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Habtemariam S. Anti-Inflammatory Therapeutic Mechanisms of Isothiocyanates: Insights from Sulforaphane. Biomedicines 2024; 12:1169. [PMID: 38927376 PMCID: PMC11200786 DOI: 10.3390/biomedicines12061169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/16/2024] [Accepted: 05/21/2024] [Indexed: 06/28/2024] Open
Abstract
Isothiocyanates (ITCs) belong to a group of natural products that possess a highly reactive electrophilic -N=C=S functional group. They are stored in plants as precursor molecules, glucosinolates, which are processed by the tyrosinase enzyme upon plant tissue damage to release ITCs, along with other products. Isolated from broccoli, sulforaphane is by far the most studied antioxidant ITC, acting primarily through the induction of a transcription factor, the nuclear factor erythroid 2-related factor 2 (Nrf2), which upregulates downstream antioxidant genes/proteins. Paradoxically, sulforaphane, as a pro-oxidant compound, can also increase the levels of reactive oxygen species, a mechanism which is attributed to its anticancer effect. Beyond highlighting the common pro-oxidant and antioxidant effects of sulforaphane, the present paper was designed to assess the diverse anti-inflammatory mechanisms reported to date using a variety of in vitro and in vivo experimental models. Sulforaphane downregulates the expression of pro-inflammatory cytokines, chemokines, adhesion molecules, cycloxyhenase-2, and inducible nitric oxide synthase. The signalling pathways of nuclear factor κB, activator protein 1, sirtuins 1, silent information regulator sirtuin 1 and 3, and microRNAs are among those affected by sulforaphane. These anti-inflammatory actions are sometimes due to direct action via interaction with the sulfhydryl structural moiety of cysteine residues in enzymes/proteins. The following are among the topics discussed in this paper: paradoxical signalling pathways such as the immunosuppressant or immunostimulant mechanisms; crosstalk between the oxidative and inflammatory pathways; and effects dependent on health and disease states.
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Affiliation(s)
- Solomon Habtemariam
- Pharmacognosy Research & Herbal Analysis Services UK, University of Greenwich, Central Avenue, Chatham-Maritime, Kent ME4 4TB, UK
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2
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Zhao Y, Dhru U, Fleischmann E, Mostafa E, Al-Suqi M, Conaway MR, Krupnick AS, Linden J, Rabin J, Lau CL. Regadenoson Reduces Soluble Receptor for Advanced Glycation End-Products in Lung Recipients. Ann Thorac Surg 2023; 116:1150-1158. [PMID: 36921749 DOI: 10.1016/j.athoracsur.2023.03.007] [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] [Received: 10/17/2022] [Revised: 02/21/2023] [Accepted: 03/03/2023] [Indexed: 03/18/2023]
Abstract
BACKGROUND The selective adenosine A2A receptor (A2AR) agonist regadenoson reduces inflammation due to lung ischemia-reperfusion injury (IRI). The objective of this study was to investigate molecular and cellular mechanisms by which regadenoson reduces IRI in lung transplant recipients. METHODS Fourteen human lung transplant recipients were infused for 12 hours with regadenoson and 7 more served as untreated controls. Plasma levels of high mobility group box 1 and its soluble receptor for advanced glycation end-products (sRAGE) were measured by Luminex. Matrix metalloproteinase (MMP) 2 and 9 were measured by gelatin zymography. Tissue inhibitor of metalloproteinase 1 was measured by mass spectroscopy. A2AR expression on leukocytes was analyzed by flow cytometry. MMP-9-mediated cleavage of RAGE was evaluated using cultured macrophages in vitro. RESULTS Regadenoson treatment during lung transplantation significantly reduced levels of MMP-9 (P < .05), but not MMP-2, and elevated levels of tissue inhibitor of metalloproteinase 1 (P < .05), an endogenous selective inhibitor of MMP-9. Regadenoson infusion significantly reduced plasma levels of sRAGE (P < .05) during lung reperfusion compared with control subjects. A2AR expression was highest on invariant natural killer T cells and higher on monocytes than other circulating immune cells (P < .05). The shedding of RAGE from cultured monocytes/macrophages was increased by MMP-9 stimulation and reduced by an MMP inhibitor or by A2AR agonists, regadenoson or ATL146e. CONCLUSIONS In vivo and in vitro studies suggest that A2AR activation reduces sRAGE in part by inhibiting MMP-9 production by monocytes/macrophages. These results suggest a novel molecular mechanism by which A2AR agonists reduce primary graft dysfunction.
