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Fudim M, Qadri YJ, Ghadimi K, MacLeod DB, Molinger J, Piccini JP, Whittle J, Wischmeyer PE, Patel MR, Ulloa L. Implications for Neuromodulation Therapy to Control Inflammation and Related Organ Dysfunction in COVID-19. J Cardiovasc Transl Res 2020; 13:894-899. [PMID: 32458400 PMCID: PMC7250255 DOI: 10.1007/s12265-020-10031-6] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 05/12/2020] [Indexed: 12/31/2022]
Abstract
COVID-19 is a syndrome that includes more than just isolated respiratory disease, as severe acute respiratory syndrome-coronavirus 2 (SARS-CoV2) also interacts with the cardiovascular, nervous, renal, and immune system at multiple levels, increasing morbidity in patients with underlying cardiometabolic conditions and inducing myocardial injury or dysfunction. Emerging evidence suggests that patients with the highest rate of morbidity and mortality following SARS-CoV2 infection have also developed a hyperinflammatory syndrome (also termed cytokine release syndrome). We lay out the potential contribution of a dysfunction in autonomic tone to the cytokine release syndrome and related multiorgan damage in COVID-19. We hypothesize that a cholinergic anti-inflammatory pathway could be targeted as a therapeutic avenue. Graphical Abstract .
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Affiliation(s)
- Marat Fudim
- Department of Medicine, Division of Cardiology, Duke University, 2301 Erwin Road, Durham, NC, 27710, USA.
| | - Yawar J Qadri
- Department of Anesthesiology & Critical Care, Duke University, Durham, NC, USA
| | - Kamrouz Ghadimi
- Department of Anesthesiology & Critical Care, Duke University, Durham, NC, USA
| | - David B MacLeod
- Department of Anesthesiology & Critical Care, Duke University, Durham, NC, USA
| | - Jeroen Molinger
- Department of Anesthesiology & Critical Care, Duke University, Durham, NC, USA
| | - Jonathan P Piccini
- Department of Medicine, Division of Cardiology, Duke University, 2301 Erwin Road, Durham, NC, 27710, USA
- Duke Center for Atrial Fibrillation, Duke University Medical Center, Duke University, Durham, NC, USA
| | - John Whittle
- Department of Anesthesiology & Critical Care, Duke University, Durham, NC, USA
| | - Paul E Wischmeyer
- Department of Anesthesiology & Critical Care, Duke University, Durham, NC, USA
| | - Manesh R Patel
- Department of Medicine, Division of Cardiology, Duke University, 2301 Erwin Road, Durham, NC, 27710, USA
| | - Luis Ulloa
- Center for Perioperative Organ Protection, Department of Anesthesiology, Duke University, Durham, NC, USA
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Moscovis S, Hall S, Burns C, Scott R, Blackwell C. Development of an experimental model for assessing the effects of cigarette smoke and virus infections on inflammatory responses to bacterial antigens. Innate Immun 2014; 20:647-58. [PMID: 24137042 DOI: 10.1177/1753425913503893] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Accepted: 07/23/2013] [Indexed: 12/16/2023] Open
Abstract
Interactions among major risk factors associated with bacterial infections were assessed in a model system using surrogates for virus infection; IFN-g, and exposure to cigarette smoke; cigarette smoke extract (CSE), nicotine and cotinine. Cytokine responses elicited by LPS from THP-1 cells in the presence of these components, or combinations of components, were assessed by multiplex bead assay, i.e. IL-1β, IL-6, IL-8, IL-10, TNF-α and IFN-γ. IFN-γ-priming significantly increased pro-inflammatory cytokines induced by LPS. CSE suppressed production of pro-inflammatory cytokines IL-1β, TNF-α and IFN-γ, but enhanced production of IL-8. Nicotine and cotinine suppressed all cytokine responses. In combination, IFN-γ masked the inhibitory effects of CSE. In relation to the objectives of the study, we concluded that (a) IFN-γ at biologically relevant concentrations significantly enhanced pro-inflammatory responses; (b) CSE, nicotine and cotinine dysregulated the inflammatory response and that the effects of CSE were different from those of the individual components, nicotine and cotinine; (c) when both IFN-γ and CSE were present, IFN-γ masked the effect of CSE. There is a need for clinical investigations on the increase in IL-8 responses in relation to exposure to cigarette smoke and increased pro-inflammatory responses in relation to recent viral infection.
