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Kim SH, Jang YA, Kwon YJ. Anti-Inflammatory Effect of Chamaecyparis obtusa (Siebold & Zucc.) Endl. Leaf Essential Oil. Molecules 2024; 29:1117. [PMID: 38474629 DOI: 10.3390/molecules29051117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/09/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Chamaecyparis obtusa (Siebold & Zucc.) Endl. (C. obtusa) belongs to the Cupressaceae family and is native to East Asian regions. Essential oils extracted from the leaves, bark, branches, and roots of C. obtusa have both aesthetic and medicinal properties and are thus widely used. However, detailed analyses of the active ingredients of C. obtusa extract are lacking. In this study, the sabinene content in the hydro-distillation of C. obtusa leaf essential oil (COD) was analyzed using GC-MS, and the anti-inflammatory effect of COD was compared with that of pure sabinene. Cell viability was evaluated by MTT assay, and nitric oxide (NO) production was measured using Griess reagent. Relative mRNA and protein levels were analyzed using RT-qPCR and western blot, and secreted cytokines were analyzed using a cytokine array kit. The results showed that both COD and sabinene inhibited the expression of inducible nitric oxide synthase (iNOS) and the phosphorylation of c-Jun N-terminal kinase (JNK) and p38 in lipopolysaccharide (LPS)-induced RAW 264.7 cells. COD and sabinene also reduced the production of pro-inflammatory cytokines interleukin (IL)-1β, IL-6, IL-27, IL-1 receptor antagonist (IL-1ra), and granulocyte-macrophage colony-stimulating factor (GM-CSF). The anti-inflammatory mechanisms of COD and sabinene partially overlap, as COD was shown to inhibit MAPKs and the JAK/STAT axis, and sabinene inhibited MAPKs, thereby preventing LPS-induced macrophage activation.
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Affiliation(s)
- Sung-Hee Kim
- Department of Cosmeceutical Science, Kyungsung University, Busan 48434, Republic of Korea
| | - Young-Ah Jang
- Division of Cosmetic Science, Daegu Haany University, Gyeongsan 38610, Gyeongbuk, Republic of Korea
| | - Yong-Jin Kwon
- Department of Cosmeceutical Science, Kyungsung University, Busan 48434, Republic of Korea
- Department of Cosmetic Science, Kyungsung University, Busan 48434, Republic of Korea
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2
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Hashimoto R, Koide H, Katoh Y. MEK inhibitors increase the mortality rate in mice with LPS-induced inflammation through IL-12-NO signaling. Cell Death Discov 2023; 9:374. [PMID: 37833247 PMCID: PMC10575927 DOI: 10.1038/s41420-023-01674-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 09/11/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023] Open
Abstract
Lipopolysaccharide (LPS) is an endotoxin that can cause an acute inflammatory response. Nitric oxide (NO) is one of the most important innate immune system components and is synthesized by inducible NOS (iNOS) in macrophages in response to stimulation with LPS. LPS activates the RAS-RAF-mitogen-activated protein kinase/ERK kinase (MEK)-extracellular-signal-regulated kinase (ERK) signaling cascade in macrophages. The purpose of this study was to examine how the combination of LPS and MEK inhibitors, which have been used as anticancer agents in recent years, affects inflammation. We showed that MEK inhibitors enhanced iNOS expression and NO production in LPS-stimulated mouse bone marrow-derived macrophages. A MEK inhibitor increased the mortality rate in mice with LPS-induced inflammation. The expression of the cytokine interleukin-12 (IL-12) in macrophages was enhanced by the MEK inhibitor, as shown by a cytokine array and ELISA. IL-12 enhanced iNOS expression and NO production in response to LPS. We also showed that tumor necrosis factor (TNF-α) was secreted by macrophage after stimulation with LPS and that TNF-α and IL-12 synergistically induced iNOS expression and NO production. An anti-IL-12 neutralizing antibody prevented NO production and mortality in an LPS-induced inflammation mouse model in the presence of a MEK inhibitor. These results suggest that the MEK inhibitor increases the mortality rate in mice with LPS-induced inflammation through IL-12-NO signaling.
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Affiliation(s)
- Ryota Hashimoto
- Laboratory of Cell Biology, Biomedical Research Core Facilities, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan.
- Department of Physiology, Juntendo University Faculty of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan.
| | - Hiroshi Koide
- Laboratory of Molecular and Biochemical Research, Biomedical Research Core Facilities, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Youichi Katoh
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Hongo 2-1-1, Bunkyo-ku, Tokyo, 113-8421, Japan.
- Juntendo University Faculty of International Liberal Arts, Hongo 2-1-1, Bunkyo-ku, Tokyo, 112-8421, Japan.
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Nortey AN, Garces KN, Hackam AS. Exploring the role of interleukin-27 as a regulator of neuronal survival in central nervous system diseases. Neural Regen Res 2022; 17:2149-2152. [PMID: 35259821 PMCID: PMC9083161 DOI: 10.4103/1673-5374.336134] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/12/2021] [Accepted: 11/16/2021] [Indexed: 12/13/2022] Open
Abstract
Interleukin-27 is a pleiotropic cytokine that is involved in tissue responses to infection, cell stress, neuronal disease, and tumors. Recent studies in various tissues indicate that interleukin-27 has complex activating and inhibitory properties in innate and acquired immunity. The availability of recombinant interleukin-27 protein and mice with genetic deletions of interleukin-27, its receptors and signaling mediators have helped define the role of interleukin-27 in neurodegenerative diseases. Interleukin-27 has been well-characterized as an important regulator of T cell activation and differentiation that enhances or suppresses T cell responses in autoimmune conditions in the central nervous system. Evidence is also accumulating that interleukin-27 has neuroprotective activities in the retina and brain. Interleukin-27 is secreted from and binds to infiltrating microglia, macrophage, astrocytes, and even neurons and it promotes neuronal survival by regulating pro- and anti-inflammatory cytokines, neuroinflammatory pathways, oxidative stress, apoptosis, autophagy, and epigenetic modifications. However, interleukin-27 can have the opposite effect and induce inflammation and cell death in certain situations. In this review, we describe the current understanding of regulatory activities of interleukin-27 on cell survival and inflammation and discuss its mechanisms of action in the brain, spinal cord, and retina. We also review evidence for and against the therapeutic potential of interleukin-27 for dampening harmful neuroinflammatory responses in central nervous system diseases.
