Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Yujuan Huang
- Department of Cardiology, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Yixue Li
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China.
- Bio-Med Big Data Center, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China.
- Collaborative Innovation Center for Genetics and Development, Fudan University, Shanghai, China.
- Guangzhou Laboratory, Guangzhou, China.
| | - Min Huang
- Department of Cardiology, Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, China.
| |
Collapse
|
19
|
Lira-Junior R, Bissett SM, Preshaw PM, Taylor JJ, Boström EA. Levels of myeloid-related proteins in saliva for screening and monitoring of periodontal disease. J Clin Periodontol 2021; 48:1430-1440. [PMID: 34409624 DOI: 10.1111/jcpe.13534] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 07/25/2021] [Indexed: 02/01/2023]
Abstract
AIM To evaluate the salivary levels of myeloid-related markers in relation to periodontal disease and their potential screening capability, as well as the effects of periodontal treatment on these markers in periodontitis patients. MATERIALS AND METHODS Participants with a healthy periodontium (n = 60) and with gingivitis (n = 63) and periodontitis (n = 72) were recruited. Periodontitis patients received non-surgical treatment and were re-examined after 3 and 6 months. Unstimulated saliva was collected at baseline and at 1, 3, and 6 months after therapy for the periodontitis patients. Levels of colony-stimulating factor-1 (CSF-1), interleukin-34 (IL-34), S100A8/A9, S100A12, hepatocyte growth factor (HGF), IL-1β, and matrix metalloproteinase-8 (MMP-8) were analysed by immunoassays. RESULTS CSF-1, S100A8/A9, S100A12, IL-1β, MMP-8, and HGF were significantly elevated in saliva from periodontitis and gingivitis patients in comparison to healthy individuals, whereas IL-34 was significantly lower in periodontitis compared to both healthy individuals and gingivitis patients. IL-34 increased significantly 3 months after treatment, while IL-1β and MMP-8 decreased 1 month after therapy. Additionally, periodontitis patients clustered in high and low levels of S100A8/A9, whereby those with high levels had more bleeding, deeper pockets, and higher S100A12. CONCLUSIONS Salivary levels of myeloid-related markers are altered in periodontitis and are partially modulated by periodontal treatment. Measuring S100A8/A9 in saliva may identify distinct groups of periodontitis patients.
Collapse
Affiliation(s)
- Ronaldo Lira-Junior
- Division of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, Solna, Sweden
| | - Susan M Bissett
- School of Dental Sciences and Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | | | - John J Taylor
- School of Dental Sciences and Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Elisabeth A Boström
- Division of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, Solna, Sweden
| |
Collapse
|
20
|
Kim HD, Karna S, Shin Y, Vu H, Cho HJ, Kim S. S100A8 and S100A9 in saliva, blood and gingival crevicular fluid for screening established periodontitis: a cross-sectional study. BMC Oral Health 2021; 21:388. [PMID: 34372836 PMCID: PMC8351418 DOI: 10.1186/s12903-021-01749-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 07/19/2021] [Indexed: 12/31/2022] Open
Abstract
Background Periodontitis is one of major oral diseases, which has no consensus on early screening tool. This study aimed to compare the association and screening ability of S100A8 and S100A9 in saliva, blood and gingival crevicular fluid (GCF) for periodontitis status. Methods We recruited 149 community Korean adults, 50 no or initial periodontitis (NIPERIO) and 99 established periodontitis (PERIO). Using clinical attachment loss and a panoramic radiograph, stage II–IV of new classification of periodontitis proposed at 2018 was considered cases as PERIO. Enzyme linked immunosorbent assay kit was used to quantify S100A8 and S100A9. T-test, analysis of covariance, Mann–Whitney test and correlation analysis were applied to compare the relationship of S100A8 and S100A9 in saliva, blood, and GCF for periodontitis. Receiver operating characteristic curve was applied for screening ability. Results Among S100A8 and S100A9 in saliva, blood and GCF, S100A8 in saliva was significantly higher in PERIO than in NIPERIO (p < 0.05). However, S100A8 and S100A9 in GCF were higher in NIPERIO (p < 0.05). The screening ability of salivary S100A8 was 75% for PERIO, while that of GCF S100A8 was 74% for NIPERIO. Salivary S100A8 was positively correlated to blood S100A8 (p < 0.05). Conclusion Salivary S100A8 could be a potential diagnostic marker for established periodontitis and be useful for screening established periodontitis. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-021-01749-z.
Collapse
Affiliation(s)
- Hyun-Duck Kim
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea. .,Dental Research Institute, Seoul National University, Seoul, Korea.
| | - Sandeep Karna
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - YooJin Shin
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Huong Vu
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Hyun-Jae Cho
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea.,Dental Research Institute, Seoul National University, Seoul, Korea
| | - Sungtae Kim
- Dental Research Institute, Seoul National University, Seoul, Korea.,Department of Periodontology, Seoul National University Dental Hospital, Seoul, Korea
| |
Collapse
|
21
|
High Monocyte Count and Expression of S100A9 and S100A12 in Peripheral Blood Mononuclear Cells Are Associated with Poor Outcome in Patients with Metastatic Prostate Cancer. Cancers (Basel) 2021; 13:cancers13102424. [PMID: 34067757 PMCID: PMC8156049 DOI: 10.3390/cancers13102424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/05/2021] [Accepted: 05/14/2021] [Indexed: 01/14/2023] Open
Abstract
Increasing evidence indicates calcium-binding S100 protein involvement in inflammation and tumor progression. In this prospective study, we evaluated the mRNA levels of two members of this family, S100A9 and S100A12, in peripheral blood mononuclear cells (PBMCs) in a cohort of 121 prostate cancer patients using RT-PCR. Furthermore, monocyte count was determined by flow cytometry. By stratifying patients into different risk groups, according to TNM stage, Gleason score and PSA concentration at diagnosis, expression of S100A9 and S100A12 was found to be significantly higher in patients with metastases compared to patients without clinically detectable metastases. In line with this, we observed that the protein levels of S100A9 and S100A12 in plasma were higher in patients with advanced disease. Importantly, in patients with metastases at diagnosis, high monocyte count and high levels of S100A9 and S100A12 were significantly associated with short progression free survival (PFS) after androgen deprivation therapy (ADT). High monocyte count and S100A9 levels were also associated with short cancer-specific survival, with monocyte count providing independent prognostic information. These findings indicate that circulating levels of monocytes, as well as S100A9 and S100A12, could be biomarkers for metastatic prostate cancer associated with particularly poor prognosis.
Collapse
|
22
|
Leclerc CJ, Cooper TT, Bell GI, Lajoie GA, Flynn LE, Hess DA. Decellularized adipose tissue scaffolds guide hematopoietic differentiation and stimulate vascular regeneration in a hindlimb ischemia model. Biomaterials 2021; 274:120867. [PMID: 33992837 DOI: 10.1016/j.biomaterials.2021.120867] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 04/29/2021] [Accepted: 04/29/2021] [Indexed: 12/30/2022]
Abstract
Cellular therapies to stimulate therapeutic angiogenesis in individuals with critical limb ischemia (CLI) remain under intense investigation. In this context, the efficacy of cell therapy is dependent on the survival, biodistribution, and pro-angiogenic paracrine signaling of the cells transplanted. Hematopoietic progenitor cells (HPC) purified from human umbilical cord blood using high aldehyde dehydrogenase-activity (ALDHhi cells) and expanded ex vivo, represent a heterogeneous mixture of progenitor cells previously shown to support limb revascularization in mouse models of CLI. The objectives of this study were to investigate the utility of bioscaffolds derived from human decellularized adipose tissue (DAT) to guide the differentiation of seeded HPC in vitro and harness the pro-angiogenic capacity of HPC at the site of ischemia after implantation in vivo. Probing whether the DAT scaffolds altered HPC differentiation, label-free quantitative mass spectrometry and flow cytometric phenotype analyses indicated that culturing the HPC on the DAT scaffolds supported their differentiation towards the pro-angiogenic monocyte/macrophage lineage at the expense of megakaryopoiesis. Moreover, implantation of HPC in DAT scaffolds within a unilateral hindlimb ischemia model in NOD/SCID mice increased cell retention at the site of ischemia relative to intramuscular injection, and accelerated the recovery of limb perfusion, improved functional limb use and augmented CD31+ capillary density when compared to DAT implantation alone or saline-injected controls. Collectively, these data indicate that cell-instructive DAT scaffolds can direct therapeutic HPC differentiation towards the monocyte/macrophage lineage and represent a promising delivery platform for improving the efficacy of cell therapies for CLI.
