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Yeudall S, Upchurch CM, Leitinger N. The clinical relevance of heme detoxification by the macrophage heme oxygenase system. Front Immunol 2024; 15:1379967. [PMID: 38585264 PMCID: PMC10995405 DOI: 10.3389/fimmu.2024.1379967] [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: 01/31/2024] [Accepted: 03/11/2024] [Indexed: 04/09/2024] Open
Abstract
Heme degradation by the heme oxygenase (HMOX) family of enzymes is critical for maintaining homeostasis and limiting heme-induced tissue damage. Macrophages express HMOX1 and 2 and are critical sites of heme degradation in healthy and diseased states. Here we review the functions of the macrophage heme oxygenase system and its clinical relevance in discrete groups of pathologies where heme has been demonstrated to play a driving role. HMOX1 function in macrophages is essential for limiting oxidative tissue damage in both acute and chronic hemolytic disorders. By degrading pro-inflammatory heme and releasing anti-inflammatory molecules such as carbon monoxide, HMOX1 fine-tunes the acute inflammatory response with consequences for disorders of hyperinflammation such as sepsis. We then discuss divergent beneficial and pathological roles for HMOX1 in disorders such as atherosclerosis and metabolic syndrome, where activation of the HMOX system sits at the crossroads of chronic low-grade inflammation and oxidative stress. Finally, we highlight the emerging role for HMOX1 in regulating macrophage cell death via the iron- and oxidation-dependent form of cell death, ferroptosis. In summary, the importance of heme clearance by macrophages is an active area of investigation with relevance for therapeutic intervention in a diverse array of human diseases.
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Affiliation(s)
- Scott Yeudall
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA, United States
- Medical Scientist Training Program, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Clint M. Upchurch
- Department of Neuroscience, Center for Brain Immunology and Glia (BIG), University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Norbert Leitinger
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA, United States
- Robert M Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, United States
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2
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Khalaf HM, Hafez SMNA, Abdalla AM, Welson NN, Abdelzaher WY, Abdelbaky FAF. Role of Platelet-activating factor and HO-1 in mediating the protective effect of rupatadine against 5-fluorouracil-induced hepatotoxicity in rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:40190-40203. [PMID: 35119631 PMCID: PMC9120097 DOI: 10.1007/s11356-022-18899-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 01/23/2022] [Indexed: 05/06/2023]
Abstract
5-fluorouracil (5-FU) is a widely used chemotherapeutic drug, but its hepatotoxicity challenges its clinical use. Thus, searching for a hepatoprotective agent is highly required to prevent the accompanied hepatic hazards. The current study aimed to investigate the potential benefit and mechanisms of action of rupatadine (RU), a Platelet-activating factor (PAF) antagonist, in the prevention of 5-FU-related hepatotoxicity in rats. Hepatotoxicity was developed in male albino rats by a single 5-FU (150 mg/kg) intra-peritoneal injection on the 7th day of the experiment. RU (3 mg/kg/day) was orally administrated to the rodents for 10 days. Hepatic toxicity was assessed by measuring both liver and body weights, serum alanine aminotransferase and aspartate aminotransferase (ALT and AST), hepatic oxidative stress parameters (malondialdehyde (MDA), nitric oxide levels (NOx), reduced glutathione (GSH), superoxide dismutase (SOD)), and heme oxygenase-1 (HO-1). Inflammatory markers expressions (inducible nitric oxide synthase (iNOS), tumor necrosis factor-alpha (TNFα), interleukins; IL-1B, IL-6), the apoptotic marker (caspase-3), and PAF were measured in the hepatic tissue. 5-FU-induced hepatotoxicity was proved by the biochemical along with histopathological assessments. RU ameliorated 5-FU-induced liver damage as proved by the improved serum ALT, AST, and hepatic oxidative stress parameters, the attenuated expression of hepatic pro-inflammatory cytokines and PAF, and the up-regulation of HO-1. Therefore, it can be concluded that RU pretreatment exerted a hepatoprotective effect against 5-FU-induced liver damage through both its powerful anti-inflammatory, antioxidant, and anti-apoptotic effect.
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Affiliation(s)
| | | | | | - Nermeen N. Welson
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt
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Heme-Oxygenase-1 Attenuates Oxidative Functions of Antigen Presenting Cells and Promotes Regulatory T Cell Differentiation during Fasciola hepatica Infection. Antioxidants (Basel) 2021; 10:antiox10121938. [PMID: 34943041 PMCID: PMC8750899 DOI: 10.3390/antiox10121938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 11/03/2021] [Accepted: 11/10/2021] [Indexed: 12/19/2022] Open
Abstract
Fasciola hepatica is a fluke that infects livestock and humans causing fasciolosis, a zoonotic disease of increasing importance due to its worldwide distribution and high economic losses. The parasite regulates the host immune system by inducing a strong Th2 and regulatory T (Treg) cell immune response through mechanisms that might involve the expression or activity of heme-oxygenase-1 (HO-1), the rate-limiting enzyme in the catabolism of free heme that also has immunoregulatory and antioxidant properties. In this paper, we show that F. hepatica-infected mice upregulate HO-1 on peritoneal antigen-presenting cells (APC), which produce decreased levels of both reactive oxygen and nitrogen species (ROS/RNS). The presence of these cells was associated with increased levels of regulatory T cells (Tregs). Blocking the IL-10 receptor (IL-10R) during parasite infection demonstrated that the presence of splenic Tregs and peritoneal APC expressing HO-1 were both dependent on IL-10 activity. Furthermore, IL-10R neutralization as well as pharmacological treatment with the HO-1 inhibitor SnPP protected mice from parasite infection and allowed peritoneal APC to produce significantly higher ROS/RNS levels than those detected in cells from infected control mice. Finally, parasite infection carried out in gp91phox knockout mice with inactive NADPH oxidase was associated with decreased levels of peritoneal HO-1+ cells and splenic Tregs, and partially protected mice from the hepatic damage induced by the parasite, revealing the complexity of the molecular mechanisms involving ROS production that participate in the complex pathology induced by this helminth. Altogether, these results contribute to the elucidation of the immunoregulatory and antioxidant role of HO-1 induced by F. hepatica in the host, providing alternative checkpoints that might control fasciolosis.
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Rossi M, Korpak K, Doerfler A, Zouaoui Boudjeltia K. Deciphering the Role of Heme Oxygenase-1 (HO-1) Expressing Macrophages in Renal Ischemia-Reperfusion Injury. Biomedicines 2021; 9:biomedicines9030306. [PMID: 33809696 PMCID: PMC8002311 DOI: 10.3390/biomedicines9030306] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/06/2021] [Accepted: 03/10/2021] [Indexed: 12/30/2022] Open
Abstract
Ischemia-reperfusion injury (IRI) is a leading cause of acute kidney injury (AKI), which contributes to the development of chronic kidney disease (CKD). Renal IRI combines major events, including a strong inflammatory immune response leading to extensive cell injuries, necrosis and late interstitial fibrosis. Macrophages act as key players in IRI-induced AKI by polarizing into proinflammatory M1 and anti-inflammatory M2 phenotypes. Compelling evidence exists that the stress-responsive enzyme, heme oxygenase-1 (HO-1), mediates protection against renal IRI and modulates macrophage polarization by enhancing a M2 subset. Hereafter, we review the dual effect of macrophages in the pathogenesis of IRI-induced AKI and discuss the critical role of HO-1 expressing macrophages.
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Affiliation(s)
- Maxime Rossi
- Department of Urology, CHU de Charleroi, Université libre de Bruxelles (ULB), 6000 Charleroi, Belgium;
- Laboratory of Experimental Medicine (ULB 222 Unit), CHU de Charleroi, Hôpital André Vésale, Université libre de Bruxelles (ULB), 6110 Montigny-le-Tilleul, Belgium;
- Correspondence: (M.R.); (K.Z.B.)
| | - Kéziah Korpak
- Laboratory of Experimental Medicine (ULB 222 Unit), CHU de Charleroi, Hôpital André Vésale, Université libre de Bruxelles (ULB), 6110 Montigny-le-Tilleul, Belgium;
- Department of Geriatric Medicine, CHU de Charleroi, Hôpital André Vésale, Université libre de Bruxelles (ULB), 6110 Montigny-le-Tilleul, Belgium
| | - Arnaud Doerfler
- Department of Urology, CHU de Charleroi, Université libre de Bruxelles (ULB), 6000 Charleroi, Belgium;
| | - Karim Zouaoui Boudjeltia
- Laboratory of Experimental Medicine (ULB 222 Unit), CHU de Charleroi, Hôpital André Vésale, Université libre de Bruxelles (ULB), 6110 Montigny-le-Tilleul, Belgium;
- Correspondence: (M.R.); (K.Z.B.)
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Rossi M, Piagnerelli M, Van Meerhaeghe A, Zouaoui Boudjeltia K. Heme oxygenase-1 (HO-1) cytoprotective pathway: A potential treatment strategy against coronavirus disease 2019 (COVID-19)-induced cytokine storm syndrome. Med Hypotheses 2020; 144:110242. [PMID: 33254548 PMCID: PMC7467863 DOI: 10.1016/j.mehy.2020.110242] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/16/2020] [Accepted: 08/30/2020] [Indexed: 02/07/2023]
Abstract
The outbreak of coronavirus disease 2019 (COVID-19) requires urgent need for effective treatment. Severe COVID-19 is characterized by a cytokine storm syndrome with subsequent multiple organ failure (MOF) and acute respiratory distress syndrome (ARDS), which may lead to intensive care unit and increased risk of death. While awaiting a vaccine, targeting COVID-19-induced cytokine storm syndrome appears currently as the efficient strategy to reduce the mortality of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The stress-responsive enzyme, heme oxygenase-1 (HO-1) is largely known to protect against inflammatory response in animal models. HO-1 is induced by hemin, a well-tolerated molecule, used for decades in the treatment of acute intermittent porphyria. Experimental studies showed that hemin-induced HO-1 mitigates cytokine storm and lung injury in mouse models of sepsis and renal ischemia-reperfusion injury. Furthermore, HO-1 may also control numerous viral infections by inhibiting virus replication. In this context, we suggest the hypothesis that HO-1 cytoprotective pathway might be a promising target to control SARS-CoV-2 infection and mitigate COVID-19-induced cytokine storm and subsequent ARDS.
