1
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Ravindran A, Holappa L, Niskanen H, Skovorodkin I, Kaisto S, Beter M, Kiema M, Selvarajan I, Nurminen V, Aavik E, Aherrahrou R, Pasonen-Seppänen S, Fortino V, Laakkonen JP, Ylä-Herttuala S, Vainio S, Örd T, Kaikkonen MU. Translatome profiling reveals Itih4 as a novel smooth muscle cell-specific gene in atherosclerosis. Cardiovasc Res 2024; 120:869-882. [PMID: 38289873 PMCID: PMC11218691 DOI: 10.1093/cvr/cvae028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 12/01/2023] [Accepted: 12/12/2023] [Indexed: 02/01/2024] Open
Abstract
AIMS Vascular smooth muscle cells (SMCs) and their derivatives are key contributors to the development of atherosclerosis. However, studying changes in SMC gene expression in heterogeneous vascular tissues is challenging due to the technical limitations and high cost associated with current approaches. In this paper, we apply translating ribosome affinity purification sequencing to profile SMC-specific gene expression directly from tissue. METHODS AND RESULTS To facilitate SMC-specific translatome analysis, we generated SMCTRAP mice, a transgenic mouse line expressing enhanced green fluorescent protein (EGFP)-tagged ribosomal protein L10a (EGFP-L10a) under the control of the SMC-specific αSMA promoter. These mice were further crossed with the atherosclerosis model Ldlr-/-, ApoB100/100 to generate SMCTRAP-AS mice and used to profile atherosclerosis-associated SMCs in thoracic aorta samples of 15-month-old SMCTRAP and SMCTRAP-AS mice. Our analysis of SMCTRAP-AS mice showed that EGFP-L10a expression was localized to SMCs in various tissues, including the aortic wall and plaque. The TRAP fraction demonstrated high enrichment of known SMC-specific genes, confirming the specificity of our approach. We identified several genes, including Cemip, Lum, Mfge8, Spp1, and Serpina3, which are known to be involved in atherosclerosis-induced gene expression. Moreover, we identified several novel genes not previously linked to SMCs in atherosclerosis, such as Anxa4, Cd276, inter-alpha-trypsin inhibitor-4 (Itih4), Myof, Pcdh11x, Rab31, Serpinb6b, Slc35e4, Slc8a3, and Spink5. Among them, we confirmed the SMC-specific expression of Itih4 in atherosclerotic lesions using immunofluorescence staining of mouse aortic roots and spatial transcriptomics of human carotid arteries. Furthermore, our more detailed analysis of Itih4 showed its link to coronary artery disease through the colocalization of genome-wide association studies, splice quantitative trait loci (QTL), and protein QTL signals. CONCLUSION We generated a SMC-specific TRAP mouse line to study atherosclerosis and identified Itih4 as a novel SMC-expressed gene in atherosclerotic plaques, warranting further investigation of its putative function in extracellular matrix stability and genetic evidence of causality.
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MESH Headings
- Animals
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Atherosclerosis/genetics
- Atherosclerosis/metabolism
- Atherosclerosis/pathology
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Disease Models, Animal
- Aortic Diseases/genetics
- Aortic Diseases/pathology
- Aortic Diseases/metabolism
- Ribosomal Proteins/genetics
- Ribosomal Proteins/metabolism
- Plaque, Atherosclerotic
- Mice, Inbred C57BL
- Male
- Gene Expression Regulation
- Gene Expression Profiling
- Phenotype
- Transcriptome
- Receptors, LDL/genetics
- Receptors, LDL/metabolism
- Apolipoprotein B-100/genetics
- Apolipoprotein B-100/metabolism
- Mice, Knockout
- Humans
- Green Fluorescent Proteins/genetics
- Green Fluorescent Proteins/metabolism
- Mice
- Mice, Transgenic
- Aorta/metabolism
- Aorta/pathology
- Female
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Affiliation(s)
- Aarthi Ravindran
- A.I.Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, 70211 Kuopio, Finland
| | - Lari Holappa
- A.I.Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, 70211 Kuopio, Finland
| | - Henri Niskanen
- A.I.Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, 70211 Kuopio, Finland
| | - Ilya Skovorodkin
- Disease networks research unit, Faculty of Biochemistry and Molecular Medicine, Kvantum Institute, Infotech Oulu, University of Oulu, Oulu, Finland
| | - Susanna Kaisto
- Disease networks research unit, Faculty of Biochemistry and Molecular Medicine, Kvantum Institute, Infotech Oulu, University of Oulu, Oulu, Finland
| | - Mustafa Beter
- A.I.Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, 70211 Kuopio, Finland
| | - Miika Kiema
- A.I.Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, 70211 Kuopio, Finland
| | - Ilakya Selvarajan
- A.I.Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, 70211 Kuopio, Finland
| | - Valtteri Nurminen
- A.I.Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, 70211 Kuopio, Finland
| | - Einari Aavik
- A.I.Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, 70211 Kuopio, Finland
| | - Rédouane Aherrahrou
- A.I.Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, 70211 Kuopio, Finland
- Institute for Cardiogenetics, Universität zu Lübeck, 23562 Lübeck, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, University Heart Centre Lübeck, 23562 Lübeck, Germany
| | - Sanna Pasonen-Seppänen
- Institute of Biomedicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Vittorio Fortino
- Institute of Biomedicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Johanna P Laakkonen
- A.I.Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, 70211 Kuopio, Finland
| | - Seppo Ylä-Herttuala
- A.I.Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, 70211 Kuopio, Finland
| | - Seppo Vainio
- Disease networks research unit, Faculty of Biochemistry and Molecular Medicine, Kvantum Institute, Infotech Oulu, University of Oulu, Oulu, Finland
| | - Tiit Örd
- A.I.Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, 70211 Kuopio, Finland
| | - Minna U Kaikkonen
- A.I.Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, 70211 Kuopio, Finland
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2
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Izumi Y, O’Dell KA, Cashikar AG, Paul SM, Covey DF, Mennerick SJ, Zorumski CF. Neurosteroids mediate and modulate the effects of pro-inflammatory stimulation and toll-like receptors on hippocampal plasticity and learning. PLoS One 2024; 19:e0304481. [PMID: 38875235 PMCID: PMC11178232 DOI: 10.1371/journal.pone.0304481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 05/13/2024] [Indexed: 06/16/2024] Open
Abstract
Pro-inflammatory changes contribute to multiple neuropsychiatric illnesses. Understanding how these changes are involved in illnesses and identifying strategies to alter inflammatory responses offer paths to potentially novel treatments. We previously found that acute pro-inflammatory stimulation with high (μg/ml) lipopolysaccharide (LPS) for 10-15 min dampens long-term potentiation (LTP) in the hippocampus and impairs learning. Effects of LPS involved non-canonical inflammasome signaling but were independent of toll-like receptor 4 (TLR4), a known LPS receptor. Low (ng/ml) LPS also inhibits LTP when administered for 2-4 h, and here we report that this LPS exposure requires TLR4. We also found that effects of low LPS on LTP involve the oxysterol, 25-hydroxycholesterol, akin to high LPS. Effects of high LPS on LTP are blocked by inhibiting synthesis of 5α-reduced neurosteroids, indicating that neurosteroids mediate LTP inhibition. 5α-Neurosteroids also have anti-inflammatory effects, and we found that exogenous allopregnanolone (AlloP), a key 5α-reduced steroid, prevented effects of low but not high LPS on LTP. We also found that activation of TLR2, TLR3 and TLR7 inhibited LTP and that AlloP prevented the effects of TLR2 and TLR7, but not TLR3. The enantiomer of AlloP, a steroid that has anti-inflammatory actions but low activity at GABAA receptors, prevented LTP inhibition by TLR2, TLR3 and TLR7. In vivo, both AlloP enantiomers prevented LPS-induced learning defects. These studies indicate that neurosteroids play complex roles in network effects of acute neuroinflammation and have potential importance for development of AlloP analogues as therapeutic agents.
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Affiliation(s)
- Yukitoshi Izumi
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States of America
- The Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Kazuko A. O’Dell
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States of America
- The Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Anil G. Cashikar
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States of America
- The Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Steven M. Paul
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States of America
- The Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Douglas F. Covey
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States of America
- The Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States of America
- Developmental Biology and Anesthesiology, Washington University School of Medicine, St. Louis, MO, United States of America
- Developmental Biology, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Steven J. Mennerick
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States of America
- The Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States of America
| | - Charles F. Zorumski
- Departments of Psychiatry, Washington University School of Medicine, St. Louis, MO, United States of America
- The Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States of America
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3
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Foo CX, Fessler MB, Ronacher K. Oxysterols in Infectious Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1440:125-147. [PMID: 38036878 DOI: 10.1007/978-3-031-43883-7_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Oxysterols have emerged as important bioactive lipids in the immune response to infectious diseases. This chapter discusses our current knowledge of oxysterols and their receptors in bacterial and viral infections of the respiratory and gastrointestinal tracts. Oxysterols are produced in response to infections and have multiple roles including chemotaxis of immune cells to the site of infection and regulation of inflammation. Some oxysterols have been shown to possess antiviral or antibacterial activity.Lastly, we delve into the emerging mechanisms of action of oxysterols. Oxysterols can enhance host cell resistance via reduction of membrane accessible cholesterol, modulate membrane immune signalling, and impact inflammasome activation and efferocytosis.
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Affiliation(s)
- Cheng X Foo
- Mater Research Institute - The University of Queensland, Translational Research Institute, Brisbane, QLD, Australia
| | - Michael B Fessler
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA
| | - Katharina Ronacher
- Mater Research Institute - The University of Queensland, Translational Research Institute, Brisbane, QLD, Australia.
- Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, QLD, Australia.
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4
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Urano Y, Noguchi N. Enzymatically Formed Oxysterols and Cell Death. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1440:193-211. [PMID: 38036881 DOI: 10.1007/978-3-031-43883-7_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
The side-chain hydroxylation of cholesterol by specific enzymes produces 24(S)-hydroxycholesterol, 25-hydroxycholesterol, 27-hydroxycholesterol, and other products. These enzymatically formed side-chain oxysterols act as intermediates in the biosynthesis of bile acids and serve as signaling molecules that regulate cholesterol homeostasis. Besides these intracellular functions, an imbalance in oxysterol homeostasis is implicated in pathophysiology. Furthermore, growing evidence reveals that oxysterols affect cell proliferation and cause cell death. This chapter provides an overview of the pathophysiological role of side-chain oxysterols in developing human diseases. We also summarize our understanding of the molecular mechanisms underlying the induction of various forms of cell death by side-chain oxysterols.
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Affiliation(s)
- Yasuomi Urano
- Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto, Japan.
| | - Noriko Noguchi
- Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto, Japan
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5
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Wilcox NS, Yarovinsky TO, Pandya P, Ramgolam VS, Moro A, Wu Y, Nicoli S, Hirschi KK, Bender JR. Distinct hypoxia-induced translational profiles of embryonic and adult-derived macrophages. iScience 2023; 26:107985. [PMID: 38047075 PMCID: PMC10690575 DOI: 10.1016/j.isci.2023.107985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/21/2023] [Accepted: 09/15/2023] [Indexed: 12/05/2023] Open
Abstract
Tissue resident macrophages are largely of embryonic (fetal liver) origin and long-lived, while bone marrow-derived macrophages (BMDM) are recruited following an acute perturbation, such as hypoxia in the setting of myocardial ischemia. Prior transcriptome analyses identified BMDM and fetal liver-derived macrophage (FLDM) differences at the RNA expression level. Posttranscriptional regulation determining mRNA stability and translation rate may override transcriptional signals in response to hypoxia. We profiled differentially regulated BMDM and FLDM transcripts in response to hypoxia at the level of mRNA translation. Using a translating ribosome affinity purification (TRAP) assay and RNA-seq, we identified non-overlapping transcripts with increased translation rate in BMDM (Ly6e, vimentin, PF4) and FLDM (Ccl7, Ccl2) after hypoxia. We further identified hypoxia-induced transcripts within these subsets that are regulated by the RNA-binding protein HuR. These findings define translational differences in macrophage subset gene expression programs, highlighting potential therapeutic targets in ischemic myocardium.
