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Xu J, Zhao A, Chen D, Wang J, Ma J, Qing L, Li Y, Fang H, He H, Pan W, Zhang S. Discovery of tricyclic PARP7 inhibitors with high potency, selectivity, and oral bioavailability. Eur J Med Chem 2024; 266:116160. [PMID: 38277917 DOI: 10.1016/j.ejmech.2024.116160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 01/28/2024]
Abstract
PARP7 has been recently identified as an effective drug target due to its specific role in tumor generation and immune function recovery. Herin, we report the discovery of compound 8, which contained a tricyclic fused ring, as a highly selective PARP7 inhibitor against other PARPs. In particular, compound 8 strongly inhibits PARP7 with an IC50 of 0.11 nM, and suppresses the proliferation of NCI-H1373 lung cancer cells with an IC50 of 2.5 nM. Compound 8 exhibits a favorable pharmacokinetic profile with a bioavailability of 104 % in mice, and 78 % in dogs. Importantly, daily treatment of 30 mg/kg of 8 induced 81.6 % tumor suppression in NCI-H1373 lung xenograft mice tumor models, which is significantly better than the clinical candidate, RBN-2397. These intriguing features highlight the promising advantages of 8 as an antitumor agent.
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Affiliation(s)
- Juan Xu
- College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, Hubei Polytechnic University, Huangshi, 435003, PR China; Wuhan Yuxiang Pharmaceutical Technology Co., Ltd., Wuhan, 430200, PR China
| | - Anmin Zhao
- College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, Hubei Polytechnic University, Huangshi, 435003, PR China
| | - Danni Chen
- College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, Hubei Polytechnic University, Huangshi, 435003, PR China
| | - Jiao Wang
- College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, Hubei Polytechnic University, Huangshi, 435003, PR China
| | - Jirui Ma
- College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Mine Environmental Pollution Control & Remediation, Hubei Polytechnic University, Huangshi, 435003, PR China
| | - Luolong Qing
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, PR China
| | - Yuanyuan Li
- School of Life Science and Technology, Wuhan Polytechnic University, Wuhan, 430023, PR China; Wuhan Yuxiang Pharmaceutical Technology Co., Ltd., Wuhan, 430200, PR China
| | - Huaxiang Fang
- Wuhan Yuxiang Pharmaceutical Technology Co., Ltd., Wuhan, 430200, PR China
| | - Huan He
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, PR China; Wuhan Yuxiang Pharmaceutical Technology Co., Ltd., Wuhan, 430200, PR China.
| | - Weidong Pan
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, PR China.
| | - Silong Zhang
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, PR China; Wuhan Yuxiang Pharmaceutical Technology Co., Ltd., Wuhan, 430200, PR China.
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2
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Cano-Vicent A, Tuñón-Molina A, Bakshi H, Alfagih IM, Tambuwala MM, Serrano-Aroca Á. Biocompatible Alginate Hydrogel Film Containing Acetic Acid Manifests Broad-Spectrum Antiviral and Anticancer Activities. Biomedicines 2023; 11:2549. [PMID: 37760990 PMCID: PMC10526879 DOI: 10.3390/biomedicines11092549] [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: 08/10/2023] [Revised: 09/08/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023] Open
Abstract
Acetic acid, a colourless liquid organic acid with a characteristic acrid smell, is obtained naturally and has applications in both the food and pharmaceutical industries. It has been reported to have beneficial uses for lifestyle-related diseases, and its efficient disinfectant properties are well known. In this study, an alginate crosslinked with Ca2+ hydrogel film was treated with acetic acid to explore its biological properties for biomedicine. The results showed that the novel calcium alginate/acetic acid film was biocompatible in vitro using human keratinocyte cells and in vivo with Caenorhabditis elegans. It also had antiviral properties against enveloped and non-enveloped viruses and anticancer properties against melanoma and colon cancer cells. This novel film thus showed promise for the biomedical and pharmaceutical industries, with applications for fabricating broad-spectrum antiviral and anticancer materials.
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Affiliation(s)
- Alba Cano-Vicent
- Biomaterials and Bioengineering Lab, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain; (A.C.-V.); (A.T.-M.)
| | - Alberto Tuñón-Molina
- Biomaterials and Bioengineering Lab, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain; (A.C.-V.); (A.T.-M.)
| | - Hamid Bakshi
- Hormel Institute, University of Minnesota, Austin, MN 55912, USA;
| | - Iman M. Alfagih
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 4545, Saudi Arabia;
| | - Murtaza M. Tambuwala
- Brayford Pool Campus, Lincoln Medical School, University of Lincoln, Lincoln LN6 7TS, UK
| | - Ángel Serrano-Aroca
- Biomaterials and Bioengineering Lab, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain; (A.C.-V.); (A.T.-M.)