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Affiliation(s)
- Andrea N. Nortey
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Kimberly N. Garces
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Abigail S. Hackam
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
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Cowan MN, Kovacs MA, Sethi I, Babcock IW, Still K, Batista SJ, O’Brien CA, Thompson JA, Sibley LA, Labuzan SA, Harris TH. Microglial STAT1-sufficiency is required for resistance to toxoplasmic encephalitis. PLoS Pathog 2022; 18:e1010637. [PMID: 36067217 PMCID: PMC9481170 DOI: 10.1371/journal.ppat.1010637] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 09/16/2022] [Accepted: 08/11/2022] [Indexed: 12/02/2022] Open
Abstract
Toxoplasma gondii is a ubiquitous intracellular protozoan parasite that establishes a life-long chronic infection largely restricted to the central nervous system (CNS). Constant immune pressure, notably IFN-γ-STAT1 signaling, is required for preventing fatal pathology during T. gondii infection. Here, we report that abrogation of STAT1 signaling in microglia, the resident immune cells of the CNS, is sufficient to induce a loss of parasite control in the CNS and susceptibility to toxoplasmic encephalitis during the early stages of chronic infection. Using a microglia-specific genetic labeling and targeting system that discriminates microglia from blood-derived myeloid cells that infiltrate the brain during infection, we find that, contrary to previous in vitro reports, microglia do not express inducible nitric-oxide synthase (iNOS) during T. gondii infection in vivo. Instead, transcriptomic analyses of microglia reveal that STAT1 regulates both (i) a transcriptional shift from homeostatic to “disease-associated microglia” (DAM) phenotype conserved across several neuroinflammatory models, including T. gondii infection, and (ii) the expression of anti-parasitic cytosolic molecules that are required for eliminating T. gondii in a cell-intrinsic manner. Further, genetic deletion of Stat1 from microglia during T. gondii challenge leads to fatal pathology despite largely equivalent or enhanced immune effector functions displayed by brain-infiltrating immune populations. Finally, we show that microglial STAT1-deficiency results in the overrepresentation of the highly replicative, lytic tachyzoite form of T. gondii, relative to its quiescent, semi-dormant bradyzoite form typical of chronic CNS infection. Our data suggest an overall protective role of CNS-resident microglia against T. gondii infection, illuminating (i) general mechanisms of CNS-specific immunity to infection (ii) and a clear role for IFN-STAT1 signaling in regulating a microglial activation phenotype observed across diverse neuroinflammatory disease states. The brain, an immune-privileged organ, can be invaded and colonized by pathogens such as the opportunistic parasite, Toxoplasma gondii. How microglia, the resident immune cells of the brain, provide resistance to infection is an active area of investigation. In this study, we used a genetic approach to generate and study mice with microglia that lack STAT1, a critical transcription factor that confers protection against intracellular pathogens in both humans and mice. We find that despite robust activation and recruitment of immune cells from the blood to the brain during infection, STAT1 deficiency in microglia leads to increased brain parasite burden and uniform lethality in mice when challenged with T. gondii. Our bioinformatic analyses also indicate that STAT1 in microglia regulates (i) the expression of large families of genes associated with parasite killing and (ii) a microglial activation state that has been classically seen in neurodegeneration. Our findings identify mechanisms by which microglia contribute to parasite control and contribute to a greater understanding of their cellular physiology during neuroinflammation.
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Affiliation(s)
- Maureen N. Cowan
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Michael A. Kovacs
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Ish Sethi
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Isaac W. Babcock
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Katherine Still
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Samantha J. Batista
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Carleigh A. O’Brien
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Jeremy A. Thompson
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Lydia A. Sibley
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Sydney A. Labuzan
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
| | - Tajie H. Harris
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia, United States of America
- * E-mail:
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Amsden H, Kourko O, Roth M, Gee K. Antiviral Activities of Interleukin-27: A Partner for Interferons? Front Immunol 2022; 13:902853. [PMID: 35634328 PMCID: PMC9134790 DOI: 10.3389/fimmu.2022.902853] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 04/14/2022] [Indexed: 12/17/2022] Open
Abstract
Emergence of new, pandemic-level viral threats has brought to the forefront the importance of viral immunology and continued improvement of antiviral therapies. Interleukin-27 (IL-27) is a pleiotropic cytokine that regulates both innate and adaptive immune responses. Accumulating evidence has revealed potent antiviral activities of IL-27 against numerous viruses, including HIV, influenza, HBV and more. IL-27 contributes to the immune response against viruses indirectly by increasing production of interferons (IFNs) which have various antiviral effects. Additionally, IL-27 can directly interfere with viral infection both by acting similarly to an IFN itself and by modulating the differentiation and function of various immune cells. This review discusses the IFN-dependent and IFN-independent antiviral mechanisms of IL-27 and highlights the potential of IL-27 as a therapeutic cytokine for viral infection.
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Affiliation(s)
| | | | | | - Katrina Gee
- Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON, Canada
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Kwon YJ, Seo EB, Kim SK, Noh KH, Lee H, Joung YW, Shin HM, Jang YA, Kim YM, Lee JT, Ye SK. Chamaecyparis obtusa (Siebold & Zucc.) Endl. leaf extracts prevent inflammatory responses via inhibition of the JAK/STAT axis in RAW264.7 cells. JOURNAL OF ETHNOPHARMACOLOGY 2022; 282:114493. [PMID: 34364971 DOI: 10.1016/j.jep.2021.114493] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 08/02/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Chamaecyparis obtusa (Siebold & Zucc.) Endl. (C. obtusa) has been used as folk medicine in East Asia and has been reported to alleviate inflammatory diseases. However, the detailed mechanisms for the anti-inflammatory effects of C. obtusa remain unclear. AIM OF THE STUDY Although the anti-inflammatory mechanisms of natural products have been studied for decades, it is still important to identify the potential anti-inflammatory effects of natural sources. In this study, we investigated the anti-inflammatory effects and underlying mechanism of C. obtusa leaf extracts. MATERIAL &METHODS The cell viability was determined by MTT and crystal violet staining. NO production in the supernatant was measured using Griess reagent. The cell lysates were analyzed by immunoblotting and RT-qPCR. Secreted cytokines were analyzed using ELISA kit and cytokine array kit. mRNA expression from the GSE9632 database set. Z-scores were calculated for each gene and visualized by heat map. RESULTS Among the extracts of C. obtusa obtained with different extraction methods, the 99% ethanol leaf extract (CO99EL) strongly inhibited lipopolysaccharide (LPS)-induced inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression and Janus kinase/signaling transducer and activator of transcription (JAK/STAT) phosphorylation in RAW264.7 cells. In addition, CO99EL strongly inhibited LPS-induced interleukin (IL)-1β, IL-6, IL-27, and C-C motif chemokine ligand (CCL)-1 production and directly inhibited LPS-induced JAK/STAT phosphorylation in RAW264.7 cells. CONCLUSIONS These findings demonstrate that CO99EL significantly prevents LPS-induced macrophage activation by inhibiting the JAK/STAT axis. Therefore, we suggest the use of C. obtusa extracts as therapeutic approach for inflammatory diseases.
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Affiliation(s)
- Yong-Jin Kwon
- Department of Pharmacology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, South Korea; Biomedical Science Project (BK21PLUS), Seoul National University College of Medicine, Seoul, 03080, South Korea.
| | - Eun-Bi Seo
- Department of Pharmacology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, South Korea; Biomedical Science Project (BK21PLUS), Seoul National University College of Medicine, Seoul, 03080, South Korea.
| | - Seul-Ki Kim
- Department of Pharmacology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, South Korea; Biomedical Science Project (BK21PLUS), Seoul National University College of Medicine, Seoul, 03080, South Korea.
| | - Kum Hee Noh
- Department of Pharmacology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, South Korea; Biomedical Science Project (BK21PLUS), Seoul National University College of Medicine, Seoul, 03080, South Korea.
| | - Haeri Lee
- Department of Pharmacology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, South Korea.
| | - Yeo-Won Joung
- Department of Cosmeceutical Science, Daegu Haany University, Gyeongsan, 38578, South Korea.
| | - Hyun Mu Shin
- Wide River Institute of Immunology, Seoul National University, Hongcheon, 25159, South Korea.
| | - Young-Ah Jang
- Convergence Research Center for Smart Healthcare of KS R & DB Foundation, Kyungsung University, Busan, 48434, South Korea.
| | - Yu Mi Kim
- Binotec Co., Ltd, Daegu, 42149, South Korea.
| | - Jin-Tae Lee
- Department of Cosmetic Science, Kyungsung University, Busan, 48434, South Korea.
| | - Sang-Kyu Ye
- Department of Pharmacology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, South Korea; Biomedical Science Project (BK21PLUS), Seoul National University College of Medicine, Seoul, 03080, South Korea; Wide River Institute of Immunology, Seoul National University, Hongcheon, 25159, South Korea; Ischemic/Hypoxic Disease Institute, Seoul National University College of Medicine, Seoul, 03080, South Korea; Neuro-Immune Information Storage Network Research Center, Seoul National University College of Medicine, Seoul, 03080, South Korea.
