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Fan Y, Xu Y, Huo Z, Zhang H, Peng L, Jiang X, Thomson AW, Dai H. Role of triggering receptor expressed on myeloid cells-1 in kidney diseases: A biomarker and potential therapeutic target. Chin Med J (Engl) 2024; 137:1663-1673. [PMID: 38809056 PMCID: PMC11268828 DOI: 10.1097/cm9.0000000000003197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Indexed: 05/30/2024] Open
Abstract
ABSTRACT Triggering receptor expressed on myeloid cells-1 (TREM-1) is a member of the immunoglobulin superfamily. As an amplifier of the inflammatory response, TREM-1 is mainly involved in the production of inflammatory mediators and the regulation of cell survival. TREM-1 has been studied in infectious diseases and more recently in non-infectious disorders. More and more studies have shown that TREM-1 plays an important pathogenic role in kidney diseases. There is evidence that TREM-1 can not only be used as a biomarker for diagnosis of disease but also as a potential therapeutic target to guide the development of novel therapeutic agents for kidney disease. This review summarized molecular biology of TREM-1 and its signaling pathways as well as immune response in the progress of acute kidney injury, renal fibrosis, diabetic nephropathy, immune nephropathy, and renal cell carcinoma.
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Affiliation(s)
- Yuxi Fan
- Department of Immunology, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China
- Department of Kidney Transplantation, Center of Organ Transplantation, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
| | - Ye Xu
- Department of Kidney Transplantation, Center of Organ Transplantation, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
- Medical College of Guangxi University, Nanning, Guangxi 530004, China
| | - Zhi Huo
- Department of Immunology, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China
| | - Hedong Zhang
- Department of Kidney Transplantation, Center of Organ Transplantation, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
| | - Longkai Peng
- Department of Kidney Transplantation, Center of Organ Transplantation, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
| | - Xin Jiang
- Department of Organ Transplantation, The Fifth Clinical Medical College of Henan University of Chinese Medicine (Zhengzhou People’s Hospital), Zhengzhou, Henan 450000, China
| | - Angus W. Thomson
- Department of Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Helong Dai
- Department of Kidney Transplantation, Center of Organ Transplantation, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
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Yue C, Wang W, Gao S, Ye J, Zhang T, Xing Z, Xie Y, Qian H, Zhou X, Li S, Yu A, Wang L, Wang J, Hua C. Agomir miRNA-150-5p alleviates pristane-induced lupus by suppressing myeloid dendritic cells activation and inflammation via TREM-1 axis. Inflamm Res 2023:10.1007/s00011-023-01754-8. [PMID: 37326693 DOI: 10.1007/s00011-023-01754-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/12/2023] [Accepted: 05/30/2023] [Indexed: 06/17/2023] Open
Abstract
OBJECTIVE Triggering receptors expressed on myeloid cells-1 (TREM-1) has been shown to participate in inflammatory autoimmune diseases. Nevertheless, the detailed underlying mechanisms and therapeutic benefits by targeting TREM-1 remain elusive, especially in myeloid dendritic cells (mDCs) and systemic lupus erythematosus (SLE). Disorders of epigenetic processes including non-coding RNAs give rise to SLE, resulting in complicated syndromes. Here, we aim to address this issue and explore the miRNA to inhibit the activation of mDCs and alleviate the progress of SLE by targeting TREM-1 signal axis. METHODS Bioinformatics methods were used to analyze the differentially expressed genes (DEGs) between patients with SLE and healthy individuals by four mRNA microarray datasets from Gene Expression Omnibus (GEO). Then we identified the expression of TREM-1 and its soluble form (sTREM-1) in clinical samples by ELISA, quantitative real-time PCR and Western blot. Phenotypic and functional changes of mDCs elicited by TREM-1 agonist were determined. Three databases of miRNAs target prediction and a dual-luciferase reporter assay were used to screen and verify miRNAs that can directly inhibit TREM-1 expression in vitro. Moreover, pristane-induced lupus mice were injected with miR-150-5p agomir to evaluate the effects of miR-150-5p on mDCs in lymphatic organs and disease activity in vivo. RESULTS We screened TREM-1 as one of the hub genes closely correlated with the progression of SLE and identified sTREM-1 in serum as a valuable diagnostic biomarker for SLE. Moreover, activation of TREM-1 by its agonist promoted activation and chemotaxis of mDCs and increased the production of inflammatory cytokines and chemokines, showing higher expression of IL-6, TNF-α, and MCP-1. We showed that lupus mice displayed a unique miRNA signature in spleen, among which miR-150 was the most significantly expressed miRNA that targeting TREM-1 compared with wild type group. Transfection of miRNA-150-5p mimics directly suppressed the expression of TREM-1 by binding to its 3' UTR. Our in vivo experiments first indicated that administration of miR-150-5p agomir effectively ameliorated lupus symptoms. Intriguingly, miR-150 inhibited the over activation of mDCs through TREM-1 signal pathway in lymphatic organs and renal tissues. CONCLUSIONS TREM-1 represents a potentially novel therapeutic target and we identify miR-150-5p as one of the mechanisms to alleviate lupus disease, which is attributable for inhibiting mDCs activation through TREM-1 signaling pathway.
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Affiliation(s)
- Chenran Yue
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China
| | - Wenqian Wang
- Department of Plastic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China
| | - Sheng Gao
- Laboratory Animal Center, Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China
| | - Jianzhong Ye
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China
| | - Ting Zhang
- Department of Rheumatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China
| | - Zhouhang Xing
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China
| | - Yuanyuan Xie
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China
| | - Hengrong Qian
- School of the 2Nd Clinical Medical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China
| | - Xueyin Zhou
- School of the 2Nd Clinical Medical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China
| | - Shuting Li
- School of the 2Nd Clinical Medical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China
| | - Anni Yu
- School of the 2Nd Clinical Medical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China
| | - Liangxing Wang
- Key Laboratory of Heart and Lung, Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China.
| | - Jianguang Wang
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China.
| | - Chunyan Hua
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang Province, China.
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Lu L, Liu X, Fu J, Liang J, Hou Y, Dou H. sTREM-1 promotes the phagocytic function of microglia to induce hippocampus damage via the PI3K-AKT signaling pathway. Sci Rep 2022; 12:7047. [PMID: 35487953 PMCID: PMC9054830 DOI: 10.1038/s41598-022-10973-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 04/15/2022] [Indexed: 12/18/2022] Open
Abstract
Soluble triggering receptor expressed on myeloid cells-1 (sTREM-1) is a soluble form of TREM-1 released during inflammation. Elevated sTREM-1 levels have been found in neuropsychiatric systemic lupus erythematosus (NPSLE) patients; yet, the exact mechanisms remain unclear. This study investigated the role of sTREM-1 in brain damage and its underlying mechanism. The sTREM-1 recombinant protein (2.5 μg/3 μL) was injected into the lateral ventricle of C57BL/6 female mice. After intracerebroventricular (ICV) injection, the damage in hippocampal neurons increased, and the loss of neuronal synapses and activation of microglia increased compared to the control mice (treated with saline). In vitro. after sTREM-1 stimulation, the apoptosis of BV2 cells decreased, the polarization of BV2 cells shifted to the M1 phenotype, the phagocytic function of BV2 cells significantly improved, while the PI3K-AKT signal pathway was activated in vivo and in vitro. PI3K-AKT pathway inhibitor LY294002 reversed the excessive activation and phagocytosis of microglia caused by sTREM-1 in vivo and in vitro, which in turn improved the hippocampus damage. These results indicated that sTREM-1 activated the microglial by the PI3K-AKT signal pathway, and promoted its excessive phagocytosis of the neuronal synapse, thus inducing hippocampal damage. sTREM-1 might be a potential target for inducing brain lesions.