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Affiliation(s)
- Sophia Moscovis
- School of Biomedical Sciences, Faculty of Health, University of Newcastle, Australia Hunter Medical Research Institute, Newcastle, Australia
| | - Sharron Hall
- Hunter Medical Research Institute, Newcastle, Australia Hunter Area Pathology Service Immunology, New Lambton, Australia
| | - Christine Burns
- Hunter Medical Research Institute, Newcastle, Australia Hunter Area Pathology Service Immunology, New Lambton, Australia
| | - Rodney Scott
- School of Biomedical Sciences, Faculty of Health, University of Newcastle, Australia Hunter Medical Research Institute, Newcastle, Australia Human Genetics, John Hunter Hospital, New Lambton, Australia
| | - Caroline Blackwell
- School of Biomedical Sciences, Faculty of Health, University of Newcastle, Australia Hunter Medical Research Institute, Newcastle, Australia
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D'Elia RV, Harrison K, Oyston PC, Lukaszewski RA, Clark GC. Targeting the "cytokine storm" for therapeutic benefit. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2013; 20:319-27. [PMID: 23283640 PMCID: PMC3592351 DOI: 10.1128/cvi.00636-12] [Citation(s) in RCA: 215] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Inflammation is the body's first line of defense against infection or injury, responding to challenges by activating innate and adaptive responses. Microbes have evolved a diverse range of strategies to avoid triggering inflammatory responses. However, some pathogens, such as the influenza virus and the Gram-negative bacterium Francisella tularensis, do trigger life-threatening "cytokine storms" in the host which can result in significant pathology and ultimately death. For these diseases, it has been proposed that downregulating inflammatory immune responses may improve outcome. We review some of the current candidates for treatment of cytokine storms which may prove useful in the clinic in the future and compare them to more traditional therapeutic candidates that target the pathogen rather than the host response.
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Vassallo R, Walters PR, Lamont J, Kottom TJ, Yi ES, Limper AH. Cigarette smoke promotes dendritic cell accumulation in COPD; a Lung Tissue Research Consortium study. Respir Res 2010; 11:45. [PMID: 20420706 PMCID: PMC2867978 DOI: 10.1186/1465-9921-11-45] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2009] [Accepted: 04/26/2010] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Abnormal immune responses are believed to be highly relevant in the pathogenesis of chronic obstructive pulmonary disease (COPD). Dendritic cells provide a critical checkpoint for immunity by their capacity to both induce and suppress immunity. Although evident that cigarette smoke, the primary cause of COPD, significantly influences dendritic cell functions, little is known about the roles of dendritic cells in the pathogenesis of COPD. METHODS The extent of dendritic cell infiltration in COPD tissue specimens was determined using immunohistochemical localization of CD83+ cells (marker of matured myeloid dendritic cells), and CD1a+ cells (Langerhans cells). The extent of tissue infiltration with Langerhans cells was also determined by the relative expression of the CD207 gene in COPD versus control tissues. To determine mechanisms by which dendritic cells accumulate in COPD, complimentary studies were conducted using monocyte-derived human dendritic cells exposed to cigarette smoke extract (CSE), and dendritic cells extracted from mice chronically exposed to cigarette smoke. RESULTS In human COPD lung tissue, we detected a significant increase in the total number of CD83+ cells, and significantly higher amounts of CD207 mRNA when compared with control tissue. Human monocyte-derived dendritic cells exposed to CSE (0.1-2%) exhibited enhanced survival in vitro when compared with control dendritic cells. Murine dendritic cells extracted from mice exposed to cigarette smoke for 4 weeks, also demonstrated enhanced survival compared to dendritic cells extracted from control mice. Acute exposure of human dendritic cells to CSE induced the cellular pro-survival proteins heme-oxygenase-1 (HO-1), and B cell lymphoma leukemia-x(L) (Bcl-xL), predominantly through oxidative stress. Although activated human dendritic cells conditioned with CSE expressed diminished migratory CCR7 expression, their migration towards the CCR7 ligand CCL21 was not impaired. CONCLUSIONS These data indicate that COPD is associated with increased numbers of cells bearing markers associated with Langerhans cells and mature dendritic cells, and that cigarette smoke promotes survival signals and augments survival of dendritic cells. Although CSE suppressed dendritic cell CCR7 expression, migration towards a CCR7 ligand was not diminished, suggesting that reduced CCR7-dependent migration is unlikely to be an important mechanism for dendritic cell retention in the lungs of smokers with COPD.