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Affiliation(s)
- Yunge Zhao
- Thoracic Division, Department of Surgery, University of Maryland Baltimore, Baltimore, Maryland
| | - Urmil Dhru
- Thoracic Division, Department of Surgery, University of Maryland Baltimore, Baltimore, Maryland
| | - Emily Fleischmann
- Thoracic Division, Department of Surgery, University of Maryland Baltimore, Baltimore, Maryland
| | - Ezzat Mostafa
- Thoracic Division, Department of Surgery, University of Maryland Baltimore, Baltimore, Maryland
| | - Manal Al-Suqi
- Thoracic Division, Department of Surgery, University of Maryland Baltimore, Baltimore, Maryland
| | - Mark R Conaway
- Division of Translational Research and Applied Statistics, Department of Public Health Sciences, University of Virginia, Charlottesville, Virginia
| | - Alexander S Krupnick
- Thoracic Division, Department of Surgery, University of Maryland Baltimore, Baltimore, Maryland
| | - Joel Linden
- Thoracic Division, Department of Surgery, University of Maryland Baltimore, Baltimore, Maryland; Division of Nephrology, Department of Medicine, University of Virginia, Charlottesville, Virginia
| | - Joseph Rabin
- Thoracic Division, Department of Surgery, University of Maryland Baltimore, Baltimore, Maryland
| | - Christine L Lau
- Thoracic Division, Department of Surgery, University of Maryland Baltimore, Baltimore, Maryland.
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Easley KF, Edenfield RC, Lott MEJ, Reed RC, Das Sarma J, Mehta AJ, Staitieh BS, Lipp EK, Cho IK, Johnson SK, Jones CA, Bebin-Blackwell AG, Levy JM, Tompkins SM, Easley CA, Koval M. Chronic alcohol use primes bronchial cells for altered inflammatory response and barrier dysfunction during SARS-CoV-2 infection. Am J Physiol Lung Cell Mol Physiol 2023; 325:L647-L661. [PMID: 37786945 DOI: 10.1152/ajplung.00381.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 07/26/2023] [Accepted: 09/15/2023] [Indexed: 10/04/2023] Open
Abstract
Alcohol use disorder (AUD) is a significant public health concern and people with AUD are more likely to develop severe acute respiratory distress syndrome (ARDS) in response to respiratory infections. To examine whether AUD was a risk factor for more severe outcome in response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, we examined early responses to infection using cultured differentiated bronchial epithelial cells derived from brushings obtained from people with AUD or without AUD. RNA-seq analysis of uninfected cells determined that AUD cells were enriched for expression of epidermal genes as compared with non-AUD cells. Bronchial epithelial cells from patients with AUD showed a significant decrease in barrier function 72 h postinfection, as determined by transepithelial electrical resistance. In contrast, barrier function of non-AUD cells was enhanced 72 h after SARS-CoV-2 infection. AUD cells showed claudin-7 that did not colocalize with zonula occludens-1 (ZO-1), indicative of disorganized tight junctions. However, both AUD and non-AUD cells showed decreased β-catenin expression following SARS-CoV-2 infection. To determine the impact of AUD on the inflammatory response to SARS-CoV-2 infection, cytokine secretion was measured by multiplex analysis. SARS-CoV-2-infected AUD bronchial cells had enhanced secretion of multiple proinflammatory cytokines including TNFα, IL-1β, and IFNγ as opposed to non-AUD cells. In contrast, secretion of the barrier-protective cytokines epidermal growth factor (EGF) and granulocyte macrophage-colony stimulating factor (GM-CSF) was enhanced for non-AUD bronchial cells. Taken together, these data support the hypothesis that AUD is a risk factor for COVID-19, where alcohol primes airway epithelial cells for increased inflammation and increased barrier dysfunction and increased inflammation in response to infection by SARS-CoV-2.NEW & NOTEWORTHY Alcohol use disorder (AUD) is a significant risk factor for severe acute respiratory distress syndrome. We found that AUD causes a phenotypic shift in gene expression in human bronchial epithelial cells, enhancing expression of epidermal genes. AUD cells infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) had higher levels of proinflammatory cytokine secretion and barrier dysfunction not present in infected non-AUD cells, consistent with increased early COVID-19 severity due to AUD.