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Affiliation(s)
- Li Lu
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, 210093, People's Republic of China.,Jiangsu Key Laboratory of Molecular Medicine, Nanjing, 210093, People's Republic of China
| | - Xuan Liu
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, 210093, People's Republic of China.,Jiangsu Key Laboratory of Molecular Medicine, Nanjing, 210093, People's Republic of China
| | - Juanhua Fu
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, 210093, People's Republic of China.,Jiangsu Key Laboratory of Molecular Medicine, Nanjing, 210093, People's Republic of China
| | - Jun Liang
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China.
| | - Yayi Hou
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, 210093, People's Republic of China. .,Jiangsu Key Laboratory of Molecular Medicine, Nanjing, 210093, People's Republic of China.
| | - Huan Dou
- The State Key Laboratory of Pharmaceutical Biotechnology, Division of Immunology, Medical School, Nanjing University, Nanjing, 210093, People's Republic of China. .,Jiangsu Key Laboratory of Molecular Medicine, Nanjing, 210093, People's Republic of China.
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Liu Y, Wang X, Yang F, Zheng Y, Ye T, Yang L. Immunomodulatory Role and Therapeutic Potential of Non-Coding RNAs Mediated by Dendritic Cells in Autoimmune and Immune Tolerance-Related Diseases. Front Immunol 2021; 12:678918. [PMID: 34394079 PMCID: PMC8360493 DOI: 10.3389/fimmu.2021.678918] [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: 03/10/2021] [Accepted: 07/15/2021] [Indexed: 02/05/2023] Open
Abstract
Dendritic cells (DCs) are professional antigen-presenting cells that act as a bridge between innate immunity and adaptive immunity. After activation, DCs differentiate into subtypes with different functions, at which point they upregulate co-stimulatory molecules and produce various cytokines and chemokines. Activated DCs also process antigens for presentation to T cells and regulate the differentiation and function of T cells to modulate the immune state of the body. Non-coding RNAs, RNA transcripts that are unable to encode proteins, not only participate in the pathological mechanisms of autoimmune-related diseases but also regulate the function of immune cells in these diseases. Accumulating evidence suggests that dysregulation of non-coding RNAs contributes to DC differentiation, functions, and so on, consequently producing effects in various autoimmune diseases. In this review, we summarize the main non-coding RNAs (miRNAs, lncRNAs, circRNAs) that regulate DCs in pathological mechanisms and have tremendous potential to give rise to novel therapeutic targets and strategies for multiple autoimmune diseases and immune tolerance-related diseases.
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Affiliation(s)
- Yifeng Liu
- Department of Gastroenterology and Hepatology, Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoze Wang
- Department of Gastroenterology and Hepatology, Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, West China Hospital, Sichuan University, Chengdu, China
| | - Fan Yang
- Department of Gastroenterology and Hepatology, Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, West China Hospital, Sichuan University, Chengdu, China
| | - Yanyi Zheng
- Department of Gastroenterology and Hepatology, Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, West China Hospital, Sichuan University, Chengdu, China
| | - Tinghong Ye
- Department of Gastroenterology and Hepatology, Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, West China Hospital, Sichuan University, Chengdu, China
| | - Li Yang
- Department of Gastroenterology and Hepatology, Sichuan University-University of Oxford Huaxi Joint Centre for Gastrointestinal Cancer, West China Hospital, Sichuan University, Chengdu, China
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Klein TT, Kohn E, Klin B, Ziv-Baran T, Kozer E, Berkovitch M, Abu Kishk I. sTREM-1 as a diagnostic biomarker for acute appendicitis in children. Asian J Surg 2021; 44:1172-1178. [PMID: 33766532 DOI: 10.1016/j.asjsur.2021.02.025] [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: 12/14/2020] [Revised: 01/13/2021] [Accepted: 02/08/2021] [Indexed: 10/21/2022] Open
Abstract
BACKGROUND The typical history of acute appendicitis is observed in less than 60% of cases. Therefore, searching for a surrogate marker is mandatory. Our goal was to determine whether the soluble triggering receptor expressed on myeloid cells (sTREM-1) is an efficient biomarker for acute appendicitis. METHODS sTREM-1 serum levels were measured in addition to carrying out routine diagnostic tests (urine dipstick, complete blood count and CRP) in children admitted to the Emergency Department with suspected appendicitis. Statistical analysis was performed in order to examine whether sTREM-1 was a significant predictor of appendicitis. RESULTS Fifty three of 134 children enrolled in the study were diagnosed with appendicitis. There was no significant difference in serum sTREM-1 levels (p = 0.111) between children with or without appendicitis (n = 81). Leukocytes, neutrophils and CRP were significantly elevated in the appendicitis group (p < 0.001). The appendix diameter was significantly larger and the Alvarado score significantly higher in the appendicitis group (p < 0.001). CONCLUSION serum sTREM-1 is not a good marker for acute appendicitis. Customary tests in addition to a proper patient history and physical examination are still the most effective methods to diagnose acute appendicitis.
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Affiliation(s)
- Tal Taraboulos Klein
- Pediatric Division, Shamir Medical Center (Assaf Harofeh), Zerifin, Affiliated to the Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Elkana Kohn
- Clinical Pharmacology Unit, Shamir Medical Center (Assaf Harofeh), Zerifin, Affiliated to the Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Baruch Klin
- Pediatric Division, Shamir Medical Center (Assaf Harofeh), Zerifin, Affiliated to the Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Tomer Ziv-Baran
- Department of Epidemiology and Preventive Medicine, School of Public Health, Affiliated to the Sackler School of Medicine Tel-Aviv University, Tel-Aviv, Israel
| | - Eran Kozer
- Pediatric Division, Shamir Medical Center (Assaf Harofeh), Zerifin, Affiliated to the Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Matityahu Berkovitch
- Clinical Pharmacology Unit, Shamir Medical Center (Assaf Harofeh), Zerifin, Affiliated to the Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Ibrahim Abu Kishk
- Pediatric Division, Shamir Medical Center (Assaf Harofeh), Zerifin, Affiliated to the Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
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Matos ADO, Dantas PHDS, Silva-Sales M, Sales-Campos H. TREM-1 isoforms in bacterial infections: to immune modulation and beyond. Crit Rev Microbiol 2021; 47:290-306. [PMID: 33522328 DOI: 10.1080/1040841x.2021.1878106] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The triggering receptor expressed on myeloid cells 1 (TREM-1) is an innate immunity receptor associated with the amplification of inflammation in sterile and non-sterile inflammatory disorders. Since its first description, the two isoforms of the receptor, membrane and soluble (mTREM-1 and sTREM-1, respectively) have been largely explored in the immunopathogenesis of several bacterial diseases and sepsis. The role of the receptor in these scenarios seems to be at least partly dependent on the source/type of bacteria, host and context. As uncontrolled inflammation is a result of several bacterial infections, the inhibition of the receptor has been considered as a promising approach to treat such conditions. Further, sTREM-1 has been explored as a biomarker for diagnosis and/or prognosis of several bacterial diseases. Therefore, this review aims to provide an updated insight into how the receptor influences and is influenced by bacterial infections, highlighting the advances regarding the use/manipulation of TREM-1 isoforms in biomedical research and clinical practice.