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Affiliation(s)
- Nicholas S. Wilcox
- Department of Internal Medicine, Section of Cardiovascular Medicine, Yale Cardiovascular Research Center, New Haven, CT USA
- Department of Immunobiology, and Yale University School of Medicine, New Haven, CT 06511, USA
| | - Timur O. Yarovinsky
- Department of Internal Medicine, Section of Cardiovascular Medicine, Yale Cardiovascular Research Center, New Haven, CT USA
- Department of Immunobiology, and Yale University School of Medicine, New Haven, CT 06511, USA
| | - Prakruti Pandya
- Department of Internal Medicine, Section of Cardiovascular Medicine, Yale Cardiovascular Research Center, New Haven, CT USA
- Department of Immunobiology, and Yale University School of Medicine, New Haven, CT 06511, USA
| | - Vinod S. Ramgolam
- Department of Internal Medicine, Section of Cardiovascular Medicine, Yale Cardiovascular Research Center, New Haven, CT USA
- Department of Immunobiology, and Yale University School of Medicine, New Haven, CT 06511, USA
| | - Albertomaria Moro
- Department of Internal Medicine, Section of Cardiovascular Medicine, Yale Cardiovascular Research Center, New Haven, CT USA
- Department of Genetics, Yale University School of Medicine, New Haven, CT 06511, USA
| | - Yinyu Wu
- Department of Internal Medicine, Section of Cardiovascular Medicine, Yale Cardiovascular Research Center, New Haven, CT USA
- Department of Genetics, Yale University School of Medicine, New Haven, CT 06511, USA
| | - Stefania Nicoli
- Department of Internal Medicine, Section of Cardiovascular Medicine, Yale Cardiovascular Research Center, New Haven, CT USA
- Department of Genetics, Yale University School of Medicine, New Haven, CT 06511, USA
| | - Karen K. Hirschi
- Department of Internal Medicine, Section of Cardiovascular Medicine, Yale Cardiovascular Research Center, New Haven, CT USA
- Department of Genetics, Yale University School of Medicine, New Haven, CT 06511, USA
| | - Jeffrey R. Bender
- Department of Internal Medicine, Section of Cardiovascular Medicine, Yale Cardiovascular Research Center, New Haven, CT USA
- Department of Immunobiology, and Yale University School of Medicine, New Haven, CT 06511, USA
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6
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Fessler MB, Madenspacher JH, Baker PJ, Hilligan KL, Bohrer AC, Castro E, Meacham J, Chen SH, Johnson RF, McDonald JG, Martin NP, Tucker CJ, Mahapatra D, Cesta M, Mayer-Barber KD. Endogenous and Therapeutic 25-Hydroxycholesterols May Worsen Early SARS-CoV-2 Pathogenesis in Mice. Am J Respir Cell Mol Biol 2023; 69:638-648. [PMID: 37578898 DOI: 10.1165/rcmb.2023-0007oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 08/14/2023] [Indexed: 08/16/2023] Open
Abstract
Oxysterols (i.e., oxidized cholesterol species) have complex roles in biology. 25-Hydroxycholesterol (25HC), a product of the activity of cholesterol-25-hydroxylase (CH25H) on cholesterol, has recently been shown to be broadly antiviral, suggesting therapeutic potential against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, 25HC can also amplify inflammation and be converted by CYP7B1 (cytochrome P450 family 7 subfamily B member 1) to 7α,25-dihydroxycholesterol, a lipid with chemoattractant activity, via the G protein-coupled receptor EBI2 (Epstein-Barr virus-induced gene 2)/GPR183 (G protein-coupled receptor 183). Here, using in vitro studies and two different murine models of SARS-CoV-2 infection, we investigate the effects of these two oxysterols on SARS-CoV-2 pneumonia. We show that although 25HC and enantiomeric-25HC are antiviral in vitro against human endemic coronavirus-229E, they did not inhibit SARS-CoV-2; nor did supplemental 25HC reduce pulmonary SARS-CoV-2 titers in the K18-human ACE2 (angiotensin-converting enzyme 2) mouse model in vivo. Treatment with 25HC also did not alter immune cell influx into the airway, airspace cytokines, lung pathology, weight loss, symptoms, or survival but was associated with increased airspace albumin, an indicator of microvascular injury, and increased plasma proinflammatory cytokines. Conversely, mice treated with the EBI2/GPR183 inhibitor NIBR189 displayed a modest increase in lung viral load only at late time points but no change in weight loss. Consistent with these findings, although Ch25h and 25HC were upregulated in the lungs of SARS-CoV-2-infected wild-type mice, lung viral titers and weight loss in Ch25h-/- and Gpr183-/- mice infected with the β variant were similar to those in control animals. Taken together, endogenous 25HCs do not significantly regulate early SARS-CoV-2 replication or pathogenesis, and supplemental 25HC may have proinjury rather than therapeutic effects in SARS-CoV-2 pneumonia.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Reed F Johnson
- SARS-CoV-2 Virology Core, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Jeffrey G McDonald
- Department of Molecular Genetics and
- Center for Human Nutrition, University of Texas Southwestern Medical Center, Dallas, Texas; and
| | | | - Charles J Tucker
- Fluorescence Microscopy and Imaging Center, Signal Transduction Laboratory, and
| | | | - Mark Cesta
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina
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7
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Uppal S, Postnikova O, Villasmil R, Rogozin IB, Bocharov AV, Eggerman TL, Poliakov E, Redmond TM. Low-Density Lipoprotein Receptor (LDLR) Is Involved in Internalization of Lentiviral Particles Pseudotyped with SARS-CoV-2 Spike Protein in Ocular Cells. Int J Mol Sci 2023; 24:11860. [PMID: 37511618 PMCID: PMC10380832 DOI: 10.3390/ijms241411860] [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: 05/19/2023] [Revised: 07/16/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
Here, we present evidence that caveolae-mediated endocytosis using LDLR is the pathway for SARS-CoV-2 virus internalization in the ocular cell line ARPE-19. Firstly, we found that, while Angiotensin-converting enzyme 2 (ACE2) is expressed in these cells, blocking ACE2 by antibody treatment did not prevent infection by SARS-CoV-2 spike pseudovirions, nor did antibody blockade of extracellular vimentin and other cholesterol-rich lipid raft proteins. Next, we implicated the role of cholesterol homeostasis in infection by showing that incubating cells with different cyclodextrins and oxysterol 25-hydroxycholesterol (25-HC) inhibits pseudovirion infection of ARPE-19. However, the effect of 25-HC is likely not via cholesterol biosynthesis, as incubation with lovastatin did not appreciably affect infection. Additionally, is it not likely to be an agonistic effect of 25-HC on LXR receptors, as the LXR agonist GW3965 had no significant effect on infection of ARPE-19 cells at up to 5 μM GW3965. We probed the role of endocytic pathways but determined that clathrin-dependent and flotillin-dependent rafts were not involved. Furthermore, 20 µM chlorpromazine, an inhibitor of clathrin-mediated endocytosis (CME), also had little effect. In contrast, anti-dynamin I/II antibodies blocked the entry of SARS-CoV-2 spike pseudovirions, as did dynasore, a noncompetitive inhibitor of dynamin GTPase activity. Additionally, anti-caveolin-1 antibodies significantly blocked spike pseudotyped lentiviral infection of ARPE-19. However, nystatin, a classic inhibitor of caveolae-dependent endocytosis, did not affect infection while indomethacin inhibited only at 10 µM at the 48 h time point. Finally, we found that anti-LDLR antibodies block pseudovirion infection to a similar degree as anti-caveolin-1 and anti-dynamin I/II antibodies, while transfection with LDLR-specific siRNA led to a decrease in spike pseudotyped lentiviral infection, compared to scrambled control siRNAs. Thus, we conclude that SARS-CoV-2 spike pseudovirion infection in ARPE-19 cells is a dynamin-dependent process that is primarily mediated by LDLR.
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Affiliation(s)
- Sheetal Uppal
- Laboratory of Retinal Cell & Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Olga Postnikova
- Laboratory of Retinal Cell & Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Rafael Villasmil
- Flow Cytometry Core Facility, National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Igor B Rogozin
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA
| | | | - Thomas L Eggerman
- Clinical Center, National Institutes of Health, Bethesda, MD 20894, USA
- National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Eugenia Poliakov
- Laboratory of Retinal Cell & Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - T Michael Redmond
- Laboratory of Retinal Cell & Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA
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8
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Madenspacher JH, Morrell ED, McDonald JG, Thompson BM, Li Y, Birukov KG, Birukova AA, Stapleton RD, Alejo A, Karmaus PW, Meacham JM, Rai P, Mikacenic C, Wurfel MM, Fessler MB. 25-Hydroxycholesterol exacerbates vascular leak during acute lung injury. JCI Insight 2023; 8:e155448. [PMID: 36821369 PMCID: PMC10132150 DOI: 10.1172/jci.insight.155448] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 02/21/2023] [Indexed: 02/24/2023] Open
Abstract
Cholesterol-25-hydroxylase (CH25H), the biosynthetic enzyme for 25-hydroxycholesterol (25HC), is most highly expressed in the lung, but its role in lung biology is poorly defined. Recently, we reported that Ch25h is induced in monocyte-derived macrophages recruited to the airspace during resolution of lung inflammation and that 25HC promotes liver X receptor-dependent (LXR-dependent) clearance of apoptotic neutrophils by these cells. Ch25h and 25HC are, however, also robustly induced by lung-resident cells during the early hours of lung inflammation, suggesting additional cellular sources and targets. Here, using Ch25h-/- mice and exogenous 25HC in lung injury models, we provide evidence that 25HC sustains proinflammatory cytokines in the airspace and augments lung injury, at least in part, by inducing LXR-independent endoplasmic reticulum stress and endothelial leak. Suggesting an autocrine effect in endothelium, inhaled LPS upregulates pulmonary endothelial Ch25h, and non-hematopoietic Ch25h deletion is sufficient to confer lung protection. In patients with acute respiratory distress syndrome, airspace 25HC and alveolar macrophage CH25H were associated with markers of microvascular leak, endothelial activation, endoplasmic reticulum stress, inflammation, and clinical severity. Taken together, our findings suggest that 25HC deriving from and acting on different cell types in the lung communicates distinct, temporal LXR-independent and -dependent signals to regulate inflammatory homeostasis.
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Affiliation(s)
- Jennifer H. Madenspacher
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, North Carolina, USA
| | - Eric D. Morrell
- Section of Pulmonary, Critical Care, and Sleep Medicine, Harborview Medical Center, Seattle, Washington, USA
| | - Jeffrey G. McDonald
- Center for Human Nutrition and
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | | | - Yue Li
- Department of Anesthesiology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Konstantin G. Birukov
- Department of Anesthesiology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Anna A. Birukova
- Department of Anesthesiology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Renee D. Stapleton
- Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Aidin Alejo
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, North Carolina, USA
| | - Peer W. Karmaus
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, North Carolina, USA
| | - Julie M. Meacham
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, North Carolina, USA
| | - Prashant Rai
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, North Carolina, USA
| | - Carmen Mikacenic
- Section of Pulmonary, Critical Care, and Sleep Medicine, Harborview Medical Center, Seattle, Washington, USA
| | - Mark M. Wurfel
- Section of Pulmonary, Critical Care, and Sleep Medicine, Harborview Medical Center, Seattle, Washington, USA
| | - Michael B. Fessler
- Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, North Carolina, USA
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9
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Conlon TM, Yildirim AÖ. Oxysterol metabolism dictates macrophage influx during SARS-CoV-2 infection. Eur Respir J 2023; 61:13993003.02417-2022. [PMID: 36858446 DOI: 10.1183/13993003.02417-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 02/07/2023] [Indexed: 03/03/2023]
Affiliation(s)
- Thomas M Conlon
- Institute of Lung Health and Immunity (LHI), Comprehensive Pneumology Center (CPC), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Ali Önder Yildirim
- Institute of Lung Health and Immunity (LHI), Comprehensive Pneumology Center (CPC), Helmholtz Munich, Member of the German Center for Lung Research (DZL), Munich, Germany
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10
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Canfrán-Duque A, Rotllan N, Zhang X, Andrés-Blasco I, Thompson BM, Sun J, Price NL, Fernández-Fuertes M, Fowler JW, Gómez-Coronado D, Sessa WC, Giannarelli C, Schneider RJ, Tellides G, McDonald JG, Fernández-Hernando C, Suárez Y. Macrophage-Derived 25-Hydroxycholesterol Promotes Vascular Inflammation, Atherogenesis, and Lesion Remodeling. Circulation 2023; 147:388-408. [PMID: 36416142 PMCID: PMC9892282 DOI: 10.1161/circulationaha.122.059062] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 10/20/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND Cross-talk between sterol metabolism and inflammatory pathways has been demonstrated to significantly affect the development of atherosclerosis. Cholesterol biosynthetic intermediates and derivatives are increasingly recognized as key immune regulators of macrophages in response to innate immune activation and lipid overloading. 25-Hydroxycholesterol (25-HC) is produced as an oxidation product of cholesterol by the enzyme cholesterol 25-hydroxylase (CH25H) and belongs to a family of bioactive cholesterol derivatives produced by cells in response to fluctuating cholesterol levels and immune activation. Despite the major role of 25-HC as a mediator of innate and adaptive immune responses, its contribution during the progression of atherosclerosis remains unclear. METHODS The levels of 25-HC were analyzed by liquid chromatography-mass spectrometry, and the expression of CH25H in different macrophage populations of human or mouse atherosclerotic plaques, respectively. The effect of CH25H on atherosclerosis progression was analyzed by bone marrow adoptive transfer of cells from wild-type or Ch25h-/- mice to lethally irradiated Ldlr-/- mice, followed by a Western diet feeding for 12 weeks. Lipidomic, transcriptomic analysis and effects on macrophage function and signaling were analyzed in vitro from lipid-loaded macrophage isolated from Ldlr-/- or Ch25h-/-;Ldlr-/- mice. The contribution of secreted 25-HC to fibrous cap formation was analyzed using a smooth muscle cell lineage-tracing mouse model, Myh11ERT2CREmT/mG;Ldlr-/-, adoptively transferred with wild-type or Ch25h-/- mice bone marrow followed by 12 weeks of Western diet feeding. RESULTS We found that 25-HC accumulated in human coronary atherosclerotic lesions and that macrophage-derived 25-HC accelerated atherosclerosis progression, promoting plaque instability through autocrine and paracrine actions. 25-HC amplified the inflammatory response of lipid-loaded macrophages and inhibited the migration of smooth muscle cells within the plaque. 25-HC intensified inflammatory responses of lipid-laden macrophages by modifying the pool of accessible cholesterol in the plasma membrane, which altered Toll-like receptor 4 signaling, promoted nuclear factor-κB-mediated proinflammatory gene expression, and increased apoptosis susceptibility. These effects were independent of 25-HC-mediated modulation of liver X receptor or SREBP (sterol regulatory element-binding protein) transcriptional activity. CONCLUSIONS Production of 25-HC by activated macrophages amplifies their inflammatory phenotype, thus promoting atherogenesis.
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Affiliation(s)
- Alberto Canfrán-Duque
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Comparative Medicine. Yale University School of Medicine, New Haven, Connecticut, USA
| | - Noemi Rotllan
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Comparative Medicine. Yale University School of Medicine, New Haven, Connecticut, USA
| | - Xinbo Zhang
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Comparative Medicine. Yale University School of Medicine, New Haven, Connecticut, USA
| | - Irene Andrés-Blasco
- Department of Comparative Medicine. Yale University School of Medicine, New Haven, Connecticut, USA
- Genomics and Diabetes Unit, Health Research Institute Clinic Hospital of Valencia (INCLIVA), Valencia, Spain
| | - Bonne M Thompson
- Center for Human Nutrition. University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Jonathan Sun
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Pathology. Yale University School of Medicine, New Haven, Connecticut, USA
| | - Nathan L Price
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Comparative Medicine. Yale University School of Medicine, New Haven, Connecticut, USA
| | - Marta Fernández-Fuertes
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Comparative Medicine. Yale University School of Medicine, New Haven, Connecticut, USA
| | - Joseph W. Fowler
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Pharmacology Yale University School of Medicine, New Haven, Connecticut, USA
| | - Diego Gómez-Coronado
- Servicio Bioquímica-Investigación, Hospital Universitario Ramón y Cajal, IRyCIS, Madrid, and CIBER de Fisiopatología de la Obesidad y Nutrición, Instituto de Salud Carlos III, Spain
| | - William C. Sessa
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Pharmacology Yale University School of Medicine, New Haven, Connecticut, USA
| | - Chiara Giannarelli
- Department of Medicine, Cardiology, NYU Grossman School of Medicine, New York, New York, USA
- Department of Pathology, NYU Grossman School of Medicine, New York, New York, USA
| | - Robert J Schneider
- Department of Microbiology, New York University School of Medicine, New York, NY 10016, USA
| | - George Tellides
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Surgery, Yale University School of Medicine, New Haven, Connecticut, 06520 USA
| | - Jeffrey G McDonald
- Center for Human Nutrition. University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Carlos Fernández-Hernando
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Comparative Medicine. Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Pathology. Yale University School of Medicine, New Haven, Connecticut, USA
| | - Yajaira Suárez
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, Connecticut, USA
- Yale Center for Molecular and System Metabolism, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Comparative Medicine. Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Pathology. Yale University School of Medicine, New Haven, Connecticut, USA
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11
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Urano Y, Osaki S, Chiba R, Noguchi N. Integrated stress response is involved in the 24(S)-hydroxycholesterol-induced unconventional cell death mechanism. Cell Death Dis 2022; 8:406. [PMID: 36195595 PMCID: PMC9532424 DOI: 10.1038/s41420-022-01197-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 09/14/2022] [Accepted: 09/21/2022] [Indexed: 01/11/2023]
Abstract
Perturbation of proteostasis triggers the adaptive responses that contribute to the homeostatic pro-survival response, whereas disruption of proteostasis can ultimately lead to cell death. Brain-specific oxysterol-i.e., 24(S)-hydroxycholesterol (24S-OHC)-has been shown to cause cytotoxicity when esterified by acyl-CoA:cholesterol acyltransferase 1 (ACAT1) in the endoplasmic reticulum (ER). Here, we show that the accumulation of 24S-OHC esters caused phosphorylation of eukaryotic translation initiator factor 2α (eIF2α), dissociation of polysomes, and formation of stress granules (SG), resulting in robust downregulation of global protein de novo synthesis in human neuroblastoma SH-SY5Y cells. We also found that integrated stress response (ISR) activation through PERK and GCN2 activation induced by 24S-OHC treatment caused eIF2α phosphorylation. 24S-OHC-inducible SG formation and cell death were suppressed by inhibition of ISR. These results show that ACAT1-mediated 24S-OHC esterification induced ISR and formation of SG, which play crucial roles in 24S-OHC-inducible protein synthesis inhibition and unconventional cell death.