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Affiliation(s)
- Maxime Rossi
- Institute for Medical Immunology (IMI), Université Libre de Bruxelles, Gosselies, Belgium; Department of Urology, CHU de Charleroi, Université Libre de Bruxelles, Charleroi, Belgium.
| | - Michael Piagnerelli
- Department of Intensive Care, CHU de Charleroi, Université Libre de Bruxelles, Charleroi, Belgium; Laboratory of Experimental Medicine (ULB 222 Unit), CHU de Charleroi, A. Vésale Hospital, Université Libre de Bruxelles, Montigny-le-Tilleul, Belgium
| | - Alain Van Meerhaeghe
- Laboratory of Experimental Medicine (ULB 222 Unit), CHU de Charleroi, A. Vésale Hospital, Université Libre de Bruxelles, Montigny-le-Tilleul, Belgium
| | - Karim Zouaoui Boudjeltia
- Laboratory of Experimental Medicine (ULB 222 Unit), CHU de Charleroi, A. Vésale Hospital, Université Libre de Bruxelles, Montigny-le-Tilleul, Belgium
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Club Cell Heme Oxygenase-1 Deletion: Effects in Hyperoxia-Exposed Adult Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:2908271. [PMID: 32587658 PMCID: PMC7303751 DOI: 10.1155/2020/2908271] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/29/2020] [Accepted: 05/16/2020] [Indexed: 02/06/2023]
Abstract
Thioredoxin reductase-1 (TXNRD1) inhibition activates nuclear factor (erythroid-derived 2)-like 2 (Nrf2) responses and prevents acute lung injury (ALI). Heme oxygenase-1 (HO-1) induction following TXNRD1 inhibition is Nrf2-dependent in airway epithelial (club) cells in vitro. The influence of club cell HO-1 on lung development and lung injury responses is poorly understood. The present studies characterized the effects of hyperoxia on club cell-specific HO-1 knockout (KO) mice. These mice were generated by crossing Hmox1 flox mice with transgenic mice expressing cre recombinase under control of the club cell-specific Scgb1a1 promoter. Baseline analyses of lung architecture and function performed in age-matched adult wild-type and KO mice indicated an increased alveolar size and airway resistance in HO-1 KO mice. In subsequent experiments, adult wild-type and HO-1 KO mice were either continuously exposed to >95% hyperoxia or room air for 72 h or exposed to >95 hyperoxia for 48 h followed by recovery in room air for 48 h. Injury was quantitatively assessed by calculating right lung/body weight ratios (g/kg). Analyses indicated an independent effect of hyperoxia but not genotype on right lung/body weight ratios in both wild-type and HO-1 KO mice. The magnitude of increases in right lung/body weight ratios was similar in mice of both genotypes. In the recovery model, an independent effect of hyperoxia but not genotype was also detected. In contrast to the continuous exposure model, right lung/body weight ratio mice were significantly elevated in HO-1 KO but not wild-type mice. Though club cell HO-1 does not alter hyperoxic sensitivity in adult mice, it significantly influences lung development and resolution of lung injury following acute hyperoxic exposure.
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Rossi M, Delbauve S, Roumeguère T, Wespes E, Leo O, Flamand V, Le Moine A, Hougardy JM. HO-1 mitigates acute kidney injury and subsequent kidney-lung cross-talk. Free Radic Res 2019; 53:1035-1043. [PMID: 31530210 DOI: 10.1080/10715762.2019.1668936] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Ischemia-reperfusion injury (IRI) is a leading cause of acute kidney injury (AKI), which contributes to the development of chronic kidney disease (CKD). IRI-induced AKI releases proinflammatory cytokines (e.g. IL-1β, TNF-α, IL-6) that induce a systemic inflammatory response, resulting in proinflammatory cells recruitment and remote organ damage. AKI is associated with poor outcomes, particularly when extrarenal complications or distant organ injuries occur. Acute lung injury (ALI) is a major remote organ dysfunction associated with AKI. Hence, kidney-lung cross-talk remains a clinical challenge, especially in critically ill population. The stress-responsive enzyme, heme oxygenase-1 (HO-1) is largely known to protect against renal IRI and may be preventively induced using hemin prior to renal insult. However, the use of hemin-induced HO-1 to prevent AKI-induced ALI remains poorly investigated. Mice received an intraperitoneal injection of hemin or sterile saline 1 day prior to surgery. Twenty-four hours later, mice underwent bilateral renal IRI for 26 min or sham surgery. After 4 or 24 h of reperfusion, mice were sacrificed. Hemin-induced HO-1 improved renal outcomes after IRI (i.e. fewer renal damage, renal inflammation, and oxidative stress). This protective effect was associated with a dampened systemic inflammation (i.e. IL-6 and KC). Subsequently, mitigated lung inflammation was found in hemin-treated mice (i.e. neutrophils influx and lung KC). The present study demonstrates that hemin-induced HO-1 controls the magnitude of renal IRI and the subsequent AKI-induced ALI. Therefore, targeting HO-1 represents a promising approach to prevent the impact of renal IRI on distant organs, such as lung.
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Affiliation(s)
- Maxime Rossi
- Institute for Medical Immunology (IMI), Université Libre de Bruxelles , Gosselies , Belgium.,Department of Urology, CUB Hôpital Erasme, Université Libre de Bruxelles , Brussels , Belgium.,Department of Urology, CHU-Charleroi, Université Libre de Bruxelles , Charleroi , Belgium
| | - Sandrine Delbauve
- Institute for Medical Immunology (IMI), Université Libre de Bruxelles , Gosselies , Belgium
| | - Thierry Roumeguère
- Department of Urology, CUB Hôpital Erasme, Université Libre de Bruxelles , Brussels , Belgium
| | - Eric Wespes
- Department of Urology, CHU-Charleroi, Université Libre de Bruxelles , Charleroi , Belgium
| | - Oberdan Leo
- Institute for Medical Immunology (IMI), Université Libre de Bruxelles , Gosselies , Belgium.,Laboratory of Immunobiology, Institute for Molecular Biology and Medicine, Université Libre de Bruxelles , Gosselies , Belgium
| | - Véronique Flamand
- Institute for Medical Immunology (IMI), Université Libre de Bruxelles , Gosselies , Belgium
| | - Alain Le Moine
- Institute for Medical Immunology (IMI), Université Libre de Bruxelles , Gosselies , Belgium.,Department of Nephrology, Dialysis and Renal Transplantation, CUB Hôpital Erasme, Université Libre de Bruxelles , Brussels , Belgium
| | - Jean-Michel Hougardy
- Institute for Medical Immunology (IMI), Université Libre de Bruxelles , Gosselies , Belgium.,Department of Nephrology, Dialysis and Renal Transplantation, CUB Hôpital Erasme, Université Libre de Bruxelles , Brussels , Belgium
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Ali FF, Abdelzaher WY, Ibrahim RA, Elroby Ali DM. Amelioration of estrogen-induced endometrial hyperplasia in female rats by hemin via heme-oxygenase-1 expression, suppression of iNOS, p38 MAPK, and Ki67. Can J Physiol Pharmacol 2019; 97:1159-1168. [PMID: 31505119 DOI: 10.1139/cjpp-2019-0287] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Although heme oxygenase-1 (HO-1) is part of an endogenous defense system implicated in the homeostatic response, its role in cell proliferation and tumor progression is still controversial. Endometrial hyperplasia (EH) is associated with high risk of endometrial cancer (EC). Therefore, we aimed to evaluate the effect of hemin, a HO-1 inducer, against EH. Thirty-two female rats (60-70 days old) were divided into 4 groups treated for 1 week: vehicle control group, hemin group (25 mg/kg; i.p. 3 times/week), estradiol valerate (EV) group (2 mg/kg per day, p.o.), and hemin plus EV group. Sera were obtained for reduced glutathione level. Uterine malondialdehyde, superoxide dismutase, total nitrite/nitrate, and interleukin-1β levels were estimated. HO-1 and p38 mitogen-activated protein kinase expressions were obtained in uterine tissue. Uterine histological and immunohistochemical assessment of iNOS and Ki67 were also done. Results demonstrated that upregulation of HO-1 expression in hemin plus EV rats led to amelioration of EH which was confirmed with histological examination. This was associated with significant decrease in oxidative stress parameters, p38 mitogen-activated protein kinase expression, and interleukin-1β level. Also, uterine iNOS and Ki67 expressions were markedly suppressed. In conclusion, upregulation of HO-1 expression via hemin has ameliorative effect against EH through its antioxidant, anti-inflammatory, and antiproliferative actions.
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Affiliation(s)
- Fatma F Ali
- Department of Medical Physiology, Faculty of Medicine, Minia University, Egypt
| | | | - Randa Ahmed Ibrahim
- Department of Histology and Cell Biology, Faculty of Medicine, Minia University, Egypt
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Zhang M, Liu F, Zhou P, Wang Q, Xu C, Li Y, Bian L, Liu Y, Zhou J, Wang F, Yao Y, Fang Y, Li D. The MTOR signaling pathway regulates macrophage differentiation from mouse myeloid progenitors by inhibiting autophagy. Autophagy 2019; 15:1150-1162. [PMID: 30724690 DOI: 10.1080/15548627.2019.1578040] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Understanding of the mechanism for myeloid differentiation provides important insights into the hematopoietic developmental processes. By using an ESC-derived myeloid progenitor cell model, we found that CSF2/GM-CSF triggered macrophage differentiation and activation of the MTOR signaling pathway. Activation or inhibition of the MTOR signaling enhanced or attenuated macrophage differentiation, respectively, suggesting a critical function. We further showed that macroautophagy/autophagy was inhibited with the addition of CSF2. Furthermore, pharmacological inhibition and genetic modification of autophagy enhanced macrophage differentiation and rescued the inhibitory effect on differentiation caused by MTOR inhibition. Thus, the MTOR signaling pathway regulates macrophage differentiation of myeloid progenitors by inhibiting autophagy. Our results provide new insights into the mechanisms for myeloid differentiation and may prove useful for therapeutic applications of hematopoietic and myeloid progenitor cells. Abbreviations: 2-DG: 2-deoxy-D-glucose; ADGRE1/F4/80: adhesion G protein-coupled receptor E1; BM: bone marrow; CQ: chloroquine; ECAR: extracellular acidification rate; ESC: embryonic stem cell; CSF2/GM-CSF: colony stimulating factor 2; CSF3/G-CSF: colony stimulating factor 3; HPC: hematopoietic progenitor cell; ITGAM/CD11b: integrin alpha M; LPS: lipopolysaccharide; MFI: median fluorescence intensity; MTOR: mechanistic target of rapamycin kinase; RPS6KB1/p70S6K1: ribosomal protein S6 kinase, polypeptide 1; shRNA: short hairpin RNA; SQSTM1/p62: sequestosome 1.
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Affiliation(s)
- Meichao Zhang
- a Department of Radiation Oncology, Shanghai Ninth People's Hospital , Shanghai Jiaotong University School of Medicine , Shanghai , China
| | - Furao Liu
- a Department of Radiation Oncology, Shanghai Ninth People's Hospital , Shanghai Jiaotong University School of Medicine , Shanghai , China
| | - Pingting Zhou
- a Department of Radiation Oncology, Shanghai Ninth People's Hospital , Shanghai Jiaotong University School of Medicine , Shanghai , China
| | - Qian Wang
- b Department of Oncology, Shanghai Ninth People's Hospital , Shanghai Jiaotong University School of Medicine , Shanghai , China
| | - Ci Xu
- a Department of Radiation Oncology, Shanghai Ninth People's Hospital , Shanghai Jiaotong University School of Medicine , Shanghai , China
| | - Yanyan Li
- a Department of Radiation Oncology, Shanghai Ninth People's Hospital , Shanghai Jiaotong University School of Medicine , Shanghai , China
| | - Lei Bian
- a Department of Radiation Oncology, Shanghai Ninth People's Hospital , Shanghai Jiaotong University School of Medicine , Shanghai , China
| | - Yuanhua Liu
- c Department of Chemotherapy , Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province , Nanjing , Jiangsu , China
| | - Jiaxi Zhou
- d State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital , Chinese Academy of Medical Sciences & Peking Union Medical College , Tianjin , China
| | - Fei Wang
- e Department of Cell and Developmental Biology , University of Illinois at Urbana-Champaign , Urbana , IL , USA
| | - Yuan Yao
- a Department of Radiation Oncology, Shanghai Ninth People's Hospital , Shanghai Jiaotong University School of Medicine , Shanghai , China
| | - Yong Fang
- f Department of Burns and Plastic Surgery, Shanghai Ninth People's Hospital , Shanghai JiaoTong University School of Medicine , Shanghai , China
| | - Dong Li
- a Department of Radiation Oncology, Shanghai Ninth People's Hospital , Shanghai Jiaotong University School of Medicine , Shanghai , China
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Iron Homeostasis in the Lungs-A Balance between Health and Disease. Pharmaceuticals (Basel) 2019; 12:ph12010005. [PMID: 30609678 PMCID: PMC6469191 DOI: 10.3390/ph12010005] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 12/23/2018] [Accepted: 12/25/2018] [Indexed: 12/15/2022] Open
Abstract
A strong mechanistic link between the regulation of iron homeostasis and oxygen sensing is evident in the lung, where both systems must be properly controlled to maintain lung function. Imbalances in pulmonary iron homeostasis are frequently associated with respiratory diseases, such as chronic obstructive pulmonary disease and with lung cancer. However, the underlying mechanisms causing alterations in iron levels and the involvement of iron in the development of lung disorders are incompletely understood. Here, we review current knowledge about the regulation of pulmonary iron homeostasis, its functional importance, and the link between dysregulated iron levels and lung diseases. Gaining greater knowledge on how iron contributes to the pathogenesis of these diseases holds promise for future iron-related therapeutic strategies.
