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Coavoy-Sanchez SA, da Costa Marques LA, Costa SKP, Muscara MN. Role of Gasotransmitters in Inflammatory Edema. Antioxid Redox Signal 2024; 40:272-291. [PMID: 36974358 DOI: 10.1089/ars.2022.0089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Significance: Nitric oxide (NO), carbon monoxide (CO), and hydrogen sulfide (H2S) are, to date, the identified members of the gasotransmitter family, which consists of gaseous signaling molecules that play central roles in the regulation of a wide variety of physiological and pathophysiological processes, including inflammatory edema. Recent Advances: Recent studies show the potential anti-inflammatory and antiedematogenic effects of NO-, CO-, and H2S-donors in vivo. In general, it has been observed that the therapeutical effects of NO-donors are more relevant when administered at low doses at the onset of the inflammatory process. Regarding CO-donors, their antiedematogenic effects are mainly associated with inhibition of proinflammatory mediators (such as inducible NO synthase [iNOS]-derived NO), and the observed protective effects of H2S-donors seem to be mediated by reducing some proinflammatory enzyme activities. Critical Issues: The most recent investigations focus on the interactions among the gasotransmitters under different pathophysiological conditions. However, the biochemical/pharmacological nature of these interactions is neither general nor fully understood, although specifically dependent on the site where the inflammatory edema occurs. Future Directions: Considering the nature of the involved mechanisms, a deeper knowledge of the interactions among the gasotransmitters is mandatory. In addition, the development of new pharmacological tools, either donors or synthesis inhibitors of the three gasotransmitters, will certainly aid the basic investigations and open new strategies for the therapeutic treatment of inflammatory edema. Antioxid. Redox Signal. 40, 272-291.
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Affiliation(s)
| | | | - Soraia Katia Pereira Costa
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, Sao Paulo, Brazil
| | - Marcelo Nicolas Muscara
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, Sao Paulo, Brazil
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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: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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Bayo Jimenez MT, Frenis K, Hahad O, Steven S, Cohen G, Cuadrado A, Münzel T, Daiber A. Protective actions of nuclear factor erythroid 2-related factor 2 (NRF2) and downstream pathways against environmental stressors. Free Radic Biol Med 2022; 187:72-91. [PMID: 35613665 DOI: 10.1016/j.freeradbiomed.2022.05.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 04/23/2022] [Accepted: 05/19/2022] [Indexed: 12/14/2022]
Abstract
Environmental risk factors, including noise, air pollution, chemical agents, ultraviolet radiation (UVR) and mental stress have a considerable impact on human health. Oxidative stress and inflammation are key players in molecular pathomechanisms of environmental pollution and risk factors. In this review, we delineate the impact of environmental risk factors and the protective actions of the nuclear factor erythroid 2-related factor 2 (NRF2) in connection to oxidative stress and inflammation. We focus on well-established studies that demonstrate the protective actions of NRF2 and its downstream pathways against different environmental stressors. State-of-the-art mechanistic considerations on NRF2 signaling are discussed in detail, e.g. classical concepts like KEAP1 oxidation/electrophilic modification, NRF2 ubiquitination and degradation. Specific focus is also laid on NRF2-dependent heme oxygenase-1 induction with detailed presentation of the protective down-stream pathways of heme oxygenase-1, including interaction with BACH1 system. The significant impact of all environmental stressors on the circadian rhythm and the interactions of NRF2 with the circadian clock will also be considered here. A broad range of NRF2 activators is discussed in relation to environmental stressor-induced health side effects, thereby suggesting promising new mitigation strategies (e.g. by nutraceuticals) to fight the negative effects of the environment on our health.
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Affiliation(s)
- Maria Teresa Bayo Jimenez
- Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg-University, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Katie Frenis
- Department of Hematology and Oncology, Boston Children's Hospital and Harvard Medical School, 300 Longwood Ave, Boston, MA, 02115, USA
| | - Omar Hahad
- Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg-University, Langenbeckstraße 1, 55131, Mainz, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany; Leibniz Insitute for Resilience Research (LIR), Mainz, Germany
| | - Sebastian Steven
- Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg-University, Langenbeckstraße 1, 55131, Mainz, Germany
| | - Guy Cohen
- The Skin Research Institute, The Dead Sea and Arava Science Center, Masada, 86910, Israel; Ben Gurion University of the Negev, Eilat Campus, Eilat, 8855630, Israel
| | - Antonio Cuadrado
- Departamento de Bioquímica, Facultad de Medicina, Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), Instituto de Investigación Sanitaria La Paz (IdiPaz), Instituto de Investigaciones Biomédicas 'Alberto Sols' UAM-CSIC, Universidad Autónoma de Madrid, Madrid, Spain
| | - Thomas Münzel
- Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg-University, Langenbeckstraße 1, 55131, Mainz, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany.
| | - Andreas Daiber
- Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg-University, Langenbeckstraße 1, 55131, Mainz, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany.
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4
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Gwak SY, Kim SJ, Park J, Kim SH, Joe Y, Lee HN, Kim W, Muna IA, Na HK, Chung HT, Surh YJ. Potential Role of Heme Oxygenase-1 in the Resolution of Experimentally Induced Colitis through Regulation of Macrophage Polarization. Gut Liver 2021; 16:246-258. [PMID: 34737242 PMCID: PMC8924814 DOI: 10.5009/gnl210058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 05/20/2021] [Accepted: 05/24/2021] [Indexed: 12/01/2022] Open
Abstract
Background/Aims Heme oxygenase-1 (HO-1) plays a central role in cellular defense against inflammatory insults, and its induction in macrophages potentiates their efferocytic activity. In this study, we explored the potential role of macrophage HO-1 in the resolution of experimentally induced colitis. Methods To induce colitis, male C57BL/6 mice were treated with 2% dextran sulfate sodium (DSS) in the drinking water for 7 days. To investigate efferocytosis, apoptotic colon epithelial CCD 841 CoN cells were coincubated with bone marrow-derived macrophages (BMDMs). Results Administration of the HO-1 inhibitor zinc protoporphyrin IX (ZnPP) blunted the resolution of DSS-induced intestinal inflammation and expression of the proresolving M2 macrophage marker CD206. BMDMs treated with apoptotic colonic epithelial cells showed significantly elevated expression of HO-1 and its regulator Nrf2. Under the same experimental conditions, the proportion of CD206-expressing macrophages was also enhanced. ZnPP treatment abrogated the upregulation of CD206 expression in BMDMs engulfing apoptotic colonic epithelial cells. This result was verified with BMDMs isolated from HO-1-knockout mice. BMDMs, when stimulated with lipopolysaccharide, exhibited increased expression of CD86, a marker of M1 macrophages. Coculture of lipopolysaccharide-stimulated BMDMs with apoptotic colonic epithelial cell debris dampened the expression of CD86 as well as the pro-inflammatory cytokines in an HO-1-dependent manner. Genetic ablation as well as pharmacologic inhibition of HO-1 significantly reduced the proportion of efferocytic BMDMs expressing the scavenger receptor CD36. Conclusions HO-1 plays a key role in the resolution of experimentally induced colitis by modulating the polarization of macrophages.
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Affiliation(s)
- Shin-Young Gwak
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul, Korea
| | - Su-Jung Kim
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Jeongmin Park
- Department of Biological Sciences, University of Ulsan, Ulsan, Korea
| | - Seung Hyeon Kim
- Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Yeonsoo Joe
- Department of Biological Sciences, University of Ulsan, Ulsan, Korea
| | - Ha-Na Lee
- Laboratory of Immunology, Division of Biotechnology Review and Research-III, Office of Biotechnology Products, Center for Drug Evaluation and Research, Food and Drug Administration, Silver Spring, MD
| | - Wonki Kim
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Ishrat Aklima Muna
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea
| | - Hye-Kyung Na
- Department of Food Science and Biotechnology, College of Knowledge-Based Services Engineering, Sungshin Women's University, Seoul, Korea
| | - Hun Taeg Chung
- Department of Biological Sciences, University of Ulsan, Ulsan, Korea
| | - Young-Joon Surh
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul, Korea.,Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea.,Cancer Research Institute, Seoul National University, Seoul, Korea
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Ryter SW. Significance of Heme and Heme Degradation in the Pathogenesis of Acute Lung and Inflammatory Disorders. Int J Mol Sci 2021; 22:ijms22115509. [PMID: 34073678 PMCID: PMC8197128 DOI: 10.3390/ijms22115509] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 02/07/2023] Open
Abstract
The heme molecule serves as an essential prosthetic group for oxygen transport and storage proteins, as well for cellular metabolic enzyme activities, including those involved in mitochondrial respiration, xenobiotic metabolism, and antioxidant responses. Dysfunction in both heme synthesis and degradation pathways can promote human disease. Heme is a pro-oxidant via iron catalysis that can induce cytotoxicity and injury to the vascular endothelium. Additionally, heme can modulate inflammatory and immune system functions. Thus, the synthesis, utilization and turnover of heme are by necessity tightly regulated. The microsomal heme oxygenase (HO) system degrades heme to carbon monoxide (CO), iron, and biliverdin-IXα, that latter which is converted to bilirubin-IXα by biliverdin reductase. Heme degradation by heme oxygenase-1 (HO-1) is linked to cytoprotection via heme removal, as well as by activity-dependent end-product generation (i.e., bile pigments and CO), and other potential mechanisms. Therapeutic strategies targeting the heme/HO-1 pathway, including therapeutic modulation of heme levels, elevation (or inhibition) of HO-1 protein and activity, and application of CO donor compounds or gas show potential in inflammatory conditions including sepsis and pulmonary diseases.
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Shi J, Du SH, Yu JB, Zhang YF, He SM, Dong SA, Zhang Y, Wu LL, Li C, Li HB. Hydromorphone Protects against CO 2 Pneumoperitoneum-Induced Lung Injury via Heme Oxygenase-1-Regulated Mitochondrial Dynamics. Oxid Med Cell Longev 2021; 2021:9034376. [PMID: 33927798 DOI: 10.1155/2021/9034376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 03/04/2021] [Accepted: 03/19/2021] [Indexed: 01/01/2023]
Abstract
Various pharmacological agents and protective methods have been shown to reverse pneumoperitoneum-related lung injury, but identifying the best strategy is challenging. Herein, we employed lung tissues and blood samples from C57BL/6 mice with pneumoperitoneum-induced lung injury and blood samples from patients who received laparoscopic gynecological surgery to investigate the therapeutic role of hydromorphone in pneumoperitoneum-induced lung injury along with the underlying mechanism. We found that pretreatment with hydromorphone alleviated lung injury in mice that underwent CO2 insufflation, decreased the levels of myeloperoxidase (MPO), total oxidant status (TOS), and oxidative stress index (OSI), and increased total antioxidant status (TAS). In addition, after pretreatment with hydromorphone, upregulated HO-1 protein expression, reduced mitochondrial DNA content, and improved mitochondrial morphology and dynamics were observed in mice subjected to pneumoperitoneum. Immunohistochemical staining also verified that hydromorphone could increase the expression of HO-1 in lung tissues in mice subjected to CO2 pneumoperitoneum. Notably, in mice treated with HO-1-siRNA, the protective effects of hydromorphone against pneumoperitoneum-induced lung injury were abolished, and hydromorphone did not have additional protective effects on mitochondria. Additionally, in clinical patients who received laparoscopic gynecological surgery, pretreatment with hydromorphone resulted in lower serum levels of club cell secretory protein-16 (CC-16) and intercellular adhesion molecule-1 (ICAM-1), a lower prooxidant-antioxidant balance (PAB), and higher heme oxygenase-1 (HO-1) activity than morphine pretreatment. Collectively, our results suggest that hydromorphone protects against CO2 pneumoperitoneum-induced lung injury via HO-1-regulated mitochondrial dynamics and may be a promising strategy to treat CO2 pneumoperitoneum-induced lung injury.
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Costa DL, Amaral EP, Andrade BB, Sher A. Modulation of Inflammation and Immune Responses by Heme Oxygenase-1: Implications for Infection with Intracellular Pathogens. Antioxidants (Basel) 2020; 9:antiox9121205. [PMID: 33266044 PMCID: PMC7761188 DOI: 10.3390/antiox9121205] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 02/07/2023] Open
Abstract
Heme oxygenase-1 (HO-1) catalyzes the degradation of heme molecules releasing equimolar amounts of biliverdin, iron and carbon monoxide. Its expression is induced in response to stress signals such as reactive oxygen species and inflammatory mediators with antioxidant, anti-inflammatory and immunosuppressive consequences for the host. Interestingly, several intracellular pathogens responsible for major human diseases have been shown to be powerful inducers of HO-1 expression in both host cells and in vivo. Studies have shown that this HO-1 response can be either host detrimental by impairing pathogen control or host beneficial by limiting infection induced inflammation and tissue pathology. These properties make HO-1 an attractive target for host-directed therapy (HDT) of the diseases in question, many of which have been difficult to control using conventional antibiotic approaches. Here we review the mechanisms by which HO-1 expression is induced and how the enzyme regulates inflammatory and immune responses during infection with a number of different intracellular bacterial and protozoan pathogens highlighting mechanistic commonalities and differences with the goal of identifying targets for disease intervention.