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Affiliation(s)
- Yasuomi Urano
- Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyoto, 610-0394, Japan.
| | - Shoya Osaki
- Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyoto, 610-0394, Japan
| | - Ren Chiba
- Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyoto, 610-0394, Japan
| | - Noriko Noguchi
- Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyoto, 610-0394, Japan.
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12
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Fessler MB, Madenspacher J, Baker PJ, Hilligan KL, Castro E, Meacham J, Chen SH, Johnson RF, Martin NP, Tucker C, Mahapatra D, Cesta M, Mayer-Barber KD. Evaluation of endogenous and therapeutic 25-hydroxycholesterols in murine models of pulmonary SARS-CoV-2 infection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2022:2022.09.12.507671. [PMID: 36263064 PMCID: PMC9580384 DOI: 10.1101/2022.09.12.507671] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Oxysterols (i.e., oxidized cholesterol species) have complex roles in biology. 25-hydroxycholesterol (25HC), a product of activity of cholesterol-25-hydroxylase (CH25H) upon cholesterol, has recently been shown to be broadly antiviral, suggesting therapeutic potential against SARS-CoV-2. However, 25HC can also amplify inflammation and tissue injury and be converted by CYP7B1 to 7α,25HC, a lipid with chemoattractant activity via the G protein-coupled receptor, EBI2/GPR183. Here, using in vitro studies and two different murine models of SARS-CoV-2 infection, we investigate the effects of these two oxysterols on SARS-CoV-2 pneumonia. We show that while 25HC and enantiomeric-25HC are antiviral in vitro against human endemic coronavirus-229E, they did not inhibit SARS-CoV-2; nor did supplemental 25HC reduce pulmonary SARS-CoV-2 titers in the K18-human ACE2 mouse model in vivo. 25HC treatment also did not alter immune cell influx into the airway, airspace cytokines, lung pathology, weight loss, symptoms, or survival but was associated with increased airspace albumin, an indicator of microvascular injury, and increased plasma pro-inflammatory cytokines. Conversely, mice treated with the EBI2/GPR183 inhibitor NIBR189 displayed a modest increase in lung viral load only at late time points, but no change in weight loss. Consistent with these findings, although Ch25h was upregulated in the lungs of SARS-CoV-2-infected WT mice, lung viral titers and weight loss in Ch25h-/- and Gpr183-/- mice infected with the beta variant were similar to control animals. Taken together, endogenous 25-hydroxycholesterols do not significantly regulate early SARS-CoV-2 replication or pathogenesis and supplemental 25HC may have pro-injury rather than therapeutic effects in SARS-CoV-2 pneumonia.
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Affiliation(s)
- Michael B. Fessler
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709
| | - Jennifer Madenspacher
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709
| | - Paul J. Baker
- Inflammation & Innate Immunity Unit, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Kerry L. Hilligan
- Immunobiology Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Ehydel Castro
- Inflammation & Innate Immunity Unit, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Julie Meacham
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709
| | - Shih-Heng Chen
- Viral Vector Core Facility, Neurobiology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709
| | - Reed F. Johnson
- SARS-CoV-2 Virology Core, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Negin P. Martin
- Viral Vector Core Facility, Neurobiology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709
| | - C.J. Tucker
- Fluorescence Microscopy and Imaging Center, Signal Transduction Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709
| | | | - Mark Cesta
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709
| | - Katrin D. Mayer-Barber
- Inflammation & Innate Immunity Unit, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
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13
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Branche E, Wang YT, Viramontes KM, Valls Cuevas JM, Xie J, Ana-Sosa-Batiz F, Shafee N, Duttke SH, McMillan RE, Clark AE, Nguyen MN, Garretson AF, Crames JJ, Spann NJ, Zhu Z, Rich JN, Spector DH, Benner C, Shresta S, Carlin AF. SREBP2-dependent lipid gene transcription enhances the infection of human dendritic cells by Zika virus. Nat Commun 2022; 13:5341. [PMID: 36097162 PMCID: PMC9465152 DOI: 10.1038/s41467-022-33041-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 08/29/2022] [Indexed: 02/07/2023] Open
Abstract
The emergence of Zika virus (ZIKV) as a global health threat has highlighted the unmet need for ZIKV-specific vaccines and antiviral treatments. ZIKV infects dendritic cells (DC), which have pivotal functions in activating innate and adaptive antiviral responses; however, the mechanisms by which DC function is subverted to establish ZIKV infection are unclear. Here we develop a genomics profiling method that enables discrete analysis of ZIKV-infected versus neighboring, uninfected primary human DCs to increase the sensitivity and specificity with which ZIKV-modulated pathways can be identified. The results show that ZIKV infection specifically increases the expression of genes enriched for lipid metabolism-related functions. ZIKV infection also increases the recruitment of sterol regulatory element-binding protein (SREBP) transcription factors to lipid gene promoters, while pharmacologic inhibition or genetic silencing of SREBP2 suppresses ZIKV infection of DCs. Our data thus identify SREBP2-activated transcription as a mechanism for promoting ZIKV infection amenable to therapeutic targeting.
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Affiliation(s)
- Emilie Branche
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, 92037, USA
| | - Ying-Ting Wang
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, 92037, USA
| | - Karla M Viramontes
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, 92037, USA
| | - Joan M Valls Cuevas
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, 92037, USA
| | - Jialei Xie
- Department of Medicine, School of Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Fernanda Ana-Sosa-Batiz
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, 92037, USA
| | - Norazizah Shafee
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, 92037, USA
| | - Sascha H Duttke
- School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, WA, 99163, USA
| | - Rachel E McMillan
- Department of Medicine, School of Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
- Biomedical Sciences Graduate Program, University of California, La Jolla, CA, 92093, USA
| | - Alex E Clark
- Department of Medicine, School of Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
- Department of Cellular and Molecular Medicine, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA
| | - Michael N Nguyen
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, 92037, USA
| | - Aaron F Garretson
- Department of Medicine, School of Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Jan J Crames
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, 92037, USA
| | - Nathan J Spann
- Department of Cellular and Molecular Medicine, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA
| | - Zhe Zhu
- Department of Medicine, Division of Regenerative Medicine, University of California San Diego, La Jolla, CA, 92093, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, 92037, USA
| | - Jeremy N Rich
- Department of Medicine, Division of Regenerative Medicine, University of California San Diego, La Jolla, CA, 92093, USA
- Department of Neurology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania; Department of Neurology, University of Pittsburgh, Pittsburgh, PA, 15232, USA
| | - Deborah H Spector
- Department of Cellular and Molecular Medicine, School of Medicine, University of California San Diego, La Jolla, CA, 92093, USA
| | - Christopher Benner
- Department of Medicine, School of Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Sujan Shresta
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, 92037, USA.
| | - Aaron F Carlin
- Department of Medicine, School of Medicine, University of California, San Diego, La Jolla, CA, 92093, USA.
- Department of Pathology, School of Medicine, University of California, San Diego, La Jolla, CA, 92093, USA.
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14
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The Evolutionary Dance between Innate Host Antiviral Pathways and SARS-CoV-2. Pathogens 2022; 11:pathogens11050538. [PMID: 35631059 PMCID: PMC9147806 DOI: 10.3390/pathogens11050538] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 04/29/2022] [Accepted: 04/30/2022] [Indexed: 02/04/2023] Open
Abstract
Compared to what we knew at the start of the SARS-CoV-2 global pandemic, our understanding of the interplay between the interferon signaling pathway and SARS-CoV-2 infection has dramatically increased. Innate antiviral strategies range from the direct inhibition of viral components to reprograming the host’s own metabolic pathways to block viral infection. SARS-CoV-2 has also evolved to exploit diverse tactics to overcome immune barriers and successfully infect host cells. Herein, we review the current knowledge of the innate immune signaling pathways triggered by SARS-CoV-2 with a focus on the type I interferon response, as well as the mechanisms by which SARS-CoV-2 impairs those defenses.
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15
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Oxysterols in the Immune Response to Bacterial and Viral Infections. Cells 2022; 11:cells11020201. [PMID: 35053318 PMCID: PMC8773517 DOI: 10.3390/cells11020201] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/06/2022] [Accepted: 01/06/2022] [Indexed: 02/08/2023] Open
Abstract
Oxidized cholesterols, the so-called oxysterols, are widely known to regulate cholesterol homeostasis. However, more recently oxysterols have emerged as important lipid mediators in the response to both bacterial and viral infections. This review summarizes our current knowledge of selected oxysterols and their receptors in the control of intracellular bacterial growth as well as viral entry into the host cell and viral replication. Lastly, we briefly discuss the potential of oxysterols and their receptors as drug targets for infectious and inflammatory diseases.
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16
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Serquiña AKP, Tagawa T, Oh D, Mahesh G, Ziegelbauer JM. 25-Hydroxycholesterol Inhibits Kaposi's Sarcoma Herpesvirus and Epstein-Barr Virus Infections and Activates Inflammatory Cytokine Responses. mBio 2021; 12:e0290721. [PMID: 34781692 PMCID: PMC8593836 DOI: 10.1128/mbio.02907-21] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 10/07/2021] [Indexed: 12/29/2022] Open
Abstract
Oncogenic gammaherpesviruses express viral products during latent and lytic infection that block the innate immune response. Previously, we found that Kaposi's sarcoma herpesvirus (KSHV/human herpesvirus-8) viral microRNAs (miRNAs) downregulate cholesterol biogenesis, and we hypothesized that this prevents the production of 25-hydroxycholesterol (25HC), a cholesterol derivative. 25HC blocks KSHV de novo infection of primary endothelial cells at a postentry step and decreases viral gene expression of LANA (latency-associated nuclear antigen) and RTA. Herein we expanded on this observation by determining transcriptomic changes associated with 25HC treatment of primary endothelial cells using RNA sequencing (RNA-Seq). We found that 25HC treatment inhibited KSHV gene expression and induced interferon-stimulated genes (ISGs) and several inflammatory cytokines (interleukin 8 [IL-8], IL-1α). Some 25HC-induced genes were partially responsible for the broadly antiviral effect of 25HC against several viruses. Additionally, we found that 25HC inhibited infection of primary B cells by a related oncogenic virus, Epstein-Barr virus (EBV/human herpesvirus-4) by suppressing key viral genes such as LMP-1 and inducing apoptosis. RNA-Seq analysis revealed that IL-1 and IL-8 pathways were induced by 25HC in both primary endothelial cells and B cells. We also found that the gene encoding cholesterol 25-hydroxylase (CH25H), which converts cholesterol to 25HC, can be induced by type I interferon (IFN) in human B cell-enriched peripheral blood mononuclear cells (PBMCs). We propose a model wherein viral miRNAs target the cholesterol pathway to prevent 25HC production and subsequent induction of antiviral ISGs. Together, these results answer some important questions about a widely acting antiviral (25HC), with implications for multiple viral and bacterial infections. IMPORTANCE A cholesterol derivative, 25-hydroxycholesterol (25HC), has been demonstrated to inhibit infections from widely different bacteria and viruses, including severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). However, its mechanism of activity is still not fully understood. In this work, we look at gene expression changes in the host and virus after 25HC treatment to find clues about its antiviral activity. We likewise demonstrate that 25HC is also antiviral against EBV, a common cancer-causing virus. We compared our results with previous data from antiviral screening assays and found the same pathways resulting in antiviral activity. Together, these results bring us closer to understanding how a modified form of cholesterol works against several viruses.
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Affiliation(s)
- Anna K. P. Serquiña
- HIV and AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Takanobu Tagawa
- HIV and AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Daniel Oh
- HIV and AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Guruswamy Mahesh
- HIV and AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Joseph M. Ziegelbauer
- HIV and AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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17
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Takahashi H, Nomura H, Iriki H, Kubo A, Isami K, Mikami Y, Mukai M, Sasaki T, Yamagami J, Kudoh J, Ito H, Kamata A, Kurebayashi Y, Yoshida H, Yoshimura A, Sun HW, Suematsu M, O’Shea JJ, Kanno Y, Amagai M. Cholesterol 25-hydroxylase is a metabolic switch to constrain T cell-mediated inflammation in the skin. Sci Immunol 2021; 6:eabb6444. [PMID: 34623903 PMCID: PMC9780739 DOI: 10.1126/sciimmunol.abb6444] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Interleukin-27 (IL-27) is an immunoregulatory cytokine whose essential function is to limit immune responses. We found that the gene encoding cholesterol 25-hydroxylase (Ch25h) was induced in CD4+ T cells by IL-27, enhanced by transforming growth factor–β (TGF-β), and antagonized by T-bet. Ch25h catalyzes cholesterol to generate 25-hydroxycholesterol (25OHC), which was subsequently released to the cellular milieu, functioning as a modulator of T cell response. Extracellular 25OHC suppressed cholesterol biosynthesis in T cells, inhibited cell growth, and induced nutrient deprivation cell death without releasing high-mobility group box 1 (HMGB1). This growth inhibitory effect was specific to actively proliferating cells with high cholesterol demand and was reversed when extracellular cholesterol was replenished. Ch25h-expressing CD4+ T cells that received IL-27 and TGF-β signals became refractory to 25OHC-mediated growth inhibition in vitro. Nonetheless, IL-27–treated T cells negatively affected viability of bystander cells in a paracrine manner, but only if the bystander cells were in the early phases of activation. In mouse models of skin inflammation due to autoreactive T cells or chemically induced hypersensitivity, genetic deletion of Ch25h or Il27ra led to worse outcomes. Thus, Ch25h is an immunoregulatory metabolic switch induced by IL-27 and dampens excess bystander T effector expansion in tissues through its metabolite derivative, 25OHC. This study reveals regulation of cholesterol metabolism as a modality for controlling tissue inflammation and thus represents a mechanism underlying T cell immunoregulatory functions.