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11
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Sugiyama Y, Hiraiwa Y, Hagiya Y, Nakajima M, Tanaka T, Ogura SI. 5-Aminolevulinic acid regulates the immune response in LPS-stimulated RAW 264.7 macrophages. BMC Immunol 2018; 19:41. [PMID: 30567499 PMCID: PMC6300011 DOI: 10.1186/s12865-018-0277-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 11/29/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Macrophages are crucial players in a variety of inflammatory responses to environmental cues. However, it has been widely reported that macrophages cause chronic inflammation and are involved in a variety of diseases, such as obesity, diabetes, metabolic syndrome, and cancer. In this study, we report the suppressive effect of 5-aminolevulinic acid (ALA), via the HO-1-related system, on the immune response of the LPS-stimulated mouse macrophage cell line RAW264.7. RESULTS RAW264.7 cells were treated with LPS with or without ALA, and proinflammatory mediator expression levels and phagocytic ability were assessed. ALA treatment resulted in the attenuation of iNOS and NO expression and the downregulation of proinflammatory cytokines (TNF-α, cyclooxygenase2, IL-1β, IL-6). In addition, ALA treatment did not affect the phagocytic ability of macrophages. To our knowledge, this study is the first to investigate the effect of ALA on macrophage function. Our findings suggest that ALA may have high potential as a novel anti-inflammatory agent. CONCLUSIONS In the present study, we showed that exogenous addition of ALA induces HO-1 and leads to the downregulation of NO and some proinflammatory cytokines. These findings support ALA as a promising anti-inflammatory agent.
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Affiliation(s)
- Yuta Sugiyama
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Kanagawa Japan
| | - Yukari Hiraiwa
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Kanagawa Japan
| | - Yuichiro Hagiya
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Kanagawa Japan
| | | | - Tohru Tanaka
- SBI Pharma CO., LTD., Roppongi, Tokyo, 106-6020 Japan
| | - Shun-ichiro Ogura
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Kanagawa Japan
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Dunigan K, Li Q, Li R, Locy ML, Wall S, Tipple TE. The thioredoxin reductase inhibitor auranofin induces heme oxygenase-1 in lung epithelial cells via Nrf2-dependent mechanisms. Am J Physiol Lung Cell Mol Physiol 2018; 315:L545-L552. [PMID: 30024305 PMCID: PMC6230877 DOI: 10.1152/ajplung.00214.2018] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 07/13/2018] [Accepted: 07/16/2018] [Indexed: 11/22/2022] Open
Abstract
Thioredoxin reductase-1 (TXNRD1) inhibition effectively activates nuclear factor (erythroid-derived 2)-like 2 (Nrf2) responses and attenuates lung injury in acute respiratory distress syndrome (ARDS) and bronchopulmonary dysplasia (BPD) models. Upon TXNRD1 inhibition, heme oxygenase-1 (HO-1) is disproportionally increased compared with Nrf2 target NADPH quinone oxidoreductase-1 (Nqo1). HO-1 has been investigated as a potential therapeutic target in both ARDS and BPD. TXNRD1 is predominantly expressed in airway epithelial cells; however, the mechanism of HO-1 induction by TXNRD1 inhibitors is unknown. We tested the hypothesis that TXNRD1 inhibition induces HO-1 via Nrf2-dependent mechanisms. Wild-type (WT), Nrf2KO1.3, and Nrf2KO2.2 cells were morphologically indistinguishable, indicating that Nrf2 can be deleted from murine-transformed club cells (mtCCs) using CRISPR/Cas9 gene editing. Hemin, a Nrf2-independent HO-1-inducing agent, significantly increased HO-1 expression in WT, Nrf2KO1.3, and Nrf2KO2.2. Auranofin (AFN) (0.5 µM) inhibited TXNRD1 activity by 50% and increased Nqo1 and Hmox1 mRNA levels by 6- and 24-fold, respectively, in WT cells. Despite similar levels of TXNRD1 inhibition, Nqo1 mRNA levels were not different between control and AFN-treated Nrf2KO1.3 and Nrf2KO2.2. AFN slightly increased Hmox1 mRNA levels in Nrf2KO1.3 and Nrf2KO2.2 cells compared with controls. AFN failed to increase HO-1 protein in Nrf2KO1.3 and Nrf2KO2.2 compared with a 36-fold increase in WT mtCCs. Our data indicate that Nrf2 is the primary mechanism by which TXNRD1 inhibitors increase HO-1 in lung epithelia. Future studies will use ARDS and BPD models to define the role of HO-1 in attenuation of lung injury by TXNRD1 inhibitors.
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Affiliation(s)
- Katelyn Dunigan
- Neonatal Redox Biology Laboratory, Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham , Birmingham, Alabama
- University of Alabama at Birmingham , Birmingham, Alabama
| | - Qian Li
- Neonatal Redox Biology Laboratory, Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham , Birmingham, Alabama
- University of Alabama at Birmingham , Birmingham, Alabama
| | - Rui Li
- Neonatal Redox Biology Laboratory, Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham , Birmingham, Alabama
- University of Alabama at Birmingham , Birmingham, Alabama
| | - Morgan L Locy
- University of Alabama at Birmingham , Birmingham, Alabama
| | - Stephanie Wall
- Neonatal Redox Biology Laboratory, Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham , Birmingham, Alabama
- University of Alabama at Birmingham , Birmingham, Alabama
| | - Trent E Tipple
- Neonatal Redox Biology Laboratory, Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham , Birmingham, Alabama
- University of Alabama at Birmingham , Birmingham, Alabama
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13
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Mateus V, Rocha J, Mota-Filipe H, Sepodes B, Pinto R. Hemin reduces inflammation associated with TNBS-induced colitis. Clin Exp Gastroenterol 2018; 11:325-334. [PMID: 30271188 PMCID: PMC6151101 DOI: 10.2147/ceg.s166197] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Purpose Hemin is a heme-oxygenase inducer, which can confer anti-inflammatory, cytoprotective, and antiapoptotic effects. These properties are beneficial therapeutical effects to inflammatory bowel disease (IBD). IBD is a worldwide health problem characterized by chronic inflammation of intestinal epithelium, which promotes intestinal and extraintestinal symptomatology. Current treatment only induces and maintains the patient in remission and results in many side effects. The research of other pharmacologic approaches is crucial to the treatment of IBD. The aim of this study is to evaluate the effect of hemin in the 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis model. Materials and methods Male CD-1 mice with TNBS-induced colitis were treated with a daily dose of hemin 5 mg/kg body weight/day and 10 mg/kg body weight/day intraperitoneal, during 4 days. The evaluated parameters were fecal hemoglobin, alkaline phosphatase (ALP), myeloperoxidase, tumor necrosis factor-α, interleukin (IL)-1β, IL-10, histopathologic analysis, urea, creatinine, and alanine aminotransferase. Results The hemin-treated mice presented a decrease in fecal hemoglobin, ALP, and proinflammatory cytokine concentrations compared to the TNBS group. Histopathology analysis confirmed the decrease in lesion extension produced by hemin. Conclusion These findings suggest that hemin treatment reduces hemorrhagic focus, intestinal damage, tissue inflammation, and lesion extension associated with experimental colitis.
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Affiliation(s)
- Vanessa Mateus
- H&TRC - Health and Technology Research Center, ESTeSL - Lisbon School of Health Technology, Instituto Politécnico de Lisboa, Lisbon, Portugal.,iMed.ULisboa, Faculty of Pharmacy, University of Lisbon, Lisbon, Portugal,
| | - João Rocha
- iMed.ULisboa, Faculty of Pharmacy, University of Lisbon, Lisbon, Portugal,
| | - Hélder Mota-Filipe
- iMed.ULisboa, Faculty of Pharmacy, University of Lisbon, Lisbon, Portugal,
| | - Bruno Sepodes
- iMed.ULisboa, Faculty of Pharmacy, University of Lisbon, Lisbon, Portugal,
| | - Rui Pinto
- iMed.ULisboa, Faculty of Pharmacy, University of Lisbon, Lisbon, Portugal, .,Dr. Joaquim Chaves, Laboratory of Clinical Analysis, Joaquim Chaves Saúde, Lisbon, Portugal,
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14
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Jin LG, Zeng S, Sun XQ, Wu C, Chen JL, Cui M, Pang QF. Deletion 101 residue at caveolin-1 scaffolding domain peptides impairs the ability of increasing heme oxygenase-1 activity. Int Immunopharmacol 2018; 63:137-144. [PMID: 30092496 DOI: 10.1016/j.intimp.2018.07.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 07/02/2018] [Accepted: 07/23/2018] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Resident alveolar macrophages (AMs) are activated and release proinflammatory mediators and chemokines during acute lung injury. We have previous reported that caveolin-1 (Cav-1) scaffolding domain (CSD) peptide inhibited the proinflammatory cytokines expression by up-regulating heme oxygenase-1 (HO-1) activity. In this study, we aimed to investigate the effect of residue R101 in CSD peptide on the activity of HO-1 in AMs. METHODS The binding mode between HO-1 and CSD peptides (WT CSD and Δ101 CSD truncation peptides) was analyzed and the free energy was calculated. The inflammatory genes and M1/M2macrophage polarization-associated genes expression were measured by real-time PCR. The activities of HO-1 were determined by the spectrophotometical method. Western blot analyzed the content of Cav-1, HO-1, IκB and MAPK signals (phosphorylated ERK, JNK and p38 MAPK). RESULTS Δ101CSD peptide could bind to HO-1 protein and to disrupt the interaction of HO-1 and Cav-1. However, Δ101CSD peptide had lower activity of HO-1 in LPS-treated AMs compared with WT CSD. The expression of IL-1β and MCP-1 and NO content were decreased by WT CSD peptide in LPS treated AMs. However, only MCP-1 expression and NO content were downregulated byΔ101CSD peptide. Meanwhile, compared with those in LPS + hemin + WT CSD group, the mRNA expression of TNF-α, Cd86, IL-12b and NOS2 significantly increased while expression of IL10, Arg1 and CD163 significantly decreased in LPS + hemin + Δ101CSD group. The effect of WT CSD peptide on the inhibition of MAPK signaling pathway were stronger than Δ101 CSD peptide evidenced by the level of phosphorylated ERK, JNK and p38 MAPK. CONCLUSION Deletion of residue R101 impairs the ability of CSD peptide to increase HO-1 activity and to dampen inflammatory response in LPS-challenged rat AMs.
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Affiliation(s)
- Liu-Gen Jin
- Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu 214122, China; The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214062, China
| | - Si Zeng
- Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, China
| | - Xue-Qian Sun
- Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Chen Wu
- Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jun-Liang Chen
- Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Meng Cui
- Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Qing-Feng Pang
- Wuxi Medical School, Jiangnan University, Wuxi, Jiangsu 214122, China.