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Affiliation(s)
- Kristen F Easley
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Emory University School of Medicine, Atlanta, Georgia, United States
| | - R Clayton Edenfield
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, Georgia, United States
- Regenerative Bioscience Center, University of Georgia, Athens, Georgia, United States
| | - Megan E J Lott
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, Georgia, United States
| | - Ryan C Reed
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Emory University School of Medicine, Atlanta, Georgia, United States
| | - Jayasri Das Sarma
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, India
- Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania, United States
| | - Ashish J Mehta
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Emory University School of Medicine, Atlanta, Georgia, United States
- Atlanta Veterans Affairs Health Care System, Decatur, Georgia, United States
| | - Bashar S Staitieh
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Emory University School of Medicine, Atlanta, Georgia, United States
| | - Erin K Lipp
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, Georgia, United States
| | - In Ki Cho
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, Georgia, United States
- Regenerative Bioscience Center, University of Georgia, Athens, Georgia, United States
| | - Scott K Johnson
- Center for Vaccines and Immunology, University of Georgia, Athens, Georgia, United States
| | - Cheryl A Jones
- Center for Vaccines and Immunology, University of Georgia, Athens, Georgia, United States
| | | | - Joshua M Levy
- Department of Otolaryngology, Emory University School of Medicine, Atlanta, Georgia, United States
- National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland, United States
| | - S Mark Tompkins
- Center for Vaccines and Immunology, University of Georgia, Athens, Georgia, United States
| | - Charles A Easley
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, Georgia, United States
- Regenerative Bioscience Center, University of Georgia, Athens, Georgia, United States
| | - Michael Koval
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Emory University School of Medicine, Atlanta, Georgia, United States
- Department of Cell Biology, Emory University School of Medicine, Atlanta, Georgia, United States
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Lewis SA, Cinco IR, Doratt BM, Blanton MB, Hoagland C, Newman N, Davies M, Grant KA, Messaoudi I. Chronic alcohol consumption dysregulates innate immune response to SARS-CoV-2 in the lung. EBioMedicine 2023; 97:104812. [PMID: 37793211 PMCID: PMC10562860 DOI: 10.1016/j.ebiom.2023.104812] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND Alcohol consumption is widespread with over half of the individuals over 18 years of age in the U.S. reporting alcohol use in the last 30 days. Moreover, 9 million Americans engaged in binge or chronic heavy drinking (CHD) in 2019. CHD negatively impacts pathogen clearance and tissue repair, including in the respiratory tract, thereby increasing susceptibility to infection. Although, it has been hypothesized that chronic alcohol consumption negatively impacts COVID-19 outcomes; the interplay between chronic alcohol use and SARS-CoV-2 infection outcomes has yet to be elucidated. METHODS In this study we employed luminex, scRNA sequencing, and flow cytometry to investigate the impact of chronic alcohol consumption on SARS-CoV-2 anti-viral responses in bronchoalveolar lavage cell samples from humans with alcohol use disorder and rhesus macaques that engaged in chronic drinking. FINDINGS Our data show that in both humans (n = 6) and macaques (n = 11), the induction of key antiviral cytokines and growth factors was decreased with chronic ethanol consumption. Moreover, in macaques fewer differentially expressed genes mapped to Gene Ontology terms associated with antiviral immunity following 6 month of ethanol consumption while TLR signaling pathways were upregulated. INTERPRETATION These data are indicative of aberrant inflammation and reduced antiviral responses in the lung with chronic alcohol drinking. FUNDING This study was supported by NIH 1R01AA028735-04 (Messaoudi), U01AA013510-20 (Grant), R24AA019431-14 (Grant), R24AA019661 (Burnham), P-51OD011092 (ONPRC core grant support). The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH.
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Affiliation(s)
- Sloan A Lewis
- Department of Molecular Biology and Biochemistry, School of Biological Sciences, University of California Irvine, USA
| | - Isaac R Cinco
- Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky, USA
| | - Brianna M Doratt
- Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky, USA
| | - Madison B Blanton
- Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky, USA; Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, USA
| | - Cherise Hoagland
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, USA
| | - Natali Newman
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, USA
| | - Michael Davies
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, USA
| | - Kathleen A Grant
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, USA
| | - Ilhem Messaoudi
- Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky, USA.
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Lewis SA, Cinco IR, Doratt BM, Blanton MB, Hoagland C, Davies M, Grant KA, Messaoudi I. Chronic alcohol consumption dysregulates innate immune response to SARS-CoV-2 in the lung. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.02.539139. [PMID: 37205543 PMCID: PMC10187161 DOI: 10.1101/2023.05.02.539139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Alcohol consumption is widespread with over half of the individuals over 18 years of age in the U.S. reporting alcohol use in the last 30 days. Moreover, 9 million Americans engaged in binge or chronic heavy drinking (CHD) in 2019. CHD negatively impacts pathogen clearance and tissue repair, including in the respiratory tract, thereby increasing susceptibility to infection. Although, it has been hypothesized that chronic alcohol consumption negatively impacts COVID-19 outcomes; the interplay between chronic alcohol use and SARS-CoV-2 infection outcomes has yet to be elucidated. Therefore, in this study we investigated the impact of chronic alcohol consumption on SARS-CoV-2 anti-viral responses in bronchoalveolar lavage cell samples from humans with alcohol use disorder and rhesus macaques that engaged in chronic drinking. Our data show that in both humans and macaques, the induction of key antiviral cytokines and growth factors was decreased with chronic ethanol consumption. Moreover, in macaques fewer differentially expressed genes mapped to Gene Ontology terms associated with antiviral immunity following 6 month of ethanol consumption while TLR signaling pathways were upregulated. These data are indicative of aberrant inflammation and reduced antiviral responses in the lung with chronic alcohol drinking.
