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Balkrishna A, Sinha S, Kumar A, Arya V, Gautam AK, Valis M, Kuca K, Kumar D, Amarowicz R. Sepsis-mediated renal dysfunction: Pathophysiology, biomarkers and role of phytoconstituents in its management. Biomed Pharmacother 2023; 165:115183. [PMID: 37487442 DOI: 10.1016/j.biopha.2023.115183] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/08/2023] [Accepted: 07/18/2023] [Indexed: 07/26/2023] Open
Abstract
Sepsis has evolved as an enormous health issue amongst critically ill patients. It is a major risk factor that results in multiple organ failure and shock. Acute kidney injury (AKI) is one of the most frequent complications underlying sepsis, which portends a heavy burden of mortality and morbidity. Thus, the present review is aimed to provide an insight into the recent progression in the molecular mechanisms targeting dysregulated immune response and cellular dysfunction involved in the development of sepsis-associated AKI, accentuating the phytoconstituents as eligible candidates for attenuating the onset and progression of sepsis-associated AKI. The pathogenesis of sepsis-mediated AKI entails a complicated mechanism and is likely to involve a distinct constellation of hemodynamic, inflammatory, and immune mechanisms. Novel biomarkers like neutrophil gelatinase-associated lipocalin, soluble triggering receptor expressed on myeloid cells 1, procalcitonin, alpha-1-microglobulin, and presepsin can help in a more sensitive diagnosis of sepsis-associated AKI. Many bioactive compounds like curcumin, resveratrol, baicalin, quercetin, and polydatin are reported to play an important role in the prevention and management of sepsis-associated AKI by decreasing serum creatinine, blood urea nitrogen, cystatin C, lipid peroxidation, oxidative stress, IL-1β, TNF-α, NF-κB, and increasing the activity of antioxidant enzymes and level of PPARγ. The plant bioactive compounds could be developed into a drug-developing candidate in managing sepsis-mediated acute kidney injury after detailed follow-up studies. Lastly, the gut-kidney axis may be a more promising therapeutic target against the onset of septic AKI, but a deeper understanding of the molecular pathways is still required.
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Affiliation(s)
- Acharya Balkrishna
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, India
| | - Sugandh Sinha
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, India
| | - Ashwani Kumar
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, India.
| | - Vedpriya Arya
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, India
| | - Ajay Kumar Gautam
- Patanjali Herbal Research Department, Patanjali Research Institute, Haridwar, India
| | - Martin Valis
- Department of Neurology, Charles University in Prague, Faculty of Medicine in Hradec Králové and University Hospital, Hradec Králové, Czech Republic
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic; Biomedical Research Center, University Hospital in Hradec Kralove, Sokolska 581, Hradec Kralove, Czech Republic.
| | - Dinesh Kumar
- School of Bioengineering and Food Technology, Shoolini University of Biotechnology and Management Sciences, Solan, India
| | - Ryszard Amarowicz
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
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Changes in Biomarkers and Hemodynamics According to Antibiotic Susceptibility in a Model of Bacteremia. Microbiol Spectr 2022; 10:e0086422. [PMID: 35862959 PMCID: PMC9430499 DOI: 10.1128/spectrum.00864-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Proper selection of susceptible antibiotics in drug-resistant bacteria is critical to treat bloodstream infection. Although biomarkers that guide antibiotic therapy have been extensively evaluated, little is known about host biomarkers targeting in vivo antibiotic susceptibility. Therefore, we aimed to evaluate the trends of hemodynamics and biomarkers in a porcine bacteremia model treated with insusceptible antibiotics compared to those in susceptible models. Extended-spectrum β-lactamase (ESBL)-producing Escherichia coli (E. coli, 5.0 * 10^9 CFU) was intravenously administered to 11 male pigs. One hour after bacterial infusion, pigs were assigned to two groups of antibiotics, ceftriaxone (n = 6) or ertapenem (n = 5). Pigs were monitored up to 7 h after bacterial injection with fluid and vasopressor support to maintain the mean arterial blood pressure over 65 mmHg. Blood sampling for blood culture and plasma acquisition was performed before and every predefined hour after E. coli injection. Cytokine (tumor necrosis factor-α, interleukin [IL]-1β, IL-6, IL-8, IL-10, C-reactive protein, procalcitonin, presepsin, heparan sulfate, syndecan, and soluble triggering receptor expressed on myeloid cells-1 [sTREM-1]) levels in plasma were analyzed using enzyme-linked immunosorbent assays. Bacteremia developed after intravenous injection of E. coli, and negative conversion was confirmed only in the ertapenem group. While trends of other biomarkers failed to show differences, the trend of sTREM-1 was significantly different between the two groups (P = 0.0001, two-way repeated measures analysis of variance). Among hemodynamics and biomarkers, the sTREM-1 level at post 2 h after antibiotics administration represented a significant difference depending on susceptibility, which can be suggested as a biomarker candidate of in vivo antibiotics susceptibility. Further clinical studies are warranted for validation. IMPORTANCE Early and appropriate antibiotic treatment is a keystone in treating patients with sepsis. Despite its importance, blood culture which requires a few days remains as a pillar of diagnostic method for microorganisms and their antibiotic susceptibility. Whether changes in biomarkers and hemodynamics indicate treatment response of susceptible antibiotic compared to resistant one is not well understood to date. In this study using extended-spectrum β-lactamase -producing E. coli bacteremia porcine model, we have demonstrated the comprehensive cardiovascular hemodynamics and trends of plasma biomarkers in sepsis and compared them between two groups with susceptible and resistant antibiotics. While other hemodynamics and biomarkers have failed to differ, we have identified that levels of soluble triggering receptor expressed on myeloid cells-1 (sTREM-1) significantly differed between the two groups over time. Based on the data in this study, trends of sTREM-1 obtained before the antibiotics and 2~4 h after the antibiotics could be a novel host biomarker that triggers the step-up choice of antibiotics.