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15
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Yang T, Sun Y, Mao L, Zhang M, Li Q, Zhang L, Shi Y, Leak RK, Chen J, Zhang F. Brain ischemic preconditioning protects against ischemic injury and preserves the blood-brain barrier via oxidative signaling and Nrf2 activation. Redox Biol 2018; 17:323-337. [PMID: 29775963 PMCID: PMC6007054 DOI: 10.1016/j.redox.2018.05.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 04/23/2018] [Accepted: 05/03/2018] [Indexed: 12/30/2022] Open
Abstract
Brain ischemic preconditioning (IPC) with mild ischemic episodes is well known to protect the brain against subsequent ischemic challenges. However, the underlying mechanisms are poorly understood. Here we demonstrate the critical role of the master redox transcription factor, nuclear factor (erythroid-derived 2)-like 2 (Nrf2), in IPC-mediated neuroprotection and blood-brain barrier (BBB) preservation. We report that IPC causes generation of endogenous lipid electrophiles, including 4-hydroxy-2-nonenal (4-HNE), which release Nrf2 from inhibition by Keap1 (via Keap1-C288) and inhibition by glycogen synthase kinase 3β (via GSK3β-C199). Nrf2 then induces expression of its target genes, including a new target, cadherin 5, a key component of adherens junctions of the BBB. These effects culminate in mitigation of BBB leakage and of neurological deficits after stroke. Collectively, these studies are the first to demonstrate that IPC protects the BBB against ischemic injury by generation of endogenous electrophiles and activation of the Nrf2 pathway through inhibition of Keap1- and GSK3β-dependent Nrf2 degradation.
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Affiliation(s)
- Tuo Yang
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Yang Sun
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Leilei Mao
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA; Department of Neurology and Key Laboratory of Cerebral Microcirculation, University of Shandong, Affiliated Hospital of Taishan Medical College, Tai'an, Shandong, China
| | - Meijuan Zhang
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA; Department of Neurology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Qianqian Li
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Lili Zhang
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Yejie Shi
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Rehana K Leak
- Graduate School of Pharmaceutical Sciences, Duquesne University, Pittsburgh, PA, USA
| | - Jun Chen
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA; Geriatric Research, Educational and Clinical Center, Veterans Affairs Pittsburgh Health Care System, Pittsburgh, PA, USA
| | - Feng Zhang
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, USA; Department of Neurology and Key Laboratory of Cerebral Microcirculation, University of Shandong, Affiliated Hospital of Taishan Medical College, Tai'an, Shandong, China.
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16
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Yang H, Chen B, Zhao Z, Zhang L, Zhang Y, Chen J, Zhang X, Zhang X, Zhao L. Heme oxygenase-1 exerts pro-apoptotic effects on hepatic stellate cells in vitro through regulation of nuclear factor-κB. Exp Ther Med 2018; 16:291-299. [PMID: 29896252 PMCID: PMC5995052 DOI: 10.3892/etm.2018.6185] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 05/01/2018] [Indexed: 01/04/2023] Open
Abstract
Heme oxygenase-1 (HO-1) is an antioxidant and cytoprotective protein, which has been proven to alleviate the proliferation of hepatic stellate cells (HSCs) and the development of liver fibrosis. However, the role of HO-1 in HSC apoptosis remains unclear. The aim of the present study was to investigate the effect of HO-1 on HSC apoptosis and its possible underlying mechanisms. HSCs-T6 were incubated with different concentrations of hemin (HO-1 chemical inducer) and Znpp-IX (HO-1 chemical inhibitor) for 12, 24 and 48 h. Cell viability was determined using an MTT assay. HSCs were classified into 4 groups as follows: Control, hemin, Znpp-IX and hemin+Znpp-IX co-treatment groups. Apoptosis was quantitatively measured by Annexin V/propidium iodide double staining and a terminal deoxynucleotidyl transferase dUTP nick-end labeling assay. The mRNA and protein expression of HO-1, α-smooth muscle actin, B-cell lymphoma (Bcl)-2, caspase-3 and nuclear factor (NF)-κB p65 were measured using quantitative polymerase chain reaction and western blotting. The levels of tumor growth factor (TGF)-β and interleukin (IL)-6 in HSC supernatants were examined by ELISA. The results demonstrated that HO-1 exerted antiproliferative effects on HSCs in a time- and concentration-dependent manner. Increasing HO-1 expression induced HSC apoptosis in vitro as demonstrated by a significant decrease in Bcl-2 and an increase in caspase-3 expression. Additionally, the expression of NF-κB p65 and its downstream inflammatory factors TGF-β and IL-6 in the HO-1 overexpression group was significantly decreased compared with the control group. Therefore, the present study provided evidence that HO-1 serves an anti-fibrosis role in the liver by enhancing HSC apoptosis, which was partially associated with the regulation of NF-κB and its downstream effectors.
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Affiliation(s)
- Hui Yang
- Department of Infectious Diseases, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Bangtao Chen
- Department of Microbiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, P.R. China
| | - Zhongfu Zhao
- Institute of Hepatopathy, Changzhi Medical College, Changzhi, Shanxi 046011, P.R. China
| | - Li Zhang
- Department of Infectious Diseases, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Yun Zhang
- Institute of Hepatopathy, Changzhi Medical College, Changzhi, Shanxi 046011, P.R. China
| | - Jie Chen
- Department of Infectious Diseases, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Xiaoqian Zhang
- Department of Infectious Diseases, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Xiaohua Zhang
- Department of Infectious Diseases, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
| | - Longfeng Zhao
- Department of Infectious Diseases, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
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17
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Pereira MLM, Marinho CRF, Epiphanio S. Could Heme Oxygenase-1 Be a New Target for Therapeutic Intervention in Malaria-Associated Acute Lung Injury/Acute Respiratory Distress Syndrome? Front Cell Infect Microbiol 2018; 8:161. [PMID: 29868517 PMCID: PMC5964746 DOI: 10.3389/fcimb.2018.00161] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 04/26/2018] [Indexed: 01/17/2023] Open
Abstract
Malaria is a serious disease and was responsible for 429,000 deaths in 2015. Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is one of the main clinical complications of severe malaria; it is characterized by a high mortality rate and can even occur after antimalarial treatment when parasitemia is not detected. Rodent models of ALI/ARDS show similar clinical signs as in humans when the rodents are infected with murine Plasmodium. In these models, it was shown that the induction of the enzyme heme oxygenase 1 (HO-1) is protective against severe malaria complications, including cerebral malaria and ALI/ARDS. Increased lung endothelial permeability and upregulation of VEGF and other pro-inflammatory cytokines were found to be associated with malaria-associated ALI/ARDS (MA-ALI/ARDS), and both were reduced after HO-1 induction. Additionally, mice were protected against MA-ALI/ARDS after treatment with carbon monoxide- releasing molecules or with carbon monoxide, which is also released by the HO-1 activity. However, high HO-1 levels in inflammatory cells were associated with the respiratory burst of neutrophils and with an intensification of inflammation during episodes of severe malaria in humans. Here, we review the main aspects of HO-1 in malaria and ALI/ARDS, presenting the dual role of HO-1 and possibilities for therapeutic intervention by modulating this important enzyme.
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Affiliation(s)
- Marcelo L M Pereira
- Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Claudio R F Marinho
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Sabrina Epiphanio
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, Brazil
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18
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Weng P, Zhang XT, Sheng Q, Tian WF, Chen JL, Yuan JJ, Zhang JR, Pang QF. Caveolin-1 scaffolding domain peptides enhance anti-inflammatory effect of heme oxygenase-1 through interrupting its interact with caveolin-1. Oncotarget 2018; 8:40104-40114. [PMID: 28402952 PMCID: PMC5522314 DOI: 10.18632/oncotarget.16676] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 03/19/2017] [Indexed: 12/22/2022] Open
Abstract
Caveolin-1(Cav-1) scaffolding domain (CSD) peptides compete with the plasma membrane Cav-1, inhibit the interaction of the proteins and Cav-1, and re-store the functions of Cav-1 binding proteins. Heme oxygenase-1 (HO-1) binds to Cav-1 and its enzymatic activity was inhibited. In this study, we investigated the effect of CSD peptides on interaction between HO-1 and Cav-1, and on the HO-1 activity in vitro and in vivo. Our data showed that CSD peptides decreased the compartmentalization of HO-1 and Cav-1, and increased the HO-1 activity both in LPS-treated alveolar macrophages and in mice. Meanwhile, CSD peptides obviously ameliorated the pathology changes in mice and lowered the following injury indexes: the wet/dry ratio of lung tissues, total cell numbers in bronchoalveolar lavage fluid and lactate dehydrogenase activity in the serum. Mechanistically, it was firstly found that CSD peptides promoted alveolar macrophages polarization to M2 phenotype and inhibited the IκB degeneration. Furthermore, CSD peptides down-regulated the expression of IL-1β, IL-6, TNF-α, MCP-1, and iNOS in alveolar macrophages and in lung tissue. However, the protective role of CSD peptides on LPS-induced acute lung injury in mice could be abolished by zinc protoporphyrin IX (ZnPP, a HO-1 activity inhibitor). In summary, CSD peptides have beneficial anti-inflammatory effects by restoring the HO-1 activity suppressed by Cav-1 on plasma membrane.
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Affiliation(s)
- Ping Weng
- Wuxi Medical School, Jiangnan University, Wuxi, China
| | | | - Qiong Sheng
- Wuxi Medical School, Jiangnan University, Wuxi, China
| | - Wen-Fang Tian
- Wuxi Medical School, Jiangnan University, Wuxi, China
| | | | - Jia-Jia Yuan
- Wuxi Medical School, Jiangnan University, Wuxi, China
| | - Ji-Ru Zhang
- Department of Anesthesiology, the Affiliated Hospital of Jiangnan University, Wuxi, China
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Candida albicans β-Glucan-Containing Particles Increase HO-1 Expression in Oral Keratinocytes via a Reactive Oxygen Species/p38 Mitogen-Activated Protein Kinase/Nrf2 Pathway. Infect Immun 2018; 86:IAI.00575-17. [PMID: 29311246 DOI: 10.1128/iai.00575-17] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 01/02/2018] [Indexed: 12/20/2022] Open
Abstract
Oral keratinocytes provide the first line of host defense against oral candidiasis. We speculated that interactions of fungal cell wall components with oral keratinocytes regulate the stress response against Candida infection and examined the expression of genes induced by heat-killed Candida albicans in oral immortalized keratinocytes using a cDNA microarray technique. Of 24,000 genes revealed by that analysis, we focused on HO-1, a stress-inducible gene, as its expression was increased by both heat-killed and live C. albicans In histological findings, HO-1 expression in the superficial layers of the oral epithelium following Candida infection was elevated compared to that in healthy epithelium. We then investigated fungal cell wall components involved in induction of HO-1 expression and found that β-glucan-containing particles (β-GPs) increased its expression. Furthermore, β-glucan was observed on the surface of both heat-killed C. albicans and Candida cells that had invaded the oral epithelium. Fungal β-GPs also promoted induction of intracellular reactive oxygen species (ROS), NADPH oxidase activation, and p38 mitogen-activated protein kinase (MAPK) phosphorylation, while those specific inhibitors inhibited the HO-1 expression induced by fungal β-GPs. Moreover, fungal β-GPs induced Nrf2 translocation into nuclei via p38 MAPK signaling, while the HO-1 expression induced by fungal β-GPs was inhibited by Nrf2-specific small interfering RNA (siRNA). Finally, knockdown of cells by HO-1- and Nrf2-specific siRNAs resulted in increased β-GP-mediated ROS production compared to that in the control cells. Our results show that the HO-1 induced by fungal β-GPs via ROS/p38 MAPK/Nrf2 from oral keratinocytes may have important roles in host defense against the stress caused by Candida infection in the oral epithelium.