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Affiliation(s)
- Diego L. Costa
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14049-900, São Paulo, Brazil
- Correspondence: ; Tel.: +55-16-3315-3061
| | - Eduardo P. Amaral
- Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA; (E.P.A.); (A.S.)
| | - Bruno B. Andrade
- Wellcome Centre for Infectious Disease Research in Africa, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town 7925, South Africa;
- Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador 40296-710, Bahia, Brazil
- Multinational Organization Network Sponsoring Translational and Epidemiological Research (MONSTER) Initiative, Salvador 40210-320, Bahia, Brazil
- Curso de Medicina, Faculdade de Tecnologia e Ciências (UniFTC), Salvador 41741-590, Bahia, Brazil
- Curso de Medicina, Universidade Salvador (UNIFACS), Laureate International Universities, Salvador 41770-235, Bahia, Brazil
- Escola Bahiana de Medicina e Saúde Pública (EBMSP), Salvador 40290-000, Bahia, Brazil
- Division of Infectious Diseases, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Alan Sher
- Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA; (E.P.A.); (A.S.)
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8
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Hahn D, Shin SH, Bae JS. Natural Antioxidant and Anti-Inflammatory Compounds in Foodstuff or Medicinal Herbs Inducing Heme Oxygenase-1 Expression. Antioxidants (Basel) 2020; 9:E1191. [PMID: 33260980 PMCID: PMC7761319 DOI: 10.3390/antiox9121191] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/20/2020] [Accepted: 11/24/2020] [Indexed: 02/06/2023] Open
Abstract
Heme oxygenase-1 (HO-1) is an inducible antioxidant enzyme that catalyzes heme group degradation. Decreased level of HO-1 is correlated with disease progression, and HO-1 induction suppresses development of metabolic and neurological disorders. Natural compounds with antioxidant activities have emerged as a rich source of HO-1 inducers with marginal toxicity. Here we discuss the therapeutic role of HO-1 in obesity, hypertension, atherosclerosis, Parkinson's disease and hepatic fibrosis, and present important signaling pathway components that lead to HO-1 expression. We provide an updated, comprehensive list of natural HO-1 inducers in foodstuff and medicinal herbs categorized by their chemical structures. Based on the continued research in HO-1 signaling pathways and rapid development of their natural inducers, HO-1 may serve as a preventive and therapeutic target for metabolic and neurological disorders.
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Affiliation(s)
- Dongyup Hahn
- School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu 41566, Korea;
- Department of Integrative Biology, Kyungpook National University, Daegu 41566, Korea
| | - Seung Ho Shin
- Department of Food and Nutrition, Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Korea;
| | - Jong-Sup Bae
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team, Kyungpook National University, Daegu 41566, Korea
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9
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Takahashi T, Misawa S, Suzuki S, Saeki N, Shinoda Y, Tsuneoka Y, Akimoto J, Fujiwara Y. Possible mechanism of heme oxygenase-1 expression in rat malignant meningioma KMY-J cells subjected to talaporfin sodium-mediated photodynamic therapy. Photodiagnosis Photodyn Ther 2020; 32:102009. [PMID: 32949789 DOI: 10.1016/j.pdpdt.2020.102009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/24/2020] [Accepted: 09/08/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND We previously demonstrated that heme oxygenase-1 (HO-1) induction may contribute to a protective response against photodynamic therapy (PDT) using talaporfin sodium (TS) in rat malignant meningioma KMY-J cells. In the present study, we examined the mechanism of HO-1 induction by PDT with TS (TS-PDT) in KMY-J cells. METHODS KMY-J cells were incubated with 25 μM TS for 2 h and then exposed to 664 nm diode laser irradiation at 1 J/cm2. The gene and protein expression levels of HO-1 and hypoxia-inducible factor-1α (HIF-1α) were determined by real-time RT-PCR and western blot analysis, respectively. Cell viability was measured using the cell counting kit-8 assay. RESULTS mRNA and protein levels of HO-1 in KMY-J cells were increased significantly at 3, 6, and 9 h after laser irradiation and the increased mRNA level of HO-1 was decreased by antioxidant N-acetyl cysteine treatment. The protein level of HIF-1α, which mediates transcriptional activation of the HO-1 gene, was increased significantly at 1 h after laser irradiation. Additionally, induction of mRNA expression of HO-1 by TS-PDT was diminished by HIF-1α inhibitor echinomycin. We also demonstrated that echinomycin significantly augmented the cytotoxic effect of TS-PDT. CONCLUSIONS Our findings indicate that TS-PDT may induce HO-1 expression via reactive oxygen species production and then HIF-1 pathway activation in KMY-J cells, and the HO-1 induction may cause attenuation of the therapeutic effect of TS-PDT.
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Affiliation(s)
- Tsutomu Takahashi
- Department of Environmental Health, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Suzuka Misawa
- Department of Environmental Health, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Saki Suzuki
- Department of Environmental Health, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Nanako Saeki
- Department of Environmental Health, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Yo Shinoda
- Department of Environmental Health, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Yayoi Tsuneoka
- Department of Environmental Health, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Jiro Akimoto
- Department of Neurosurgery, Tokyo Medical University, 6-7-1 Nishi-Shinjuku, Shinjuku, Tokyo 160-0023, Japan
| | - Yasuyuki Fujiwara
- Department of Environmental Health, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan.
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10
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Funes SC, Rios M, Fernández-Fierro A, Covián C, Bueno SM, Riedel CA, Mackern-Oberti JP, Kalergis AM. Naturally Derived Heme-Oxygenase 1 Inducers and Their Therapeutic Application to Immune-Mediated Diseases. Front Immunol 2020; 11:1467. [PMID: 32849503 PMCID: PMC7396584 DOI: 10.3389/fimmu.2020.01467] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 06/05/2020] [Indexed: 02/06/2023] Open
Abstract
Heme oxygenase (HO) is the primary antioxidant enzyme involved in heme group degradation. A variety of stimuli triggers the expression of the inducible HO-1 isoform, which is modulated by its substrate and cellular stressors. A major anti-inflammatory role has been assigned to the HO-1 activity. Therefore, in recent years HO-1 induction has been employed as an approach to treating several disorders displaying some immune alterations components, such as exacerbated inflammation or self-reactivity. Many natural compounds have shown to be effective inductors of HO-1 without cytotoxic effects; among them, most are chemicals present in plants used as food, flavoring, and medicine. Here we discuss some naturally derived compounds involved in HO-1 induction, their impact in the immune response modulation, and the beneficial effect in diverse autoimmune disorders. We conclude that the use of some compounds from natural sources able to induce HO-1 is an attractive lifestyle toward promoting human health. This review opens a new outlook on the investigation of naturally derived HO-1 inducers, mainly concerning autoimmunity.
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Affiliation(s)
- Samanta C Funes
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mariana Rios
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ayleen Fernández-Fierro
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Camila Covián
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susan M Bueno
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Claudia A Riedel
- Departamento de Ciencias Biológicas, Millenium Institute on Immunolgy and Immunotherapy, Facultad Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Juan Pablo Mackern-Oberti
- Instituto de Medicina y Biología Experimental de Cuyo, IMBECU CCT Mendoza- CONICET, Mendoza, Argentina.,Facultad de Ciencias Médicas, Instituto de Fisiología, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Alexis M Kalergis
- Departamento de Genética Molecular y Microbiología, Millenium Institute on Immunology and Immunotherapy, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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11
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Abstract
Oxidative stress has been linked to various disease states as well as physiological aging. The lungs are uniquely exposed to a highly oxidizing environment and have evolved several mechanisms to attenuate oxidative stress. Idiopathic pulmonary fibrosis (IPF) is a progressive age-related disorder that leads to architectural remodeling, impaired gas exchange, respiratory failure, and death. In this article, we discuss cellular sources of oxidant production, and antioxidant defenses, both enzymatic and nonenzymatic. We outline the current understanding of the pathogenesis of IPF and how oxidative stress contributes to fibrosis. Further, we link oxidative stress to the biology of aging that involves DNA damage responses, loss of proteostasis, and mitochondrial dysfunction. We discuss the recent findings on the role of reactive oxygen species (ROS) in specific fibrotic processes such as macrophage polarization and immunosenescence, alveolar epithelial cell apoptosis and senescence, myofibroblast differentiation and senescence, and alterations in the acellular extracellular matrix. Finally, we provide an overview of the current preclinical studies and clinical trials targeting oxidative stress in fibrosis and potential new strategies for future therapeutic interventions. © 2020 American Physiological Society. Compr Physiol 10:509-547, 2020.
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Affiliation(s)
- Eva Otoupalova
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Sam Smith
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Guangjie Cheng
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Victor J Thannickal
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
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Wu K, Chang W, Chen C, Kou YR. Expression of IL-1β, HMGB1, HO-1, and LDH in malignant and non-malignant pleural effusions. Respir Physiol Neurobiol 2020; 272:103330. [DOI: 10.1016/j.resp.2019.103330] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 10/15/2019] [Accepted: 10/15/2019] [Indexed: 11/22/2022]
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Badshah H, Ikram M, Ali W, Ahmad S, Hahm JR, Kim MO. Caffeine May Abrogate LPS-Induced Oxidative Stress and Neuroinflammation by Regulating Nrf2/TLR4 in Adult Mouse Brains. Biomolecules 2019; 9:biom9110719. [PMID: 31717470 PMCID: PMC6921022 DOI: 10.3390/biom9110719] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 11/06/2019] [Indexed: 12/05/2022] Open
Abstract
Herein, we assayed the antioxidant and anti-inflammatory potential of caffeine in a lipopolysaccharide (LPS)-injected mouse model of neurodegeneration and synaptic impairment. For this purpose, LPS was injected for two weeks on an alternate-day basis (250 µg/kg/i.p. for a total of seven doses), while caffeine was injected daily for four weeks (30 mg/kg/i.p/four weeks). According to our findings, there was a significant increase in the level of reactive oxygen species (ROS), as evaluated from the levels of lipid peroxidation (LPO) and ROS assays. Also, we evaluated the expression of nuclear factor erythroid-2-related factor 2 (Nrf2) and the enzyme hemeoxygenase 1 (HO-1) in the mouse groups and found reduced expression of Nrf2 and HO-1 in the LPS-treated mice brains, but they were markedly upregulated in the LPS + caffeine co-treated group. We also noted enhanced expression of toll-Like Receptor 4 (TLR4), phospho-nuclear factor kappa B (p-NF-kB), and phospho-c-Jun n-terminal kinase (p-JNK) in the LPS-treated mice brains, which was significantly reduced in the LPS + caffeine co-treated group. Moreover, we found enhanced expression of Bcl2-associated X, apoptosis regulator (Bax), and cleaved caspase-3, and reduced expression of B-cell lymphoma 2 (Bcl-2) in the LPS-treated group, which were markedly reversed in the LPS + caffeine co-treated group. Furthermore, we analyzed the expression of synaptic proteins in the treated groups and found a marked reduction in the expression of synaptic markers in the LPS-treated group; these were significantly upregulated in the LPS + caffeine co-treated group. In summary, we conclude that caffeine may inhibit LPS-induced oxidative stress, neuroinflammation, and synaptic dysfunction.
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Affiliation(s)
- Haroon Badshah
- Division of Life Sciences and Applied Life Science (BK 21plus), College of Natural Science, Gyeongsang National University, Jinju 52828, Korea; (H.B.); (M.I.); (W.A.); (S.A.)
| | - Muhammad Ikram
- Division of Life Sciences and Applied Life Science (BK 21plus), College of Natural Science, Gyeongsang National University, Jinju 52828, Korea; (H.B.); (M.I.); (W.A.); (S.A.)
| | - Waqar Ali
- Division of Life Sciences and Applied Life Science (BK 21plus), College of Natural Science, Gyeongsang National University, Jinju 52828, Korea; (H.B.); (M.I.); (W.A.); (S.A.)
| | - Sareer Ahmad
- Division of Life Sciences and Applied Life Science (BK 21plus), College of Natural Science, Gyeongsang National University, Jinju 52828, Korea; (H.B.); (M.I.); (W.A.); (S.A.)
| | - Jong Ryeal Hahm
- Department of Internal Medicine, College of Medicine, and Division of Endocrinology, Gyeongsang National University Hospital and Institute of Health Sciences, Gyeongsang National University, Jinju 52828, Korea;
| | - Myeong Ok Kim
- Division of Life Sciences and Applied Life Science (BK 21plus), College of Natural Science, Gyeongsang National University, Jinju 52828, Korea; (H.B.); (M.I.); (W.A.); (S.A.)
- Correspondence: ; Tel.: +82-55-772-1345; Fax: +82-55-772-2656
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Gáll T, Balla G, Balla J. Heme, Heme Oxygenase, and Endoplasmic Reticulum Stress-A New Insight into the Pathophysiology of Vascular Diseases. Int J Mol Sci 2019; 20:E3675. [PMID: 31357546 DOI: 10.3390/ijms20153675] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/23/2019] [Accepted: 07/24/2019] [Indexed: 02/06/2023] Open
Abstract
The prevalence of vascular disorders continues to rise worldwide. Parallel with that, new pathophysiological pathways have been discovered, providing possible remedies for prevention and therapy in vascular diseases. Growing evidence suggests that endoplasmic reticulum (ER) stress is involved in a number of vasculopathies, including atherosclerosis, vascular brain events, and diabetes. Heme, which is released from hemoglobin or other heme proteins, triggers various pathophysiological consequence, including heme stress as well as ER stress. The potentially toxic free heme is converted by heme oxygenases (HOs) into carbon monoxide (CO), iron, and biliverdin (BV), the latter of which is reduced to bilirubin (BR). Redox-active iron is oxidized and stored by ferritin, an iron sequestering protein which exhibits ferroxidase activity. In recent years, CO, BV, and BR have been shown to control cellular processes such as inflammation, apoptosis, and antioxidant defense. This review covers our current knowledge about how heme induced endoplasmic reticulum stress (HIERS) participates in the pathogenesis of vascular disorders and highlights recent discoveries in the molecular mechanisms of HO-mediated cytoprotection in heme stress and ER stress, as well as crosstalk between ER stress and HO-1. Furthermore, we focus on the translational potential of HIERS and heme oxygenase-1 (HO-1) in atherosclerosis, diabetes mellitus, and brain hemorrhage.