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Dholariya S, Parchwani DN, Singh R, Radadiya M, Katoch CDS. Utility of P-SEP, sTREM-1 and suPAR as Novel Sepsis Biomarkers in SARS-CoV-2 Infection. Indian J Clin Biochem 2022; 37:131-138. [PMID: 34642555 PMCID: PMC8494168 DOI: 10.1007/s12291-021-01008-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 09/18/2021] [Indexed: 12/22/2022]
Abstract
The coronavirus disease 2019 is a highly contagious viral infection caused by SARS-CoV-2 virus, member of coronaviridae family. It causes life threatening complications due to complexity and rapid onset course of the disease. Early identification of high-risk patients who require close monitoring and aggressive treatment remains challengeable till date. Novel biomarkers which help to identify high risk patients at the early stage is high priority. Objective of this review to find utility of P-SEP, sTREM-1 and suPAR for diagnosis, risk stratification and prognosis of SARS-CoV-2 infected cases. Soluble receptors like, P-SEP, sTREM-1 and suPAR have been involved in immune regulation in SARS-CoV-2 infection and elevate more in severe cases. A comprehensive research of databases like PubMed, EMBASE, CNKI and Web of Science was performed for relevant studies. A total of nine out of fifteen research literature in initial screening were included for this review. Interestingly all studies have reported high levels of P-SEP, sTREM-1 and suPAR in SARS-CoV-2 infected cases and the biomarkers positively correlated with severity of infection. This implies that P-SEP, sTREM-1 and suPAR can be implemented as surrogate marker in blood profile for early diagnosis, risk stratification and prognosis in SARS-CoV-2 for better management in Indian population at the current situation.
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Affiliation(s)
- Sagar Dholariya
- All India Institute of Medical Sciences, Rajkot, Gujarat India
| | | | - Ragini Singh
- All India Institute of Medical Sciences, Rajkot, Gujarat India
| | | | - C D S Katoch
- All India Institute of Medical Sciences, Rajkot, Gujarat India
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Yang ZQ, Mai JY, Zhu ML, Xiao XM, He XX, Chen SQ, Lin ZL, Feng X. Soluble Triggering Receptors Expressed on Myeloid Cells-1 as a Neonatal Ventilator-Associated Pneumonia Biomarker. Int J Gen Med 2021; 14:4529-4534. [PMID: 34421311 PMCID: PMC8372303 DOI: 10.2147/ijgm.s315987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 07/26/2021] [Indexed: 12/25/2022] Open
Abstract
Background Neonatal ventilator-associated pneumonia (NVAP) is one of the main infections acquired in hospitals, and soluble triggering receptors expressed on myeloid cells-1 (sTREM-1) are a TREM-1 subtype that can be released into the blood or bodily fluids during an infection. Methods The patients included in the present study were divided into three groups: the NVAP group, the first control group, and the second control group (n = 20, each). Children requiring respiratory treatment were assigned to the NVAP group, newborns who received mechanical ventilation and had neonatal respiratory distress syndrome were assigned to the first control group, and newborns with normal X-ray and electrocardiogram results but no non-pulmonary infection was assigned to the second control group. The blood and bronchoalveolar lavage fluid (BALF) sTREM-1 levels in all newborns were analyzed. Results The acute-phase blood and BALF sTREM-1 levels were significantly higher in the NVAP group than in the first control group, and the blood sTREM-1 expression level was lower in the second control group than in the NVAP group. Conclusion The present results suggest that sTREM-1 might be a useful biomarker for NVAP prediction in the Department of Pediatrics.
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Affiliation(s)
- Zu-Qin Yang
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, 215025, Jiangsu, People's Republic of China
| | - Jing-Yun Mai
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Min-Li Zhu
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Xiu-Man Xiao
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Xiao-Xiao He
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Shang-Qin Chen
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Zhen-Lang Lin
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, People's Republic of China
| | - Xing Feng
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, 215025, Jiangsu, People's Republic of China
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Raggi F, Bosco MC. Targeting Mononuclear Phagocyte Receptors in Cancer Immunotherapy: New Perspectives of the Triggering Receptor Expressed on Myeloid Cells (TREM-1). Cancers (Basel) 2020; 12:cancers12051337. [PMID: 32456204 PMCID: PMC7281211 DOI: 10.3390/cancers12051337] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/18/2020] [Accepted: 05/22/2020] [Indexed: 12/14/2022] Open
Abstract
Inflammatory cells are major players in the onset of cancer. The degree of inflammation and type of inflammatory cells in the tumor microenvironment (TME) are responsible for tilting the balance between tumor progression and regression. Cancer-related inflammation has also been shown to influence the efficacy of conventional therapy. Mononuclear phagocytes (MPs) represent a major component of the inflammatory circuit that promotes tumor progression. Despite their potential to activate immunosurveillance and exert anti-tumor responses, MPs are subverted by the tumor to support its growth, immune evasion, and spread. MP responses in the TME are dictated by a network of stimuli integrated through the cross-talk between activatory and inhibitory receptors. Alterations in receptor expression/signaling can create excessive inflammation and, when chronic, promote tumorigenesis. Research advances have led to the development of new therapeutic strategies aimed at receptor targeting to induce a tumor-infiltrating MP switch from a cancer-supportive toward an anti-tumor phenotype, demonstrating efficacy in different human cancers. This review provides an overview of the role of MP receptors in inflammation-mediated carcinogenesis and discusses the most recent updates regarding their targeting for immunotherapeutic purposes. We focus in particular on the TREM-1 receptor, a major amplifier of MP inflammatory responses, highlighting its relevance in the development and progression of several types of inflammation-associated malignancies and the promises of its inhibition for cancer immunotherapy.