Collapse
Affiliation(s)
- Christopher J Leclerc
- School of Biomedical Engineering, Amit Chakma Engineering Building, The University of Western Ontario, London, Ontario, Canada, N6A 5B9; Krembil Centre for Stem Cell Biology, Molecular Medicine Research Laboratories, Robarts Research Institute, London, Ontario, N6A 5B6, Canada
| | - Tyler T Cooper
- Krembil Centre for Stem Cell Biology, Molecular Medicine Research Laboratories, Robarts Research Institute, London, Ontario, N6A 5B6, Canada; Don Rix Protein Identification Facility, Department of Biochemistry, University of Western Ontario, London, Ontario, N6G 2V4, Canada
| | - Gillian I Bell
- Krembil Centre for Stem Cell Biology, Molecular Medicine Research Laboratories, Robarts Research Institute, London, Ontario, N6A 5B6, Canada
| | - Gilles A Lajoie
- Don Rix Protein Identification Facility, Department of Biochemistry, University of Western Ontario, London, Ontario, N6G 2V4, Canada
| | - Lauren E Flynn
- School of Biomedical Engineering, Amit Chakma Engineering Building, The University of Western Ontario, London, Ontario, Canada, N6A 5B9; Department of Chemical and Biochemical Engineering, Thompson Engineering Building, The University of Western Ontario, London, Ontario, N6A 5B9, Canada; Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, N6A 3K7, Canada
| | - David A Hess
- Krembil Centre for Stem Cell Biology, Molecular Medicine Research Laboratories, Robarts Research Institute, London, Ontario, N6A 5B6, Canada; Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, N6A 5C1, Canada.
| |
Collapse
|
23
|
Impact of Exercise Intensity on Calprotectin Levels in Healthy Volunteers and Patients with Inflammatory Rheumatic Diseases. Life (Basel) 2021; 11:life11050377. [PMID: 33922149 PMCID: PMC8143494 DOI: 10.3390/life11050377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 11/16/2022] Open
Abstract
Exercise influences inflammatory response and immune system performance. The regular practice of a moderate activity positively regulates immunity and the inflammatory process, while intensive training depresses it and enhances inflammatory marker secretion. Calprotectin is involved in the inflammatory process, promoting neutrophil recruitment, cell degranulation, and inflammatory mediators. Furthermore, calprotectin has been associated with various inflammatory diseases, including inflammatory rheumatic diseases. The present review explores the effect of exercise on calprotectin levels in both healthy and inflammatory rheumatic conditions. Data show that the intensity duration and the type of exercise modulate calprotectin levels and participant inflammatory status. The exact role of calprotectin in the exercise response is yet unknown. Calprotectin could constitute an interesting biomarker for monitoring both the effect of exercise on the inflammatory process in healthy volunteers and the efficiency of exercise treatment programs in a patient with inflammatory rheumatic disease.
Collapse
|
24
|
Defrêne J, Berrazouane S, Esparza N, Pagé N, Côté MF, Gobeil S, Aoudjit F, Tessier PA. Deletion of S100a8 and S100a9 Enhances Skin Hyperplasia and Promotes the Th17 Response in Imiquimod-Induced Psoriasis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2021; 206:505-514. [PMID: 33361205 DOI: 10.4049/jimmunol.2000087] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 11/26/2020] [Indexed: 02/04/2023]
Abstract
High concentrations of the damage-associated molecular patterns S100A8 and S100A9 are found in skin and serum from patients suffering from psoriasis, an IL-17-related disease. Notably, although the expression of these proteins correlates with psoriatic disease severity, the exact function of S100A8 and S100A9 in psoriasis pathogenesis remains unclear. In this study, we investigated the role of S100A8 and S100A9 in psoriasis-associated skin hyperplasia and immune responses using S100a8-/- and S100a9-/- mice in an imiquimod-induced model of psoriasis. We found that S100a8-/- and S100a9-/- psoriatic mice exhibit worsened clinical symptoms relative to wild-type mice and increased expression of S100A9 and S100A8 proteins in keratinocytes, respectively. In addition, the loss of S100A8 enhances proliferation of keratinocytes and disrupts keratinocyte differentiation. We further detected elevated production of IL-17A and -F from CD4+ T cells in the absence of S100A8 and S100A9, as well as increased infiltration of neutrophils in the skin. In addition, treatment with anti-IL-17A and -F was found to reduce psoriasis symptoms and skin hyperplasia in S100a8-/- and S100a9-/- mice. These data suggest that S100A8 and S100A9 regulate psoriasis by inhibiting production of IL-17A and -F, thereby, to our knowledge, providing new insights into their biological functions.
Collapse
Affiliation(s)
- Joan Defrêne
- Axe de Recherche sur les Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada
| | - Sofiane Berrazouane
- Axe de Recherche sur les Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada
| | - Nayeli Esparza
- Axe de Recherche sur les Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada
| | - Nathalie Pagé
- Axe de Recherche sur les Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada
| | - Marie-France Côté
- Axe Endocrinologie et Néphrologie, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada
| | - Stéphane Gobeil
- Axe Endocrinologie et Néphrologie, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada
- Département de Médecine Moléculaire, Faculté de Médecine, Université Laval, Quebec City, Quebec G1V 0A6, Canada; and
| | - Fawzi Aoudjit
- Axe de Recherche sur les Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada
- Département de Microbiologie-Infectiologie et d'Immunologie, Faculté de Médecine, Université Laval, Quebec City, Quebec G1V 0A6, Canada
| | - Philippe A Tessier
- Axe de Recherche sur les Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada;
- Département de Microbiologie-Infectiologie et d'Immunologie, Faculté de Médecine, Université Laval, Quebec City, Quebec G1V 0A6, Canada
| |
Collapse
|
25
|
Sreejit G, Abdel Latif A, Murphy AJ, Nagareddy PR. Emerging roles of neutrophil-borne S100A8/A9 in cardiovascular inflammation. Pharmacol Res 2020; 161:105212. [PMID: 32991974 DOI: 10.1016/j.phrs.2020.105212] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/11/2020] [Accepted: 09/21/2020] [Indexed: 02/07/2023]
Abstract
Elevated neutrophil count is associated with higher risk of major adverse cardiac events including myocardial infarction and early development of heart failure. Neutrophils contribute to cardiac damage through a number of mechanisms, including attraction of other immune cells and release of inflammatory mediators. Recently, a number of independent studies have reported a causal role for neutrophil-derived alarmins (i.e. S100A8/A9) in inducing inflammation and cardiac injury following myocardial infarction (MI). Furthermore, a positive correlation between serum S100A8/A9 levels and major adverse cardiac events (MACE) in MI patients was also observed implying that targeting neutrophils or their inflammatory cargo could be beneficial in reducing heart failure. However, contradictory to this idea, neutrophils and neutrophil-derived S100A8/A9 also seem to play a vital role in the resolution of inflammation. Thus, a better understanding of how neutrophils balance these seemingly contrasting functions would allow us to develop effective therapies that preserve the inflammation-resolving function while restricting the damage caused by inflammation. In this review, we specifically discuss the mechanisms behind neutrophil-derived S100A8/A9 in promoting inflammation and resolution in the context of MI. We also provide a perspective on how neutrophils could be potentially targeted to ameliorate cardiac inflammation and the ensuing damage.
Collapse
Affiliation(s)
- Gopalkrishna Sreejit
- Division of Cardiac Surgery, Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Ahmed Abdel Latif
- Division of Cardiovascular Medicine, Department of Medicine, University of Kentucky, Lexington, KY, USA
| | - Andrew J Murphy
- Baker Heart and Diabetes Institute, Division of Immunometabolism, Melbourne, Australia
| | - Prabhakara R Nagareddy
- Division of Cardiac Surgery, Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
| |
Collapse
|
26
|
Kim HD, Kim S, Jeon S, Kim SJ, Cho HJ, Choi YN. Diagnostic and Prognostic ability of salivary MMP-9 and S100A8 for periodontitis. J Clin Periodontol 2020; 47:1191-1200. [PMID: 32744384 DOI: 10.1111/jcpe.13349] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 07/09/2020] [Accepted: 07/27/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Salivary diagnostic using matrix metalloproteinase (MMP) and S100 for periodontitis is a promising issue. However, its prognostic effect is still unclear. This study aimed to evaluate the prognostic ability of salivary MMP-9 and S100A8 for periodontitis through non-surgical periodontitis treatment clinical trial. MATERIALS AND METHODS Total 149 participants, 99 periodontitis and 50 healthy, were recruited. Among 99 non-surgical periodontitis treatment participants, 74 participants were revisited after three months. Periodontitis was classified as stage II-IV of new classification of periodontitis proposed at 2018. Enzyme-linked immunosorbent assay kit was used to quantify salivary MMP-9 and S100A8. Receiver operating characteristic curve was applied for diagnostic ability. Paired t test was applied for prognostic ability evaluating changes in salivary markers between pre- and post-treatment. RESULTS Salivary MMP-9 and S100A8 were associated with periodontitis (p < .05). The screening ability of algorithm using salivary MMP-9 and S100A8 for periodontitis was 0.86 (p < .05). After treatment, reduction rate of salivary S100A8 and MMP-9 was 83.7% and 23.5%, respectively, (p < .05): only salivary S100A8 was superior compared to clinical parameters. CONCLUSION Algorithm using salivary MMP-9 and S100A8 showed high diagnostic power for periodontitis. Both salivary S100A8 and MMP-9 showed prognostic ability for periodontitis, but S100A8 was better.
Collapse
Affiliation(s)
- Hyun-Duck Kim
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, Seoul, Korea.,Dental Research Institute, Seoul National University, Seoul, Korea
| | - Sungtae Kim
- Department of Periodontology, Seoul National University Dental Hospital, Seoul, Korea
| | - Sumin Jeon
- Department of Microbiology and Immunity, School of Dentistry, Seoul National University, Seoul, Korea
| | - Seon-Jip Kim
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, Seoul, Korea
| | - Hyun-Jae Cho
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, Seoul, Korea.,Dental Research Institute, Seoul National University, Seoul, Korea
| | - Young-Nim Choi
- Dental Research Institute, Seoul National University, Seoul, Korea.,Department of Microbiology and Immunity, School of Dentistry, Seoul National University, Seoul, Korea
| |
Collapse
|
27
|
Allgöwer C, Kretz AL, von Karstedt S, Wittau M, Henne-Bruns D, Lemke J. Friend or Foe: S100 Proteins in Cancer. Cancers (Basel) 2020; 12:cancers12082037. [PMID: 32722137 PMCID: PMC7465620 DOI: 10.3390/cancers12082037] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/21/2020] [Accepted: 07/23/2020] [Indexed: 12/24/2022] Open
Abstract
S100 proteins are widely expressed small molecular EF-hand calcium-binding proteins of vertebrates, which are involved in numerous cellular processes, such as Ca2+ homeostasis, proliferation, apoptosis, differentiation, and inflammation. Although the complex network of S100 signalling is by far not fully deciphered, several S100 family members could be linked to a variety of diseases, such as inflammatory disorders, neurological diseases, and also cancer. The research of the past decades revealed that S100 proteins play a crucial role in the development and progression of many cancer types, such as breast cancer, lung cancer, and melanoma. Hence, S100 family members have also been shown to be promising diagnostic markers and possible novel targets for therapy. However, the current knowledge of S100 proteins is limited and more attention to this unique group of proteins is needed. Therefore, this review article summarises S100 proteins and their relation in different cancer types, while also providing an overview of novel therapeutic strategies for targeting S100 proteins for cancer treatment.