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Affiliation(s)
- Sloan A. Lewis
- Department of Molecular Biology and Biochemistry, School of Biological Sciences, University of California Irvine
| | - Isaac R. Cinco
- Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky
| | - Brianna M. Doratt
- Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky
| | - Madison B. Blanton
- Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky
- Pharmaceutical Sciences, College of Pharmacy, University of Kentucky
| | - Cherise Hoagland
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University
| | - Michael Davies
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University
| | - Kathleen A. Grant
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University
| | - Ilhem Messaoudi
- Microbiology, Immunology and Molecular Genetics, College of Medicine, University of Kentucky
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Staitieh BS, Malik S, Auld SC, Wigger GW, Fan X, Roth AT, Chatterjee T, Arora I, Raju SV, Heath S, Aggrawal S. HIV Increases the Risk of Cigarette Smoke-Induced Emphysema Through MMP-9. J Acquir Immune Defic Syndr 2023; 92:263-270. [PMID: 36331810 PMCID: PMC9911107 DOI: 10.1097/qai.0000000000003125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND HIV is associated with an increased risk for emphysema. Matrix metalloproteinase 9 (MMP-9) is a lung tissue remodeling enzyme associated with emphysema. We previously found MMP-9 activity increases with increases in oxidative stress and that HIV increases alveolar oxidative stress. We hypothesized that HIV proteins would increase the risk of cigarette smoke-induced emphysema due to MMP-9. METHODS HIV-1 transgenic rats and wild-type littermates were exposed to cigarette smoke or sham for 8 weeks. Lung compliance and histology were assessed. Bronchoalveolar lavage (BAL), primary alveolar macrophages (AM), and serum samples were obtained. A rat alveolar macrophage cell line was exposed to the HIV protein Tat, and MMP-9 levels were assessed by Western immunoblotting. MMP-9 protein expression and activity were assessed in AM from the HIV rat model by ELISA and cytoimmunofluoresence, respectively. Serum from human subjects with and without HIV and tobacco dependence was assessed for MMP-9 levels. RESULTS MMP-9 expression was significantly increased in rat alveolar macrophages after Tat exposure. HIV-1 transgenic rats developed emphysema while wild-type littermates did not. MMP-9 expression was also increased in the serum, BAL, and AM of HIV-1 transgenic rats after exposure to cigarette smoke compared with wild-type rats. In parallel, serum samples from HIV+ smokers had higher levels of MMP-9 than subjects without HIV and those who did not smoke. CONCLUSION The combination of HIV and cigarette smoke increases MMP-9 expression in experimental rat HIV models and human subjects. HIV and cigarette smoke both induce alveolar oxidative stress and thereby increase MMP-9 activity.
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Affiliation(s)
- Bashar S. Staitieh
- Department of Medicine, Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, Emory University School of Medicine, Atlanta, GA
| | - Simran Malik
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine in St. Louis, St. Louis, MO
| | - Sara C. Auld
- Department of Medicine, Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, Emory University School of Medicine, Atlanta, GA
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA
| | - Gregory W. Wigger
- Department of Medicine, Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, Emory University School of Medicine, Atlanta, GA
| | - Xian Fan
- Department of Medicine, Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, Emory University School of Medicine, Atlanta, GA
| | - Andrew T. Roth
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine in St. Louis, St. Louis, MO
| | - Tanima Chatterjee
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - Itika Arora
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - S. Vamsee Raju
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, AL; and
| | - Sonya Heath
- Department of Medicine, Division of Infectious Disease, University of Alabama at Birmingham, Birmingham, AL
| | - Saurabh Aggrawal
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL
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Wigger GW, Khani D, Ahmed M, Sayegh L, Auld SC, Fan X, Guidot DM, Staitieh BS. Alcohol impairs recognition and uptake of Mycobacterium tuberculosis by suppressing toll-like receptor 2 expression. Alcohol Clin Exp Res 2022; 46:2214-2224. [PMID: 36281822 PMCID: PMC9772112 DOI: 10.1111/acer.14960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 09/12/2022] [Accepted: 10/17/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND Alcohol impairs pulmonary innate immune function and is associated with an increased risk of tuberculosis (TB). Toll-like receptor 2 (TLR2) is a pattern recognition receptor on alveolar macrophages that recognizes Mycobacterium tuberculosis (Mtb). The expression of TLR2 depends, in part, on granulocyte-macrophage colony-stimulating factor (GM-CSF) signaling. Given our prior work demonstrating the suppression of GM-CSF signaling following chronic alcohol ingestion, we hypothesized that alcohol impairs TLR2 expression via the suppression of GM-CSF and thereby reduces the ability of the macrophage to recognize and phagocytose Mtb. METHODS Primary alveolar macrophages were isolated from control-fed and alcohol-fed rats. Prior to cell isolation, some alcohol-fed rats were treated with intranasal GM-CSF and then endotracheally inoculated with an attenuated strain of Mtb. Primary macrophages were then isolated and immunofluorescence was used to determine phagocytic efficiency and TLR2 expression in the presence and absence of GM-CSF treatment and phagocytic efficiency in the presence and absence of TLR2 neutralization. RESULTS TLR2 expression and phagocytosis of Mtb were significantly lower in the alveolar macrophages of alcohol-fed rats than control-fed rats. In parallel, blocking TLR2 signaling recapitulated this decreased phagocytosis of Mtb. In contrast, intranasal GM-CSF treatment restored TLR2 expression and Mtb phagocytosis in the alveolar macrophages of alcohol-fed rats to levels comparable to those of control-fed rats. CONCLUSIONS Chronic alcohol ingestion reduces TLR2 protein expression and phagocytosis of Mtb, likely due to impaired GM-CSF signaling. GM-CSF restores membrane-bound TLR2 expression and phagocytic function.
