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Dirim AB, Kalayci T, Safak S, Garayeva N, Gultekin B, Hurdogan O, Solakoglu S, Yazici H, Cefle K, Ozturk S, Yildiz A. Heme oxygenase-1 deficiency as an extremely rare cause of AA-type renal amyloidosis: Expanding the clinical features and review of the literature. Clin Rheumatol 2023; 42:597-606. [PMID: 36502441 DOI: 10.1007/s10067-022-06465-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/18/2022] [Accepted: 11/29/2022] [Indexed: 12/14/2022]
Abstract
Heme oxygenase-1 (HMOX-1) is an enzyme that regulates heme degradation. Antiinflammatory, antioxidant, and cytoprotective effects of HMOX-1 were also described. It is encoded by the HMOX1 gene, and biallelic mutations cause HMOX-1 deficiency, which is a rare chronic multisystemic inflammatory disorder. This inflammatory status could lead to the development of secondary AA-type amyloidosis theoretically. Here, we report a 30-year-old male with AA-type renal amyloidosis due to a chronic inflammatory condition of unknown origin. Paternal consanguinity and dysmorphic features raised suspicion of a rare genetic disorder. Clinical exome sequencing (CES) confirmed the HMOX-1 deficiency diagnosis related to homozygous missense G139V mutation. To the best of our knowledge, our patient is the eleventh HMOX-1 deficiency case in the literature. Also, HMOX-1 deficiency-related systemic AA-type amyloidosis has not been reported before.
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Affiliation(s)
- Ahmet Burak Dirim
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Capa, Fatih, 34093, Istanbul, Turkey.
| | - Tugba Kalayci
- Division of Medical Genetics, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Seda Safak
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Capa, Fatih, 34093, Istanbul, Turkey
| | - Nurane Garayeva
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Capa, Fatih, 34093, Istanbul, Turkey
| | - Burak Gultekin
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Capa, Fatih, 34093, Istanbul, Turkey
| | - Ozge Hurdogan
- Department of Pathology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Seyhun Solakoglu
- Department of Histology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Halil Yazici
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Capa, Fatih, 34093, Istanbul, Turkey
| | - Kivanc Cefle
- Division of Medical Genetics, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Sukru Ozturk
- Division of Medical Genetics, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Alaattin Yildiz
- Division of Nephrology, Department of Internal Medicine, Istanbul Faculty of Medicine, Istanbul University, Capa, Fatih, 34093, Istanbul, Turkey
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Silva RCMC, Vasconcelos LR, Travassos LH. The different facets of heme-oxygenase 1 in innate and adaptive immunity. Cell Biochem Biophys 2022; 80:609-631. [PMID: 36018440 DOI: 10.1007/s12013-022-01087-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 07/20/2022] [Indexed: 11/26/2022]
Abstract
Heme oxygenase (HO) enzymes are responsible for the main oxidative step in heme degradation, generating equimolar amounts of free iron, biliverdin and carbon monoxide. HO-1 is induced as a crucial stress response protein, playing protective roles in physiologic and pathological conditions, due to its antioxidant, anti-apoptotic and anti-inflammatory effects. The mechanisms behind HO-1-mediated protection are being explored by different studies, affecting cell fate through multiple ways, such as reduction in intracellular levels of heme and ROS, transcriptional regulation, and through its byproducts generation. In this review we focus on the interplay between HO-1 and immune-related signaling pathways, which culminate in the activation of transcription factors important in immune responses and inflammation. We also discuss the dual interaction of HO-1 and inflammatory mediators that govern resolution and tissue damage. We highlight the dichotomy of HO-1 in innate and adaptive immune cells development and activation in different disease contexts. Finally, we address different known anti-inflammatory pharmaceuticals that are now being described to modulate HO-1, and the possible contribution of HO-1 in their anti-inflammatory effects.
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Affiliation(s)
- Rafael Cardoso Maciel Costa Silva
- Laboratory of Immunoreceptors and Signaling, Instituto de Biofísica Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Luiz Ricardo Vasconcelos
- Cellular Signaling and Cytoskeletal Function Laboratory, The Francis Crick Institute, London, UK
| | - Leonardo Holanda Travassos
- Laboratory of Immunoreceptors and Signaling, Instituto de Biofísica Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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3
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Prolyl Hydroxylase Inhibition Mitigates Allograft Injury During Liver Transplantation. Transplantation 2022; 106:e430-e440. [PMID: 35849574 DOI: 10.1097/tp.0000000000004258] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Ischemia and reperfusion injury (IRI) determines primary allograft function after liver transplantation (LT). Primary graft dysfunction (PGD) is associated with increased morbidity and impaired graft survival and can eventually progress to graft failure requiring retransplantation. Hypoxia-inducible transcription factor-prolyl hydroxylase containing enzymes (PHD1, PHD2, and PHD3) are molecular oxygen sensors, which control the adaptive hypoxia response through the hypoxia-inducible factor (HIF). In this study, we have investigated pharmacological activation of the HIF pathway through inhibition of PHDs as a strategy to reduce PGD after LT. METHODS Primary rat hepatocytes were isolated and the impact of the pan-PHD small-molecule inhibitor ethyl-3,4-dihydroxybenzoate (EDHB) on HIF-1 and its downstream target gene expression assessed. Subsequently, various rodent models of segmental warm liver ischemia and reperfusion and orthotopic LT were applied to study the impact of EDHB on normothermic or combined cold and warm liver IRI. Liver enzyme levels and histology were analyzed to quantify hepatic IRI. RESULTS In vitro, EDHB induced HIF-1 signaling and significantly upregulated its downstream target heme-oxygenase 1 in primary rat hepatocytes. In vivo, after establishment of the optimal EDHB pretreatment conditions in a murine IRI model, EDHB pretreatment significantly mitigated hepatic IRI after warm segmental liver ischemia and reperfusion and allograft injury after orthotopic LT in rats. Mechanistically, EDHB stabilized HIF-1 in the liver and subsequently increased hepatoprotective heme-oxygenase 1 levels, which correlated with reduced hepatic IRI in these models. CONCLUSIONS This proof-of-concept study establishes a strong therapeutic rationale for targeting PHDs with small-molecule inhibitors to mitigate PGD after LT.
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Chen Y, Li T, Tan P, Shi H, Cheng Y, Cai T, Bai J, Du Y, Fu W. Kaempferol From Penthorum chinense Pursh Attenuates Hepatic Ischemia/Reperfusion Injury by Suppressing Oxidative Stress and Inflammation Through Activation of the Nrf2/HO-1 Signaling Pathway. Front Pharmacol 2022; 13:857015. [PMID: 35431932 PMCID: PMC9011142 DOI: 10.3389/fphar.2022.857015] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 03/07/2022] [Indexed: 12/30/2022] Open
Abstract
The purpose of this study is to investigate the protective effect of kaempferol (KAE), the main active monomer from Penthorum chinense Pursh, on hepatic ischemia/reperfusion injury (HI/RI) and its specific mechanism. HI/RI is a common complication closely related to the prognosis of liver surgery, and effective prevention and treatment methods are still unavailable. Ischemia/reperfusion (I/R) injury is caused by tissue damage during ischemia and sustained oxidative stress and inflammation during reperfusion. Penthorum chinense Pursh is a traditional Chinese medicine widely used to treat liver disease since ancient times. Kaempferol (KAE), a highly purified flavonoid active monomer isolated and extracted from Penthorum chinense Pursh, was investigated for its protective effect on HI/RI. Our study indicates that KAE pretreatment alleviated I/R-induced transaminase elevation and pathological changes. Further analysis revealed that KAE pretreatment attenuates I/R-induced oxidative stress (as measured by the content of MDA, SOD and GSH) in vivo and reduces hypoxia/reoxygenation (H/R) -induced reactive oxygen species (ROS) generation in vitro. Meanwhile, KAE inhibits activation of NF-κB/p65 and reduces the release of pro-inflammatory factors (TNF-α and IL-6) to protect the liver from I/R-induced inflammation. Nuclear erythroid 2-related factor 2 (Nrf2) is a crucial cytoprotection regulator because it induces anti-inflammatory, antioxidant, and cytoprotective genes. Therefore, we analyzed the protein levels of Nrf2 and its downstream heme oxygenase-1 (HO-1) in the liver of mice and hepatocytes of humankind, respectively, and discovered that KAE pretreatment activates the Nrf2/HO-1 signaling pathway. In summary, this study confirmed the hepatoprotective effect of KAE on HI/RI, which inhibits oxidative stress and inflammation by activating the Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- Yifan Chen
- Department of General Surgery (Hepatopancreatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Tongxi Li
- Department of General Surgery (Hepatopancreatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Peng Tan
- Academician (Expert) Workstation of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Hao Shi
- Department of General Surgery (Hepatopancreatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yonglang Cheng
- Department of General Surgery (Hepatopancreatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Tianying Cai
- Department of General Surgery (Hepatopancreatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Junjie Bai
- Department of General Surgery (Hepatopancreatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yichao Du
- Academician (Expert) Workstation of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- *Correspondence: Yichao Du, ; Wenguang Fu,
| | - Wenguang Fu
- Department of General Surgery (Hepatopancreatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Academician (Expert) Workstation of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- *Correspondence: Yichao Du, ; Wenguang Fu,
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Li Y, Ma K, Han Z, Chi M, Sai X, Zhu P, Ding Z, Song L, Liu C. Immunomodulatory Effects of Heme Oxygenase-1 in Kidney Disease. Front Med (Lausanne) 2021; 8:708453. [PMID: 34504854 PMCID: PMC8421649 DOI: 10.3389/fmed.2021.708453] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 07/31/2021] [Indexed: 01/23/2023] Open
Abstract
Kidney disease is a general term for heterogeneous damage that affects the function and the structure of the kidneys. The rising incidence of kidney diseases represents a considerable burden on the healthcare system, so the development of new drugs and the identification of novel therapeutic targets are urgently needed. The pathophysiology of kidney diseases is complex and involves multiple processes, including inflammation, autophagy, cell-cycle progression, and oxidative stress. Heme oxygenase-1 (HO-1), an enzyme involved in the process of heme degradation, has attracted widespread attention in recent years due to its cytoprotective properties. As an enzyme with known anti-oxidative functions, HO-1 plays an indispensable role in the regulation of oxidative stress and is involved in the pathogenesis of several kidney diseases. Moreover, current studies have revealed that HO-1 can affect cell proliferation, cell maturation, and other metabolic processes, thereby altering the function of immune cells. Many strategies, such as the administration of HO-1-overexpressing macrophages, use of phytochemicals, and carbon monoxide-based therapies, have been developed to target HO-1 in a variety of nephropathological animal models, indicating that HO-1 is a promising protein for the treatment of kidney diseases. Here, we briefly review the effects of HO-1 induction on specific immune cell populations with the aim of exploring the potential therapeutic roles of HO-1 and designing HO-1-based therapeutic strategies for the treatment of kidney diseases.