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Affiliation(s)
- Hayato Takahashi
- Department of Dermatology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Hisashi Nomura
- Department of Dermatology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Hisato Iriki
- Department of Dermatology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Akiko Kubo
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Koichi Isami
- Department of Dermatology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yohei Mikami
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda MD 20892, USA
- Present address: Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Miho Mukai
- Department of Dermatology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Takashi Sasaki
- Center for Supercentenarian Medical Research, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Jun Yamagami
- Department of Dermatology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Jun Kudoh
- Laboratory of Gene Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Hiromi Ito
- Department of Dermatology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Aki Kamata
- Department of Dermatology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yutaka Kurebayashi
- Department of Pathology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Hiroki Yoshida
- Division of Molecular and Cellular Immunoscience, Department of Biomolecular Sciences, Faculty of Medicine, Saga University, Saga 849-8501, Japan
| | - Akihiko Yoshimura
- Department of Immunology and Microbiology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Hong-Wei Sun
- Biodata Mining and Discovery Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda MD 20892, USA
| | - Makoto Suematsu
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Jonh J. O’Shea
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda MD 20892, USA
| | - Yuka Kanno
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda MD 20892, USA
| | - Masayuki Amagai
- Department of Dermatology, Keio University School of Medicine, Tokyo 160-8582, Japan
- Laboratory for Skin Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
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18
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Watanabe Y, Sasaki T, Miyoshi S, Shimizu M, Yamauchi Y, Sato R. Insulin-induced genes INSIG1 and INSIG2 mediate oxysterol-dependent activation of the PERK-eIF2α-ATF4 axis. J Biol Chem 2021; 297:100989. [PMID: 34298014 PMCID: PMC8363831 DOI: 10.1016/j.jbc.2021.100989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 07/12/2021] [Accepted: 07/19/2021] [Indexed: 11/06/2022] Open
Abstract
Insulin-induced genes (INSIGs) encode endoplasmic reticulum–resident proteins that regulate intracellular cholesterol metabolism. Oxysterols are oxygenated derivatives of cholesterol, some of which orchestrate lipid metabolism via interaction with INSIGs. Recently, it was reported that expression of activating transcription factor-4 (ATF4) was induced by certain oxysterols; the precise of mechanism is unclear. Herein, we show that INSIGs mediate ATF4 upregulation upon interaction with oxysterol. Oxysterols that possess a high affinity for INSIG, such as 27- and 25-hydroxycholesterol (25HC), markedly induced the increase of ATF4 protein when compared with other oxysterols. In addition, ATF4 upregulation by these oxysterols was attenuated in INSIG1/2-deficient Chinese hamster ovary cells and recovered by either INSIG1 or INSIG2 rescue. Mechanistic studies revealed that the binding of 25HC to INSIG is critical for increased ATF4 protein via activation of protein kinase RNA-activated–like ER kinase and eukaryotic translation initiation factor 2α. Knockout of INSIG1 or INSIG2 in human hepatoma Huh7 cells attenuated ATF4 protein upregulation, indicating that only one of the endogenous INSIGs, unlike overexpression of intrinsic INSIG1 or INSIG2, was insufficient for ATF4 induction. Furthermore, ATF4 proactively upregulated the cell death–inducible gene expression, such as Chop, Chac1, and Trb3, thereby markedly reducing cell viability with 25HC. These findings support a model whereby that INSIGs sense an increase in oxysterol in the endoplasmic reticulum and induce an increase of ATF4 protein via the protein kinase RNA-activated–like ER kinase–eukaryotic translation initiation factor 2α pathway, thereby promoting cell death.
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Affiliation(s)
- Yuichi Watanabe
- Food Biochemistry Laboratory, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Takashi Sasaki
- Food Biochemistry Laboratory, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Shoko Miyoshi
- Food Biochemistry Laboratory, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Makoto Shimizu
- Nutri-Life Science Laboratory, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Yoshio Yamauchi
- Food Biochemistry Laboratory, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
| | - Ryuichiro Sato
- Food Biochemistry Laboratory, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan; Nutri-Life Science Laboratory, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan; AMED-CREST, Japan Agency for Medical Research and Development, Tokyo, Japan.
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19
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Li H, Zhao Z, Li X, Qin L, Wen W, Chen H, Qian P. Cholesterol-25-Hydroxylase Suppresses Seneca Valley Virus Infection via Producing 25-Hydroxycholesterol to Block Adsorption Procedure. Virol Sin 2021; 36:1210-1219. [PMID: 34061318 DOI: 10.1007/s12250-021-00377-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 09/22/2020] [Indexed: 10/21/2022] Open
Abstract
Cholesterol-25-hydroxylase (CH25H) is a membrane protein associated with endoplasmic reticulum, and it is an interferon-stimulated factor regulated by interferon. CH25H catalyzes cholesterol to produce 25-hydroxycholesterol (25HC) by adding a second hydroxyl to the 25th carbon atom of cholesterol. Recent studies have shown that both CH25H and 25HC could inhibit the replication of many viruses. In this study, we found that ectopic expression of CH25H in HEK-293T and BHK-21 cell lines could inhibit the replication of Seneca Valley virus (SVV) and that there was no species difference. On the other hand, the knockdown of CH25H could enhance the replication of SVV in HEK-293T and BHK-21 cells, indicating the importance of CH25H. To some extent, the CH25H mutant without hydroxylase activity also lost its ability to inhibit SVV amplification. Further studies demonstrated that 25HC was involved in the entire life cycle of SVV, especially in repressing its adsorption process. This study reveals that CH25H exerts the advantage of innate immunity mainly by producing 25HC to block virion adsorption.
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Affiliation(s)
- Hui Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China.,Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zekai Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China.,Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xiangmin Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China.,Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, China
| | - Liuxing Qin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China.,Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Wei Wen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China.,Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China
| | - Huanchun Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China.,Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China.,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, China
| | - Ping Qian
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China. .,Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China. .,Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, 430070, China.
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20
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Zhu H, Yan J, Liu X, Li L, Liu W, Wang X, Jiang P, Bai J. Cholesterol 25-hydroxylase inhibits Senecavirus A replication by enzyme activity-dependent and independent mechanisms. Vet Microbiol 2021; 256:109038. [PMID: 33845332 DOI: 10.1016/j.vetmic.2021.109038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 03/10/2021] [Indexed: 10/21/2022]
Abstract
Cholesterol 25-hydroxylase (CH25 H), as a host restriction factor, has been reported to take a broad-spectrum antiviral effect. However, the role of CH25H in Senecavirus A (SVA) infection remains unknown. In this study, we first demonstrate that overexpression of CH25H inhibits SVA replication. Consistently, knockdown or knockout of the endogens CH25H promotes SVA infection. Further, the anti-SVA effect of 25-hydroxycholesterol (25HC), which is the product of CH25H, operates via inhibition of viral attachment and replication. On the other hand, the CH25H mutant (CH25H-M) lacking hydroxylase activity still restricts SVA infection, which can selectively interact and degrade SVA 3A protein via the ubiquitin-proteasome manner. Altogether, these results suggest that CH25H has an antiviral function in SVA infection and provides an alternative manner to control SVA.
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Affiliation(s)
- Huixin Zhu
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Junfang Yan
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xing Liu
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonosis, Yangzhou University, Yangzhou, 225009, China
| | - Liang Li
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Wenwen Liu
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xianwei Wang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonosis, Yangzhou University, Yangzhou, 225009, China
| | - Ping Jiang
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonosis, Yangzhou University, Yangzhou, 225009, China
| | - Juan Bai
- Key Laboratory of Animal Diseases Diagnostic and Immunology, Ministry of Agriculture, MOE International Joint Collaborative Research Laboratory for Animal Health & Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, China; Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonosis, Yangzhou University, Yangzhou, 225009, China.
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21
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Fujii C, Zorumski CF, Izumi Y. Ethanol, neurosteroids and cellular stress responses: Impact on central nervous system toxicity, inflammation and autophagy. Neurosci Biobehav Rev 2021; 124:168-178. [PMID: 33561510 DOI: 10.1016/j.neubiorev.2021.01.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 01/19/2021] [Indexed: 01/21/2023]
Abstract
Alcohol intake can impair brain function, in addition to other organs such as the liver and kidney. In the brain ethanol can be detrimental to memory formation, through inducing the integrated stress response/endoplasmic reticulum stress/unfolded protein response and the molecular mechanisms linking stress to other events such as NOD-, LRR- and pyrin domain-containing protein 3 (NLRP3) inflammation and autophagy. This literature review aims to provide an overview of our current understanding of the molecular mechanisms involved in ethanol-induced damage with endoplasmic reticulum stress, integrated stress response, NLRP3 inflammation and autophagy, while discussing the impact of neurosteroids and oxysterols, including allopregnanolone, 25-hydroxycholesterol and 24S-hydroxycholesterol, on the central nervous system.
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Affiliation(s)
- Chika Fujii
- Department of Psychiatry and Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States
| | - Charles F Zorumski
- Department of Psychiatry and Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States
| | - Yukitoshi Izumi
- Department of Psychiatry and Taylor Family Institute for Innovative Psychiatric Research, Washington University School of Medicine, St. Louis, MO, United States.
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22
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Bhattacharya B, Xiao S, Chatterjee S, Urbanowski M, Ordonez A, Ihms EA, Agrahari G, Lun S, Berland R, Pichugin A, Gao Y, Connor J, Ivanov AR, Yan BS, Kobzik L, Koo BB, Jain S, Bishai W, Kramnik I. The integrated stress response mediates necrosis in murine Mycobacterium tuberculosis granulomas. J Clin Invest 2021; 131:130319. [PMID: 33301427 PMCID: PMC7843230 DOI: 10.1172/jci130319] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 12/04/2020] [Indexed: 12/27/2022] Open
Abstract
The mechanism by which only some individuals infected with Mycobacterium tuberculosis develop necrotic granulomas with progressive disease while others form controlled granulomas that contain the infection remains poorly defined. Mice carrying the sst1-suscepible (sst1S) genotype develop necrotic inflammatory lung lesions, similar to human tuberculosis (TB) granulomas, which are linked to macrophage dysfunction, while their congenic counterpart (B6) mice do not. In this study we report that (a) sst1S macrophages developed aberrant, biphasic responses to TNF characterized by superinduction of stress and type I interferon pathways after prolonged TNF stimulation; (b) the late-stage TNF response was driven via a JNK/IFN-β/protein kinase R (PKR) circuit; and (c) induced the integrated stress response (ISR) via PKR-mediated eIF2α phosphorylation and the subsequent hyperinduction of ATF3 and ISR-target genes Chac1, Trib3, and Ddit4. The administration of ISRIB, a small-molecule inhibitor of the ISR, blocked the development of necrosis in lung granulomas of M. tuberculosis-infected sst1S mice and concomitantly reduced the bacterial burden. Hence, induction of the ISR and the locked-in state of escalating stress driven by the type I IFN pathway in sst1S macrophages play a causal role in the development of necrosis in TB granulomas. Interruption of the aberrant stress response with inhibitors such as ISRIB may offer novel host-directed therapy strategies.
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Affiliation(s)
- Bidisha Bhattacharya
- The National Emerging Infectious Diseases Laboratory, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Shiqi Xiao
- Center for TB Research, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Sujoy Chatterjee
- The National Emerging Infectious Diseases Laboratory, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Michael Urbanowski
- Center for TB Research, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Alvaro Ordonez
- Center for TB Research, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Elizabeth A. Ihms
- Center for TB Research, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Garima Agrahari
- The National Emerging Infectious Diseases Laboratory, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Shichun Lun
- Center for TB Research, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Robert Berland
- The National Emerging Infectious Diseases Laboratory, Boston University School of Medicine, Boston, Massachusetts, USA
- Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Alexander Pichugin
- Department of Cellular Immunology, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Yuanwei Gao
- Department of Pharmacokinetics, Pharmacodynamics & Drug Metabolism (PPDM), Merck, West Point, Pennsylvania, USA
| | - John Connor
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Alexander R. Ivanov
- Department of Chemistry & Chemical Biology, Northeastern University, Boston, Massachusetts, USA
| | - Bo-Shiun Yan
- Institute of Biochemistry and Molecular Biology, National Taiwan University Medical College, Zhongzheng District, Taipei City, Taiwan
| | - Lester Kobzik
- Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Bang-Bon Koo
- The National Emerging Infectious Diseases Laboratory, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Sanjay Jain
- Center for TB Research, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - William Bishai
- Center for TB Research, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Igor Kramnik
- The National Emerging Infectious Diseases Laboratory, Boston University School of Medicine, Boston, Massachusetts, USA
- Department of Medicine, Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts, USA
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23
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Multiple Roles of 25-Hydroxycholesterol in Lipid Metabolism, Antivirus Process, Inflammatory Response, and Cell Survival. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:8893305. [PMID: 33274010 PMCID: PMC7695496 DOI: 10.1155/2020/8893305] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 10/25/2020] [Accepted: 10/26/2020] [Indexed: 02/07/2023]
Abstract
As an essential lipid, cholesterol is of great value in keeping cell homeostasis, being the precursor of bile acid and steroid hormones, and stabilizing membrane lipid rafts. As a kind of cholesterol metabolite produced by enzymatic or radical process, oxysterols have drawn much attention in the last decades. Among which, the role of 25-hydroxycholesterol (25-HC) in cholesterol and bile acid metabolism, antivirus process, and inflammatory response has been largely disclosed. This review is aimed at revealing these functions and underlying mechanisms of 25-HC.
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24
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Multifaceted Functions of CH25H and 25HC to Modulate the Lipid Metabolism, Immune Responses, and Broadly Antiviral Activities. Viruses 2020; 12:v12070727. [PMID: 32640529 PMCID: PMC7411728 DOI: 10.3390/v12070727] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 07/03/2020] [Indexed: 12/12/2022] Open
Abstract
With the frequent outbreaks of emerging infectious diseases in recent years, an effective broad-spectrum antiviral drug is becoming an urgent need for global public health. Cholesterol-25-hydroxylase (CH25H) and its enzymatic products 25-hydroxycholesterol (25HC), a well-known oxysterol that regulates lipid metabolism, have been reported to play multiple functions in modulating cholesterol homeostasis, inflammation, and immune responses. CH25H and 25HC were recently identified as exerting broadly antiviral activities, including upon a variety of highly pathogenic viruses such as human immunodeficiency virus (HIV), Ebola virus (EBOV), Nipah virus (NiV), Rift Valley fever virus (RVFV), and Zika virus (ZIKV). The underlying mechanisms for its antiviral activities are being extensively investigated but have not yet been fully clarified. In this study, we summarized the current findings on how CH25H and 25HC play multiple roles to modulate cholesterol metabolism, inflammation, immunity, and antiviral infections. Overall, 25HC should be further studied as a potential therapeutic agent to control emerging infectious diseases in the future.
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25
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Kolodziejek AM, Altura MA, Fan J, Petersen EM, Cook M, Brzovic PS, Miller SI. Salmonella Translocated Effectors Recruit OSBP1 to the Phagosome to Promote Vacuolar Membrane Integrity. Cell Rep 2020; 27:2147-2156.e5. [PMID: 31091452 DOI: 10.1016/j.celrep.2019.04.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 12/20/2018] [Accepted: 04/02/2019] [Indexed: 11/17/2022] Open
Abstract
Intracellular Salmonella use a type III secretion system (TTSS) to translocate effector proteins across the phagosome membrane and thus promote vacuole membrane tubulation, resulting in intracellular survival. This work demonstrates that the effector SseJ binds the eukaryotic lipid transporter oxysterol binding protein 1 (OSBP1). SseJ directs OSBP1 to the endosomal compartment in a manner dependent on the TTSS located on Salmonella pathogenicity island 2 (SPI2). OSBP1 localization is mediated by both SseJ and another OSBP1-binding SPI2 translocated effector, the deubiquitinase SseL. Deletion of both SseJ and SseL reduced vacuolar integrity with increased bacteria released into the eukaryotic cytoplasm of epithelial cells, indicating that their combined activities are necessary for vacuole membrane stability. Cells knocked down for OSBP1 or deleted for the OSBP1-binding proteins VAPA/B also demonstrate loss of vacuole integrity, consistent with the hypothesis that OSBP1 recruitment is required for SPI2-mediated alterations that promote vacuolar integrity of salmonellae.