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Affiliation(s)
| | | | - Marcelle Silva-Sales
- Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Brazil
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Ugurlu S, Egeli BH, Bolayirli IM, Ozdogan H. Soluble TREM-1 Levels in Familial Mediterranean Fever Related AA-Amyloidosis. Immunol Invest 2020; 50:273-281. [PMID: 32321335 DOI: 10.1080/08820139.2020.1751195] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Objectives: Triggering Receptor Expressed on Myeloid cells-1 (TREM-1) is a monocyte and neutrophil receptor functioning in innate immunity. TREM-1 activity has been studied in various autoimmune diseases such as RA and SLE but there is no data in autoinflammatory pathologies. We studied soluble TREM-1 (sTREM-1) activity in Familial Mediterranean Fever (FMF) cases to evaluate the clinical role of TREM-1 in amyloidosis. Methods: The study includes 62 patients with FMF (42 with amyloidosis) who are regular attendees of a tertiary center for autoinflammatory diseases. For control purposes, 5 patients with AA amyloidosis secondary to other inflammatory diseases, and 20 healthy individuals were also included. Soluble TREM-1 levels were measured using enzyme-linked immunosorbent assay (ELISA). All FMF patients were in an attack-free period during the collection of the blood samples.Results: Soluble TREM-1 levels were found to be significantly higher in the FMF amyloidosis group compared to FMF without amyloidosis group and healthy controls (p = .001 and 0.002). Nevertheless, this difference between sTREM-1 levels was not found among FMF amyloidosis and other AA amyloidosis groups (p = .447) as well as between only FMF patients and healthy controls (p = .532). Soluble TREM-1 levels were found in correlation with creatinine and CRP in the FMF patient group regardless of their amyloidosis diagnosis (r = 0.314, p = .013; r = 0.846, p < .001).Conclusion: TREM-1 seems to be related to renal function rather than disease activity in FMF. Its role as an early diagnostic marker of amyloidosis in FMF complicated with AA amyloidosis should be tested in larger patient groups.
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Affiliation(s)
- Serdal Ugurlu
- Division of Rheumatology, Department of Internal Medicine, Cerrahpasa Medical Faculty, University of Istanbul-Cerrahpasa , Istanbul, Turkey
| | - Bugra Han Egeli
- Cerrahpasa Medical Faculty, University of Istanbul-Cerrahpasa , Istanbul, Turkey
| | - Ibrahim Murat Bolayirli
- Department of Biochemistry, Cerrahpasa Medical Faculty, University of Istanbul-Cerrahpasa , Istanbul, Turkey
| | - Huri Ozdogan
- Division of Rheumatology, Department of Internal Medicine, Cerrahpasa Medical Faculty, University of Istanbul-Cerrahpasa , Istanbul, Turkey
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Ugurlu S, Egeli BH. In Familial Mediterranean Fever, soluble TREM-1 plasma level is higher in case of amyloidosis. Innate Immun 2020; 26:231. [PMID: 32122207 PMCID: PMC7144029 DOI: 10.1177/1753425920908645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Serdal Ugurlu
- Istanbul University-Cerrahpasa, Cerrahpasa Medical School, Turkey
| | - Bugra Han Egeli
- Istanbul University-Cerrahpasa, Cerrahpasa Medical School, Turkey
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Inhibition of Triggering Receptor Expressed on Myeloid Cell-1 Alleviates Acute Gouty Inflammation. Mediators Inflamm 2019; 2019:5647074. [PMID: 31885496 PMCID: PMC6925811 DOI: 10.1155/2019/5647074] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 11/23/2019] [Indexed: 12/02/2022] Open
Abstract
Gout is a prevalent form of aseptic inflammation caused by the deposition of monosodium urate (MSU) crystals in joints or tissues. Triggering receptor expressed on myeloid cell-1 (TREM-1) is a superimmunoglobulin receptor expressed on innate immune cells including granulocytes, monocytes, and macrophages. TREM-1 serves as a link between innate immunity and adaptive immunity, playing a crucial role in regulating inflammation and immune response. The purpose of this study was to investigate the potential role of TREM-1 in THP-1 cells and peripheral blood mononuclear cells (PBMCs) from patients with gouty arthritis (GA). In the current study, we found that the mRNA and protein levels of TREM-1 increased in PBMCs from GA patients and soluble TREM-1 in plasma as well. In addition, an increased level of TREM-1 was observed in THP-1 treated with monosodium urate (MSU) in vitro, along with upregulation of proinflammatory cytokines. Moreover, upon specific inhibition of TREM-1, Toll-like receptor 4 (TLR-4), and myeloid differentiation factor 88 (MyD88), the levels of MyD88 and proinflammatory cytokines were decreased after MSU challenge in THP-1 cells. Interestingly, inhibition of TLR-4 could enhance the effect of TREM-1 inhibitor in MSU-induced inflammation. Taken together, our findings suggested that TREM-1 could accelerate MSU-induced acute inflammation. Inhibition of TREM-1 may provide a new strategy for alleviating acute gouty inflammation.
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Belov BS, Tarasova GM, Muravyeva NV. Role of biomarkers in the diagnosis of bacterial infections in rheumatic diseases. НАУЧНО-ПРАКТИЧЕСКАЯ РЕВМАТОЛОГИЯ 2019. [DOI: 10.14412/1995-4484-2019-333-338] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In modern rheumatology, the problem of differential diagnosis of bacterial infection and active rheumatic process still retains its relevance. At the same time, it is very important to search for a biomarker - the gold standard for the diagnosis of an infection in patients with rheumatic diseases (RDs) in order to rapidly determine a treatment policy. This review analyzes the diagnostic significance and possibility of using some laboratory markers for bacterial infections in modern rheumatology. It emphasizes the importance of a multimarker approach that allows increasing the significance of individual parameters in the diagnosis of infections in RD.
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Affiliation(s)
- B. S. Belov
- V.A. Nasonova Research Institute of Rheumatology
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Sun XG, Duan H, Jing G, Wang G, Hou Y, Zhang M. Inhibition of TREM-1 attenuates early brain injury after subarachnoid hemorrhage via downregulation of p38MAPK/MMP-9 and preservation of ZO-1. Neuroscience 2019; 406:369-375. [PMID: 30910643 DOI: 10.1016/j.neuroscience.2019.03.032] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/13/2019] [Accepted: 03/14/2019] [Indexed: 11/29/2022]
Abstract
Early brain injury (EBI) mainly leads to the poor outcome of subarachnoid hemorrhage (SAH), with which inflammation is closely associated. It was reported that triggering receptor expressed on myeloid cells-1 (TREM-1), a critical inflammatory amplifier, increased in cerebrospinal fluid of SAH patients in our recent research. This study was conducted to examine the effects of TREM-1 inhibition on EBI after experimental SAH (eSAH). The endovascular perforation model of SAH was produced and 120 rats were randomly divided into four groups as sham, SAH + vehicle and SAH + LP17 (1.0 mg/kg and 3.5 mg/kg). The LP17, a selective inhibitor of TREM-1, or vehicle was administered by an intraperitoneal injection 1 h post-modeling. Western blot analysis for TREM-1, p38 mitogen-activated protein kinase (p38MAPK), matrix metalloproteinase-9 (MMP-9) and zonula occludens-1 (ZO-1) was conducted at 24 h post-modeling. EBI was assessed in terms of mortality, neuroscore, brain edema, blood-brain barrier (BBB) disruption in 24 and 72 h. The results showed that TREM-1 was induced in brain after eSAH. Both high dose (3.5 mg/kg) and low dose (1.0 mg/kg) of Lp17 significantly inhibited the induction of TREM-1, but only high dose of LP17 improved neuroscore, brain edema, and BBB disruption which are associated with downregulation of p38MAPK/MMP-9 and subsequent preservation of ZO-1. Overall, the current study provides new evidence that TREM-1 may participate in the pathogenesis of SAH-induced EBI via promoting p38MAPK/MMP-9 activation and ZO-1 degradation, while TREM-1 inhibition attenuated the EBI severity obviously, providing a novel approach for the treatment of EBI.