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Affiliation(s)
- Yunlong Li
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,School of Medical and Life Sciences, Reproductive and Women-Children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Kuai Ma
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Zhongyu Han
- School of Medical and Life Sciences, Reproductive and Women-Children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mingxuan Chi
- School of Medical and Life Sciences, Reproductive and Women-Children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiyalatu Sai
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Ping Zhu
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zhaolun Ding
- Department of Emergency Surgery, Shannxi Provincial People's Hospital, Xi'an, China
| | - Linjiang Song
- School of Medical and Life Sciences, Reproductive and Women-Children Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Chi Liu
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.,Department of Nephrology, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
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Spilleboudt C, De Wilde V, Lewalle P, Cabanne L, Leclerc M, Beckerich F, Bories D, Cardoso S, Soares MP, Vokaer B, Hougardy JM, Flamand V, Racapé J, Abramowicz M, Maury S, Le Moine A. Donor-Derived Myeloid Heme Oxygenase-1 Controls the Development of Graft-Versus-Host Disease. Front Immunol 2021; 11:579151. [PMID: 33537027 PMCID: PMC7849683 DOI: 10.3389/fimmu.2020.579151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 11/30/2020] [Indexed: 11/13/2022] Open
Abstract
Graft-versus-host disease (GVHD) remains a major clinical drawback of allogeneic hematopoietic stem cell transplantation (HSCT). Here, we investigated how the stress responsive heme catabolizing enzyme heme oxygenase-1 (HO-1, encoded by HMOX1) regulates GVHD in response to allogeneic hematopoietic stem cell transplantation in mice and humans. We found that deletion of the Hmox1 allele, specifically in the myeloid compartment of mouse donor bone marrow, promotes the development of aggressive GVHD after allogeneic transplantation. The mechanism driving GVHD in mice transplanted with allogeneic bone marrow lacking HO-1 expression in the myeloid compartment involves enhanced T cell alloreactivity. The clinical relevance of these observations was validated in two independent cohorts of HSCT patients. Individuals transplanted with hematopoietic stem cells from donors carrying a long homozygous (GT)n repeat polymorphism (L/L) in the HMOX1 promoter, which is associated with lower HO-1 expression, were at higher risk of developing severe acute GVHD as compared to donors carrying a short (GT)n repeat (S/L or S/S) polymorphism associated with higher HO-1 expression. In this study, we showed the unique importance of donor-derived myeloid HO-1 in the prevention of lethal experimental GVHD and we corroborated this observation by demonstrating the association between human HMOX1 (GT)n microsatellite polymorphisms and the incidence of severe acute GVHD in two independent HSCT patient cohorts. Donor-derived myeloid HO-1 constitutes a potential therapeutic target for HSCT patients and large-scale prospective studies in HSCT patients are necessary to validate the HO-1 L/L genotype as an independent risk factor for developing severe acute GVHD.
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Affiliation(s)
- Chloé Spilleboudt
- Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
| | - Virginie De Wilde
- Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
- Erasme Hospital, Hematology Department, Université libre de Bruxelles, Brussels, Belgium
| | - Philippe Lewalle
- Jules Bordet Institute, Hematology Department, Université libre de Bruxelles, Brussels, Belgium
| | - Ludovic Cabanne
- AP-HP, Hôpital Henri Mondor, Department of Hematology, Créteil, France
- University Paris Est Créteil (UPEC), Créteil, France
| | - Mathieu Leclerc
- AP-HP, Hôpital Henri Mondor, Department of Hematology, Créteil, France
- University Paris Est Créteil (UPEC), Créteil, France
| | - Florence Beckerich
- AP-HP, Hôpital Henri Mondor, Department of Hematology, Créteil, France
- University Paris Est Créteil (UPEC), Créteil, France
| | - Dominique Bories
- AP-HP, Hôpital Henri Mondor, Department of Hematology, Créteil, France
- University Paris Est Créteil (UPEC), Créteil, France
| | | | | | - Benoît Vokaer
- Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
| | - Jean-Michel Hougardy
- Erasme Hospital, Nephrology and Internal Medicine Department, Université libre de Bruxelles, Brussels, Belgium
| | - Véronique Flamand
- Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
| | - Judith Racapé
- Erasme Hospital, Nephrology and Internal Medicine Department, Université libre de Bruxelles, Brussels, Belgium
- Centre de Recherche Épidémiologie, Biostatistique et Recherche clinique, École de Santé Publique, Université libre de Bruxelles, Brussels, Belgium
| | - Marc Abramowicz
- Department of Genetic Medicine and Development, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Sébastien Maury
- AP-HP, Hôpital Henri Mondor, Department of Hematology, Créteil, France
- University Paris Est Créteil (UPEC), Créteil, France
| | - Alain Le Moine
- Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
- Erasme Hospital, Nephrology and Internal Medicine Department, Université libre de Bruxelles, Brussels, Belgium
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Hu C, Zhao L, Li L. Genetic modification by overexpression of target gene in mesenchymal stromal cell for treating liver diseases. J Mol Med (Berl) 2021; 99:179-192. [PMID: 33388882 DOI: 10.1007/s00109-020-02031-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 11/02/2020] [Accepted: 12/21/2020] [Indexed: 12/31/2022]
Abstract
Different hepatoxic factors cause irreversible liver injury, leading to liver failure, cirrhosis, and cancer in mammals. Liver transplantation is the only effective strategy, which can improve the prognosis of patients with end-stage liver diseases, but it is limited by liver donor shortage, expensive costs, liver graft rejection and dysfunction, and recurring liver failure. Recently, mesenchymal stromal cells (MSCs) isolated from various tissues are regarded as the main stem cell type with therapeutic effects in liver diseases because of their hepatogenic differentiation, anti-inflammatory, immuoregulatory, anti-apoptotic, antifibrotic, and antitumor capacities. To further improve the therapeutic effects of MSCs, multiple studies showed that genetically engineered MSCs have increased regenerative capacities and are able to more effectively inhibit cell death. Moreover, they are able to secrete therapeutic proteins for attenuating liver injury in liver diseases. In this review, we mainly focus on gene overexpression for reprogramming MSCs to increase their therapeutic effects in treating various liver diseases. We described the potential mechanisms of MSCs with gene overexpression in attenuating liver injury, and we recommend further expansion of experiments to discover more gene targets and optimized gene delivery methods for MSC-based regenerative medicine. We also discussed the potential hurdles in genetic engineering MSCs. In conclusion, we highlight that we need to overcome all scientific hurdles before genetically modified MSC therapy can be translated into clinical practices for patients with liver diseases.
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Affiliation(s)
- Chenxia Hu
- Collaborative Innovation Center for the Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Lingfei Zhao
- Key Laboratory of Kidney Disease Prevention and Control Technology, Kidney Disease Center, Institute of Nephrology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
| | - Lanjuan Li
- Collaborative Innovation Center for the Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China. .,National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China.
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8
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Sugiyama T, Matsushima M, Ohdachi T, Hashimoto N, Hasegawa Y, Yokoi K, Kawabe T. Involvement of heme oxygenase-1 in suppression of T cell activation by quercetin. Immunopharmacol Immunotoxicol 2020; 42:295-305. [PMID: 32397768 DOI: 10.1080/08923973.2020.1759623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
AIM Acute rejection is still a major problem in transplantation and one of the most important causes of late graft loss. Cyclosporine and tacrolimus are widely used for suppression of T cell function to avoid graft rejection, but long-term use of these compounds is associated with serious toxicities. Quercetin, a flavonoid found in fruits and vegetables, has been demonstrated to exhibit cytoprotective effects through the induction of heme oxygenase (HO) -1, an enzyme involved in heme catabolism. We hypothesized that quercetin induces HO-1 in T cells and suppresses T cell function via HO-1. In the present study, we showed that quercetin suppressed the A23187-mediated expression of interleukin (IL) -2 in T cells. METHODS Mouse splenocytes, enriched T cells, and EL4 cells, a mouse T cell line, were treated with quercetin, and then stimulated with A23187, a calcium ionophore, concanavalin A, or anti-CD3ε and anti-CD28 antibodies. Cell proliferation, expression of IL-2, calcium mobilization, apoptosis, cell cycle, and phosphorylation of extracellular signal-regulated kinase (ERK) were investigated. RESULTS Quercetin induced HO-1, and this induction of HO-1 was implicated in the suppression of IL-2 production. Furthermore, the induction of HO-1 by quercetin suppressed the influx of calcium ions, a known trigger of IL-2 production. Additionally, quercetin suppressed T cell proliferation through promotion of cell cycle arrest via HO-1 induction, but quercetin did not induce apoptosis. To investigate the role of the signal transduction pathway in quercetin's effect on cell proliferation, we evaluated the phosphorylation of ERK in T cells. Quercetin suppressed the A23187-mediated stimulation of ERK, an effect that was mediated through HO-1. These results suggested that HO-1 is involved in the suppressive effects of quercetin on T cell activation and proliferation. CONCLUSION Our findings indicate that the quercetin may be a promising candidate for inducing HO-1 in T cells, thereby facilitating immunosuppressive effects.