Collapse
Affiliation(s)
- Chantal Allgöwer
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (C.A.); (A.-L.K.); (M.W.); (D.H.-B.)
| | - Anna-Laura Kretz
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (C.A.); (A.-L.K.); (M.W.); (D.H.-B.)
| | - Silvia von Karstedt
- Department of Translational Genomics, Center of Integrated Oncology Cologne-Bonn, Medical Faculty, University Hospital Cologne, Weyertal 115b, 50931 Cologne, Germany;
- CECAD Cluster of Excellence, University of Cologne, Joseph-Stelzmann-Straße 26, 50931 Cologne, Germany
- Center of Molecular Medicine Cologne, Medical Faculty, University Hospital of Cologne, Weyertal 115b, 50931 Cologne, Germany
| | - Mathias Wittau
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (C.A.); (A.-L.K.); (M.W.); (D.H.-B.)
| | - Doris Henne-Bruns
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (C.A.); (A.-L.K.); (M.W.); (D.H.-B.)
| | - Johannes Lemke
- Department of General and Visceral Surgery, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany; (C.A.); (A.-L.K.); (M.W.); (D.H.-B.)
- Correspondence: ; Tel.: +49-731-500-53691
| |
Collapse
|
28
|
Salivary Proteomic Analysis of Betel Nut (Areca catechu) Consumers by Mass Spectrometry Revealed Primary Indication of Oral Malignancies. Int J Pept Res Ther 2020. [DOI: 10.1007/s10989-019-09909-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
29
|
Role of S100 proteins in health and disease. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1867:118677. [PMID: 32057918 DOI: 10.1016/j.bbamcr.2020.118677] [Citation(s) in RCA: 139] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/22/2020] [Accepted: 02/09/2020] [Indexed: 12/16/2022]
Abstract
The S100 family of proteins contains 25 known members that share a high degree of sequence and structural similarity. However, only a limited number of family members have been characterized in depth, and the roles of other members are likely undervalued. Their importance should not be underestimated however, as S100 family members function to regulate a diverse array of cellular processes including proliferation, differentiation, inflammation, migration and/or invasion, apoptosis, Ca2+ homeostasis, and energy metabolism. Here we detail S100 target protein interactions that underpin the mechanistic basis to their function, and discuss potential intervention strategies targeting S100 proteins in both preclinical and clinical situations.
Collapse
|
30
|
Lira-Junior R, Holmström SB, Clark R, Zwicker S, Majster M, Johannsen G, Axtelius B, Åkerman S, Svensson M, Klinge B, Boström EA. S100A12 Expression Is Modulated During Monocyte Differentiation and Reflects Periodontitis Severity. Front Immunol 2020; 11:86. [PMID: 32082330 PMCID: PMC7005221 DOI: 10.3389/fimmu.2020.00086] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 01/13/2020] [Indexed: 12/23/2022] Open
Abstract
S100A12 is a calcium-binding protein of the S100 subfamily of myeloid-related proteins that acts as an alarmin to induce a pro-inflammatory innate immune response. It has been linked to several chronic inflammatory diseases, however its role in the common oral immunopathology periodontitis is largely unknown. Previous in vitro monoculture experiments indicate that S100A12 production decreases during monocyte differentiation stages, while the regulation within tissue is poorly defined. This study evaluated S100A12 expression in monocyte subsets, during monocyte-to-macrophage differentiation and following polarization, both in monoculture and in a tissue context, utilizing a three-dimensional co-culture oral tissue model. Further, we explored the involvement of S100A12 in periodontitis by analyzing its expression in peripheral circulation and gingival tissue, as well as in saliva. We found that S100A12 expression was higher in classical than in non-classical monocytes. S100A12 expression and protein secretion declined significantly during monocyte-to-macrophage differentiation, while polarization of monocyte-derived macrophages had no effect on either. Peripheral monocytes from periodontitis patients had higher S100A12 expression than monocytes from controls, a difference particularly observed in the intermediate and non-classical monocyte subsets. Further, monocytes from periodontitis patients displayed an increased secretion of S100A12 compared with monocytes from controls. In oral tissue cultures, monocyte differentiation resulted in increased S100A12 secretion over time, which further increased after inflammatory stimuli. Likewise, S100A12 expression was higher in gingival tissue from periodontitis patients where monocyte-derived cells exhibited higher expression of S100A12 in comparison to non-periodontitis tissue. In line with our findings, patients with severe periodontitis had significantly higher levels of S100A12 in saliva compared to non-periodontitis patients, and the levels correlated to clinical periodontal parameters. Taken together, S100A12 is predominantly secreted by monocytes rather than by monocyte-derived cells. Moreover, S100A12 is increased in inflamed tissue cultures, potentially as a result of enhanced production by monocyte-derived cells. This study implicates the involvement of S100A12 in periodontitis pathogenesis, as evidenced by increased S100A12 expression in inflamed gingival tissue, which may be due to altered circulatory monocytes in periodontitis.
Collapse
Affiliation(s)
- Ronaldo Lira-Junior
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Sofia Björnfot Holmström
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Reuben Clark
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Stephanie Zwicker
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Mirjam Majster
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Gunnar Johannsen
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Björn Axtelius
- Department of Oral Diagnostics, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Sigvard Åkerman
- Department of Orofacial Pain and Jaw Function, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Mattias Svensson
- Department of Medicine, Center for Infectious Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Björn Klinge
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden.,Department of Periodontology, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Elisabeth A Boström
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| |
Collapse
|
31
|
Sreejit G, Flynn MC, Patil M, Krishnamurthy P, Murphy AJ, Nagareddy PR. S100 family proteins in inflammation and beyond. Adv Clin Chem 2020; 98:173-231. [PMID: 32564786 DOI: 10.1016/bs.acc.2020.02.006] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The S100 family proteins possess a variety of intracellular and extracellular functions. They interact with multiple receptors and signal transducers to regulate pathways that govern inflammation, cell differentiation, proliferation, energy metabolism, apoptosis, calcium homeostasis, cell cytoskeleton and microbial resistance. S100 proteins are also emerging as novel diagnostic markers for identifying and monitoring various diseases. Strategies aimed at targeting S100-mediated signaling pathways hold a great potential in developing novel therapeutics for multiple diseases. In this chapter, we aim to summarize the current knowledge about the role of S100 family proteins in health and disease with a major focus on their role in inflammatory conditions.
Collapse
Affiliation(s)
| | - Michelle C Flynn
- Division of Immunometabolism, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Mallikarjun Patil
- Department of Biomedical Engineering, Schools of Medicine and Engineering, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Prasanna Krishnamurthy
- Department of Biomedical Engineering, Schools of Medicine and Engineering, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Andrew J Murphy
- Division of Immunometabolism, Baker Heart and Diabetes Institute, Melbourne, VIC, Australia; Department of Immunology, Monash University, Melbourne, VIC, Australia
| | | |
Collapse
|
32
|
Cesaro A, Defrêne J, Lachhab A, Pagé N, Tardif MR, Al-Shami A, Oravecz T, Fortin PR, Daudelin JF, Labrecque N, Aoudjit F, Pelletier M, Tessier PA. Enhanced myelopoiesis and aggravated arthritis in S100a8-deficient mice. PLoS One 2019; 14:e0221528. [PMID: 31437241 PMCID: PMC6705798 DOI: 10.1371/journal.pone.0221528] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 08/08/2019] [Indexed: 12/29/2022] Open
Abstract
Expressed strongly by myeloid cells, damage-associated molecular pattern (DAMP) proteins S100A8 and S100A9 are found in the serum of patients with infectious and autoimmune diseases. Compared to S100A9, the role of S100A8 is controversial. We investigated its biological activity in collagen-induced arthritis using the first known viable and fertile S100a8-deficient (S100a8-/-) mouse. Although comparable to the wild type (WT) in terms of lymphocyte distribution in blood and in the primary and secondary lymphoid organs, S100a8-/- mice had increased numbers of neutrophils, monocytes and dendritic cells in the blood and bone marrow, and these all expressed myeloid markers such as CD11b, Ly6G and CD86 more strongly. Granulocyte-macrophage common precursors were increased in S100a8-/- bone marrow and yielded greater numbers of macrophages and dendritic cells in culture. The animals also developed more severe arthritic disease leading to aggravated osteoclast activity and bone destruction. These findings were correlated with increased inflammatory cell infiltration and cytokine secretion in the paws. This study suggests that S100A8 is an anti-inflammatory DAMP that regulates myeloid cell differentiation, thereby mitigating the development of experimental arthritis.