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Affiliation(s)
- Xin-Gang Sun
- Department of Neurology, the Second Hospital Affiliated to Shanxi Medical University, 382 Wuyi Road, Taiyuan, Shanxi 030000, China.
| | - Hongling Duan
- Shanxi Medical University, 56 new south road, Taiyuan, Shanxi 030000, China
| | - Gang Jing
- Clinical Laboratory, the Second Hospital Affiliated to Shanxi Medical University, 382 Wuyi Road, Taiyuan, Shanxi 030000, China
| | - Gaiqing Wang
- Department of Neurology, the Second Hospital Affiliated to Shanxi Medical University, 382 Wuyi Road, Taiyuan, Shanxi 030000, China
| | - Yazhi Hou
- Shanxi Medical University, 56 new south road, Taiyuan, Shanxi 030000, China
| | - Mimi Zhang
- Shanxi Medical University, 56 new south road, Taiyuan, Shanxi 030000, China
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Gao E, Zhang C, Wang J. Effects of Budesonide Combined with Noninvasive Ventilation on PCT, sTREM-1, Chest Lung Compliance, Humoral Immune Function and Quality of Life in Patients with AECOPD Complicated with Type II Respiratory Failure. Open Med (Wars) 2019; 14:271-278. [PMID: 30886898 PMCID: PMC6419390 DOI: 10.1515/med-2019-0023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 11/20/2018] [Indexed: 12/27/2022] Open
Abstract
Objective Our objective is to explore the effects of budesonide combined with noninvasive ventilation on procalcitonin (PCT), soluble myeloid cell triggering receptor-1 (sTREM-1), thoracic and lung compliance, humoral immune function, and quality of life in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD) complicated with type II respiratory failure. Methods There were 82 patients with AECOPD complicated with type II respiratory failure admitted into our hospital between March, 2016-September, 2017. They were selected and randomly divided into observation group (n=41) and control group (n=41). The patients in the control group received noninvasive mechanical ventilation and the patients in the observation group received budesonide based on the control group. The treatment courses were both 10 days. Results The total effective rate in the observation group (90.25%) was higher than the control group (65.85%) (P<0.05). The scores of cough, expectoration, and dyspnea were decreased after treatment (Observation group: t=18.7498, 23.2195, 26.0043, control group: t=19.9456, 11.6261, 14.2881, P<0.05); the scores of cough, expectoration, and dyspnea in the observation group were lower than the control group after treatment (t=11.6205, 17.4139, 11.6484, P<0.05). PaO2 was increased and PaCO2 was decreased in both groups after treatment (Observation group: t=24.1385, 20.7360, control group: t=11.6606, 9.2268, P<0.05); PaO2 was higher and PaCO2 was lower in the observation group than the control group after treatment (t=10.3209, 12.0115, P<0.05). Serum PCT and sTREM-1 in both groups were decreased after treatment (Observation group: t=16.2174, 12.6698, control group: t=7.2283, 6.1634, P<0.05); serum PCT and sTREM-1 in the observation group were lower than the control group after treatment (t=10.1017, 7.8227, P<0.05). The thoracic and lung compliance in both groups were increased after treatment (Observation group: t=30.5359, 17.8471, control group: t=21.2426, 13.0007, P<0.05); the thoracic and lung compliance in the observation group were higher than the control group after treatment (t=10.8079, 5.9464, P<0.05). IgA and IgG in both groups were increased after treatment (Observation group: t=9.5794, 25.3274, control group: t=5.5000, 4.7943, P<0.05), however IgM was not statistically different after treatment (Observation group: t=0.7845, control group: t=0.1767, P>0.05); IgA and IgG in the observation group were higher than the control group (t=4.9190, 4.7943, P<0.05), however IgM was not statistically different between two groups after treatment (t=0.6168, P>0.05). COPD assessment test (CAT) scores were decreased in both groups after treatment (Observation group: t=20.6781, control group: t=9.0235, P<0.05); CAT score in the observation group was lower than the control group after treatment (t=12.9515, P<0.05). Forced expiratory volume in one second (FEV1%) and forced expiratory volume in one second/ forced expiratory volume in one second (FEV1/FVC) were increased in both groups after treatment (Observation group: t=15.3684, 15.9404, control group: t=10.6640, 12.8979, P<0.05); FEV1% and FEV1/FVC in the observation group were higher than the control group (t=6.9528, 7.3527,P<0.05). The rates of complication were not statistically different between two groups (P>0.05). Conclusion Budesonide combined with noninvasive mechanical ventilation has good curative effects in treating AECOPE patients complicated with type II respiratory failure. It can decrease serum PCT and sTREM-1, increase thoracic lung compliance, and improve the humoral immune function and life quality.
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Affiliation(s)
- Erxiang Gao
- Emergency Department, Xingyuan Hospital of Yulin, Shaanxi 719000, China
| | - Chi Zhang
- The Second Department of Internal Medicine, Xingyuan Hospital of Yulin, Shaanxi 719000, China
| | - Jianping Wang
- Department of Emergency, 1st Hospital of Yulin, Yulin City, Shaanxi Province 719000, China
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14
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Edel Y, Kliminski V, Pokroy-Shapira E, Oren S, Dortort Lazar A, Pri-Paz Basson Y, Egbaria M, Molad Y. Elevated plasma level of soluble triggering receptor expressed on myeloid cells-1 is associated with inflammation activity and is a potential biomarker of thrombosis in primary antiphospholipid syndrome. Arthritis Res Ther 2019; 21:10. [PMID: 30616644 PMCID: PMC6323669 DOI: 10.1186/s13075-018-1779-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 11/27/2018] [Indexed: 01/28/2023] Open
Abstract
Background Soluble triggering receptor expressed on myeloid cells-1 (sTREM-1) is an innate-immune receptor found in blood. Its presence reflects innate immune cell activation. We sought to investigate plasma sTREM-1 levels in patients with primary antiphospholipid syndrome (PAPS). Methods A cross-sectional, case-control design was used. Plasma sTREM-1 levels were analyzed by enzyme-linked immunosorbent assay (ELISA) in consecutive patients diagnosed with PAPS or asymptomatic antiphospholipid antibody (APLA) carriers and controls. Results The study cohort included 33 patients with PAPS, 10 asymptomatic APLA carriers, and 73 controls. Mean plasma sTREM-1 levels were significantly higher in patients with PAPS (299.2 ± 146.7 pg/ml) and thrombotic PAPS-ever (current and past thrombotic event) (327.2 ± 151.3 pg/ml) compared with controls (230.2 ± 85.5 pg/ml; p = 0.006 and p = 0.003, respectively), patients with thrombotic PAPS compared with patients with past obstetric APS (195.12 ± 58.52 pg/ml, p = 0.01) and APLA carriers (215.8 ± 51.6 pg/ml, p = 0.02), patients with current thrombotic PAPS (429.5 ± 227.5 pg/ml) compared with patients with past thrombotic PAPS (289.5 ± 94.65 pg/ml, p = 0.01), and patients with PAPS who had ever had a stroke or venous thromboembolic event compared with patients who had not (p = 0.007 and p = 0.02, respectively). On receiver operator characteristic curve analysis, plasma sTREM-1 levels differentiated patients with current thrombotic PAPS from asymptomatic APLA carriers and controls, with an area under the curve of 0.7292 (p = 0.0014) and 0.88 (p < 0.0001), respectively. Multivariate regression analysis to identify sTREM-1 predictors (thrombotic PAPS-ever, age, and sex) yielded an independent association of sTREM-1 levels with thrombotic PAPS (p < 0.0001). Conclusions Plasma sTREM-1 levels are significantly elevated in patients with thrombotic PAPS. Levels of sTREM-1 might serve as a biomarker for thrombosis in patients with PAPS.