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Affiliation(s)
- Tomoshi Sugiyama
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Miyoko Matsushima
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoko Ohdachi
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshinori Hasegawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kohei Yokoi
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tsutomu Kawabe
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
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9
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Siddiq M, Wang F, Xiao M, Lin XJ, Fatima N, Iqbal S, Iqbal U, Piao XH, Liu L. Inhibition of lipopolysaccharide-induced inflammation via the protective role of T regulatory cells in the fetal liver in a late-pregnancy preterm mouse model. Clinics (Sao Paulo) 2020; 75:e1665. [PMID: 33206750 PMCID: PMC7603294 DOI: 10.6061/clinics/2020/e1665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 03/26/2020] [Indexed: 12/05/2022] Open
Abstract
OBJECTIVES This study intended to explore the effect of T regulatory cells (Tregs) in the perinatal liver against LPS-induced inflammation in a preterm birth mouse model. Moreover, the role of adoptive Tregs on the inflammatory response induced by LPS was also studied. METHODS Female BALB/C mice were injected intraperitoneally (IP) with LPS dissolved in normal saline solution at a dose of 50 µg/kg. Spleens from pregnant mice were used to obtain Tregs. The expression of Forkhead family transcription factor-3 (Foxp3), Interleukin-6 (IL-6), Toll-like receptor-4 (TLR-4), and Heme oxygenase-1 (HO-1) were assessed from fetal liver tissues by polymerase chain reaction and western blotting. RESULTS LPS administered to mice induced an inflammatory response in the perinatal liver, and this inflammatory response was negatively regulated by Tregs in the experimental group. Maternal-fetal tolerance was maintained by Tregs. Transmission of Tregs was estimated in different experimental groups based on the mRNA expression of TLR-4, IL-6, HO-1, and Foxp3. CONCLUSIONS After analysis of the experimental data, it was determined that Tregs exhibited regulatory potential against LPS-induced inflammatory response. Further, it was concluded that the transmission of Tregs improved the mother's immune tolerance against LPS-induced inflammation in the fetal liver.
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Affiliation(s)
- Muhammad Siddiq
- Department of Neonatology, The First Affiliated Hospital of Xi’an Jiaotong University College of Medicine, Xi’an, Shaanxi, China
| | - Fan Wang
- Department of Neonatology, The First Affiliated Hospital of Xi’an Jiaotong University College of Medicine, Xi’an, Shaanxi, China
| | - Mi Xiao
- Department of Neonatology, The First Affiliated Hospital of Xi’an Jiaotong University College of Medicine, Xi’an, Shaanxi, China
| | - Xiao Jie Lin
- Department of Neonatology, The First Affiliated Hospital of Xi’an Jiaotong University College of Medicine, Xi’an, Shaanxi, China
| | - Nazira Fatima
- Department of Biotechnology, Mirpur University of Science & Technology Pakistan, Pakistan and Laboratory Animal Center Xian Jiaotong University Health Science Centre, Xian Shaanxi, China
| | - Sara Iqbal
- Akhtar Saeed Medical & Dental College, Akhtar Saeed Trust Hospital & Farooq Hospital Lahore, Akhtar Saeed Medical & Dental CollegeAkhtar Saeed Trust Hospital & Farooq Hospital LahorePakistanPakistan
| | - Umar Iqbal
- Akhtar Saeed Medical & Dental College, Akhtar Saeed Trust Hospital & Farooq Hospital Lahore, Akhtar Saeed Medical & Dental CollegeAkhtar Saeed Trust Hospital & Farooq Hospital LahorePakistanPakistan
| | - Xian-Hua Piao
- The Division of Newborn Medicine, Boston Children’s Hospital of Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Li Liu
- Department of Neonatology, The First Affiliated Hospital of Xi’an Jiaotong University College of Medicine, Xi’an, Shaanxi, China
- *Corresponding authors. E-mail:
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10
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Wu ZF, Lin WL, Lee MS, Hung NK, Huang YS, Chen TW, Lu CH. Propofol vs desflurane on the cytokine, matrix metalloproteinase-9, and heme oxygenase-1 response during living donor liver transplantation: A pilot study. Medicine (Baltimore) 2019; 98:e18244. [PMID: 31770287 PMCID: PMC6890360 DOI: 10.1097/md.0000000000018244] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND We investigated the effects of propofol vs desflurane on ischemia and reperfusion injury (IRI)-induced inflammatory responses, especially in matrix metalloproteinase-9 (MMP-9) downregulation and heme oxygenase-1 (HO-1) upregulation, which may result in different clinical outcomes in liver transplant recipients. METHODS Fifty liver transplant recipients were randomized to receive propofol-based total intravenous anesthesia (TIVA group, n = 25) or desflurane anesthesia (DES group, n = 25). We then measured the following: perioperative serum cytokine concentrations (interleukin 1 receptor antagonist [IL-1RA], IL-6, IL-8, and IL-10); MMP-9 and HO-1 mRNA expression levels at predefined intervals. Further, postoperative outcomes were compared between the 2 groups. RESULTS The TIVA group showed a significant HO-1 level increase following the anhepatic phase and a significant MMP-9 reduction after reperfusion, in addition to a significant increase in IL-10 levels after the anhepatic phase and IL-1RA levels after reperfusion. Compared to DES patients, TIVA patients showed a faster return of the international normalized ratio to normal values, lower plasma alanine aminotransferase concentrations 24 hours after transplantation, and fewer patients developing acute lung injury. Moreover, compared with DES patients, TIVA patients showed a significant reduction in serum blood lactate levels. However, there were no differences in postoperative outcomes between the two groups. CONCLUSION Propofol-based TIVA attenuated inflammatory response (elevated IL-1RA and IL-10 levels), downregulated MMP-9 response, and increased HO-1 expression with improved recovery of graft function and better microcirculation compared with desflurane anesthesia in liver transplant recipients.
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Affiliation(s)
- Zhi-Fu Wu
- Department of Anesthesiology, Chi Mei Medical Center, Tainan
- Department of Anesthesiology, National Defense Medical Center and Tri-Service General Hospital
| | - Wei-Lin Lin
- Department of Anesthesiology, National Defense Medical Center and Tri-Service General Hospital
| | | | - Nan-Kai Hung
- Department of Anesthesiology, National Defense Medical Center and Tri-Service General Hospital
| | - Yuan-Shiou Huang
- Department of Anesthesiology, National Defense Medical Center and Tri-Service General Hospital
| | - Teng-Wei Chen
- Division of General Surgery, National Defense Medical Center and Tri-Service General Hospital, Taipei, Taiwan
| | - Chueng-He Lu
- Department of Anesthesiology, National Defense Medical Center and Tri-Service General Hospital
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11
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Yan SC, Wang YJ, Li YJ, Cai WY, Weng XG, Li Q, Chen Y, Yang Q, Zhu XX. Dihydroartemisinin Regulates the Th/Treg Balance by Inducing Activated CD4+ T cell Apoptosis via Heme Oxygenase-1 Induction in Mouse Models of Inflammatory Bowel Disease. Molecules 2019; 24:molecules24132475. [PMID: 31284478 PMCID: PMC6651826 DOI: 10.3390/molecules24132475] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/19/2019] [Accepted: 07/04/2019] [Indexed: 12/13/2022] Open
Abstract
Dihydroartemisinin (DHA) is a derivative of the herb Artemisia annua L. that has prominent immunomodulatory activity; however, its underlying mechanism remains elusive. Inflammatory bowel disease (IBD) is an idiopathic inflammatory condition characterized as an autoimmune disorder that includes dysfunctions in the T helper (Th)/T regulatory cell (Treg) balance, which normally plays pivotal roles in immune homeostasis. The aim of this study was to explore the potential of DHA to ameliorate IBD by restoring the Th/Treg cell balance. To this end, we established mouse models of colitis induced by oxazolone (OXA) and 2,4,6-trinitro-benzene sulfonic acid (TNBS). We then treated mice with DHA at 4, 8, or 16 mg/kg/day. DHA treatment ameliorated colitis signs and reduced lymphocyte infiltration and tissue fibrosis. Moreover, DHA decreased the numbers of Th1 and Th17 cells and Th9 and Th22 cells in TNBS- or OXA-induced colitis, respectively, and increased Tregs in both models. DHA (0.8 mg/mL) also inhibited activated CD4+ T lymphocytes, which was accompanied by apoptosis induction. Moreover, it promoted heme oxygenase-1 (HO-1) production in vitro and in vivo, concomitant with CD4+ T cell apoptosis and restoration of the Th/Treg balance, and these effects were blocked by treatment with the HO-1 inhibitor Sn-protoporphyrin IX. Overall, these results suggest that DHA is a novel and valuable candidate for IBD therapy or Th/Treg immunoregulation.
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Affiliation(s)
- Si Chao Yan
- Artemisinin Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Ya Jie Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yu Jie Li
- Artemisinin Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Wei Yan Cai
- Artemisinin Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Xiao Gang Weng
- Artemisinin Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Qi Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Ying Chen
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Qing Yang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Xiao Xin Zhu
- Artemisinin Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China.
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
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12
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Marek-Trzonkowska N, Piekarska K, Filipowicz N, Piotrowski A, Gucwa M, Vogt K, Sawitzki B, Siebert J, Trzonkowski P. Mild hypothermia provides Treg stability. Sci Rep 2017; 7:11915. [PMID: 28931834 PMCID: PMC5607276 DOI: 10.1038/s41598-017-10151-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 08/04/2017] [Indexed: 12/22/2022] Open
Abstract
Regulatory T cells (Tregs) play crucial role in maintenance of peripheral tolerance. Recent clinical trials confirmed safety and efficacy of Treg treatment of deleterious immune responses. However, Tregs lose their characteristic phenotype and suppressive potential during expansion ex vivo. Therefore, multiple research teams have been studding Treg biology in aim to improve their stability in vitro. In the current paper, we demonstrate that mild hypothermia of 33 °C induces robust proliferation of Tregs, preserves expression of FoxP3, CD25 and Helios, and prevents TSDR methylation during culture in vitro. Tregs expanded at 33 °C have stronger immunosuppressive potential and remarkably anti-inflammatory phenotype demonstrated by the whole transcriptome sequencing. These observations shed new light on impact of temperature on regulation of immune response. We show that just a simple change in temperature can preserve Treg stability, function and accelerate their proliferation, responding to unanswered question- how to preserve Treg stability in vitro.