Collapse
Affiliation(s)
- Annabelle Cesaro
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
| | - Joan Defrêne
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
| | - Asmaa Lachhab
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
| | - Nathalie Pagé
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
| | - Mélanie R. Tardif
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
| | - Amin Al-Shami
- Lexicon Pharmaceuticals, Inc., The Woodlands, Texas, United States of America
| | - Tamas Oravecz
- Lexicon Pharmaceuticals, Inc., The Woodlands, Texas, United States of America
| | - Paul R. Fortin
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
- Département de médecine, Faculté de Médecine, Université Laval, Quebec City, Quebec, Canada
| | | | - Nathalie Labrecque
- Maisonneuve-Rosemont Hospital Research Centre, Montreal, Quebec, Canada
- Department of Medicine and Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montréal, Canada
| | - Fawzi Aoudjit
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
- Département de microbiologie-infectiologie et d’immunologie, Faculté de Médecine, Université Laval, Quebec City, Quebec, Canada
| | - Martin Pelletier
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
- Département de microbiologie-infectiologie et d’immunologie, Faculté de Médecine, Université Laval, Quebec City, Quebec, Canada
| | - Philippe A. Tessier
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
- Département de microbiologie-infectiologie et d’immunologie, Faculté de Médecine, Université Laval, Quebec City, Quebec, Canada
- * E-mail:
| |
Collapse
|
33
|
Katsafadou AI, Tsangaris GT, Anagnostopoulos AK, Billinis C, Barbagianni MS, Vasileiou NGC, Spanos SA, Mavrogianni VS, Fthenakis GC. Differential quantitative proteomics study of experimental Mannheimia haemolytica mastitis in sheep. J Proteomics 2019; 205:103393. [PMID: 31154024 DOI: 10.1016/j.jprot.2019.103393] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 05/12/2019] [Accepted: 05/14/2019] [Indexed: 02/08/2023]
Abstract
Objective was the differential quantitative proteomics study of ovine mastitis induced by Mannheimia haemolytica; clinical, microbiological, cytological and histopathological methods were employed for confirmation and monitoring. Proteins were separated by two-dimensional gel electrophoresis (2-DE) for all samples and differentially abundant proteins were identified by mass spectrometry; comparisons were performed with pre- (blood, milk) and post- (milk of contralateral gland) inoculation findings. Animals developed mastitis, confirmed by isolation of challenge strain and increase of neutrophils in milk and by histopathological evidence. In blood plasma, 33 differentially abundant proteins (compared to findings before challenge) were identified: 6 with decrease, 13 with new appearance and 14 with varying abundance. In a post-challenge milk whey protein reference map, 65 proteins were identified; actin cytoplasmic-1, beta-lactoglobulin-1/B, cathelicidin-1 predominated. Further, 89 differentially abundant proteins (compared to findings before challenge) were identified: 18 with decrease, 53 with new appearance, 3 with increase and 15 with varying abundance; 15 proteins showed status changes in blood plasma and milk whey. Differential abundance from inoculated and contralateral glands revealed 74 proteins only from the inoculated gland. Most differentially abundant proteins in milk whey were involved in cell organisation and biogenesis (n = 17) or in inflammatory and defence response (n = 13). SIGNIFICANCE: The proteomes of blood and milk from ewes with experimental mastitis caused by Mannheimia haemolytica and the differential proteomics in sequential samples after challenge are presented for the first time. This is the first detailed proteomics study in M. haemolytica-associated mastitis in ewes. An experimental model fully simulating natural mastitis has been used. Use of experimentally induced mastitis minimised potential variations and allowed consistency of results. The study included evaluation of changes in blood plasma and milk whey. Protein patterns have been studied, indicating with great accuracy changes that had occurred as part of the disease process and development, during the acute phase of infection. Relevant protein-protein interactions were studied. The entirety of proteomics findings has suggested that affected ewes had mounted a defence response that had been regulated by many proteins (e.g., cathelicidins, haptoglobin, serum amyloid A) and through various pathways (e.g., acute phase response, binding and transporting significant ions and molecules); these were interdependent at various points. Potential biomarkers have been indicated for use in diagnostic assays of mastitis.
Collapse
Affiliation(s)
- Angeliki I Katsafadou
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece; Proteomics Research Unit, Biomedical Research Foundation of Academy of Athens, 11527 Athens, Greece
| | - George Th Tsangaris
- Proteomics Research Unit, Biomedical Research Foundation of Academy of Athens, 11527 Athens, Greece
| | | | | | | | | | - Stavros A Spanos
- Veterinary Faculty, University of Thessaly, 43100 Karditsa, Greece
| | | | | |
Collapse
|
34
|
Duvetorp A, Söderman J, Assarsson M, Skarstedt M, Svensson Å, Seifert O. Observational study on Swedish plaque psoriasis patients receiving narrowband-UVB treatment show decreased S100A8/A9 protein and gene expression levels in lesional psoriasis skin but no effect on S100A8/A9 protein levels in serum. PLoS One 2019; 14:e0213344. [PMID: 30865695 PMCID: PMC6415841 DOI: 10.1371/journal.pone.0213344] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 02/12/2019] [Indexed: 11/19/2022] Open
Abstract
S100A8 and S100A9 proteins are highly upregulated in patients with psoriasis and have been proposed as potential biomarkers for psoriasis. The present study was designed to analyze the effect of narrowband ultraviolet B therapy on these proteins. S100A8, S100A9 gene expression and S100A8/A9 heterocomplex protein levels were analyzed in lesional and non-lesional skin before and after narrowband-UVB treatment in patients with chronic plaque type psoriasis. In addition, disease severity was measured by psoriasis area and severity index (PASI) and serum protein levels of S100A8/A9 were repeatedly analyzed. Narrowband-UVB treatment significantly reduced S100A8, S100A9 gene expression and S100A8/A9 protein levels in lesional skin while serum levels showed no significant change. No correlation between PASI and serum S100A8/A9 protein levels was found. These results implicate a role of S100A8/A9 in the anti-inflammatory effect of narrowband-UVB. Serum S100A8/A9 levels do not respond to treatment suggesting that serum S100A8/A9 does not originate from psoriasis skin keratinocytes. Serum S100A8/A9 levels do not correlate with PASI questioning serum S100A8/A9 as a biomarker for psoriasis skin activity. Trial Registration: DRKS 00014817.
Collapse
Affiliation(s)
- Albert Duvetorp
- Department of Dermatology and Venereology, Division of endocrinology, skin, reproductive health and ophthalmology, Skåne University Hospital, Malmö, Sweden
- Department of Clinical and Experimental Medicine, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
- * E-mail:
| | - Jan Söderman
- Department of Clinical and Experimental Medicine, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
- Laboratory Medicine, Division of Medical Diagnostics, Ryhov County Hospital, Jönköping, Sweden
| | - Malin Assarsson
- Department of Dermatology and Venereology, Division of Medical Health, Ryhov County Hospital, Jönköping, Sweden
| | - Marita Skarstedt
- Laboratory Medicine, Division of Medical Diagnostics, Ryhov County Hospital, Jönköping, Sweden
| | - Åke Svensson
- Department of Dermatology and Venereology, Division of endocrinology, skin, reproductive health and ophthalmology, Skåne University Hospital, Malmö, Sweden
| | - Oliver Seifert
- Department of Clinical and Experimental Medicine, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
- Department of Dermatology and Venereology, Division of Medical Health, Ryhov County Hospital, Jönköping, Sweden
| |
Collapse
|
35
|
Kabeerdoss J, Thomas M, Goel R, Mohan H, Danda S, L J, Danda D. High expression of S100 calgranulin genes in peripheral blood mononuclear cells from patients with Takayasu arteritis. Cytokine 2018; 114:61-66. [PMID: 30594066 DOI: 10.1016/j.cyto.2018.11.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/18/2018] [Accepted: 11/28/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Toll-like receptors (TLR) 1 to 4 are highly expressed in aorta. Activation of TLR4 causes transmural arteritis in Human temporal artery-SCID chimera model. Neither TLR-4 nor its ligands have been studied in TA patients as yet. Aim of this study was to examine the expression of TLR4 and its endogenous ligands in peripheral blood mononuclear cells (PBMCs) of patients with Takayasu arteritis (TA). METHODS mRNA expression of TLR4, RAGE and various endogenous TLR4 ligands were quantified in PBMCs of 24 TA patients and 19 sex and age matched healthy controls by real time PCR using specific primers and SYBR Green qPCR master mix. S100A8/A9 and S100A12 were measured in cell culture supernatant of PBMCs from TA patients and healthy controls, both in un-stimulated state as well as, after lipopolysaccharides (LPS) stimulated cultures for 4 h. Expression of S100A8/A9 in aortic tissues was assessed by immunohistochemistry. RESULTS The mRNA expression of S100A8, S100A9, S100A12 and TLR4 were higher, while expression of RAGE and HSP70 were lower in TA as compared to healthy controls. Induction with LPS led to increase in secretion of both S100A8/A9 and S100A12 levels in TA as well as healthy controls. The fold of induction, measured by LPS stimulated/unstimulated control was higher in healthy controls [2.88 (1.7-3.53) fold] as compared to TA [1.345 (1-1.82) fold]; p < 0.05. Numerically, S100A8/A9 was also higher in healthy controls [2.04 (1.7-5.6) fold] as compared to TA [1.38 (1.09-3.6) fold], but it didn't reach statistical significance; p = 0.129. Mild to moderate intensity expression of S100A8/A9 protein was noted in aortic tissues from patients with TA. CONCLUSION mRNA expression of TLR4 and its ligand S100A8, S100A9, and S100A12 in PBMCs of TA patients was higher as compared to healthy controls. LPS stimulation led to higher induction of S100A12 secretion in healthy controls as compared to TA. Expression of S100A8/A9 was detected in inflamed aortic tissues from patients with TA.