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7
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Kwon Y, Kim M, Kim Y, Jeong MS, Jung HS, Jeoung D. EGR3-HDAC6-IL-27 Axis Mediates Allergic Inflammation and Is Necessary for Tumorigenic Potential of Cancer Cells Enhanced by Allergic Inflammation-Promoted Cellular Interactions. Front Immunol 2021; 12:680441. [PMID: 34234781 PMCID: PMC8257050 DOI: 10.3389/fimmu.2021.680441] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 06/07/2021] [Indexed: 11/18/2022] Open
Abstract
The objective of this study was to investigate mechanisms of allergic inflammation both in vitro and in vivo in details. For this, RNA sequencing was performed. Early growth response 3 gene (Egr3) was one of the most highly upregulated genes in rat basophilic leukemia (RBL2H3) cells stimulated by antigen. The role of Egr3 in allergic inflammation has not been studied extensively. Egr3 was necessary for passive cutaneous anaphylaxis (PCA) and passive systemic anaphylaxis (PSA). Egr3 promoter sequences contained potential binding site for NF-κB p65. NF-κB p65 directly regulated Egr3 expression and mediated allergic inflammation in vitro. Histone deacetylases (HDACs) is known to be involved in allergic airway inflammation. HDAC6 promoter sequences contained potential binding site for EGR3. EGR3 showed binding to promoter sequences of HDAC6. EGR3 was necessary for increased expression of histone deacetylase 6 (HDAC6) in antigen-stimulated RBL2H3 cells. HDAC6 mediated allergic inflammation in vitro and PSA. TargetScan analysis predicted that miR-182-5p was a negative regulator of EGR3. Luciferase activity assay confirmed that miR-182-5p was a direct regulator of EGR3. MiR-182-5p mimic inhibited allergic inflammation both in vitro and in vivo. Cytokine array showed that HDAC6 was necessary for increased interleukin-27 (IL-27) expression in BALB/C mouse model of PSA. Antigen stimulation did not affect expression of EBI3, another subunit of IL-27 in RBL2H3 cells or BALB/C mouse model of PCA or PSA. IL-27 receptor alpha was shown to be able to bind to HDAC6. IL-27 p28 mediated allergic inflammation in vitro, PCA, and PSA. Mouse recombinant IL-27 protein promoted features of allergic inflammation in an antigen-independent manner. HDAC6 was necessary for tumorigenic and metastatic potential enhanced by PSA. PSA enhanced the metastatic potential of mouse melanoma B16F1 cells in an IL-27-dependent manner. Experiments employing culture medium and mouse recombinant IL-27 protein showed that IL-27 mediated and promoted cellular interactions involving B16F1 cells, lung macrophages, and mast cells during allergic inflammation. IL-27 was present in exosomes of antigen-stimulated RBL2H3 cells. Exosomes from antigen-stimulated RBL2H3 cells enhanced invasion of B16F1 melanoma cells in an IL-27-dependemt manner. These results present evidence that EGR3-HDAC6-IL-27 axis can regulate allergic inflammation by mediating cellular interactions.
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Affiliation(s)
- Yoojung Kwon
- Department of Biochemistry, Kangwon National University, Chuncheon, South Korea
| | - Misun Kim
- Department of Biochemistry, Kangwon National University, Chuncheon, South Korea
| | - Youngmi Kim
- Institute of New Frontier Research, College of Medicine, Hallym University, Chuncheon, South Korea
| | - Myeong Seon Jeong
- Department of Biochemistry, Kangwon National University, Chuncheon, South Korea.,Chuncheon Center, Korea Basic Science Institute, Chuncheon, South Korea
| | - Hyun Suk Jung
- Department of Biochemistry, Kangwon National University, Chuncheon, South Korea
| | - Dooil Jeoung
- Department of Biochemistry, Kangwon National University, Chuncheon, South Korea
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Odoardi N, Kourko O, Petes C, Basta S, Gee K. TLR7 Ligation Inhibits TLR8 Responsiveness in IL-27-Primed Human THP-1 Monocytes and Macrophages. J Innate Immun 2021; 13:345-358. [PMID: 34058746 DOI: 10.1159/000515738] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 03/09/2021] [Indexed: 11/19/2022] Open
Abstract
Regulation of proinflammatory cytokine expression is critical in the face of single-stranded RNA (ssRNA) virus infections. Many viruses, including coronavirus and influenza virus, wreak havoc on the control of cytokine expression, leading to the formation of detrimental cytokine storms. Understanding the regulation and interplay between inflammatory cytokines is critical to the identification of targets involved in controlling the induction of cytokine expression. In this study, we focused on how the antiviral cytokine interleukin-27 (IL-27) regulates signal transduction downstream of Toll-like receptor 7 (TLR7) and TLR8 ligation, which recognize endosomal single-stranded RNA. Given that IL-27 alters bacterial-sensing TLR expression on myeloid cells and can inhibit replication of single-stranded RNA viruses, we investigated whether IL-27 affects expression and function of TLR7 and TLR8. Analysis of IL-27-treated THP-1 monocytic cells and THP-1-derived macrophages revealed changes in mRNA and protein expression of TLR7 and TLR8. Although treatment with IL-27 enhanced TLR7 expression, only TLR8-mediated cytokine secretion was amplified. Furthermore, we demonstrated that imiquimod, a TLR7 agonist, inhibited cytokine and chemokine production induced by a TLR8 agonist, TL8-506. Delineating the immunomodulatory role of IL-27 on TLR7 and TLR8 responses provides insight into how myeloid cell TLR-mediated responses are regulated during virus infection.
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Affiliation(s)
- Natalya Odoardi
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Olena Kourko
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Carlene Petes
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Sameh Basta
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Katrina Gee
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
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9
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Morita Y, Masters EA, Schwarz EM, Muthukrishnan G. Interleukin-27 and Its Diverse Effects on Bacterial Infections. Front Immunol 2021; 12:678515. [PMID: 34079555 PMCID: PMC8165262 DOI: 10.3389/fimmu.2021.678515] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 04/27/2021] [Indexed: 02/03/2023] Open
Abstract
Innate and adaptive immune responses against pathogens are known to be carefully orchestrated by specific cytokines that initiate and down regulate immune cell functions from the initial infection through tissue repair and homeostasis. However, some cytokines, including interleukin-27, are expressed at multiple phases of the infection, such that their pro and anti-inflammatory functions have been difficult to interpret. As elucidation of specific cytokine functions throughout infection is central to our understanding of protective vs. susceptible immunity and return to homeostasis vs. prolonged inflammation leading to septic shock, here we review the literature on IL-27 signaling and the various functions of this heterodimeric ligand member of the IL-12 cytokine family. Canonically, IL-27 is produced by antigen-presenting cells, and is thought of as an immunostimulatory cytokine due to its capacity to induce Th1 differentiation. However, many studies have also identified various immunosuppressive effects of IL-27 signaling, including suppression of Th17 differentiation and induction of co-inhibitory receptors on T cells. Thus, the exact role of IL-27 in the context of infectious diseases remains a topic of debate and active research. Additionally, as recent interest has focused on clinical management of acute vs. chronic infections, and life-threatening “cytokine storm” from sepsis, we propose a hypothetical model to explain the biphasic role of IL-27 during the early and late phases of immune responses to reconcile its known pro and anti-inflammatory functions, which could be therapeutically regulated to improve patient outcomes of infection.