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Guo Q, Xu C, Sun C, Zhao Y, Zhang W. Soluble Myeloid Triggering Receptor Expressed on Myeloid Cell 1 Might Have More Diagnostic Value for Bacterial Ascites than C-reactive Protein. Open Life Sci 2018; 13:456-462. [PMID: 33817114 PMCID: PMC7874684 DOI: 10.1515/biol-2018-0054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 09/29/2018] [Indexed: 11/15/2022] Open
Abstract
The timely and accurate diagnosis of ascites is of great significance for early treatment and prognostication. This study explored the value of soluble myeloid triggering receptor expressed on myeloid cell 1 (sTREM-1) and C-reactive protein (CRP) for assessing ascites. A total of 133 patients with ascites who received treatment at the Affiliated Hospital of Taishan Medical University between September 2015 and September 2017 were retrospectively analyzed. The ascites in 22, 45, 33 and 33 patients were tuberculous, bacterial, tumorous, and transudative, respectively. Healthy volunteers (n=30) who received a health examination at the same hospital during the same period constituted the control group. Before treatment, both ascitic sTREM-1 and CRP showed significant differences among the ascites subgroups (P<0.001), with the highest levels in the bacterial subgroup. Serum sTREM-1 and CRP also showed significant differences among the groups. A correlation analysis showed a positive correlation between sTREM-1 and CRP. ROC curves of the bacterial subgroup showed that when the optimal cutoff point was set to 20.2, the sensitivity, specificity, positive predictive value, and negative predictive value of the serum sTREM-1 index were 0.933, 0.955, 0.914, and 0.965, respectively. sTREM-1 may provide more diagnostic value than CRP for the diagnosis of bacterial ascites.
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Affiliation(s)
- Qiang Guo
- Department of Infectious Diseases, Affiliated Hospital of Taishan Medical University, Tai'an 271000, China
| | - Chuanqin Xu
- Department of Infectious Diseases, Affiliated Hospital of Taishan Medical University, Tai'an 271000, China
| | - Chao Sun
- Department of Infectious Diseases, Affiliated Hospital of Taishan Medical University, Tai'an 271000, China
| | - Yubao Zhao
- Department of Infectious Diseases, Affiliated Hospital of Taishan Medical University, Tai'an 271000, China
| | - Weifu Zhang
- Department of Public Health, Affiliated Hospital of Taishan Medical University, Tai'an 271000, China
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Maione F, Iqbal AJ, Raucci F, Letek M, Bauer M, D'Acquisto F. Repetitive Exposure of IL-17 Into the Murine Air Pouch Favors the Recruitment of Inflammatory Monocytes and the Release of IL-16 and TREM-1 in the Inflammatory Fluids. Front Immunol 2018; 9:2752. [PMID: 30555461 PMCID: PMC6284009 DOI: 10.3389/fimmu.2018.02752] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 11/08/2018] [Indexed: 12/21/2022] Open
Abstract
The infiltration of Th17 cells in tissues and organs during the development of many autoimmune diseases is considered a key step toward the establishment of chronic inflammation. Indeed, the localized and prolonged release of IL-17 in specific tissues has been associated with an increased severity of the inflammatory response that remains sustained over time. The cellular and molecular mechanisms behind these effects are far from being clear. In this study we investigated the effects of two repetitive administration of recombinant IL-17 into the murine air pouch to simulate a scenario where IL-17 is released over time in a pre-inflamed tissue. Consistent with our previous observations, mice receiving a single dose of IL-17 showed a transitory influx of neutrophils into the air pouch that peaked at 24 h and declined at 48 h. Conversely, mice receiving a double dose of the cytokine—one at time 0 and the second after 24 h—showed a more dramatic inflammatory response with almost 2-fold increase in the number of infiltrated leukocytes and significant higher levels of TNF-α and IL-6 in the inflammatory fluids. Further analysis of the exacerbated inflammatory response of double-injected IL-17 mice showed a unique cellular and biochemical profile with inflammatory monocytes as the second main population emigrating to the pouch and IL-16 and TREM-1 as the most upregulated cytokines found in the inflammatory fluids. Most interestingly, mice receiving a double injection of IL-1β did not show any change in the cellular or biochemical inflammatory response compared to those receiving a single injection or just vehicle. Collectively these results shed some light on the function of IL-17 as pro-inflammatory cytokine and provide possible novel ways to target therapeutically the pathogenic effects of IL-17 in autoimmune conditions.