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3
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Cano-Vicent A, Tuñón-Molina A, Martí M, Serrano-Aroca Á. Biocompatible Chitosan Films Containing Acetic Acid Manifested Potent Antiviral Activity against Enveloped and Non-Enveloped Viruses. Int J Mol Sci 2023; 24:12028. [PMID: 37569404 PMCID: PMC10418510 DOI: 10.3390/ijms241512028] [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: 06/21/2023] [Revised: 07/16/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
Chitosan films were prepared by solvent casting using an acetic acid-based solution. The films that were developed contained 15.49% of acetic acid solution (10% v/v) and showed biocompatibility in vitro in human keratinocyte HaCaT cells and potent antiviral activity against both enveloped and non-enveloped viruses. The results showed up to 99.98% and 99.92% viral inactivation against the phi 6 enveloped bacteriophage and MS2 non-enveloped bacteriophage, respectively, suggesting that this chitosan/acetic acid film is a promising material for biomedical applications that require biodegradable broad-spectrum antiviral materials.
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Affiliation(s)
| | | | | | - Ángel Serrano-Aroca
- Biomaterials and Bioengineering Lab, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain; (A.C.-V.); (A.T.-M.); (M.M.)
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4
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Amurri L, Horvat B, Iampietro M. Interplay between RNA viruses and cGAS/STING axis in innate immunity. Front Cell Infect Microbiol 2023; 13:1172739. [PMID: 37077526 PMCID: PMC10106766 DOI: 10.3389/fcimb.2023.1172739] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 03/21/2023] [Indexed: 04/05/2023] Open
Abstract
While the function of cGAS/STING signalling axis in the innate immune response to DNA viruses is well deciphered, increasing evidence demonstrates its significant contribution in the control of RNA virus infections. After the first evidence of cGAS/STING antagonism by flaviviruses, STING activation has been detected following infection by various enveloped RNA viruses. It has been discovered that numerous viral families have implemented advanced strategies to antagonize STING pathway through their evolutionary path. This review summarizes the characterized cGAS/STING escape strategies to date, together with the proposed mechanisms of STING signalling activation perpetrated by RNA viruses and discusses possible therapeutic approaches. Further studies regarding the interaction between RNA viruses and cGAS/STING-mediated immunity could lead to major discoveries important for the understanding of immunopathogenesis and for the treatment of RNA viral infections.
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Occhigrossi L, Rossin F, Villella VR, Esposito S, Abbate C, D'Eletto M, Farrace MG, Tosco A, Nardacci R, Fimia GM, Raia V, Piacentini M. The STING/TBK1/IRF3/IFN type I pathway is defective in cystic fibrosis. Front Immunol 2023; 14:1093212. [PMID: 36923406 PMCID: PMC10008931 DOI: 10.3389/fimmu.2023.1093212] [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: 11/08/2022] [Accepted: 02/14/2023] [Indexed: 03/02/2023] Open
Abstract
Cystic fibrosis (CF) is a rare autosomal recessive disease caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene. The most common mutation is F508del-CFTR (ΔF) which leads the encoded ion channel towards misfolding and premature degradation. The disease is characterized by chronic bronchopulmonary obstruction, inflammation and airways colonization by bacteria, which are the major cause of morbidity and mortality. The STING pathway is the main signaling route activated in the presence of both self and pathogen DNA, leading to Type I Interferon (IFN I) production and the innate immune response. In this study, we show for the first time the relationship existing in CF between resistant and recurrent opportunistic infections by Pseudomonas aeruginosa and the innate immunity impairment. We demonstrate through ex vivo and in vivo experiments that the pathway is inadequately activated in ΔF condition and the use of direct STING agonists, as 2',3'-cyclic GMP-AMP (2', 3' cGAMP), is able to restore the immune response against bacterial colonization. Indeed, upon treatment with the STING pathway agonists, we found a reduction of colony forming units (CFUs) consequent to IFN-β enhanced production in Pseudomonas aeruginosa infected bone marrow derived macrophages and lung tissues from mice affected by Cystic Fibrosis. Importantly, we also verified that the impairment detected in the primary PBMCs obtained from ΔF patients can be corrected by 2', 3' cGAMP. Our work indicates that the cGAS/STING pathway integrity is crucial in the Cystic Fibrosis response against pathogens and that the restoration of the pathway by 2', 3' cGAMP could be exploited as a possible new target for the symptomatic treatment of the disease.