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Affiliation(s)
- Yugo Morita
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, United States.,Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, United States
| | - Elysia A Masters
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, United States.,Department of Biomedical Engineering, University of Rochester Medical Center, Rochester, NY, United States
| | - Edward M Schwarz
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, United States.,Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, United States.,Department of Biomedical Engineering, University of Rochester Medical Center, Rochester, NY, United States
| | - Gowrishankar Muthukrishnan
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, United States.,Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, United States
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10
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Cytotoxicity and anti-inflammatory effect of a novel diminazene aceturate derivative in bovine mammary epithelial cells. Res Vet Sci 2021; 137:102-110. [PMID: 33964615 DOI: 10.1016/j.rvsc.2021.04.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 03/23/2021] [Accepted: 04/19/2021] [Indexed: 11/22/2022]
Abstract
Diminazene aceturate (DA) has been used in the treatment of infections of trypanosomes in animals. Interestingly, its anti-inflammatory effect has recently gained increased interests. However, DA has been reported to have toxic side effects that limit its application. Therefore, we synthesized and screened a novel low-toxic DA derivative, namely the DA derivative 3 (DAD3). In the present study, anti-inflammatory effect of DAD3 was evaluated bovine mammary epithelial cells (BMECs) in vitro model. The results demonstrated that DAD3 had less cytotoxicity, and had a stronger effect in inhibiting secretion of inflammatory factors in BMECs, compared to DA. Mechanistically, DAD3 was able to inhibit the production of pro-inflammatory factors in part by suppressing the generation of mitochondrial reactive oxygen species (ROS) in BMECs upon LPS stimulation. Molecular analysis further indicated that DAD3 was capable of resolving inflammation in BMECs through a mechanism by preventing nuclear translocation of NF-p65, subsequently inhibiting transcription of inflammatory factors. In this context, DAD3 inhibited the phosphorylation of IκB, ERK, JNK and P-38 proteins of nuclear factor-kappa B (NF-κB) and mitogen-activated protein kinase (MAPK) signaling pathways. These results suggested the DAD3 was a novel DA derivative with low toxicity and strong anti-inflammatory effects in BMECs exposed to LPS, through a mechanism by blocking the NF-κB and MAPK signaling pathways. This study also provides an evidence that the DAD3 may be a novel anti-inflammatory agents warranted for further investigation in treatment of mastitis in cows.
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11
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Structural Similarity with Cholesterol Reveals Crucial Insights into Mechanisms Sustaining the Immunomodulatory Activity of the Mycotoxin Alternariol. Cells 2020; 9:cells9040847. [PMID: 32244540 PMCID: PMC7226804 DOI: 10.3390/cells9040847] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/20/2020] [Accepted: 03/25/2020] [Indexed: 02/06/2023] Open
Abstract
The proliferation of molds in domestic environments can lead to uncontrolled continuous exposure to mycotoxins. Even if not immediately symptomatic, this may result in chronic effects, such as, for instance, immunosuppression or allergenic promotion. Alternariol (AOH) is one of the most abundant mycotoxins produced by Alternaria alternata fungi, proliferating among others in fridges, as well as in humid walls. AOH was previously reported to have immunomodulatory potential. However, molecular mechanisms sustaining this effect remained elusive. In differentiated THP-1 macrophages, AOH hardly altered the secretion of pro-inflammatory mediators when co-incubated with lipopolysaccharide (LPS), opening up the possibility that the immunosuppressive potential of the toxin could be related to an alteration of a downstream pro-inflammatory signaling cascade. Intriguingly, the mycotoxin affected the membrane fluidity in macrophages and it synergistically reacted with the cholesterol binding agent MβCD. In silico modelling revealed the potential of the mycotoxin to intercalate in cholesterol-rich membrane domains, like caveolae, and immunofluorescence showed the modified interplay of caveolin-1 with Toll-like Receptor (TLR) 4. In conclusion, we identified the structural similarity with cholesterol as one of the key determinants of the immunomodulatory potential of AOH.
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Hepatoprotective effect of ultrasonicated ginseng berry extract on a rat mild bile duct ligation model. J Ginseng Res 2019; 43:606-617. [PMID: 31695567 PMCID: PMC6823758 DOI: 10.1016/j.jgr.2018.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 04/27/2018] [Accepted: 07/17/2018] [Indexed: 12/28/2022] Open
Abstract
Background The Panax ginseng berry extract (GBE) is well known to have an antidiabetic effect. The aim of this study is to evaluate and investigate the protective effect of ultrasonication-processed P. ginseng berry extract (UGBE) compared with GBE on liver fibrosis induced by mild bile duct ligation (MBDL) model in rats. After ultrasonication process, the composition ratio of ginsenoside in GBE was changed. The component ratio of ginsenosides Rh1, Rh4, Rg2, Rg3, Rk1, Rk3, and F4 in the extract was elevated. Methods In this study, the protective effect of the newly developed UGBE was evaluated on hepatotoxicity and neuronal damage in MBDL model. Silymarin (150 mg/kg) was used for positive control. UGBE (100 mg/kg, 250 mg/kg, 500 mg/kg), GBE (250 mg/kg), and silymarin (150 mg/kg) were orally administered for 6 weeks after MBDL surgery. Results The MBDL surgery induced severe hepatotoxicity that leads to liver inflammation in rats. Also, the serum ammonia level was increased by MBDL surgery. However, the liver dysfunction of MBDL surgery–operated rats was attenuated by UGBE treatment via myeloid differentiation factor 88-dependent Toll-like receptor 4 signaling pathways. Conclusion UGBE has a protective effect on liver fibrosis induced by MBDL in rats through inhibition of the TLR4 signaling pathway in liver.
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Chiba Y, Mizoguchi I, Furusawa J, Hasegawa H, Ohashi M, Xu M, Owaki T, Yoshimoto T. Interleukin-27 Exerts Its Antitumor Effects by Promoting Differentiation of Hematopoietic Stem Cells to M1 Macrophages. Cancer Res 2017; 78:182-194. [PMID: 29093008 DOI: 10.1158/0008-5472.can-17-0960] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 08/25/2017] [Accepted: 10/27/2017] [Indexed: 11/16/2022]
Abstract
The interleukin IL27 promotes expansion and differentiation of hematopoietic stem cells into myeloid progenitor cells. Many tumor-infiltrating myeloid cells exert immunosuppressive effects, but we hypothesized that the myeloid cells induced by IL27 would have antitumor activity. In this study, we corroborated this hypothesis as investigated in two distinct mouse transplantable tumor models. Malignant mouse cells engineered to express IL27 exhibited reduced tumor growth in vivo Correlated with this effect was a significant increase in the number of tumor-infiltrating CD11b+ myeloid cells exhibiting a reduced immunosuppressive activity. Notably, these CD11b+ cells were characterized by an activated M1 macrophage phenotype, on the basis of increased expression of inducible nitric oxide synthase and other M1 biomarkers. In vivo depletion of these cells by administering anti-Gr-1 eradicated the antitumor effects of IL27. When admixed with parental tumors, CD11b+ cells inhibited tumor growth and directly killed the tumor in a nitric oxide-dependent manner. Mechanistically, IL27 expanded Lineage-Sca-1+c-Kit+ cells in bone marrow. Transplant experiments in Ly5.1/5.2 congenic mice revealed that IL27 directly acted on these cells and promoted their differentiation into M1 macrophages, which mobilized into tumors. Overall, our results illustrated how IL27 exerts antitumor activity by enhancing the generation of myeloid progenitor cells that can differentiate into antitumorigenic M1 macrophages.Significance: These findings show how the interleukin IL27 exerts potent antitumor activity by enhancing the generation of myeloid progenitor cells that can differentiate into antitumorigenic M1 macrophages.Cancer Res; 78(1); 182-94. ©2017 AACR.