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Affiliation(s)
- Anna M Kolodziejek
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Melissa A Altura
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Junping Fan
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Erik M Petersen
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA
| | - Matthew Cook
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
| | - Peter S Brzovic
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
| | - Samuel I Miller
- Department of Microbiology, University of Washington, Seattle, WA 98195, USA; Department of Immunology, University of Washington, Seattle, WA 98195, USA; Department of Medicine, University of Washington, Seattle, WA 98195, USA; Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA.
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26
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Brown AJ, Sharpe LJ, Rogers MJ. Oxysterols: From physiological tuners to pharmacological opportunities. Br J Pharmacol 2020; 178:3089-3103. [PMID: 32335907 DOI: 10.1111/bph.15073] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 04/11/2020] [Accepted: 04/14/2020] [Indexed: 02/06/2023] Open
Abstract
Oxysterols are oxygenated forms of cholesterol generated via autooxidation by free radicals and ROS, or formed enzymically by a variety of enzymes such as those involved in the synthesis of bile acids. Although found at very low concentrations in vivo, these metabolites play key roles in health and disease, particularly in development and regulating immune cell responses, by binding to effector proteins such as LXRα, RORγ and Insig and directly or indirectly regulating transcriptional programmes that affect cell metabolism and function. In this review, we summarise the routes by which oxysterols can be generated and subsequently modified to other oxysterol metabolites and highlight their diverse and profound biological functions and opportunities to alter their levels using pharmacological approaches. LINKED ARTICLES: This article is part of a themed issue on Oxysterols, Lifelong Health and Therapeutics. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v178.16/issuetoc.
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Affiliation(s)
- Andrew J Brown
- School of Biotechnology and Biomolecular Sciences, UNSW Sydney, Sydney, New South Wales, Australia
| | - Laura J Sharpe
- School of Biotechnology and Biomolecular Sciences, UNSW Sydney, Sydney, New South Wales, Australia
| | - Michael J Rogers
- Garvan Institute of Medical Research and St Vincent's Clinical School, UNSW Sydney, Sydney, New South Wales, Australia
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27
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Bäck M, Yurdagul A, Tabas I, Öörni K, Kovanen PT. Inflammation and its resolution in atherosclerosis: mediators and therapeutic opportunities. Nat Rev Cardiol 2020; 16:389-406. [PMID: 30846875 DOI: 10.1038/s41569-019-0169-2] [Citation(s) in RCA: 524] [Impact Index Per Article: 131.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Atherosclerosis is a lipid-driven inflammatory disease of the arterial intima in which the balance of pro-inflammatory and inflammation-resolving mechanisms dictates the final clinical outcome. Intimal infiltration and modification of plasma-derived lipoproteins and their uptake mainly by macrophages, with ensuing formation of lipid-filled foam cells, initiate atherosclerotic lesion formation, and deficient efferocytotic removal of apoptotic cells and foam cells sustains lesion progression. Defective efferocytosis, as a sign of inadequate inflammation resolution, leads to accumulation of secondarily necrotic macrophages and foam cells and the formation of an advanced lesion with a necrotic lipid core, indicative of plaque vulnerability. Resolution of inflammation is mediated by specialized pro-resolving lipid mediators derived from omega-3 fatty acids or arachidonic acid and by relevant proteins and signalling gaseous molecules. One of the major effects of inflammation resolution mediators is phenotypic conversion of pro-inflammatory macrophages into macrophages that suppress inflammation and promote healing. In advanced atherosclerotic lesions, the ratio between specialized pro-resolving mediators and pro-inflammatory lipids (in particular leukotrienes) is strikingly low, providing a molecular explanation for the defective inflammation resolution features of these lesions. In this Review, we discuss the mechanisms of the formation of clinically dangerous atherosclerotic lesions and the potential of pro-resolving mediator therapy to inhibit this process.
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Affiliation(s)
- Magnus Bäck
- Department of Cardiology, Karolinska University Hospital, Stockholm, Sweden
| | - Arif Yurdagul
- Columbia University Irving Medical Center, New York, NY, USA
| | - Ira Tabas
- Columbia University Irving Medical Center, New York, NY, USA
| | - Katariina Öörni
- Atherosclerosis Research Laboratory, Wihuri Research Institute, Helsinki, Finland.,Molecular and Integrative Biosciences Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Petri T Kovanen
- Atherosclerosis Research Laboratory, Wihuri Research Institute, Helsinki, Finland.
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28
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Raselli T, Wyss A, Gonzalez Alvarado MN, Weder B, Mamie C, Spalinger MR, Van Haaften WT, Dijkstra G, Sailer AW, Imenez Silva PH, Wagner CA, Tosevski V, Leibl S, Scharl M, Rogler G, Hausmann M, Misselwitz B. The Oxysterol Synthesising Enzyme CH25H Contributes to the Development of Intestinal Fibrosis. J Crohns Colitis 2019; 13:1186-1200. [PMID: 31220227 PMCID: PMC6751338 DOI: 10.1093/ecco-jcc/jjz039] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Intestinal fibrosis and stenosis are common complications of Crohn's disease [CD], frequently requiring surgery. Anti-inflammatory strategies can only partially prevent fibrosis; hence, anti-fibrotic therapies remain an unmet clinical need. Oxysterols are oxidised cholesterol derivatives with important roles in various biological processes. The enzyme cholesterol 25-hydroxylase [CH25H] converts cholesterol to 25-hydroxycholesterol [25-HC], which modulates immune responses and oxidative stress. In human intestinal samples from CD patients, we found a strong correlation of CH25H mRNA expression with the expression of fibrosis markers. We demonstrate reduced intestinal fibrosis in mice deficient for the CH25H enzyme, using the sodium dextran sulphate [DSS]-induced chronic colitis model. Additionally, using a heterotopic transplantation model of intestinal fibrosis, we demonstrate reduced collagen deposition and lower concentrations of hydroxyproline in CH25H knockouts. In the heterotopic transplant model, CH25H was expressed in fibroblasts. Taken together, our findings indicate an involvement of oxysterol synthesis in the pathogenesis of intestinal fibrosis.
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Affiliation(s)
- T Raselli
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - A Wyss
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - M N Gonzalez Alvarado
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - B Weder
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - C Mamie
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - M R Spalinger
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - W T Van Haaften
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - G Dijkstra
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - A W Sailer
- Chemical Biology & Therapeutics, Novartis Institutes for BioMedical Research, Basel, Switzerland
| | | | - C A Wagner
- Institute of Physiology, Zurich University, Zurich, Switzerland
| | - V Tosevski
- Mass Cytometry Facility, Zurich University, Zurich, Switzerland
| | - Sebastian Leibl
- Institute of Pathology and Molecular Pathology, University Hospital Zurich and Zurich University, Zurich, Switzerland
| | - M Scharl
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - G Rogler
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - M Hausmann
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
| | - B Misselwitz
- Department of Gastroenterology and Hepatology, University Hospital Zurich, Zurich University, Zurich, Switzerland
- Corresponding author: Dr. Benjamin Misselwitz, Dept. of Visceral Surgery and Medicine, Inselspital Bern and Bern University, Freiburgstr 18, 3010 Bern, Switzerland.
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29
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Magoro T, Dandekar A, Jennelle LT, Bajaj R, Lipkowitz G, Angelucci AR, Bessong PO, Hahn YS. IL-1β/TNF-α/IL-6 inflammatory cytokines promote STAT1-dependent induction of CH25H in Zika virus-infected human macrophages. J Biol Chem 2019; 294:14591-14602. [PMID: 31375561 DOI: 10.1074/jbc.ra119.007555] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 07/22/2019] [Indexed: 12/16/2022] Open
Abstract
Zika virus (ZIKV)3 is an enveloped, single-stranded, positive-sense RNA virus of the Flaviviridae family that has emerged as a public health threat because of its global transmission and link to microcephaly. Currently there is no vaccine for this virus. Conversion of cholesterol to 25-hydroxycholesterol by cholesterol 25-hydroxylase (CH25H) has been shown to have broad antiviral properties. However, the molecular basis of induction of CH25H in humans is not known. Elucidation of signaling and transcriptional events for induction of CH25H expression is critical for designing therapeutic antiviral agents. In this study, we show that CH25H is induced by ZIKV infection or Toll-like receptor stimulation. Interestingly, CH25H is induced by pro-inflammatory cytokines, including IL-1β, tumor necrosis factor α, and IL-6, and this induction depends on the STAT1 transcription factor. Additionally, we observed that cAMP-dependent transcription factor (ATF3) weakly binds to the CH25H promoter, suggesting cooperation with STAT1. However, ZIKV-induced CH25H was independent of type I interferon. These findings provide important information for understanding how the Zika virus induces innate inflammatory responses and promotes the expression of anti-viral CH25H protein.
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Affiliation(s)
- Tshifhiwa Magoro
- HIV/AIDS and Global Health Research Program, Department of Microbiology, University of Venda, Thohoyandou, Limpopo, South Africa.,Beirne B. Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia 22908.,Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia 22908
| | - Aditya Dandekar
- Beirne B. Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia 22908.,Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia 22908
| | - Lucas T Jennelle
- Beirne B. Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia 22908.,Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia 22908
| | - Rohan Bajaj
- Beirne B. Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia 22908.,Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia 22908
| | - Gabriel Lipkowitz
- Beirne B. Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia 22908.,Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia 22908
| | - Angelina R Angelucci
- Beirne B. Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia 22908.,Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia 22908
| | - Pascal O Bessong
- HIV/AIDS and Global Health Research Program, Department of Microbiology, University of Venda, Thohoyandou, Limpopo, South Africa
| | - Young S Hahn
- Beirne B. Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia 22908 .,Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, Virginia 22908
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30
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Raselli T, Hearn T, Wyss A, Atrott K, Peter A, Frey-Wagner I, Spalinger MR, Maggio EM, Sailer AW, Schmitt J, Schreiner P, Moncsek A, Mertens J, Scharl M, Griffiths WJ, Bueter M, Geier A, Rogler G, Wang Y, Misselwitz B. Elevated oxysterol levels in human and mouse livers reflect nonalcoholic steatohepatitis. J Lipid Res 2019; 60:1270-1283. [PMID: 31113816 PMCID: PMC6602130 DOI: 10.1194/jlr.m093229] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/19/2019] [Indexed: 02/06/2023] Open
Abstract
Nonalcoholic steatohepatitis (NASH), a primary cause of liver disease, leads to complications such as fibrosis, cirrhosis, and carcinoma, but the pathophysiology of NASH is incompletely understood. Epstein-Barr virus-induced G protein-coupled receptor 2 (EBI2) and its oxysterol ligand 7α,25-dihydroxycholesterol (7α,25-diHC) are recently discovered immune regulators. Several lines of evidence suggest a role of oxysterols in NASH pathogenesis, but rigorous testing has not been performed. We measured oxysterol levels in the livers of NASH patients by LC-MS and tested the role of the EBI2-7α,25-diHC system in a murine feeding model of NASH. Free oxysterol profiling in livers from NASH patients revealed a pronounced increase in 24- and 7-hydroxylated oxysterols in NASH compared with controls. Levels of 24- and 7-hydroxylated oxysterols correlated with histological NASH activity. Histological analysis of murine liver samples demonstrated ballooning and liver inflammation. No significant genotype-related differences were observed in Ebi2−/− mice and mice with defects in the 7α,25-diHC synthesizing enzymes CH25H and CYP7B1 compared with wild-type littermate controls, arguing against an essential role of these genes in NASH pathogenesis. Elevated 24- and 7-hydroxylated oxysterol levels were confirmed in murine NASH liver samples. Our results suggest increased bile acid synthesis in NASH samples, as judged by the enhanced level of 7α-hydroxycholest-4-en-3-one and impaired 24S-hydroxycholesterol metabolism as characteristic biochemical changes in livers affected by NASH.
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Affiliation(s)
- Tina Raselli
- Department of Gastroenterology and Hepatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Tom Hearn
- Swansea University Medical School Singleton Park, Swansea, United Kingdom
| | - Annika Wyss
- Department of Gastroenterology and Hepatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Kirstin Atrott
- Department of Gastroenterology and Hepatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Alain Peter
- Department of Gastroenterology and Hepatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Isabelle Frey-Wagner
- Department of Gastroenterology and Hepatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Marianne R Spalinger
- Department of Gastroenterology and Hepatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Ewerton M Maggio
- Institute for Surgical Pathology University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Andreas W Sailer
- Chemical Biology and Therapeutics, Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Johannes Schmitt
- Division of Hepatology Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany
| | - Philipp Schreiner
- Department of Gastroenterology and Hepatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Anja Moncsek
- Department of Gastroenterology and Hepatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Joachim Mertens
- Department of Gastroenterology and Hepatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Michael Scharl
- Department of Gastroenterology and Hepatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | | | - Marco Bueter
- Department of Visceral Surgery University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Andreas Geier
- Division of Hepatology Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany
| | - Gerhard Rogler
- Department of Gastroenterology and Hepatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Yuqin Wang
- Swansea University Medical School Singleton Park, Swansea, United Kingdom
| | - Benjamin Misselwitz
- Department of Gastroenterology and Hepatology, University Hospital Zurich and University of Zurich, Zurich, Switzerland .,Department of Visceral Surgery and Medicine, Inselspital Bern and Bern University, Bern, Switzerland
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31
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Abstract
On January 21, 2017, I received an E-mail from Herb Tabor that I had been simultaneously hoping for and dreading for several years: an invitation to write a "Reflections" article for the Journal of Biological Chemistry On the one hand, I was honored to receive an invitation from Herb, a man I have admired for over 40 years, known for 24 years, and worked with as a member of the Editorial Board and Associate Editor of the Journal of Biological Chemistry for 17 years. On the other hand, the invitation marked the waning of my career as an academic scientist. With these conflicting emotions, I wrote this article with the goals of recording my career history and recognizing the many mentors, trainees, and colleagues who have contributed to it and, perhaps with pretension, with the desire that students who are beginning a career in research will find inspiration in the path I have taken and appreciate the importance of luck.