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Affiliation(s)
- Luca Occhigrossi
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases IRCCS 'L, Spallanzani', Rome, Italy
| | - Federica Rossin
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | - Valeria Rachela Villella
- European Institute for Research in Cystic Fibrosis, at National Institute for Infectious Diseases IRCCS 'L, Spallanzani', Rome, Italy
| | - Speranza Esposito
- European Institute for Research in Cystic Fibrosis, at National Institute for Infectious Diseases IRCCS 'L, Spallanzani', Rome, Italy.,Department of Molecular Medicine, University of Rome "La Sapienza", Rome, Italy
| | - Carlo Abbate
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | - Manuela D'Eletto
- Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
| | | | - Antonella Tosco
- Pediatric Unit, Department of Translational Medical Sciences, Regional Cystic Fibrosis Center, Federico II University Naples, Naples, Italy
| | - Roberta Nardacci
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases IRCCS 'L, Spallanzani', Rome, Italy.,Departmental Faculty of Medicine and Surgery, UniCamillus-Saint Camillus International University of Health and Medical Sciences, Rome, Italy
| | - Gian Maria Fimia
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases IRCCS 'L, Spallanzani', Rome, Italy.,Department of Molecular Medicine, University of Rome "La Sapienza", Rome, Italy
| | - Valeria Raia
- European Institute for Research in Cystic Fibrosis, at National Institute for Infectious Diseases IRCCS 'L, Spallanzani', Rome, Italy.,Pediatric Unit, Department of Translational Medical Sciences, Regional Cystic Fibrosis Center, Federico II University Naples, Naples, Italy
| | - Mauro Piacentini
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases IRCCS 'L, Spallanzani', Rome, Italy.,Department of Biology, University of Rome 'Tor Vergata', Rome, Italy
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6
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Gampa M, Padmaja P, Khalivulla SI, Reddy PN. Synthesis and Antimicrobial and Antioxidant Activities of 1,2,3-Triazole-Tethered Xanthone Derivatives. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1070428022060173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Fan YM, Zhang YL, Luo H, Mohamud Y. Crosstalk between RNA viruses and DNA sensors: Role of the cGAS‐STING signalling pathway. Rev Med Virol 2022; 32:e2343. [DOI: 10.1002/rmv.2343] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/17/2022] [Accepted: 02/22/2022] [Indexed: 12/13/2022]
Affiliation(s)
- Yiyun Michelle Fan
- Center for Heart Lung Innovation St. Paul's Hospital University of British Columbia Vancouver British Columbia Canada
- Department of Cellular & Physiological Sciences University of British Columbia Vancouver British Columbia Canada
| | - Yizhuo Lyanne Zhang
- Center for Heart Lung Innovation St. Paul's Hospital University of British Columbia Vancouver British Columbia Canada
- Department of Cellular & Physiological Sciences University of British Columbia Vancouver British Columbia Canada
| | - Honglin Luo
- Center for Heart Lung Innovation St. Paul's Hospital University of British Columbia Vancouver British Columbia Canada
- Department of Pathology and Laboratory Medicine University of British Columbia Vancouver British Columbia Canada
| | - Yasir Mohamud
- Center for Heart Lung Innovation St. Paul's Hospital University of British Columbia Vancouver British Columbia Canada
- Department of Pathology and Laboratory Medicine University of British Columbia Vancouver British Columbia Canada
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8
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Ebob OT, Babiaka SB, Ntie-Kang F. Natural Products as Potential Lead Compounds for Drug Discovery Against SARS-CoV-2. NATURAL PRODUCTS AND BIOPROSPECTING 2021; 11:611-628. [PMID: 34515981 PMCID: PMC8435765 DOI: 10.1007/s13659-021-00317-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/01/2021] [Indexed: 05/09/2023]
Abstract
For the past 2 years, the coronavirus responsible for the COVID-19 infection has become a world pandemic, ruining the lives and economies of several nations in the world. This has scaled up research on the virus and the resulting infection with the goal of developing new vaccines and therapies. Natural products are known to be a rich source of lead compounds for drug discovery, including against infectious diseases caused by microbes (viruses, bacteria and fungi). In this review article, we conducted a literature survey aimed at identifying natural products with inhibitory concentrations against the coronaviruses or their target proteins, which lie below 10 µM. This led to the identification of 42 compounds belonging to the alkaloid, flavonoid, terpenoid, phenolic, xanthone and saponin classes. The cut off concentration of 10 µM was to limit the study to the most potent chemical entities, which could be developed into therapies against the viral infection to make a contribution towards limiting the spread of the disease.