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Affiliation(s)
- Yonatan Edel
- Rheumatology Unit, Rabin Medical Center - Beilinson Hospital, 4941492, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Vitaly Kliminski
- Laboratory of Inflammation Research, Felsenstein Medical Research Center, Rabin Medical Center - Beilinson Hospital, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Elisheva Pokroy-Shapira
- Rheumatology Unit, Rabin Medical Center - Beilinson Hospital, 4941492, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Shirly Oren
- Rheumatology Unit, Rabin Medical Center - Beilinson Hospital, 4941492, Petach Tikva, Israel
| | - Ariela Dortort Lazar
- Rheumatology Unit, Rabin Medical Center - Beilinson Hospital, 4941492, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yael Pri-Paz Basson
- Rheumatology Unit, Rabin Medical Center - Beilinson Hospital, 4941492, Petach Tikva, Israel
| | - Mohammad Egbaria
- Rheumatology Unit, Rabin Medical Center - Beilinson Hospital, 4941492, Petach Tikva, Israel
| | - Yair Molad
- Rheumatology Unit, Rabin Medical Center - Beilinson Hospital, 4941492, Petach Tikva, Israel. .,Laboratory of Inflammation Research, Felsenstein Medical Research Center, Rabin Medical Center - Beilinson Hospital, Petach Tikva, Israel. .,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
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15
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Ajmani S, Singh H, Chaturvedi S, Mishra R, Rai MK, Jain A, Misra DP, Agarwal V. Utility of neutrophil CD64 and serum TREM-1 in distinguishing bacterial infection from disease flare in SLE and ANCA-associated vasculitis. Clin Rheumatol 2018; 38:997-1005. [PMID: 30446886 DOI: 10.1007/s10067-018-4334-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 09/25/2018] [Accepted: 10/09/2018] [Indexed: 12/17/2022]
Abstract
Bacterial and opportunistic infections are a major cause of morbidity and mortality in patients with systemic lupus erythematosus (SLE) and antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis owing to treatment with immunosuppressants. Commonly used laboratory tests are unreliable in differentiating infection from active disease patients. Fc receptor (FcγR1 or CD64) expression on neutrophils and soluble TREM-1 (triggering receptor expressed on monocytes) are potential biomarkers of bacterial infections. Our aim was to measure the clinical usefulness of quantitative CD64 measurement on neutrophils and soluble TREM-1 measurements in differentiating bacterial infection from active disease in patients with SLE and ANCA vasculitis. Patients with bacterial infection (n = 25), active disease (n = 51), and healthy controls (n = 20) were included. Neutrophil CD64 expression using flow cytometry and sTREM-1 and procalcitonin levels by ELISA were studied. The percentage of neutrophils with CD64 expression and their mean fluorescence intensity in patients with infection (68.8 (56.9-86.5)%, 1037 (229-1828)) were significantly (p < 0.05) higher as compared to those without infection (7.7 (2.6-13.1)%, 456 (20-968)) and controls (7.05 (1.4-9.5)%, 99.5 (54.7-140.7)). The sensitivity and specificity of CD64 expression on neutrophils to diagnose bacterial infection (using a cutoff value of 30%) was 85% and 84%, respectively, whereas the sensitivity and specificity of procalcitonin was 75% and 85%, respectively. There was no significant difference in soluble TREM-1 levels between the two groups. Quantitative measurement of CD64 on neutrophils can distinguish between systemic infection and the flare of autoimmune diseases.
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Affiliation(s)
- Sajal Ajmani
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Rae Bariely Road, Lucknow, Uttar Pradesh, 226014, India
| | - Harshit Singh
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Rae Bariely Road, Lucknow, Uttar Pradesh, 226014, India
| | - Saurabh Chaturvedi
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Rae Bariely Road, Lucknow, Uttar Pradesh, 226014, India
| | - Ravi Mishra
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Rae Bariely Road, Lucknow, Uttar Pradesh, 226014, India
| | - Mohit Kumar Rai
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Rae Bariely Road, Lucknow, Uttar Pradesh, 226014, India
| | - Avinash Jain
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Rae Bariely Road, Lucknow, Uttar Pradesh, 226014, India
| | - Durga Prasanna Misra
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Rae Bariely Road, Lucknow, Uttar Pradesh, 226014, India
| | - Vikas Agarwal
- Department of Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Rae Bariely Road, Lucknow, Uttar Pradesh, 226014, India.
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16
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Gao S, Yi Y, Xia G, Yu C, Ye C, Tu F, Shen L, Wang W, Hua C. The characteristics and pivotal roles of triggering receptor expressed on myeloid cells-1 in autoimmune diseases. Autoimmun Rev 2018; 18:25-35. [PMID: 30408584 DOI: 10.1016/j.autrev.2018.07.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 07/09/2018] [Indexed: 01/13/2023]
Abstract
Triggering receptor expressed on myeloid cells-1 (TREM-1) engagement can directly trigger inflammation or amplify an inflammatory response by synergizing with TLRs or NLRs. Autoimmune diseases are a family of chronic systemic inflammatory disorders. The pivotal role of TREM-1 in inflammation makes it important to explore its immunological effects in autoimmune diseases. In this review, we summarize the structural and functional characteristics of TREM-1. Particularly, we discuss recent findings on TREM-1 pathway regulation in various autoimmune diseases, including rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), inflammatory bowel disease (IBD), type 1 diabetes (T1D), and psoriasis. This receptor may potentially be manipulated to alter the inflammatory response to chronic inflammation and possible therapies are explored in this review.
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Affiliation(s)
- Sheng Gao
- Laboratory Animal Center, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Yongdong Yi
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Guojun Xia
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Chengyang Yu
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Chenmin Ye
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Fuyang Tu
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Leibin Shen
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China
| | - Wenqian Wang
- Department of Breast Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang Province, China.
| | - Chunyan Hua
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China.