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Affiliation(s)
- David W Russell
- From the Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, Texas 75390-9046
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32
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Mukherjee P, Hough G, Chattopadhyay A, Grijalva V, O'Connor EI, Meriwether D, Wagner A, Ntambi JM, Navab M, Reddy ST, Fogelman AM. Role of enterocyte stearoyl-Co-A desaturase-1 in LDLR-null mice. J Lipid Res 2018; 59:1818-1840. [PMID: 30139760 DOI: 10.1194/jlr.m083527] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 07/30/2018] [Indexed: 11/20/2022] Open
Abstract
After crossing floxed stearoyl-CoA desaturase-1 (Scd1 fl/fl) mice with LDL receptor-null (ldlr -/-) mice, and then Villin Cre (VilCre) mice, enterocyte Scd1 expression in Scd1 fl/fl/ldlr -/-/VilCre mice was reduced 70%. On Western diet (WD), Scd1 fl/fl/ldlr -/- mice gained more weight than Scd1 fl/fl/ldlr -/-/VilCre mice (P < 0.0023). On WD, jejunum levels of lysophosphatidylcholine (LysoPC) 18:1 and lysophosphatidic acid (LPA) 18:1 were significantly less in Scd1 fl/fl/ldlr -/-/VilCre compared with Scd1 fl/fl/ldlr -/- mice (P < 0.0004 and P < 0.026, respectively). On WD, Scd1 fl/fl/ldlr -/-/VilCre mice compared with Scd1 fl/fl/ldlr -/- mice had lower protein levels of lipopolysaccharide-binding protein (LBP), cluster of differentiation 14 (CD14), toll-like receptor 4 (TLR4), and myeloid differentiation factor-88 (MyD88) in enterocytes and plasma, and less dyslipidemia and systemic inflammation. Adding a concentrate of tomatoes transgenic for the apoA-I mimetic peptide 6F (Tg6F) to WD resulted in reduced enterocyte protein levels of LBP, CD14, TLR4, and MyD88 in Scd1 fl/fl/ldlr -/- mice similar to that seen in Scd1 fl/fl/ldlr -/-/VilCre mice. Adding LysoPC 18:1 to WD did not reverse the effects of enterocyte Scd1 knockdown. Adding LysoPC 18:1 (but not LysoPC 18:0) to chow induced jejunum Scd1 expression and increased dyslipidemia and plasma serum amyloid A and interleukin 6 levels in Scd1 fl/fl/ldlr -/- mice, but not in Scd1 fl/fl/ldlr -/-/VilCre mice. We conclude that enterocyte Scd1 is partially responsible for LysoPC 18:1- and WD-induced dyslipidemia and inflammation in ldlr -/- mice.
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Affiliation(s)
- Pallavi Mukherjee
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
| | - Greg Hough
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
| | - Arnab Chattopadhyay
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
| | - Victor Grijalva
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
| | - Ellen Ines O'Connor
- Molecular Toxicology Interdepartmental Program, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
| | - David Meriwether
- Departments of Molecular and Medical Pharmacology, University of California-Los Angeles, Los Angeles, CA 90095
| | - Alan Wagner
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
| | - James M Ntambi
- Departments of Biochemistry and Nutritional Sciences, University of Wisconsin-Madison, Madison, WI 53706
| | - Mohamad Navab
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
| | - Srinivasa T Reddy
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095 .,Departments of Molecular and Medical Pharmacology, University of California-Los Angeles, Los Angeles, CA 90095.,Departments of Obstetrics and Gynecology, University of California-Los Angeles, Los Angeles, CA 90095
| | - Alan M Fogelman
- Departments of Medicine, University of California-Los Angeles, Los Angeles, CA 90095
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Tricarico PM, Caracciolo I, Gratton R, D'Agaro P, Crovella S. 25-hydroxycholesterol reduces inflammation, viral load and cell death in ZIKV-infected U-87 MG glial cell line. Inflammopharmacology 2018; 27:621-625. [PMID: 30019309 DOI: 10.1007/s10787-018-0517-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/09/2018] [Indexed: 01/21/2023]
Abstract
Zika virus (ZIKV) infection is a global health issue due to its worldwide diffusion and to the related effects on neural progenitor cells with severe consequences on developing brain as well as on the central nervous system of adults. Previous studies showed that ZIKV infection induces an increment of IL1B expression in the central nervous system and also in the blood. IL-1β is a pro-inflammatory cytokine essential for cellular defence, tissue repair and neuroinflammation, a mechanism seen to be associated with several neuroinflammatory diseases. 25-hydroxycholesterol (25-HC) is a natural oxysterol, derived from hydroxylation of cholesterol, possessing important antiviral activity possibly correlated to its ability to alter host membrane structures. Furthermore, 25-HC is involved in the modulation of IL1B gene expression, being able to suppress IL-1β driven inflammation probably by blocking the activation of the SREB proteins. In our study, we analysed the antiviral action of 25-HC in ZIKV-infected U-87 MG cells, also evaluating its impact on inflammation and cell death. We demonstrated that 25-HC is able to reduce inflammation and cell death caused by ZIKV infection and also to diminish intracellular ZIKV load in U-87 MG glial cell line. Considering its antiviral activity and its ability to penetrate blood-brain barrier, 25-HC could be proposed, based on our results and literature findings, as a potential anti-ZIKV agent.
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Affiliation(s)
| | | | - Rossella Gratton
- Institute for Maternal and Child Health "Burlo Garofolo", Via dell' Istria 65/1, 34137, Trieste, Italy
| | | | - Sergio Crovella
- University of Trieste, Piazzale Europa 1, 34128, Trieste, Italy.,Institute for Maternal and Child Health "Burlo Garofolo", Via dell' Istria 65/1, 34137, Trieste, Italy
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34
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Araldi E, Fernández-Fuertes M, Canfrán-Duque A, Tang W, Cline GW, Madrigal-Matute J, Pober JS, Lasunción MA, Wu D, Fernández-Hernando C, Suárez Y. Lanosterol Modulates TLR4-Mediated Innate Immune Responses in Macrophages. Cell Rep 2018; 19:2743-2755. [PMID: 28658622 DOI: 10.1016/j.celrep.2017.05.093] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 04/21/2017] [Accepted: 05/31/2017] [Indexed: 12/26/2022] Open
Abstract
Macrophages perform critical functions in both innate immunity and cholesterol metabolism. Here, we report that activation of Toll-like receptor 4 (TLR4) in macrophages causes lanosterol, the first sterol intermediate in the cholesterol biosynthetic pathway, to accumulate. This effect is due to type I interferon (IFN)-dependent histone deacetylase 1 (HDAC1) transcriptional repression of lanosterol-14α-demethylase, the gene product of Cyp51A1. Lanosterol accumulation in macrophages, because of either treatment with ketoconazole or induced conditional disruption of Cyp51A1 in mouse macrophages in vitro, decreases IFNβ-mediated signal transducer and activator of transcription (STAT)1-STAT2 activation and IFNβ-stimulated gene expression. These effects translate into increased survival to endotoxemic shock by reducing cytokine secretion. In addition, lanosterol accumulation increases membrane fluidity and ROS production, thus potentiating phagocytosis and the ability to kill bacteria. This improves resistance of mice to Listeria monocytogenes infection by increasing bacterial clearance in the spleen and liver. Overall, our data indicate that lanosterol is an endogenous selective regulator of macrophage immunity.
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Affiliation(s)
- Elisa Araldi
- Department of Comparative Medicine, Department of Pathology, Program in Integrative Cell Signaling and Neurobiology of Metabolism and Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520, USA; Departments of Medicine and Cell Biology, Leon H. Charney Division of Cardiology and Cell Biology, New York University School of Medicine, New York, NY 10016, USA
| | - Marta Fernández-Fuertes
- Department of Comparative Medicine, Department of Pathology, Program in Integrative Cell Signaling and Neurobiology of Metabolism and Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Alberto Canfrán-Duque
- Department of Comparative Medicine, Department of Pathology, Program in Integrative Cell Signaling and Neurobiology of Metabolism and Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520, USA; Servicio de Bioquímica-Investigación, Hospital Universitario Ramón y Cajal, IRyCIS, Madrid y CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), ISCIII, 28029 Madrid, Spain
| | - Wenwen Tang
- Department of Pharmacology and Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Gary W Cline
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Julio Madrigal-Matute
- Departments of Medicine and Cell Biology, Leon H. Charney Division of Cardiology and Cell Biology, New York University School of Medicine, New York, NY 10016, USA
| | - Jordan S Pober
- Department of Immunobiology and Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Miguel A Lasunción
- Servicio de Bioquímica-Investigación, Hospital Universitario Ramón y Cajal, IRyCIS, Madrid y CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), ISCIII, 28029 Madrid, Spain
| | - Dianqing Wu
- Department of Pharmacology and Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Carlos Fernández-Hernando
- Department of Comparative Medicine, Department of Pathology, Program in Integrative Cell Signaling and Neurobiology of Metabolism and Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520, USA.
| | - Yajaira Suárez
- Department of Comparative Medicine, Department of Pathology, Program in Integrative Cell Signaling and Neurobiology of Metabolism and Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520, USA.
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35
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Determination of total plasma oxysterols by enzymatic hydrolysis, solid phase extraction and liquid chromatography coupled to mass-spectrometry. J Pharm Biomed Anal 2018; 150:396-405. [DOI: 10.1016/j.jpba.2017.12.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 12/15/2017] [Accepted: 12/16/2017] [Indexed: 01/04/2023]
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36
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Li Z, Martin M, Zhang J, Huang HY, Bai L, Zhang J, Kang J, He M, Li J, Maurya MR, Gupta S, Zhou G, Sangwung P, Xu YJ, Lei T, Huang HD, Jain M, Jain MK, Subramaniam S, Shyy JYJ. Krüppel-Like Factor 4 Regulation of Cholesterol-25-Hydroxylase and Liver X Receptor Mitigates Atherosclerosis Susceptibility. Circulation 2017; 136:1315-1330. [PMID: 28794002 DOI: 10.1161/circulationaha.117.027462] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 07/31/2017] [Indexed: 12/30/2022]
Abstract
BACKGROUND Atherosclerosis is a multifaceted inflammatory disease involving cells in the vascular wall (eg, endothelial cells [ECs]), as well as circulating and resident immunogenic cells (eg, monocytes/macrophages). Acting as a ligand for liver X receptor (LXR), but an inhibitor of SREBP2 (sterol regulatory element-binding protein 2), 25-hydroxycholesterol, and its catalyzing enzyme cholesterol-25-hydroxylase (Ch25h) are important in regulating cellular inflammatory status and cholesterol biosynthesis in both ECs and monocytes/macrophages. METHODS Bioinformatic analyses were used to investigate RNA-sequencing data to identify cholesterol oxidation and efflux genes regulated by Krüppel-like factor 4 (KLF4). In vitro experiments involving cultured ECs and macrophages and in vivo methods involving mice with Ch25h ablation were then used to explore the atheroprotective role of KLF4-Ch25h/LXR. RESULTS Vasoprotective stimuli increased the expression of Ch25h and LXR via KLF4. The KLF4-Ch25h/LXR homeostatic axis functions through suppressing inflammation, evidenced by the reduction of inflammasome activity in ECs and the promotion of M1 to M2 phenotypic transition in macrophages. The increased atherosclerosis in apolipoprotein E-/-/Ch25h-/- mice further demonstrates the beneficial role of the KLF4-Ch25h/LXR axis in vascular function and disease. CONCLUSIONS KLF4 transactivates Ch25h and LXR, thereby promoting the synergistic effects between ECs and macrophages to protect against atherosclerosis susceptibility.
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Affiliation(s)
- Zhao Li
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Marcy Martin
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Jin Zhang
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Hsi-Yuan Huang
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Liang Bai
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Jiao Zhang
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Jian Kang
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Ming He
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Jie Li
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Mano R Maurya
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Shakti Gupta
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Guangjin Zhou
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Panjamaporn Sangwung
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Yong-Jiang Xu
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Ting Lei
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Hsien-Da Huang
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Mohit Jain
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Mukesh K Jain
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - Shankar Subramaniam
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.)
| | - John Y-J Shyy
- From Cardiovascular Research Center, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Key Laboratory of Environment and Genes Related to Diseases, Xi'an Jiaotong University, Ministry of Education of China (Z.L., Jin Zhang, L.B., Jiao Zhang, M.H., J.L., T.L., J.Y.-J.S.); Division of Cardiology, Department of Medicine, University of California, San Diego, La Jolla (M.M., Jin Zhang, J.K., M.H., Y.-J.X., M.J., J.Y.-J.S.);Department of Bioengineering, University of California, San Diego, La Jolla (M.R.M., S.G.); Division of Biochemistry and Molecular Biology, University of California, Riverside (M.M.); Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan (H.-Y.H., H.-D.H.); and Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH (G.Z., P.S., M.K.J.).
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Fessler MB, Summer RS. Surfactant Lipids at the Host-Environment Interface. Metabolic Sensors, Suppressors, and Effectors of Inflammatory Lung Disease. Am J Respir Cell Mol Biol 2017; 54:624-35. [PMID: 26859434 DOI: 10.1165/rcmb.2016-0011ps] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The lipid composition of pulmonary surfactant is unlike that of any other body fluid. This extracellular lipid reservoir is also uniquely susceptible by virtue of its direct and continuous exposure to environmental oxidants, inflammatory agents, and pathogens. Historically, the greatest attention has been focused on those biophysical features of surfactant that serve to reduce surface tension at the air-liquid interface. More recently, surfactant lipids have also been recognized as bioactive molecules that maintain immune quiescence in the lung but can also be remodeled by the inhaled environment into neolipids that mediate key roles in inflammation, immunity, and fibrosis. This review focuses on the roles in inflammatory and infectious lung disease of two classes of native surfactant lipids, glycerophospholipids and sterols, and their corresponding oxidized species, oxidized glycerophospholipids and oxysterols. We highlight evidence that surfactant composition is sensitive to circulating lipoproteins and that the lipid milieu of the alveolus should thus be recognized as susceptible to diet and common systemic metabolic disorders. We also discuss intriguing evidence suggesting that oxidized surfactant lipids may represent an evolutionary link between immunity and tissue homeostasis that arose in the primordial lung. Taken together, the emerging picture is one in which the unique environmental susceptibility of the lung, together with its unique extracellular lipid requirements, may have made this organ both an evolutionary hub and an engine for lipid-immune cross-talk.
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Affiliation(s)
- Michael B Fessler
- 1 Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina; and
| | - Ross S Summer
- 2 Center for Translational Medicine and Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania
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38
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Wang J, Zeng L, Zhang L, Guo ZZ, Lu SF, Ming SL, Li GL, Wan B, Tian KG, Yang GY, Chu BB. Cholesterol 25-hydroxylase acts as a host restriction factor on pseudorabies virus replication. J Gen Virol 2017. [DOI: 10.1099/jgv.0.000797] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Jiang Wang
- College of Animal Sciences and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan Province, PR China
| | - Lei Zeng
- College of Animal Sciences and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan Province, PR China
| | - Li Zhang
- Department of Physiology and Neurobiology, and the Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269, USA
| | - Zhen-Zhen Guo
- College of Animal Sciences and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan Province, PR China
| | - Shao-Fang Lu
- College of Animal Sciences and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan Province, PR China
| | - Sheng-Li Ming
- College of Animal Sciences and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan Province, PR China
| | - Guo-Li Li
- College of Animal Sciences and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan Province, PR China
| | - Bo Wan
- College of Animal Sciences and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan Province, PR China
| | - Ke-Gong Tian
- College of Animal Sciences and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan Province, PR China
| | - Guo-Yu Yang
- College of Animal Sciences and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan Province, PR China
| | - Bei-Bei Chu
- College of Animal Sciences and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan Province, PR China
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39
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Li S, Sullivan NL, Rouphael N, Yu T, Banton S, Maddur MS, McCausland M, Chiu C, Canniff J, Dubey S, Liu K, Tran V, Hagan T, Duraisingham S, Wieland A, Mehta AK, Whitaker JA, Subramaniam S, Jones DP, Sette A, Vora K, Weinberg A, Mulligan MJ, Nakaya HI, Levin M, Ahmed R, Pulendran B. Metabolic Phenotypes of Response to Vaccination in Humans. Cell 2017; 169:862-877.e17. [PMID: 28502771 DOI: 10.1016/j.cell.2017.04.026] [Citation(s) in RCA: 181] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 02/07/2017] [Accepted: 04/18/2017] [Indexed: 12/22/2022]
Abstract
Herpes zoster (shingles) causes significant morbidity in immune compromised hosts and older adults. Whereas a vaccine is available for prevention of shingles, its efficacy declines with age. To help to understand the mechanisms driving vaccinal responses, we constructed a multiscale, multifactorial response network (MMRN) of immunity in healthy young and older adults immunized with the live attenuated shingles vaccine Zostavax. Vaccination induces robust antigen-specific antibody, plasmablasts, and CD4+ T cells yet limited CD8+ T cell and antiviral responses. The MMRN reveals striking associations between orthogonal datasets, such as transcriptomic and metabolomics signatures, cell populations, and cytokine levels, and identifies immune and metabolic correlates of vaccine immunity. Networks associated with inositol phosphate, glycerophospholipids, and sterol metabolism are tightly coupled with immunity. Critically, the sterol regulatory binding protein 1 and its targets are key integrators of antibody and T follicular cell responses. Our approach is broadly applicable to study human immunity and can help to identify predictors of efficacy as well as mechanisms controlling immunity to vaccination.