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20
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The macrophage heme-heme oxygenase-1 system and its role in inflammation. Biochem Pharmacol 2018; 153:159-167. [PMID: 29452096 DOI: 10.1016/j.bcp.2018.02.010] [Citation(s) in RCA: 165] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 02/12/2018] [Indexed: 02/07/2023]
Abstract
Heme oxygenase (HO)-1, the inducible isoform of the heme-degrading enzyme HO, plays a critical role in inflammation and iron homeostasis. Regulatory functions of HO-1 are mediated via the catalytic breakdown of heme, which is an iron-containing tetrapyrrole complex with potential pro-oxidant and pro-inflammatory effects. In addition, the HO reaction produces the antioxidant and anti-inflammatory compounds carbon monoxide (CO) and biliverdin, subsequently converted into bilirubin, along with iron, which is reutilized for erythropoiesis. HO-1 is up-regulated by a plethora of stimuli and injuries in most cell types and tissues and provides salutary effects by restoring physiological homeostasis. Notably, HO-1 exhibits critical immuno-modulatory functions in macrophages, which are a major cell population of the mononuclear phagocyte system. Macrophages play key roles as sentinels and regulators of the immune system and HO-1 in these cells appears to be of critical importance for driving resolution of inflammatory responses. In this review, the complex functions and regulatory mechanisms of HO-1 in macrophages will be high-lighted. A particular focus will be the intricate interactions of HO-1 with its substrate heme, which play a contradictory role in distinct physiological and pathophysiological settings. The therapeutic potential of targeted modulation of the macrophage heme-HO-1 system will be discussed in the context of inflammatory disorders.
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Müllebner A, Dorighello GG, Kozlov AV, Duvigneau JC. Interaction between Mitochondrial Reactive Oxygen Species, Heme Oxygenase, and Nitric Oxide Synthase Stimulates Phagocytosis in Macrophages. Front Med (Lausanne) 2018; 4:252. [PMID: 29404326 PMCID: PMC5786743 DOI: 10.3389/fmed.2017.00252] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 12/19/2017] [Indexed: 11/13/2022] Open
Abstract
Background Macrophages are cells of the innate immune system that populate every organ. They are required not only for defense against invading pathogens and tissue repair but also for maintenance of tissue homeostasis and iron homeostasis. Aim The aim of this study is to understand whether heme oxygenase (HO) and nitric oxide synthase (NOS) contribute to the regulation of nicotinamide adenine dinucleotide phosphate oxidase (NOX) activity and phagocytosis, two key components of macrophage function. Methods This study was carried out using resting J774A.1 macrophages treated with hemin or vehicle. Activity of NOS, HO, or NOX was inhibited using specific inhibitors. Reactive oxygen species (ROS) formation was determined by Amplex® red assay, and phagocytosis was measured using fluorescein isothiocyanate-labeled bacteria. In addition, we analyzed the fate of the intracellular heme by using electron spin resonance. Results We show that both enzymes NOS and HO are essential for phagocytic activity of macrophages. NOS does not directly affect phagocytosis, but stimulates NOX activity via nitric oxide-triggered ROS production of mitochondria. Treatment of macrophages with hemin results in intracellular accumulation of ferrous heme and an inhibition of phagocytosis. In contrast to NOS, HO products, including carbon monoxide, neither clearly affect NOX activity nor clearly affect phagocytosis, but phagocytosis is accelerated by HO-mediated degradation of heme. Conclusion Both enzymes contribute to the bactericidal activity of macrophages independently, by controlling different pathways.
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Affiliation(s)
- Andrea Müllebner
- Institute for Medical Biochemistry, University of Veterinary Medicine Vienna, Vienna, Austria.,Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
| | - Gabriel G Dorighello
- Department of Structural and Functional Biology, Biology Institute, University of Campinas, Campinas, Brazil
| | - Andrey V Kozlov
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
| | - J Catharina Duvigneau
- Institute for Medical Biochemistry, University of Veterinary Medicine Vienna, Vienna, Austria
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22
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Zhang ZH, Zhu W, Ren HZ, Zhao X, Wang S, Ma HC, Shi XL. Mesenchymal stem cells increase expression of heme oxygenase-1 leading to anti-inflammatory activity in treatment of acute liver failure. Stem Cell Res Ther 2017; 8:70. [PMID: 28320485 PMCID: PMC5359839 DOI: 10.1186/s13287-017-0524-3] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Revised: 01/07/2017] [Accepted: 02/25/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) have been studied for the treatment of acute liver failure (ALF) for several years. MSCs may exert their effect via complex paracrine mechanisms. Heme oxygenase (HO) 1, a rate-limiting enzyme in heme metabolism, exerts a wide range of anti-inflammatory, anti-apoptotic and immunoregulatory effects in a variety of diseases. However, the relationship between MSCs and HO-1 in the treatment of ALF is still unclear. We investigated the preventive and therapeutic potential of intravenously administered BMSCs. METHODS Bone marrow-derived mesenchymal stem cells (BMSCs) obtained from Sprague-Dawley rats were isolated and cultured. We employed BMSCs, hemin (a HO-1 inducer) and zinc protoporphyrin (ZnPP, the HO-1 activity inhibitor) in D-galactosamine (D-Gal)/lipopolysaccharides (LPS)-induced ALF rats. Rats were sacrificed at days 1, 3, 5, and 7 post-transfusion, respectively. Blood samples and liver tissues were collected. Hepatic injury, HO-1 activity, chemokines, inflammatory cytokines, the number and oxidative activity of neutrophils, ki67, and TUNEL-positive cells were evaluated. RESULTS HO-1 induction or BMSCs transplantation attenuated D-galactosamine/lipopolysaccharide-induced increases in alanine aminotransferase, aspartate aminotransferase, total bilirubin (TBIL), ammonia, and inflammatory cytokines. Treatment with hemin or BMSCs also inhibited neutrophil infiltration, oxidative activity, and hepatocyte apoptosis. The protective effect of BMSCs was partially neutralized by ZnPP, suggesting the key role of HO-1 in the process. CONCLUSIONS These findings may correlate with inhibition of nuclear factor-κ B activation. BMSCs ameliorated ALF by increasing the HO-1 expression, which reduced PMN infiltration and function, and played an important anti-inflammatory and anti-apoptotic role. Proposed mechanism by which BMSCs reduce inflammation, neutrophil activation, and hepatocyte apoptosis and promote hepatocyte proliferation via HO-1. BMSCs increase HO-1 expression in liver via Nrf2. HO-1 protects against LPS/D-Gal-induced ALF by inhibiting neutrophil infiltration and inflammatory burst, and hepatocyte apoptosis and necrosis. HO-1 also promotes hepatocyte proliferation.
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Affiliation(s)
- Zhi-Heng Zhang
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Wei Zhu
- Department of Anesthesiology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Hao-Zhen Ren
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Xin Zhao
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Shuai Wang
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.,Department of Hepatobiliary Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Hu-Cheng Ma
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Xiao-Lei Shi
- Department of Hepatobiliary Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.
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Artesunate Protects Against Sepsis-Induced Lung Injury Via Heme Oxygenase-1 Modulation. Inflammation 2017; 39:651-62. [PMID: 26627481 DOI: 10.1007/s10753-015-0290-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Artesunate, a derivative of artemisinin, has anti-inflammatory properties and exerts protective roles in sepsis. Heme oxygense-1 (HO-1) inhibits the inflammatory response through reduction of proinflammatory cytokines and leukocyte influx into tissues. The present study investigated the effects of artesunate on HO-1 and septic lung injury. Cecal ligation and puncture (CLP) was employed to induce septic lung injury. Mice pretreated with artesunate (AS) (15 mg/kg) exhibited decreased sepsis-induced mortality and lung injury and alleviated lung pathological changes and neutrophil infiltration. In addition, AS lowered the levels of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in the serum and bronchoalveolar lavage fluid (BALF) and inhibited cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase isoform (iNOS) expression and NF-κB activation in lung tissue. In addition, AS enhanced NF-E2-related factor-2 (Nrf2) activation and HO-1 expression and enzymatic activity in lung tissue. However, the protective effects of AS on sepsis-induced lung injury were eliminated by ZnPP IX, an HO-1 competitive inhibitor. Therefore, AS plays protective roles in septic lung injury related to the upregulation of HO-1. These findings suggest an effective and applicable treatment to sepsis-induced lung injury and provide new insights into the molecular mechanisms and actions of AS.
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Lee JW, Park JW, Shin NR, Park SY, Kwon OK, Park HA, Lim Y, Ryu HW, Yuk HJ, Kim JH, Oh SR, Ahn KS. Picrasma quassiodes (D. Don) Benn. attenuates lipopolysaccharide (LPS)-induced acute lung injury. Int J Mol Med 2016; 38:834-44. [PMID: 27431288 DOI: 10.3892/ijmm.2016.2669] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 06/15/2016] [Indexed: 12/28/2022] Open
Abstract
Picrasma quassiodes (D.Don) Benn. (PQ) is a medicinal herb belonging to the family Simaroubaceae and is used as a traditional herbal remedy for various diseases. In this study, we evaluated the effects of PQ on airway inflammation using a mouse model of lipopolysaccharide (LPS)-induced acute lung injury (ALI) and LPS-stimulated raw 264.7 cells. ALI was induced in C57BL/6 mice by the intranasal administration of LPS, and PQ was administered orally 3 days prior to exposure to LPS. Treatment with PQ significantly attenuated the infiltration of inflammatory cells in the bronchoalveolar lavage fluid (BALF). PQ also decreased the production of reactive oxygen species (ROS) and pro-inflammatory cytokines, such as tumor necrosis factor (TNF)-α and interleukin (IL)-6 in BALF. In addition, PQ inhibited airway inflammation by reducing the expression of inducible nitric oxide synthase (iNOS) and by increasing the expression of heme oxygenase-1 (HO-1) in the lungs. Furthermore, we demonstrated that PQ blocked the activation of mitogen-activated protein kinase (MAPK) and nuclear factor-κB (NF-κB) in the lungs of mice with LPS-induced ALI. In the LPS-stimulated RAW 264.7 cells, PQ inhibited the release of pro-inflammatory cytokines and increased the mRNA expression of monocyte chemoattractant protein-1 (MCP-1). Treatment with PQ decreased the translocation of nuclear factor (NF)-κB to the nucleus, and increased the nuclear translocation of nuclear factor erythroid-2-related factor 2 (Nrf2) and the expression of HO-1. PQ also inhibited the activation of p38 in the LPS-stimulated RAW 264.7 cells. Taken together, our findings demonstrate that PQ exerts anti-inflammatory effects against LPS-induced ALI, and that these effects are associated with the modulation of iNOS, HO-1, NF-κB and MAPK signaling. Therefore, we suggest that PQ has therapeutic potential for use in the treatment of ALI.