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Affiliation(s)
- Gregory W Wigger
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Darya Khani
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Mariam Ahmed
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Layal Sayegh
- Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Sara C Auld
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
- Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Xian Fan
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - David M Guidot
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Bashar S Staitieh
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
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Malherbe DC, Messaoudi I. Transcriptional and Epigenetic Regulation of Monocyte and Macrophage Dysfunction by Chronic Alcohol Consumption. Front Immunol 2022; 13:911951. [PMID: 35844518 PMCID: PMC9277054 DOI: 10.3389/fimmu.2022.911951] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 05/27/2022] [Indexed: 02/05/2023] Open
Abstract
Drinking alcohol, even in moderation, can affect the immune system. Studies have shown disproportionate effects of alcohol on circulating and tissue-resident myeloid cells (granulocytes, monocytes, macrophages, dendritic cells). These cells orchestrate the body's first line of defense against microbial challenges as well as maintain tissue homeostasis and repair. Alcohol's effects on these cells are dependent on exposure pattern, with acute drinking dampening but chronic drinking enhancing production of inflammatory mediators. Although chronic drinking is associated with heightened systemic inflammation, studies on tissue resident macrophage populations in several organs including the spleen, liver, brain, and lung have also shown compromised functional and metabolic capacities of these cells. Many of these effects are thought to be mediated by oxidative stress caused by alcohol and its metabolites which can directly impact the cellular epigenetic landscapes. In addition, since myeloid cells are relatively short-lived in circulation and are under constant repopulation from the bone marrow compartment, alcohol's effects on bone marrow progenitors and hematopoiesis are important for understanding the impact of alcohol systemically on these myeloid populations. Alcohol-induced disruption of progenitor, circulating, and tissue resident myeloid populations contribute to the increased susceptibility of patients with alcohol use disorders to viral and bacterial infections. In this review, we provide an overview of the impact of chronic alcohol consumption on the function of monocytes and macrophages in host defense, tissue repair and inflammation. We then summarize our current understanding of the mechanisms underlying alcohol-induced disruption and examine changes in transcriptome and epigenome of monocytes and mcrophages. Overall, chronic alcohol consumption leads to hyper-inflammation concomitant with decreased microbial and wound healing responses by monocytes/macrophages due to a rewiring of the epigentic and transcriptional landscape. However, in advanced alcoholic liver disease, myeloid cells become immunosuppressed as a response to the surrounding hyper-inflammatory milieu. Therefore, the effect of chronic alcohol on the inflammatory response depends on disease state and the immune cell population.
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9
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Staitieh BS, Auld SC, Ahmed M, Fan X, Smirnova N, Yeligar SM. Granulocyte Macrophage-Colony Stimulating Factor Reverses HIV Protein-Induced Mitochondrial Derangements in Alveolar Macrophages. AIDS Res Hum Retroviruses 2021; 37:224-232. [PMID: 33059459 DOI: 10.1089/aid.2020.0176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Despite the advent of antiretroviral therapy, people living with HIV suffer from a range of infectious and noninfectious pulmonary complications. HIV impairs antioxidant defenses and innate immune function of the alveolar macrophage by diminishing granulocyte macrophage-colony stimulating factor (GM-CSF) signaling. Since GM-CSF may be linked to mitochondria, we sought to determine the effects of HIV on GM-CSF receptor expression and alveolar macrophage mitochondrial function. At an academic medical center, studies were completed on alveolar macrophages isolated from both wild-type and HIV transgenic (HIV Tg) rats and human subjects with and without HIV. Primary macrophages were plated and evaluated for expression of GM-CSF receptor beta, phagocytic index, and mitochondrial function in the presence and absence of GM-CSF treatment. GM-CSF receptor expression and mitochondrial function were impaired in macrophages isolated from HIV Tg rats, and treatment with GM-CSF restored GM-CSF receptor expression and mitochondrial function. GM-CSF treatment of HIV Tg rats also increased alveolar macrophage levels of the mitochondrial proteins voltage-dependent anion-selective channel 1 (VDAC) and glucose-regulated protein 75 (Grp75). Similar to the HIV Tg rat model, impairments in mitochondrial bioenergetics were confirmed in alveolar macrophages isolated from human subjects with HIV. HIV-associated impairments in alveolar macrophage mitochondrial bioenergetics likely contribute to innate immune dysfunction in HIV infection, and GM-CSF treatment may offer a novel therapeutic strategy for mitigating these deleterious effects.