Collapse
Affiliation(s)
- Jayakanthan Kabeerdoss
- Department of Clinical Immunology and Rheumatology, Christian Medical College, Vellore, Tamil Nadu, India
| | - Meera Thomas
- Department of Pathology, Christian Medical College, Vellore, Tamil Nadu, India
| | - Ruchika Goel
- Department of Clinical Immunology and Rheumatology, Christian Medical College, Vellore, Tamil Nadu, India
| | - Hindumathi Mohan
- Department of Clinical Immunology and Rheumatology, Christian Medical College, Vellore, Tamil Nadu, India
| | - Sumita Danda
- Department of Clinical Genetics, Christian Medical College, Vellore, Tamil Nadu, India
| | - Jeyaseelan L
- Department of Biostatistics, Christian Medical College, Vellore, Tamil Nadu, India
| | - Debashish Danda
- Department of Clinical Immunology and Rheumatology, Christian Medical College, Vellore, Tamil Nadu, India.
| |
Collapse
|
36
|
Bai Y, Li LD, Li J, Lu X. Prognostic values of S100 family members in ovarian cancer patients. BMC Cancer 2018; 18:1256. [PMID: 30558666 PMCID: PMC6296138 DOI: 10.1186/s12885-018-5170-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 12/02/2018] [Indexed: 01/06/2023] Open
Abstract
Objective Exhibiting high consistence in sequence and structure, S100 family members are interchangeable in function and they show a wide spectrum of biological processes, including proliferation, apoptosis, migration, inflammation and differentiation and the like. While the prognostic value of each individual S100 in ovarian cancer is still elusive. In current study, we investigated the prognostic value of S100 family members in the ovarian cancer. Methods We used the Kaplan Meier plotter (KM plotter) database, in which updated gene expression data and survival information are from 1657 ovarian cancer patients, to assess the relevance of individual S100 family mRNA expression to overall survival in various ovarian cancer subtypes and different clinicopathological features. Results It was found that high expression of S100A2 (HR = 1.18, 95%CI: 1.04–1.34, P = 0.012), S100A7A (HR = 1.3, 95%CI: 1.04–1.63, P = 0.02),S100A10 (HR = 1.2, 95%CI: 1.05–1.38, P = 0.0087),and S100A16 (HR = 1.23, 95%CI: 1–1.51, P = 0.052) were significantly correlated with worse OS in all ovarian cancer patients, while the expression of S100A1 (HR = 0.87, 95%CI: 0.77–0.99, P = 0.039), S100A3 (HR = 0.83, 95%CI: 0.71–0.96, P = 0.0011), S100A5 (HR = 0.84, 95%CI: 0.73–0.97, P = 0.017), S100A6 (HR = 0.84, 95%CI: 0.72–0.98, P = 0.024), S100A13 (HR = 0.85, 95%CI:0.75–0.97, P = 0.014) and S100G (HR = 0.86, 95%CI: 0.74–0.99, P = 0.041) were associated with better prognosis. Furthermore, we assessed the prognostic value of S100 expression in different subtypes and the clinicopathological features, including pathological grades, clinical stages and TP53 mutation status, of ovarian cancer patients. Conclusion Comprehensive understanding of the S100 family members may have guiding significance for the diagnosis and outcome of ovarian cancer patients. Electronic supplementary material The online version of this article (10.1186/s12885-018-5170-3) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Yang Bai
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China.,Department of Obstetrics and Gynecology of Shanghai Medical College, Fudan University, Shanghai, 200032, China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China
| | - Liang-Dong Li
- Department of Breast Surgery, Key Laboratory of Breast Cancer in Shanghai, Fudan University Shanghai Cancer Center, Shanghai, 200030, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200030, China
| | - Jun Li
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China.,Department of Obstetrics and Gynecology of Shanghai Medical College, Fudan University, Shanghai, 200032, China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China
| | - Xin Lu
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, 200011, China. .,Department of Obstetrics and Gynecology of Shanghai Medical College, Fudan University, Shanghai, 200032, China. .,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, China. .,Present Address: Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, No.419, Fangxie Road, Shanghai, 200011, China.
| |
Collapse
|
37
|
Nedjadi T, Evans A, Sheikh A, Barerra L, Al-Ghamdi S, Oldfield L, Greenhalf W, Neoptolemos JP, Costello E. S100A8 and S100A9 proteins form part of a paracrine feedback loop between pancreatic cancer cells and monocytes. BMC Cancer 2018; 18:1255. [PMID: 30558665 PMCID: PMC6296088 DOI: 10.1186/s12885-018-5161-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 11/29/2018] [Indexed: 01/12/2023] Open
Abstract
Background The secretion of soluble factors enables communication between tumour cells and the surrounding microenvironment and plays an important role in oncogenesis. Pancreatic ductal adenocarcinoma (PDAC) is characterised by a highly reactive microenvironment, harbouring a variety of cell types, including S100A8/S100A9-expressing monocytes. S100A8/S100A9 proteins regulate the behaviour of cancer cells by inducing pre-metastatic cascades associated with cancer spread. The aim of this study was to examine how S100A8/A9 proteins mediate tumour-stroma crosstalk in PDAC. Methods Cytokine profiling of pancreatic cancer cell-derived conditioned media was performed using Bio-Plex Pro 27 Plex Human Cytokine assays. Protein expression and activation of downstream signalling effectors and NF-κB were assessed by western blotting analysis and reporter assays respectively. Results Stimulation of cultured pancreatic cancer cells with S100A8 and S100A9 increased the secretion of the pro-inflammatory cytokines IL-8, TNF-α, and FGF. S100A8, but not S100A9 induced PDGF secretion. Conversely, pancreatic cancer cell-derived conditioned media and the individual cytokines, TNF-α and TGF-β induced the expression of S100A8 and S100A9 proteins in the HL-60 monocytic cell line and primary human monocytes, while FGF and IL-8 induced the expression of S100A9 only. S100A8 and S100A9 activated MAPK and NF-κB signalling in pancreatic cancer. This was partially mediated via activation of the receptor of advanced glycosylation end-product (RAGE). Conclusion S100A8 and S100A9 proteins induce specific cytokine secretion from PDAC cells, which in turn enhances the expression of S100A8/A9. This paracrine crosstalk could have implications for PDAC invasiveness and metastatic potential. Electronic supplementary material The online version of this article (10.1186/s12885-018-5161-4) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Taoufik Nedjadi
- King Abdullah International Medical Research Centre, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, P. O. Box 9515, Jeddah, 21423, Saudi Arabia.
| | - Anthony Evans
- Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, The University of Liverpool, Liverpool, UK
| | - Adnan Sheikh
- Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, The University of Liverpool, Liverpool, UK
| | - Lawrence Barerra
- Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, The University of Liverpool, Liverpool, UK
| | - Suliman Al-Ghamdi
- King Abdullah International Medical Research Centre, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, P. O. Box 9515, Jeddah, 21423, Saudi Arabia
| | - Lucy Oldfield
- Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, The University of Liverpool, Liverpool, UK
| | - W Greenhalf
- Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, The University of Liverpool, Liverpool, UK
| | - John P Neoptolemos
- Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, The University of Liverpool, Liverpool, UK
| | - Eithne Costello
- Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, The University of Liverpool, Liverpool, UK
| |
Collapse
|
38
|
Lee J, Mun S, Kim D, Lee YR, Sheen DH, Ihm C, Lee SH, Kang HG. Proteomics Analysis for Verification of Rheumatoid Arthritis Biomarker Candidates Using Multiple Reaction Monitoring. Proteomics Clin Appl 2018; 13:e1800011. [PMID: 30230224 DOI: 10.1002/prca.201800011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 09/07/2018] [Indexed: 11/08/2022]
Abstract
PURPOSE Rheumatoid arthritis (RA) is an autoimmune disease in which autoantibodies attack the synovial membrane, causing joint inflammation. Blood tests would offer a powerful, minimally invasive method for early diagnosis of RA. However, no reliable biomarkers for RA are presently available. The aim is to develop biomarkers for RA by multiple reaction monitoring (MRM)-based quantification of candidate biomarkers. EXPERIMENTAL DESIGN Proteomics approaches are commonly used to identify and verify disease biomarkers. For discovery of biomarkers for RA, SWATH acquisition is performed and selected candidate biomarkers are validated by MRM. Target serum proteins are compared between patients with RA and healthy controls divided into three groups based on rheumatoid factor level. RESULTS A total of 45 differentially expressed proteins are identified, as determined by SWATH acquisition. Of these, 13 proteins are selected as novel candidate biomarkers. A total of five proteins (transthyretin, gelsolin, angiotensinogen, lipopolysaccharide-binding protein, and protein S100-A9) are shown to have the potential to distinguish patients with RA from healthy controls. CONCLUSIONS AND CLINICAL RELEVANCE These five proteins may improve the efficiency of diagnosis of RA. MRM can be used to easily diagnose RA by detecting five proteins simultaneously in a single sample with high sensitivity.