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17
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Vázquez-Otero I, Rodríguez-Navedo Y, Vilá-Rivera K, Nieves-Plaza M, Morales-Ortiz J, Washington AV, Vilá LM. Association of soluble TREM-like transcript-1 with clinical features and patient reported outcomes in systemic lupus erythematosus. Eur J Rheumatol 2018; 5:244-248. [PMID: 30308137 PMCID: PMC6267757 DOI: 10.5152/eurjrheum.2018.18074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 06/27/2018] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVE The soluble triggering receptor expressed on myeloid cells (TREM-1)-like transcript 1 (sTLT-1) has a modulatory effect on the activation of TREM-1. We compared plasma sTLT-1 levels between patients with systemic lupus erythematosus (SLE) and healthy individuals and determined the association between sTLT-1 levels and clinical features and patient-reported outcomes (PROs) among patients with lupus. METHODS An unmatched case-control study was conducted in 46 patients with SLE and 28 healthy subjects. sTLT-1 plasma levels were determined using enzyme-linked immunosorbent assay. Demographic factors, SLE manifestations, comorbidities, pharmacologic profile, disease activity (per SLAM-R), damage accrual, and PROs (as per Lupus Patient-Reported Outcome [LupusPRO]) were studied. RESULTS Patients with SLE were found to have lower sTLT-1 levels compared with healthy individuals (9.0±7.2 vs. 18.6±22.3 pg/mL, p=0.008). Among patients with SLE, higher sTLT-1 levels were found in those taking corticosteroids (11.1±8.8 vs. 6.9±4.6 pg/mL, p=0.014). Significant correlations were found for the cognition (r=-0.442, p=0.027) and desires/goals (r=0.435, p=0.030) domains of LupusPRO. A tendency was observed between sTLT-1 levels and the SLAM-R (r=-0.278, p=0.064) and the lupus symptoms (r=-0.388, p=0.055) and physical health (r=-0.382, p=0.060) domains of LupusPRO. CONCLUSION Compared with healthy individuals, sTLT-1 levels were significantly lower in patients with SLE. Among patients with SLE, correlations were observed for some domains of LupusPRO. Given that sTLT-1 has anti-inflammatory properties, the deficiency of this protein could play an important role in the pathogenesis of SLE.
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Affiliation(s)
- Ileana Vázquez-Otero
- Division of Rheumatology, Department of Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico
| | - Yerania Rodríguez-Navedo
- Division of Rheumatology, Department of Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico
| | - Karina Vilá-Rivera
- Division of Rheumatology, Department of Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico
| | - Mariely Nieves-Plaza
- Division of Rheumatology, Department of Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico
| | - Jessica Morales-Ortiz
- Department of Biology, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico
| | - A Valance Washington
- Department of Biology, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico
| | - Luis M Vilá
- Division of Rheumatology, Department of Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico
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18
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Molad Y. Response to the letter to the editor by Gkougkourelas et al - EJCI-2017-0361. Eur J Clin Invest 2017; 47. [PMID: 29047115 DOI: 10.1111/eci.12850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 10/15/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Yair Molad
- Rheumatology Unit, Rabin Medical Center, Beilinson Hospital, Petach Tikva, Israel.,Sackler Faculty of Medicine, The Laboratory of Inflammation Research, Felsenstein Medical Research Center, Petach Tikva, Israel
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19
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Gkougkourelas I, Tselios K, Boura P. Discrepancies in reference values of soluble Triggering Receptor Expressed on Myelocytes 1 (sTREM-1) question the reliability of related studies. Eur J Clin Invest 2017; 47. [PMID: 29047104 DOI: 10.1111/eci.12849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 10/15/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Ioannis Gkougkourelas
- Clinical Immunology Unit 2nd Internal Medicine Department, Hippokration Hospital Thessaloniki, Thessaloniki, Greece
| | - Konstantinos Tselios
- Centre for Prognosis Studies in Rheumatic Diseases, Toronto Lupus Clinic, University Health Network, Toronto, ON, Canada
| | - Panagiota Boura
- Clinical Immunology Unit 2nd Internal Medicine Department, Hippokration Hospital Thessaloniki, Thessaloniki, Greece
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20
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Qian CL, Fan R. Effect of Pingchuan Guben decoction on patients with chronic obstructive pulmonary disease: Results from a randomized comparative effectiveness research trial. Exp Ther Med 2017; 14:3915-3925. [PMID: 29043001 PMCID: PMC5639302 DOI: 10.3892/etm.2017.5018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 05/11/2017] [Indexed: 12/20/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is known to be a systemic low-grade ongoing inflammation exerting major health and economic burden worldwide. Complementary and alternative medicines, such as Traditional Chinese Medicine, are widely used for the treatment of patients with COPD. The present study was designed to investigate the efficacy of Pingchuan Guben decoction on patients with COPD through a double-blinded, open-labeled, randomized controlled trial. A total of 86 patients were randomly assigned to two groups, with 43 patients in the intervention group and 43 cases in the control group. The patients in the control group were treated with conventional western medicine, and the intervention group received a combination of conventional western medicine and Pingchuan Guben decoction. After 12 weeks of treatment, the mean 6-minute walking distance, forced expiratory volume in 1 sec (FEV1), forced vital capacity (FVC) and FEV1/FVC in the intervention group were significantly higher than those of the control group (P<0.05). The levels of inflammation factors and protease molecules were significantly ameliorated in the intervention group compared with the control group (P<0.05). The levels of Kelch-like ECH-associated protein 1 (Keap1), nuclear factor-E2-related factor-2 (Nrf2), superoxide anions, malondialdehyde, glutathione S-transferase and glutathione peroxidase were significantly more improved in the intervention group compared with those in the control group over the 12-week study period (P<0.05). Therefore, combinations of western medicine with Pingchuan Guben decoction may exert therapeutic effects on patients with COPD via modulations of inflammation factors and protease molecules, as well as the activation of the Keap1/Nrf2 signaling pathway.
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Affiliation(s)
- Cheng-Liang Qian
- Department of Chinese Medicine, Nanjing BenQ Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
| | - Rong Fan
- Department of Chinese Medicine, Nanjing BenQ Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, P.R. China
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21
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Ospina FE, Echeverri A, Zambrano D, Suso JP, Martínez-Blanco J, Cañas CA, Tobón GJ. Distinguishing infections vs flares in patients with systemic lupus erythematosus. Rheumatology (Oxford) 2017; 56:i46-i54. [PMID: 27744359 DOI: 10.1093/rheumatology/kew340] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Indexed: 12/20/2022] Open
Abstract
SLE is a chronic autoimmune disease involving multiple systems. Patients with SLE are highly susceptible to infections due to the combined effects of their immunosuppressive therapy and the abnormalities of the immune system that the disease itself causes, which can increase mortality in these patients. The differentiation of SLE activity and infection in a febrile patient with SLE is extremely difficult. Activity indexes are useful to identify patients with lupus flares but some clinical and biological abnormalities may, however, make it difficult to differentiate flares from infection. Several biological markers are now recognized as potential tools to establish the difference between SLE activity and infection, including CRP and procalcitonin. It is possible, however, that the use of only one biomarker is not sufficient to confirm or discard infection. This means that new scores, which include different biomarkers, might represent a better solution for differentiating these two clinical pictures. This review article describes several markers that are currently used, or have the potential, to differentiate infection from SLE flares.