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Yamada KE, Eckhert CD. Boric Acid Activation of eIF2α and Nrf2 Is PERK Dependent: a Mechanism that Explains How Boron Prevents DNA Damage and Enhances Antioxidant Status. Biol Trace Elem Res 2019; 188:2-10. [PMID: 30196486 DOI: 10.1007/s12011-018-1498-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 08/28/2018] [Indexed: 02/06/2023]
Abstract
Boron is abundant in vegetables, nuts, legumes, and fruit and intake is associated with reduced risk of cancer and DNA damage and increased antioxidant status. Blood boric acid (BA) levels are approximately 10 μM BA in men at the mean US boron intake. Treatment of DU-145 human prostate cancer cells with 10 μM BA stimulates phosphorylation of elongation initiation factor 2α (eIF2α) at Ser51 leading to activation of the eIF2α/ATF4 pathway which activates the DNA damage-inducible protein GADD34. In the present study, we used MEF WT and MEF PERK (±) cells to test the hypothesis that BA-activated eIF2α phosphorylation requires protein kinase RNA-like endoplasmic reticulum kinase (PERK) and activates Nrf2 and the antioxidant response element (ARE). BA (10 μM) increased phosphorylation of eIF2α Ser51 in MEF WT cells at 1 h, but not in MEF Perk -/- cells exposed for as long as 6 h. GCN2 kinase-dependent phosphorylation of eIF2α Ser51 was activated in MEF PERK -/- cells by amino acid starvation. Nrf2 phosphorylation is PERK dependent and when activated is translocated from the cytoplasm to the nucleus where it acts as a transcription factor for ARE. DU-145 cells were treated with 10 μM BA and Nrf2 measured by immunofluorescence. Cytoplasmic Nrf2 was translocated to the nucleus at 1.5-2 h in DU-145 and MEF WT cells, but not MEF PERK -/- cells. Real-time PCR was used to measure mRNA levels of three ARE genes (HMOX-1, NQO1, and GCLC). Treatment with 10 μM BA increased the mRNA levels of all three genes at 1-4 h in DU-145 cells and HMOX1 and GCLC in MEF WT cells. These results extend the known boric acid signaling pathway to ARE-regulated genes. The BA signaling pathway can be expressed using the schematic [BA + cADPR → cADPR-BA → [[ER]i Ca2+↓] → 3 pathways: PERK/eIF2αP → pathways ATF4 and Nrf2; and [[ER]i Ca2+↓] → ER stress → ATF6 pathway. This signaling pathway provides a framework that links many of the molecular changes that underpin the biological effects of boron intake.
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Affiliation(s)
- Kristin E Yamada
- Interdepartmental Program in Molecular Toxicology, University of California, Los Angeles, 90095, CA, USA
| | - Curtis D Eckhert
- Interdepartmental Program in Molecular Toxicology, University of California, Los Angeles, 90095, CA, USA.
- Department of Environmental Health Sciences, Fielding School of Public Health, University of California, 650 Charles E. Young Dr., Los Angeles, CA, 90095, USA.
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Mohan S, Gupta D. Crosstalk of toll-like receptors signaling and Nrf2 pathway for regulation of inflammation. Biomed Pharmacother 2018; 108:1866-78. [PMID: 30372892 DOI: 10.1016/j.biopha.2018.10.019] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 09/09/2018] [Accepted: 10/03/2018] [Indexed: 12/20/2022] Open
Abstract
Inflammation as a second line of defense of innate immunity plays a crucial role in eliminating invading pathogens (bacteria, viruses, fungi as well as other parasites). The inflammatory response may also activate adaptive immune system involving lymphocytes to mount either antibody dependent or cell-mediated immune responses to clear pathogenic insult. However, if continued, the inflammatory processes may become uncontrolled culminating in cellular injury and tissue destruction, thereby manifesting itself in chronic form. The chronic inflammation has been associated with numerous human pathological conditions like allergies and autoimmune diseases, atherosclerosis, arthritis, Alzheimer's disease, cancer, obesity, type 2 diabetes, schizophrenia, neuro-degenerative diseases and numerous others. The dysregulated inflammatory process is associated with overproduction of free radicals leading to oxidative stress and activation of different cell signaling pathways. The regulation of inflammation by TLR signaling as well as Nrf2 pathways separately is widely documented. Since both these major signaling pathways modulate inflammation, they may crosstalk to bring about coordinated inflammatory responses. The linkage between TLR signaling and Nrf2-Keap1 pathway may serve as a bridge between immune regulation and oxidative stress responses through regulation of inflammation. Also, inflammation is reportedly responsible for the plethora of diseased conditions; a study of its regulation by targeting the TLR-Nrf2 cross-talks may also be beneficial for the development of therapeutic therapies or prophylactic treatments. Hence, present review focuses on the crosstalk between TLR signaling and Nrf2 pathway with respect to their role in modulation of inflammation in normal as well as pathologic conditions.
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Ozen M, Zhao H, Kalish F, Yang Y, Folkins A, Burd I, Wong RJ, Stevenson DK. Heme oxygenase-1 deficiency results in splenic T-cell dysregulation in offspring of mothers exposed to late gestational inflammation. Am J Reprod Immunol 2018; 79:e12829. [PMID: 29484761 DOI: 10.1111/aji.12829] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 01/31/2018] [Indexed: 12/28/2022] Open
Abstract
PROBLEM Infection during pregnancy can disrupt regulatory/effector immune system balance, resulting in adverse pregnancy and fetal-neonatal outcomes. Heme oxygenase-1 (HO-1) is a major regulatory enzyme in the immune system. We observed maternal immune response dysregulation during late gestational inflammation (LGI), which may be mediated by HO-1. Here, we extend these studies to examine the immune response of offspring. METHOD OF STUDY Pregnant wild-type (Wt) and HO-1 heterozygote (Het) dams were treated with lipopolysaccharide (LPS) or vehicle at E15.5. Pups' splenic immune cells were characterized using flow cytometry. RESULTS CD3+ CD4+ CD25+ (Tregs) and CD3+ CD8+ (Teffs) T cells in Wt and Het were similar in control neonates and increased with age. We showed not only age- but also genotype-specific and long-lasting T-cell dysregulation in pups after maternal LGI. The persistent immune dysregulation, mediated by HO-1 deficiency, was reflected as a decrease in Treg FoxP3 and CD3+ CD8+ T cells, and an increase in CD4+ /CD8+ T-cell and Treg/Teff ratios in Hets compared with Wt juvenile mice after maternal exposure to LGI. CONCLUSION Maternal exposure to LGI can result in dysregulation of splenic T cells in offspring, especially in those with HO-1 deficiency. We speculate that these immune alterations are the basis of adverse outcomes in neonates from mothers exposed to low-grade (subclinical) infections.
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Affiliation(s)
- Maide Ozen
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, CA, USA.,Department of Pediatrics, Johns Hopkins University, Baltimore, MD, USA
| | - Hui Zhao
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Flora Kalish
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Yang Yang
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Ann Folkins
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Irina Burd
- Department of Gynecology and Obstetrics, Integrated Research Center for Fetal Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Ronald J Wong
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - David K Stevenson
- Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Stanford, CA, USA
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19
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Ibáñez FJ, Farías MA, Retamal-Díaz A, Espinoza JA, Kalergis AM, González PA. Pharmacological Induction of Heme Oxygenase-1 Impairs Nuclear Accumulation of Herpes Simplex Virus Capsids upon Infection. Front Microbiol 2017; 8:2108. [PMID: 29163402 PMCID: PMC5671570 DOI: 10.3389/fmicb.2017.02108] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 10/16/2017] [Indexed: 12/18/2022] Open
Abstract
Heme oxygenase-1 (HO-1) is an inducible enzyme that is expressed in response to physical and chemical stresses, such as ultraviolet radiation, hyperthermia, hypoxia, reactive oxygen species (ROS), as well as cytokines, among others. Its activity can be positively modulated by cobalt protoporphyrin (CoPP) and negatively by tin protoporphirin (SnPP). Once induced, HO-1 degrades iron-containing heme into ferrous iron (Fe2+), carbon monoxide (CO) and biliverdin. Importantly, numerous products of HO-1 are cytoprotective with anti-apoptotic, anti-oxidant, anti-inflammatory, and anti-cancer effects. The products of HO-1 also display antiviral properties against several viruses, such as the human immunodeficiency virus (HIV), influenza, hepatitis B, hepatitis C, and Ebola virus. Here, we sought to assess the effect of modulating HO-1 activity over herpes simplex virus type 2 (HSV-2) infection in epithelial cells and neurons. There are no vaccines against HSV-2 and treatment options are scarce in the immunosuppressed, in which drug-resistant variants emerge. By using HSV strains that encode structural and non-structural forms of the green fluorescent protein (GFP), we found that pharmacological induction of HO-1 activity with CoPP significantly decreases virus plaque formation and the expression of virus-encoded genes in epithelial cells as determined by flow cytometry and western blot assays. CoPP treatment did not affect virus binding to the cell surface or entry into the cytoplasm, but rather downstream events in the virus infection cycle. Furthermore, we observed that treating cells with a CO-releasing molecule (CORM-2) recapitulated some of the anti-HSV effects elicited by CoPP. Taken together, these findings indicate that HO-1 activity interferes with the replication cycle of HSV and that its antiviral effects can be recapitulated by CO.
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Affiliation(s)
- Francisco J Ibáñez
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mónica A Farías
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Angello Retamal-Díaz
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Janyra A Espinoza
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M Kalergis
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Endocrinología, Escuela de Medicina, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.,Institut National de la Santé et de la Recherche Médicale U1064, Nantes, France
| | - Pablo A González
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
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Beavers WN, Rose KL, Galligan JJ, Mitchener MM, Rouzer CA, Tallman KA, Lamberson CR, Wang X, Hill S, Ivanova PT, Alex Brown H, Zhang B, Porter NA, Marnett LJ. Protein Modification by Endogenously Generated Lipid Electrophiles: Mitochondria as the Source and Target. ACS Chem Biol 2017; 12:2062-2069. [PMID: 28613820 PMCID: PMC6174696 DOI: 10.1021/acschembio.7b00480] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Determining the impact of lipid electrophile-mediated protein damage that occurs during oxidative stress requires a comprehensive analysis of electrophile targets adducted under pathophysiological conditions. Incorporation of ω-alkynyl linoleic acid into the phospholipids of macrophages prior to activation by Kdo2-lipid A, followed by protein extraction, click chemistry, and streptavidin affinity capture, enabled a systems-level survey of proteins adducted by lipid electrophiles generated endogenously during the inflammatory response. Results revealed a dramatic enrichment for membrane and mitochondrial proteins as targets for adduction. A marked decrease in adduction in the presence of MitoTEMPO demonstrated a primary role for mitochondrial superoxide in electrophile generation and indicated an important role for mitochondria as both a source and target of lipid electrophiles, a finding that has not been revealed by prior studies using exogenously provided electrophiles.
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Affiliation(s)
- William N. Beavers
- Departments of Chemistry, AB. Hancock Memorial Laboratory for Cancer Research, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Kristie L. Rose
- Departments of Biochemistry, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
- Departments of Vanderbilt Mass Spectrometry Research Center, Vanderbilt Institute for Chemical Biology, Vanderbilt Center in Molecular Toxicology, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - James J. Galligan
- Departments of Biochemistry, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Michelle M. Mitchener
- Departments of Chemistry, AB. Hancock Memorial Laboratory for Cancer Research, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Carol A. Rouzer
- Departments of Biochemistry, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Keri A. Tallman
- Departments of Chemistry, AB. Hancock Memorial Laboratory for Cancer Research, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Connor R. Lamberson
- Departments of Chemistry, AB. Hancock Memorial Laboratory for Cancer Research, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Xiaojing Wang
- Departments of Biomedical Informatics, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Salisha Hill
- Departments of Vanderbilt Mass Spectrometry Research Center, Vanderbilt Institute for Chemical Biology, Vanderbilt Center in Molecular Toxicology, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Pavlina T. Ivanova
- Departments of Pharmacology, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - H. Alex Brown
- Departments of Biochemistry, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
- Departments of Pharmacology, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Bing Zhang
- Departments of Biomedical Informatics, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Ned A. Porter
- Departments of Chemistry, AB. Hancock Memorial Laboratory for Cancer Research, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Lawrence J. Marnett
- Departments of Chemistry, AB. Hancock Memorial Laboratory for Cancer Research, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
- Departments of Biochemistry, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
- Departments of Pharmacology, Vanderbilt Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee 37232, United States
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Gomperts E, Belcher JD, Otterbein LE, Coates TD, Wood J, Skolnick BE, Levy H, Vercellotti GM. The role of carbon monoxide and heme oxygenase in the prevention of sickle cell disease vaso-occlusive crises. Am J Hematol 2017; 92:569-582. [PMID: 28378932 DOI: 10.1002/ajh.24750] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 03/28/2017] [Accepted: 03/29/2017] [Indexed: 12/15/2022]
Abstract
Sickle Cell Disease (SCD) is a painful, lifelong hemoglobinopathy inherited as a missense point mutation in the hemoglobin (Hb) beta-globin gene. This disease has significant impact on quality of life and mortality, thus a substantial medical need exists to reduce the vaso-occlusive crises which underlie the pathophysiology of the disease. The concept that a gaseous molecule may exert biological function has been well known for over one hundred years. Carbon monoxide (CO), although studied in SCD for over 50 years, has recently emerged as a powerful cytoprotective biological response modifier capable of regulating a host of physiologic and therapeutic processes that, at low concentrations, exerts key physiological functions in various models of tissue inflammation and injury. CO is physiologically generated by the metabolism of heme by the heme oxygenase enzymes and is measurable in blood. A substantial amount of preclinical and clinical data with CO have been generated, which provide compelling support for CO as a potential therapeutic in a number of pathological conditions. Data underlying the therapeutic mechanisms of CO, including in SCD, have been generated by a plethora of in vitro and preclinical studies including multiple SCD mouse models. These data show CO to have key signaling impacts on a host of metallo-enzymes as well as key modulating genes that in sum, result in significant anti-inflammatory, anti-oxidant and anti-apoptotic effects as well as vasodilation and anti-adhesion of cells to the endothelium resulting in preservation of vascular flow. CO may also have a role as an anti-polymerization HbS agent. In addition, considerable scientific data in the non-SCD literature provide evidence for a beneficial impact of CO on cerebrovascular complications, suggesting that in SCD, CO could potentially limit these highly problematic neurologic outcomes. Research is needed and hopefully forthcoming, to carefully elucidate the safety and benefits of this potential therapy across the age spectrum of patients impacted by the host of pathophysiological complications of this devastating disease.