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Affiliation(s)
- Jae-Won Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju-si, Chungbuk 363‑883, Republic of Korea
| | - Ji-Won Park
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju-si, Chungbuk 363‑883, Republic of Korea
| | - Na-Rae Shin
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju-si, Chungbuk 363‑883, Republic of Korea
| | - So-Yeon Park
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju-si, Chungbuk 363‑883, Republic of Korea
| | - Ok-Kyoung Kwon
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju-si, Chungbuk 363‑883, Republic of Korea
| | - Hyun Ah Park
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju-si, Chungbuk 363‑883, Republic of Korea
| | - Yourim Lim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju-si, Chungbuk 363‑883, Republic of Korea
| | - Hyung Won Ryu
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju-si, Chungbuk 363‑883, Republic of Korea
| | - Heung Joo Yuk
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju-si, Chungbuk 363‑883, Republic of Korea
| | - Jung Hee Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju-si, Chungbuk 363‑883, Republic of Korea
| | - Sei-Ryang Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju-si, Chungbuk 363‑883, Republic of Korea
| | - Kyung-Seop Ahn
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungju-si, Chungbuk 363‑883, Republic of Korea
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Shaver CM, Upchurch CP, Janz DR, Grove BS, Putz ND, Wickersham NE, Dikalov SI, Ware LB, Bastarache JA. Cell-free hemoglobin: a novel mediator of acute lung injury. Am J Physiol Lung Cell Mol Physiol 2016; 310:L532-41. [PMID: 26773065 PMCID: PMC4796260 DOI: 10.1152/ajplung.00155.2015] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 01/14/2016] [Indexed: 01/01/2023] Open
Abstract
Patients with the acute respiratory distress syndrome (ARDS) have elevated levels of cell-free hemoglobin (CFH) in the air space, but the contribution of CFH to the pathogenesis of acute lung injury is unknown. In the present study, we demonstrate that levels of CFH in the air space correlate with measures of alveolar-capillary barrier dysfunction in humans with ARDS (r = 0.89, P < 0.001) and in mice with ventilator-induced acute lung injury (r = 0.89, P < 0.001). To investigate the specific contribution of CFH to ARDS, we studied the impact of purified CFH in the mouse lung and on cultured mouse lung epithelial (MLE-12) cells. Intratracheal delivery of CFH in mice causes acute lung injury with air space inflammation and alveolar-capillary barrier disruption. Similarly, in MLE-12 cells, CFH increases proinflammatory cytokine expression and increases paracellular permeability as measured by electrical cell-substrate impedance sensing. Next, to determine whether these effects are mediated by the iron-containing heme moiety of CFH, we treated mice with intratracheal hemin, the chloride salt of heme, and found that hemin was sufficient to increase alveolar permeability but failed to induce proinflammatory cytokine expression or epithelial cell injury. Together, these data identify CFH in the air space as a previously unrecognized driver of lung epithelial injury in human and experimental ARDS and suggest that CFH and hemin may contribute to ARDS through different mechanisms. Interventions targeting CFH and heme in the air space could provide a new therapeutic approach for ARDS.
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Affiliation(s)
- Ciara M Shaver
- Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Cameron P Upchurch
- Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - David R Janz
- Section of Pulmonary and Critical Care Medicine, Louisiana State University School of Medicine, New Orleans, Louisiana
| | - Brandon S Grove
- Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Nathan D Putz
- Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Nancy E Wickersham
- Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Sergey I Dikalov
- Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee; and
| | - Lorraine B Ware
- Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee; Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Julie A Bastarache
- Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee;
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Li L, Tang J, Sun Y, Wu J, Yu P, Wang G. Upregulation of HO-1 Attenuates LPS-Stimulated Proinflammatory Responses Through Downregulation of p38 Signaling Pathways in Rat Ovary. Inflammation 2016; 38:1085-92. [PMID: 25448262 DOI: 10.1007/s10753-014-0074-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Heme oxygenase-1 (HO-1) plays a key role in the regulation of the inflammatory response. However, the specific mechanism underlying the anti-inflammatory role of HO-1 in the reproductive system is unclear. The aim of this study was to evaluate the role of the mechanism of HO-1 in the regulation of the inflammatory response stimulated by lipopolysaccharide (LPS) in rat ovary. LPS-stimulated inflammatory models were established. Rats were pretreated with HO-1 activator (hemin) or inhibitor (ZnPP) before LPS stimulation, and we evaluated the expression of HO-1 by real-time PCR and Western blot. The messenger RNA (mRNA) expression and secretion of IL-1β and IL-6 in rat ovary were analyzed using real-time PCR and ELISA. In addition, we also analyzed the p38 and p-p38 protein expression in the ovary. Our results demonstrate that HO-1 is an anti-inflammatory factor in LPS-stimulated ovary, which regulates the inflammatory response through downregulation of p38 signaling pathways in rat ovary.
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Affiliation(s)
- Lian Li
- College of Animal Science and Technology, Nanjing Agricultural University, 210095, Nanjing, People's Republic of China,
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5-Aminolevulinic acid regulates the inflammatory response and alloimmune reaction. Int Immunopharmacol 2015; 37:71-78. [PMID: 26643355 DOI: 10.1016/j.intimp.2015.11.034] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 11/25/2015] [Accepted: 11/26/2015] [Indexed: 12/15/2022]
Abstract
5-Aminolevulinic acid (5-ALA) is a naturally occurring amino acid and precursor of heme and protoporphyrin IX (PpIX). Exogenously administrated 5-ALA increases the accumulation of PpIX in tumor cells specifically due to the compromised metabolism of 5-ALA to heme in mitochondria. PpIX emits red fluorescence by the irradiation of blue light and the formation of reactive oxygen species and singlet oxygen. Thus, performing a photodynamic diagnosis (PDD) and photodynamic therapy (PDT) using 5-ALA have given rise to a new strategy for tumor diagnosis and therapy. In addition to the field of tumor therapy, 5-ALA has been implicated in the treatment of inflammatory disease, autoimmune disease and transplantation due to the anti-inflammation and immunoregulation properties that are elicited with the expression of heme oxygenase (HO)-1, an inducible enzyme that catalyzes the rate-limiting step in the oxidative degradation of heme to free iron, biliverdin and carbon monoxide (CO), in combination with sodium ferrous citrate (SFC), because an inhibitor of HO-1 abolishes the effects of 5-ALA. Furthermore, NF-E2-related factor 2 (Nrf2), mitogen-activated protein kinase (MAPK), and heme are involved in the HO-1 expression. Biliverdin and CO are also known to have anti-apoptotic, anti-inflammatory and immunoregulatory functions. We herein review the current use of 5-ALA in inflammatory diseases, transplantation medicine, and tumor therapy.
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Tang J, Li L, Li CM, Wu J, Sun Y, Wang GL. Upregulation of HO-1 with Haemin Alleviates LPS-Stimulated Pro-inflammatory Responses Through Downregulation of p38 Signalling Pathways in Rat Liver. Scand J Immunol 2015; 82:443-51. [DOI: 10.1111/sji.12352] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 08/10/2015] [Indexed: 12/21/2022]
Affiliation(s)
- J. Tang
- College of Animal Science and Technology; Nanjing Agricultural University; Nanjing China
| | - L. Li
- College of Animal Science and Technology; Nanjing Agricultural University; Nanjing China
| | - C.-M. Li
- College of Animal Science and Technology; Nanjing Agricultural University; Nanjing China
| | - J. Wu
- College of Animal Science and Technology; Nanjing Agricultural University; Nanjing China
| | - Y. Sun
- College of Animal Science and Technology; Nanjing Agricultural University; Nanjing China
| | - G.-L. Wang
- College of Animal Science and Technology; Nanjing Agricultural University; Nanjing China
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Fernandez-Bustamante A, Agazio A, Wilson P, Elkins N, Domaleski L, He Q, Baer KA, Moss AFD, Wischmeyer PE, Repine JE. Brief Glutamine Pretreatment Increases Alveolar Macrophage CD163/Heme Oxygenase-1/p38-MAPK Dephosphorylation Pathway and Decreases Capillary Damage but Not Neutrophil Recruitment in IL-1/LPS-Insufflated Rats. PLoS One 2015; 10:e0130764. [PMID: 26147379 PMCID: PMC4493112 DOI: 10.1371/journal.pone.0130764] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 05/23/2015] [Indexed: 02/06/2023] Open
Abstract
Background Glutamine (GLN) attenuates acute lung injury (ALI) but its effect on alveolar macrophages is unknown. We hypothesized that GLN pretreatment would induce the anti-inflammatory CD163/heme oxygenase (HO)-1/p38-MAPK dephosphorylation pathway in alveolar macrophages and reduce ALI in rats insufflated with interleukin-1 (IL-1) and lipopolysaccharide (LPS). Methods Male Sprague-Dawley rats were randomized to the following groups: GLN-IL-1/LPS-, GLN+IL-1/LPS-, GLN-IL-1/LPS+, and GLN+IL-1/LPS+. GLN pretreatment was given via gavage (1g/kg L-alanyl-L-glutamine) daily for 2 days. ALI was subsequently induced by insufflating 50ng IL-1 followed by 5mg/kg E.coli LPS. After 24h, bronchoalveolar lavage (BAL) protein, lactate dehydrogenase (LDH) and neutrophil concentrations were analyzed. BAL alveolar macrophage CD163+ expression, HO-1 and p38-MAPK concentrations were measured, as well as alveolar macrophage tumor necrosis factor (TNF)-α and interleukin (IL)-10 concentrations. Histology and immunofluorescence studies were also performed. Results Following IL-1/LPS insufflation, GLN pretreated rats had significantly decreased BAL protein and LDH concentrations, but not BAL neutrophil counts, compared to non-GLN pretreated rats. The number of alveolar macrophages and the number of CD163+ macrophages were significantly increased in GLN pretreated IL-1/LPS-insufflated rats compared to non-GLN pretreated, IL-1/LPS-insufflated rats. GLN pretreatment before IL-1/LPS also significantly increased HO-1 concentrations and dephosphorylated p38-MAPK levels but not cytokine levels in alveolar macrophages. Immunofluorescence localized CD163 and HO-1 in alveolar macrophages. Conclusion Short-term GLN pretreatment activates the anti-inflammatory CD163/HO-1/p38-MAPK dephosphorylation pathway of alveolar macrophages and decreases capillary damage but not neutrophil recruitment in IL-1/LPS-insufflated rats.
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Affiliation(s)
- Ana Fernandez-Bustamante
- Department of Anesthesiology, University of Colorado SOM, Aurora, Colorado, United States of America; Webb-Waring Center, University of Colorado SOM, Aurora, Colorado, United States of America
| | - Amanda Agazio
- Department of Anesthesiology, University of Colorado SOM, Aurora, Colorado, United States of America; Webb-Waring Center, University of Colorado SOM, Aurora, Colorado, United States of America
| | - Paul Wilson
- Webb-Waring Center, University of Colorado SOM, Aurora, Colorado, United States of America
| | - Nancy Elkins
- Webb-Waring Center, University of Colorado SOM, Aurora, Colorado, United States of America
| | - Luke Domaleski
- Webb-Waring Center, University of Colorado SOM, Aurora, Colorado, United States of America
| | - Qianbin He
- Department of Anesthesiology, University of Colorado SOM, Aurora, Colorado, United States of America; Webb-Waring Center, University of Colorado SOM, Aurora, Colorado, United States of America
| | - Kaily A Baer
- Webb-Waring Center, University of Colorado SOM, Aurora, Colorado, United States of America
| | - Angela F D Moss
- Adult and Child Center for Health Outcomes and Delivery Science (ACCORDS), University of Colorado SOM, Aurora, Colorado, United States of America
| | - Paul E Wischmeyer
- Department of Anesthesiology, University of Colorado SOM, Aurora, Colorado, United States of America
| | - John E Repine
- Department of Medicine, University of Colorado SOM, Aurora, Colorado, United States of America; Webb-Waring Center, University of Colorado SOM, Aurora, Colorado, United States of America
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Elevation of HO-1 Expression Mitigates Intestinal Ischemia-Reperfusion Injury and Restores Tight Junction Function in a Rat Liver Transplantation Model. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:986075. [PMID: 26064429 PMCID: PMC4441991 DOI: 10.1155/2015/986075] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2015] [Accepted: 04/26/2015] [Indexed: 12/17/2022]
Abstract
Aims. This study was aimed at investigating whether elevation of heme oxygenase-1 (HO-1) expression could lead to restoring intestinal tight junction (TJ) function in a rat liver transplantation model. Methods. Intestinal mucosa injury was induced by orthotopic autologous liver transplantation (OALT) on male Sprague-Dawley rats. Hemin (a potent HO-1 activator) and zinc-protoporphyrin (ZnPP, a HO-1 competitive inhibitor), were separately administered in selected groups before OALT. The serum and intestinal mucosa samples were collected at 8 hours after the operation for analysis. Results. Hemin pretreatment significantly reduced the inflammation and oxidative stress in the mucosal tissue after OALT by elevating HO-1 protein expression, while ZnPP pretreatment aggravated the OALT mucosa injury. Meanwhile, the restriction on the expression of tight junction proteins zonula occludens-1 and occludin was removed after hemin pretreatment. These molecular events led to significant improvement on intestinal barrier function, which was proved to be through increasing nuclear translocation of nuclear factor-E2-related factor 2 (Nrf2) and reducing nuclear translocation of nuclear factor kappa-B (NF-κB) in intestinal injured mucosa. Summary. Our study demonstrated that elevation of HO-1 expression reduced the OALT-induced intestinal mucosa injury and TJ dysfunction. The HO-1 protective function was likely mediated through its effects of anti-inflammation and antioxidative stress.