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Affiliation(s)
- Bashar S. Staitieh
- Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Sara C. Auld
- Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Mariam Ahmed
- Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Xian Fan
- Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Natalia Smirnova
- Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Samantha M. Yeligar
- Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
- Atlanta VA Health Care System, Decatur, Georgia, USA
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Rungratanawanich W, Qu Y, Wang X, Essa MM, Song BJ. Advanced glycation end products (AGEs) and other adducts in aging-related diseases and alcohol-mediated tissue injury. Exp Mol Med 2021; 53:168-188. [PMID: 33568752 PMCID: PMC8080618 DOI: 10.1038/s12276-021-00561-7] [Citation(s) in RCA: 125] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 01/30/2023] Open
Abstract
Advanced glycation end products (AGEs) are potentially harmful and heterogeneous molecules derived from nonenzymatic glycation. The pathological implications of AGEs are ascribed to their ability to promote oxidative stress, inflammation, and apoptosis. Recent studies in basic and translational research have revealed the contributing roles of AGEs in the development and progression of various aging-related pathological conditions, such as diabetes, cardiovascular complications, gut microbiome-associated illnesses, liver or neurodegenerative diseases, and cancer. Excessive chronic and/or acute binge consumption of alcohol (ethanol), a widely consumed addictive substance, is known to cause more than 200 diseases, including alcohol use disorder (addiction), alcoholic liver disease, and brain damage. However, despite the considerable amount of research in this area, the underlying molecular mechanisms by which alcohol abuse causes cellular toxicity and organ damage remain to be further characterized. In this review, we first briefly describe the properties of AGEs: their formation, accumulation, and receptor interactions. We then focus on the causative functions of AGEs that impact various aging-related diseases. We also highlight the biological connection of AGE-alcohol-adduct formations to alcohol-mediated tissue injury. Finally, we describe the potential translational research opportunities for treatment of various AGE- and/or alcohol-related adduct-associated disorders according to the mechanistic insights presented.
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Affiliation(s)
- Wiramon Rungratanawanich
- grid.420085.b0000 0004 0481 4802Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, 9000 Rockville Pike, Bethesda, MD 20892 USA
| | - Ying Qu
- grid.420085.b0000 0004 0481 4802Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, 9000 Rockville Pike, Bethesda, MD 20892 USA
| | - Xin Wang
- Neuroapoptosis Drug Discovery Laboratory, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, 60 Fenwood Road, Boston, MA 02115 USA
| | - Musthafa Mohamed Essa
- grid.412846.d0000 0001 0726 9430Department of Food Science and Nutrition, Aging and Dementia Research Group, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khoud, Muscat, Oman ,grid.412846.d0000 0001 0726 9430Aging and Dementia Research Group, Sultan Qaboos University, Muscat, Oman
| | - Byoung-Joon Song
- grid.420085.b0000 0004 0481 4802Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, 9000 Rockville Pike, Bethesda, MD 20892 USA
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PECULIARITIES OF CONNECTIVE TISSUE DEGRADATION IN RAT’S LIVER ON EARLY TERMS OF CHRONIC ALCOHOLIC HEPATITIS MODELLING. WORLD OF MEDICINE AND BIOLOGY 2021. [DOI: 10.26724/2079-8334-2021-1-75-197-200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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Prantner D, Nallar S, Vogel SN. The role of RAGE in host pathology and crosstalk between RAGE and TLR4 in innate immune signal transduction pathways. FASEB J 2020; 34:15659-15674. [PMID: 33131091 DOI: 10.1096/fj.202002136r] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/07/2020] [Accepted: 10/13/2020] [Indexed: 12/15/2022]
Abstract
Although the innate immune receptor protein, Receptor for Advanced Glycation End products (RAGE), has been extensively studied, there has been renewed interest in RAGE for its potential role in sepsis, along with a host of other inflammatory diseases of chronic, noninfectious origin. In contrast to other innate immune receptors, for example, Toll-like receptors (TLRs), that recognize ligands derived from pathogenic organisms that are collectively known as "pathogen-associated molecular patterns" (PAMPs) or host-derived "damage-associated molecular patterns" (DAMPs), RAGE has been shown to recognize a broad collection of DAMPs exclusively. Historically, these DAMPs have been shown to be pro-inflammatory in nature. Early studies indicated that the adaptor molecule, MyD88, might be important for this change. More recent studies have explored further the mechanisms underlying this inflammatory change. Overall, the newer results have shown that there is extensive crosstalk between RAGE and TLRs. The three canonical RAGE ligands, Advanced Glycation End products (AGEs), HMGB1, and S100 proteins, have all been shown to activate both TLRs and RAGE to varying degrees in order to induce inflammation in in vitro models. As with any field that delves deeply into innate signaling, obstacles of reagent purity may be a cause of some of the discrepancies in the literature, and we have found that commercial antibodies that have been widely used exhibit a high degree of nonspecificity. Nonetheless, the weight of published evidence has led us to speculate that RAGE may be physically interacting with TLRs on the cell surface to elicit inflammation via MyD88-dependent signaling.