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Affiliation(s)
- Oyere Tanyi Ebob
- Department of Chemistry, Faculty of Science, University of Buea, P.O. Box 63, Buea, Cameroon
| | - Smith B. Babiaka
- Department of Chemistry, Faculty of Science, University of Buea, P.O. Box 63, Buea, Cameroon
| | - Fidele Ntie-Kang
- Department of Chemistry, Faculty of Science, University of Buea, P.O. Box 63, Buea, Cameroon
- Institute for Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 3, 06120 Halle (Saale), Germany
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9
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Khan IU, Brooks G, Guo NN, Chen J, Guo F. Fever-range hyperthermia promotes cGAS-STING pathway and synergizes DMXAA-induced antiviral immunity. Int J Hyperthermia 2021; 38:30-37. [PMID: 33444507 DOI: 10.1080/02656736.2020.1868582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Background: Fever-range hyperthermia or fever-range temperature (hereafter FRT) improves survival and shortens disease duration in microbial infections. However, the mechanisms of these beneficial effects still remain elusive. We hypothesized that FRT might enhance cell responsiveness to infections by promoting cGAS-STING signaling to cause enhanced production of IFN-β. Objective: To investigate the effect fever-range hyperthermia on cGAS-STING pathway. Methods: RAW 264.7 and cGAS-/- RAW 264.7 cells, stimulated with 5μg/ml herring testis DNA (htDNA), were heated to 39.5°C and analyzed for the expression of cGAS, STING, IFN-β, and the synthesis of cGAMP and IRF3 phosphorylation. In vivo, wild type C57BL/6J mice were subjected to whole body hyperthermia (WBH) at 39.5°C. The mice were then challenged with influenza virus and analyzed for antiviral response in term of IFN-β expression, body weight and survival. Results: We found that 39.5°C FRT upregulated the expression of cGAS and STING, and induced the synthesis of cGAMP and production of IFN-β in htDNA-transfected RAW 264.7 cells more potently as compared to 37°C. Moreover, FRT+DMXAA-treated cells were better protected from vesicular stomatitis virus (VSV)-induced cytotoxicity in vitro in contrast to the nonprotected control (no FRT and DMXAA) or DMXAA treatment alone. In vivo, FRT at 39.5°C, co-administered with DMXAA, significantly induced the expression of IFN-β, showed reduced weight loss mice and exhibited 25% more survival over the course of 14 days as compared to DMXAA treated mice 37°C. Conclusion: We conclude that fever-range hyperthermia promotes cGAS-STING pathway to cause increased expression of IFN-β and mediate its antiviral effects.
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Affiliation(s)
- Inam Ullah Khan
- Key Laboratory of System Biomedicine of the Ministry of Education, Shanghai Jiao Tong University, Shanghai, PR China
| | - Gabriel Brooks
- Department of Microbiology and Immunology, School of Medicine, University of Maryland, Baltimore, MD, USA
| | - Nina Ni Guo
- Key Laboratory of System Biomedicine of the Ministry of Education, Shanghai Jiao Tong University, Shanghai, PR China
| | - Junsong Chen
- Key Laboratory of System Biomedicine of the Ministry of Education, Shanghai Jiao Tong University, Shanghai, PR China
| | - Fang Guo
- Key Laboratory of System Biomedicine of the Ministry of Education, Shanghai Jiao Tong University, Shanghai, PR China
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10
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Daei Farshchi Adli A, Jahanban-Esfahlan R, Seidi K, Farajzadeh D, Behzadi R, Zarghami N. Co-Administration of Vadimezan and Recombinant Coagulase-NGR Inhibits Growth of Melanoma Tumor in Mice. Adv Pharm Bull 2020; 11:385-392. [PMID: 33880362 PMCID: PMC8046391 DOI: 10.34172/apb.2021.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 03/01/2020] [Accepted: 04/15/2020] [Indexed: 12/15/2022] Open
Abstract
Purpose: Tumor vascular targeting appeared as an appealing approach to fight cancer, though, the results from the clinical trials and drugs in the market were proved otherwise. The promise of anti-angiogenic therapy as the leading tumor vascular targeting strategy was negatively affected with the discovery that tumor vascularization can occur non-angiogenic mechanisms such as co-option. An additional strategy is induction of tumor vascular infarction and ischemia. Methods: Such that we used truncated coagulase (tCoa) coupled to tumor endothelial targeting moieties to produce tCoa-NGR fusion proteins. We showed that tCoa-NGR can bypass coagulation cascade to induce selective vascular thrombosis and infarction of mild and highly proliferative solid tumors in mice. Moreover, combination therapy can be used to improve the potential of cancer vascular targeting modalities. Herein, we report combination of tCoa-NGR with vascular disrupting agent (VDA), vadimezan. Results: Our results show that synergistic work of these two agents can significantly suppress growth of B16-F10 melanoma tumors in C57/BL6 mice. Conclusion: For the first time, we used the simultaneous benefits of two strategies for inducing thrombosis and destruction of tumor vasculature as spatial co-operation. The tCoa-NGR induce thrombosis which reduces blood flow in the peripheral tumor region. And combined with the action of DMXAA, which target inner tumor mass, growth and proliferation of melanoma tumors can be significantly suppressed.