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Affiliation(s)
- Yukino Chiba
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Izuru Mizoguchi
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Junichi Furusawa
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Hideaki Hasegawa
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Mio Ohashi
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Mingli Xu
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Toshiyuki Owaki
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Takayuki Yoshimoto
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan.
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McLean MH, Andrews C, Hanson ML, Baseler WA, Anver MR, Senkevitch E, Staniszewska AK, Smith C, Davies LC, Hixon J, Li W, Shen W, Steidler L, Durum SK. Interleukin-27 Is a Potential Rescue Therapy for Acute Severe Colitis Through Interleukin-10-Dependent, T-Cell-Independent Attenuation of Colonic Mucosal Innate Immune Responses. Inflamm Bowel Dis 2017; 23:1983-1995. [PMID: 29019857 PMCID: PMC5796760 DOI: 10.1097/mib.0000000000001274] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND If treatment with intravenous steroids fail, inflammatory bowel disease patients with acute severe colitis face systemic anti-tumor necrosis factor biologic rescue therapy or colectomy. Interleukin (IL)-27 is a cytokine with an immunosuppressive role in adaptive immune responses. However, the IL-27 receptor complex is also expressed on innate immune cells, and there is evidence that IL-27 can impact the function of innate cell subsets, although this particular functionality in vivo is not understood. Our aim was to define the efficacy of IL-27 in acute severe colitis and characterize novel IL-27-driven mechanisms of immunosuppression in the colonic mucosa. METHODS We assessed oral delivery of Lactococcus lactis expressing an IL-27 hyperkine on the innate immune response in vivo in a genetically intact, noninfective, acute murine colitis model induced by intrarectal instillation of 2,4,6-trinitrobenzenesulfonic acid in SJL/J mice. RESULTS IL-27 attenuates acute severe colitis through the reduction of colonic mucosal neutrophil infiltrate associated with a decreased CXC chemokine gradient. This suppression was T cell independent and IL-10 dependent, initially featuring enhanced mucosal IL-10. IL-27 was associated with a reduction in colonic proinflammatory cytokines and induced a multifocal, strong, positive nuclear expression of phosphorylated STAT-1 in mucosal epithelial cells. CONCLUSION We have defined novel mechanisms of IL-27 immunosuppression toward colonic innate immune responses in vivo. Mucosal delivery of IL-27 has translational potential as a novel therapeutic for inflammatory bowel disease, and it is a future mucosal directed rescue therapy in acute severe inflammatory bowel disease.
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Affiliation(s)
- Mairi H McLean
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
- School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Scotland, AB25 2ZD, UK
| | - Caroline Andrews
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | - Miranda L Hanson
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | - Walter A Baseler
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | - Miriam R Anver
- Pathology/Histotechnology Laboratory, Laboratory Animal Sciences Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, 21702, USA
| | - Emilee Senkevitch
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | - Aleksandra K Staniszewska
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
- School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Scotland, AB25 2ZD, UK
| | - Christopher Smith
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
- School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Scotland, AB25 2ZD, UK
| | - Luke C Davies
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | - Julie Hixon
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | - Wenqeng Li
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | - Wei Shen
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
| | | | - Scott K Durum
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, 21702, USA
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Amirtharaj GJ, Natarajan SK, Pulimood A, Balasubramanian KA, Venkatraman A, Ramachandran A. Role of Oxygen Free Radicals, Nitric Oxide and Mitochondria in Mediating Cardiac Alterations During Liver Cirrhosis Induced by Thioacetamide. Cardiovasc Toxicol 2017; 17:175-184. [PMID: 27131982 DOI: 10.1007/s12012-016-9371-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Thioacetamide (TAA) administration is widely used for induction of liver cirrhosis in rats, where reactive oxygen radicals (ROS) and nitric oxide (NO) participate in development of liver damage. Cardiac dysfunction is an important complication of liver cirrhosis, but the role of ROS or NO in cardiac abnormalities during liver cirrhosis is not well understood. This was investigated in animals after TAA-induced liver cirrhosis and temporal changes in oxidative stress, NO and mitochondrial function in the heart evaluated. TAA induced elevation in cardiac levels of nitrate before development of frank liver cirrhosis, without gross histological alterations. This was accompanied by an early induction of P38 MAP kinase, which is influenced by ROS and plays an important signaling role for induction of iNOS. Increased nitrotyrosine, protein oxidation and lipid peroxidation in the heart and cardiac mitochondria, suggestive of oxidative stress, also preceded frank liver cirrhosis. However, compromised cardiac mitochondrial function with a decrease in respiratory control ratio and increased mitochondrial swelling was seen later, when cirrhosis was evident. In conclusion, TAA induces elevations in ROS and NO in the heart in parallel to early liver damage. This leads to later development of functional deficits in cardiac mitochondria after development of liver cirrhosis.
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Affiliation(s)
- G Jayakumar Amirtharaj
- The Wellcome Trust Research Laboratory, Division of Gastrointestinal Sciences, Christian Medical College, Ida Scudder Road, Vellore, 632004, India
| | - Sathish Kumar Natarajan
- The Wellcome Trust Research Laboratory, Division of Gastrointestinal Sciences, Christian Medical College, Ida Scudder Road, Vellore, 632004, India
| | - Anna Pulimood
- The Wellcome Trust Research Laboratory, Division of Gastrointestinal Sciences, Christian Medical College, Ida Scudder Road, Vellore, 632004, India
| | - K A Balasubramanian
- The Wellcome Trust Research Laboratory, Division of Gastrointestinal Sciences, Christian Medical College, Ida Scudder Road, Vellore, 632004, India
| | - Aparna Venkatraman
- Center for Stem Cell Research, Christian Medical College, Ida Scudder Road, Vellore, 632004, India
| | - Anup Ramachandran
- The Wellcome Trust Research Laboratory, Division of Gastrointestinal Sciences, Christian Medical College, Ida Scudder Road, Vellore, 632004, India.
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Umemoto T, Matsuzaki Y, Shiratsuchi Y, Hashimoto M, Yoshimoto T, Nakamura-Ishizu A, Petrich B, Yamato M, Suda T. Integrin αvβ3 enhances the suppressive effect of interferon-γ on hematopoietic stem cells. EMBO J 2017; 36:2390-2403. [PMID: 28673932 DOI: 10.15252/embj.201796771] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 05/17/2017] [Accepted: 05/30/2017] [Indexed: 12/19/2022] Open
Abstract
Hematopoietic homeostasis depends on the maintenance of hematopoietic stem cells (HSCs), which are regulated within a specialized bone marrow (BM) niche. When HSC sense external stimuli, their adhesion status may be critical for determining HSC cell fate. The cell surface molecule, integrin αvβ3, is activated through HSC adhesion to extracellular matrix and niche cells. Integrin β3 signaling maintains HSCs within the niche. Here, we showed the synergistic negative regulation of the pro-inflammatory cytokine interferon-γ (IFNγ) and β3 integrin signaling in murine HSC function by a novel definitive phenotyping of HSCs. Integrin αvβ3 suppressed HSC function in the presence of IFNγ and impaired integrin β3 signaling mitigated IFNγ-dependent negative action on HSCs. During IFNγ stimulation, integrin β3 signaling enhanced STAT1-mediated gene expression via serine phosphorylation. These findings show that integrin β3 signaling intensifies the suppressive effect of IFNγ on HSCs, which indicates that cell adhesion via integrin αvβ3 within the BM niche acts as a context-dependent signal modulator to regulate the HSC function under both steady-state and inflammatory conditions.