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Affiliation(s)
- Daniel Prantner
- Department of Microbiology and Immunology, School of Medicine, University of Maryland, Baltimore, MD, USA
| | - Shreeram Nallar
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, MD, USA
| | - Stefanie N Vogel
- Department of Microbiology and Immunology, School of Medicine, University of Maryland, Baltimore, MD, USA
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13
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Chen Y, Huang Y, Xiong B, Luo H, Song X. Dexmedetomidine ameliorates renal ischemia reperfusion-mediated activation of the NLRP3 inflammasome in alveolar macrophages. Gene 2020; 758:144973. [PMID: 32707303 DOI: 10.1016/j.gene.2020.144973] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 07/01/2020] [Accepted: 07/17/2020] [Indexed: 02/07/2023]
Abstract
Renal ischemia-reperfusion (rI/R) is a risk factor for acute lung injury (ALI). Alveolar macrophages (AMs) activation mediated by rI/R-induced ALI is one of the pathogeneses associated with the development of ALI. In rI/R, α2-adrenergic receptor agonists have been indicated to be effective in decreasing urea nitrogen concentrations. In this study, we explored the underlying pathogenesis of the clinically obtainable α2-adrenergic receptor agonist dexmedetomidine (DEX) in protecting against rI/R -mediated AMs activation. We incubated AMs with the serum of sham and rI/R rats in the presence or absence of various concentrations of DEX. We used an enzyme-linked immunosorbent assay to detect the secretion levels of GSH, LDH, IL-18, IL-1β, and HMGB1 in the culture supernatant. We employed real-time polymerase chain reaction to assess the expression of NOX-4 mRNA, and western blotting to observe the protein levels of NOX-4, the NLRP3 inflammasome, AMPK, and eNOS. In addition, we used immunofluorescence to analyze ROS and MMP activity. Incubation of AMs with DEX suppressed rI/R-mediated cellular LDH production and ROS release. DEX also abolished the rI/R-mediated decrease in the activity of GSH and increased the levels of the rI/R-related NADPH oxidase protein NOX-4. Furthermore, DEX reduced the amelioration of the mitochondrial potential induced by rI/R. Our study showed that DEX inhibits rI/R-mediated levels of the NLRP3 inflammasome proteins ASC, NLRP3, HMGB1 and p20, and ameliorates rI/R-mediated AMPK signaling inactivation. Therefore, DEX reduces the levels of two mediators that are activated by the NLRP3 inflammasome: IL-18 and IL-1β. Finally, our study established that DEX mitigates the rI/R-mediated decrease in eNOS, demonstrating its protective functions against AMs activation. In conclusion, our study demonstrated that the protective action of DEX in AMs is induced through amelioration of HMGB1-NLRP3 inflammasome-AMPK signaling. Our results suggest that the anesthetic reagent DEX exerts beneficial effects to ameliorate rI/R-induced ALI.
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Affiliation(s)
- Yingying Chen
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
| | - Ying Huang
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
| | - Bingrui Xiong
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
| | - Huan Luo
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
| | - Xuemin Song
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China.