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Affiliation(s)
- Natalia Marek-Trzonkowska
- Laboratory of Immunoregulation and Cellular Therapies, Department of Family Medicine, Medical University of Gdańsk, ul. Dębinki 2, 80-210, Gdańsk, Poland.
| | - Karolina Piekarska
- Laboratory of Immunoregulation and Cellular Therapies, Department of Family Medicine, Medical University of Gdańsk, ul. Dębinki 2, 80-210, Gdańsk, Poland
| | - Natalia Filipowicz
- Department of Biology and Pharmaceutical Botany, Medical University of Gdańsk, al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland
| | - Arkadiusz Piotrowski
- Department of Biology and Pharmaceutical Botany, Medical University of Gdańsk, al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland
| | - Magdalena Gucwa
- Department of Biology and Pharmaceutical Botany, Medical University of Gdańsk, al. Gen. J. Hallera 107, 80-416, Gdańsk, Poland
| | - Katrin Vogt
- Institute for Medical Immunology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Augustenburgerplatz 1, 13353, Berlin, Germany
| | - Birgit Sawitzki
- Institute for Medical Immunology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Augustenburgerplatz 1, 13353, Berlin, Germany
| | - Janusz Siebert
- Department of Family Medicine, Medical University of Gdańsk, ul. Dębinki 2, 80-210, Gdańsk, Poland
| | - Piotr Trzonkowski
- Department of Clinical Immunology and Transplantology, Medical University of Gdańsk, ul. Dębinki 7, 80-210, Gdańsk, Poland
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13
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Qian Y, Matson JB. Gasotransmitter delivery via self-assembling peptides: Treating diseases with natural signaling gases. Adv Drug Deliv Rev 2017; 110-111:137-156. [PMID: 27374785 DOI: 10.1016/j.addr.2016.06.017] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Revised: 06/16/2016] [Accepted: 06/23/2016] [Indexed: 11/19/2022]
Abstract
Nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S) are powerful signaling molecules that play a variety of roles in mammalian biology. Collectively called gasotransmitters, these gases have wide-ranging therapeutic potential, but their clinical use is limited by their gaseous nature, extensive reactivity, short half-life, and systemic toxicity. Strategies for gasotransmitter delivery with control over the duration and location of release are therefore vital for developing effective therapies. An attractive strategy for gasotransmitter delivery is though injectable or implantable gels, which can ideally deliver their payload over a controllable duration and then degrade into benign metabolites. Self-assembling peptide-based gels are well-suited to this purpose due to their tunable mechanical properties, easy chemical modification, and inherent biodegradability. In this review we illustrate the biological roles of NO, CO, and H2S, discuss their therapeutic potential, and highlight recent efforts toward their controlled delivery with a focus on peptide-based delivery systems.
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Affiliation(s)
- Yun Qian
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, United States
| | - John B Matson
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA 24061, United States.
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14
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Ghadban T, Miro JT, Trump F, Tsui TY, Uzunoglu FG, Reeh M, Gebauer F, Bachmann K, Wellner U, Kalinin V, Pantel K, Izbicki JR, Vashist YK. Diverse prognostic value of the GTn promoter polymorphism in squamous cell and adeno carcinoma of the oesophagus. Clin Genet 2016; 90:343-50. [PMID: 26916598 DOI: 10.1111/cge.12765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Revised: 02/05/2016] [Accepted: 02/22/2016] [Indexed: 11/28/2022]
Abstract
The basal transcription of heme oxygenase-1 (HO-1) regulation is dependent upon a GT repeat germ line polymorphism (GTn) in the promoter of the HO-1 gene. We determined the prognostic value of HO-1 promoter polymorphism on the natural postoperative course of complete resected oesophageal cancer. Genomic DNA from 297 patients was amplified by polymerase chain reaction and sequenced. The results were correlated with clinicopathological parameters, disseminated tumour cells in bone marrow (DTC) and clinical outcome. Depending on short allele with <25 and long allele with ≥25, GTn repeats three genotypes (SS, SL and LL) were defined. A diverse role of GTn was evident in squamous cell carcinoma (SCC) and adenocarcinoma (AC). In SCC, the SS genotype presented less advanced tumours with lower rate DTC in bone marrow and relapse compared with L-allele carriers. In contrast, AC patients with the SS genotype displayed a complete opposing tumour characteristic. The disease-free (DFS) and overall survival (OS) in SCC patients was markedly reduced in LL genotypes (p < 0.001). In AC contrarily the SS genotype patients displayed the worst DFS and OS (p < 0.001). GTn is a strong prognostic factor with diverse prognostic value for recurrence and survival in AC and SCC.
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Affiliation(s)
- T Ghadban
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - J T Miro
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - F Trump
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - T Y Tsui
- Department of Surgery, University Medical College Rostock, Rostock, Germany
| | - F G Uzunoglu
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - M Reeh
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - F Gebauer
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - K Bachmann
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - U Wellner
- Clinic for Surgery, University Clinic of Schleswig-Holstein, Campus Luebeck, Luebeck, Germany
| | - V Kalinin
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - K Pantel
- Department of Tumor Biology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - J R Izbicki
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Y K Vashist
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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15
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Jimenez J, Chakraborty I, Mascharak PK. Synthesis and assessment of CO-release capacity of manganese carbonyl complexes derived from rigid α-diimine ligands of varied complexity. Eur J Inorg Chem 2015; 2015:5021-5026. [PMID: 27524937 DOI: 10.1002/ejic.201500816] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Four manganese carbonyl complexes of the type [MnBr(CO)3(NˆN)] (NˆN = α-diimine ligands) namely [MnBr(CO)3(bpy)] (1), [MnBr(CO)3(phen)] (2), [MnBr(CO)3(dafo)] (3) and [MnBr(CO)3(pyzphen)] (4) (where bpy = bipyridine, phen = 1,10-phenanthroline, dafo = 4,5-diazafluoren-9-one and pyzphen = pyrazino[2,3-f][1,10]-phenanthroline) have been synthesized and structurally characterized. These four complexes containing the fac-[Mn(CO)3] motif release CO upon illumination with low power visible and UV light. The CO release rates and the absorption maxima of the complexes are however very similar despite systematic increase in structural complexity in the rigid α-diimine ligand frames. This is quite in contrary to manganese carbonyl complexes derived from α-diimine ligands in which at least one of the imine functions is not part of the rigid ring systems. Results of this study will provide help in the future design of ligand frames suitable for the syntheses of photoCORMs to deliver CO to biological targets under the control of light.
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Affiliation(s)
- Jorge Jimenez
- Contribution from the Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
| | - Indranil Chakraborty
- Contribution from the Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
| | - Pradip K Mascharak
- Contribution from the Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA 95064, USA
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16
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Qin T, Yin Y, Yu Q, Yang Q. Bursopentin (BP5) protects dendritic cells from lipopolysaccharide-induced oxidative stress for immunosuppression. PLoS One 2015; 10:e0117477. [PMID: 25659113 PMCID: PMC4319828 DOI: 10.1371/journal.pone.0117477] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 12/23/2014] [Indexed: 01/04/2023] Open
Abstract
Dendritic cells (DCs) play a vital role in the regulation of immune-mediated inflammatory diseases. Thus, DCs have been regarded as a major target for the development of immunomodulators. However, oxidative stress could disturb inflammatory regulation in DCs. Here, we examined the effect of bursopentine (BP5), a novel pentapeptide isolated from chicken bursa of fabricius, on the protection of DCs against oxidative stress for immunosuppression. BP5 showed potent protective effects against the lipopolysaccharide (LPS)-induced oxidative stress in DCs, including nitric oxide, reactive oxygen species and lipid peroxidation. Furthermore, BP5 elevated the level of cellular reductive status through increasing the reduced glutathione (GSH) and the GSH/GSSG ratio. Concomitant with these, the activities of several antioxidative redox enzymes, including glutathione peroxidase (GPx), catalase (CAT) and superoxide dismutase (SOD), were obviously enhanced. BP5 also suppressed submucosal DC maturation in the LPS-stimulated intestinal epithelial cells (ECs)/DCs coculture system. Finally, we found that heme oxygenase 1 (HO-1) was remarkably upregulated by BP5 in the LPS-induced DCs, and played an important role in the suppression of oxidative stress and DC maturation. These results suggested that BP5 could protect the LPS-activated DCs against oxidative stress and have potential applications in DC-related inflammatory responses.
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Affiliation(s)
- Tao Qin
- Key Lab of Animal Physiology and Biochemistry of China’s Department of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People’s Republic of China
| | - Yinyan Yin
- Key Lab of Animal Physiology and Biochemistry of China’s Department of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People’s Republic of China
| | - Qinghua Yu
- Key Lab of Animal Physiology and Biochemistry of China’s Department of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People’s Republic of China
| | - Qian Yang
- Key Lab of Animal Physiology and Biochemistry of China’s Department of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People’s Republic of China
- * E-mail:
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17
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Zhang J, Vandevenne P, Hamdi H, Van Puyvelde M, Zucchi A, Bettonville M, Weatherly K, Braun MY. Micro-RNA-155-mediated control of heme oxygenase 1 (HO-1) is required for restoring adaptively tolerant CD4+ T-cell function in rodents. Eur J Immunol 2015; 45:829-42. [PMID: 25641586 DOI: 10.1002/eji.201445066] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 11/18/2014] [Accepted: 01/08/2015] [Indexed: 01/05/2023]
Abstract
T cells chronically stimulated by a persistent antigen often become dysfunctional and lose effector functions and proliferative capacity. To identify the importance of micro-RNA-155 (miR-155) in this phenomenon, we analyzed mouse miR-155-deficient CD4(+) T cells in a model where the chronic exposure to a systemic antigen led to T-cell functional unresponsiveness. We found that miR-155 was required for restoring function of T cells after programmed death receptor 1 blockade. Heme oxygenase 1 (HO-1) was identified as a specific target of miR-155 and inhibition of HO-1 activity restored the expansion and tissue migration capacity of miR-155(-/-) CD4(+) T cells. Moreover, miR-155-mediated control of HO-1 expression in CD4(+) T cells was shown to sustain in vivo antigen-specific expansion and IL-2 production. Thus, our data identify HO-1 regulation as a mechanism by which miR-155 promotes T-cell-driven inflammation.
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Affiliation(s)
- Jinyu Zhang
- Institute for Medical Immunology, Faculty of Medicine, Université Libre de Bruxelles (ULB), Gosselies, Belgium; Department of Clinical Microbiology and Immunology, College of Medical Laboratory Sciences, Third Military Medical University, Chongqing, China
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18
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von Rossum A, Laher I, Choy JC. Immune-mediated vascular injury and dysfunction in transplant arteriosclerosis. Front Immunol 2015; 5:684. [PMID: 25628623 PMCID: PMC4290675 DOI: 10.3389/fimmu.2014.00684] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 12/18/2014] [Indexed: 12/16/2022] Open
Abstract
Solid organ transplantation is the only treatment for end-stage organ failure but this life-saving procedure is limited by immune-mediated rejection of most grafts. Blood vessels within transplanted organs are targeted by the immune system and the resultant vascular damage is a main contributor to acute and chronic graft failure. The vasculature is a unique tissue with specific immunological properties. This review discusses the interactions of the immune system with blood vessels in transplanted organs and how these interactions lead to the development of transplant arteriosclerosis, a leading cause of heart transplant failure.