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Affiliation(s)
- Amir Daei Farshchi Adli
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Rana Jahanban-Esfahlan
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khaled Seidi
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Davoud Farajzadeh
- Department of Cellular and Molecular Biology, Faculty of Biological Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Ramezan Behzadi
- North Research Center, Pasture Institute of Iran, Tehran, Amol, Iran
| | - Nosratollah Zarghami
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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11
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Zhao Q, Manohar M, Wei Y, Pandol SJ, Habtezion A. STING signalling protects against chronic pancreatitis by modulating Th17 response. Gut 2019; 68:1827-1837. [PMID: 30705050 PMCID: PMC7069765 DOI: 10.1136/gutjnl-2018-317098] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 01/07/2019] [Accepted: 01/08/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Chronic pancreatitis (CP) is an inflammatory disease with progressive fibrosis leading to exocrine and endocrine dysfunction. Currently, there are no approved effective therapies for CP. Stimulator of interferon genes (STING) signalling is a key innate immune sensor of DNA. In this study, we evaluated the role of STING signalling in CP. DESIGN We used an experimental model of CP to test the effect of STING signalling in STING wild-type and knockout mice as well as bone marrow chimaeras (BMCs). STING was activated using a pharmacological agent. Since we found changes in Th17 cells, we used neutralising and control antibodies to determine the role of IL-17A. The effect of STING signalling was further explored in IL-17A generation and we examined the effect of IL-17A on pancreatic stellate cells (PSCs). Human pancreas from patients with CP and without CP were also stained for IL-17A. RESULTS STING activation decreased CP-associated pancreatic inflammation and fibrosis, whereas absence of STING led to worsening of the disease. BMCs showed that leucocytes play an important role in STING signalling-mediated amelioration of experimental CP. STING deletion was associated with increased Th17 cell infiltration in the pancreas, whereas STING agonist limited this Th17 response. Importantly, anti-IL-17A antibody treatment mitigated the severity of CP in the absence of STING signalling. STING deficiency promoted Th17 polarisation and PSCs express functional IL-17 receptor by upregulating fibrosis genes. Compared with tumour margins, pancreas from patients with CP had significant increase in IL-17A+ cells. CONCLUSION Unlike acute pancreatitis, STING activation is protective in CP. STING signalling is important in regulating adaptive immune responses by diminishing generation of IL-17A during CP and presents a novel therapeutic target for CP.
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Affiliation(s)
- Qinglan Zhao
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Murli Manohar
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Yi Wei
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Stephen J. Pandol
- Cedars-Sinai Medical Center and Department of Veterans Affairs, Los Angeles, California
| | - Aida Habtezion
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA 94305, USA
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12
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Sanchez David RY, Combredet C, Najburg V, Millot GA, Beauclair G, Schwikowski B, Léger T, Camadro JM, Jacob Y, Bellalou J, Jouvenet N, Tangy F, Komarova AV. LGP2 binds to PACT to regulate RIG-I- and MDA5-mediated antiviral responses. Sci Signal 2019; 12:eaar3993. [PMID: 31575732 DOI: 10.1126/scisignal.aar3993] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The retinoic acid-inducible gene I (RIG-I)-like receptors (RLRs) RIG-I, MDA5, and LGP2 stimulate inflammatory and antiviral responses by sensing nonself RNA molecules produced during viral replication. Here, we investigated how LGP2 regulates the RIG-I- and MDA5-dependent induction of type I interferon (IFN) signaling and showed that LGP2 interacted with different components of the RNA-silencing machinery. We identified a direct protein-protein interaction between LGP2 and the IFN-inducible, double-stranded RNA binding protein PACT. The LGP2-PACT interaction was mediated by the regulatory C-terminal domain of LGP2 and was necessary for inhibiting RIG-I-dependent responses and for amplifying MDA5-dependent responses. We described a point mutation within LGP2 that disrupted the LGP2-PACT interaction and led to the loss of LGP2-mediated regulation of RIG-I and MDA5 signaling. These results suggest a model in which the LGP2-PACT interaction regulates the inflammatory responses mediated by RIG-I and MDA5 and enables the cellular RNA-silencing machinery to coordinate with the innate immune response.