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MESH Headings
- Aged
- Animals
- Antigens, CD/analysis
- Antigens, CD/genetics
- Antigens, CD1/analysis
- Case-Control Studies
- Cell Survival
- Cells, Cultured
- Chemokine CCL21/metabolism
- Chemotaxis
- Dendritic Cells/drug effects
- Dendritic Cells/immunology
- Dose-Response Relationship, Drug
- Female
- Heme Oxygenase-1/metabolism
- Humans
- Immunoglobulins/analysis
- Langerhans Cells/immunology
- Lectins, C-Type/genetics
- Lung/immunology
- Male
- Mannose-Binding Lectins/genetics
- Membrane Glycoproteins/analysis
- Mice
- Middle Aged
- Nicotine/pharmacology
- Nicotinic Agonists/pharmacology
- Pulmonary Disease, Chronic Obstructive/genetics
- Pulmonary Disease, Chronic Obstructive/immunology
- RNA, Messenger/analysis
- Receptors, CCR7/metabolism
- Smoke/adverse effects
- Smoking/adverse effects
- Smoking/genetics
- Smoking/immunology
- Time Factors
- bcl-X Protein/metabolism
- CD83 Antigen
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Affiliation(s)
- Robert Vassallo
- The Thoracic Diseases Research Unit, Division of Pulmonary Critical Care, Department of Internal Medicine, the Clinical Immunology and Immunotherapeutics Program, Mayo Clinic and Foundation, Rochester, Minnesota, 55905, USA
| | - Paula R Walters
- The Thoracic Diseases Research Unit, Division of Pulmonary Critical Care, Department of Internal Medicine, the Clinical Immunology and Immunotherapeutics Program, Mayo Clinic and Foundation, Rochester, Minnesota, 55905, USA
| | - Jeffrey Lamont
- The Thoracic Diseases Research Unit, Division of Pulmonary Critical Care, Department of Internal Medicine, the Clinical Immunology and Immunotherapeutics Program, Mayo Clinic and Foundation, Rochester, Minnesota, 55905, USA
| | - Theodore J Kottom
- The Thoracic Diseases Research Unit, Division of Pulmonary Critical Care, Department of Internal Medicine, the Clinical Immunology and Immunotherapeutics Program, Mayo Clinic and Foundation, Rochester, Minnesota, 55905, USA
| | - Eunhee S Yi
- The Thoracic Diseases Research Unit, Division of Pulmonary Critical Care, Department of Internal Medicine, the Clinical Immunology and Immunotherapeutics Program, Mayo Clinic and Foundation, Rochester, Minnesota, 55905, USA
- The Division of Anatomic Pathology, Mayo Clinic and Foundation, Rochester, Minnesota, 55905, USA
| | - Andrew H Limper
- The Thoracic Diseases Research Unit, Division of Pulmonary Critical Care, Department of Internal Medicine, the Clinical Immunology and Immunotherapeutics Program, Mayo Clinic and Foundation, Rochester, Minnesota, 55905, USA
- The Department of Biochemistry and Molecular Biology, Mayo Clinic and Foundation, Rochester, Minnesota, 55905, USA
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Lower serum cytokine levels in smokers than nonsmokers with chronic schizophrenia on long-term treatment with antipsychotics. Psychopharmacology (Berl) 2008; 201:383-9. [PMID: 18719893 DOI: 10.1007/s00213-008-1295-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2008] [Accepted: 08/04/2008] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Schizophrenia is associated with various abnormalities in the immune system. Suppression of inflammatory cytokines by cigarette smoke is well-established. The purpose of this study was to determine any differences in cytokine profiles in smokers and nonsmokers with schizophrenia and whether there were any relationships among altered cytokine profiles and psychopathological symptoms. MATERIALS AND METHODS Serum interleukin (IL)-2, IL-6, IL-8, and tumor necrosis factor (TNF)-alpha levels were measured in 96 male inpatients with DSM-IV schizophrenia: 66 smokers and 30 nonsmokers. Symptoms were assessed with the Positive and Negative Syndrome Scale (PANSS). RESULTS The positive PANSS symptoms were lower in smokers than nonsmokers, while the negative symptoms were lower in those who smoked more cigarettes. Cytokine levels were positively correlated: IL-2 level with IL-6 and IL-6 with both IL-8 and TNF-alpha. Both IL-2 and IL-6, but not IL-8 or TNF-alpha, were significantly lower in smokers than nonsmokers (p < 0.002; p < 0.01). Lower IL-2 levels correlated with fewer negative symptoms and with smoking more cigarettes. CONCLUSIONS The fewer positive symptoms in smokers and fewer negative symptoms in those who smoked more cigarettes may be associated with nicotine-induced suppression of some inflammatory cytokines.