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Affiliation(s)
- Anna von Rossum
- Department of Molecular Biology and Biochemistry, Simon Fraser University , Burnaby, BC , Canada
| | - Ismail Laher
- Department of Anaesthesiology, Pharmacology and Therapeutics, University of British Columbia , Vancouver, BC , Canada
| | - Jonathan C Choy
- Department of Molecular Biology and Biochemistry, Simon Fraser University , Burnaby, BC , Canada
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19
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Wang TY, Liu CL, Chen MJ, Lee JJ, Pun PC, Cheng SP. Expression of haem oxygenase-1 correlates with tumour aggressiveness and BRAF V600E expression in thyroid cancer. Histopathology 2014; 66:447-56. [PMID: 25262966 DOI: 10.1111/his.12562] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Accepted: 09/24/2014] [Indexed: 02/04/2023]
Abstract
AIMS Haem oxygenase-1 (HO-1) is an inducible enzyme that participates in haem degradation. Recent studies have indicated that HO-1 activation may play a role in tumour development and progression. The aim of this study was to evaluate the expression of HO-1 in thyroid cancer and its clinicopathological significance. METHODS AND RESULTS We observed up-regulation of HO-1 in papillary thyroid tumours in comparison with normal thyroid tissue. Immunohistochemical analysis revealed that 48% of papillary cancers and 36% of follicular cancers, but none of normal thyroid tissues, were positive for HO-1 expression. Among 129 differentiated thyroid cancers, HO-1 expression was associated with patient age (P = 0.001), TNM stage (P = 0.001), and Mayo Clinic metastasis, patient age, completeness of resection, local invasion and tumour size score (P = 0.001). BRAF V600E expression was evaluated immunohistochemically and validated by Sanger sequencing. There was a strong association between HO-1 and BRAF V600E expression in papillary cancers (P = 0.002). CONCLUSIONS Overexpression of HO-1 in a subset of thyroid cancers is associated with tumour aggressiveness and BRAF V600E expression. HO-1 might have a potential role in prognosis and targeted treatment in patients with thyroid cancer.
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Affiliation(s)
- Tao-Yeuan Wang
- Department of Pathology, Mackay Memorial Hospital and Mackay Medical College, Taipei, Taiwan; Mackay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan
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20
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Control of Disease Tolerance to Malaria by Nitric Oxide and Carbon Monoxide. Cell Rep 2014; 8:126-36. [DOI: 10.1016/j.celrep.2014.05.054] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 04/23/2014] [Accepted: 05/29/2014] [Indexed: 12/30/2022] Open
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Chakraborty I, Carrington SJ, Mascharak PK. Photodelivery of CO by designed PhotoCORMs: correlation between absorption in the visible region and metal-CO bond labilization in carbonyl complexes. ChemMedChem 2014; 9:1266-74. [PMID: 24756950 DOI: 10.1002/cmdc.201402007] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Indexed: 12/21/2022]
Abstract
The therapeutic potential of photoactive CO-releasing molecules (photoCORMs) have called for close examination of the roles of the ligand(s) and the central metal atoms on the overall photochemical labilization of the metal-CO bonds. Along this line, we have synthesized four metal complexes, namely, [MnBr(azpy)(CO)3 ] (1), [Mn(azpy)(CO)3 (PPh3 )]ClO4 (2), [ReBr(azpy)(CO)3 ] (3), and [Re(azpy)(CO)3 (PPh3 )]ClO4 (4), derived from 2-phenylazopyridine. These complexes were characterized by spectroscopic and crystallographic studies. Although both 1 and 3 exhibit strong metal-to-ligand charge-transfer bands in the 500-600 nm region, only 1 photoreleases CO upon illumination with visible light. Results of theoretical studies were used to gain insight into this surprising difference. Strong spin-orbit coupling (prominent in heavy metals) appears to promote intersystem crossing to a triplet state in 3, a step that discourages CO release upon illumination with visible light. Slow release of CO from 2 and 4 also indicates that strong σ-donating ligands, such as Br(-) , accelerate the rate of CO photorelease relative to π-acid ligands, such as PPh3 .
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Affiliation(s)
- Indranil Chakraborty
- Department of Chemistry and Biochemistry, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064 (USA)
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23
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Bodonyi-Kovacs G, Strom TB, Putheti P. A20—A Biomarker of Allograft Outcome: A Showcase in Kidney Transplantation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 809:103-16. [DOI: 10.1007/978-1-4939-0398-6_7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Liu Q, Wang B, Yin Y, Chen G, Wang W, Gao X, Wang P, Zhou H. Overexpressions of HO-1/HO-1G143H in C57/B6J mice affect melanoma B16F10 lung metastases rather than change the survival rate of mice-bearing tumours. Exp Biol Med (Maywood) 2013; 238:696-704. [PMID: 23918881 DOI: 10.1177/1535370213490628] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2023] Open
Abstract
Heme oxygenase-1 (HO-1) is often upregulated in tumour tissues and endows tumour cells with cytoprotection and antiapoptosis. It is worthy of note that some people show higher activity of HO-1 and some anti-cancer therapies could induce HO-1 expression in normal tissues, but the effect of HO-1 of normal tissues on tumours among these people remains unknown. To assess the effect of HO-1 of normal tissues on tumour progressiveness, we investigated the growth, metastasis and angiogenic potential of murine melanoma B16F10 cells in transgenic mice overexpressing HO-1 and its negative dominant mutant HO-1G143H, respectively. The results demonstrated that neither overexpression of HO-1 nor overexpression of HO-1G143H in normal tissues could significantly change the survival rate of tumour-bearing mice, but HO-1 overexpression could inhibit lung metastases and HO-1G143H could significantly promote lung metastases. Meanwhile, the leukocytes infiltration was reduced and angiogenesis was promoted in tumours in mice overexpressing HO-1, but the opposite was true in mice overexpressing HO-1G143H. Our findings suggested that overexpression of HO-1 might be conducive to patients bearing melanoma metastasis.
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Affiliation(s)
- Qingjun Liu
- Institute of Transfusion Medicine, Academy of Military Medical Sciences, Beijing 100850, China
| | - Bo Wang
- Institute of Transfusion Medicine, Academy of Military Medical Sciences, Beijing 100850, China
| | - Yujing Yin
- Institute of Transfusion Medicine, Academy of Military Medical Sciences, Beijing 100850, China
| | - Gan Chen
- Institute of Transfusion Medicine, Academy of Military Medical Sciences, Beijing 100850, China
| | - Wei Wang
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin 150081, China
| | - Xu Gao
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin 150081, China
| | - Peng Wang
- Laboratory Animal Center, Academy of Military Medical Sciences, Beijing 100071, China
| | - Hong Zhou
- Institute of Transfusion Medicine, Academy of Military Medical Sciences, Beijing 100850, China
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Regateiro FS, Cobbold SP, Waldmann H. CD73 and adenosine generation in the creation of regulatory microenvironments. Clin Exp Immunol 2013. [PMID: 23199317 DOI: 10.1111/j.1365-2249.2012.04623.x] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Extracellular adenosine 5'-triphosphate (ATP) acts on many immune cells to promote inflammation. Conversely, the ATP metabolite adenosine is mainly an anti-inflammatory molecule. The ecto-enzymes CD39 and CD73 can dephosphorylate extracellular ATP to adenosine, thereby controlling this important pathway of immune modulation. Despite their established roles in the immune system, little is known of how CD39 and CD73 are themselves regulated. Recent data have shown that CD73 expression and adenosine generation are up-regulated by transforming growth factor-β, depending on the cytokine content of the local microenvironment. We review here these recent findings and discuss their implications in disease.
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Affiliation(s)
- F S Regateiro
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
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Schumacher A, Wafula PO, Teles A, El-Mousleh T, Linzke N, Zenclussen ML, Langwisch S, Heinze K, Wollenberg I, Casalis PA, Volk HD, Fest S, Zenclussen AC. Blockage of heme oxygenase-1 abrogates the protective effect of regulatory T cells on murine pregnancy and promotes the maturation of dendritic cells. PLoS One 2012; 7:e42301. [PMID: 22900010 PMCID: PMC3416808 DOI: 10.1371/journal.pone.0042301] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Accepted: 07/06/2012] [Indexed: 12/12/2022] Open
Abstract
Regulatory T cells (Treg) play an important role in fetal protection. They expand during normal pregnancy and protect fetal antigens from maternal effector cells. Their effect is associated with the up-regulation of tolerance-associated molecules at the fetal-maternal interface. Among these, Heme Oxygenase-1 (HO-1, coded by Hmox1) is of special importance as its blockage correlates with increased abortion rates and its up-regulation positively affects pregnancy outcome. Here, we aimed to investigate whether the protective effect of Treg is mediated by HO-1 in a mouse model. HO-1 blockage by Zinc Protoporhyrin (ZnPPIX) abrogated the protective effect of Treg transfer. We found that HO-1 is important in maintaining maternal dendritic cells (DCs) in an immature state, which contributes to the expansion of the peripheral Treg population. This brings to light one essential pathway through which Treg mediates the semi-allogeneic fetus tolerance.