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Affiliation(s)
- Raul Y Sanchez David
- Unité de Génomique Virale et Vaccination, Institut Pasteur, CNRS UMR-3569, Paris, France
- Ecole doctorale B3MI/Paris7, Paris, France
| | - Chantal Combredet
- Unité de Génomique Virale et Vaccination, Institut Pasteur, CNRS UMR-3569, Paris, France
| | - Valérie Najburg
- Unité de Génomique Virale et Vaccination, Institut Pasteur, CNRS UMR-3569, Paris, France
| | - Gael A Millot
- Hub de Bioinformatique et Biostatistique-C3BI, Institut Pasteur, USR 3756 CNRS, Paris, France
| | - Guillaume Beauclair
- Unité de Génomique Virale et Vaccination, Institut Pasteur, CNRS UMR-3569, Paris, France
| | - Benno Schwikowski
- Systems Biology Laboratory and USR 3756, Institut Pasteur and CNRS, Paris, France
| | - Thibaut Léger
- Mass Spectrometry Laboratory, Institut Jacques Monod, UMR 7592, Univ Paris Diderot, CNRS, Sorbonne Paris Cité, F-75205 Paris, France
| | - Jean-Michel Camadro
- Mass Spectrometry Laboratory, Institut Jacques Monod, UMR 7592, Univ Paris Diderot, CNRS, Sorbonne Paris Cité, F-75205 Paris, France
- Mitochondria, Metals, and Oxidative Stress Group, Institut Jacques Monod, UMR 7592, Université Paris Diderot, CNRS, Sorbonne Paris Cité, F-75205 Paris, France
| | - Yves Jacob
- Unité de Génétique Moléculaire des Virus à ARN, Institut Pasteur, Paris, France
| | - Jacques Bellalou
- Platform of Recombinant Proteins in Prokaryotic Cells, Institut Pasteur, 75015, CNRS UMR 3528, Paris, France
| | - Nolwenn Jouvenet
- Unité de Génomique Virale et Vaccination, Institut Pasteur, CNRS UMR-3569, Paris, France
| | - Frédéric Tangy
- Unité de Génomique Virale et Vaccination, Institut Pasteur, CNRS UMR-3569, Paris, France.
| | - Anastassia V Komarova
- Unité de Génomique Virale et Vaccination, Institut Pasteur, CNRS UMR-3569, Paris, France.
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Zhang X, Liu B, Tang L, Su Q, Hwang N, Sehgal M, Cheng J, Ma J, Zhang X, Tan Y, Zhou Y, Duan Z, DeFilippis VR, Viswanathan U, Kulp J, Du Y, Guo JT, Chang J. Discovery and Mechanistic Study of a Novel Human-Stimulator-of-Interferon-Genes Agonist. ACS Infect Dis 2019; 5:1139-1149. [PMID: 31060350 DOI: 10.1021/acsinfecdis.9b00010] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Stimulator of interferon genes (STING) is an integral ER-membrane protein that can be activated by 2'3'-cGAMP synthesized by cyclic guanosine monophosphate-adenosine monophosphate synthase (cGAS) upon binding of double-stranded DNA. It activates interferon (IFN) and inflammatory cytokine responses to defend against infection by microorganisms. Pharmacologic activation of STING has been demonstrated to induce an antiviral state and boost antitumor immunity. We previously reported a cell-based high-throughput-screening assay that allowed for identification of small-molecule cGAS-STING-pathway agonists. We report herein a compound, 6-bromo-N-(naphthalen-1-yl)benzo[d][1,3]dioxole-5-carboxamide (BNBC), that induces a proinflammatory cytokine response in a human-STING-dependent manner. Specifically, we showed that BNBC induced type I and III IFN dominant cytokine responses in primary human fibroblasts and peripheral-blood mononuclear cells (PBMCs). BNBC also induced cytokine response in PBMC-derived myeloid dendritic cells and promoted their maturation, suggesting that STING-agonist treatment could potentially regulate the activation of CD4+ and CD8+ T lymphocytes. As anticipated, treatment of primary human fibroblast cells with BNBC induced an antiviral state that inhibited the infection of several kinds of flaviviruses. Taken together, our results indicate that BNBC is a human-STING agonist that not only induces innate antiviral immunity against a broad spectrum of viruses but may also stimulate the activation of adaptive immune responses, which is important for the treatment of chronic viral infections and tumors.
