1
|
Li G, Yang Z, Yang C, Xie Y, Gong S, Lv S, Xiao B, Wang J, Weng Q, Wang J, Yu F. Single-cell RNA sequencing reveals cell-cell communication and potential biomarker in sepsis and septic shock patients. Int Immunopharmacol 2024; 132:111938. [PMID: 38593502 DOI: 10.1016/j.intimp.2024.111938] [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: 02/26/2024] [Revised: 03/25/2024] [Accepted: 03/25/2024] [Indexed: 04/11/2024]
Abstract
BACKGROUND Sepsis is a disease characterized by infection-induced multiorgan dysfunction, which can progress to septic shock if not promptly treated. Early identification of sepsis is crucial for its treatment. However, there are currently limited specific biomarkers for sepsis or septic shock. This study aims to identify potential biomarkers for sepsis and septic shock. METHODS We analyzed single-cell transcriptomic data of peripheral blood mononuclear cells (PBMCs) from healthy individuals, sepsis and septic shock patients, identified differences in gene expression and cell-cell communication between different cell types during disease progression. Moreover, our analyses were further validated with flow cytometry and bulk RNA-seq data. RESULTS Our study elucidates the alterations in cellular proportions and cell-cell communication among healthy controls, sepsis, and septic shock patients. We identified a specific augmentation in the Resistin signaling within sepsis monocytes, mediated via RETN-CAP1 ligand-receptor pairs. Additionally, we observed enhanced IL16 signaling within monocytes from septic shock patients, mediated through IL16-CD4 ligand-receptor pairs. Subsequently, we confirmed our findings by validating the increase in CAP-1+ monocytes in sepsis and IL16+ monocytes in septic shock in mouse models. And a significant upregulation of CAP-1 and IL16 was also observed in the bulk RNA-seq data from patients with sepsis and septic shock. Furthermore, we identified four distinct clusters of CD14+ monocytes, highlighting the heterogeneity of monocytes in the progress of sepsis. CONCLUSIONS In summary, our work demonstrates changes in cell-cell communication of healthy controls, sepsis and septic shock, confirming that the molecules CAP-1 and IL16 on monocytes may serve as potential diagnostic markers for sepsis and septic shock, respectively. These findings provide new insights for early diagnosis and stratified treatment of the disease.
Collapse
Affiliation(s)
- Guilin Li
- Center for Drug Safety Evaluation and Research, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310007, China
| | - Zhaoxu Yang
- Center for Drug Safety Evaluation and Research, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310007, China
| | - Chen Yang
- Center for Drug Safety Evaluation and Research, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310007, China
| | - Yaochen Xie
- Center for Drug Safety Evaluation and Research, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310007, China
| | - Shuchen Gong
- Center for Drug Safety Evaluation and Research, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310007, China
| | - Shuying Lv
- Center for Drug Safety Evaluation and Research, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310007, China
| | - Boneng Xiao
- Center for Drug Safety Evaluation and Research, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310007, China; Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jiajia Wang
- Center for Drug Safety Evaluation and Research, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310007, China
| | - Qinjie Weng
- Center for Drug Safety Evaluation and Research, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310007, China; Taizhou Institute of Zhejiang University, Taizhou 318000, China; State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Jincheng Wang
- Center for Drug Safety Evaluation and Research, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310007, China; Taizhou Institute of Zhejiang University, Taizhou 318000, China; Beijing Life Science Academy, Beijing 102200, China.
| | - Feng Yu
- Department of Colorectal Surgery, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China.
| |
Collapse
|
2
|
Bertolotto M, Verzola D, Contini P, de Totero D, Tirandi A, Ramoni D, Ministrini S, Giacobbe DR, Bonaventura A, Vecchié A, Castellani L, Mirabella M, Arboscello E, Liberale L, Viazzi F, Bassetti M, Montecucco F, Carbone F. Osteopontin is associated with neutrophil extracellular trap formation in elderly patients with severe sepsis. Eur J Clin Invest 2024; 54:e14159. [PMID: 38264915 DOI: 10.1111/eci.14159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/01/2023] [Accepted: 12/06/2023] [Indexed: 01/25/2024]
Affiliation(s)
- Maria Bertolotto
- Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Daniela Verzola
- Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Paola Contini
- Department of Internal Medicine, University of Genoa, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Daniela de Totero
- Molecular Pathology Unit IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Amedeo Tirandi
- Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Davide Ramoni
- Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Stefano Ministrini
- Center for Molecular Cardiology, University of Zurich, Schlieren, Switzerland
| | - Daniele Roberto Giacobbe
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Aldo Bonaventura
- Medicina Generale 1, Medical Center, Ospedale di Circolo e Fondazione Macchi, ASST Sette Laghi, Varese, Italy
| | - Alessandra Vecchié
- Medicina Generale 1, Medical Center, Ospedale di Circolo e Fondazione Macchi, ASST Sette Laghi, Varese, Italy
| | | | | | | | - Luca Liberale
- Department of Internal Medicine, University of Genoa, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino Genoa, Italian Cardiovascular Network, Genoa, Italy
| | - Francesca Viazzi
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Clinic of Nephrology, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Matteo Bassetti
- IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Fabrizio Montecucco
- Department of Internal Medicine, University of Genoa, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino Genoa, Italian Cardiovascular Network, Genoa, Italy
| | - Federico Carbone
- Department of Internal Medicine, University of Genoa, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino Genoa, Italian Cardiovascular Network, Genoa, Italy
| |
Collapse
|
3
|
de Nooijer AH, Pickkers P, Netea MG, Kox M. Inflammatory biomarkers to predict the prognosis of acute bacterial and viral infections. J Crit Care 2023; 78:154360. [PMID: 37343422 DOI: 10.1016/j.jcrc.2023.154360] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 06/07/2023] [Indexed: 06/23/2023]
Abstract
Mortality in acute infections is mostly associated with sepsis, defined as 'life-threatening organ dysfunction caused by a dysregulated host response to infection'. It remains challenging to identify the patients with increased mortality risk due to the high heterogeneity in the dysregulated host immune response and disease progression. Biomarkers reflecting different pathways involved in the inflammatory response might improve prediction of mortality risk (prognostic enrichment) among patients with acute infections by reducing heterogeneity of the host response, as well as suggest novel strategies for patient stratification and treatment (predictive enrichment) through precision medicine approaches. The predictive value of inflammatory biomarkers has been extensively investigated in bacterial infections and the recent COVID-19 pandemic caused an increased interest in inflammatory biomarkers in this viral infection. However, limited research investigated whether the prognostic potential of these biomarkers differs between bacterial and viral infections. In this narrative review, we provide an overview of the value of various inflammatory biomarkers for the prediction of mortality in bacterial and viral infections.