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Affiliation(s)
- Anne Schumacher
- Department of Experimental Obstetrics and Gynaecology, Medical Faculty, Otto-von Guericke University of Magdeburg, Magdeburg, Germany
| | - Paul Ojiambo Wafula
- Institute of Medical Immunology, Charité, Medical University Berlin, Berlin, Germany
| | - Ana Teles
- Department of Experimental Obstetrics and Gynaecology, Medical Faculty, Otto-von Guericke University of Magdeburg, Magdeburg, Germany
| | - Tarek El-Mousleh
- Department of Experimental Obstetrics and Gynaecology, Medical Faculty, Otto-von Guericke University of Magdeburg, Magdeburg, Germany
| | - Nadja Linzke
- Department of Experimental Obstetrics and Gynaecology, Medical Faculty, Otto-von Guericke University of Magdeburg, Magdeburg, Germany
| | - Maria Laura Zenclussen
- Department of Experimental Obstetrics and Gynaecology, Medical Faculty, Otto-von Guericke University of Magdeburg, Magdeburg, Germany
| | - Stefanie Langwisch
- Department of Experimental Obstetrics and Gynaecology, Medical Faculty, Otto-von Guericke University of Magdeburg, Magdeburg, Germany
| | - Kristina Heinze
- Department of Experimental Obstetrics and Gynaecology, Medical Faculty, Otto-von Guericke University of Magdeburg, Magdeburg, Germany
| | - Ivonne Wollenberg
- Institute of Medical Immunology, Charité, Medical University Berlin, Berlin, Germany
| | - Pablo Ariel Casalis
- Institute of Medical Immunology, Charité, Medical University Berlin, Berlin, Germany
| | - Hans-Dieter Volk
- Institute of Medical Immunology, Charité, Medical University Berlin, Berlin, Germany
| | - Stefan Fest
- Paediatric Oncology, Hematology and Haemostaseology, Universitätsklinikum Leipzig, Leipzig, Germany
| | - Ana Claudia Zenclussen
- Department of Experimental Obstetrics and Gynaecology, Medical Faculty, Otto-von Guericke University of Magdeburg, Magdeburg, Germany
- Institute of Medical Immunology, Charité, Medical University Berlin, Berlin, Germany
- * E-mail:
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Dorling A. Transplant accommodation--are the lessons learned from xenotransplantation pertinent for clinical allotransplantation? Am J Transplant 2012; 12:545-53. [PMID: 22050724 DOI: 10.1111/j.1600-6143.2011.03821.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
"Accommodation" refers to a vascularized transplant that has acquired resistance to antibody-mediated rejection (AMR). The term was coined in 1990, but the phenomenon was first described after clinical ABO-incompatible (ABOi) renal transplantation in the 1980s and is recognized as a common outcome in this context today. Because of the absence, until recently of reliable animal models of allograft accommodation, it has been studied extensively by investigators in the xenotransplantation field. With recent advances in the ability to recognize and diagnose AMR in human organs, the growth of desensitization programmes for transplantation into sensitized recipients and the availability of therapies that have the potential to promote accommodation, it is timely to review the literature in this area, identifying lessons that may inform preclinical and clinical studies in the future.
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Affiliation(s)
- A Dorling
- Medical Research Council Centre for Transplantation & Innate Immunity Section, Division of Transplantation Immunology and Mucosal Biology, King's College London, Guy's Hospital, Great Maze Pond, London, UK
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Gu Q, Wu Q, Jin M, Xiao Y, Xu J, Mao C, Zhao F, Zhang Y, Zhang Y. Heme oxygenase-1 alleviates mouse hepatic failure through suppression of adaptive immune responses. J Pharmacol Exp Ther 2011; 340:2-10. [PMID: 21946119 DOI: 10.1124/jpet.111.186551] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Heme oxygenase-1 (HO-1) has protective effects on liver damage induced by noxious stimuli. The mechanism of action of HO-1 is not well understood. In the present study, we investigate the effect of HO-1 in a model of fulminant hepatic failure induced by Propionibacterium acnes and lipopolysaccharide (LPS). The expression of HO-1 mRNA and protein in the liver was increased after repeated administration of the HO-1 inducer cobalt protoporphyrin IX. We found that HO-1 protected mice from acute liver damage induced by P. acnes/LPS and prolonged survival. On the contrary, administration of the HO-1 inhibitor zinc protoporphyrin IX increased liver damage induced by P. acnes/LPS. Subsequently, to investigate the underlying mechanisms of HO-1 in the acute liver injury model, we primed mice with P. acnes only. We found that the expression of HO-1 mRNA and protein in dendritic cells (DCs) was increased after the administration of cobalt protoporphyrin IX. HO-1 decreased the mature markers major histocompatibility complex II and CD80 on liver DCs. The expression of CCR7, CCL2, and CCL22 mRNA, which are expressed by mature DCs, was also reduced. These liver DCs could not efficiently stimulate CD4+ T cell activation and proliferation. Consequently, HO-1 inhibited the activation, proliferation, and T helper 1 polarization of liver-infiltrating CD4+ T cells and reduced the production of serum alanine aminotransferase and proinflammatory cytokines such as interferon-γ and tumor necrosis factor-α. Taken together, our data suggest that HO-1 alleviates P. acnes/LPS-induced fulminant hepatic failure, probably by inhibiting DC-induced adaptive responses.
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Affiliation(s)
- Qiaoli Gu
- Shanghai Institute of Immunology, Shanghai Institutes for Biological Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Wang CF, Wang ZY, Li JY. Dual protective role of HO-1 in transplanted liver grafts: A review of experimental and clinical studies. World J Gastroenterol 2011; 17:3101-8. [PMID: 21912452 PMCID: PMC3158409 DOI: 10.3748/wjg.v17.i26.3101] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Revised: 02/02/2011] [Accepted: 02/09/2011] [Indexed: 02/06/2023] Open
Abstract
Liver transplantation is considered as the most effective treatment for end-stage liver disease. However, serious complications still exist, particularly in two aspects: ischemia and subsequent reperfusion of the liver, causing postoperative hepatic dysfunction and even failure; and acute and chronic graft rejections, affecting the allograft survival. Heme oxygenase (HO), a stress-response protein, is believed to exert a protective function on both the development of ischemia-reperfusion injury (IRI) and graft rejection. In this review of current researches on allograft protection, we focused on the HO-1. We conjecture that HO-1 may link these two main factors affecting the prognosis of liver transplantations. In this review, the following aspects were emphasized: the basic biological functions of HO-1, its roles in IRI and allograft rejection, as well as methods to induce HO-1 and the prospects of a therapeutic application of HO-1 in liver transplantation.
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Durante W. Protective role of heme oxygenase-1 against inflammation in atherosclerosis. Front Biosci (Landmark Ed) 2011; 16:2372-88. [PMID: 21622183 DOI: 10.2741/3860] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Heme oxygenase-1 (HO-1) catalyzes the first and rate-limiting step in the metabolism of free heme into equimolar amounts of ferrous iron, carbon monoxide (CO), and biliverdin. Biliverdin is subsequently converted to bilirubin by biliverdin reductase. HO-1 has recently been identified as a promising therapeutic target in the treatment of vascular inflammatory disease, including atherosclerosis. HO-1 represses inflammation by removing the pro-inflammatory molecule heme and by generating CO and the bile pigments, biliverdin and bilirubin. These HO-1 reaction products are capable of blocking innate and adaptive immune responses by modifying the activation, differentiation, maturation, and/or polarization of numerous immune cells, including endothelial cells, monocytes/macrophages, dendritic cells, T lymphocytes, mast cells, and platelets. These cellular actions by CO and bile pigments result in diminished leukocyte recruitment and infiltration, and pro-inflammatory mediator production within atherosclerotic lesions. This review highlights the mechanisms by which HO-1 suppresses vascular inflammation in atherosclerosis, and explores possible therapeutic modalities by which HO-1 and its reaction products can be employed to ameliorate vascular inflammatory disease.
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Affiliation(s)
- William Durante
- Department of Medical Pharmacology and Physiology, School of Medicine, University of Missouri, Columbia, MO, USA.
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Cao YA, Kusy S, Luong R, Wong RJ, Stevenson DK, Contag CH. Heme oxygenase-1 deletion affects stress erythropoiesis. PLoS One 2011; 6:e20634. [PMID: 21655188 PMCID: PMC3105104 DOI: 10.1371/journal.pone.0020634] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Accepted: 05/06/2011] [Indexed: 01/28/2023] Open
Abstract
Background Homeostatic erythropoiesis leads to the formation of mature red blood cells under non-stress conditions, and the production of new erythrocytes occurs as the need arises. In response to environmental stimuli, such as bone marrow transplantation, myelosuppression, or anemia, erythroid progenitors proliferate rapidly in a process referred to as stress erythropoiesis. We have previously demonstrated that heme oxygenase-1 (HO-1) deficiency leads to disrupted stress hematopoiesis. Here, we describe the specific effects of HO-1 deficiency on stress erythropoiesis. Methodology/Principal Findings We used a transplant model to induce stress conditions. In irradiated recipients that received hmox+/− or hmox+/+ bone marrow cells, we evaluated (i) the erythrocyte parameters in the peripheral blood; (ii) the staining intensity of CD71-, Ter119-, and CD49d-specific surface markers during erythroblast differentiation; (iii) the patterns of histological iron staining; and (iv) the number of Mac-1+-cells expressing TNF-α. In the spleens of mice that received hmox+/− cells, we show (i) decreases in the proerythroblast, basophilic, and polychromatophilic erythroblast populations; (ii) increases in the insoluble iron levels and decreases in the soluble iron levels; (iii) increased numbers of Mac-1+-cells expressing TNF-α; and (iv) decreased levels of CD49d expression in the basophilic and polychromatophilic erythroblast populations. Conclusions/Significance As reflected by effects on secreted and cell surface proteins, HO-1 deletion likely affects stress erythropoiesis through the retention of erythroblasts in the erythroblastic islands of the spleen. Thus, HO-1 may serve as a therapeutic target for controlling erythropoiesis, and the dysregulation of HO-1 may be a predisposing condition for hematologic diseases.
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Affiliation(s)
- Yu-An Cao
- Department of Pediatrics, Stanford University School of Medicine, Stanford, California, United States of America
| | - Sophie Kusy
- Department of Pediatrics, Stanford University School of Medicine, Stanford, California, United States of America
| | - Richard Luong
- Department of Comparative Medicine, Stanford University School of Medicine, Stanford, California, United States of America
| | - Ronald J. Wong
- Department of Pediatrics, Stanford University School of Medicine, Stanford, California, United States of America
| | - David K. Stevenson
- Department of Pediatrics, Stanford University School of Medicine, Stanford, California, United States of America
| | - Christopher H. Contag
- Department of Pediatrics, Stanford University School of Medicine, Stanford, California, United States of America
- * E-mail:
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Heme Oxygenase-1 Promoter Polymorphism is a Predictor of Disease Relapse in Pancreatic Neuroendocrine Tumors. J Surg Res 2011; 166:e121-7. [DOI: 10.1016/j.jss.2010.11.898] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2010] [Revised: 10/28/2010] [Accepted: 11/16/2010] [Indexed: 11/23/2022]
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Unconjugated bilirubin contributes to early inflammation and edema after intracerebral hemorrhage. J Cereb Blood Flow Metab 2011; 31:1133-42. [PMID: 21102603 PMCID: PMC3070973 DOI: 10.1038/jcbfm.2010.203] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Intracerebral hemorrhage (ICH) is a stroke subtype with significant mortality and morbidity. The role of unconjugated bilirubin (UBR) in ICH brain injury is not well understood. Therefore, we studied the effects of UBR on brain injury markers and inflammation, as well as mechanisms involved therein. We induced ICH in mice by infusion of autologous whole blood with vehicle (dimethyl sulfoxide) or UBR. We found that UBR led to an increase in edema (P≤0.05), but a decrease in nitrate/nitrite formation (7.0±0.40 nmol/mg versus 5.2±0.70 nmol/mg protein, P≤0.05) and no change in protein carbonyls. Unconjugated bilirubin was also associated with an increase in neutrophil infiltration compared with ICH alone, as determined by both immunofluorescence and flow cytometry (36%±3.2% versus 53%±1.3% of CD45(+) cells, P≤0.05). In contrast, we observed reduced perihematomal microglia immunoreactivity in animals receiving UBR (P≤0.05). Using in vitro techniques, we show neutrophil activation by UBR and also show that protein kinase C participates in this signaling pathway. Finally, we found that UBR was associated with an increased expression of the leukocyte adhesion molecule intercellular adhesion molecule-1. Our results suggest that UBR possesses complex immune-modulatory and antioxidant effects.