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Affiliation(s)
- Xiaohui Zhang
- Department of Experimental Medicine, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
- Artificial Liver Center, Beijing Youan Hospital, Capital Medical University, 8 Xitoutiao, Fengtai, Beijing 100069, China
| | - Bowei Liu
- Department of Experimental Medicine, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
- Department of Gastroenterology, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, 7 Weiwu Road, Jinshui, Zhengzhou, Henan 450016, China
| | - Liudi Tang
- Microbiology and Immunology Graduate Program, Drexel University College of Medicine, 2900 West Queen Lane, Philadelphia, Pennsylvania 19129, United States
| | - Qing Su
- Department of Experimental Medicine, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - Nicky Hwang
- Department of Experimental Medicine, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - Mohit Sehgal
- Department of Experimental Medicine, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - Junjun Cheng
- Department of Experimental Medicine, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - Julia Ma
- Department of Experimental Medicine, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - Xuexiang Zhang
- Department of Experimental Medicine, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - Yinfei Tan
- Genomics Facilities, Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, Pennsylvania 19111, United States
| | - Yan Zhou
- Bioinformatics and Biostatistics Facility, Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, Pennsylvania 19111, United States
| | - Zhongping Duan
- Artificial Liver Center, Beijing Youan Hospital, Capital Medical University, 8 Xitoutiao, Fengtai, Beijing 100069, China
| | - Victor R. DeFilippis
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, 505 Northwest 185th Avenue, Beaverton, Oregon 97006, United States
| | - Usha Viswanathan
- Department of Experimental Medicine, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - John Kulp
- Department of Experimental Medicine, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - Yanming Du
- Department of Experimental Medicine, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - Ju-Tao Guo
- Department of Experimental Medicine, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
| | - Jinhong Chang
- Department of Experimental Medicine, Baruch S. Blumberg Institute, 3805 Old Easton Road, Doylestown, Pennsylvania 18902, United States
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Influenza "Trains" the Host for Enhanced Susceptibility to Secondary Bacterial Infection. mBio 2019; 10:mBio.00810-19. [PMID: 31064834 PMCID: PMC6509193 DOI: 10.1128/mbio.00810-19] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Enhanced susceptibility to 2° bacterial infections following infection with influenza virus is a global health concern that accounts for many hospitalizations and deaths, particularly during pandemics. The complexity of the impaired host immune response during 2° bacterial infection has been widely studied. Both type I IFN and neutrophil dysfunction through decreased chemokine production have been implicated as mechanisms underlying enhanced susceptibility to 2° bacterial infections. Our findings support the conclusion that selective suppression of CXCL1/CXCL2 represents an IFN-β-mediated “training” of the macrophage transcriptional response to TLR2 agonists and that blocking of TLR4 therapeutically with Eritoran after influenza virus infection reverses this suppression by blunting influenza-induced IFN-β. We previously reported that the Toll-like receptor 4 (TLR4) antagonist Eritoran blocks acute lung injury (ALI) therapeutically in mouse and cotton rat models of influenza. However, secondary (2°) bacterial infection following influenza virus infection is associated with excess morbidity and mortality. Wild-type (WT) mice infected with mouse-adapted influenza A/Puerto Rico/8/34 virus (PR8) and, 7 days later, with Streptococcus pneumoniae serotype 3 (Sp3) exhibited significantly enhanced lung pathology and lethality that was reversed by Eritoran therapy after PR8 infection but before Sp3 infection. Cotton rats infected with nonadapted pH1N1 influenza virus and then superinfected with methicillin-resistant Staphylococcus aureus also exhibited increased lung pathology and serum high-mobility-group box 1 (HMGB1) levels, both of which were blunted by Eritoran therapy. In mice, PR8 infection suppressed Sp3-induced CXCL1 and CXCL2 mRNA, reducing neutrophil infiltration and increasing the bacterial burden, all of which were reversed by Eritoran treatment. While beta interferon (IFN-β)-deficient (IFN-β−/−) mice are highly susceptible to PR8, they exhibited delayed death upon Sp3 superinfection, indicating that while IFN-β was protective against influenza, it negatively impacted the host response to Sp3. IFN-β-treated WT macrophages selectively suppressed Sp3-induced CXCL1/CXCL2 transcriptionally, as evidenced by reduced recruitment of RNA polymerase II to the CXCL1 promoter. Thus, influenza establishes a “trained” state of immunosuppression toward 2° bacterial infection, in part through the potent induction of IFN-β and its downstream transcriptional regulation of chemokines, an effect reversed by Eritoran.
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15
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Fernandes C, Carraro ML, Ribeiro J, Araújo J, Tiritan ME, Pinto MMM. Synthetic Chiral Derivatives of Xanthones: Biological Activities and Enantioselectivity Studies. Molecules 2019; 24:E791. [PMID: 30813236 PMCID: PMC6412826 DOI: 10.3390/molecules24040791] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/17/2019] [Accepted: 02/19/2019] [Indexed: 12/12/2022] Open
Abstract
Many naturally occurring xanthones are chiral and present a wide range of biological and pharmacological activities. Some of them have been exhaustively studied and subsequently, obtained by synthesis. In order to obtain libraries of compounds for structure activity relationship (SAR) studies as well as to improve the biological activity, new bioactive analogues and derivatives inspired in natural prototypes were synthetized. Bioactive natural xanthones compromise a large structural multiplicity of compounds, including a diversity of chiral derivatives. Thus, recently an exponential interest in synthetic chiral derivatives of xanthones (CDXs) has been witnessed. The synthetic methodologies can afford structures that otherwise could not be reached within the natural products for biological activity and SAR studies. Another reason that justifies this trend is that both enantiomers can be obtained by using appropriate synthetic pathways, allowing the possibility to perform enantioselectivity studies. In this work, a literature review of synthetic CDXs is presented. The structures, the approaches used for their synthesis and the biological activities are described, emphasizing the enantioselectivity studies.