Collapse
Affiliation(s)
- Jiyeong Lee
- Department of Biomedical Laboratory Science, College of Health Sciences, Eulji University, Seongnam, 13135, Korea
| | - Sora Mun
- Department of Senior Healthcare, BK21 Plus Program, Graduate School, Eulji University, Seongnam, 13135, Korea
| | - Doojin Kim
- Department of Biomedical Laboratory Science, College of Health Sciences, Eulji University, Seongnam, 13135, Korea
| | - You-Rim Lee
- Department of Senior Healthcare, BK21 Plus Program, Graduate School, Eulji University, Seongnam, 13135, Korea
| | - Dong-Hyuk Sheen
- Division of Rheumatology, Department of Medicine, Eulji University School of Medicine, Daejeon, 35233, Korea
| | - Chunhwa Ihm
- Department of Laboratory Medicine, Eulji University Hospital, Daejeon, 35233, Korea
| | - Seung Hoon Lee
- Department of Neurosurgery, Eulji University School of Medicine, Daejeon, 35233, Korea
| | - Hee-Gyoo Kang
- Department of Biomedical Laboratory Science, College of Health Sciences, Eulji University, Seongnam, 13135, Korea.,Department of Senior Healthcare, BK21 Plus Program, Graduate School, Eulji University, Seongnam, 13135, Korea
| |
Collapse
|
39
|
Nishida M, Saegusa J, Tanaka S, Morinobu A. S100A12 facilitates osteoclast differentiation from human monocytes. PLoS One 2018; 13:e0204140. [PMID: 30235276 PMCID: PMC6147475 DOI: 10.1371/journal.pone.0204140] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 09/03/2018] [Indexed: 12/29/2022] Open
Abstract
Osteoclasts play a critical role not only in bone homeostasis but also in inflammatory osteolysis, such as that occurring in inflammatory arthritis and systemic inflammation. In both inflammation conditions, inflammatory cytokines like Interleukin (IL)-1, IL-6 and tumor necrosis factor (TNF)-α induce RANKL expression in osteoblasts, but the roles of these cytokines in osteoclast activation remain unclear. S100A12, an S100 family member, is a low-molecular-weight calcium-binding protein. Although it has a pro-inflammatory role, its effects on osteoclast differentiation have been unclear. Here we examined the direct effects of S100A12 on human osteoclasts in vitro. S100A12 facilitated osteoclast formation in the presence of RANKL, as judged by the cells’ morphology and elevated expression of osteoclast-related molecules, including NFATc1, ACP5, CALCR, and ITGβ3. In addition, S100A12 administration markedly enhanced the osteoclasts’ bone resorption ability, consistent with their increased expression levels of CTSK and CA2. Blocking RAGE and TLR4 cancelled the effects of S100A12. Our results indicate that S100A12 is a potential therapeutic target for inflammatory osteolysis.
Collapse
Affiliation(s)
- Miwa Nishida
- Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Chuo-ku, Kobe, Japan
- The Center for Rheumatic Diseases, Shinko Hospital, Chuo-ku, Kobe, Japan
| | - Jun Saegusa
- Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Chuo-ku, Kobe, Japan
- Clinical Laboratory, Kobe University Hospital, Chuo-ku, Kobe, Japan
| | - Shino Tanaka
- Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Chuo-ku, Kobe, Japan
| | - Akio Morinobu
- Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Chuo-ku, Kobe, Japan
- * E-mail:
| |
Collapse
|
40
|
Tammaro A, Florquin S, Brok M, Claessen N, Butter LM, Teske GJD, de Boer OJ, Vogl T, Leemans JC, Dessing MC. S100A8/A9 promotes parenchymal damage and renal fibrosis in obstructive nephropathy. Clin Exp Immunol 2018; 193:361-375. [PMID: 29746703 PMCID: PMC6150262 DOI: 10.1111/cei.13154] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2018] [Indexed: 12/11/2022] Open
Abstract
Despite advances in our understanding of the mechanisms underlying the progression of chronic kidney disease and the development of fibrosis, only limited efficacious therapies exist. The calcium binding protein S100A8/A9 is a damage-associated molecular pattern which can activate Toll-like receptor (TLR)-4 or receptor for advanced glycation end-products (RAGE). Activation of these receptors is involved in the progression of renal fibrosis; however, the role of S100A8/A9 herein remains unknown. Therefore, we analysed S100A8/A9 expression in patients and mice with obstructive nephropathy and subjected wild-type and S100A9 knock-out mice lacking the heterodimer S100A8/A9 to unilateral ureteral obstruction (UUO). We found profound S100A8/A9 expression in granulocytes that infiltrated human and murine kidney, together with enhanced renal expression over time, following UUO. S100A9 KO mice were protected from UUO-induced renal fibrosis, independently of leucocyte infiltration and inflammation. Loss of S100A8/A9 protected tubular epithelial cells from UUO-induced apoptosis and critical epithelial-mesenchymal transition steps. In-vitro studies revealed S100A8/A9 as a novel mediator of epithelial cell injury through loss of cell polarity, cell cycle arrest and subsequent cell death. In conclusion, we demonstrate that S100A8/A9 mediates renal damage and fibrosis, presumably through loss of tubular epithelial cell contacts and irreversible damage. Suppression of S100A8/A9 could be a therapeutic strategy to halt renal fibrosis in patients with chronic kidney disease.
Collapse
Affiliation(s)
- A. Tammaro
- Department of PathologyAmsterdam UMC, Univ(ersity) of AmsterdamAmsterdamthe Netherlands
| | - S. Florquin
- Department of PathologyAmsterdam UMC, Univ(ersity) of AmsterdamAmsterdamthe Netherlands
| | - M. Brok
- Department of PathologyAmsterdam UMC, Univ(ersity) of AmsterdamAmsterdamthe Netherlands
| | - N. Claessen
- Department of PathologyAmsterdam UMC, Univ(ersity) of AmsterdamAmsterdamthe Netherlands
| | - L. M. Butter
- Department of PathologyAmsterdam UMC, Univ(ersity) of AmsterdamAmsterdamthe Netherlands
| | - G. J. D. Teske
- Department of PathologyAmsterdam UMC, Univ(ersity) of AmsterdamAmsterdamthe Netherlands
| | - O. J. de Boer
- Department of PathologyAmsterdam UMC, Univ(ersity) of AmsterdamAmsterdamthe Netherlands
| | - T. Vogl
- Institute of ImmunologyUniversity of MünsterMünsterGermany
| | - J. C. Leemans
- Department of PathologyAmsterdam UMC, Univ(ersity) of AmsterdamAmsterdamthe Netherlands
| | - M. C. Dessing
- Department of PathologyAmsterdam UMC, Univ(ersity) of AmsterdamAmsterdamthe Netherlands
| |
Collapse
|
41
|
|
42
|
Holmström SB, Lira-Junior R, Zwicker S, Majster M, Gustafsson A, Åkerman S, Klinge B, Svensson M, Boström EA. MMP-12 and S100s in saliva reflect different aspects of periodontal inflammation. Cytokine 2018; 113:155-161. [PMID: 29983358 DOI: 10.1016/j.cyto.2018.06.036] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 06/28/2018] [Accepted: 06/30/2018] [Indexed: 01/07/2023]
Abstract
Matrix metalloproteinase (MMP)-12, S100A8/A9, and S100A12 are involved in innate immune responses. We addressed whether different aspects of oral health and non-disease-related covariates influence their levels in saliva. 436 participants were clinically examined, completed a health questionnaire, and provided stimulated saliva. Salivary levels of MMP-12, S100A8/A9, and S100A12 were determined by enzyme-linked immunosorbent assays. Lower MMP-12 levels were observed in individuals 40-64 years old (yo) compared to < 40 yo, and higher S100A8/A9 levels were found in individuals > 64 yo compared to 40-64 yo. Smokers exhibited lower MMP-12 and S100A12 levels compared to non-smokers. All three proteins were elevated in individuals with bleeding on probing (BOP) > 20% compared to those with BOP ≤ 20%, and the S100A8/A9 levels were higher in individuals having ≥ 10% gingival pocket depths (PPD) ≥ 4 mm compared to the ones with shallow pockets < 4 mm. The extent of alveolar bone loss or presence of manifest caries did not alter any of the markers. MMP-12, S100A8/A9, and S100A12 levels were higher in participants with high periodontal inflammatory burden. All three proteins correlated positively to BOP, PPD, and to several inflammatory mediators. The explanatory variables for MMP-12 in saliva were age, smoking, presence of any tumor, and percentage of PPD ≥ 4 mm. The determinant of salivary S100A8/A9 was percentage of BOP, while S100A12 levels were associated with percentage of BOP and presence of any tumor. Taken together, MMP-12 and the S100/calgranulin levels in saliva reflect different aspects of periodontal inflammation. Smoking and age should be taken into account in further investigation of these proteins as biomarker candidates of periodontal disease.
Collapse
Affiliation(s)
- Sofia Björnfot Holmström
- Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden; Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ronaldo Lira-Junior
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden; Department of Periodontology, Faculty of Odontology, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Stephanie Zwicker
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Mirjam Majster
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Anders Gustafsson
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Sigvard Åkerman
- Department of Oral Diagnostics, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Björn Klinge
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden; Department of Periodontology, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Mattias Svensson
- Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Elisabeth A Boström
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden.
| |
Collapse
|
43
|
Chen D, Sahin A, Kam WR, Liu Y, Darabad RR, Sullivan DA. Influence of lipopolysaccharide on proinflammatory gene expression in human corneal, conjunctival and meibomian gland epithelial cells. Ocul Surf 2018; 16:382-389. [PMID: 29763693 DOI: 10.1016/j.jtos.2018.05.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 04/13/2018] [Accepted: 05/11/2018] [Indexed: 01/23/2023]
Abstract
PURPOSE Lipopolysaccharide (LPS), a bacterial endotoxin, is known to stimulate leuokotriene B4 (LTB4) secretion by human corneal (HCECs), conjunctival (HConjECs) and meibomian gland (HMGECs) epithelial cells. We hypothesize that this LTB4 effect represents an overall induction of proinflammatory gene expression in these cells. Our objective was to test this hypothesis. METHODS Immortalized HCECs, HConjECs and HMGECs were cultured in the presence or absence of LPS (15 μg/ml) and ligand binding protein (LBP; 150 ng/ml). Cells were then processed for RNA isolation and the analysis of gene expression by using Illumina BeadChips, background subtraction, cubic spline normalization and GeneSifter software. RESULTS Our findings show that LPS induces a striking increase in proinflammatory gene expression in HCECs and HConjECs. These cellular reactions are associated with a significant up-regulation of genes associated with inflammatory and immune responses (e.g. IL-1β, IL-8, and tumor necrosis factor), including those related to chemokine and Toll-like receptor signaling pathways, cytokine-cytokine receptor interactions, and chemotaxis. In contrast, with the exception of Toll-like signaling and associated innate immunity pathways, almost no proinflammatory ontologies were upregulated by LPS in HMGECs. CONCLUSIONS Our results support our hypothesis that LPS stimulates proinflammatory gene expression in HCECs and HConjECs. However, our findings also show that LPS does not elicit such proinflammatory responses in HMGECs.