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Meng A, Wang B, Zhang X, Qi N, Liu D, Wu J. Additive Suppression of LPS-Induced IL-10 and TNF-α by Pre-treatment of Dexamethasone and SB203580 in a Murine Alveolar Macrophage Cell Line (MH-S). Inflammation 2015; 38:1260-6. [DOI: 10.1007/s10753-014-0093-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Duan Y, Chen F, Zhang A, Zhu B, Sun J, Xie Q, Chen Z. Aspirin inhibits lipopolysaccharide-induced COX-2 expression and PGE2 production in porcine alveolar macrophages by modulating protein kinase C and protein tyrosine phosphatase activity. BMB Rep 2014; 47:45-50. [PMID: 24209633 PMCID: PMC4163845 DOI: 10.5483/bmbrep.2014.47.1.089] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 05/06/2013] [Accepted: 06/03/2013] [Indexed: 11/20/2022] Open
Abstract
Aspirin has been demonstrated to be effective in inhibiting COX-2 and PGE(2) in Alveolar macrophages (AMs). However, the mechanisms have not been fully understood. In the present study, we found that pretreatment with aspirin inhibited LPS-induced COX-2 and PGE(2) upregulation, IκBα degradation, NFκB activation and the increase of PKC activity, but elevated LPS-induced the decrease of PTP activity. The PKC inhibitor calphostin C dramatically reduced the COX-2 mRNA and PGE(2) levels, but the PTP inhibitor peroxovanadium (POV) significantly increased the COX-2 mRNA and PGE(2) levels. Furthermore, the PTP inhibitor mitigated the inhibitory effect of aspirin on COX-2 and PGE(2) upregulation and NF-κB activation, whereas the PKC inhibitor enhanced the inhibitory effects of aspirin on the production of COX-2 and PGE(2). Our data indicate a novel mechanism by which aspirin acts as a potent anti-inflammatory agent in alveolus macrophages and ALI.
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Affiliation(s)
- Yuzhong Duan
- Cancer Institute of PLA, Xinqiao Hospital, Third Military Medical University, Chongqing 40037, China
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Zhang L, Zhang Y, Zhong W, Di C, Lin X, Xia Z. Heme oxygenase-1 ameliorates dextran sulfate sodium-induced acute murine colitis by regulating Th17/Treg cell balance. J Biol Chem 2014; 289:26847-26858. [PMID: 25112868 DOI: 10.1074/jbc.m114.590554] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Inflammatory bowel disease (IBD), including ulcerative colitis and Crohn's disease, is a group of autoimmune diseases characterized by nonspecific inflammation in the gastrointestinal tract. Recent investigations suggest that activation of Th17 cells and/or deficiency of regulatory T cells (Treg) is involved in the pathogenesis of IBD. Heme oxygenase (HO)-1 is a protein with a wide range of anti-inflammatory and immune regulatory function, which exerts significantly protective roles in various T cell-mediated diseases. In this study, we aim to explore the immunological regulation of HO-1 in the dextran sulfate sodium-induced model of experimental murine colitis. BALB/c mice were administered 4% dextran sulfate sodium orally; some mice were intraperitoneally pretreated with HO-1 inducer hemin or HO-1 inhibitor stannum protoporphyrin IX. The results show that hemin enhances the colonic expression of HO-1 and significantly ameliorates the symptoms of colitis with improved histological changes, accompanied by a decreased proportion of Th17 cells and increased number of Tregs in mesenteric lymph node and spleen. Moreover, induction of HO-1 down-regulates retinoic acid-related orphan receptor γt expression and IL-17A levels, while promoting Treg-related forkhead box p3 (Foxp3) expression and IL-10 levels in colon. Further study in vitro revealed that up-regulated HO-1 switched the naive T cells to Tregs when cultured under a Th17-inducing environment, which involved in IL-6R blockade. Therefore, HO-1 may exhibit anti-inflammatory activity in the murine model of acute experimental colitis via regulating the balance between Th17 and Treg cells, thus providing a possible novel therapeutic target in IBD.
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Affiliation(s)
- Liya Zhang
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China and
| | - Yanjie Zhang
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China and
| | - Wenwei Zhong
- Department of Pediatrics, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, 1678 Dongfang Road, Shanghai 200127, China
| | - Caixia Di
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China and
| | - Xiaoliang Lin
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China and
| | - Zhenwei Xia
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China and.
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Al-Huseini LMA, Aw Yeang HX, Hamdam JM, Sethu S, Alhumeed N, Wong W, Sathish JG. Heme oxygenase-1 regulates dendritic cell function through modulation of p38 MAPK-CREB/ATF1 signaling. J Biol Chem 2014; 289:16442-51. [PMID: 24719331 PMCID: PMC4047411 DOI: 10.1074/jbc.m113.532069] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Dendritic cells (DCs) are critical for the initiation of immune responses including activation of CD8 T cells. Intracellular reactive oxygen species (ROS) levels influence DC maturation and function. Intracellular heme, a product of catabolism of heme-containing metalloproteins, is a key inducer of ROS. Intracellular heme levels are regulated by heme oxygenase-1 (HO-1), which catalyzes the degradation of heme. Heme oxygenase-1 has been implicated in regulating DC maturation; however, its role in other DC functions is unclear. Furthermore, the signaling pathways modulated by HO-1 in DCs are unknown. In this study, we demonstrate that inhibition of HO-1 activity in murine bone marrow-derived immature DCs (iDCs) resulted in DCs with raised intracellular ROS levels, a mature phenotype, impaired phagocytic and endocytic function, and increased capacity to stimulate antigen-specific CD8 T cells. Interestingly, our results reveal that the increased ROS levels following HO-1 inhibition did not underlie the changes in phenotype and functions observed in these iDCs. Importantly, we show that the p38 mitogen-activated protein kinase (p38 MAPK), cAMP-responsive element binding protein (CREB), and activating transcription factor 1 (ATF1) pathway is involved in the mediation of the phenotypic and functional changes arising from HO-1 inhibition. Furthermore, up-regulation of HO-1 activity rendered iDCs refractory to lipopolysaccharide-induced activation of p38 MAPK-CREB/ATF1 pathway and DC maturation. Finally, we demonstrate that treatment of iDC with the HO-1 substrate, heme, recapitulates the effects that result from HO-1 inhibition. Based on these results, we conclude that HO-1 regulates DC maturation and function by modulating the p38 MAPK-CREB/ATF1 signaling axis.
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Affiliation(s)
- Laith M A Al-Huseini
- From the Medical Research Council (MRC) Centre for Drug Safety Science and Department of Molecular and Clinical Pharmacology, Sherrington Buildings, Ashton Street, University of Liverpool, Liverpool L69 3GE, United Kingdom and the Department of Pharmacology and Therapeutics, College of Medicine, Al-Qadisiyah University, P. O. Box 80, Diwaniyah 58001, Iraq
| | - Han Xian Aw Yeang
- From the Medical Research Council (MRC) Centre for Drug Safety Science and Department of Molecular and Clinical Pharmacology, Sherrington Buildings, Ashton Street, University of Liverpool, Liverpool L69 3GE, United Kingdom and
| | - Junnat M Hamdam
- From the Medical Research Council (MRC) Centre for Drug Safety Science and Department of Molecular and Clinical Pharmacology, Sherrington Buildings, Ashton Street, University of Liverpool, Liverpool L69 3GE, United Kingdom and
| | - Swaminathan Sethu
- From the Medical Research Council (MRC) Centre for Drug Safety Science and Department of Molecular and Clinical Pharmacology, Sherrington Buildings, Ashton Street, University of Liverpool, Liverpool L69 3GE, United Kingdom and
| | - Naif Alhumeed
- From the Medical Research Council (MRC) Centre for Drug Safety Science and Department of Molecular and Clinical Pharmacology, Sherrington Buildings, Ashton Street, University of Liverpool, Liverpool L69 3GE, United Kingdom and
| | - Wai Wong
- From the Medical Research Council (MRC) Centre for Drug Safety Science and Department of Molecular and Clinical Pharmacology, Sherrington Buildings, Ashton Street, University of Liverpool, Liverpool L69 3GE, United Kingdom and
| | - Jean G Sathish
- From the Medical Research Council (MRC) Centre for Drug Safety Science and Department of Molecular and Clinical Pharmacology, Sherrington Buildings, Ashton Street, University of Liverpool, Liverpool L69 3GE, United Kingdom and
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35
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Nishio Y, Fujino M, Zhao M, Ishii T, Ishizuka M, Ito H, Takahashi K, Abe F, Nakajima M, Tanaka T, Taketani S, Nagahara Y, Li XK. 5-Aminolevulinic acid combined with ferrous iron enhances the expression of heme oxygenase-1. Int Immunopharmacol 2014; 19:300-7. [PMID: 24530569 DOI: 10.1016/j.intimp.2014.02.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2013] [Revised: 02/01/2014] [Accepted: 02/03/2014] [Indexed: 02/08/2023]
Abstract
5-Aminolevulinic acid (5-ALA) is the naturally occurring metabolic precursor of heme. Heme negatively regulates the Maf recognition element (MARE) binding- and repressing-activity of the Bach1 transcription factor through its direct binding to Bach1. Heme oxygenase (HO)-1 is an inducible enzyme that catalyzes the rate-limiting step in the oxidative degradation of heme to free iron, biliverdin and carbon monoxide. These metabolites of heme protect against apoptosis, inflammation and oxidative stress. Monocytes and macrophages play a critical role in the initiation, maintenance and resolution of inflammation. Therefore, the regulation of inflammation in macrophages is an important target under various pathophysiological conditions. In order to address the question of what is responsible for the anti-inflammatory effects of 5-ALA, the induction of HO-1 expression by 5-ALA and sodium ferrous citrate (SFC) was examined in macrophage cell line (RAW264 cells). HO-1 expression induced by 5-ALA combined with SFC (5-ALA/SFC) was partially inhibited by MEK/ERK and p38 MAPK inhibitor. The NF-E2-related factor 2 (Nrf2) was activated and translocated from the cytosol to the nucleus in response to 5-ALA/SFC. Nrf2-specific siRNA reduced the HO-1 expression. In addition, 5-ALA/SFC increased the intracellular levels of heme in cells. The increased heme indicated that the inactivation of Bach1 by heme supports the upregulation of HO-1 expression. Taken together, our data suggest that the exposure of 5-ALA/SFC to RAW264 cells enhances the HO-1 expression via MAPK activation along with the negative regulation of Bach1.