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Affiliation(s)
- Francesco Maione
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Naples, Italy.,William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Asif Jilani Iqbal
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Federica Raucci
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Michal Letek
- Health Science Research Centre, Department of Life Science, University of Roehampton, London, United Kingdom
| | - Martina Bauer
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Fulvio D'Acquisto
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.,Health Science Research Centre, Department of Life Science, University of Roehampton, London, United Kingdom
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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: 30] [Impact Index Per Article: 5.0] [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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Kouassi KT, Gunasekar P, Agrawal DK, Jadhav GP. TREM-1; Is It a Pivotal Target for Cardiovascular Diseases? J Cardiovasc Dev Dis 2018; 5:jcdd5030045. [PMID: 30205488 PMCID: PMC6162371 DOI: 10.3390/jcdd5030045] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 09/02/2018] [Accepted: 09/04/2018] [Indexed: 02/07/2023] Open
Abstract
Cardiovascular diseases (CVDs) are as menacing as ever and still continue to kill adults worldwide, notwithstanding tremendous efforts to decrease their consequent mortality and morbidity. Lately, a growing body of research indicated that inflammation plays a pivotal role in the pathogenesis and complications of CVDs. A receptor of the immunoglobulin superfamily, triggering receptors expressed on myeloid cells-1 (TREM-1) was shown to induce and amplify the inflammation in both acute and chronic disease’ pathogenesis and progression, which hence makes it one of the most important complication factors of CVDs. Thus, studies endeavored to investigate the role played by TREM-1 in CVDs with respect to their etiologies, complications, and possible therapeutics. We examined here, for the first time, the most relevant studies regarding TREM-1 involvement in CVDs. We critically analyzed and summarized our findings and made some suggestions for furtherance of the investigations with the aim to utilize TREM-1 and its pathways for diagnostic, management, and prognosis of CVDs. Overall, TREM-1 was found to be involved in the pathogenesis of acute and chronic cardiovascular conditions, such as acute myocardial infarction (AMI) and atherosclerosis. Although most therapeutic approaches are yet to be elucidated, our present research outcome displays a promising future to utilizing the TREM-1 pathway as a potential target for understanding and managing CVDs.
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Affiliation(s)
- Kouassi T Kouassi
- Department of Clinical and Translational Sciences, School of Medicine, Creighton University, Omaha, NE 68178, USA.
| | - Palanikumar Gunasekar
- Department of Clinical and Translational Sciences, School of Medicine, Creighton University, Omaha, NE 68178, USA.
| | - Devendra K Agrawal
- Department of Clinical and Translational Sciences, School of Medicine, Creighton University, Omaha, NE 68178, USA.
| | - Gopal P Jadhav
- Department of Clinical and Translational Sciences, School of Medicine, Creighton University, Omaha, NE 68178, USA.
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Ðerek L, Servis D, Unić A. Soluble Triggering Receptor Expressed on Myeloid Cells-1 and Inflammatory Markers in Colorectal Cancer Surgery: A Prospective Cohort Study. Chin Med J (Engl) 2017; 130:2691-2696. [PMID: 29133757 PMCID: PMC5695054 DOI: 10.4103/0366-6999.218022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background: Major abdominal surgery, including colorectal cancer (CRC) surgery, leads to systemic inflammatory response syndrome that can be detected and monitored with inflammatory markers testing. The aims of the study were to evaluate the usefulness of soluble triggering receptor expressed on myeloid cells-1 (sTREM-1), interleukin-6 (IL-6), procalcitonin (PCT), and C-reactive protein (CRP) in following the inflammatory response in CRC surgery and postoperative period, as well as to determine if duration of the surgery and the time that the colon has been opened during the surgery (open colon time [OCT]) reflect a larger surgical stress through inflammatory markers rise. Methods: The study included 20 patients who underwent CRC surgery and 19 healthy volunteers from June 2011 to September 2012. We determined inflammatory markers 1 day before surgery (T0), 24 h (T1), 48 h (T2), and 7 days after the surgery (T3). All statistical analyses were calculated using MedCalc Statistical Software version 14.8.1 (MedCalc Software bvba, Ostend, Belgium). Results: Concentrations of CRP, PCT, and IL-6 in all measurement times were statistically different and sTREM-1 did not yield statistical significance. A weak positive correlation was found between IL-6 in T1 and T2 with the duration of the surgery (T1: r = 0.4060, P < 0.0001; T2: r = 0.3430, P < 0.0001) and OCT (T1: r = 0.3640, P < 0.0001, T2: r = 0.3430, P < 0.0001). A weak positive correlation between CRP in T2 and OCT (r = 0.4210, P < 0.0001) was also found. The interconnectivity of tested parameters showed a weak positive correlation between CRP and IL-6 in T1 (r = 0.3680; P < 0.0001), moderate positive correlation in T2 (r = 0.6770; P < 0.0001), and a strong positive correlation in T3 (r = 0.8651; P < 0.0001). Conclusions: CRP, IL-6, and PCT were shown to be reliable for postoperative monitoring. Simultaneous determination of CRP and IL-6 might not be useful as they follow similar kinetics. sTREM-1 might not be useful in CRC postoperative monitoring. Trial Registration: www.ClinicalTrials.gov, NCT01244022;https://www.clinicaltrials.gov/ct2/show/NCT01244022?term=01244022&rank=1.