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Yang Q, Gao P, Mu M, Tao X, He J, Wu F, Guo S, Qian Z, Song C. [Phagocytosis of alveolar macrophages is suppressed in a mouse model of lipopolysaccharide-induced acute lung injury]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2020; 40:376-381. [PMID: 32376590 DOI: 10.12122/j.issn.1673-4254.2020.03.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the changes in phagocytic function of alveolar macrophages (AMs) in mice with lipopolysaccharide (LPS)-induced acute lung injury (ALI) and explore the possible mechanism. METHODS Kunming mice were randomly divided into normal control group and ALI (induced by LPS instillation in the airway) model group. AMs were obtained from bronchoalveolar lavage fluid in both groups, and phagocytosis of the AMs was observed using flow cytometry and fluorescence microscopy. Western blotting and ELISA were used to detect the expression and secretion of IL-33 in the lung tissue of the mice. We also detected the secretion of IL-33 by an alveolar epithelial cell line MLE-12 in response to stimulation with different concentrations of LPS. The AMs from the normal control mice were treated with different concentrations of LPS and IL-33, and the changes in the phagocytic activity of the cells were observed. RESULTS Compared with those in normal control group, the percentage of AMs phagocytosing fluorescent microspheres was significantly decreased, and the expression of IL-33 in lung tissue and IL-33 level in the bronchoalveolar lavage fluid were significantly increased in ALI mice (P < 0.01). LPS (100-1000 ng/mL) obviously promoted the secretion of IL-33 in cultured MLE-12 cells (P < 0.01). Both LPS (10-500 ng/mL) and IL-33 (100 ng/mL) significantly inhibited the phagocytic activity of the AMs from normal control mice (P < 0.01). CONCLUSIONS The phagocytic activity of AMs is weakened in ALI mice possibly due to direct LPS stimulation and the inhibitory effect of the alarmin IL-33 produced by LPS-stimulated alveolar epithelial cells.
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Affiliation(s)
- Qian Yang
- Department of Immunology, School of Laboratory Medicine, Bengbu Medical College; Anhui Provincial Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - Peiyu Gao
- Department of Immunology, School of Laboratory Medicine, Bengbu Medical College; Anhui Provincial Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - Mimi Mu
- Department of Immunology, School of Laboratory Medicine, Bengbu Medical College; Anhui Provincial Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - Xiangnan Tao
- Department of Clinical Laboratory, Second Affiliated Hospital of Bengbu Medical College, Bengbu 233040, China
| | - Jing He
- Department of Immunology, School of Laboratory Medicine, Bengbu Medical College; Anhui Provincial Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - Fengjiao Wu
- Department of Immunology, School of Laboratory Medicine, Bengbu Medical College; Anhui Provincial Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - Shujun Guo
- Department of Immunology, School of Laboratory Medicine, Bengbu Medical College; Anhui Provincial Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - Zhongqing Qian
- Department of Immunology, School of Laboratory Medicine, Bengbu Medical College; Anhui Provincial Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - Chuanwang Song
- Department of Immunology, School of Laboratory Medicine, Bengbu Medical College; Anhui Provincial Key Laboratory of Infection and Immunity, Bengbu 233030, China
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Wang X, Wei L, Zhu J, He B, Kong B, Xue Z, Jin X, Fu Z. Environmentally relevant doses of tetrabromobisphenol A (TBBPA) cause immunotoxicity in murine macrophages. CHEMOSPHERE 2019; 236:124413. [PMID: 31545206 DOI: 10.1016/j.chemosphere.2019.124413] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 07/01/2019] [Accepted: 07/19/2019] [Indexed: 06/10/2023]
Abstract
TBBPA is one of the main brominated flame retardants and is ubiquitous in the environment. TBBPA can directly encounter immune cells via the bloodstream, posing potential immunotoxicity. To understand the immunomodulating effect of TBBPA on macrophages, the murine macrophages, RAW 264.7, were exposed to TBBPA at environmentally relevant concentrations (1-100 nM). The results showed that TBBPA at the selected concentrations did not alter cell viability of RAW 264.7 cells with or without LPS stimulation. TBBPA upregulated the expression of pro-inflammatory cytokines, including IL-1β, IL-6, and TNF-α, whereas it attenuated the LPS-stimulated expression of these pro-inflammatory cytokines, and the expression of anti-inflammatory cytokines, including IL-4, IL-10, and IL-13. In addition, TBBPA reduced the mRNA levels of antigen-presenting-related genes, including H2-K2, H2-Aa, Cd80, and Cd86. Moreover, TBBPA impaired the phagocytic activity of macrophages. Furthermore, exposure to TBBPA significantly elevated the protein levels of phosphorylated NF-κB p65 (p-p65), while it reduced LPS-stimulated p-p65 protein levels. DCFH-DA staining assays showed that TBBPA caused a slight but significant elevation in reactive oxygen species levels. The data obtained in the present study demonstrated that exposure to environmentally relevant concentrations of TBBPA posed immunotoxicity in macrophages and unveiled a potential health risk of TBBPA.
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Affiliation(s)
- Xia Wang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Lai Wei
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Jianbo Zhu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Bingnan He
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Baida Kong
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Zimeng Xue
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Xini Jin
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Zhengwei Fu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China.
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