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Affiliation(s)
- Yoshiaki Nishio
- Division of Transplantation Immunology, National Research Institute for Child Health and Development, Tokyo, Japan; Department of Biomedical Sciences, Tokyo Denki University, Saitama, Japan
| | - Masayuki Fujino
- Division of Transplantation Immunology, National Research Institute for Child Health and Development, Tokyo, Japan; AIDS Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Mingyi Zhao
- Division of Transplantation Immunology, National Research Institute for Child Health and Development, Tokyo, Japan
| | | | | | | | | | | | | | | | - Shigeru Taketani
- Department of Biotechnology, Kyoto Institute of Technology, Kyoto, Japan
| | - Yukitoshi Nagahara
- Department of Biomedical Sciences, Tokyo Denki University, Saitama, Japan.
| | - Xiao-Kang Li
- Division of Transplantation Immunology, National Research Institute for Child Health and Development, Tokyo, Japan.
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36
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Kang CH, Choi YH, Moon SK, Kim WJ, Kim GY. Quercetin inhibits lipopolysaccharide-induced nitric oxide production in BV2 microglial cells by suppressing the NF-κB pathway and activating the Nrf2-dependent HO-1 pathway. Int Immunopharmacol 2013; 17:808-13. [DOI: 10.1016/j.intimp.2013.09.009] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 09/13/2013] [Accepted: 09/13/2013] [Indexed: 12/22/2022]
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37
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Gutierrez FRS, Pavanelli WR, Medina TS, Silva GK, Mariano FS, Guedes PMM, Mineo TWP, Rossi MA, Cunha FQ, Silva JS. Haeme oxygenase activity protects the host against excessive cardiac inflammation during experimental Trypanosoma cruzi infection. Microbes Infect 2013; 16:28-39. [PMID: 24140555 DOI: 10.1016/j.micinf.2013.10.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 08/25/2013] [Accepted: 10/04/2013] [Indexed: 01/07/2023]
Abstract
The infection with Trypanosoma cruzi induces a robust cardiac inflammation that plays a pathogenic role in the development of Chagas heart disease. In this study, we aimed at investigating the effects of Haem Oxygenase (HO) during experimental infection by T. cruzi in BALB/c and C57BL/6 mice. HO has recently emerged as a key factor modulating the immune response in diverse models of inflammatory diseases. In mice with two different genetic backgrounds, the pharmacologic inhibition of HO activity with zinc-protoporphyrin IX (ZnPPIX) induced enhanced myocarditis and reduced parasitaemia, which was accompanied by an amplified production of nitric oxide and increased influx of CD4(+), CD8(+) and IFN-γ(+) cells to the myocardium in comparison with the control group. Conversely, treatment with haemin (an activator of HO) lead to a decreased number of intracardiac CD4(+) (but not CD8(+)) cells compared to the control group. The mechanism involved in these observations is a modulation of the induction of regulatory T cells, because the stimulation or inhibition of HO was parallelled by an enhanced or reduced frequency of regulatory T cells, respectively. Hence, HO may be involved in the regulation of heart tissue inflammation and could be a potential target in conceiving future therapeutic approaches for Chagas disease.
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Affiliation(s)
- Fredy R S Gutierrez
- Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia.
| | - Wander R Pavanelli
- Centro de Ciências Biológicas, Departamento de Ciências Patológicas, Universidade Estadual de Londrina, Brazil; Department of Biochemistry-Immunology, Ribeirão Preto School of Medicine, University of São Paulo, Brazil
| | - Tiago S Medina
- Department of Biochemistry-Immunology, Ribeirão Preto School of Medicine, University of São Paulo, Brazil
| | - Grace K Silva
- Department of Biochemistry-Immunology, Ribeirão Preto School of Medicine, University of São Paulo, Brazil
| | - Flávia S Mariano
- Department of Biochemistry-Immunology, Ribeirão Preto School of Medicine, University of São Paulo, Brazil
| | - Paulo M M Guedes
- Departamento de Microbiologia e Parasitologia, Universidade Federal do Rio Grande do Norte, Natal, Brazil; Department of Biochemistry-Immunology, Ribeirão Preto School of Medicine, University of São Paulo, Brazil
| | - Tiago W P Mineo
- Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Brazil; Department of Biochemistry-Immunology, Ribeirão Preto School of Medicine, University of São Paulo, Brazil
| | - Marcos A Rossi
- Department of Pathology, Ribeirão Preto School of Medicine, University of São Paulo, Brazil
| | - Fernando Q Cunha
- Department of Pharmacology, Ribeirão Preto School of Medicine, University of São Paulo, Brazil
| | - João S Silva
- Department of Biochemistry-Immunology, Ribeirão Preto School of Medicine, University of São Paulo, Brazil
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38
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Zhang Y, Zhang L, Wu J, Di C, Xia Z. Heme oxygenase-1 exerts a protective role in ovalbumin-induced neutrophilic airway inflammation by inhibiting Th17 cell-mediated immune response. J Biol Chem 2013; 288:34612-26. [PMID: 24097973 DOI: 10.1074/jbc.m113.494369] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Allergic asthma is conventionally considered as a Th2 immune response characterized by eosinophilic inflammation. Recent investigations revealed that Th17 cells play an important role in the pathogenesis of non-eosinophilic asthma (NEA), resulting in steroid-resistant neutrophilic airway inflammation. Heme oxygenase-1 (HO-1) has anti-inflammation, anti-oxidation, and anti-apoptosis functions. However, its role in NEA is still unclear. Here, we explore the role of HO-1 in a mouse model of NEA. HO-1 inducer hemin or HO-1 inhibitor tin protoporphyrin IX was injected intraperitoneally into ovalbumin-challenged DO11.10 mice. Small interfering RNA (siRNA) was delivered into mice to knock down HO-1 expression. The results show that induction of HO-1 by hemin attenuated airway inflammation and decreased neutrophil infiltration in bronchial alveolar lavage fluid and was accompanied by a lower proportion of Th17 cells in mediastinal lymph nodes and spleen. More importantly, induction of HO-1 down-regulated Th17-related transcription factor retinoic acid-related orphan receptor γt (RORγt) expression and decreased IL-17A levels, all of which correlated with a decrease in phosphorylated STAT3 (p-STAT3) level and inhibition of Th17 cell differentiation. Consistently, the above events could be reversed by tin protoporphyrin IX. Also, HO-1 siRNA transfection abolished the effect of hemin induced HO-1 in vivo. Meanwhile, the hemin treatment promoted the level of Foxp3 expression and enhanced the proportion of regulatory T cells (Tregs). Collectively, our findings indicate that HO-1 exhibits anti-inflammatory activity in the mouse model of NEA via inhibition of the p-STAT3-RORγt pathway, regulating kinetics of RORγt and Foxp3 expression, thus providing a possible novel therapeutic target in asthmatic patients.
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Affiliation(s)
- Yanjie Zhang
- From the Department of Pediatrics, Ruijin Hospital Affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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39
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Zhai Z, Gomez-Mejiba SE, Ramirez DC. The nitrone spin trap 5,5-dimethyl-1-pyrroline N-oxide affects stress response and fate of lipopolysaccharide-primed RAW 264.7 macrophage cells. Inflammation 2013; 36:346-54. [PMID: 23053730 DOI: 10.1007/s10753-012-9552-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The nitrone spin trap 5,5-dimethyl-1-pyrroline N-oxide (DMPO) is commonly used to study free radicals. Due to its free radical trapping properties, DMPO is thought to reduce free radial-mediated oxidative damage and other related cellular responses. The purpose of this study was to assess the effect of DMPO on lipopolysaccharide (LPS)-induced inflammation, endoplasmic reticulum (ER) stress, and apoptosis in RAW 264.7 cells. The results showed that DMPO at 50 mM inhibited inducible nitric oxide synthase expression when added shortly after LPS treatment (≤3 h). Interestingly, DMPO increased anti-inflammatory heme oxygenase-1 (HO-1) expression and reversed LPS-induced decrease in HO-1 expression. LPS could increase cellular ER stress as indicated by C/EBP homologous protein (CHOP) induction; DMPO reduced LPS effect on CHOP expression. Unexpectedly, DMPO had a synergistic effect with LPS on increased caspase-3 activity. Overall, DMPO harbors multiple modulating effects but may induce apoptosis in LPS-stressed cells when given at 50 mM, an effective dose for its anti-inflammatory activity in vitro. Our data provide clues for further understanding of the nitrone spin trap with therapeutic potential.
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Affiliation(s)
- Zili Zhai
- Department of Medicine, Section of Gastroenterology, The University of Chicago, Chicago, IL 60637, USA.
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40
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Yoriki H, Naito Y, Takagi T, Mizusima K, Hirai Y, Harusato A, Yamada S, Tsuji T, Kugai M, Fukui A, Higashimura Y, Katada K, Kamada K, Uchiyama K, Handa O, Yagi N, Ichikawa H, Yosikawa T. Hemin ameliorates indomethacin-induced small intestinal injury in mice through the induction of heme oxygenase-1. J Gastroenterol Hepatol 2013; 28:632-8. [PMID: 23216607 DOI: 10.1111/jgh.12074] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/31/2012] [Indexed: 12/09/2022]
Abstract
BACKGROUND AND AIM Although non-steroidal anti-inflammatory drugs can induce intestinal injury, the mechanisms are not fully understood, and treatment has yet to be established. Heme oxygenase-1 (HO-1) has recently gained attention for anti-inflammatory and cytoprotective effects. This study aimed to investigate the effects of hemin, an HO-1 inducer, on indomethacin-induced enteritis in mice. METHODS Enteritis was induced by single subcutaneous administration of indomethacin (10 mg/kg) in male C57BL/6 mice. Hemin (30 mg/kg) was administered by intraperitoneal administration 6 h before indomethacin administration. Mice were randomly divided into four groups: (i) sham + vehicle; (ii) sham + hemin; (iii) indomethacin + vehicle; or (iv) indomethacin + hemin. Enteritis was evaluated by measuring ulcerative lesions. Myeloperoxidase activity was measured as an index of neutrophil accumulation. The mRNA expression of inflammatory cytokines and chemokines, such as tumor necrosis factor-α, monocyte chemoattractant protein-1, macrophage inflammatory protein-1α, and keratinocyte chemoattractant, were analyzed by real-time polymerase chain reaction. RESULTS The area of ulcerative lesions, myeloperoxidase activity, and mRNA expression of inflammatory cytokines and chemokines were significantly increased in mice administrated with indomethacin compared with vehicle-treated sham mice. Development of intestinal lesions, increased levels of myeloperoxidase activities, and mRNA expressions of inflammatory cytokines and chemokines were significantly suppressed in mice treated with hemin compared with vehicle-treated mice. Protective effects of hemin were reversed by co-administration of tin protoporphyrin, an HO-1 inhibitor. CONCLUSIONS Induction of HO-1 by hemin inhibits indomethacin-induced intestinal injury through upregulation of HO-1. Pharmacological induction of HO-1 may offer a novel therapeutic strategy to prevent indomethacin-induced small intestinal injury.
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Affiliation(s)
- Hiroyuki Yoriki
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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