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Affiliation(s)
- Lovorka Ðerek
- Department of Clinical Chemistry, Sestre Milosrdnice University Hospital Center, Zagreb 10000, Croatia
| | - Dražen Servis
- Department of General and Abdominal Surgery, St. Anna Hospital, Sulzbach-Rosenberg 92237, Germany
| | - Adriana Unić
- Department of Clinical Chemistry, Sestre Milosrdnice University Hospital Center, Zagreb 10000, Croatia
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Michel CS, Teschner D, Wagner EM, Theobald M, Radsak MP. Diagnostic value of sTREM-1, IL-8, PCT, and CRP in febrile neutropenia after autologous stem cell transplantation. Ann Hematol 2017; 96:2095-2101. [DOI: 10.1007/s00277-017-3128-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 09/11/2017] [Indexed: 11/24/2022]
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Soluble triggering receptor expressed on myeloid cell-1 (sTREM-1): a potential biomarker for the diagnosis of infectious diseases. Front Med 2017; 11:169-177. [PMID: 28425045 DOI: 10.1007/s11684-017-0505-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 11/24/2016] [Indexed: 12/22/2022]
Abstract
Sensitive and useful biomarkers for the diagnosis and prognosis of infectious diseases have been widely developed. An example of these biomarkers is triggering receptor expressed on myeloid cell-1 (TREM-1), which is a cell surface receptor expressed on monocytes/macrophages and neutrophils. TREM-1 amplifies inflammation by activating the TREM-1/DAP12 pathway. This pathway is triggered by the interaction of TREM-1 with ligands or stimulation by bacterial lipopolysaccharide. Consequently, pro-inflammatory cytokines and chemokines are secreted. Soluble TREM-1 (sTREM-1) is a special form of TREM-1 that can be directly tested in human body fluids and well-known biomarker for infectious diseases. sTREM-1 level can be potentially used for the early diagnosis and prognosis prediction of some infectious diseases, including infectious pleural effusion, lung infections, sepsis, bacterial meningitis, viral infections (e.g., Crimean Congo hemorrhagic fever and dengue fever), fungal infections (e.g., Aspergillus infection), and burn-related infections. sTREM-1 is a more sensitive and specific biomarker than traditional indices, such as C-reactive protein and procalcitonin levels, for these infectious diseases. Therefore, sTREM-1 is a feasible biomarker for the targeted therapy and rapid and early diagnosis of infectious diseases.
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Georgescu AM, Grigorescu BL, Chirteș IR, Vitin AA, Fodor RȘ. The Relevance of Coding Gene Polymorphysms of Cytokines and Cellular Receptors in Sepsis. ACTA ACUST UNITED AC 2017; 3:5-11. [PMID: 29967864 PMCID: PMC5769888 DOI: 10.1515/jccm-2017-0001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 01/20/2017] [Indexed: 12/12/2022]
Abstract
Sepsis is an injurious systemic host response to infection, which can often lead to septic shock and death. Recently, the immune-pathogenesis and genomics of sepsis have become a research topic focusing on the establishment of diagnostic and prognostic biomarkers. As yet, none have been identified as having the necessary specificity to be used independently of other factors in this respect. However the accumulation of current evidence regarding genetic variations, especially the single nucleotide polymorphisms (SNPs) of cytokines and other innate immunity determinants, partially explains the susceptibility and individual differences of patients with regard to the evolution of sepsis. This article outlines the role of genetic variation of some serum proteins which have the potential to be used as biomarker values in evaluating sepsis susceptibility and the progression of the condition.
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Affiliation(s)
- Anca Meda Georgescu
- Infectious Diseases Clinic, University of Medicine and Pharmacy Tirgu Mures, Tirgu Mures, Romania
| | - Bianca Liana Grigorescu
- Discipline of Pathophysiology, University of Medicine and Pharmacy Tirgu Mures, Tirgu Mures, Romania
| | - Ioana Raluca Chirteș
- Infectious Diseases Clinic, University of Medicine and Pharmacy Tirgu Mures, Tirgu Mures, Romania
| | | | - Raluca Ștefania Fodor
- Anesthesiology and Intensive Care Clinic, University of Medicine and Pharmacy Tirgu Mures, Tirgu Mures, Romania
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15
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Liu XR, Xu J, Wang YM, Ji MS, Liu FS. The effects of paeoniflorin injection on soluble triggering receptor expressed on myeloid-1 (sTREM-1) levels in severe septic rats. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2016; 20:565-571. [PMID: 27847433 PMCID: PMC5106390 DOI: 10.4196/kjpp.2016.20.6.565] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Revised: 12/03/2015] [Accepted: 12/07/2015] [Indexed: 11/15/2022]
Abstract
Paeoniflorin (PAE) is the most abundant compound in Xuebijing injection widely used to treat sepsis. We aimed to investigate effect of PAE on expression of soluble triggering receptor expressed on myeloid cells-1 (sTREM-1) in a rat model of sepsis. Wistar rats were divided into Normal, Model, and PAE groups (n=20 each). Endotoxin was administrated at 5 mg/ml/kg in Model and PAE rats to establish rat sepsis model. 1 h after endotoxin administration, PAE was administrated at 4 ml/kg in PAE group once per day for 3 days. Routine blood tests and biochemical indexes were assessed, including aspartate aminotransferase (AST) and creatine kinase-MB (CK-MB). The plasma sTREM-1 level was measured using quantitative ELISA. At the end of experiment, the small intestine, liver, kidney and lung were subjected to pathological examinations. A rat model of sepsis-induced multiple organ dysfunction syndrome (MODS) was established successfully with endotoxin administration (5 mg/ml/kg), evidenced by histo-pathological examinations, routine blood tests and biochemical indexes: platelet count decreased and white blood cell count increased (p<0.05), CK-MB and AST increased (p<0.05). PAE treatment significantly reduced the plasma levels of AST, CK-MB, and sTREM-1, compared to Model group (p<0.05). Meanwhile, sepsis-induced damages in the liver, lung, stomach and intestinal mucosa were also markedly ameliorated by PAE treatment. PAE demonstrated a significantly protective effect in a rat model of sepsis by decreasing plasma sTREM-1 level, reducing inflammation, preventing MODS and protecting organ functions.