Collapse
Affiliation(s)
- Aline H de Nooijer
- Department of Internal Medicine, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Department of Intensive Care Medicine, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Radboud University Medical Center for Infectious Diseases, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Peter Pickkers
- Department of Intensive Care Medicine, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Radboud University Medical Center for Infectious Diseases, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Mihai G Netea
- Department of Internal Medicine, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Radboud University Medical Center for Infectious Diseases, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Department of Immunology and Metabolism, Life & Medical Sciences Institute, University of Bonn, 53115 Bonn, Germany
| | - Matthijs Kox
- Department of Intensive Care Medicine, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands; Radboud University Medical Center for Infectious Diseases, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands.
| |
Collapse
|
4
|
Barber G, Tanic J, Leligdowicz A. Circulating protein and lipid markers of early sepsis diagnosis and prognosis: a scoping review. Curr Opin Lipidol 2023; 34:70-81. [PMID: 36861948 DOI: 10.1097/mol.0000000000000870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
PURPOSE OF REVIEW Sepsis is the extreme response to infection associated with high mortality, yet reliable biomarkers for its identification and stratification are lacking. RECENT FINDINGS Our scoping review of studies published from January 2017 to September 2022 that investigated circulating protein and lipid markers to inform non-COVID-19 sepsis diagnosis and prognosis identified interleukin (IL)-6, IL-8, heparin-binding protein (HBP), and angiopoietin-2 as having the most evidence. Biomarkers can be grouped according to sepsis pathobiology to inform biological data interpretation and four such physiologic processes include: immune regulation, endothelial injury and coagulopathy, cellular injury, and organ injury. Relative to proteins, the pleiotropic effects of lipid species' render their categorization more difficult. Circulating lipids are relatively less well studied in sepsis, however, low high-density lipoprotein (HDL) is associated with poor outcome. SUMMARY There is a lack of robust, large, and multicenter studies to support the routine use of circulating proteins and lipids for sepsis diagnosis or prognosis. Future studies will benefit from standardizing cohort design as well as analytical and reporting strategies. Incorporating biomarker dynamic changes and clinical data in statistical modeling may improve specificity for sepsis diagnosis and prognosis. To guide future clinical decisions at the bedside, point-of-care circulating biomarker quantification is needed.
Collapse
Affiliation(s)
- Gemma Barber
- Schulich School of Medicine and Dentistry
- Robarts Research Insitute
| | | | - Aleksandra Leligdowicz
- Schulich School of Medicine and Dentistry
- Robarts Research Insitute
- Department of Medicine, Division of Critical Care, Western University, London, ON, Canada
| |
Collapse
|
5
|
Martinez GS, Ostadgavahi AT, Al-Rafat AM, Garduno A, Cusack R, Bermejo-Martin JF, Martin-Loeches I, Kelvin D. Model-interpreted outcomes of artificial neural networks classifying immune biomarkers associated with severe infections in ICU. Front Immunol 2023; 14:1137850. [PMID: 36969221 PMCID: PMC10034398 DOI: 10.3389/fimmu.2023.1137850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 02/27/2023] [Indexed: 03/11/2023] Open
Abstract
IntroductionMillions of deaths worldwide are a result of sepsis (viral and bacterial) and septic shock syndromes which originate from microbial infections and cause a dysregulated host immune response. These diseases share both clinical and immunological patterns that involve a plethora of biomarkers that can be quantified and used to explain the severity level of the disease. Therefore, we hypothesize that the severity of sepsis and septic shock in patients is a function of the concentration of biomarkers of patients.MethodsIn our work, we quantified data from 30 biomarkers with direct immune function. We used distinct Feature Selection algorithms to isolate biomarkers to be fed into machine learning algorithms, whose mapping of the decision process would allow us to propose an early diagnostic tool.ResultsWe isolated two biomarkers, i.e., Programmed Death Ligand-1 and Myeloperoxidase, that were flagged by the interpretation of an Artificial Neural Network. The upregulation of both biomarkers was indicated as contributing to increase the severity level in sepsis (viral and bacterial induced) and septic shock patients.DiscussionIn conclusion, we built a function considering biomarker concentrations to explain severity among sepsis, sepsis COVID, and septic shock patients. The rules of this function include biomarkers with known medical, biological, and immunological activity, favoring the development of an early diagnosis system based in knowledge extracted from artificial intelligence.