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Affiliation(s)
- Fabio E Ospina
- Rheumatology Unit, Fundación Valle del Lili, ICESI University.,Clinical Investigation InstituteFundación Valle del Lili
| | - Alex Echeverri
- Rheumatology Unit, Fundación Valle del Lili, ICESI University
| | - Diana Zambrano
- Internal Medicine, Fundación Valle del Lili, ICESI University
| | - Juan-Pablo Suso
- Rheumatology Unit, Fundación Valle del Lili, ICESI University.,Clinical Investigation InstituteFundación Valle del Lili
| | | | - Carlos A Cañas
- Rheumatology Unit, Fundación Valle del Lili, ICESI University
| | - Gabriel J Tobón
- Rheumatology Unit, Fundación Valle del Lili, ICESI University.,Internal Medicine, Fundación Valle del Lili, ICESI University
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22
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Liu CJ, Tsai CY, Chiang SH, Tang SJ, Chen NJ, Mak TW, Sun GH, Sun KH. Triggering receptor expressed on myeloid cells-1 (TREM-1) deficiency augments BAFF production to promote lupus progression. J Autoimmun 2017; 78:92-100. [DOI: 10.1016/j.jaut.2016.12.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 12/21/2016] [Accepted: 12/29/2016] [Indexed: 11/30/2022]
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23
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Early elevated levels of soluble triggering receptor expressed on myeloid cells-1 in subarachnoid hemorrhage patients. Neurol Sci 2017; 38:873-877. [DOI: 10.1007/s10072-017-2853-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 02/15/2017] [Indexed: 02/03/2023]
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24
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Sun XG, Ma Q, Jing G, Wang GQ, Hao XD, Wang L. Increased levels of soluble triggering receptor expressed on myeloid cells-1 in cerebrospinal fluid of subarachnoid hemorrhage patients. J Clin Neurosci 2017; 35:139-143. [DOI: 10.1016/j.jocn.2016.09.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 09/15/2016] [Indexed: 11/25/2022]
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25
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Li M, Shi X, Chen F, Hao F. Daphnetin inhibits inflammation in the NZB/W F1 systemic lupus erythematosus murine model via inhibition of NF-κB activity. Exp Ther Med 2016; 13:455-460. [PMID: 28352315 PMCID: PMC5348691 DOI: 10.3892/etm.2016.3971] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Accepted: 10/21/2016] [Indexed: 12/12/2022] Open
Abstract
Daphnetin is a compound extracted from Chinese medicinal herbs, which exerts analgesic and anti-inflammatory effects. The present study aimed to investigate the potential therapeutic effect of daphnetin on inflammation in the NZB/W F1 systemic lupus erythematosus (SLE) murine model. Female NZB/WF1 mice (age, 16–18 weeks) were intraperitoneally injected with daphnetin once a day for 12 weeks. It was revealed that daphnetin treatment significantly increased animal survival rates, reduced renal damage and blood urea nitrogen levels, and suppressed serum autoantibody production in the SLE-prone NZB/W F1 mice. In addition, daphnetin treatment significantly decreased the serum levels of tumor necrosis factor-α and interleukin-6, inhibited nuclear factor (NF)-κB activity, suppressed the protein expression of nuclear factor of activated T-cells and promoted A20 protein expression in SLE-prone NZB/W F1 mice. In conclusion, daphnetin inhibited inflammation in the NZB/W F1 murine SLE model via inhibition of NF-κB mediated by upregulation of A20.
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Affiliation(s)
- Min Li
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Xiaowei Shi
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Fangru Chen
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Fei Hao
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
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Gao S, Yuan L, Wang Y, Hua C. Enhanced expression of TREM-1 in splenic cDCs in lupus prone mice and it was modulated by miRNA-150. Mol Immunol 2016; 81:127-134. [PMID: 27940256 DOI: 10.1016/j.molimm.2016.12.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 11/24/2016] [Accepted: 12/03/2016] [Indexed: 10/20/2022]
Abstract
Over activation of conventional dendritic cells (cDCs) contributes to the development of systemic lupus erythematosus (SLE). Triggering receptor expressed on myeloid cells 1 (TREM-1) is emerging as a potent amplifier of the inflammatory responses. We sought to determine the expression level of TREM-1 on cDCs in a mice model of SLE and to identify miRNA which could modulate TREM-1 expression. In the present study, TREM-1 expression in splenocytes and on cDCs was strongly up-regulated in vivo, and was enhanced with LPS stimulation in vitro. Blockade of TREM-1 signal impaired the TLR4-induced cytokines production. These indicated that TREM-1 potently amplified the function of TLR4 which enhanced the inflammation responses. A common set of dysregulated miRNAs (miRNA-98, -150 and -494) were identified in splenocytes of mice. Moreover, the results of bioinformatics and the immunoblotting, demonstrated that miRNA-150 inhibited the expression of TREM-1. Together, these data suggested that TREM-1 signaling pathway may be a therapeutic target to prevent the effects of the inflammatory cDCs in SLE and miRNA-150 serves as the important regulator.
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Affiliation(s)
- Sheng Gao
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Linbo Yuan
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Yongyu Wang
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Chunyan Hua
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang Province, China.
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Bassyouni IH, Fawzi S, Gheita TA, Bassyouni RH, Nasr AS, El Bakry SA, Afifi N. Clinical Association of a Soluble Triggering Receptor Expressed on Myeloid Cells-1 (sTREM-1) in Patients with Systemic Lupus Erythematosus. Immunol Invest 2016; 46:38-47. [PMID: 27648678 DOI: 10.1080/08820139.2016.1211140] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A triggering receptor expressed on myeloid cells-1 (TREM-1) is a member of the immunoglobulin superfamily with an established role in innate and adaptive immune response. We aimed to determine the plasma concentrations and clinical association of sTREM-1 in Systemic Lupus Erythematosus (SLE) patients. Plasma from 79 SLE patients and 35 normal healthy subjects were assayed for sTREM-1 and IL-6 levels using Enzyme Linked Immunosorbant Assay (ELISA). The clinical disease characteristics and serological data were prospectively assessed. Disease activity was scored using the SLE disease activity index. We detected significantly higher levels of sTREM-1 in plasma of SLE patients than the healthy control group. We also detected high sTREM-1 levels in subgroups of patients with neuropsychiatric manifestations (NPLE) and patients with the total high disease activity and NPLE activity. In addition, sTREM-l levels were significantly correlated with parameters of disease activity, i.e. SLEDAI score, IL-6, hypoalbuminemia. On the other hand, we did not find significant differences in sTREM-1 levels in relation to age, disease duration, medications, ESR, other organ system involvement, or the presence of anti-dsDNA. Our preliminary data indicated that sTREM-1 levels may be an additional useful marker of disease activity in SLE. It also highlights its importance in patients with NPLE. An additional prospective longitudinal study should be carried out to support these findings.