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Affiliation(s)
- Terumasa Umemoto
- International Research Center for Medical Science, Kumamoto University, Kumamoto, Japan
| | - Yu Matsuzaki
- International Research Center for Medical Science, Kumamoto University, Kumamoto, Japan
| | - Yoshiko Shiratsuchi
- Institute of Advanced Medical Bioscience and Engineering, Tokyo Women's Medical University, Tokyo, Japan
| | - Michihiro Hashimoto
- International Research Center for Medical Science, Kumamoto University, Kumamoto, Japan
| | - Takayuki Yoshimoto
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Ayako Nakamura-Ishizu
- Cancer Science Institute of Singapore, National University of Singapore, Singapore City, Singapore
| | - Brian Petrich
- Department of Pediatrics and Aflac Cancer and Blood Disorders Center, Emory University School of Medicine, Atlanta, GA, USA
| | - Masayuki Yamato
- Institute of Advanced Medical Bioscience and Engineering, Tokyo Women's Medical University, Tokyo, Japan
| | - Toshio Suda
- International Research Center for Medical Science, Kumamoto University, Kumamoto, Japan .,Cancer Science Institute of Singapore, National University of Singapore, Singapore City, Singapore
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Petes C, Wynick C, Guzzo C, Mehta D, Logan S, Banfield BW, Basta S, Cooper A, Gee K. IL-27 enhances LPS-induced IL-1β in human monocytes and murine macrophages. J Leukoc Biol 2017; 102:83-94. [PMID: 28377398 DOI: 10.1189/jlb.3a0316-098r] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 02/17/2017] [Accepted: 03/16/2017] [Indexed: 11/24/2022] Open
Abstract
IL-27 bridges innate and adaptive immunity by modulating cytokine production from myeloid cells and regulating Th cell differentiation. During bacterial infection, TLR4 triggering by LPS induces IL-27 production by monocytes and macrophages. We have previously shown that IL-27 can prime monocytes for LPS responsiveness by enhancing TLR4 expression and intracellular signaling. If unregulated, this could result in damaging inflammation, whereas on the other hand, this may also provide greater responses by inflammatory processes induced in response to bacterial pathogens. A key process in fine-tuning inflammatory responses is activation of the inflammasome, which ultimately results in IL-1β production. Herein, we investigated the molecular mechanisms by which IL-27 modulates LPS-induced IL-1β secretion in monocytes and macrophages. We found that when delivered simultaneously with LPS, IL-27 augments activation of caspase-1 and subsequent release of IL-1β. Furthermore, we determined that IL-27 primes cells for enhanced IL-1β production by up-regulating surface expression of TLR4 and P2X purinoceptor 7 (P2X7) for enhanced LPS and ATP signaling, respectively. These findings provide new evidence that IL-27 plays an important role in the proinflammatory capacity of monocytes and macrophages via enhancing IL-1β secretion levels triggered by dual LPS-ATP stimulation.
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Affiliation(s)
- Carlene Petes
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Christopher Wynick
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Christina Guzzo
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada.,Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA; and
| | - Divya Mehta
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Sarah Logan
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Bruce W Banfield
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Sameh Basta
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Andrea Cooper
- Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
| | - Katrina Gee
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada;
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Gao P, Yuan M, Ma X, Jiang W, Zhu L, Wen M, Xu J, Liu Q, An H. Transcription factor Fli-1 positively regulates lipopolysaccharide-induced interleukin-27 production in macrophages. Mol Immunol 2016; 71:184-191. [PMID: 26900987 DOI: 10.1016/j.molimm.2016.02.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 02/06/2016] [Accepted: 02/09/2016] [Indexed: 11/19/2022]
Abstract
IL-27 is an important regulator of TLR4-activated innate immune. The mechanism by which IL-27 production is regulated in TLR4-activated innate immune remains largely unclear. Here we show that expression of transcription factor Fli-1 at protein level is increased in macrophages following LPS stimulation. Fli-1 overexpression increases LPS-activated IL-27 production in macrophages. Consistently, Fli-1 knockdown inhibits LPS-induced IL-27 production in macrophages. Chromatin immunoprecipitation (ChIP) assay reveals that Fli-1 binds the promoter of IL-27 p28 subunit. Further experiments manifest that Fli-1 binds the region between -250 and -150 bp upstream of the transcriptional start site of p28 gene and increases p28 gene promoter-controlled transcription. These results demonstrate that Fli-1 positively regulates IL-27 production in TLR4-activated immune response by promoting transcription of IL-27 p28 gene.
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Affiliation(s)
- Peng Gao
- Cancer Institute, Institute of Translational Medicine, Second Military Medical University, Shanghai 200433, China
| | - Ming Yuan
- National Key Laboratory of Medical Immunology & Institute of Immunology, Second Military Medical University, Shanghai 200433, China
| | - Xianwei Ma
- Cancer Institute, Institute of Translational Medicine, Second Military Medical University, Shanghai 200433, China
| | - Wei Jiang
- Cancer Institute, Institute of Translational Medicine, Second Military Medical University, Shanghai 200433, China
| | - Lingxi Zhu
- Cancer Institute, Institute of Translational Medicine, Second Military Medical University, Shanghai 200433, China
| | - Mingyue Wen
- National Key Laboratory of Medical Immunology & Institute of Immunology, Second Military Medical University, Shanghai 200433, China
| | - Jing Xu
- Cancer Institute, Institute of Translational Medicine, Second Military Medical University, Shanghai 200433, China
| | - Qiuyan Liu
- National Key Laboratory of Medical Immunology & Institute of Immunology, Second Military Medical University, Shanghai 200433, China.
| | - Huazhang An
- Cancer Institute, Institute of Translational Medicine, Second Military Medical University, Shanghai 200433, China.
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Zhang L, Huang C, Guo Y, Gou X, Hinsdale M, Lloyd P, Liu L. MicroRNA-26b Modulates the NF-κB Pathway in Alveolar Macrophages by Regulating PTEN. THE JOURNAL OF IMMUNOLOGY 2015; 195:5404-14. [PMID: 26503952 DOI: 10.4049/jimmunol.1402933] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 09/23/2015] [Indexed: 02/06/2023]
Abstract
NF-κB is one of the best-characterized transcription factors, providing the link between early membrane-proximal signaling events and changes in many inflammatory genes. MicroRNAs are small noncoding RNAs that regulate gene expression at the posttranscriptional level. In this study, we evaluated the role of miR-26b in the LPS-induced inflammatory response in bovine alveolar macrophages (bAMs). LPS stimulation of bAMs upregulated miR-26b at 1 h and downregulated it at 6 and 36 h. Overexpression of miR-26b in bAMs enhanced the LPS-induced mRNA expression of proinflammatory cytokines and chemokines, including TNF-α, IL-1β, IL-8, and IL-10, but it directly inhibited that of IL-6. A similar trend was observed for the release of these cytokines and chemokines from bAMs. miR-26b directly bound the 3'-untranslated region of PTEN, leading to the reduction of PTEN protein in bAMs. miR-26b also enhanced the LPS-induced NF-κB signaling pathway, as revealed by increased NF-κB transcriptional activity and phosphorylation of p65, IκBα, IκB kinase, and Akt. Moreover, PTEN silencing increased the LPS-induced mRNA expression of TNF-α, IL-1β, IL-6, IL-8, and IL-10 and upregulated the NF-κB pathway. Taken together, we conclude that miR-26b participates in the inflammatory response of LPS-stimulated bAMs by modulating the NF-κB pathway through targeting PTEN.