Collapse
Affiliation(s)
- Gustavo Sganzerla Martinez
- Laboratory of Emerging Infectious Diseases, Department of Immunology and Microbiology, Dalhousie University, Halifax, NS, Canada
- Department of Pediatrics, Izaak Walton Killan (IWK) Health Center, CCfV, Halifax, NS, Canada
- *Correspondence: David Kelvin, ; Gustavo Sganzerla Martinez,
| | - Ali Toloue Ostadgavahi
- Laboratory of Emerging Infectious Diseases, Department of Immunology and Microbiology, Dalhousie University, Halifax, NS, Canada
- Department of Pediatrics, Izaak Walton Killan (IWK) Health Center, CCfV, Halifax, NS, Canada
| | - Abdullah Mahmud Al-Rafat
- Laboratory of Emerging Infectious Diseases, Department of Immunology and Microbiology, Dalhousie University, Halifax, NS, Canada
- Department of Pediatrics, Izaak Walton Killan (IWK) Health Center, CCfV, Halifax, NS, Canada
| | - Alexis Garduno
- Department of Clinical Medicine, Trinity College, University of Dublin, Dublin, Ireland
| | - Rachael Cusack
- Department of Clinical Medicine, Trinity College, University of Dublin, Dublin, Ireland
| | - Jesus Francisco Bermejo-Martin
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Gerencia Regional de Salud de Castilla y León, Paseo de San Vicente, Salamanca, Spain
- Universidad de Salamanca, C. Alfonso X el Sabio, s/n, Salamanca, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Respiratorias (CIBERES), CB22/06/00035, Instituto de Salud Carlos III, Avenida de Monforte de Lemos, Madrid, Spain
| | | | - David Kelvin
- Laboratory of Emerging Infectious Diseases, Department of Immunology and Microbiology, Dalhousie University, Halifax, NS, Canada
- Department of Pediatrics, Izaak Walton Killan (IWK) Health Center, CCfV, Halifax, NS, Canada
- *Correspondence: David Kelvin, ; Gustavo Sganzerla Martinez,
| |
Collapse
|
6
|
Mishra P, Pandey R, Pandey N, Tripathi S, Tripathi YB. Prevention of mortality in acute lung injury induced by oleic acid: Application of polyherbal decoction (bronco T). Front Cell Dev Biol 2022; 10:1003767. [PMID: 36313556 PMCID: PMC9612945 DOI: 10.3389/fcell.2022.1003767] [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] [Received: 07/26/2022] [Accepted: 09/27/2022] [Indexed: 11/25/2022] Open
Abstract
Acute lung injury (ALI) is a lethal respiratory disorder; directed uncontrolled inflammation, sloughing of the alveolar cells and their diffusion, and altered cardiorespiratory parameters with a global mortality rate of 40%. This study was designed to assess the preventive effect of a polyherbal decoction (Bronco T, 1.5 g/kg b. w.) on cardiorespiratory variables in oleic acid-induced ALI in rats. Oleic acid increases the level of neutrophil infiltration leading to pulmonary edema and alters the cardiorespiratory dynamics. The adult male rats were surgically cannulated and treated with intravenous oleic acid (0.38 ml/kg b. w.) to establish the ALI model. Bronco T was pre-administered orally 3 hours before oleic acid. The biophysical, histological, biochemical, and molecular effects were compared with dexamethasone (5 mg/kg b. w. i. p.). The animals were randomly divided into control, lethal, standard, and treatment groups. Respiratory frequency (RF), heart rate (HR), and mean arterial pressure (MAP) were recorded on a computerized chart recorder; arterial blood sample was collected to determine PaO2/FiO2, TNF-α, and MPO. Lipid peroxidation, superoxide dismutase, and catalase activity were evaluated to measure oxidative stress in bronchoalveolar lavage. Additionally, the pulmonary water content, COX-2 expression and histological examination were determined in the lung. A molecular docking study of the active phytoconstituent of BT obtained from HR-LCMS analysis against reported targets (IL-6, COX-2, TNFα, MPO and ENaC) of ALI was carried out. The B.T. pretreatment prevents mortality in comparison to the oleic acid group. It protects the lungs and heart from the detrimental effect of oleic acid, on par with dexamethasone. COX-2 mRNA expression was significantly down-regulated in the treatment group. The reduced level of TNF-α, MPO, SOD and catalase supported the protective effect of B.T. The in silico study revealed strong binding interaction between the phytoconstituent (Galangin 3- [galactosyl-(1–4)-rhamnoside and Beta solamarine] of BT and the reported target. The B.T. pre-administration attenuates the oleic acid-induced mortality and cardiorespiratory toxicity.