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Affiliation(s)
- Edward Gomperts
- Hillhurst Biopharmaceuticals, Inc; 2029 Verdugo Blvd., #125 Montrose CA 91020 USA
| | - John D. Belcher
- University of Minnesota; 420 Delaware Street SE, MMC 480 Minneapolis MN 55455 USA
| | - Leo E. Otterbein
- Harvard Medical School; Beth Israel Deaconess Medical Center; 3 Blackfan Circle Center for Life Sciences, #630 Boston MA 02115 USA
| | - Thomas D. Coates
- Children's Hospital Los Angeles; University of Southern California; 4650 Sunset Boulevard MS #54 Los Angeles CA 90027 USA
| | - John Wood
- Children's Hospital Los Angeles; University of Southern California; 4650 Sunset Boulevard MS #54 Los Angeles CA 90027 USA
| | - Brett E. Skolnick
- Hillhurst Biopharmaceuticals, Inc; 2029 Verdugo Blvd., #125 Montrose CA 91020 USA
| | - Howard Levy
- Hillhurst Biopharmaceuticals, Inc; 2029 Verdugo Blvd., #125 Montrose CA 91020 USA
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22
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Moujalled D, Grubman A, Acevedo K, Yang S, Ke YD, Moujalled DM, Duncan C, Caragounis A, Perera ND, Turner BJ, Prudencio M, Petrucelli L, Blair I, Ittner LM, Crouch PJ, Liddell JR, White AR. TDP-43 mutations causing amyotrophic lateral sclerosis are associated with altered expression of RNA-binding protein hnRNP K and affect the Nrf2 antioxidant pathway. Hum Mol Genet 2017; 26:1732-1746. [PMID: 28334913 DOI: 10.1093/hmg/ddx093] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 03/07/2017] [Indexed: 12/12/2022] Open
Abstract
TAR DNA binding protein 43 (TDP-43) is a major disease-associated protein involved in the pathogenesis of amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration with ubiquitin-positive inclusions (FTLD-U). Our previous studies found a direct association between TDP-43 and heterogeneous nuclear ribonucleoprotein K (hnRNP K). In this study, utilizing ALS patient fibroblasts harboring a TDP-43M337V mutation and NSC-34 motor neuronal cell line expressing TDP-43Q331K mutation, we show that hnRNP K expression is impaired in urea soluble extracts from mutant TDP-43 cell models. This was confirmed in vivo using TDP-43Q331K and inducible TDP-43A315T murine ALS models. We further investigated the potential pathological effects of mutant TDP-43-mediated changes to hnRNP K metabolism by RNA binding immunoprecipitation analysis. hnRNP K protein was bound to antioxidant NFE2L2 transcripts encoding Nrf2 antioxidant transcription factor, with greater enrichment in TDP-43M337V patient fibroblasts compared to healthy controls. Subsequent gene expression profiling revealed an increase in downstream antioxidant transcript expression of Nrf2 signaling in the spinal cord of TDP-43Q331K mice compared to control counterparts, yet the corresponding protein expression was not up-regulated in transgenic mice. Despite the elevated expression of antioxidant transcripts, we observed impaired levels of glutathione (downstream Nrf2 antioxidant) in TDP-43M337V patient fibroblasts and astrocyte cultures from TDP-43Q331K mice, indicative of elevated oxidative stress and failure of some upregulated antioxidant genes to be translated into protein. Our findings indicate that further exploration of the interplay between hnRNP K (or other hnRNPs) and Nrf2-mediated antioxidant signaling is warranted and may be an important driver for motor neuron degeneration in ALS.
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Affiliation(s)
- Diane Moujalled
- Department of Pathology, The University of Melbourne, Victoria 3010, Australia
| | - Alexandra Grubman
- Department of Pathology, The University of Melbourne, Victoria 3010, Australia
| | - Karla Acevedo
- Department of Pathology, The University of Melbourne, Victoria 3010, Australia
| | - Shu Yang
- The Australian School of Advanced Medicine, Macquarie University, NSW 2109, Australia
| | - Yazi D Ke
- Dementia Research Unit, Department of Anatomy, Faculty of Medicine, School of Medical Sciences, UNSW Australia, Sydney, NSW 2052, Australia
| | - Donia M Moujalled
- Australian Centre for Blood Diseases (ACBD), The Alfred Centre, Victoria 3004, Australia
| | - Clare Duncan
- Florey Institute of Neuroscience and Mental Health, Parkville, Victoria 3010, Australia
| | | | - Nirma D Perera
- Florey Institute of Neuroscience and Mental Health, Parkville, Victoria 3010, Australia
| | - Bradley J Turner
- Florey Institute of Neuroscience and Mental Health, Parkville, Victoria 3010, Australia
| | | | | | - Ian Blair
- The Australian School of Advanced Medicine, Macquarie University, NSW 2109, Australia
| | - Lars M Ittner
- Dementia Research Unit, Department of Anatomy, Faculty of Medicine, School of Medical Sciences, UNSW Australia, Sydney, NSW 2052, Australia
| | - Peter J Crouch
- Department of Pathology, The University of Melbourne, Victoria 3010, Australia
- Florey Institute of Neuroscience and Mental Health, Parkville, Victoria 3010, Australia
| | - Jeffrey R Liddell
- Department of Pathology, The University of Melbourne, Victoria 3010, Australia
| | - Anthony R White
- Department of Pathology, The University of Melbourne, Victoria 3010, Australia
- Florey Institute of Neuroscience and Mental Health, Parkville, Victoria 3010, Australia
- Berghofer Medical Research Institute, Herston, Queensland 4006, Australia
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Angin M, Fathi A, King M, Ledoux MB, Piechocka-Trocha A, Altfeld M, Addo MM. Acute HIV-1 infection is associated with increased plasma levels of heme oxygenase-1 and presence of heme oxygenase-1-specific regulatory T cells. AIDS 2017; 31:635-41. [PMID: 28060008 DOI: 10.1097/QAD.0000000000001390] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE Heme oxygenase-1 (HO-1) is an inducible stress response protein with potent anti-inflammatory activity and recent data suggest a potentially beneficial role in HIV pathogenesis. We investigated the impact of HO-1 and a novel subset of HO-1-specific CD8 regulatory T cells on virus-specific T-cell immunity in HIV-1-infected individuals. METHODS HO-1 protein levels were quantified in plasma from individuals at different stages of HIV-1 disease and longitudinally following primary HIV infection. HO-1-specific CD8 T cells were investigated by flow cytometry using human leukocyte antigen (HLA) class I pentamers. Flow-sorted HO-1-specific CD8 T cells were cultured and tested for suppressive activity on HIV-1-specific cytotoxic T-cell clones clones. HO-1 gene expression was determined in sorted peripheral blood mononuclear cell (PBMC) subsets from individuals with acute HIV-1 infection. RESULTS HO-1 plasma levels were significantly increased in HIV-1 infection, with the highest levels in individuals with acute HIV-1 infection, and gradually declined over time. The frequency of CD8 T cells specific for HO-1 was elevated in study participants with primary HIV-1 infection and flow-sorted HO-1-specific CD8 T cells were capable of suppressing HIV-1-specific lysis of cytotoxic T-cell clones clones. HO-1 gene expression was upregulated in multiple immune cell subsets during acute HIV-1 infection and HO-1 overexpression modulated anti-HIV immunity in vitro. CONCLUSION Our data suggest that HO-1 is induced during acute HIV-1 infection, likely mediating anti-inflammatory effects and driving expansion of HO-1-specific CD8 regulatory T cells capable of suppressing HIV-1-specific immune responses in vitro. The investigation of HO-1 and the novel CD8 regulatory cell type described here provide further insight into immune regulation in HIV-1 infection and may hold potential for future immunotherapeutic intervention.
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Takahashi Y, Murakami H, Akiyama Y, Katoh Y, Oma Y, Nishijima H, Shibahara KI, Igarashi K, Harata M. Actin Family Proteins in the Human INO80 Chromatin Remodeling Complex Exhibit Functional Roles in the Induction of Heme Oxygenase-1 with Hemin. Front Genet 2017; 8:17. [PMID: 28270832 PMCID: PMC5318382 DOI: 10.3389/fgene.2017.00017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 02/06/2017] [Indexed: 11/13/2022] Open
Abstract
Nuclear actin family proteins, comprising of actin and actin-related proteins (Arps), are essential functional components of the multiple chromatin remodeling complexes. The INO80 chromatin remodeling complex, which is evolutionarily conserved and has roles in transcription, DNA replication and repair, consists of actin and actin-related proteins Arp4, Arp5, and Arp8. We generated Arp5 knockout (KO) and Arp8 KO cells from the human Nalm-6 pre-B cell line and used these KO cells to examine the roles of Arp5 and Arp8 in the transcriptional regulation mediated by the INO80 complex. In both of Arp5 KO and Arp8 KO cells, the oxidative stress-induced expression of HMOX1 gene, encoding for heme oxygenase-1 (HO-1), was significantly impaired. Consistent with these observations, chromatin immunoprecipitation (ChIP) assay revealed that oxidative stress caused an increase in the binding of the INO80 complex to the regulatory sites of HMOX1 in wild-type cells. The binding of INO80 complex to chromatin was reduced in Arp8 KO cells compared to that in the wild-type cells. On the other hand, the binding of INO80 complex to chromatin in Arp5 KO cells was similar to that in the wild-type cells even under the oxidative stress condition. However, both remodeling of chromatin at the HMOX1 regulatory sites and binding of a transcriptional activator to these sites were impaired in Arp5 KO cells, indicating that Arp5 is required for the activation of the INO80 complex. Collectively, these results suggested that these nuclear Arps play indispensable roles in the function of the INO80 chromatin remodeling complex.
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Affiliation(s)
- Yuichiro Takahashi
- Laboratory of Molecular Biology, Graduate School of Agricultural Science, Tohoku University Sendai, Japan
| | - Hirokazu Murakami
- Laboratory of Molecular Biology, Graduate School of Agricultural Science, Tohoku University Sendai, Japan
| | - Yusuke Akiyama
- Laboratory of Molecular Biology, Graduate School of Agricultural Science, Tohoku University Sendai, Japan
| | - Yasutake Katoh
- Department of Biochemistry, Graduate School of Medicine, Tohoku University Sendai, Japan
| | - Yukako Oma
- Laboratory of Molecular Biology, Graduate School of Agricultural Science, Tohoku University Sendai, Japan
| | - Hitoshi Nishijima
- Department of Integrated Genetics, National Institute of GeneticsMishima, Japan; Division of Molecular Immunology, Institute of Advanced Medical Sciences, Tokushima UniversityTokushima, Japan
| | - Kei-Ichi Shibahara
- Department of Integrated Genetics, National Institute of Genetics Mishima, Japan
| | - Kazuhiko Igarashi
- Department of Biochemistry, Graduate School of Medicine, Tohoku UniversitySendai, Japan; Japan Agency for Medical Research and DevelopmentTokyo, Japan
| | - Masahiko Harata
- Laboratory of Molecular Biology, Graduate School of Agricultural Science, Tohoku University Sendai, Japan
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Borges PV, Moret KH, Raghavendra NM, Maramaldo Costa TE, Monteiro AP, Carneiro AB, Pacheco P, Temerozo JR, Bou-Habib DC, das Graças Henriques M, Penido C. Protective effect of gedunin on TLR-mediated inflammation by modulation of inflammasome activation and cytokine production: Evidence of a multitarget compound. Pharmacol Res 2017; 115:65-77. [DOI: 10.1016/j.phrs.2016.09.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 08/09/2016] [Accepted: 09/14/2016] [Indexed: 01/09/2023]
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Kuo PC, Brown DA, Scofield BA, Yu IC, Chang FL, Wang PY, Yen JH. 3H-1,2-dithiole-3-thione as a novel therapeutic agent for the treatment of experimental autoimmune encephalomyelitis. Brain Behav Immun 2016; 57:173-86. [PMID: 27013356 DOI: 10.1016/j.bbi.2016.03.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 02/29/2016] [Accepted: 03/19/2016] [Indexed: 12/20/2022] Open
Abstract
3H-1,2-dithiole-3-thione (D3T), the simplest member of the sulfur-containing dithiolethiones, is found in cruciferous vegetables, and has been previously reported to be a potent inducer of antioxidant genes and glutathione biosynthesis by activation of the transcription factor Nrf2. D3T is a cancer chemopreventive agent and possesses anti-inflammatory properties. Although D3T has been shown to protect against neoplasia, the effect of D3T in the autoimmune inflammatory disease multiple sclerosis/experimental autoimmune encephalomyelitis (EAE) is unknown. The present study is the first report of the therapeutic effect of D3T in EAE. Our results show D3T, administered post immunization, not only delays disease onset but also dramatically reduces disease severity in EAE. Strikingly, D3T, administered post disease onset of EAE, effectively prevents disease progression and exacerbation. Mechanistic studies revealed that D3T suppresses dendritic cell activation and cytokine production, inhibits pathogenic Th1 and Th17 differentiation, represses microglia activation and inflammatory cytokine expression, and promotes microglia phase II enzyme induction. In summary, these results indicate that D3T affects both innate and adaptive immune cells, and the protective effect of D3T in EAE might be attributed to its effects on modulating dendritic cell and microglia activation and pathogenic Th1/Th17 cell differentiation.