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Affiliation(s)
- Li Zhang
- Oklahoma Center for Respiratory and Infectious Diseases, Oklahoma State University, Stillwater, OK 74078; Lundberg-Kienlen Lung Biology and Toxicology Laboratory, Oklahoma State University, Stillwater, OK 74078; Department of Physiological Sciences, Oklahoma State University, Stillwater, OK 74078; and
| | - Chaoqun Huang
- Oklahoma Center for Respiratory and Infectious Diseases, Oklahoma State University, Stillwater, OK 74078; Lundberg-Kienlen Lung Biology and Toxicology Laboratory, Oklahoma State University, Stillwater, OK 74078; Department of Physiological Sciences, Oklahoma State University, Stillwater, OK 74078; and
| | - Yujie Guo
- Oklahoma Center for Respiratory and Infectious Diseases, Oklahoma State University, Stillwater, OK 74078; Lundberg-Kienlen Lung Biology and Toxicology Laboratory, Oklahoma State University, Stillwater, OK 74078; Department of Physiological Sciences, Oklahoma State University, Stillwater, OK 74078; and
| | - Xuxu Gou
- Oklahoma Center for Respiratory and Infectious Diseases, Oklahoma State University, Stillwater, OK 74078; Lundberg-Kienlen Lung Biology and Toxicology Laboratory, Oklahoma State University, Stillwater, OK 74078; Department of Physiological Sciences, Oklahoma State University, Stillwater, OK 74078; and
| | - Myron Hinsdale
- Oklahoma Center for Respiratory and Infectious Diseases, Oklahoma State University, Stillwater, OK 74078; Department of Physiological Sciences, Oklahoma State University, Stillwater, OK 74078; and Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 74126
| | - Pamela Lloyd
- Oklahoma Center for Respiratory and Infectious Diseases, Oklahoma State University, Stillwater, OK 74078; Department of Physiological Sciences, Oklahoma State University, Stillwater, OK 74078; and
| | - Lin Liu
- Oklahoma Center for Respiratory and Infectious Diseases, Oklahoma State University, Stillwater, OK 74078; Lundberg-Kienlen Lung Biology and Toxicology Laboratory, Oklahoma State University, Stillwater, OK 74078; Department of Physiological Sciences, Oklahoma State University, Stillwater, OK 74078; and
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de Oliveira FA, Barreto AS, Bomfim LGS, Leite TRS, dos Santos PL, de Almeida RP, da Silva ÂM, Duthie MS, Reed SG, de Moura TR, Ribeiro de Jesus A. Soluble CD40 Ligand in Sera of Subjects Exposed to Leishmania infantum Infection Reduces the Parasite Load in Macrophages. PLoS One 2015; 10:e0141265. [PMID: 26488744 PMCID: PMC4619201 DOI: 10.1371/journal.pone.0141265] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 10/05/2015] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND While CD40L is typically a membrane glycoprotein expressed on activated T cells and platelets that binds and activates CD40 on the surface on antigen presenting cells, a soluble derivative (sCD40L) that appears to retain its biological activity after cleavage from cell membrane also exists. We recently reported that sCD40L is associated with clinical resolution of visceral leishmaniasis and protection against the disease. In the present study we investigated if this sCD40L is functional and exerts anti-parasitic effect in L. infantum-infected macrophages. METHODOLOGY/PRINCIPAL FINDINGS Macrophages from normal human donors were infected with L. infantum promastigotes and incubated with either sera from subjects exposed to L. infantum infection, monoclonal antibodies against human CD40L, or an isotype control antibody. We then evaluated infection by counting the number of infected cells and the number of parasites in each cell. We also measured a variety of immune modulatory cytokines in these macrophage culture supernatants by Luminex assay. The addition of sCD40L, either recombinant or from infected individuals' serum, decreased both the number of infected macrophages and number of intracellular parasites. Moreover, this treatment increased the production of IL-12, IL-23, IL-27, IL-15, and IL1β such that negative correlations between the levels of these cytokines with both the infection ratio and number of intracellular parasites were observed. CONCLUSIONS/SIGNIFICANCE sCD40L from sera of subjects exposed to L. infantum is functional and improves both the control of parasite and production of inflamatory cytokines of infected macrophages. Although the mechanisms involved in parasite killing are still unclear and require further exploration, these findings indicate a protective role of sCD40L in visceral leishmaniasis.
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Affiliation(s)
| | - Aline Silva Barreto
- Laboratório de Biologia Molecular, Hospital Universitário, Universidade Federal de Sergipe, Aracaju, Brazil
| | - Lays G. S. Bomfim
- Laboratório de Biologia Molecular, Hospital Universitário, Universidade Federal de Sergipe, Aracaju, Brazil
| | - Talita Rebeca S. Leite
- Laboratório de Biologia Molecular, Hospital Universitário, Universidade Federal de Sergipe, Aracaju, Brazil
| | - Priscila Lima dos Santos
- Laboratório de Biologia Molecular, Hospital Universitário, Universidade Federal de Sergipe, Aracaju, Brazil
| | - Roque Pacheco de Almeida
- Laboratório de Biologia Molecular, Hospital Universitário, Universidade Federal de Sergipe, Aracaju, Brazil
- Instituto de Investigação em Imunologia, São Paulo, Brazil
| | - Ângela Maria da Silva
- Laboratório de Biologia Molecular, Hospital Universitário, Universidade Federal de Sergipe, Aracaju, Brazil
| | - Malcolm S. Duthie
- Infectious Disease Research Institute (IDRI), Seattle, Washington, United States of America
| | - Steven G. Reed
- Infectious Disease Research Institute (IDRI), Seattle, Washington, United States of America
| | - Tatiana Rodrigues de Moura
- Laboratório de Biologia Molecular, Hospital Universitário, Universidade Federal de Sergipe, Aracaju, Brazil
| | - Amélia Ribeiro de Jesus
- Laboratório de Biologia Molecular, Hospital Universitário, Universidade Federal de Sergipe, Aracaju, Brazil
- Instituto de Investigação em Imunologia, São Paulo, Brazil
- * E-mail:
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Yu J, Yao H, Gao X, Zhang Z, Wang JF, Xu SW. The role of nitric oxide and oxidative stress in intestinal damage induced by selenium deficiency in chickens. Biol Trace Elem Res 2015; 163:144-53. [PMID: 25388754 DOI: 10.1007/s12011-014-0164-8] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 10/23/2014] [Indexed: 01/12/2023]
Abstract
Nitric oxide (NO) is an essential messenger molecule and is associated with inflammation and oxidative stress. Although NO has important biological functions in mammals, its role in the mechanism that occurs after intestinal injuries in chickens remains unknown. The objective of the present study was to investigate the real role of NO and oxidative stress in the intestinal injuries of chickens induced by selenium (Se) deficiency. A total 150 chickens were randomly divided into the following two groups: a low-Se group (L group, fed a Se-deficient diet containing 0.020 mg/kg Se) and a control group (C group, fed a commercial diet containing 0.2 mg/kg Se). The activities and mRNA levels of glutathione peroxidase (GSH-Px), the production of glutathione (GSH) and NO, and the protein and mRNA levels of inducible nitric oxide synthase (iNOS) were examined in the intestinal tissues (duodenum, jejunum, and rectum) at 15, 25, 35, 45, and 55 days. Methane dicarboxylic aldehyde (MDA) levels were also detected by assay kits. Then, the morphologies of the tissues were observed under the microscope after hematoxylin and eosin staining (H&E staining). The results showed that Se deficiency induced higher inflammatory damage and MDA levels (P < 0.05), which were accompanied by higher levels of iNOS and NO but lower levels of GSH and GSH-Px (P < 0.05). Our results indicated that Se deficiency induced oxidative damage in the intestinal tracts of chickens and that low levels of GSH-Px and high contents of NO may exert a major role in the injury of the intestinal tract induced by Se deficiency.