Collapse
Affiliation(s)
- Priyanka Mishra
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Ratna Pandey
- Department of Physiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Nikhil Pandey
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Suyash Tripathi
- Department of Cardiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Yamini Bhusan Tripathi
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
- *Correspondence: Yamini Bhusan Tripathi,
| |
Collapse
|
7
|
Senousy SR, Ahmed ASF, Abdelhafeez DA, Khalifa MMA, Abourehab MAS, El-Daly M. Alpha-Chymotrypsin Protects Against Acute Lung, Kidney, and Liver Injuries and Increases Survival in CLP-Induced Sepsis in Rats Through Inhibition of TLR4/NF-κB Pathway. Drug Des Devel Ther 2022; 16:3023-3039. [PMID: 36105322 PMCID: PMC9467300 DOI: 10.2147/dddt.s370460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 08/11/2022] [Indexed: 11/23/2022] Open
Abstract
Abstract Inflammation and oxidative stress play a major role in the development of sepsis and its associated complications, leading to multiple organ failure and death. The lungs, liver, and kidneys are among the early affected organs correlated with mortality in sepsis. Alpha-chymotrypsin (α-ch) is a serine protease that exerts anti-inflammatory, anti-edematous, and anti-oxidant properties. Purpose This study was undertaken to elucidate if the anti-inflammatory and anti-oxidant effects of α-ch observed in previous studies can alleviate lung, liver, and kidney injuries in a cecal ligation and puncture (CLP)-induced sepsis model, and thus decrease mortality. Materials and Methods Septic animals were given α-ch 2 h post CLP procedure. Sepsis outcomes were assessed in the lungs, liver, and kidneys. Separate animal groups were investigated for a survival study. Results CLP resulted in 0% survival, while α-chymotrypsin post-treatment led to 50% survival at the end of the study. Administration of α-chymotrypsin resulted in a significant attenuation of sepsis-induced elevated malonaldehyde (MDA) and total nitrite/nitrate (NOx) levels. In addition, there was a significant increase in reduced glutathione (GSH) content and superoxide dismutase (SOD) activity in the lungs, liver, and kidneys. Administration of α-ch reduced elevated tissue expression of toll-like receptor-4 (TLR4), nuclear factor kappa-B (NF-κB), myeloperoxidase (MPO), and inducible nitric oxide synthase (iNOS). Alpha-chymotrypsin resulted in a significant reduction in serum levels of tumor necrosis factor-alpha (TNF-α), interleukin-1 beta (IL-1β), and interleukin-6 (IL-6). Alpha-chymotrypsin attenuated the rise in serum creatinine, cystatin C, blood urea nitrogen (BUN), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) levels that was observed in the septic group. In addition, α-ch significantly reduced the lung wet/dry weight ratio, total protein content, and leukocytic counts in bronchoalveolar lavage fluid (BALF). Histopathological examination of the lungs, liver, and kidneys confirmed the protective effects of α-ch on those organs. Conclusion α-ch has protective potential against sepsis through lowering tissue expression of TLR4, NF-κB, MPO, and iNOS leading to decreased oxidative stress and inflammatory signals induced by sepsis. This effect appeared to alleviate the damage to the lungs, liver, and kidneys and increase survival in rats subjected to sepsis.
Collapse
Affiliation(s)
- Shaymaa Ramzy Senousy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt
| | - Al-Shaimaa F Ahmed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt
- Correspondence: Al-Shaimaa F Ahmed, Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, Minia, Egypt, Tel +20 1020018842, Email
| | - Dalia A Abdelhafeez
- Department of Pathology, Faculty of Medicine, Minia University, Minia, Egypt
| | | | - Mohammed A S Abourehab
- Department of Pharmaceutics, Faculty of Pharmacy, Umm Al-Qura University, Makkah, 21955, Saudi Arabia
| | - Mahmoud El-Daly
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Minia University, Minia, 61519, Egypt
| |
Collapse
|
8
|
Wu Y, Li D, Wang H, Wan X. Protective Effect of Poria Cocos Polysaccharides on Fecal Peritonitis-Induced Sepsis in Mice Through Inhibition of Oxidative Stress, Inflammation, Apoptosis, and Reduction of Treg Cells. Front Microbiol 2022; 13:887949. [PMID: 35694296 PMCID: PMC9184799 DOI: 10.3389/fmicb.2022.887949] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 04/14/2022] [Indexed: 12/29/2022] Open
Abstract
This study was conducted to investigate the potential pharmacological effects of Poria cocos polysaccharides (PCPs) on fecal-induced peritonitis (FIP) mice. Consequently, the fecal peritonitis (FP)-induced septic mice with the higher levels of tumor necrosis factor-α (TNF-α), interleukin 6 (IL-6), IL-1β, malondialdehyde (MDA), myeloperoxidase (MPO), histopathological lesion and bacterial burden, and lower levels of superoxide dismutase (SOD) and glutathione (GSH). Interestingly, PCP pre-treatment reduced inflammatory cytokines and oxidative stress in plasma and spleen and improved the resistance to FIP. Inflammatory infiltration and cell death in thymus or splenic tissue were alleviated with PCP pretreatment. Furthermore, Treg cells were moderated in the spleen with PCP pre-administration. In addition, PCP pretreatment downregulated Annexin-V in the thymus of FP-induced septic mice, and apoptosis of splenic cells was dose-dependent. In conclusion, PCPs have pharmacological and biological effects on FP-induced septic mice, and its molecular mechanism is related to antioxidative, anti-inflammation, anti-apoptosis, and the reduction of Treg activity in splenic cells.