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Ren C, Qi J, Li W, Zhang J. The effect of moderate-intensity exercise on the expression of HO-1 mRNA and activity of HO in cardiac and vascular smooth muscle of spontaneously hypertensive rats. Can J Physiol Pharmacol 2016; 94:448-54. [DOI: 10.1139/cjpp-2015-0122] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The objective of this study was to observe the effects of moderate-intensity training on the activity of heme oxygenase (HO) and expression of HO-1 mRNA in the aorta and the cardiac muscle of spontaneously hypertensive rats (SHRs). After 9 weeks of swimming exercise, the activity of HO and expression of HO-1 mRNA in the SHRs were measured. The resting blood pressure in the exercise group was increased by 1.7% (P > 0.05), whereas it was significantly elevated by 10.3% (P < 0.01) in the SHR rats. Compared with animals in the control and sedentary groups, the expression level of HO-1 mRNA of aorta and cardiac muscle in the exercise group was significantly enhanced (P < 0.01). The HO activity and the content of plasma carbon monoxide (CO) in the sedentary group were dramatically decreased (P < 0.05 and P < 0.01, respectively) compared with the control group. HO activity and content of plasma CO in the exercise group were significantly higher compared with those in the sedentary group (P < 0.05 and P < 0.01, respectively). The HO/CO metabolic pathway might be involved in the regulation of blood pressure of the SHR models.
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Affiliation(s)
- Cailing Ren
- Rehabilitation College of Gannan Medical University, Ganzhou 341000, Jiangxi Province, China
| | - Jie Qi
- Shanghai Normal University Physical Education College, No. 100 in Guilin Road, Xuhui District, Shanghai 200234, China
| | - Wanwei Li
- Public Health Department of Weifang Medical College, Weifang 261000, Shandong Province, China
| | - Jun Zhang
- Shanghai Normal University Physical Education College, No. 100 in Guilin Road, Xuhui District, Shanghai 200234, China
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Koike A, Minamiguchi I, Fujimori K, Amano F. Nitric oxide is an important regulator of heme oxygenase-1 expression in the lipopolysaccharide and interferon-γ-treated murine macrophage-like cell line J774.1/JA-4. Biol Pharm Bull 2015; 38:7-16. [PMID: 25744452 DOI: 10.1248/bpb.b14-00405] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Heme oxygenase-1 (HO-1) catabolizes the degradation of heme into bilirubin, carbon monoxide, and iron ions. The HO-1 products provide antioxidant cytoprotection in addition to having potent antiinflammatory and immunomodulatory functions. HO-1 is induced by its substrate heme and environmental factors including oxidative and heat stresses. Although previous studies reported that lipopolysaccharide (LPS) induced the expression of both the HO-1 gene and its protein in macrophages, the major regulators of HO-1 expression remain unknown. To identify these regulators, we used two types of cell, the murine macrophage-like cell line J774.1/JA-4 and its LPS-resistant mutant, LPS1916. Based on a comparison of the results obtained with these cells, we found that nitric oxide (NO) was closely linked to the induction of HO-1. Real-time polymerase chain reaction (PCR) showed that the time course for inducible HO-1 mRNA by LPS or LPS+interferon (IFN)-γ was similar to that for inducible NO synthase (iNOS) mRNA. Furthermore, the expression of iNOS mRNA and protein increased earlier than that of HO-1 mRNA and protein. N-Nitro-L-arginine methyl ester, an NO synthase inhibitor, reduced both HO-1 expression and NO production in LPS+IFN-γ-treated JA-4 cells. Furthermore, NOC-12, an NO donor, significantly induced HO-1 expression not only in JA-4 but also in LPS1916 cells. Reactive oxygen species (ROS) scavengers, such as superoxide dismutase and catalase, did not affect HO-1 protein expression in LPS+IFN-γ-treated JA-4 cells. These results suggest that, among ROS, NO plays an important role in HO-1 induction in activated macrophages treated with LPS+IFN-γ.
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Affiliation(s)
- Atsushi Koike
- Laboratory of Biodefense & Regulation, Osaka University of Pharmaceutical Sciences
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Canavese M, Dottorini T, Crisanti A. VEGF and LPS synergistically silence inflammatory response to Plasmodium berghei infection and protect against cerebral malaria. Pathog Glob Health 2015; 109:255-65. [PMID: 26392042 DOI: 10.1179/2047773215y.0000000018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Malaria infection induces, alongside endothelial damage and obstruction hypoxia, a potent inflammatory response similar to that observed in other systemic diseases caused by bacteria and viruses. Accordingly, it is increasingly recognised that cerebral malaria (CM), the most severe and life threatening complication of Plasmodium falciparum infection, bears a number of similarities with sepsis, an often fatal condition associated with a misregulated inflammatory response triggered by systemic microbial infections. Using a Plasmodium berghei ANKA mouse model, histology, immunohistochemistry and gene expression analysis, we showed that lipopolysaccharide S (LPS), at doses that normally induce inflammation tolerance, protects P. berghei infected mice against experimental CM (ECM). Vascular endothelial growth factor (VEGF) preserved blood vessel integrity, and the combination with LPS resulted in a strong synergistic effect. Treated mice did not develop ECM, showed a prolonged survival and failed to develop a significant inflammatory response and splenomegaly in spite of normal parasite loads. The protective role of VEGF was further confirmed by the observation that the treatment of P. berghei infected C57BL/6 and Balb/c mice with the VEGF receptor inhibitor axitinib exacerbates cerebral pathology and aggravates the course of infection. Infected mice treated with VEGF and LPS showed an induction of the anti-inflammatory genes Nrf2 and HO-1 and a suppression to basal levels of the genes IFN-γ and TNF-α. These results provide the rationale for developing new therapeutic approaches against CM and shed new light on how the inflammatory process can be modulated in the presence of systemic infectious diseases.
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Borges PV, Moret KH, Maya-Monteiro CM, Souza-Silva F, Alves CR, Batista PR, Caffarena ER, Pacheco P, Henriques MDG, Penido C. Gedunin Binds to Myeloid Differentiation Protein 2 and Impairs Lipopolysaccharide-Induced Toll-Like Receptor 4 Signaling in Macrophages. Mol Pharmacol 2015; 88:949-61. [PMID: 26330549 DOI: 10.1124/mol.115.098970] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 08/26/2015] [Indexed: 12/16/2022] Open
Abstract
Recognition of bacterial lipopolysaccharide (LPS) by innate immune system is mediated by the cluster of differentiation 14/Toll-like receptor 4/myeloid differentiation protein 2 (MD-2) complex. In this study, we investigated the modulatory effect of gedunin, a limonoid from species of the Meliaceae family described as a heat shock protein Hsp90 inhibitor, on LPS-induced response in immortalized murine macrophages. The pretreatment of wild-type (WT) macrophages with gedunin (0.01-100 µM, noncytotoxic concentrations) inhibited LPS (50 ng/ml)-induced calcium influx, tumor necrosis factor-α, and nitric oxide production in a concentration-dependent manner. The selective effect of gedunin on MyD88-adapter-like/myeloid differentiation primary response 88- and TRIF-related adaptor molecule/TIR domain-containing adapter-inducing interferon-β-dependent signaling pathways was further investigated. The pretreatment of WT, TIR domain-containing adapter-inducing interferon-β knockout, and MyD88 adapter-like knockout macrophages with gedunin (10 µM) significantly inhibited LPS (50 ng/ml)-induced tumor necrosis factor-α and interleukin-6 production, at 6 hours and 24 hours, suggesting that gedunin modulates a common event between both signaling pathways. Furthermore, gedunin (10 µM) inhibited LPS-induced prostaglandin E2 production, cyclooxygenase-2 expression, and nuclear factor κB translocation into the nucleus of WT macrophages, demonstrating a wide-range effect of this chemical compound. In addition to the ability to inhibit LPS-induced proinflammatory mediators, gedunin also triggered anti-inflammatory factors interleukin-10, heme oxygenase-1, and Hsp70 in macrophages stimulated or not with LPS. In silico modeling studies revealed that gedunin efficiently docked into the MD-2 LPS binding site, a phenomenon further confirmed by surface plasmon resonance. Our results reveal that, in addition to Hsp90 modulation, gedunin acts as a competitive inhibitor of LPS, blocking the formation of the Toll-like receptor 4/MD-2/LPS complex.
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Affiliation(s)
- Perla Villani Borges
- Laboratory of Applied Pharmacology, Institute of Drug Technology (P.V.B., K.H.M., P.P., M.d.G.H., C.P.), Computational Science Program, Computational Biophysics and Molecular Modeling Group (P.R.B.; E.R.C.), and Center for Technological Development in Health (M.G.H., C.P.), Oswaldo Cruz Foundation, Rio de Janeiro, Brazil; and Laborator of Immunopharmacology (C.M.M.-M.) and Molecular Biology and Endemic Diseases (F.S.S., C.R.A.), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Katelim Hottz Moret
- Laboratory of Applied Pharmacology, Institute of Drug Technology (P.V.B., K.H.M., P.P., M.d.G.H., C.P.), Computational Science Program, Computational Biophysics and Molecular Modeling Group (P.R.B.; E.R.C.), and Center for Technological Development in Health (M.G.H., C.P.), Oswaldo Cruz Foundation, Rio de Janeiro, Brazil; and Laborator of Immunopharmacology (C.M.M.-M.) and Molecular Biology and Endemic Diseases (F.S.S., C.R.A.), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Clarissa Menezes Maya-Monteiro
- Laboratory of Applied Pharmacology, Institute of Drug Technology (P.V.B., K.H.M., P.P., M.d.G.H., C.P.), Computational Science Program, Computational Biophysics and Molecular Modeling Group (P.R.B.; E.R.C.), and Center for Technological Development in Health (M.G.H., C.P.), Oswaldo Cruz Foundation, Rio de Janeiro, Brazil; and Laborator of Immunopharmacology (C.M.M.-M.) and Molecular Biology and Endemic Diseases (F.S.S., C.R.A.), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Franklin Souza-Silva
- Laboratory of Applied Pharmacology, Institute of Drug Technology (P.V.B., K.H.M., P.P., M.d.G.H., C.P.), Computational Science Program, Computational Biophysics and Molecular Modeling Group (P.R.B.; E.R.C.), and Center for Technological Development in Health (M.G.H., C.P.), Oswaldo Cruz Foundation, Rio de Janeiro, Brazil; and Laborator of Immunopharmacology (C.M.M.-M.) and Molecular Biology and Endemic Diseases (F.S.S., C.R.A.), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Carlos Roberto Alves
- Laboratory of Applied Pharmacology, Institute of Drug Technology (P.V.B., K.H.M., P.P., M.d.G.H., C.P.), Computational Science Program, Computational Biophysics and Molecular Modeling Group (P.R.B.; E.R.C.), and Center for Technological Development in Health (M.G.H., C.P.), Oswaldo Cruz Foundation, Rio de Janeiro, Brazil; and Laborator of Immunopharmacology (C.M.M.-M.) and Molecular Biology and Endemic Diseases (F.S.S., C.R.A.), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Paulo Ricardo Batista
- Laboratory of Applied Pharmacology, Institute of Drug Technology (P.V.B., K.H.M., P.P., M.d.G.H., C.P.), Computational Science Program, Computational Biophysics and Molecular Modeling Group (P.R.B.; E.R.C.), and Center for Technological Development in Health (M.G.H., C.P.), Oswaldo Cruz Foundation, Rio de Janeiro, Brazil; and Laborator of Immunopharmacology (C.M.M.-M.) and Molecular Biology and Endemic Diseases (F.S.S., C.R.A.), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Ernesto Raúl Caffarena
- Laboratory of Applied Pharmacology, Institute of Drug Technology (P.V.B., K.H.M., P.P., M.d.G.H., C.P.), Computational Science Program, Computational Biophysics and Molecular Modeling Group (P.R.B.; E.R.C.), and Center for Technological Development in Health (M.G.H., C.P.), Oswaldo Cruz Foundation, Rio de Janeiro, Brazil; and Laborator of Immunopharmacology (C.M.M.-M.) and Molecular Biology and Endemic Diseases (F.S.S., C.R.A.), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Patrícia Pacheco
- Laboratory of Applied Pharmacology, Institute of Drug Technology (P.V.B., K.H.M., P.P., M.d.G.H., C.P.), Computational Science Program, Computational Biophysics and Molecular Modeling Group (P.R.B.; E.R.C.), and Center for Technological Development in Health (M.G.H., C.P.), Oswaldo Cruz Foundation, Rio de Janeiro, Brazil; and Laborator of Immunopharmacology (C.M.M.-M.) and Molecular Biology and Endemic Diseases (F.S.S., C.R.A.), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Maria das Graças Henriques
- Laboratory of Applied Pharmacology, Institute of Drug Technology (P.V.B., K.H.M., P.P., M.d.G.H., C.P.), Computational Science Program, Computational Biophysics and Molecular Modeling Group (P.R.B.; E.R.C.), and Center for Technological Development in Health (M.G.H., C.P.), Oswaldo Cruz Foundation, Rio de Janeiro, Brazil; and Laborator of Immunopharmacology (C.M.M.-M.) and Molecular Biology and Endemic Diseases (F.S.S., C.R.A.), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Carmen Penido
- Laboratory of Applied Pharmacology, Institute of Drug Technology (P.V.B., K.H.M., P.P., M.d.G.H., C.P.), Computational Science Program, Computational Biophysics and Molecular Modeling Group (P.R.B.; E.R.C.), and Center for Technological Development in Health (M.G.H., C.P.), Oswaldo Cruz Foundation, Rio de Janeiro, Brazil; and Laborator of Immunopharmacology (C.M.M.-M.) and Molecular Biology and Endemic Diseases (F.S.S., C.R.A.), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
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Ambegaokar SS, Kolson DL. Heme oxygenase-1 dysregulation in the brain: implications for HIV-associated neurocognitive disorders. Curr HIV Res 2015; 12:174-88. [PMID: 24862327 PMCID: PMC4155834 DOI: 10.2174/1570162x12666140526122709] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 01/20/2014] [Accepted: 01/27/2014] [Indexed: 12/17/2022]
Abstract
Heme oxygenase-1 (HO-1) is a highly inducible and ubiquitous cellular enzyme that subserves cytoprotective responses to toxic insults, including inflammation and oxidative stress. In neurodegenerative diseases such as Alzheimer’s disease, Parkinson’s disease and multiple sclerosis, HO-1 expression is increased, presumably reflecting an endogenous neuroprotective response against ongoing cellular injury. In contrast, we have found that in human immunodeficiency virus (HIV) infection of the brain, which is also associated with inflammation, oxidative stress and neurodegeneration, HO-1 expression is decreased, likely reflecting a unique role for HO-1 deficiency in neurodegeneration pathways activated by HIV infection. We have also shown that HO-1 expression is significantly suppressed by HIV replication in cultured macrophages which represent the primary cellular reservoir for HIV in the brain. HO-1 deficiency is associated with release of neurotoxic levels of glutamate from both HIV-infected and immune-activated macrophages; this glutamate-mediated neurotoxicity is suppressed by pharmacological induction of HO-1 expression in the macrophages. Thus, HO-1 induction could be a therapeutic strategy for neuroprotection against HIV infection and other neuroinflammatory brain diseases. Here, we review various stimuli and signaling pathways regulating HO-1 expression in macrophages, which could promote neuronal survival through HO-1-modulation of endogenous antioxidant and immune modulatory pathways, thus limiting the oxidative stress that can promote HIV disease progression in the CNS. The use of pharmacological inducers of endogenous HO-1 expression as potential adjunctive neuroprotective therapeutics in HIV infection is also discussed.