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Aldhous MC, Prescott RJ, Roberts S, Samuel K, Waterfall M, Satsangi J. Does nicotine influence cytokine profile and subsequent cell cycling/apoptotic responses in inflammatory bowel disease? Inflamm Bowel Dis 2008; 14:1469-82. [PMID: 18618634 DOI: 10.1002/ibd.20523] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Smoking differentially influences susceptibility to the inflammatory bowel diseases (IBDs) Crohn's disease (CD) and ulcerative colitis (UC). We investigated the effects of nicotine on cytokine, cell cycle, and apoptotic responses in peripheral blood mononuclear cells (PBMCs) from IBD patients and healthy controls (HCs). METHODS PBMCs from IBD patients and HC were stimulated with lipopolysaccharide (LPS; 1 microg/mL) or phytohemagglutinin (PHA, 5 or 0.5 microg/mL), +/- nicotine (1, 10, 100 microg/mL). Cytokines (IL1beta, IL2, IL10, IL12/IL23p40, TGFbeta, TNFalpha) were measured in supernatants at 24 hours. After 72 hours cells were analyzed by flow cytometry for cell cycle and apoptosis. Statistical modeling was used to identify interactions between cytokines and cell cycle / apoptosis and minimize confounding effects. RESULTS Stimulation by LPS and PHA (5 microg/mL) increased IL12/IL23p40 production from CD and UC versus HC (P < 0.05); PHA (0.5 microg/mL) increased IL1beta in UC and decreased TGFbeta from CD and UC (P < 0.01). In all groups, nicotine reduced LPS- and PHA (0.5 microg/mL)-stimulated production of IL1beta, IL10, TGFbeta, and TNFalpha (P < 0.001). Cell cycle analysis showed that PHA, but not LPS, induced proliferation and decreased G(0)/G(1) resting cells in CD and UC versus HC (P < 0.001). Nicotine decreased PHA-stimulated S-phase proliferation and increased G(0)/G(1) resting cells (P < 0.01). Modeling showed independent associations between IL12/IL23p40 and apoptosis (P = 0.01), IL1beta and resting cells (P = 0.006), TNFalpha and proliferating cells (P < 0.001). Disease activity and smoking habit had no effect. CONCLUSIONS Dysregulated cytokine profiles in UC and CD are associated with specific alterations in cell cycle responses; these effects may be modified by nicotine, and potentially by anticytokine therapies.
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Affiliation(s)
- Marian C Aldhous
- Gastrointestinal Unit, School of Clinical and Molecular Medicine, University of Edinburgh, Western General Hospital, Edinburgh, Scotland, UK.
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Kroening PR, Barnes TW, Pease L, Limper A, Kita H, Vassallo R. Cigarette smoke-induced oxidative stress suppresses generation of dendritic cell IL-12 and IL-23 through ERK-dependent pathways. THE JOURNAL OF IMMUNOLOGY 2008; 181:1536-47. [PMID: 18606709 DOI: 10.4049/jimmunol.181.2.1536] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
IL-12p70, a heterodimer composed of p35 and p40 subunits, is a key polarizing cytokine produced by maturing dendritic cells (DCs). We report that cigarette smoke extract (CSE), an extract of soluble cigarette smoke components, suppresses both p35 and p40 production by LPS or CD40L-matured DCs. Suppression of IL-12p70 production from maturing DCs was not observed in the presence of nicotine concentrations achievable in CSE or in the circulation of smokers. The suppressed IL-12p70 protein production by CSE-conditioned DCs was restored by pretreatment of DCs or CSE with the antioxidants N-acetylcysteine and catalase. Inhibition of DC IL-12p70 by CSE required activation of ERK-dependent pathways, since inhibition of ERK abrogated the suppressive effect of CSE on IL-12 secretion. Oxidative stress and sustained ERK phosphorylation by CSE enhanced nuclear levels of the p40 transcriptional repressor c-fos in both immature and maturing DCs. Suppression of the p40 subunit by CSE also resulted in diminished production of IL-23 protein by maturing DCs. Using a murine model of chronic cigarette smoke exposure, we observed that systemic and lung DCs from mice "smokers" produced significantly less IL-12p70 and p40 protein upon maturation. This inhibitory effect was selective, since production of TNF-alpha during DC maturation was enhanced in the smokers. These data imply that oxidative stress generated by cigarette smoke exposure suppresses the generation of key cytokines by maturing DCs through the activation of ERK-dependent pathways. Some of the cigarette smoke-induced inhibitory effects on DC function may be mitigated by antioxidants.