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Elassiuty YE, Klarquist J, Speiser J, Yousef RM, El Refaee AA, Hunter NS, Shaker OG, Gundeti M, Nieuweboer-Krobotova L, Le Poole IC. Heme oxygenase-1 expression protects melanocytes from stress-induced cell death: implications for vitiligo. Exp Dermatol 2011; 20:496-501. [PMID: 21426408 DOI: 10.1111/j.1600-0625.2010.01232.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
To study protection of melanocytes from stress-induced cell death by heme oxygenases during depigmentation and repigmentation in vitiligo, expression of isoforms 1 and 2 was studied in cultured control and patient melanocytes and normal skin explants exposed to UV or bleaching agent 4-TBP. Similarly, expression of heme oxygenases was followed in skin from vitiligo patients before and after PUVA treatment. Single and double immunostainings were used in combination with light and confocal microscopic analysis and Western blotting. Melanocyte expression of heme oxygenase 1 is upregulated, whereas heme oxygenase 2 is reduced in response to UV and 4-TBP. Upregulation of inducible heme oxygenase 1 was also observed in UV-treated explant cultures, in skin of successfully PUVA-treated patients and in melanocytes cultured from vitiligo non-lesional skin. Heme oxygenase encoding genes were subsequently cloned to study consequences of either gene product on cell viability, demonstrating that HO-1 but not HO-2 overexpression offers protection from stress-induced cell death in MTT assays. HO-1 expression by melanocytes may contribute to beneficial effects of UV treatment for vitiligo patients.
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Affiliation(s)
- Yasser E Elassiuty
- Department of Pathology, Microbiology and Immunology/Oncology Institute, Loyola University Chicago, IL, USA
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Sun L, Shi T, Qiao H, Jiang X, Jiang H, Krissansen GW, Sun X. Hepatic overexpression of heme oxygenase-1 improves liver allograft survival by expanding T regulatory cells. J Surg Res 2010; 166:e187-94. [PMID: 21227452 DOI: 10.1016/j.jss.2010.11.917] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2010] [Revised: 11/19/2010] [Accepted: 11/24/2010] [Indexed: 12/13/2022]
Abstract
BACKGROUND Heme oxygenase (HO)-1 protects transplanted organs from ischemia reperfusion injury and immune rejection. This study sought to investigate whether persistent overexpression of HO-1 in donor livers could improve the survival by expanding T regulatory cells in a rat model of orthotopic liver transplantation. METHODS Livers of Dark Agouti rats were intraportally perfused with an AAV expression vector encoding rat HO-1 (AAV-HO-1), and then transplanted into Lewis rats. The survival, HO-1 activity, Banff rejection activity index, serum levels of IL-2 and TNF-α, infiltration of CD4(+), CD8(+), and T(reg) (CD4(+)CD25(+)Foxp3(+)) cells into donor livers, and expression of Foxp3, TGF-β, and IL-10 were examined. A mixed lymphocyte reaction (MLR) was performed. RESULTS Intraportal delivery of AAV-HO-1 resulted in persistent expression of HO-1 and increased activity of HO-1 in transplanted livers, leading to prolonged survival of recipients. Overexpression of HO-1 reduced the Banff rejection activity index, and production of IL-2 and TNF-α, inhibited infiltration of CD4(+) and CD8(+) cells, and increased infiltration of T(reg) cells, into donor livers. The spleens of recipients expressed higher levels of Foxp3, TGF-β, and IL-10 than those of control rats, and the transplanted livers expressed higher levels of Foxp3 and TGF-β. Splenocytes from the tolerant recipients had higher percentages of T(reg) cells, and responded poorly to the allogeneic donor splenocytes. CONCLUSIONS Persistent expression of HO-1 in donor livers by intraportal delivery of AAV-HO-1 improves the survival by expanding T(reg) cells. HO-1-based therapies, as described herein, promise new strategies to prevent the rejection of liver transplants.
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Affiliation(s)
- Liang Sun
- Department of General Surgery, the First Affiliated Hospital of Harbin Medical University, Harbin, China
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Chen X, Zhang Z, Su C, Gu W, Li H, Zhou G. Protective Effect of Heme Oxygenase-1 to Pancreas Islet Xenograft. J Surg Res 2010; 164:336-43. [DOI: 10.1016/j.jss.2009.08.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2009] [Revised: 07/16/2009] [Accepted: 08/03/2009] [Indexed: 11/26/2022]
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Inhalation of carbon monoxide ameliorates TNBS-induced colitis in mice through the inhibition of TNF-α expression. Dig Dis Sci 2010; 55:2797-804. [PMID: 20094779 DOI: 10.1007/s10620-009-1112-x] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2009] [Accepted: 12/15/2009] [Indexed: 12/25/2022]
Abstract
BACKGROUND Carbon monoxide (CO), long considered a toxic gas, has recently been shown to mediate anti-inflammatory effects in various animal models. The aim of this study was to investigate whether the inhalation of CO ameliorated 2,4,6-trinitrobenzine sulfonic acid (TNBS)-induced colitis in mice. METHODS The CO treatment group was exposed to CO gas at a concentration of 200 ppm in a closed cage starting on the day when TNBS was administered and throughout the remaining study period. The distal colon was removed, and ulcerative lesions were subsequently evaluated with macroscopic damage scores. Furthermore, thiobarbituric acid (TBA)-reactive substances and tissue-associated myeloperoxidase (MPO) activity in colonic mucosa were measured as indices of lipid peroxidation and neutrophil infiltration. The expressions of TNF-α in colonic mucosa were also measured by enzyme-linked immunosorbent assay. In additional experiments in vitro, CD4(+) T cells isolated from the spleen were stimulated with anti-CD3/CD28 Ab, and the cells and supernatants were collected and evaluated for TNF-α expression. RESULTS The increased colonic damage after TNBS administration was significantly inhibited by the treatment with CO. Furthermore, CO significantly inhibited the increases in TBA-reactive substances, MPO activity and TNF-α production in colonic mucosa after the induction of TNBS colitis. In CD4(+) T cells isolated from mice treated with CO inhalation, the production of TNF-α was significantly inhibited. CONCLUSIONS The inhalation of CO protected mice from developing intestinal inflammation. Based on these data, the beneficial effects of CO in a murine colitis model may be attributed to its anti-inflammatory properties.
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Larsen R, Gozzelino R, Jeney V, Tokaji L, Bozza FA, Japiassu AM, Bonaparte D, Cavalcante MM, Chora A, Ferreira A, Marguti I, Cardoso S, Sepulveda N, Smith A, Soares MP. A Central Role for Free Heme in the Pathogenesis of Severe Sepsis. Sci Transl Med 2010; 2:51ra71. [DOI: 10.1126/scitranslmed.3001118] [Citation(s) in RCA: 339] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Motterlini R, Otterbein LE. The therapeutic potential of carbon monoxide. Nat Rev Drug Discov 2010; 9:728-43. [PMID: 20811383 DOI: 10.1038/nrd3228] [Citation(s) in RCA: 1156] [Impact Index Per Article: 82.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Besenzon F, Dedja A, Vadori M, Bosio E, Seveso M, Tognato E, Polito L, Calabrese F, Valente M, Rigotti P, Ancona E, Cozzi E. In vitro and in vivo immunomodulatory effects of cobalt protoporphyrin administered in combination with immunosuppressive drugs. Transpl Immunol 2010; 24:1-8. [PMID: 20713156 DOI: 10.1016/j.trim.2010.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Revised: 08/09/2010] [Accepted: 08/09/2010] [Indexed: 11/20/2022]
Abstract
BACKGROUND Immunosuppressive strategies are designed to take advantage of potential synergies between drugs to possibly decrease the risk of side-effects. In the present study, the ability of Cobalt protoporphyrin (CoPP) to potentiate the effect of the immunosuppressive drugs mycophenolate sodium (MPS) or cyclosporin A (CsA) was explored in vitro and in vivo. METHODS In vitro analyses of proliferation and apoptosis were performed on primate T cell cultures, following incubation with the immunosuppressive drugs MPS or CsA, alone or in combination with CoPP. In vivo the effect of CoPP and CsA combination therapy was assessed in a rat heterotopic cardiac allotransplantation model. RESULTS In vitro results suggest that co-administration of CoPP with CsA or MPS increases immunosuppressive effects of these drugs when combined with CoPP. In particular, the co-administration of CoPP with CsA resulted in the synergistic induction of lymphocyte apoptosis. In vivo, animals immunosuppressed with CsA (1.5 mg/kg) or CoPP (20 mg/kg) alone, had a median survival of 7 or 8 days, respectively. In contrast, animals immunosuppressed with CsA (1.5 mg/kg) combined with CoPP (20 mg/kg) had significantly prolonged median survival (12 days), compared to recipients treated with CsA or CoPP alone (p<0.05). CONCLUSION Our in vitro and in vivo studies demonstrate that CoPP can potentiate the immunomodulatory effects of CsA, ultimately extending allograft survival.
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Affiliation(s)
- Federica Besenzon
- Department of Surgical and Gastroenterological Sciences, University of Padua, Ospedale Giustinianeo, Padua, Italy.