Collapse
Affiliation(s)
- Di Chen
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; Department of Ophthalmology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
| | - Afsun Sahin
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; Department of Ophthalmology, Koc University Medical School, Istanbul, Turkey
| | - Wendy R Kam
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Yang Liu
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Raheleh Rahimi Darabad
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA; Department of Clinical Anesthesia, Indiana University School of Medicine, Indianapolis, IN, USA
| | - David A Sullivan
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| |
Collapse
|
44
|
|
45
|
Inoue H, Shirakawa J, Togashi Y, Tajima K, Okuyama T, Kyohara M, Tanaka Y, Orime K, Saisho Y, Yamada T, Shibue K, Kulkarni RN, Terauchi Y. Signaling between pancreatic β cells and macrophages via S100 calcium-binding protein A8 exacerbates β-cell apoptosis and islet inflammation. J Biol Chem 2018; 293:5934-5946. [PMID: 29496993 DOI: 10.1074/jbc.m117.809228] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Revised: 02/27/2018] [Indexed: 12/13/2022] Open
Abstract
Chronic low-grade inflammation in the pancreatic islets is observed in individuals with type 2 diabetes, and macrophage levels are elevated in the islets of these individuals. However, the molecular mechanisms underlying the interactions between the pancreatic β cells and macrophages and their involvement in inflammation are not fully understood. Here, we investigated the role of S100 calcium-binding protein A8 (S100A8), a member of the damage-associated molecular pattern molecules (DAMPs), in β-cell inflammation. Co-cultivation of pancreatic islets with unstimulated peritoneal macrophages in the presence of palmitate (to induce lipotoxicity) and high glucose (to induce glucotoxicity) synergistically increased the expression and release of islet-produced S100A8 in a Toll-like receptor 4 (TLR4)-independent manner. Consistently, a significant increase in the expression of the S100a8 gene was observed in the islets of diabetic db/db mice. Furthermore, the islet-derived S100A8 induced TLR4-mediated inflammatory cytokine production by migrating macrophages. When human islet cells were co-cultured with U937 human monocyte cells, the palmitate treatment up-regulated S100A8 expression. This S100A8-mediated interaction between islets and macrophages evoked β-cell apoptosis, which was ameliorated by TLR4 inhibition in the macrophages or S100A8 neutralization in the pancreatic islets. Of note, both glucotoxicity and lipotoxicity triggered S100A8 secretion from the pancreatic islets, which in turn promoted macrophage infiltration of the islets. Taken together, a positive feedback loop between islet-derived S100A8 and macrophages drives β-cell apoptosis and pancreatic islet inflammation. We conclude that developing therapeutic approaches to inhibit S100A8 may serve to prevent β-cell loss in patients with diabetes.
Collapse
Affiliation(s)
- Hideaki Inoue
- From the Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, 3-9 Fuku-ura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Jun Shirakawa
- From the Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, 3-9 Fuku-ura, Kanazawa-ku, Yokohama 236-0004, Japan,
| | - Yu Togashi
- From the Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, 3-9 Fuku-ura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Kazuki Tajima
- From the Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, 3-9 Fuku-ura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Tomoko Okuyama
- From the Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, 3-9 Fuku-ura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Mayu Kyohara
- From the Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, 3-9 Fuku-ura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Yui Tanaka
- From the Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, 3-9 Fuku-ura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Kazuki Orime
- From the Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, 3-9 Fuku-ura, Kanazawa-ku, Yokohama 236-0004, Japan.,the Section of Islet Cell and Regenerative Biology, Joslin Diabetes Center, Department of Medicine, Brigham and Women's Hospital, Harvard Stem Cell Institute, Harvard Medical School, Boston, Massachusetts 02138
| | | | - Taketo Yamada
- Pathology, School of Medicine, Keio University, Tokyo 108-8345, Japan, and
| | - Kimitaka Shibue
- the Section of Islet Cell and Regenerative Biology, Joslin Diabetes Center, Department of Medicine, Brigham and Women's Hospital, Harvard Stem Cell Institute, Harvard Medical School, Boston, Massachusetts 02138
| | - Rohit N Kulkarni
- the Section of Islet Cell and Regenerative Biology, Joslin Diabetes Center, Department of Medicine, Brigham and Women's Hospital, Harvard Stem Cell Institute, Harvard Medical School, Boston, Massachusetts 02138
| | - Yasuo Terauchi
- From the Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, 3-9 Fuku-ura, Kanazawa-ku, Yokohama 236-0004, Japan,
| |
Collapse
|
46
|
Xia C, Braunstein Z, Toomey AC, Zhong J, Rao X. S100 Proteins As an Important Regulator of Macrophage Inflammation. Front Immunol 2018; 8:1908. [PMID: 29379499 PMCID: PMC5770888 DOI: 10.3389/fimmu.2017.01908] [Citation(s) in RCA: 240] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 12/14/2017] [Indexed: 12/17/2022] Open
Abstract
The S100 proteins, a family of calcium-binding cytosolic proteins, have a broad range of intracellular and extracellular functions through regulating calcium balance, cell apoptosis, migration, proliferation, differentiation, energy metabolism, and inflammation. The intracellular functions of S100 proteins involve interaction with intracellular receptors, membrane protein recruitment/transportation, transcriptional regulation and integrating with enzymes or nucleic acids, and DNA repair. The S100 proteins could also be released from the cytoplasm, induced by tissue/cell damage and cellular stress. The extracellular S100 proteins, serving as a danger signal, are crucial in regulating immune homeostasis, post-traumatic injury, and inflammation. Extracellular S100 proteins are also considered biomarkers for some specific diseases. In this review, we will discuss the multi-functional roles of S100 proteins, especially their potential roles associated with cell migration, differentiation, tissue repair, and inflammation.
Collapse
Affiliation(s)
- Chang Xia
- College of Health Science and Nursing, Wuhan Polytechnic University, Wuhan, China.,Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH, United States
| | - Zachary Braunstein
- Boonshoft School of Medicine, Wright State University, Dayton, OH, United States
| | - Amelia C Toomey
- Department of Health Sciences, University of Missouri, Columbia, MO, United States
| | - Jixin Zhong
- Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH, United States
| | - Xiaoquan Rao
- Cardiovascular Research Institute, Case Western Reserve University, Cleveland, OH, United States
| |
Collapse
|
47
|
Abstract
The receptor for advanced glycation end-products (RAGE) is a multiligand pattern recognition receptor implicated in diverse chronic inflammatory states. RAGE binds and mediates the cellular response to a range of damage-associated molecular pattern molecules (DAMPs) including AGEs, HMGB1, S100s, and DNA. RAGE can also act as an innate immune sensor of microbial pathogen-associated molecular pattern molecules (PAMPs) including bacterial endotoxin, respiratory viruses, and microbial DNA. RAGE is expressed at low levels under normal physiology, but it is highly upregulated under chronic inflammation because of the accumulation of various RAGE ligands. Blocking RAGE signaling in cell and animal models has revealed that targeting RAGE impairs inflammation and progression of diabetic vascular complications, cardiovascular disease (CVD), and cancer progression and metastasis. The clinical relevance of RAGE in inflammatory disease is being demonstrated in emerging clinical trials of novel small-molecule RAGE inhibitors.
Collapse
Affiliation(s)
- Barry I Hudson
- Department of Cell Biology, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida 33136, USA; .,University of Miami Sylvester Comprehensive Cancer Center, Miami, Florida 33136, USA
| | - Marc E Lippman
- University of Miami Sylvester Comprehensive Cancer Center, Miami, Florida 33136, USA.,Department of Medicine, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida 33136, USA;
| |
Collapse
|
48
|
Cremers NAJ, van den Bosch MHJ, van Dalen S, Di Ceglie I, Ascone G, van de Loo F, Koenders M, van der Kraan P, Sloetjes A, Vogl T, Roth J, Geven EJW, Blom AB, van Lent PLEM. S100A8/A9 increases the mobilization of pro-inflammatory Ly6C high monocytes to the synovium during experimental osteoarthritis. Arthritis Res Ther 2017; 19:217. [PMID: 28969686 PMCID: PMC5623958 DOI: 10.1186/s13075-017-1426-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 09/11/2017] [Indexed: 02/09/2023] Open
Abstract
BACKGROUND Monocytes are dominant cells present within the inflamed synovium during osteoarthritis (OA). In mice, two functionally distinct monocyte subsets are described: pro-inflammatory Ly6Chigh and patrolling Ly6Clow monocytes. Alarmins S100A8/A9 locally released by the synovium during inflammatory OA for prolonged periods may be dominant proteins involved in stimulating recruitment of Ly6Chigh monocytes from the circulation to the joint. Our objective was to investigate the role of S100A8/A9 in the mobilization of Ly6Chigh and Ly6Clow monocytic populations to the inflamed joint in collagenase-induced OA (CiOA). METHOD S100A8 was injected intra-articularly to investigate monocyte influx. CiOA was induced by injection of collagenase into knee joints of wild-type C57BL/6 (WT), and S100a9-/- mice. Mice were sacrificed together with age-matched saline-injected control mice (n = 6/group), and expression of monocyte markers, pro-inflammatory cytokines, and chemokines was determined in the synovium using ELISA and RT-qPCR. Cells were isolated from the bone marrow (BM), spleen, blood, and synovium and monocytes were identified using FACS. RESULTS S100A8/A9 was highly expressed during CiOA. Intra-articular injection of S100A8 leads to elevated expression of monocyte markers and the monocyte-attracting chemokines CCL2 and CX3CL1 in the synovium. At day 7 (d7) after CiOA induction in WT mice, numbers of Ly6Chigh, but not Ly6Clow monocytes, were strongly increased (7.6-fold) in the synovium compared to saline-injected controls. This coincided with strong upregulation of CCL2, which preferentially attracts Ly6Chigh monocytes. In contrast, S100a9-/- mice showed a significant increase in Ly6Clow monocytes (twofold) within the synovium at CiOA d7, whereas the number of Ly6Chigh monocytes remained unaffected. In agreement with this finding, the Ly6Clow mobilization marker CX3CL1 was significantly higher within the synovium of S100a9-/- mice. Next, we studied the effect of S100A8/A9 on release of Ly6Chigh monocytes from the BM into the circulation. A 14% decrease in myeloid cells was found in WT BM at CiOA d7. No decrease in myeloid cells in S100a9-/- BM was found, suggesting that S100A8/A9 promotes the release of myeloid populations from the BM. CONCLUSION Induction of OA locally leads to strongly elevated S100A8/A9 expression and an elevated influx of Ly6Chigh monocytes from the BM to the synovium.