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Affiliation(s)
| | - Jie Xu
- ICU, Tianjin TEDA Hospital, Tianjin 300457, China
| | - Yi-Min Wang
- ICU, Tianjin TEDA Hospital, Tianjin 300457, China
| | - Ming-Suo Ji
- ICU, Tianjin TEDA Hospital, Tianjin 300457, China
| | - Fu-Shan Liu
- ICU, Tianjin TEDA Hospital, Tianjin 300457, China
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16
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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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17
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Tahar R, Albergaria C, Zeghidour N, Ngane VF, Basco LK, Roussilhon C. Plasma levels of eight different mediators and their potential as biomarkers of various clinical malaria conditions in African children. Malar J 2016; 15:337. [PMID: 27357958 PMCID: PMC4928328 DOI: 10.1186/s12936-016-1378-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 06/08/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Plasmodium falciparum infection can lead to several clinical manifestations ranging from asymptomatic infections (AM) and uncomplicated malaria (UM) to potentially fatal severe malaria (SM), including cerebral malaria (CM). Factors implicated in the progression towards severe disease are not fully understood. METHODS In the present study, an enzyme-linked immunosorbent assay (ELISA) method was used to investigate the plasma content of several biomarkers of the immune response, namely Neopterin, sCD163, suPAR, Pentraxin 3 (PTX3), sCD14, Fractalkine (CX3CL1), sTREM-1 and MIG (CXCL9), in patients with distinct clinical manifestations of malaria. The goal of this study was to determine the relative involvement of these inflammatory mediators in the pathogenesis of malaria and test their relevance as biomarkers of disease severity. RESULTS ROC curve analysis show that children with AM were characterized by high levels of Fractalkine and sCD163 whereas children with UM were distinguishable by the presence of PTX3 in their plasma. Furthermore, principal component analysis indicated that the combination of Fractalkine, MIG, and Neopterin was the best predictor of AM condition, while suPAR, PTX3 and sTREM-1 combination was the best indicator of UM when compared to AM. The association of Neopterin, suPAR and Fractalkine was strongly predictive of SM or CM compared to UM. CONCLUSIONS The results indicate that the simultaneous evaluation of these bioactive molecules as quantifiable blood parameters may be helpful to get a better insight into the clinical syndromes in children with malaria.
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Affiliation(s)
- Rachida Tahar
- Institut de Recherche pour le Développement (IRD), UMR 216 Mère et Enfant Face aux Infections Tropicales, Université Paris-Descartes, Près Sorbonne Paris-Cité, 4, Avenue de l'Observatoire, 75270, Paris, France. .,Faculté de Pharmacie, Près Sorbonne Paris Cité, Université Paris-Descartes, 75270, Paris, France. .,Organisation de Coordination pour la lutte contre les Endémies en Afrique Centrale (OCEAC), Laboratoire de Recherche sur le Paludisme, B. P. 288, Yaoundé, Cameroon.
| | - Catarina Albergaria
- Unité de Génétique fonctionnelle des maladies infectieuses, Départment Génomes et Génétique, Institut Pasteur, 28 Rue du Docteur Roux, et CNRS, Unité de recherche associée 3012, 75015, Paris, France.,Champalimaud Neuroscience Programme, Champalimaud Centre for the Unknown, 1400038, Lisbon, Portugal
| | - Neil Zeghidour
- Ecole Centrale de Paris, Université Paris-Saclay, UniverSud Paris, Grande Voie des Vignes, 92295, Châtenay-Malabry, France
| | - Vincent Foumane Ngane
- Organisation de Coordination pour la lutte contre les Endémies en Afrique Centrale (OCEAC), Laboratoire de Recherche sur le Paludisme, B. P. 288, Yaoundé, Cameroon
| | - Leonardo K Basco
- Organisation de Coordination pour la lutte contre les Endémies en Afrique Centrale (OCEAC), Laboratoire de Recherche sur le Paludisme, B. P. 288, Yaoundé, Cameroon.,Institut de Recherche pour le Développement (IRD), UMR 198 Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes, Faculté de Médecine La Timone, Aix-Marseille Université, 13385, Marseille, France
| | - Christian Roussilhon
- Unité de Génétique fonctionnelle des maladies infectieuses, Départment Génomes et Génétique, Institut Pasteur, 28 Rue du Docteur Roux, et CNRS, Unité de recherche associée 3012, 75015, Paris, France
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18
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Scicluna BP, Klein Klouwenberg PMC, van Vught LA, Wiewel MA, Ong DSY, Zwinderman AH, Franitza M, Toliat MR, Nürnberg P, Hoogendijk AJ, Horn J, Cremer OL, Schultz MJ, Bonten MJ, van der Poll T. A molecular biomarker to diagnose community-acquired pneumonia on intensive care unit admission. Am J Respir Crit Care Med 2016; 192:826-35. [PMID: 26121490 DOI: 10.1164/rccm.201502-0355oc] [Citation(s) in RCA: 150] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
RATIONALE Community-acquired pneumonia (CAP) accounts for a major proportion of intensive care unit (ICU) admissions for respiratory failure and sepsis. Diagnostic uncertainty complicates case management, which may delay appropriate cause-specific treatment. OBJECTIVES To characterize the blood genomic response in patients with suspected CAP and identify a candidate biomarker for the rapid diagnosis of CAP on ICU admission. METHODS The study comprised two cohorts of consecutively enrolled patients treated for suspected CAP on ICU admission. Patients were designated CAP (cases) and no-CAP patients (control subjects) by post hoc assessment. The first (discovery) cohort (101 CAP and 33 no-CAP patients) was enrolled between January 2011 and July 2012; the second (validation) cohort (70 CAP and 30 no-CAP patients) between July 2012 and June 2013. Blood was collected within 24 hours of ICU admission. MEASUREMENTS AND MAIN RESULTS Blood microarray analysis of CAP and no-CAP patients revealed shared and distinct gene expression patterns. A 78-gene signature was defined for CAP, from which a FAIM3:PLAC8 gene expression ratio was derived with area under curve of 0.845 (95% confidence interval, 0.764-0.917) and positive and negative predictive values of 83% and 81%, respectively. Robustness of the FAIM3:PLAC8 ratio was ascertained by quantitative polymerase chain reaction in the validation cohort. The FAIM3:PLAC8 ratio outperformed plasma procalcitonin and IL-8 and IL-6 in discriminating between CAP and no-CAP patients. CONCLUSIONS CAP and no-CAP patients presented shared and distinct blood genomic responses. We propose the FAIM3:PLAC8 ratio as a candidate biomarker to assist in the rapid diagnosis of CAP on ICU admission. Clinical trial registered with www.clinicaltrials.gov (NCT 01905033).