Collapse
Affiliation(s)
- Yu Wu
- Department of Anesthesiology and Intensive Care Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
- Department of Anesthesiology, Bethune International Peace Hospital, Shijiazhuang, China
| | - Dai Li
- Department of Anesthesiology and Intensive Care Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Han Wang
- Department of Anesthesiology and Intensive Care Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xiaojian Wan
- Department of Anesthesiology and Intensive Care Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
- *Correspondence: Xiaojian Wan
| |
Collapse
|
9
|
Chen L, Jin S, Yang M, Gui C, Yuan Y, Dong G, Zeng W, Zeng J, Hu G, Qiao L, Wang J, Xi Y, Sun J, Wang N, Wang M, Xing L, Yang Y, Teng Y, Hou J, Bi Q, Cai H, Zhang G, Hong Y, Zhang Z. Integrated Single Cell and Bulk RNA-Seq Analysis Revealed Immunomodulatory Effects of Ulinastatin in Sepsis: A Multicenter Cohort Study. Front Immunol 2022; 13:882774. [PMID: 35634310 PMCID: PMC9130465 DOI: 10.3389/fimmu.2022.882774] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 04/04/2022] [Indexed: 11/25/2022] Open
Abstract
Sepsis is a leading cause of morbidity and mortality in the intensive care unit, which is caused by unregulated inflammatory response leading to organ injuries. Ulinastatin (UTI), an immunomodulatory agent, is widely used in clinical practice and is associated with improved outcomes in sepsis. But its underlying mechanisms are largely unknown. Our study integrated bulk and single cell RNA-seq data to systematically explore the potential mechanisms of the effects of UTI in sepsis. After adjusting for potential confounders in the negative binomial regression model, there were more genes being downregulated than being upregulated in the UTI group. These down-regulated genes were enriched in the neutrophil involved immunity such as neutrophil activation and degranulation, indicating the immunomodulatory effects of UTI is mediated via regulation of neutrophil activity. By deconvoluting the bulk RNA-seq samples to obtain fractions of cell types, the Myeloid-derived suppressor cells (MDSC) were significantly expanded in the UTI treated samples. Further cell-cell communication analysis revealed some signaling pathways such as ANEEXIN, GRN and RESISTIN that might be involved in the immunomodulatory effects of UTI. The study provides a comprehensive reference map of transcriptional states of sepsis treated with UTI, as well as a general framework for studying UTI-related mechanisms.
Collapse
Affiliation(s)
- Lin Chen
- Department of Critical Care Medicine, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, China
| | - Senjun Jin
- Department of Emergency, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, Hangzhou, China
| | - Min Yang
- The 2nd Department of Intensive Care Unit, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Chunmei Gui
- Department of Critical Care Medicine, The First People’s Hospital of Changde City, Changde, China
| | - Yingpu Yuan
- Department of Critical Care Medicine, The First People’s Hospital of Changde City, Changde, China
| | - Guangtao Dong
- Department of Emergency Medicine, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Weizhong Zeng
- Department of Critical Care Medicine, Zhuzhou Central Hospital, Zhuzhou, China
| | - Jing Zeng
- Department of Critical Care Medicine, Zhuzhou Central Hospital, Zhuzhou, China
| | - Guoxin Hu
- Emergency Department, Shengli Oilfield Central Hospital, Dongying, China
| | - Lujun Qiao
- Emergency Department, Shengli Oilfield Central Hospital, Dongying, China
| | - Jinhua Wang
- Department of Critical Care Medicine, The Second Affiliated Hospital of Xi’an Medical University, Xi’an, China
| | - Yonglin Xi
- Department of Critical Care Medicine, The Second Affiliated Hospital of Xi’an Medical University, Xi’an, China
| | - Jian Sun
- Department of Critical Care Medicine, Lishui Center Hospital, Lishui, China
| | - Nan Wang
- Department of Critical Care Medicine, The Fourth Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei, China
| | - Minmin Wang
- Department of Critical Care Medicine, The Fourth Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei, China
| | - Lifeng Xing
- Department of Emergency Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yi Yang
- Department of Emergency Medicine, The Second Hospital of Jiaxing, Jiaxing, China
| | - Yan Teng
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Junxia Hou
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Qiaojie Bi
- Department of Emergency, Qingdao Municipal Hospital, QingDao University School of Medicine, Qingdao, China
| | - Huabo Cai
- Department of Emergency Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Gensheng Zhang
- Department of Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yucai Hong
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Department of Emergency Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhongheng Zhang
- Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Department of Emergency Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| |
Collapse
|
10
|
Resistin production does not affect outcomes in a mouse model of acute surgical sepsis. PLoS One 2022; 17:e0265241. [PMID: 35286340 PMCID: PMC8920279 DOI: 10.1371/journal.pone.0265241] [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] [Received: 09/14/2021] [Accepted: 02/27/2022] [Indexed: 11/19/2022] Open
Abstract
Introduction Because of the strong correlation between the blood concentration of circulating resistin and the illness severity of septic patients, resistin has been proposed as a mediator of sepsis pathophysiology. In vitro data indicate that human resistin directly impairs neutrophil migration and intracellular bacterial killing, although the significance of these findings in vivo remain unclear. Objective The objectives of the present study were: (1) to validate the expression of human resistin in a clinically relevant, murine model of surgical sepsis, (2) to assess how sepsis-induced changes in resistin correlate with markers of infection and organ dysfunction, and (3) to investigate whether the expression of human resistin alters immune function or disease outcomes in vivo. Methods 107 male, C57BL/6 mice transgenic for the human resistin gene and its promoter elements (Retn+/−/−, or Retn+) were generated on a Retn−/− (mouse resistin knockout, or Rko) background. Outcomes were compared between age-matched transgenic and knockout mice. Acute sepsis was defined as the initial 24 h following cecal ligation and puncture (CLP). Physiologic and laboratory parameters correlating to the human Sequential Organ Failure Assessment (SOFA) Score were measured in mice, and innate immune cell number/function in the blood and peritoneal cavity were assessed. Results CLP significantly increased circulating levels of human resistin. The severity of sepsis-induced leukopenia was comparable between Retn+ and Rko mice. Resistin was associated with increased production of neutrophil reactive oxygen species, a decrease in circulating neutrophils at 6 h and an increase in peritoneal Ly6Chi monocytes at 6 h and 24 h post-sepsis. However, intraperitoneal bacterial growth, organ dysfunction and mouse survival did not differ with resistin production in septic mice. Significance Ex vivo resistin-induced impairment of neutrophil function do not appear to translate to increased sepsis severity or poorer outcomes in vivo following CLP.