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Affiliation(s)
- Jiao Yu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, People's Republic of China
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Abdalla AE, Li Q, Xie L, Xie J. Biology of IL-27 and its role in the host immunity against Mycobacterium tuberculosis. Int J Biol Sci 2015; 11:168-75. [PMID: 25561899 PMCID: PMC4279092 DOI: 10.7150/ijbs.10464] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 11/16/2014] [Indexed: 11/09/2022] Open
Abstract
IL-27, a heterodimeric cytokine of IL-12 family, regulates both innate and adaptive immunity largely via Jak-Stat signaling. IL-27 can induce IFN-γ and inflammatory mediators from T lymphocytes and innate immune cells. IL-27 has unique anti-inflammatory properties via both Tr1 cells dependent and independent mechanisms. Here the role and biology of IL-27 in innate and adaptive immunity are summarized, with special interest with immunity against Mycobacterium tuberculosis.
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Affiliation(s)
- Abualgasim Elgaili Abdalla
- 1. Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Beibei, Chongqing 400715, China
- 2. Department of Clinical Microbiology, College of Medical Laboratory Sciences, Omdurman Islamic University, Omdurman, Khartoum, Sudan
| | - Qiming Li
- 1. Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Beibei, Chongqing 400715, China
| | - Longxiang Xie
- 1. Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Beibei, Chongqing 400715, China
| | - Jianping Xie
- 1. Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Beibei, Chongqing 400715, China
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Wynick C, Petes C, Gee K. Interleukin-27 Mediates Inflammation During Chronic Disease. J Interferon Cytokine Res 2014; 34:741-9. [DOI: 10.1089/jir.2013.0154] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Affiliation(s)
- Christopher Wynick
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada
| | - Carlene Petes
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada
| | - Katrina Gee
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Canada
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Li MF, Sun BG, Xiao ZZ, Sun L. First characterization of a teleost Epstein-Barr virus-induced gene 3 (EBI3) reveals a regulatory effect of EBI3 on the innate immune response of peripheral blood leukocytes. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2013; 41:514-522. [PMID: 23932982 DOI: 10.1016/j.dci.2013.07.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Revised: 07/30/2013] [Accepted: 07/30/2013] [Indexed: 05/29/2023]
Abstract
Epstein-Barr virus-induced gene 3 (EBI3) encodes a protein that in mammals is known to be a subunit of interleukin (IL)-27 and IL-35, both which regulate cytokine production and inflammatory response. To date, no studies on fish EBI3 have been documented. In this work, we report the identification of an EBI3 homologue, CsEBI3, from tongue sole (Cynoglossus semilaevis) and analysis of its expression and biological effect. CsEBI3 is composed of 245 amino acid residues and possesses a Fibronectin type 3 (FN3) domain that is preserved in lower and higher vertebrates. Expression of CsEBI3 was detected in a wide range of tissues, in particular those of immune relevant organs, and upregulated in a time-dependent manner by experimental challenge with bacterial and viral pathogens. Bacterial infection of peripheral blood leukocytes (PBL) enhanced CsEBI3 expression and caused extracellular secretion of CsEBI3. Purified recombinant CsEBI3 (rCsEBI3) stimulated the respiratory burst activity of PBL and upregulated the expression of IL-1β, IL-8, Myd88, interferon-induced gene 15, CD28, and chemokines. In contrast, rCsEBI3M, a mutant CsEBI3 that lacks the FN3 domain failed to activate PBL and induced much weaker expression of the immune genes. Treatment of PBL with rCsEBI3, but not with the mutant rCsEBI3M, enhanced cellular resistance against bacterial invasion, whereas antibody blocking of CsEBI3 on PBL significantly reduced cellular resistance against bacterial infection. Taken together, these results indicate for the first time that a teleost EBI3 possesses immunoregulatory property in a manner that is dependent on the conserved FN3 domain, and that CsEBI3 is involved in the innate immune defense of PBL against microbial pathogens.
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Affiliation(s)
- Mo-fei Li
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
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25
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Abstract
A growing body of evidence suggests an essential role of the heterodimeric cytokine, IL-27, for regulating immunity. IL-27 is composed of two subunits (p28 and EBI3) and is classified as a member of the IL-12 family of cytokines. APCs have been recognized as a major cellular source of IL-27 following activation with microbial products or IFNs (types I and II). In this review, we describe the current knowledge of the implications of IL-27 during the pathogenesis of infectious and autoimmune diseases. Experimental studies have used genetically targeted IL-27RA-/- mice, EBI3-/- mice, and p28-/- mice or involved study designs with administration of bioengineered IL-27/IL-27RA homologs. Whereas many reports have described that IL-27 suppresses inflammation, we also review the current literature, suggesting promotion of inflammation by IL-27 in some settings. Recent advances have also been made in understanding the cross-talk of cleavage products of the complement system with IL-27-mediated immune responses. Additional data on IL-27 have been obtained recently by observational studies in human patients with acute and chronic inflammatory diseases. Collectively, the findings from the past decade identify IL-27 as a critical immunoregulatory cytokine, especially for T cells, whereas some controversy is fueled by results challenging the view of IL-27 as a classical silencer of inflammation.
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Affiliation(s)
- Markus Bosmann
- 1.University of Michigan Medical School, 1301 Catherine Rd., Ann Arbor, MI 48109-5602, USA.
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Kawanokuchi J, Takeuchi H, Sonobe Y, Mizuno T, Suzumura A. Interleukin-27 promotes inflammatory and neuroprotective responses in microglia. ACTA ACUST UNITED AC 2013. [DOI: 10.1111/cen3.12005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Jun Kawanokuchi
- Department of Neuroimmunology; Research Institute of Environmental Medicine; Nagoya University; Nagoya; Japan
| | - Hideyuki Takeuchi
- Department of Neuroimmunology; Research Institute of Environmental Medicine; Nagoya University; Nagoya; Japan
| | - Yoshifumi Sonobe
- Department of Neuroimmunology; Research Institute of Environmental Medicine; Nagoya University; Nagoya; Japan
| | - Tetsuya Mizuno
- Department of Neuroimmunology; Research Institute of Environmental Medicine; Nagoya University; Nagoya; Japan
| | - Akio Suzumura
- Department of Neuroimmunology; Research Institute of Environmental Medicine; Nagoya University; Nagoya; Japan
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