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Affiliation(s)
| | - Dennis L Kolson
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, 280 Clinical Research Building, 415 Curie Blvd., Philadelphia, PA 19104, USA.
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Abstract
Intestinal ischemia-reperfusion (I-R) injury is a complex, multifactorial, pathophysiological process with high morbidity and mortality, leading to serious difficulty in treatment. The mechanisms involved in the pathogenesis of intestinal I-R injury have been examined in detail and various therapeutic approaches for intestinal I-R injury have been developed; however, existing circumstances have not yet led to a dramatic change of treatment. Carbon monoxide (CO), one of the by-products of heme degradation by heme oxygenase (HO), is considered as a candidate for treatment of intestinal I-R injury and indeed HO-1-derived endogenous CO and exogenous CO play a pivotal role in protecting the gastrointestinal tract from intestinal I-R injury. Interestingly, anti-inflammatory effects of CO have been elucidated sufficiently in various cell types including endothelial cells, circulating leukocytes, macrophages, lymphocytes, epithelial cells, fibroblast, organ-specific cells, and immune-presenting cells. In this review, we herein focus on the therapeutic roles of CO in intestinal I-R injury and the cell-specific anti-inflammatory effects of CO, clearly demonstrating future therapeutic strategies of CO for treating intestine I-R injury.
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Affiliation(s)
- Kazuhiro Katada
- Molecular Gastroenterology and Hepatology, Graduate School of Medial Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Suk Lee D, Kim BN, Lim S, Lee J, Kim J, Jeong JG, Kim S. Effective suppression of nitric oxide production by HX106N through transcriptional control of heme oxygenase-1. Exp Biol Med (Maywood) 2015; 240:1136-46. [PMID: 25605059 DOI: 10.1177/1535370214567612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 11/25/2014] [Indexed: 11/16/2022] Open
Abstract
Heme oxygenase-1 (HO-1) has been suggested to be a key neuroprotective enzyme because of its widespread distribution in the brain as well as its strong antioxidative effects. HX106N, a water-soluble botanical formulation, has previously been demonstrated to prevent amyloid β-induced memory impairment and oxidative stress in mice by upregulating HO-1 levels. In this study, the underlying molecular mechanisms of HX106N-induced HO-1 expression were investigated using BV-2 cells, a murine microglial cell line, and primary microglia. Treatment with HX106N induced the expression of HO-1 at the transcriptional level through the stress-responsive element-containing enhancer present in the ho-1 promoter. Nuclear factor E2-related factor 2 (Nrf2) was activated in cells treated with HX106N. The results from knockdown assay showed that small interfering RNA of Nrf2 attenuated HX106N-mediated HO-1 expression. Pharmacological inhibitors of p38 and JNK mitogen-activated protein kinases suppressed the HX106N-mediated induction of HO-1. The NF-κB signaling pathway was activated by HX106N and played a role in HX106N-induced HO-1 expression. Furthermore, HO-1 and one of its by-products during the enzymatic degradation of heme, CO, were found to be involved in HX106N-mediated suppression of NO production. Taken together, these data indicate that HX106N exerts potent antioxidative effects by increasing the expression of HO-1 through multiple signaling pathways, leading to the suppression of NO production.
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Affiliation(s)
- Doo Suk Lee
- School of Biological Sciences, Seoul National University, Seoul 151-742, Korea ViroMed Co., Ltd., Seoul 151-747, Korea
| | - Binna N Kim
- Interdisciplinary Program in Neuroscience, College of Natural Sciences, Seoul National University, Seoul 151-742, Korea
| | - Seonung Lim
- School of Biological Sciences, Seoul National University, Seoul 151-742, Korea
| | - Junsub Lee
- School of Biological Sciences, Seoul National University, Seoul 151-742, Korea
| | - Jiyoung Kim
- School of Biological Sciences, Seoul National University, Seoul 151-742, Korea Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
| | | | - Sunyoung Kim
- School of Biological Sciences, Seoul National University, Seoul 151-742, Korea ViroMed Co., Ltd., Seoul 151-747, Korea
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Dorresteijn MJ, Paine A, Zilian E, Fenten MGE, Frenzel E, Janciauskiene S, Figueiredo C, Eiz-Vesper B, Blasczyk R, Dekker D, Pennings B, Scharstuhl A, Smits P, Larmann J, Theilmeier G, van der Hoeven JG, Wagener FADTG, Pickkers P, Immenschuh S. Cell-type-specific downregulation of heme oxygenase-1 by lipopolysaccharide via Bach1 in primary human mononuclear cells. Free Radic Biol Med 2015; 78:224-32. [PMID: 25463280 DOI: 10.1016/j.freeradbiomed.2014.10.579] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 10/24/2014] [Accepted: 10/29/2014] [Indexed: 11/18/2022]
Abstract
Heme oxygenase (HO)-1 is the inducible isoform of the heme-degrading enzyme HO, which is upregulated by multiple stress stimuli. HO-1 has major immunomodulatory and anti-inflammatory effects via its cell-type-specific functions in mononuclear cells. Contradictory findings have been reported on HO-1 regulation by the Toll-like receptor (TLR) 4 ligand lipopolysaccharide (LPS) in these cells. Therefore, we reinvestigated the effects of LPS on HO-1 gene expression in human and murine mononuclear cells in vitro and in vivo. Remarkably, LPS downregulated HO-1 in primary human peripheral blood mononuclear cells (PBMCs), CD14(+) monocytes, macrophages, dendritic cells, and granulocytes, but upregulated this enzyme in primary murine macrophages and human monocytic leukemia cell lines. Furthermore, experiments with human CD14(+) monocytes revealed that activation of other TLRs including TLR1, -2, -5, -6, -8, and -9 decreased HO-1 mRNA expression. LPS-dependent downregulation of HO-1 was specific, because expression of cyclooxygenase-2, NADP(H)-quinone oxidoreductase-1, and peroxiredoxin-1 was increased under the same experimental conditions. Notably, LPS upregulated expression of Bach1, a critical transcriptional repressor of HO-1. Moreover, knockdown of this nuclear factor enhanced basal and LPS-dependent HO-1 expression in mononuclear cells. Finally, downregulation of HO-1 in response to LPS was confirmed in PBMCs from human individuals subjected to experimental endotoxemia. In conclusion, LPS downregulates HO-1 expression in primary human mononuclear cells via a Bach1-mediated pathway. As LPS-dependent HO-1 regulation is cell-type- and species-specific, experimental findings in cell lines and animal models need careful interpretation.
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MESH Headings
- Animals
- Basic-Leucine Zipper Transcription Factors/genetics
- Basic-Leucine Zipper Transcription Factors/metabolism
- Blotting, Western
- Down-Regulation
- Endotoxemia/drug therapy
- Endotoxemia/enzymology
- Endotoxemia/pathology
- Fanconi Anemia Complementation Group Proteins/genetics
- Fanconi Anemia Complementation Group Proteins/metabolism
- Gene Expression Regulation, Enzymologic/drug effects
- Heme Oxygenase-1/genetics
- Heme Oxygenase-1/metabolism
- Humans
- Leukemia, Monocytic, Acute/drug therapy
- Leukemia, Monocytic, Acute/enzymology
- Leukemia, Monocytic, Acute/pathology
- Leukocytes, Mononuclear/cytology
- Leukocytes, Mononuclear/drug effects
- Leukocytes, Mononuclear/enzymology
- Lipopolysaccharides/pharmacology
- Macrophages/cytology
- Macrophages/drug effects
- Macrophages/enzymology
- Mice
- Monocytes/cytology
- Monocytes/drug effects
- Monocytes/enzymology
- RNA, Messenger/genetics
- Real-Time Polymerase Chain Reaction
- Reverse Transcriptase Polymerase Chain Reaction
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Affiliation(s)
- Mirrin J Dorresteijn
- Department of Intensive Care Medicine, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands; Department of Pharmacology and Toxicology, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands; Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| | - Ananta Paine
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany
| | - Eva Zilian
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany
| | - Maaike G E Fenten
- Department of Intensive Care Medicine, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands; Department of Pharmacology and Toxicology, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands; Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| | - Eileen Frenzel
- Department of Internal Medicine-Respiratory Medicine, Hannover Medical School, 30635 Hannover, Germany
| | - Sabina Janciauskiene
- Department of Internal Medicine-Respiratory Medicine, Hannover Medical School, 30635 Hannover, Germany
| | - Constanca Figueiredo
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany
| | - Britta Eiz-Vesper
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany
| | - Rainer Blasczyk
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany
| | - Douwe Dekker
- Department of Pharmacology and Toxicology, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands; Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| | - Bas Pennings
- Department of Pharmacology and Toxicology, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands; Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands; Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6500 Nijmegen, The Netherlands
| | - Alwin Scharstuhl
- Department of Pharmacology and Toxicology, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands; Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| | - Paul Smits
- Department of Pharmacology and Toxicology, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands; Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| | - Jan Larmann
- Department of Anesthesiology and Intensive Care Medicine, Hannover Medical School, 30625 Hannover, Germany
| | - Gregor Theilmeier
- Department of Anesthesiology and Intensive Care Medicine, Hannover Medical School, 30625 Hannover, Germany
| | - Johannes G van der Hoeven
- Department of Intensive Care Medicine, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands; Nijmegen Center for Infectious Diseases, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| | - Frank A D T G Wagener
- Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands; Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6500 Nijmegen, The Netherlands
| | - Peter Pickkers
- Department of Intensive Care Medicine, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands; Nijmegen Center for Infectious Diseases, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands
| | - Stephan Immenschuh
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany.
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Besur S, Hou W, Schmeltzer P, Bonkovsky HL. Clinically important features of porphyrin and heme metabolism and the porphyrias. Metabolites 2014; 4:977-1006. [PMID: 25372274 PMCID: PMC4279155 DOI: 10.3390/metabo4040977] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 10/14/2014] [Accepted: 10/16/2014] [Indexed: 01/29/2023] Open
Abstract
Heme, like chlorophyll, is a primordial molecule and is one of the fundamental pigments of life. Disorders of normal heme synthesis may cause human diseases, including certain anemias (X-linked sideroblastic anemias) and porphyrias. Porphyrias are classified as hepatic and erythropoietic porphyrias based on the organ system in which heme precursors (5-aminolevulinic acid (ALA), porphobilinogen and porphyrins) are chiefly overproduced. The hepatic porphyrias are further subdivided into acute porphyrias and chronic hepatic porphyrias. The acute porphyrias include acute intermittent, hereditary copro-, variegate and ALA dehydratase deficiency porphyria. Chronic hepatic porphyrias include porphyria cutanea tarda and hepatoerythropoietic porphyria. The erythropoietic porphyrias include congenital erythropoietic porphyria (Gűnther’s disease) and erythropoietic protoporphyria. In this review, we summarize the key features of normal heme synthesis and its differing regulation in liver versus bone marrow. In both organs, principal regulation is exerted at the level of the first and rate-controlling enzyme, but by different molecules (heme in the liver and iron in the bone marrow). We also describe salient clinical, laboratory and genetic features of the eight types of porphyria.