Collapse
|
11
|
Positive Role of Delta Neutrophil Index (DNI) as a Prodiagnostic Marker in Cecal Ligation and Puncture (CLP)-Induced Sepsis Murine Model. Medicina (B Aires) 2022; 58:medicina58030369. [PMID: 35334545 PMCID: PMC8955309 DOI: 10.3390/medicina58030369] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/14/2022] [Accepted: 02/21/2022] [Indexed: 11/17/2022] Open
Abstract
Sepsis is an emergent infectious disease and a leading cause of death despite immediate intervention. While Delta neutrophil index (DNI) and myeloperoxidase (MPO) are known as a prodiagnostic marker of sepsis, the preclinical evidence of the best marker of sepsis is unclear. For this, using a well-designed cecal ligation and puncture (CLP)-induced sepsis mouse model, we comparatively measured the level and cost-effectiveness of sepsis biomarkers such as DNI, myeloperoxidase (MPO), procalcitonin (PCT), and tumor necrosis factor-alpha (TNF-α). First, we found that the optimal time point for early detection is at 6 h, 24 h post-CLP. Strikingly, the peak level and fold change of DNI was revealed at 24 h, further showing the best fold change as compared with other biomarker levels. Given the fold change at 6, 24 h, PCT was next to DNI. Third, a cost-effectiveness survey showed that DNI was the best, with PCT next. Further, DNI level was moderate positively associated with PCT (ρ = 0.697, p = 0.012) and TNF-α (ρ = 0.599, p = 0.040). Collectively, these data indicate that DNI in CLP-induced sepsis mice is as effective as the existent inflammatory biomarkers such as MPO, PCT and TNF-α to predict the prognosis of sepsis. This might have clinically important implications that DNI is cost effective, thus quickly and rationally applying to diverse types of imminent sepsis regardless of species. This might be the first report on the validity of DNI in preclinical CLP-induced murine sepsis.
Collapse
|
12
|
Qu X, Wang S, Qu Y, Wang H, Ye X, Tang L, Xie Q. Antimicrobial Susceptibility Characteristics and Risk Factors Associated with Adult Sepsis in Wenzhou, China. Infect Drug Resist 2022; 15:915-924. [PMID: 35299859 PMCID: PMC8921831 DOI: 10.2147/idr.s352570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 02/25/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose To clarify the distribution of pathogenic bacteria by analyzing the bacterial susceptibility characteristics and risk factors for adult sepsis in The Wenzhou city, Zhejiang province, China, and to aid early diagnosis, monitoring, and prognosis prediction in cases of bacterial sepsis. Patients and Methods We retrospectively analyzed 329 patients with sepsis admitted to the Second Affiliated Hospital of Wenzhou Medical University between January 2018 and March 2021. Laboratory data were collected before and after treatment; moreover, the bacterial susceptibility characteristics and risk factors for sepsis were comprehensively analyzed using the Sequential Organ Failure Assessment (SOFA) score. Results The SOFA score was negatively correlated with the prognosis (P < 0.05). We isolated 47 pathogenic strains from blood culture samples, including 29 gram-positive strains, 18 gram-negative strains. The most common gram-negative pathogens in blood cultures are Klebsiella pneumoniae and Escherichia coli, while the most common gram-positive pathogens are Staphylococcus aureus and Staphylococcus hominis. Gram-negative pathogens had resistance rates of 77% and 62.5% to ciprofloxacin and ceftriaxone, respectively. Gram-positive bacteria had a high resistance to penicillin at 100%. Prognostic factors for sepsis included patients’ consciousness, SOFA score, prothrombin time, international normalized ratio, fibrinogen, D-dimer, and aspartate aminotransferase (P < 0.05). Of these, the D-dimer level could predict the outcome of patients with sepsis (AUC = 0.661, P < 0.05). Conclusion The pathogens detected in adult sepsis in Wenzhou are mainly Klebsiella pneumoniae, Escherichia coli, Staphylococcus aureus, and Staphylococcus hominis. The pathogens exhibited differences in drug susceptibility. The optimal antibiotics should be chosen based on the principles of rational use and drug susceptibility. Combined with D-dimer levels, these parameters can be used to determine the optimal strategy for preventing and treating pathogenic bacteria.