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Affiliation(s)
- Brendon P Scicluna
- 1 Center for Experimental Molecular Medicine and Center for Infection and Immunity Amsterdam
| | - Peter M C Klein Klouwenberg
- 2 Department of Intensive Care Medicine.,3 Department of Medical Microbiology, and.,4 Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands; and
| | - Lonneke A van Vught
- 1 Center for Experimental Molecular Medicine and Center for Infection and Immunity Amsterdam
| | - Maryse A Wiewel
- 1 Center for Experimental Molecular Medicine and Center for Infection and Immunity Amsterdam
| | - David S Y Ong
- 2 Department of Intensive Care Medicine.,3 Department of Medical Microbiology, and.,4 Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands; and
| | | | - Marek Franitza
- 6 Cologne Center for Genomics.,7 Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, and
| | | | - Peter Nürnberg
- 6 Cologne Center for Genomics.,7 Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, and.,8 Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Arie J Hoogendijk
- 1 Center for Experimental Molecular Medicine and Center for Infection and Immunity Amsterdam
| | | | | | | | - Marc J Bonten
- 3 Department of Medical Microbiology, and.,4 Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands; and
| | - Tom van der Poll
- 1 Center for Experimental Molecular Medicine and Center for Infection and Immunity Amsterdam.,10 Division of Infectious Diseases, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands
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19
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Umbro I, Gentile G, Tinti F, Muiesan P, Mitterhofer AP. Recent advances in pathophysiology and biomarkers of sepsis-induced acute kidney injury. J Infect 2015; 72:131-42. [PMID: 26702738 DOI: 10.1016/j.jinf.2015.11.008] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 11/24/2015] [Accepted: 11/28/2015] [Indexed: 12/26/2022]
Abstract
Sepsis is a complex clinical syndrome characterized by a systemic inflammatory response to an infective insult. This process often leads to widespread tissue injury and multiple organ dysfunction. In particular, the development of acute kidney injury (AKI) is one of the most frequent complications, which increases the complexity and cost of care, and is an independent risk factor for mortality. Previous suggestions highlighting systemic hypotension, renal vasoconstriction and ischaemia-reperfusion injury as the primary pathophysiological mechanisms involved in sepsis-induced AKI have been challenged. Recently it has been shown that sepsis-induced AKI occurs in the setting of microvascular dysfunction with release of microparticles, inflammation and energetic adaptation of highly metabolic organs to cellular stress. The intolerable high mortality rate associated with sepsis-induced AKI is partially explained by an incomplete understanding of its pathophysiology and a delay in diagnosis. The aim of this review is to focus on advances in understanding the sepsis pathophysiology, with particular attention to the fundamental mechanisms of sepsis-induced AKI and the potential diagnostic and prognostic markers involved.
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Affiliation(s)
- Ilaria Umbro
- The Liver Unit, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Edgbaston, B15 2GW Birmingham, United Kingdom; Department of Clinical Medicine, Nephrology and Dialysis B, Sapienza University of Rome, Viale dell'Università 37, 00185 Rome, Italy.
| | - Giuseppe Gentile
- Department of Cellular Biotechnologies and Hematology, Sapienza University of Rome, Via Benevento 6, 00185 Rome, Italy.
| | - Francesca Tinti
- The Liver Unit, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Edgbaston, B15 2GW Birmingham, United Kingdom; Department of Clinical Medicine, Nephrology and Dialysis B, Sapienza University of Rome, Viale dell'Università 37, 00185 Rome, Italy.
| | - Paolo Muiesan
- The Liver Unit, Queen Elizabeth Hospital Birmingham, Mindelsohn Way, Edgbaston, B15 2GW Birmingham, United Kingdom.
| | - Anna Paola Mitterhofer
- Department of Clinical Medicine, Nephrology and Dialysis B, Sapienza University of Rome, Viale dell'Università 37, 00185 Rome, Italy.