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Affiliation(s)
- Shuzhao Li
- Department of Medicine, School of Medicine, Emory University, Atlanta, GA 30303, USA
| | - Nicole L Sullivan
- Emory Vaccine Center, Yerkes National Primate Research Center, 954 Gatewood Road, Atlanta, GA 30329, USA
| | - Nadine Rouphael
- Department of Medicine, School of Medicine, Emory University, Atlanta, GA 30303, USA; Hope Clinic of the Emory Vaccine Center, Decatur, GA 30030, USA
| | - Tianwei Yu
- Department of Bioinformatics and Biostatistics, Rollins School of Public Health, Emory University, Atlanta, GA 30030, USA
| | - Sophia Banton
- Department of Medicine, School of Medicine, Emory University, Atlanta, GA 30303, USA
| | - Mohan S Maddur
- Emory Vaccine Center, Yerkes National Primate Research Center, 954 Gatewood Road, Atlanta, GA 30329, USA
| | - Megan McCausland
- Emory Vaccine Center, Yerkes National Primate Research Center, 954 Gatewood Road, Atlanta, GA 30329, USA
| | - Christopher Chiu
- Emory Vaccine Center, Yerkes National Primate Research Center, 954 Gatewood Road, Atlanta, GA 30329, USA
| | - Jennifer Canniff
- University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Sheri Dubey
- Department of Infectious Diseases and Vaccines-West Point, PA, Merck Research Laboratories, Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | - Ken Liu
- Department of Medicine, School of Medicine, Emory University, Atlanta, GA 30303, USA
| | - ViLinh Tran
- Department of Medicine, School of Medicine, Emory University, Atlanta, GA 30303, USA
| | - Thomas Hagan
- Emory Vaccine Center, Yerkes National Primate Research Center, 954 Gatewood Road, Atlanta, GA 30329, USA
| | - Sai Duraisingham
- Emory Vaccine Center, Yerkes National Primate Research Center, 954 Gatewood Road, Atlanta, GA 30329, USA
| | - Andreas Wieland
- Emory Vaccine Center, Yerkes National Primate Research Center, 954 Gatewood Road, Atlanta, GA 30329, USA
| | - Aneesh K Mehta
- Department of Medicine, School of Medicine, Emory University, Atlanta, GA 30303, USA
| | - Jennifer A Whitaker
- Department of Medicine, School of Medicine, Emory University, Atlanta, GA 30303, USA
| | - Shankar Subramaniam
- Department of Bioengineering, Department of Chemistry and Biochemistry, Department of Nanoengineering, Department of Cellular and Molecular Medicine, University of California at San Diego, La Jolla, CA 92093, USA
| | - Dean P Jones
- Department of Medicine, School of Medicine, Emory University, Atlanta, GA 30303, USA
| | - Alessandro Sette
- Division of Vaccine Discovery, La Jolla Institute of Immunology, La Jolla, CA 92037, USA
| | - Kalpit Vora
- Department of Infectious Diseases and Vaccines-West Point, PA, Merck Research Laboratories, Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | - Adriana Weinberg
- University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Mark J Mulligan
- Department of Medicine, School of Medicine, Emory University, Atlanta, GA 30303, USA; Hope Clinic of the Emory Vaccine Center, Decatur, GA 30030, USA
| | - Helder I Nakaya
- School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508, Brazil; Department of Pathology, School of Medicine, Emory University, Atlanta, GA 30329, USA
| | - Myron Levin
- University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Rafi Ahmed
- Emory Vaccine Center, Yerkes National Primate Research Center, 954 Gatewood Road, Atlanta, GA 30329, USA; Department of Microbiology and Immunology, Emory University, Atlanta, GA 30322, USA
| | - Bali Pulendran
- Emory Vaccine Center, Yerkes National Primate Research Center, 954 Gatewood Road, Atlanta, GA 30329, USA; Department of Pathology, School of Medicine, Emory University, Atlanta, GA 30329, USA.
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40
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Li C, Deng YQ, Wang S, Ma F, Aliyari R, Huang XY, Zhang NN, Watanabe M, Dong HL, Liu P, Li XF, Ye Q, Tian M, Hong S, Fan J, Zhao H, Li L, Vishlaghi N, Buth JE, Au C, Liu Y, Lu N, Du P, Qin FXF, Zhang B, Gong D, Dai X, Sun R, Novitch BG, Xu Z, Qin CF, Cheng G. 25-Hydroxycholesterol Protects Host against Zika Virus Infection and Its Associated Microcephaly in a Mouse Model. Immunity 2017; 46:446-456. [PMID: 28314593 DOI: 10.1016/j.immuni.2017.02.012] [Citation(s) in RCA: 246] [Impact Index Per Article: 35.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 01/21/2017] [Accepted: 02/08/2017] [Indexed: 02/01/2023]
Abstract
Zika virus (ZIKV) has become a public health threat due to its global transmission and link to severe congenital disorders. The host immune responses to ZIKV infection have not been fully elucidated, and effective therapeutics are not currently available. Herein, we demonstrated that cholesterol-25-hydroxylase (CH25H) was induced in response to ZIKV infection and that its enzymatic product, 25-hydroxycholesterol (25HC), was a critical mediator of host protection against ZIKV. Synthetic 25HC addition inhibited ZIKV infection in vitro by blocking viral entry, and treatment with 25HC reduced viremia and conferred protection against ZIKV in mice and rhesus macaques. 25HC suppressed ZIKV infection and reduced tissue damage in human cortical organoids and the embryonic brain of the ZIKV-induced mouse microcephaly model. Our findings highlight the protective role of CH25H during ZIKV infection and the potential use of 25HC as a natural antiviral agent to combat ZIKV infection and prevent ZIKV-associated outcomes, such as microcephaly.
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Affiliation(s)
- Chunfeng Li
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, 100005 Beijing, China; Suzhou Institute of Systems Medicine, Suzhou, 215123 Jiangsu, China; Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 100071 Beijing, China
| | - Yong-Qiang Deng
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 100071 Beijing, China
| | - Shuo Wang
- State Key Laboratory of Molecular Developmental Biology, CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences; Parkinson's Disease Center, Beijing Institute for Brain Disorders, 100101 Beijing, China
| | - Feng Ma
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, 100005 Beijing, China; Suzhou Institute of Systems Medicine, Suzhou, 215123 Jiangsu, China; Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA 90095, USA
| | - Roghiyh Aliyari
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA 90095, USA
| | - Xing-Yao Huang
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 100071 Beijing, China
| | - Na-Na Zhang
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 100071 Beijing, China; Guangxi Medical University, 530021 Nanning, China
| | - Momoko Watanabe
- Department of Neurobiology and Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095, USA
| | - Hao-Long Dong
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 100071 Beijing, China
| | - Ping Liu
- CAS Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Chaoyang District, 100101 Beijing, China
| | - Xiao-Feng Li
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 100071 Beijing, China
| | - Qing Ye
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 100071 Beijing, China
| | - Min Tian
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 100071 Beijing, China; Beijing Traditional Medicine Chinese Hospital, Capital Medical University, 100069 Beijing, China
| | - Shuai Hong
- State Key Laboratory of Molecular Developmental Biology, CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences; Parkinson's Disease Center, Beijing Institute for Brain Disorders, 100101 Beijing, China
| | - Junwan Fan
- State Key Laboratory of Molecular Developmental Biology, CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences; Parkinson's Disease Center, Beijing Institute for Brain Disorders, 100101 Beijing, China
| | - Hui Zhao
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 100071 Beijing, China
| | - Lili Li
- CAS Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Chaoyang District, 100101 Beijing, China
| | - Neda Vishlaghi
- Department of Neurobiology and Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095, USA
| | - Jessie E Buth
- Department of Neurobiology and Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095, USA
| | - Connie Au
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA 90095, USA
| | - Ying Liu
- CAS Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Chaoyang District, 100101 Beijing, China
| | - Ning Lu
- CAS Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Chaoyang District, 100101 Beijing, China
| | - Peishuang Du
- CAS Key Laboratory of Infection and Immunity, Institute of Biophysics, Chinese Academy of Sciences, Chaoyang District, 100101 Beijing, China
| | - F Xiao-Feng Qin
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, 100005 Beijing, China; Suzhou Institute of Systems Medicine, Suzhou, 215123 Jiangsu, China
| | - Bo Zhang
- CAS Key Laboratory of Special Pathogens and Biosafety, Center for Emerging Infectious Diseases, Wuhan Institute of Virology, Chinese Academy of Science, 430071 Wuhan, China
| | - Danyang Gong
- Department of Molecular and Medical Pharmacology and California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Xinghong Dai
- Department of Molecular and Medical Pharmacology and California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ren Sun
- Department of Molecular and Medical Pharmacology and California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Bennett G Novitch
- Department of Neurobiology and Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095, USA.
| | - Zhiheng Xu
- State Key Laboratory of Molecular Developmental Biology, CAS Center for Excellence in Brain Science and Intelligence Technology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences; Parkinson's Disease Center, Beijing Institute for Brain Disorders, 100101 Beijing, China.
| | - Cheng-Feng Qin
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 100071 Beijing, China; Guangxi Medical University, 530021 Nanning, China.
| | - Genhong Cheng
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, 100005 Beijing, China; Suzhou Institute of Systems Medicine, Suzhou, 215123 Jiangsu, China; Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, CA 90095, USA.
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41
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Robertson KA, Ghazal P. Interferon Control of the Sterol Metabolic Network: Bidirectional Molecular Circuitry-Mediating Host Protection. Front Immunol 2016; 7:634. [PMID: 28066443 PMCID: PMC5179542 DOI: 10.3389/fimmu.2016.00634] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 12/12/2016] [Indexed: 12/12/2022] Open
Abstract
The sterol metabolic network is emerging center stage in inflammation and immunity. Historically, observational clinical studies show that hypocholesterolemia is a common side effect of interferon (IFN) treatment. More recently, comprehensive systems-wide investigations of the macrophage IFN response reveal a direct molecular link between cholesterol metabolism and infection. Upon infection, flux through the sterol metabolic network is acutely moderated by the IFN response at multiple regulatory levels. The precise mechanisms by which IFN regulates the mevalonate-sterol pathway—the spine of the network—are beginning to be unraveled. In this review, we discuss our current understanding of the multifactorial mechanisms by which IFN regulates the sterol pathway. We also consider bidirectional communications resulting in sterol metabolism regulation of immunity. Finally, we deliberate on how this fundamental interaction functions as an integral element of host protective responses to infection and harmful inflammation.
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Affiliation(s)
- Kevin A Robertson
- Division of Infection and Pathway Medicine, University of Edinburgh , Edinburgh , UK
| | - Peter Ghazal
- Division of Infection and Pathway Medicine, University of Edinburgh , Edinburgh , UK
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42
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Metabolic reprogramming & inflammation: Fuelling the host response to pathogens. Semin Immunol 2016; 28:450-468. [PMID: 27780657 DOI: 10.1016/j.smim.2016.10.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 10/14/2016] [Accepted: 10/17/2016] [Indexed: 12/24/2022]
Abstract
Successful immune responses to pathogens rely on efficient host innate processes to contain and limit bacterial growth, induce inflammatory response and promote antigen presentation for the development of adaptive immunity. This energy intensive process is regulated through multiple mechanisms including receptor-mediated signaling, control of phago-lysomal fusion events and promotion of bactericidal activities. Inherent macrophage activities therefore are dynamic and are modulated by signals and changes in the environment during infection. So too does the way these cells obtain their energy to adapt to altered homeostasis. It has emerged recently that the pathways employed by immune cells to derive energy from available or preferred nutrients underline the dynamic changes associated with immune activation. In particular, key breakpoints have been identified in the metabolism of glucose and lipids which direct not just how cells derive energy in the form of ATP, but also cellular phenotype and activation status. Much of this comes about through altered flux and accumulation of intermediate metabolites. How these changes in metabolism directly impact on the key processes required for anti-microbial immunity however, is less obvious. Here, we examine the 2 key nutrient utilization pathways employed by innate cells to fuel central energy metabolism and examine how these are altered in response to activation during infection, emphasising how certain metabolic switches or 'reprogramming' impacts anti-microbial processes. By examining carbohydrate and lipid pathways and how the flux of key intermediates intersects with innate immune signaling and the induction of bactericidal activities, we hope to illustrate the importance of these metabolic switches for protective immunity and provide a potential mechanism for how altered metabolic conditions in humans such as diabetes and hyperlipidemia alter the host response to infection.
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43
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Fessler MB. The Intracellular Cholesterol Landscape: Dynamic Integrator of the Immune Response. Trends Immunol 2016; 37:819-830. [PMID: 27692616 DOI: 10.1016/j.it.2016.09.001] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 09/02/2016] [Accepted: 09/06/2016] [Indexed: 12/11/2022]
Abstract
Cholesterol has typically been considered an exogenous, disease-related factor in immunity; however, recent literature suggests that a paradigm shift is in order. Sterols are now recognized to ligate several immune receptors. Altered flux through the mevalonic acid synthesis pathway also appears to be a required event in the antiviral interferon (IFN) response of macrophages and in the activation, proliferation, and differentiation of T cells. In this review, evidence is discussed that suggests an intrinsic, 'professional' role for sterols and oxysterols in macrophage and T-cell immunity. Host defense may have been the original selection pressure behind the development of mechanisms for intracellular cholesterol homeostasis. Functional coupling between sterol metabolism and immunity has fundamental implications for health and disease.
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Affiliation(s)
- Michael B Fessler
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, 111 T.W. Alexander Drive, P.O. Box 12233, MD D2-01 Research Triangle Park, NC 27709, USA.