Collapse
Affiliation(s)
- Xiaoxiao Qu
- Department of Clinical Laboratory, The Second Affiliated Hospital & Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
| | - Shishi Wang
- Department of Clinical Laboratory, The Second Affiliated Hospital & Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
| | - Ying Qu
- Department of Clinical Laboratory, Wenzhou People’s Hospital, The Third Affiliated Hospital of Shanghai University, The Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou, Zhejiang, 325035, People’s Republic of China
| | - Huiyan Wang
- Department of Clinical Laboratory, The Second Affiliated Hospital & Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
| | - Xuanmei Ye
- Department of Clinical Laboratory, The Second Affiliated Hospital & Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
| | - Luming Tang
- Emergency Department, The Second Affiliated Hospital & Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
| | - Qipeng Xie
- Department of Clinical Laboratory, The Second Affiliated Hospital & Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, People’s Republic of China
- Correspondence: Qipeng Xie, Department of Clinical Laboratory, The Second Affiliated Hospital & Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325035, People’s Republic of China, Tel +86 151 577 87159, Email
| |
Collapse
|
13
|
Barichello T, Generoso JS, Singer M, Dal-Pizzol F. Biomarkers for sepsis: more than just fever and leukocytosis-a narrative review. Crit Care 2022; 26:14. [PMID: 34991675 PMCID: PMC8740483 DOI: 10.1186/s13054-021-03862-5] [Citation(s) in RCA: 130] [Impact Index Per Article: 65.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 12/08/2021] [Indexed: 02/08/2023] Open
Abstract
A biomarker describes a measurable indicator of a patient's clinical condition that can be measured accurately and reproducibly. Biomarkers offer utility for diagnosis, prognosis, early disease recognition, risk stratification, appropriate treatment (theranostics), and trial enrichment for patients with sepsis or suspected sepsis. In this narrative review, we aim to answer the question, "Do biomarkers in patients with sepsis or septic shock predict mortality, multiple organ dysfunction syndrome (MODS), or organ dysfunction?" We also discuss the role of pro- and anti-inflammatory biomarkers and biomarkers associated with intestinal permeability, endothelial injury, organ dysfunction, blood-brain barrier (BBB) breakdown, brain injury, and short and long-term mortality. For sepsis, a range of biomarkers is identified, including fluid phase pattern recognition molecules (PRMs), complement system, cytokines, chemokines, damage-associated molecular patterns (DAMPs), non-coding RNAs, miRNAs, cell membrane receptors, cell proteins, metabolites, and soluble receptors. We also provide an overview of immune response biomarkers that can help identify or differentiate between systemic inflammatory response syndrome (SIRS), sepsis, septic shock, and sepsis-associated encephalopathy. However, significant work is needed to identify the optimal combinations of biomarkers that can augment diagnosis, treatment, and good patient outcomes.
Collapse
Affiliation(s)
- Tatiana Barichello
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC Brazil
- Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX 77054 USA
| | - Jaqueline S. Generoso
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC Brazil
| | - Mervyn Singer
- Bloomsbury Institute of Intensive Care Medicine, Division of Medicine, University College London, London, UK
| | - Felipe Dal-Pizzol
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC Brazil
| |
Collapse
|
14
|
Alagna L, Meessen JMTA, Bellani G, Albiero D, Caironi P, Principale I, Vivona L, Grasselli G, Motta F, Agnelli NM, Parrini V, Romagnoli S, Keim R, Di Marzo Capozzi F, Taccone FS, Taccone W, Bottazzi B, Bandera A, Cortegiani A, Latini R. Higher levels of IgA and IgG at sepsis onset are associated with higher mortality: results from the Albumin Italian Outcome Sepsis (ALBIOS) trial. Ann Intensive Care 2021; 11:161. [PMID: 34825972 PMCID: PMC8626546 DOI: 10.1186/s13613-021-00952-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 11/12/2021] [Indexed: 12/05/2022] Open
Abstract
Background The role of intravenous immunoglobulins (IVIG) during sepsis is controversial, as different trials on IVIG have observed inconsistent survival benefits. We aimed to elucidate the possible association and clinical significance between circulating levels of immunoglobulins. Methods In a subset of 956 patients with severe sepsis and septic shock of the multicentre, open-label RCT ALBIOS, venous blood samples were serially collected 1, 2, and 7 days after enrolment (or at ICU discharge, whichever came first). IgA, IgG and IgM concentrations were assayed in all patients on day 1 and in a subgroup of 150 patients on days 2 and 7. Ig concentrations were measured employing a turbidimetric assay, OSR61171 system. Results IgA on day 1 had a significant predictive value for both 28-day and 90-day mortality (28-day mortality, HR: 1.50 (95% CI 1.18–1.92); 90-day mortality, HR: 1.54 (95% CI 1.25–1.91)). IgG, but not IgM, on day 1 showed similar results for 28-day (HR 1.83 (95% CI 1.33–2.51) and 90-day mortality HR: 1.66 (95% CI 1.23–2.25)). In addition, lower levels of IgG but not of IgA and IgM, at day 1 were associated with significantly higher risk of secondary infections (533 [406–772] vs 600 [452–842] mg/dL, median [Q1–Q3], p = 0.007). Conclusions In the largest cohort study of patients with severe sepsis or septic shock, we found that high levels of IgA and IgG on the first day of diagnosis were associated with a decreased 90-day survival. No association was found between IgM levels and survival. As such, the assessment of endogenous immunoglobulins could be a useful tool to identify septic patients at high risk of mortality. Trial registration #NCT00707122, Clinicaltrial.gov, registered 30 June 2008 Supplementary Information The online version contains supplementary material available at 10.1186/s13613-021-00952-z.