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20
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Hasibeder A, Stein P, Brandwijk R, Schild H, Radsak MP. Evaluation and Validation of the Detection of soluble Triggering Receptor Expressed on Myeloid Cells 1 by Enzyme-linked immunosorbent Assay. Sci Rep 2015; 5:15381. [PMID: 26480887 PMCID: PMC4612298 DOI: 10.1038/srep15381] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 09/23/2015] [Indexed: 12/14/2022] Open
Abstract
Triggering receptor expressed on myeloid cells (TREM)-1 plays an important role in innate immune responses and is upregulated under infectious as well as non-infectious conditions. In addition, a soluble TREM-1 variant (sTREM-1) is detectable in sera or bronchoalveolar-lavage fluids from patients. Currently, various studies are difficult to compare, since the methods of detection by enzyme-linked immunosorbent assays (ELISA) vary among different research groups. In this study, we compared three different s-TREM-1 specific ELISAs and identified individual assay characteristics finding notable differences in sTREM-1 concentrations in part depending on the employed buffers. Investigating potential confounding factors for sTREM-1 detection, serum heat-inactivation (HI) showed improved recovery compared to non-HI (NHI) serum, reproducible by addition of complement and re-heat-inactivation. Hence we identified complement as a heat-sensitive confounder in some sTREM-1 ELISAs. We conclude that it is difficult to directly compare data of several studies, in particular if different ELISAs are engaged. Immunoassays for research use only are in general hampered by lack of standardization. Further standardization is needed until sTREM-1 ELISA is capable for better reproducibility of studies and clinical application.
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Affiliation(s)
- Astrid Hasibeder
- IIIrd Department of Medicine, Johannes-Gutenberg University Medical Center, Mainz, Germany
| | - Pamela Stein
- Center for Thrombosis and Haemostasis, Johannes-Gutenberg University Medical Center, Mainz, Germany
| | | | - Hansjörg Schild
- Institute of Immunology, Johannes-Gutenberg University Medical Center, Mainz, Germany
| | - Markus P Radsak
- IIIrd Department of Medicine, Johannes-Gutenberg University Medical Center, Mainz, Germany
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21
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Jérémie L, Amir B, Marc D, Sébastien G. The Triggering Receptor Expressed on Myeloid cells-1: A new player during acute myocardial infarction. Pharmacol Res 2015; 100:261-5. [PMID: 26318764 DOI: 10.1016/j.phrs.2015.07.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 07/28/2015] [Indexed: 01/08/2023]
Abstract
Following myocardial ischemia, an intense activation of the immune system occurs that leads to inflammatory cytokines and chemokines production and to the recruitment of neutrophils and mononuclear cells in the infarcted area. Although pro-inflammatory signals initiate the cellular events necessary for scar formation, excessive and prolonged inflammation promotes deleterious cardiac remodeling and dysfunction. The triggering receptor expressed on myeloid cells-1 (TREM-1) is a highly conserved immune-receptor expressed by neutrophils and monocytes that acts as an amplifier of the innate immune response. Blockade of TREM-1 activation protects from hyper-responsiveness and death during severe infections. Here we review the role of TREM-1 in orchestrating the inflammatory response that follows MI. TREM-1 deletion (Trem-1-/-) or modulation by the use of a short inhibitory peptide (LR12) dampens myocardial inflammation, limits leukocyte recruitment, and improves heart function and survival in mice or pigs. Moreover, the soluble form of TREM-1 (sTREM-1) is found in the plasma of patients suffering from an acute MI and its concentration is an independent predictor of death. This suggests that TREM-1 may constitute a new therapeutic target during acute MI.
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Affiliation(s)
- Lemarié Jérémie
- Service de Réanimation Médicale, Hôpital Central, CHU Nancy, Université de Lorraine, Nancy, France; Inserm UMR_S1116, Faculté de Médecine de Nancy, Université de Lorraine, Vandoeuvre-les-Nancy, France
| | | | | | - Gibot Sébastien
- Service de Réanimation Médicale, Hôpital Central, CHU Nancy, Université de Lorraine, Nancy, France; Inserm UMR_S1116, Faculté de Médecine de Nancy, Université de Lorraine, Vandoeuvre-les-Nancy, France.
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22
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Su L, Xie L, Liu D. Urine sTREM-1 may be a valuable biomarker in diagnosis and prognosis of sepsis-associated acute kidney injury. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2015; 19:281. [PMID: 26169055 PMCID: PMC4501200 DOI: 10.1186/s13054-015-0998-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Urine soluble triggering receptor expressed on myeloid cells-1 (sTREM-1) has been reported in sepsis diagnosis and prediction of sepsis-associated acute kidney injury (AKI). However, the mechanisms of the role of sTREM-1 for AKI remain unclear. It may be that topical inflammatory response of kidney, not just systemic inflammation, contributes to the elevated secretion of urine sTREM-1 in the process of sepsis-associated AKI. To further evaluate the role of sTREM-1 in this process, a larger-cohort multicenter study and the relevant basic research should be performed to reveal the diagnostic value and mechanism of sTREM-1 during the sepsis-associated AKI process. If successful, then urine sTREM-1 would be a good marker for sepsis and its associated AKI and could contribute to non-invasive diagnosis and monitoring in the clinical setting. Additionally, owing to the complexity of the pathogenesis of sepsis, it is necessary to combine some biomarkers to improve diagnostic performance in the diagnosis of sepsis-associated AKI rather than relying on a single marker.
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Affiliation(s)
- Longxiang Su
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, 1st Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Lixin Xie
- Department of Pulmonary & Critical Care Medicine, Chinese PLA General Hospital, 28th Fuxing Road, Haidian District, Beijing, 100853, China
| | - Dawei Liu
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, 1st Shuaifuyuan, Dongcheng District, Beijing, 100730, China.
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