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Role of heme oxygenase in inflammation, insulin-signalling, diabetes and obesity. Mediators Inflamm 2010; 2010:359732. [PMID: 20508722 PMCID: PMC2872759 DOI: 10.1155/2010/359732] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2009] [Revised: 02/15/2010] [Accepted: 02/24/2010] [Indexed: 12/19/2022] Open
Abstract
Diabetes and obesity are chronic conditions associated with elevated oxidative/inflammatory activities with a continuum of tissue insults leading to more severe cardiometabolic and renal complications including myocardial infarction and end-stage-renal damage. A common denominator of these chronic conditions is the enhanced the levels of cytokines like tumour necrosis factor-alpha (TNF-α), interleukin (IL-6), IL-1β and resistin, which in turn activates the c-Jun-N-terminal kinase (JNK) and NF-κB pathways, creating a vicious cycle that exacerbates insulin resistance, type-2 diabetes and related complications. Emerging evidence indicates that heme oxygenase (HO) inducers are endowed with potent anti-diabetic and insulin sensitizing effects besides their ability to suppress immune/inflammatory response. Importantly, the HO system abates inflammation through several mechanisms including the suppression of macrophage-infiltration and abrogation of oxidative/inflammatory transcription factors like NF-κB, JNK and activating protein-1. This review highlights the mechanisms by which the HO system potentiates insulin signalling, with particular emphasis on HO-mediated suppression of oxidative and inflammatory insults. The HO system could be explored in the search for novel remedies against cardiometabolic diseases and their complications.
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Yu Y, Sun L, Ma L, Li J, Hu L, Liu J. Investigation of the immunosuppressive activity of Physalin H on T lymphocytes. Int Immunopharmacol 2009; 10:290-7. [PMID: 19951747 DOI: 10.1016/j.intimp.2009.11.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2009] [Revised: 10/15/2009] [Accepted: 11/24/2009] [Indexed: 12/27/2022]
Abstract
Physalis angulata is an annual herb widely used in folk medicine. It is mainly used for treating rheumatoid arthritis (RA). Following bioactivity-guided isolation, a representative immunosuppressive compound, Physalin H was been identified from this herb medicine. The purpose of this work was to assess the immunosuppressive activity of Physalin H on T cells and to explore its potential mode of action. The results showed that Physalin H in a dose-dependent manner significantly inhibited the proliferation of T cells induced by concanavalin A (ConA) and by the mixed lymphocyte culture reaction (MLR). This inhibitive activity was mainly due to interfering DNA replication in G1 stages. In vivo experiments showed that, administration of Physalin H dose-dependently suppressed CD4(+) T cell mediated delayed-type hypersensitivity (DTH) reactions, and suppressed antigen-specific T-cell response in ovalbumin (OVA) immunized mice. Further study indicated that Physalin H could modulate Th1/Th2 cytokine balance and induce the production of immune regulation target Heme oxygenase (HO)-1 in T-cells in vitro. In this study, we demonstrated the immunosuppressive effect of Physalin H on T cells both in vitro and in vivo, and the immunosuppressive activity might be attributed to the suppression of T cell activation and proliferation, the modulation of Th1/Th2 cytokine balance and the induction of HO-1 in T cells.
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Affiliation(s)
- Youjun Yu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, China
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Donor HO-1 Expression Inhibits Intimal Hyperplasia in Unmanipulated Graft Recipients: A Potential Role for CD8+ T-Cell Modulation by Carbon Monoxide. Transplantation 2009; 88:653-61. [DOI: 10.1097/tp.0b013e3181b2fd83] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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44
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De Wilde V, Van Rompaey N, Hill M, Lebrun JF, Lemaître P, Lhommé F, Kubjak C, Vokaer B, Oldenhove G, Charbonnier LM, Cuturi MC, Goldman M, Le Moine A. Endotoxin-induced myeloid-derived suppressor cells inhibit alloimmune responses via heme oxygenase-1. Am J Transplant 2009; 9:2034-47. [PMID: 19681826 DOI: 10.1111/j.1600-6143.2009.02757.x] [Citation(s) in RCA: 124] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Inflammation and cancer are associated with impairment of T-cell responses by a heterogeneous population of myeloid-derived suppressor cells (MDSCs) coexpressing CD11b and GR-1 antigens. MDSCs have been recently implicated in costimulation blockade-induced transplantation tolerance in rats, which was under the control of inducible NO synthase (iNOS). Herein, we describe CD11b+GR-1+MDSC-compatible cells appearing after repetitive injections of lipopolysaccharide (LPS) using a unique mechanism of suppression. These cells suppressed T-cell proliferation and Th1 and Th2 cytokine production in both mixed lymphocyte reaction and polyclonal stimulation assays. Transfer of CD11b+ cells from LPS-treated mice in untreated recipients significantly prolonged skin allograft survival. They produced large amounts of IL-10 and expressed heme oxygenase-1 (HO-1), a stress-responsive enzyme endowed with immunoregulatory and cytoprotective properties not previously associated with MDSC activity. HO-1 inhibition by the specific inhibitor, SnPP, completely abolished T-cell suppression and IL-10 production. In contrast, neither iNOS nor arginase 1 inhibition did affect suppression. Importantly, HO-1 inhibition before CD11b+ cell transfer prevented the delay of allograft rejection revealing a new MDSC-associated suppressor mechanism relevant for transplantation.
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Affiliation(s)
- V De Wilde
- Institute for Medical Immunology, Université Libre de Bruxelles, Gosselies, Belgium
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Heme oxygenase-1 affords protection against noncerebral forms of severe malaria. Proc Natl Acad Sci U S A 2009; 106:15837-42. [PMID: 19706490 DOI: 10.1073/pnas.0903419106] [Citation(s) in RCA: 215] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Infection by Plasmodium, the causative agent of malaria, is associated with hemolysis and therefore with release of hemoglobin from RBC. Under inflammatory conditions, cell-free hemoglobin can be oxidized, releasing its heme prosthetic groups and producing deleterious free heme. Here we demonstrate that survival of a Plasmodium-infected host relies strictly on its ability to prevent the cytotoxic effects of free heme via the expression of the heme-catabolyzing enzyme heme oxygenase-1 (HO-1; encoded by the Hmox1 gene). When infected with Plasmodium chabaudi chabaudi (Pcc), wild-type (Hmox1(+/+)) BALB/c mice resolved infection and restored homeostasis thereafter (0% lethality). In contrast, HO-1 deficient (Hmox1(-/-)) BALB/c mice developed a lethal form of hepatic failure (100% lethality), similar to the one occurring in Pcc-infected DBA/2 mice (75% lethality). Expression of HO-1 suppresses the pro-oxidant effects of free heme, preventing it from sensitizing hepatocytes to undergo TNF-mediated programmed cell death by apoptosis. This cytoprotective effect, which inhibits the development of hepatic failure in Pcc-infected mice without interfering with pathogen burden, is mimicked by pharmacological antioxidants such as N-acetylcysteine (NAC). When administered therapeutically, i.e., after Pcc infection, NAC suppressed the development of hepatic failure in Pcc-infected DBA/2 mice (0% lethality), without interfering with pathogen burden. In conclusion, we describe a mechanism of host defense against Plasmodium infection, based on tissue cytoprotection against free heme and limiting disease severity irrespectively of parasite burden.
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Immunoregulatory effects of HO-1: how does it work? Curr Opin Pharmacol 2009; 9:482-9. [PMID: 19586801 DOI: 10.1016/j.coph.2009.05.008] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2009] [Revised: 05/29/2009] [Accepted: 05/29/2009] [Indexed: 11/20/2022]
Abstract
The heme-catabolizing enzyme heme oxygenase-1 (HO-1; encoded by the Hmox1 gene) inhibits the pathogenesis of several immune-mediated inflammatory diseases. This unusually broad salutary effect is thought to rely on the immunoregulatory actions of HO-1, exerted on innate and adaptive immune cells. According to this notion, HO-1 'dampens' innate and adaptive immune responses, limiting immune-mediated tissue injury and thus suppressing the pathogenesis of immune-mediated inflammatory diseases. We will argue that the salutary effects of HO-1 are also exerted via its cytoprotective action, which sustains tissue function and prevents unfettered immune activation by endogenous proinflammatory ligands released from injured cells.
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Therapeutic effects of heme oxygenase-1 on psoriasiform skin lesions in guinea pigs. Arch Dermatol Res 2009; 301:459-66. [DOI: 10.1007/s00403-009-0956-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2009] [Revised: 04/09/2009] [Accepted: 04/19/2009] [Indexed: 12/22/2022]
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Identification of crassin acetate as a new immunosuppressant triggering heme oxygenase-1 expression in dendritic cells. Blood 2009; 114:64-73. [PMID: 19401559 DOI: 10.1182/blood-2009-02-204297] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
By screening 720 natural compounds in a standard 2-way allogeneic mixed leukocyte reaction assay, we identified a potent immunosuppressive capacity of crassin acetate (CRA), a coral-derived cembrane diterpenoid. CRA efficiently inhibited allogeneic mixed leukocyte reaction as well as antigen-specific activation of CD4 T cells by bone marrow-derived dendritic cells (DCs). With regard to cellular targets, CRA suppressed not only mitogen-triggered T-cell activation, but also lipopolysaccharide-induced DC maturation, indicating dual functionality. Treatment with CRA at nontoxic doses induced heme oxygenase-1 (HO-1) mRNA/protein expression and HO-1 enzymatic activity in DCs, suggesting a unique mechanism of action. In fact, lipopolysaccharide-induced DC maturation was also inhibited by structurally unrelated compounds known to induce HO-1 expression or carbon monoxide (CO) release. Allergic contact hypersensitivity response to oxazolone and oxazolone-induced Langerhans cell migration from epidermis were both prevented almost completely by systemic administration of CRA. Not only do our results support the recent concept that HO-1/CO system negatively regulates immune responses, they also form both conceptual and technical frameworks for a more systematic, large-scale drug discovery effort to identify HO-1/CO-targeted immunosuppressants with dual target specificity.
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Heme oxygenase-1: from biology to therapeutic potential. Trends Mol Med 2009; 15:50-8. [DOI: 10.1016/j.molmed.2008.12.004] [Citation(s) in RCA: 185] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2008] [Revised: 12/02/2008] [Accepted: 12/02/2008] [Indexed: 01/24/2023]
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Pae HO, Ae Ha Y, Chai KY, Chung HT. Heme Oxygenase-1 Attenuates Contact Hypersensitivity Induced by 2,4-Dinitrofluorobenzene in Mice. Immunopharmacol Immunotoxicol 2008; 30:207-16. [DOI: 10.1080/08923970801946824] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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