Collapse
Affiliation(s)
- Laura Alagna
- Department of Infectious Diseases, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Jennifer M T A Meessen
- Department of Cardiovascular Medicine, Institute for Pharmacological Research Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy
| | - Giacomo Bellani
- Department of Emergency and Intensive Care, San Gerardo Hospital, Via Giambattista Pergolesi 33, 20900, Monza, MB, Italy.,Department of Medicine and Surgery, University of Milan-Bicocca, Via Cadore 48, 20900, Monza, MB, Italy
| | - Daniela Albiero
- Department of Emergency and Intensive Care, San Gerardo Hospital, Via Giambattista Pergolesi 33, 20900, Monza, MB, Italy
| | - Pietro Caironi
- Department of Anesthesia and Critical Care, AOU S. Luigi Gonzaga, Orbassano, Italy.,Department of Oncology, University of Turin, Turin, Italy
| | - Irene Principale
- Department of Anesthesia and Critical Care, AOU S. Luigi Gonzaga, Orbassano, Italy
| | - Luigi Vivona
- Department of Pathophysiology and Transplantation, Università Degli Studi di Milano, Milan, Italy
| | - Giacomo Grasselli
- Department of Pathophysiology and Transplantation, Università Degli Studi di Milano, Milan, Italy.,Department of Anesthesia, Intensive Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Francesca Motta
- Department of Cardiovascular Medicine, Institute for Pharmacological Research Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy
| | - Nicolò M Agnelli
- Department of Cardiovascular Medicine, Institute for Pharmacological Research Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy
| | - Vieri Parrini
- SOS Anesthesia and Reanimation, Ospedale del Mugello, Usl Toscana Centro, Borgo San Lorenzo, Florence, Italy
| | - Stefano Romagnoli
- Department of Health Science, Section of Anesthesia and Critical Care, University of Florence, Florence, Italy.,Department of Anesthesia and Critical Care, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
| | - Roberto Keim
- UOC Anesthesia, Reanimation and Intensive Care, Ospedale Bolognini, Seriate, Bergamo, Italy
| | | | - Fabio S Taccone
- Department of Intensive Care, Université Libre de Bruxelles (ULB), Bruxelles, Belgium
| | | | - Barbara Bottazzi
- Department of Inflammation and Immunology, Humanitas Clinical and Research Centre - IRCCS, Milan, Italy
| | - Alessandra Bandera
- Department of Infectious Diseases, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, Università Degli Studi di Milano, Milan, Italy
| | - Andrea Cortegiani
- Department of Surgical, Oncological and Oral Science (Di.Chir.On.S.), University of Palermo, Palermo, Italy.,Department of Anesthesia, Intensive Care and Emergency, Policlinico Paolo Giaccone, Palermo, Italy
| | - Roberto Latini
- Department of Cardiovascular Medicine, Institute for Pharmacological Research Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy.
| |
Collapse
|
15
|
Stanley CP, Stocker R. Regulation of vascular tone and blood pressure by singlet molecular oxygen in inflammation. Curr Opin Nephrol Hypertens 2021; 30:145-150. [PMID: 33427761 DOI: 10.1097/mnh.0000000000000679] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
PURPOSE OF REVIEW The principle aim of this review is to prompt vascular researchers interested in vascular inflammation and oxidative stress to consider singlet molecular oxygen (1O2) as a potentially relevant contributor. A secondary goal is to propose novel treatment strategies to address haemodynamic complications associated with septic shock. RECENT FINDINGS Increased inflammation and oxidative stress are hallmarks of a range of vascular diseases. We recently showed that in systemic inflammation and oxidative stress associated with models of inflammation including sepsis, the tryptophan catabolizing enzyme indoleamine 2,3-dioxygenase-1 (Ido1) contributes to hypotension and decreased blood pressure through production of singlet molecular oxygen (1O2). Once formed, 1O2 converts tryptophan bound to Ido1 to a vasoactive hydroperoxide which decreases arterial tone and blood pressure via oxidation of a specific cysteine residue of protein kinase G1α. SUMMARY These works show, for the first time, that 1O2 contributes to arterial redox signalling and that Ido1 contributes to the regulation of blood pressure through production of a novel tryptophan-derived hydroperoxide, thus presenting a new signalling pathway as novel target in the treatment of blood pressure disorders such as sepsis.
Collapse
Affiliation(s)
- Christopher P Stanley
- Heart Research Institute, Newtown
- Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Roland Stocker
- Heart Research Institute, Newtown
- Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| |
Collapse
|