Collapse
Affiliation(s)
- Niels A J Cremers
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands
| | - Martijn H J van den Bosch
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands
| | - Stephanie van Dalen
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands
| | - Irene Di Ceglie
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands
| | - Giuliana Ascone
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands
| | - Fons van de Loo
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands
| | - Marije Koenders
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands
| | - Peter van der Kraan
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands
| | - Annet Sloetjes
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands
| | - Thomas Vogl
- Institute of Immunology, University of Munster, Munster, Germany
| | - Johannes Roth
- Institute of Immunology, University of Munster, Munster, Germany
| | - Edwin J W Geven
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands
| | - Arjen B Blom
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands
| | - Peter L E M van Lent
- Experimental Rheumatology, Department of Rheumatology, Radboud University Medical Center, PO Box 9101, Nijmegen, 6500 HB, The Netherlands.
| |
Collapse
|
49
|
王 娟, 李 磊, 罗 海, 姜 勇. [Expressions of inflammatory cytokines in mouse peritoneal macrophages induced by MRP8/MRP14 in vitro]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2017; 37:1164-1170. [PMID: 28951356 PMCID: PMC6765494 DOI: 10.3969/j.issn.1673-4254.2017.09.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate MRP8/MRP14-induced expression of inflammatory cytokines in mouse peritoneal macrophages and explore the mechanism. METHODS Tumor necrosis factor-α (TNF-α), interferon-γ inducible protein 10 (IP-10), interleukin-2 (IL-2), IL-6, IL-5 and interferon-γ (IFN-γ) proteins in the culture supernatants of mouse peritoneal macrophages treated with recombinant MRP8/MRP14 were quantified using Luminex xMAP system. TNF-α, IP-10 and IL-6 levels were detected in the culture supernatants of the peritoneal macrophages after treatment with different domains of MRP14. Western blotting was used to detect the phosphorylation of p38 MAPK, JNK and ERK in the cells after MRP8/MRP14 treatment. The effects of p38 MAPK, JNK, ERK inhibitors, TLR4 or RAGE receptor antagonists on MRP8/MRP14-induced expressions of TNF-α, IP-10 and IL-6 were tested. RESULTS MRP8/MRP14 significantly increased TNF-α, IP-10 and IL-6 levels in mouse peritoneal macrophages by 98.2, 378.6 and 6.3 folds (P<0.01), respectively, but did not obviously affect IL-2, IL-5 and IFN-α levels. MRP14 protein and its calcium binding motifs such as EF hand-1, EF hand-2, EF hand-1+2, but not CT terminal domain, all induced TNF-α, IP-10 and IL-6 expressions (P<0.01). Phosphorylation of p38 MAPK, JNK and ERK were detected by Western blotting in the cells at 1 h after MRP8/MRP14 stimulation and sustained to 2 h. Compared with MRP8/MRP14, SB203580 (p38 MAPK inhibitor) significantly inhibited TNF-α, IP-10 and IL-6 expression (P<0.05), and SP600125 (JNK inhibitor) inhibited the expression of TNF-α and IP-10 (P<0.05) but not IL-6, PD98059 and U0126 (ERK and MEK1/2 inhibitor) reduced IL-6 expression (P<0.05). TNF-α, IP-10 and IL-6 levels were inhibited by TAK242 (P<0.05); IL-6 level in the cells was also partially inhibited by RAGE neutralizing antibody (P<0.05). CONCLUSION MRP8/MRP14 can induce the expression of TNF-α, IP-10 and IL-6 in mouse peritoneal macrophages. MRP14 protein, which contain calcium binding motifs, has the biological activity of inducing cytokine expression. TNF-α and IP-10 expressions are related with TLR4 and its downstream p38 MAPKs and JNK; IL-6 is regulated by both TLR4 and RAGE and their downstream p38 MAPKs and ERK.
Collapse
Affiliation(s)
- 娟 王
- />南方医科大学病理生理学教研室//广东省蛋白质组学重点实验室,广东 广州 510515Department of Pathophysiology and Key Laboratory of Functional Proteomics of Guangdong Province, Southern Medical University, Guangzhou 510515, China
| | - 磊 李
- />南方医科大学病理生理学教研室//广东省蛋白质组学重点实验室,广东 广州 510515Department of Pathophysiology and Key Laboratory of Functional Proteomics of Guangdong Province, Southern Medical University, Guangzhou 510515, China
| | - 海华 罗
- />南方医科大学病理生理学教研室//广东省蛋白质组学重点实验室,广东 广州 510515Department of Pathophysiology and Key Laboratory of Functional Proteomics of Guangdong Province, Southern Medical University, Guangzhou 510515, China
| | - 勇 姜
- />南方医科大学病理生理学教研室//广东省蛋白质组学重点实验室,广东 广州 510515Department of Pathophysiology and Key Laboratory of Functional Proteomics of Guangdong Province, Southern Medical University, Guangzhou 510515, China
| |
Collapse
|
50
|
Bron AJ, de Paiva CS, Chauhan SK, Bonini S, Gabison EE, Jain S, Knop E, Markoulli M, Ogawa Y, Perez V, Uchino Y, Yokoi N, Zoukhri D, Sullivan DA. TFOS DEWS II pathophysiology report. Ocul Surf 2017; 15:438-510. [PMID: 28736340 DOI: 10.1016/j.jtos.2017.05.011] [Citation(s) in RCA: 965] [Impact Index Per Article: 137.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 05/26/2017] [Indexed: 12/18/2022]
Abstract
The TFOS DEWS II Pathophysiology Subcommittee reviewed the mechanisms involved in the initiation and perpetuation of dry eye disease. Its central mechanism is evaporative water loss leading to hyperosmolar tissue damage. Research in human disease and in animal models has shown that this, either directly or by inducing inflammation, causes a loss of both epithelial and goblet cells. The consequent decrease in surface wettability leads to early tear film breakup and amplifies hyperosmolarity via a Vicious Circle. Pain in dry eye is caused by tear hyperosmolarity, loss of lubrication, inflammatory mediators and neurosensory factors, while visual symptoms arise from tear and ocular surface irregularity. Increased friction targets damage to the lids and ocular surface, resulting in characteristic punctate epithelial keratitis, superior limbic keratoconjunctivitis, filamentary keratitis, lid parallel conjunctival folds, and lid wiper epitheliopathy. Hybrid dry eye disease, with features of both aqueous deficiency and increased evaporation, is common and efforts should be made to determine the relative contribution of each form to the total picture. To this end, practical methods are needed to measure tear evaporation in the clinic, and similarly, methods are needed to measure osmolarity at the tissue level across the ocular surface, to better determine the severity of dry eye. Areas for future research include the role of genetic mechanisms in non-Sjögren syndrome dry eye, the targeting of the terminal duct in meibomian gland disease and the influence of gaze dynamics and the closed eye state on tear stability and ocular surface inflammation.
Collapse
Affiliation(s)
- Anthony J Bron
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK; Vision and Eye Research Unit, Anglia Ruskin University, Cambridge, UK.
| | - Cintia S de Paiva
- Department of Ophthalmology, Baylor College of Medicine, Houston, TX, USA
| | - Sunil K Chauhan
- Schepens Eye Research Institute & Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - Stefano Bonini
- Department of Ophthalmology, University Campus Biomedico, Rome, Italy
| | - Eric E Gabison
- Department of Ophthalmology, Fondation Ophtalmologique Rothschild & Hôpital Bichat Claude Bernard, Paris, France
| | - Sandeep Jain
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Erich Knop
- Departments of Cell and Neurobiology and Ocular Surface Center Berlin, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Maria Markoulli
- School of Optometry and Vision Science, University of New South Wales, Sydney, Australia
| | - Yoko Ogawa
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Victor Perez
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami, Miami, FL, USA
| | - Yuichi Uchino
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Norihiko Yokoi
- Department of Ophthalmology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Driss Zoukhri
- Tufts University School of Dental Medicine, Boston, MA, USA
| | - David A Sullivan
- Schepens Eye Research Institute & Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
| |
Collapse
|