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Affiliation(s)
- Paula R Kroening
- Department of Internal Medicine, Thoracic Diseases Research Unit, Division of Pulmonary Critical Care, Mayo Clinic and Foundation, Rochester, MN 55905, USA
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Mamata Y, Hakki A, Newton C, Burdash N, Klein TW, Friedman H. Differential effects of Chlamydia pneumoniae infection on cytokine levels in human T lymphocyte- and monocyte-derived cell cultures. Int J Med Microbiol 2007; 297:109-15. [PMID: 17280867 DOI: 10.1016/j.ijmm.2006.11.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2006] [Revised: 10/23/2006] [Accepted: 11/21/2006] [Indexed: 11/23/2022] Open
Abstract
Continuous cultures of human lymphocyte- and monocyte-derived cell lines were examined for levels of immunoregulatory cytokines important in resistance to the intracellular opportunistic bacterium Chlamydia pneumoniae (Cp), a ubiquitous pathogen widely disseminated in the population and hypothesized to be involved in chronic inflammatory diseases such as atherosclerosis and neurological diseases like multiple sclerosis and Alzheimer's disease. The results of this study showed that the continuous human T lymphocyte cell line MOLT-4 and the continuous monocytic cell line THP-1 were readily infected by Cp in vitro as shown by immunofluorescence microscopy for Cp lipopolysaccharide (LPS). The 16S rRNA expression determined by real-time RT-PCR increased rapidly after infection of either cell line with these bacteria. The THP-1 cells infected with Cp showed increased levels of the immunoregulatory cytokine IL-12 and also of TNFalpha and IL-10 compared to cultures stimulated with heat-killed Cp (KCp) or Escherichia coli LPS as a control. Stimulation of MOLT-4 cells with KCp or E. coli LPS also induced the Th1 cytokines IFNgamma and IL-12 and the Th2 cytokine IL-10, but infection with viable Cp induced higher Th1 cytokine levels. These results suggest that Cp infection induces a predominant Th1 cytokine profile by T cells, in addition to induction of TNFalpha by monocytes/macrophages. Such effects are likely involved in antibacterial immunity against Cp infection.
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Affiliation(s)
- Yukimitsu Mamata
- Department of Molecular Medicine, University of South Florida, College of Medicine, Tampa, FL 33612-4742, USA
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Abstract
PURPOSE OF REVIEW Inflammatory bowel disease is thought to result from an abnormal response to the gut microbiota. This review discusses advances in knowledge of the changes in gut microbiota and host response in inflammatory bowel disease. RECENT FINDINGS Approximately 15% of Crohn's disease cases in western populations result from mutations in NOD2/CARD15. This disease leads to defective intestinal defensin production and defective monocyte interleukin-8 response to bacterial peptidoglycan. A similar defective interleukin-8 response and consequent delayed neutrophil recruitment have also been shown in patients with Crohn's disease who do not have the NOD2 mutation. A consequence seems to be the accumulation in tissue of macrophages containing various bacteria, perhaps particularly Escherichia coli. In keeping with this patients with Crohn's disease have circulating antibodies against bacterial flagellar proteins of enterobacteria and clostridia. In ulcerative colitis, there is less evidence for invasion by or immune response to bacteria but changes in gut microbiota include a relative deficiency of bifidobacteria. There is considerable interest in probiotic or prebiotic therapies although so far little evidence for their efficacy. SUMMARY Molecular techniques are giving us better insight into the gut microbiota in inflammatory bowel disease that should translate into improved therapies.
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Affiliation(s)
- Sreedhar Subramanian
- Division of Gastroenterology, School of Clinical Sciences, University of Liverpool, Liverpool, UK
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