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44
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Dennis EA. Liberating Chiral Lipid Mediators, Inflammatory Enzymes, and LIPID MAPS from Biological Grease. J Biol Chem 2016; 291:24431-24448. [PMID: 27555328 DOI: 10.1074/jbc.x116.723791] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
In 1970, it was well accepted that the central role of lipids was in energy storage and metabolism, and it was assumed that amphipathic lipids simply served a passive structural role as the backbone of biological membranes. As a result, the scientific community was focused on nucleic acids, proteins, and carbohydrates as information-containing molecules. It took considerable effort until scientists accepted that lipids also "encode" specific and unique biological information and play a central role in cell signaling. Along with this realization came the recognition that the enzymes that act on lipid substrates residing in or on membranes and micelles must also have important signaling roles, spurring curiosity into their potentially unique modes of action differing from those acting on water-soluble substrates. This led to the creation of the concept of "surface dilution kinetics" for describing the mechanism of enzymes acting on lipid substrates, as well as the demonstration that lipid enzymes such as phospholipase A2 (PLA2) contain allosteric activator sites for specific phospholipids as well as for membranes. As our understanding of phospholipases advanced, so did the understanding that many of the lipids released by these enzymes are chiral information-containing signaling molecules; for example, PLA2 regulates the generation of precursors for the biosynthesis of eicosanoids and other bioactive lipid mediators of inflammation and resolution underlying disease progression. The creation of the LIPID MAPS initiative in 2003 and the ensuing development of the lipidomics field have revealed that lipid metabolites are central to human metabolism. Today lipids are recognized as key mediators of health and disease as we enter a new era of biomarkers and personalized medicine. This article is my personal "reflection" on these scientific advances.
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Affiliation(s)
- Edward A Dennis
- From the Department of Chemistry and Biochemistry and Department of Pharmacology, School of Medicine, University of California at San Diego, La Jolla, California 92093-0601.
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45
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Eichenfield DZ, Troutman TD, Link VM, Lam MT, Cho H, Gosselin D, Spann NJ, Lesch HP, Tao J, Muto J, Gallo RL, Evans RM, Glass CK. Tissue damage drives co-localization of NF-κB, Smad3, and Nrf2 to direct Rev-erb sensitive wound repair in mouse macrophages. eLife 2016; 5. [PMID: 27462873 PMCID: PMC4963201 DOI: 10.7554/elife.13024] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 06/30/2016] [Indexed: 12/24/2022] Open
Abstract
Although macrophages can be polarized to distinct phenotypes in vitro with individual ligands, in vivo they encounter multiple signals that control their varied functions in homeostasis, immunity, and disease. Here, we identify roles of Rev-erb nuclear receptors in regulating responses of mouse macrophages to complex tissue damage signals and wound repair. Rather than reinforcing a specific program of macrophage polarization, Rev-erbs repress subsets of genes that are activated by TLR ligands, IL4, TGFβ, and damage-associated molecular patterns (DAMPS). Unexpectedly, a complex damage signal promotes co-localization of NF-κB, Smad3, and Nrf2 at Rev-erb-sensitive enhancers and drives expression of genes characteristic of multiple polarization states in the same cells. Rev-erb-sensitive enhancers thereby integrate multiple damage-activated signaling pathways to promote a wound repair phenotype. DOI:http://dx.doi.org/10.7554/eLife.13024.001
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Affiliation(s)
- Dawn Z Eichenfield
- Department of Cellular and Molecular Medicine, University of California, San Diego, San Diego, United States.,Biomedical Sciences Graduate Program, University of California, San Diego, San Diego, United States
| | - Ty Dale Troutman
- Department of Cellular and Molecular Medicine, University of California, San Diego, San Diego, United States
| | - Verena M Link
- Department of Cellular and Molecular Medicine, University of California, San Diego, San Diego, United States.,Department II, Faculty of Biology, Ludwig-Maximilian Universität München, Planegg-Martinsried, Germany
| | - Michael T Lam
- Department of Cellular and Molecular Medicine, University of California, San Diego, San Diego, United States.,Biomedical Sciences Graduate Program, University of California, San Diego, San Diego, United States.,Department of Medicine, University of California, San Diego, San Diego, United States
| | - Han Cho
- Salk Institute for Biological Sciences, La Jolla, United States
| | - David Gosselin
- Department of Cellular and Molecular Medicine, University of California, San Diego, San Diego, United States
| | - Nathanael J Spann
- Department of Cellular and Molecular Medicine, University of California, San Diego, San Diego, United States
| | - Hanna P Lesch
- Department of Cellular and Molecular Medicine, University of California, San Diego, San Diego, United States
| | - Jenhan Tao
- Department of Cellular and Molecular Medicine, University of California, San Diego, San Diego, United States
| | - Jun Muto
- Department of Dermatology, University of California, San Diego, San Diego, United States
| | - Richard L Gallo
- Department of Dermatology, University of California, San Diego, San Diego, United States
| | - Ronald M Evans
- Salk Institute for Biological Sciences, La Jolla, United States
| | - Christopher K Glass
- Department of Cellular and Molecular Medicine, University of California, San Diego, San Diego, United States.,Department of Medicine, University of California, San Diego, San Diego, United States
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46
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An Interferon Regulated MicroRNA Provides Broad Cell-Intrinsic Antiviral Immunity through Multihit Host-Directed Targeting of the Sterol Pathway. PLoS Biol 2016; 14:e1002364. [PMID: 26938778 PMCID: PMC4777525 DOI: 10.1371/journal.pbio.1002364] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 12/22/2015] [Indexed: 12/11/2022] Open
Abstract
In invertebrates, small interfering RNAs are at the vanguard of cell-autonomous antiviral immunity. In contrast, antiviral mechanisms initiated by interferon (IFN) signaling predominate in mammals. Whilst mammalian IFN-induced miRNA are known to inhibit specific viruses, it is not known whether host-directed microRNAs, downstream of IFN-signaling, have a role in mediating broad antiviral resistance. By performing an integrative, systematic, global analysis of RNA turnover utilizing 4-thiouridine labeling of newly transcribed RNA and pri/pre-miRNA in IFN-activated macrophages, we identify a new post-transcriptional viral defense mechanism mediated by miR-342-5p. On the basis of ChIP and site-directed promoter mutagenesis experiments, we find the synthesis of miR-342-5p is coupled to the antiviral IFN response via the IFN-induced transcription factor, IRF1. Strikingly, we find miR-342-5p targets mevalonate-sterol biosynthesis using a multihit mechanism suppressing the pathway at different functional levels: transcriptionally via SREBF2, post-transcriptionally via miR-33, and enzymatically via IDI1 and SC4MOL. Mass spectrometry-based lipidomics and enzymatic assays demonstrate the targeting mechanisms reduce intermediate sterol pathway metabolites and total cholesterol in macrophages. These results reveal a previously unrecognized mechanism by which IFN regulates the sterol pathway. The sterol pathway is known to be an integral part of the macrophage IFN antiviral response, and we show that miR-342-5p exerts broad antiviral effects against multiple, unrelated pathogenic viruses such Cytomegalovirus and Influenza A (H1N1). Metabolic rescue experiments confirm the specificity of these effects and demonstrate that unrelated viruses have differential mevalonate and sterol pathway requirements for their replication. This study, therefore, advances the general concept of broad antiviral defense through multihit targeting of a single host pathway.
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47
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Lu H, Talbot S, Robertson KA, Watterson S, Forster T, Roy D, Ghazal P. Rapid proteasomal elimination of 3-hydroxy-3-methylglutaryl-CoA reductase by interferon-γ in primary macrophages requires endogenous 25-hydroxycholesterol synthesis. Steroids 2015; 99:219-29. [PMID: 25759117 PMCID: PMC4503878 DOI: 10.1016/j.steroids.2015.02.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Revised: 02/22/2015] [Accepted: 02/25/2015] [Indexed: 12/21/2022]
Abstract
Interferons (IFNs) play a central role in immunity and emerging evidence suggests that IFN-signalling coordinately regulates sterol biosynthesis in macrophages, via Sterol Regulatory Element-Binding Protein (SREBP) dependent and independent pathways. However, the precise mechanisms and kinetic steps by which IFN controls sterol biosynthesis are as yet not fully understood. Here, we elucidate the molecular circuitry governing how IFN controls the first regulated step in the mevalonate-sterol pathway, 3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR), through the synthesis of 25-Hydroxycholesterol (25-HC) from cholesterol by the IFN-inducible Cholesterol-25-Hydroxylase (CH25H). We show for the first 30-min of IFN stimulation of macrophages the rate of de novo synthesis of the Ch25h transcript is markedly increased but by 120-min becomes transcriptionally curtailed, coincident with induction of the Activating Transcription Factor 3 (ATF3) repressor. We demonstrate ATF3 induction by Toll-like receptors is strictly dependent on IFN-signalling. While the SREBP-pathway dependent rates of de novo transcription of Hmgcr are relatively unchanged in the first 90-min of IFN treatment, we find HMGCR enzyme levels undergo a rapid proteasomal-mediated degradation, defining a previously unappreciated SREBP-independent mechanism for IFN-action. These events precede a sustained marked reduction in Hmgcr RNA levels involving SREBP-dependent mechanisms. We demonstrate that HMGCR proteasomal-degradation by IFN strictly requires the synthesis of endogenous 25-HC and functionally couples HMGCR to CH25H to coordinately suppress sterol biosynthesis. In conclusion, we quantitatively delineate proteomic and transcriptional levels of IFN-mediated control of HMGCR, the primary enzymatic step of the mevalonate-sterol biosynthesis pathway, providing a foundational framework for mathematically modelling the therapeutic outcome of immune-metabolic pathways.
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Affiliation(s)
- Hongjin Lu
- Division of Infection and Pathway Medicine, University of Edinburgh, Edinburgh EH16 4SB, United Kingdom
| | - Simon Talbot
- Division of Infection and Pathway Medicine, University of Edinburgh, Edinburgh EH16 4SB, United Kingdom
| | - Kevin A Robertson
- Division of Infection and Pathway Medicine, University of Edinburgh, Edinburgh EH16 4SB, United Kingdom; SynthSys at Edinburgh University, The Kings Buildings, Edinburgh, United Kingdom
| | - Steven Watterson
- Northern Ireland Centre for Stratified Medicine, University of Ulster, Altnagelvin Hospital Campus, Derry, Co Londonderry, Northern Ireland BT47 6SB, United Kingdom
| | - Thorsten Forster
- Division of Infection and Pathway Medicine, University of Edinburgh, Edinburgh EH16 4SB, United Kingdom; SynthSys at Edinburgh University, The Kings Buildings, Edinburgh, United Kingdom
| | - Douglas Roy
- Division of Infection and Pathway Medicine, University of Edinburgh, Edinburgh EH16 4SB, United Kingdom
| | - Peter Ghazal
- Division of Infection and Pathway Medicine, University of Edinburgh, Edinburgh EH16 4SB, United Kingdom; SynthSys at Edinburgh University, The Kings Buildings, Edinburgh, United Kingdom.
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48
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Singaravelu R, Srinivasan P, Pezacki JP. Armand-Frappier Outstanding Student Award--The emerging role of 25-hydroxycholesterol in innate immunity. Can J Microbiol 2015; 61:521-30. [PMID: 26182401 DOI: 10.1139/cjm-2015-0292] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The metabolic interplay between hosts and viruses plays a crucial role in determining the outcome of viral infection. Viruses reorchestrate the host's primary metabolic gene networks, including genes associated with mevalonate and isoprenoid synthesis, to acquire the necessary energy and structural components for their viral life cycles. Recent work has demonstrated that the interferon-mediated antiviral response suppresses the sterol pathway through production of a signalling molecule, 25-hydroxycholesterol (25HC). This oxysterol has been shown to exert multiple effects, both through incorporation into host cellular membranes as well as through transcriptional control. Herein, we summarize our current understanding of the multifunctional roles of 25HC in the mammalian innate antiviral response.
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Affiliation(s)
- Ragunath Singaravelu
- a Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1N 6N5, Canada.,b Life Sciences Division, National Research Council Canada, Ottawa, ON K1A 0R6, Canada
| | - Prashanth Srinivasan
- a Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1N 6N5, Canada.,b Life Sciences Division, National Research Council Canada, Ottawa, ON K1A 0R6, Canada
| | - John Paul Pezacki
- a Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1N 6N5, Canada.,b Life Sciences Division, National Research Council Canada, Ottawa, ON K1A 0R6, Canada.,c Department of Chemistry, University of Ottawa, Ottawa, ON K1N 6N5, Canada
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49
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Kotzamanis K, Angulo A, Ghazal P. Infection homeostasis: implications for therapeutic and immune programming of metabolism in controlling infection. Med Microbiol Immunol 2015; 204:395-407. [PMID: 25800350 PMCID: PMC4439431 DOI: 10.1007/s00430-015-0402-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 02/28/2015] [Indexed: 12/16/2022]
Abstract
Homeostasis underpins at a systems level the regulatory control of immunity and metabolism. While physiologically these systems are often viewed as independent, there is increasing evidence showing a tight coupling between immune and metabolic functions. Critically upon infection, the homeostatic regulation for both immune and metabolic pathways is altered yet these changes are often investigated in isolation. Here, we summarise our current understanding of these processes in the context of a clinically relevant pathogen, cytomegalovirus. We synthesise from the literature an integrative view of a coupled immune-metabolic infection process, centred on sugar and lipid metabolism. We put forward the notion that understanding immune control of key metabolic enzymatic steps in infection will promote the future development of novel therapeutic modalities based on metabolic modifiers that either enhance protection or inhibit infection.
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Affiliation(s)
- Konstantinos Kotzamanis
- Division of Pathway and Infection Medicine, Edinburgh Infectious Diseases, University of Edinburgh, Medical School, Edinburgh, Scotland, UK
| | - Ana Angulo
- Institut d’Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | - Peter Ghazal
- Division of Pathway and Infection Medicine, Edinburgh Infectious Diseases, University of Edinburgh, Medical School, Edinburgh, Scotland, UK
- SynthSys, University of Edinburgh, The King’s Buildings, Edinburgh, Scotland, UK
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50
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Liu L, Si L, Meng X, Luo L. Comparative transcriptomic analysis reveals novel genes and regulatory mechanisms of Tetragenococcus halophilus in response to salt stress. J Ind Microbiol Biotechnol 2015; 42:601-16. [PMID: 25563971 DOI: 10.1007/s10295-014-1579-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Accepted: 12/25/2014] [Indexed: 11/29/2022]
Abstract
Tetragenococcus halophilus, a moderately halophilic Gram-positive bacterium, was isolated from Chinese style soy sauce. This species is a valuable resource for investigating salt tolerance mechanisms and improving salinity resistance in microorganisms. RNA-seq was used to sequence T. halophilus samples treated with 0 M (T1), 1 M (T2), and 3.5 M NaCl (T3). Comparative transcriptomic analyses of the different treatments were performed using gene ontology and Kyoto encyclopedia of genes and genome. The comparison of T1 and T2 by RNA-seq revealed that genes involved in transcription, translation, membrane system, and division were highly up-regulated under optimum salt condition. The comparison of T2 and T3 showed that genes related to heat shock proteins or the ATP-binding cassette transport systems were significantly up-regulated under maximum-salt condition. In addition, a considerable proportion of the significantly differently expressed genes identified in this study are novel. These data provide a crucial resource that may determine specific responses to salt stress in T. halophilus.
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Affiliation(s)
- Licui Liu
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, China
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