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Affiliation(s)
- Iman H Bassyouni
- a Rheumatology and Rehabilitation Department , Faculty of Medicine, Cairo University , Cairo , Egypt
| | - Samar Fawzi
- a Rheumatology and Rehabilitation Department , Faculty of Medicine, Cairo University , Cairo , Egypt
| | - Tamer A Gheita
- a Rheumatology and Rehabilitation Department , Faculty of Medicine, Cairo University , Cairo , Egypt
| | - Rasha H Bassyouni
- b Medical Microbiology and Immunology Department , Fayoum University , Fayoum , Egypt
| | - Aml S Nasr
- c Clinical Pathology Department , Faculty of Medicine, Cairo University , Cairo , Egypt
| | - Samah A El Bakry
- d Internal Medicine Department , Division of Rheumatology, Ain Shams University , Cairo , Egypt
| | - Naglaa Afifi
- d Internal Medicine Department , Division of Rheumatology, Ain Shams University , Cairo , Egypt
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Lin CH, Hsieh SC, Keng LT, Lee HS, Chang HT, Liao WY, Ho CC, Yu CJ. Prospective Evaluation of Procalcitonin, Soluble Triggering Receptor Expressed on Myeloid Cells-1 and C-Reactive Protein in Febrile Patients with Autoimmune Diseases. PLoS One 2016; 11:e0153938. [PMID: 27096761 PMCID: PMC4838219 DOI: 10.1371/journal.pone.0153938] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 03/21/2016] [Indexed: 11/19/2022] Open
Abstract
Background Both procalcitonin (PCT) and soluble triggering receptor expressed on myeloid cells-1 (sTREM-1) have been investigated separately as indicators of infection in patients with autoimmune diseases. Our study simultaneously evaluated both PCT and sTREM-1 along with C-reactive protein (CRP) in febrile patients with autoimmune diseases. Methods Fifty-nine patients were enrolled in the study. The patients were categorized into the infection group (n = 24) or the disease flare group (n = 35). sTREM-1, PCT and CRP concentrations at fever onset were compared between the two groups of patients. Results sTREM-1 and CRP did not differ between the two groups. PCT [median (range), ng/ml] was higher in the infection group than in the disease flare group [0.53 (0.02–12.85) vs. 0.12 (0.02–19.23), p = 0.001]. The area under the receiver-operating characteristic (ROC) for diagnosis of infection was 0.75 for PCT (p = 0.001), 0.63 for CRP (p = 0.09) and 0.52 for sTREM-1 (p = 0.79). Using 0.2 ng/ml as the cutoff value for PCT, sensitivity was 0.75 and specificity was 0.77. Negative predictive values for PCT were 92%, 87% and 82% for a prevalence of infection of 20%, 30%, and 40%, respectively. Neither immunosuppressants nor biomodulators affected the level of the three biomarkers. However, in patients treated with corticosteroids, the levels of sTREM-1 and CRP were significantly decreased compared with the untreated patients. Conclusions Setting PCT at a lower cutoff value could provide useful information on excluding infection in febrile patients with autoimmune diseases. The possible effect of corticosteroids on the level of sTREM-1 as an infection marker deserves further study.
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Affiliation(s)
- Chou-Han Lin
- Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei city, Taiwan
| | - Song-Chou Hsieh
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Li-Ta Keng
- Department of Internal Medicine, National Taiwan University Hospital, Hsin-Chu Branch, Hsin-Chu, Taiwan
| | - Ho-Sheng Lee
- Department of Internal Medicine, E-Da hospital, Kaoshiung, Taiwan
| | - Hou-Tai Chang
- Department of Internal Medicine, Far Eastern Memorial Hospital, New Taipei city, Taiwan
| | - Wei-Yu Liao
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chao-Chi Ho
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
- * E-mail:
| | - Chong-Jen Yu
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
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Molad Y, Ofer-Shiber S, Pokroy-Shapira E, Oren S, Shay-Aharoni H, Babai I. Soluble triggering receptor expressed on myeloid cells-1 is a biomarker of anti-CCP-positive, early rheumatoid arthritis. Eur J Clin Invest 2015; 45:557-64. [PMID: 25832796 DOI: 10.1111/eci.12442] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 03/25/2015] [Indexed: 01/02/2023]
Abstract
OBJECTIVES To assess serum soluble triggering receptor expressed on myeloid cells-1 (sTREM-1) levels in disease-modifying antirheumatic drug (DMARD)-naïve early rheumatoid arthritis (ERA), to investigate the association of sTREM-1 levels with Disease Activity Score in 28 joints (DAS28) and seropositivity for anti-cyclic citrullinated peptide (CCP) antibody and to determine the predictive value of sTREM-1 with respect to clinical response to DMARD therapy. METHODS Twenty-two consecutive patients with DMARD-naïve ERA were prospectively evaluated for serum sTREM-1 by means of ELISA at diagnosis and at the following clinic visit after prednisone and/or DMARD has been administered, and related to DAS28 and serum level of anti-CCP antibody. We compared the sTREM-1 level to that of 31 patients with established RA as well as to 24 controls. RESULTS Serum sTREM-1 level was significantly higher in the DMARD-naïve ERA group (212.9 ± 388.9 ρg/mL) compared to established RA group (1478.0 ± 280.0 ρg/mL, P = 0.001) and normal control (34.4 ± 7.4 ρg/mL, P < 0.001). In the ERA group, elevated basal sTREM-1 level correlated with higher DAS28-CRP score (P = 0.001, HR 3.23, 95% CI 1.4-8.12), DAS28-ESR (P = 0.04, HR 2.34 95% CI 0.1-8.12), as well as predicted higher DAS28 score at the following encounter after DMARD treatment was administered (P = 0.001, HR 3.2 95% CI 1.1-7.2). Higher serum level of sTREM-1 correlated with higher titres of anti-CCP antibody (P < 0.001). CONCLUSIONS Our results suggest that serum sTREM-1 may provide a novel biomarker for DMARD-naïve ERA as well as for seropositivity for anti-CCP antibody and RA activity.
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Affiliation(s)
- Yair Molad
- Rheumatology Unit, Rabin Medical Center, Beilinson Hospital, Petach Tikva, Israel.,Laboratory of Inflammation Research, Felsenstein Medical Research Center, Petach Tikva, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Shachaf Ofer-Shiber
- Department of Internal Medicine H, Rabin Medical Center, Beilinson Hospital, Petach Tikva, Israel
| | | | - Shirly Oren
- Rheumatology Unit, Rabin Medical Center, Beilinson Hospital, Petach Tikva, Israel
| | - Hagit Shay-Aharoni
- Rheumatology Unit, Rabin Medical Center, Beilinson Hospital, Petach Tikva, Israel
| | - Ilan Babai
- Laboratory of Clinical Immunology, Rabin Medical Center, Beilinson Hospital, Petach Tikva, Israel
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Lemarié J, Barraud D, Gibot S. Host response biomarkers in sepsis: overview on sTREM-1 detection. Methods Mol Biol 2015; 1237:225-239. [PMID: 25319790 DOI: 10.1007/978-1-4939-1776-1_17] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The diagnosis of sepsis, and especially its differentiation from sterile inflammation, may be challenging. TREM-1, the triggering receptor expressed on myeloid cells-1, is an amplifier of the innate immune response. Its soluble form acts as a decoy for the natural TREM-1 ligand and dampens its activation. In this chapter, we review the numerous studies that have evaluated the usefulness of sTREM-1 concentration determination for the diagnosis and the prognosis evaluation of sepsis or localized infection. Nowadays, sandwich ELISA kits are available and the assay is described.
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Affiliation(s)
- Jérémie Lemarié
- Department of Medical Intensive Care, Hôpital Central, 29 avenue du Maréchal de Lattre de Tassigny, 54035, Nancy Cedex, France
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