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Affiliation(s)
- Siddesh Besur
- Department of Medicine and Center for Liver Disease, Carolinas HealthCare System, Charlotte, NC 28204, USA.
| | - Wehong Hou
- Department of Research and the Liver, Digestive, and Metabolic Disorders Laboratory, Carolinas HealthCare System, Charlotte, NC 28203, USA.
| | - Paul Schmeltzer
- Department of Medicine and Center for Liver Disease, Carolinas HealthCare System, Charlotte, NC 28204, USA.
| | - Herbert L Bonkovsky
- Department of Medicine, Universities of CT, Farmington, CT 06030 and North Carolina, Chapel Hill, NC 27599, USA.
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Konrad FM, Braun S, Ngamsri KC, Vollmer I, Reutershan J. Heme oxygenase-1 attenuates acute pulmonary inflammation by decreasing the release of segmented neutrophils from the bone marrow. Am J Physiol Lung Cell Mol Physiol 2014; 307:L707-17. [DOI: 10.1152/ajplung.00145.2014] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Recruiting polymorphonuclear neutrophil granulocytes (PMNs) from circulation and bone marrow to the site of inflammation is one of the pivotal mechanisms of the innate immune system. During inflammation, the enzyme heme oxygenase 1 (HO-1) has been shown to reduce PMN migration. Although these effects have been described in various models, underlying mechanisms remain elusive. Recent studies revealed an influence of HO-1 on different cells of the bone marrow. We investigated the particular role of the bone marrow in terms of HO-1-dependent pulmonary inflammation. In a murine model of LPS inhalation, stimulation of HO-1 by cobalt (III) protoporphyrin-IX-chloride (CoPP) resulted in reduced segmented PMN migration into the alveolar space. In the CoPP group, segmented PMNs were also decreased intravascularly, and concordantly, mature and immature PMN populations were higher in the bone marrow. Inhibition of the enzyme by tin protoporphyrin-IX increased segmented and banded PMN migration into the bronchoalveolar lavage fluid with enhanced PMN release from the bone marrow and aggravated parameters of tissue inflammation. Oxidative burst activity was significantly higher in immature compared with mature PMNs. The chemokine stromal-derived factor-1 (SDF-1), which mediates homing of leukocytes into the bone marrow and is decreased in inflammation, was increased by CoPP. When SDF-1 was blocked by the specific antagonist AMD3100, HO-1 activation was no longer effective in curbing PMN trafficking to the inflamed lungs. In conclusion, we show evidence that the anti-inflammatory effects of HO-1 are largely mediated by inhibiting the release of segmented PMNs from the bone marrow rather than direct effects within the lung.
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Affiliation(s)
- Franziska M. Konrad
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Tübingen, Tübingen, Germany
| | - Stefan Braun
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Tübingen, Tübingen, Germany
| | - Kristian-Christos Ngamsri
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Tübingen, Tübingen, Germany
| | - Irene Vollmer
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Tübingen, Tübingen, Germany
| | - Jörg Reutershan
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Tübingen, Tübingen, Germany
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Czibik G, Derumeaux G, Sawaki D, Valen G, Motterlini R. Heme oxygenase-1: an emerging therapeutic target to curb cardiac pathology. Basic Res Cardiol 2014; 109:450. [PMID: 25344086 DOI: 10.1007/s00395-014-0450-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 10/05/2014] [Accepted: 10/17/2014] [Indexed: 12/18/2022]
Abstract
Activation of heme oxygenase-1 (HO-1), a heme-degrading enzyme responsive to a wide range of cellular stress, is traditionally considered to convey adaptive responses to oxidative stress, inflammation and vasoconstriction. These diversified effects are achieved through the degradation of heme to carbon monoxide (CO), biliverdin (which is rapidly converted to bilirubin by biliverdin reductase) and ferric iron. Recent findings have added antiproliferative and angiogenic effects to the list of HO-1/CO actions. HO-1 along with its reaction products bilirubin and CO are protective against ischemia-induced injury (myocardial infarction, ischemia-reperfusion (IR)-injury and post-infarct structural remodelling). Moreover, HO-1, and CO in particular, possess acute antihypertensive effects. As opposed to these curative potentials, the long-believed protective effect of HO-1 in cardiac remodelling in response to pressure overload and type 2 diabetes mellitus (DM) has been questioned by recent work. These challenges, coupled with emerging regulatory mechanisms, motivate further in-depth studies to help understand untapped layers of HO-1 regulation and action. The outcomes of these efforts may shed new light on critical mechanisms that could be used to harness the protective potential of this enzyme for the therapeutic benefit of patients suffering from such highly prevalent cardiovascular disorders.
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Affiliation(s)
- Gabor Czibik
- INSERM U955, Equipe 8, Faculty of Medicine, DHU A-TVB, Hôpital Henri Mondor, APHP, Creteil, University of Paris-Est, 3rd Floor, room 3006, Paris, France,
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Wegiel B, Larsen R, Gallo D, Chin BY, Harris C, Mannam P, Kaczmarek E, Lee PJ, Zuckerbraun BS, Flavell R, Soares MP, Otterbein LE. Macrophages sense and kill bacteria through carbon monoxide-dependent inflammasome activation. J Clin Invest 2014; 124:4926-40. [PMID: 25295542 DOI: 10.1172/jci72853] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 08/28/2014] [Indexed: 01/08/2023] Open
Abstract
Microbial clearance by eukaryotes relies on complex and coordinated processes that remain poorly understood. The gasotransmitter carbon monoxide (CO) is generated by the stress-responsive enzyme heme oxygenase-1 (HO-1, encoded by Hmox1), which is highly induced in macrophages in response to bacterial infection. HO-1 deficiency results in inadequate pathogen clearance, exaggerated tissue damage, and increased mortality. Here, we determined that macrophage-generated CO promotes ATP production and release by bacteria, which then activates the Nacht, LRR, and PYD domains-containing protein 3 (NALP3) inflammasome, intensifying bacterial killing. Bacterial killing defects in HO-1-deficient murine macrophages were restored by administration of CO. Moreover, increased CO levels enhanced the bacterial clearance capacity of human macrophages and WT murine macrophages. CO-dependent bacterial clearance required the NALP3 inflammasome, as CO did not increase bacterial killing in macrophages isolated from NALP3-deficient or caspase-1-deficient mice. IL-1β cleavage and secretion were impaired in HO-1-deficient macrophages, and CO-dependent processing of IL-1β required the presence of bacteria-derived ATP. We found that bacteria remained viable to generate and release ATP in response to CO. The ATP then bound to macrophage nucleotide P2 receptors, resulting in activation of the NALP3/IL-1β inflammasome to amplify bacterial phagocytosis by macrophages. Taken together, our results indicate that macrophage-derived CO permits efficient and coordinated regulation of the host innate response to invading microbes.
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Gill AJ, Kovacsics CE, Cross SA, Vance PJ, Kolson LL, Jordan-Sciutto KL, Gelman BB, Kolson DL. Heme oxygenase-1 deficiency accompanies neuropathogenesis of HIV-associated neurocognitive disorders. J Clin Invest 2014; 124:4459-72. [PMID: 25202977 DOI: 10.1172/jci72279] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 08/04/2014] [Indexed: 11/17/2022] Open
Abstract
Heme oxygenase-1 (HO-1) is an inducible, detoxifying enzyme that is critical for limiting oxidative stress, inflammation, and cellular injury within the CNS and other tissues. Here, we demonstrate a deficiency of HO-1 expression in the brains of HIV-infected individuals. This HO-1 deficiency correlated with cognitive dysfunction, HIV replication in the CNS, and neuroimmune activation. In vitro analysis of HO-1 expression in HIV-infected macrophages, a primary CNS HIV reservoir along with microglia, demonstrated a decrease in HO-1 as HIV replication increased. HO-1 deficiency correlated with increased culture supernatant glutamate and neurotoxicity, suggesting a link among HIV infection, macrophage HO-1 deficiency, and neurodegeneration. HO-1 siRNA knockdown and HO enzymatic inhibition in HIV-infected macrophages increased supernatant glutamate and neurotoxicity. In contrast, increasing HO-1 expression through siRNA derepression or with nonselective pharmacologic inducers, including the CNS-penetrating drug dimethyl fumarate (DMF), decreased supernatant glutamate and neurotoxicity. Furthermore, IFN-γ, which is increased in CNS HIV infection, reduced HO-1 expression in cultured human astrocytes and macrophages. These findings indicate that HO-1 is a protective host factor against HIV-mediated neurodegeneration and suggest that HO-1 deficiency contributes to this degeneration. Furthermore, these results suggest that HO-1 induction in the CNS of HIV-infected patients on antiretroviral therapy could potentially protect against neurodegeneration and associated cognitive dysfunction.
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Li CM, Li L, Wu J, Bai JY, Sun Y, Huang S, Wang GL. Upregulation of heat shock protein 32 with hemin alleviates acute heat-induced hepatic injury in mice. Cell Stress Chaperones 2014; 19:675-83. [PMID: 24473736 PMCID: PMC4147065 DOI: 10.1007/s12192-014-0495-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 12/30/2013] [Accepted: 01/08/2014] [Indexed: 01/03/2023] Open
Abstract
Heat shock protein 32 (HSP32) is a stress response protein that can be induced by heat stress in the liver, and its induction can act as an important cellular defence mechanism against heat-induced liver injury. To investigate the functional role of HSP32 in protecting liver tissue against heat stress in mice and the mechanism by which it achieves this protective effect, HSP32 expression and carbon monoxide (CO) contents in a model of mice subjected to acute, transient heat exposure were examined. Furthermore, functional and histological parameters of liver damage and the possible involvement of oxidative stress to induce oxidative deterioration of liver functions and caspase-3 expression were also investigated in this study. We found that heat treatment of mice produced severe hepatic injury, whereas upregulation of HSP32 with hemin pretreatment prevented mice from liver damage. In contrast, addition of Sn-protoporphyrin (SnPP) to inhibit HSP32 expression completely reversed its hepatoprotective effect. It is concluded that upregulation of HSP32 by hemin could alleviate acute heat-induced hepatocellular damage in mice, and its by-product CO seems to play a more important role in hepatoprotective mechanism.
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Affiliation(s)
- Cheng-min Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095 China
| | - Lian Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095 China
| | - Jie Wu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095 China
| | - Jing-yan Bai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095 China
| | - Yu Sun
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095 China
| | - Shuai Huang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095 China
| | - Gen-lin Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095 China
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Gobert AP, Verriere T, Asim M, Barry DP, Piazuelo MB, de Sablet T, Delgado AG, Bravo LE, Correa P, Peek RM, Chaturvedi R, Wilson KT. Heme oxygenase-1 dysregulates macrophage polarization and the immune response to Helicobacter pylori. J Immunol 2014; 193:3013-22. [PMID: 25108023 DOI: 10.4049/jimmunol.1401075] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Helicobacter pylori incites a futile inflammatory response, which is the key feature of its immunopathogenesis. This leads to the ability of this bacterial pathogen to survive in the stomach and cause peptic ulcers and gastric cancer. Myeloid cells recruited to the gastric mucosa during H. pylori infection have been directly implicated in the modulation of host defense against the bacterium and gastric inflammation. Heme oxygenase-1 (HO-1) is an inducible enzyme that exhibits anti-inflammatory functions. Our aim was to analyze the induction and role of HO-1 in macrophages during H. pylori infection. We now show that phosphorylation of the H. pylori virulence factor cytotoxin-associated gene A (CagA) in macrophages results in expression of hmox-1, the gene encoding HO-1, through p38/NF (erythroid-derived 2)-like 2 signaling. Blocking phagocytosis prevented CagA phosphorylation and HO-1 induction. The expression of HO-1 was also increased in gastric mononuclear cells of human patients and macrophages of mice infected with cagA(+) H. pylori strains. Genetic ablation of hmox-1 in H. pylori-infected mice increased histologic gastritis, which was associated with enhanced M1/Th1/Th17 responses, decreased regulatory macrophage (Mreg) response, and reduced H. pylori colonization. Gastric macrophages of H. pylori-infected mice and macrophages infected in vitro with this bacterium showed an M1/Mreg mixed polarization type; deletion of hmox-1 or inhibition of HO-1 in macrophages caused an increased M1 and a decrease of Mreg phenotype. These data highlight a mechanism by which H. pylori impairs the immune response and favors its own survival via activation of macrophage HO-1.
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Affiliation(s)
- Alain P Gobert
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232; Institut National de la Recherche Agronomique, Unité de Recherche Microbiologie (UR454), 63122 Saint-Genès-Champanelle, France
| | - Thomas Verriere
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232
| | - Mohammad Asim
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232
| | - Daniel P Barry
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232
| | - M Blanca Piazuelo
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232
| | - Thibaut de Sablet
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232
| | - Alberto G Delgado
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232
| | - Luis E Bravo
- Departamento de Patología, Escuela de Medicina, Universidad del Valle, Cali, Colombia
| | - Pelayo Correa
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232
| | - Richard M Peek
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232; Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN 37232; Veterans Affairs Tennessee Valley Healthcare System, Nashville, TN 37212; and
| | - Rupesh Chaturvedi
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232
| | - Keith T Wilson
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232; Department of Cancer Biology, Vanderbilt University School of Medicine, Nashville, TN 37232; Veterans Affairs Tennessee Valley Healthcare System, Nashville, TN 37212; and Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN 37232
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Abstract
Acute lung injury (ALI) and its more severe form of clinical manifestation, the acute respiratory distress syndrome is associated with significant dysfunction in air exchange due to inflammation of the lung parenchyma. Several factors contribute to the inflammatory process, including hypoxia (inadequate oxygen), hyperoxia (higher than normal partial pressure of oxygen), inflammatory mediators (such as cytokines), infections (viral and bacterial), and environmental conditions (such as cigarette smoke or noxious gases). However, studies over the past several decades suggest that oxidants formed in the various cells of the lung including endothelial, alveolar, and epithelial cells as well as lung macrophages and neutrophils in response to the factors mentioned above mediate the pathogenesis of ALI. Oxidants modify cellular proteins, lipids, carbohydrates, and DNA to cause their aberrant function. For example, oxidation of lipids changes membrane permeability. Interestingly, recent studies also suggest that spatially and temporally regulated production of oxidants plays an important role antimicrobial defense and immunomodulatory function (such as transcription factor activation). To counteract the oxidants an arsenal of antioxidants exists in the lung to maintain the redox status, but when overwhelmed tissue injury and exacerbation of inflammation occurs. We present below the current understanding of the pathogenesis of oxidant-mediated ALI.
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Affiliation(s)
- J Vidya Sarma
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, USA
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43
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Lin CY, Hsiao WC, Huang CJ, Kao CF, Hsu GSW. Heme oxygenase-1 induction by the ROS–JNK pathway plays a role in aluminum-induced anemia. J Inorg Biochem 2013; 128:221-8. [DOI: 10.1016/j.jinorgbio.2013.07.026] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 07/16/2013] [Accepted: 07/16/2013] [Indexed: 01/16/2023]
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Abstract
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) remain major causes of morbidity and mortality in critical care medicine despite advances in therapeutic modalities. ALI can be associated with sepsis, trauma, pharmaceutical or xenobiotic exposures, high oxygen therapy (hyperoxia), and mechanical ventilation. Of the small gas molecules (NO, CO, H₂S) that arise in human beings from endogenous enzymatic activities, the physiological significance of NO is well established, whereas that of CO or H₂S remains controversial. Recent studies have explored the potential efficacy of inhalation therapies using these small gas molecules in animal models of ALI. NO has vasoregulatory and redox-active properties and can function as a selective pulmonary vasodilator. Inhaled NO (iNO) has shown promise as a therapy in animal models of ALI including endotoxin challenge, ischemia/reperfusion (I/R) injury, and lung transplantation. CO, another diatomic gas, can exert cellular tissue protection through antiapoptotic, anti-inflammatory, and antiproliferative effects. CO has shown therapeutic potential in animal models of endotoxin challenge, oxidative lung injury, I/R injury, pulmonary fibrosis, ventilator-induced lung injury, and lung transplantation. H₂S, a third potential therapeutic gas, can induce hypometabolic states in mice and can confer both pro- and anti-inflammatory effects in rodent models of ALI and sepsis. Clinical studies have shown variable results for the efficacy of iNO in lung transplantation and failure for this therapy to improve mortality in ARDS patients. No clinical studies have been conducted with H₂S. The clinical efficacy of CO remains unclear and awaits further controlled clinical studies in transplantation and sepsis.
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Affiliation(s)
- Stefan W Ryter
- Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
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Gibbons SJ, Verhulst PJ, Bharucha A, Farrugia G. Review article: carbon monoxide in gastrointestinal physiology and its potential in therapeutics. Aliment Pharmacol Ther 2013; 38:689-702. [PMID: 23992228 PMCID: PMC3788684 DOI: 10.1111/apt.12467] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 05/03/2013] [Accepted: 08/07/2013] [Indexed: 12/14/2022]
Abstract
BACKGROUND While carbon monoxide (CO) is a known toxin, it is now recognised that CO is also an important signalling molecule involved in physiology and pathophysiology. AIMS To summarise our current understanding of the role of endogenous CO in the regulation of gastrointestinal physiology and pathophysiology, and to potential therapeutic applications of modulating CO. METHODS This review is based on a comprehensive search of the Ovid Medline comprehensive database and supplemented by our ongoing studies evaluating the role of CO in gastrointestinal physiology and pathophysiology. RESULTS Carbon monoxide derived from haem oxygenase (HO)-2 is predominantly involved in neuromodulation and in setting the smooth muscle membrane potential, while CO derived from HO-1 has anti-inflammatory and antioxidative properties, which protect gastrointestinal smooth muscle from damage caused by injury or inflammation. Exogenous CO is being explored as a therapeutic agent in a variety of gastrointestinal disorders, including diabetic gastroparesis, post-operative ileus, organ transplantation, inflammatory bowel disease and sepsis. However, identifying the appropriate mechanism for safely delivering CO in humans is a major challenge. CONCLUSIONS Carbon monoxide is an important regulator of gastrointestinal function and protects the gastrointestinal tract against noxious injury. CO is a promising therapeutic target in conditions associated with gastrointestinal injury and inflammation. Elucidating the mechanisms by which CO works and developing safe CO delivery mechanisms are necessary to refine therapeutic strategies.
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Affiliation(s)
- S J Gibbons
- Enteric NeuroScience Program, Mayo Clinic, Rochester, MN 55905, USA
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Park J, Kang JW, Lee SM. Activation of the cholinergic anti-inflammatory pathway by nicotine attenuates hepatic ischemia/reperfusion injury via heme oxygenase-1 induction. Eur J Pharmacol 2013; 707:61-70. [DOI: 10.1016/j.ejphar.2013.03.026] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 03/06/2013] [Accepted: 03/07/2013] [Indexed: 12/18/2022]
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Kim HJ, Jung KJ, Seo AY, Choi JS, Yu BP, Chung HY. Calorie restriction modulates redox-sensitive AP-1 during the aging process. J Am Aging Assoc 2002; 25:123-30. [PMID: 23604908 DOI: 10.1007/s11357-002-0011-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Oxidative stress is claimed to be a major cause of aging. Recent data suggest that calorie restriction (CR) prolongs life span by its ability to retard aging, possibly by regulating the intracellular redox status through its antioxidative actions. Currently, there is little information showing the influences of age and CR on the redox-sensitive transcription factor activator protein-1 (AP-1). In the present study, we investigated how age affects the status of AP-1 and whether CR modulates the age effect. For our study, we used the kidney from male Fischer 344 rats, ages 6, 12, 18, and 24 months fed ad libitum (AL) or a CR diet. Results from our study showed that AP-1 binding activity markedly increases with age, while CR keeps this activity at the level of 6-month-old rats. We found that c-Jun and c-Fos protein levels increase during aging, and that aging induces phosphorylation of c-Jun, which might enhance AP-1 transcriptional activity. For CR's action, we found that in the nucleus of aged rats, AP-1 activation was blunted by decreasing c-Jun and c-Fos levels and inhibiting c-Jun protein phosphorylation. Results also indicated that matrix metalloproteinase-13 and heme oxygenase-1, which have an AP-1 binding site in their promoter regions, have a similar tendency toward AP-1 binding activity. Based on the data of these findings, we concluded that AP-1 activity increases in rat kidney with age and that CR reduces AP-1 activity.
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Abstract
Using a luciferase reporter assay, we previously demonstrated that a Z-DNA-forming sequence of alternating thymine-guanine repeats in the human heme oxygenase-1 gene (HO-1) promoter is involved in nuclear factor erythroid-derived 2 (NF-E2)-related factor 2 (Nrf2)-mediated HO-1 promoter activation. However, the actual Z-DNA formation in this native genomic locus has not been experimentally demonstrated. To detect Z-DNA formation in vivo, we generated a construct containing the Z-DNA-binding domain of human adenosine deaminase acting on double-stranded RNA 1 fused with enhanced green fluorescence protein, designated as the Z-probe. A chromatin immunoprecipitation assay using an anti-GFP antibody showed that the Z-probe detects the well-characterized Z-DNA formation in the CSF1 promoter. Using this detection system, we demonstrated that the glutathione-depleting agent, diethyl maleate, induced Nrf2-dependent Z-DNA formation in the HO-1 promoter, but not in the thioredoxin reductase 1 gene promoter. Moreover, a time course analysis revealed that Z-DNA formation precedes HO-1 transcriptional activation. Concurrent with Z-DNA formation, nucleosome occupancy was reduced, and the recruitment of RNA polymerase II was enhanced in the HO-1 promoter region, suggesting that Z-DNA formation enhances HO-1 gene transcription. Furthermore, Nrf2-induced BRG1 recruitment to the HO-1 promoter temporarily occurred simultaneously with Z-DNA formation. Thus, these results implicate Nrf2-dependent Z-DNA formation in HO-1 transcriptional activation and suggest the involvement of BRG1 in Z-DNA formation.
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Affiliation(s)
- Atsushi Maruyama
- Department of Stress Response Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan
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Schroeder JH, Simbi BH, Ford L, Cole SR, Taylor MJ, Lawson C, Lawrence RA. Live Brugia malayi microfilariae inhibit transendothelial migration of neutrophils and monocytes. PLoS Negl Trop Dis 2012; 6:e1914. [PMID: 23209856 PMCID: PMC3510151 DOI: 10.1371/journal.pntd.0001914] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Accepted: 10/04/2012] [Indexed: 01/13/2023] Open
Abstract
Lymphatic filariasis is a major tropical disease caused by the parasite Brugia malayi. Microfilariae (Mf) circulate in the peripheral blood for 2-3 hours in synchronisation with maximal feeding of the mosquito vector. When absent from the peripheral blood, Mf sequester in the capillaries of the lungs. Mf are therefore in close contact with vascular endothelial cells (EC) and may induce EC immune function and/or wound repair mechanisms such as angiogenesis. In this study, Mf were co-cultured with human umbilical vein EC (HUVEC) or human lung microvascular EC (HLMVEC) and the transendothelial migration of leukocyte subsets was analysed. In addition, the protein and/or mRNA expression of chemokine, cytokine and angiogenic mediators in endothelial cells in the presence of live microfilariae were measured by a combination of cDNA arrays, protein arrays, ELISA and fluorescence antibody tests.Surprisingly, our findings indicate that Mf presence partially blocked transendothelial migration of monocytes and neutrophils, but not lymphocytes. However, Mf exposure did not result in altered vascular EC expression of key mediators of the tethering stage of extravasation, such as ICAM-1, VCAM-1 and various chemokines. To further analyse the immunological function of vascular EC in the presence of Mf, we measured the mRNA and/or protein expression of a number of pro-inflammatory mediators. We found that expression levels of the mediators tested were predominantly unaltered upon B. malayi Mf exposure. In addition, a comparison of angiogenic mediators induced by intact Mf and Wolbachia-depleted Mf revealed that even intact Mf induce the expression of remarkably few angiogenic mediators in vascular EC. Our study suggests that live microfilariae are remarkably inert in their induction and/or activation of vascular cells in their immediate local environment. Overall, this work presents important insights into the immunological function of the vascular endothelium during an infection with B. malayi.
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Affiliation(s)
| | - Bigboy H. Simbi
- Royal Veterinary College, University of London, London, United Kingdom
| | - Louise Ford
- Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Sara R. Cole
- Royal Veterinary College, University of London, London, United Kingdom
| | - Mark J. Taylor
- Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Charlotte Lawson
- Royal Veterinary College, University of London, London, United Kingdom
| | - Rachel A. Lawrence
- Royal Veterinary College, University of London, London, United Kingdom
- * E-mail:
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Paul-Clark MJ, George PM, Gatheral T, Parzych K, Wright WR, Crawford D, Bailey LK, Reed DM, Mitchell JA. Pharmacology and therapeutic potential of pattern recognition receptors. Pharmacol Ther 2012; 135:200-15. [PMID: 22627269 DOI: 10.1016/j.pharmthera.2012.05.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Accepted: 04/20/2012] [Indexed: 12/30/2022]
Abstract
Pharmacologists have used pathogen-associated molecular patterns (PAMPs), such as lipopolysaccharide (LPS) for decades as a stimulus for studying mediators involved in inflammation and for the screening of anti-inflammatory compounds. However, in the view of immunologists, LPS was too non-specific for studying the mechanisms of immune signalling in infection and inflammation, as no receptors had been identified. This changed in the late 1990s with the discovery of the Toll-like receptors. These 'pattern recognition receptors' (PRRs) were able to recognise highly conserved sequences, the so called pathogen associated molecular patterns (PAMPs) present in or on pathogens. This specificity of particular PAMPs and their newly defined receptors provided a common ground between pharmacologists and immunologists for the study of inflammation. PRRs also recognise endogenous agonists, the so called danger-associated molecular patterns (DAMPs), which can result in sterile inflammation. The signalling pathways and ligands of many PRRs have now been characterised and there is no doubt that this rich vein of research will aid the discovery of new therapeutics for infectious conditions and chronic inflammatory disease.
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Affiliation(s)
- M J Paul-Clark
- Department of Cardiothoracic Pharmacology, Pharmacology and Toxicology, National Heart and Lung Institute, Imperial College London, Guy Scadding Building, Dovehouse Street, London SW3 6LY, United Kingdom.
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