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Affiliation(s)
- Carla Fernandes
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal.
| | - Maria Letícia Carraro
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - João Ribeiro
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Joana Araújo
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Maria Elizabeth Tiritan
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal.
- Cooperativa de Ensino Superior, Politécnico e Universitário (CESPU), Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), Rua Central de Gandra, 1317, 4585-116 Gandra PRD, Portugal.
| | - Madalena M M Pinto
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal.
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16
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The STING agonist 5,6-dimethylxanthenone-4-acetic acid (DMXAA) stimulates an antiviral state and protects mice against herpes simplex virus-induced neurological disease. Virology 2019; 529:23-28. [PMID: 30648635 DOI: 10.1016/j.virol.2019.01.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 01/04/2019] [Accepted: 01/04/2019] [Indexed: 12/15/2022]
Abstract
Herpes simplex virus (HSV)- 1 is the most common cause of sporadic viral encephalitis and accounts for 5-10% of cases worldwide. A key factor in host control of viral infection is the initiation of the interferon (IFN) response, mediated in part by the stimulator of interferon genes (STING) pathway. In these studies, we examined the ability of 5,6-dimethylxanthenone-4-acetic acid (DMXAA), a STING agonist, to protect against HSV-1 infection. DMXAA reduced viral replication through increased production of type I IFN in vitro. Furthermore, administration of DMXAA to HSV-1 infected mice resulted in a reduction of viral burden in the peripheral and central nervous systems. This reduced viral burden also correlated with increased survival of DMXAA-treated infected mice. These results therefore demonstrate the potential of STING agonists for immunotherapy against HSV-1.
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Ribeiro J, Veloso C, Fernandes C, Tiritan ME, Pinto MMM. Carboxyxanthones: Bioactive Agents and Molecular Scaffold for Synthesis of Analogues and Derivatives. Molecules 2019; 24:E180. [PMID: 30621303 PMCID: PMC6337274 DOI: 10.3390/molecules24010180] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 12/31/2018] [Accepted: 01/02/2019] [Indexed: 11/16/2022] Open
Abstract
Xanthones represent a structurally diverse group of compounds with a broad range of biological and pharmacological activities, depending on the nature and position of various substituents in the dibenzo-γ-pyrone scaffold. Among the large number of natural and synthetic xanthone derivatives, carboxyxanthones are very interesting bioactive compounds as well as important chemical substrates for molecular modifications to obtain new derivatives. A remarkable example is 5,6-dimethylxanthone-4-acetic acid (DMXAA), a simple carboxyxanthone derivative, originally developed as an anti-tumor agent and the first of its class to enter phase III clinical trials. From DMXAA new bioactive analogues and derivatives were also described. In this review, a literature survey covering the report on carboxyxanthone derivatives is presented, emphasizing their biological activities as well as their application as suitable building blocks to obtain new bioactive derivatives. The data assembled in this review intends to highlight the therapeutic potential of carboxyxanthone derivatives and guide the design for new bioactive xanthone derivatives.
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Affiliation(s)
- João Ribeiro
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Cláudia Veloso
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Carla Fernandes
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal.
| | - Maria Elizabeth Tiritan
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal.
- Cooperativa de Ensino Superior, Politécnico e Universitário (CESPU), Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), Rua Central de Gandra, 1317, 4585-116 Gandra PRD, Portugal.
| | - Madalena M M Pinto
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal.
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Perkins DJ, Richard K, Hansen AM, Lai W, Nallar S, Koller B, Vogel SN. Autocrine-paracrine prostaglandin E 2 signaling restricts TLR4 internalization and TRIF signaling. Nat Immunol 2018; 19:1309-1318. [PMID: 30397349 PMCID: PMC6240378 DOI: 10.1038/s41590-018-0243-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 09/14/2018] [Indexed: 12/12/2022]
Abstract
The unique cell biology of Toll-like receptor 4 (TLR4) allows it to initiate two signal transduction cascades: a Mal (TIRAP)–MyD88-dependent signal from the cell surface that regulates proinflammatory cytokines and a TRAM–TRIF-dependent signal from endosomes that drives type I interferon production. Negative feedback circuits to limit TLR4 signals from both locations are necessary to balance the inflammatory response. We describe a negative feedback loop driven by autocrine-paracrine prostaglandin E2 (PGE2), and the PGE2 receptor, EP4, which restricted TRIF-dependent signals and IFN-β induction through regulation of TLR4 trafficking. Inhibition of PGE2 production or EP4 antagonism increased the rate of TLR4 endosomal translocation, and amplified TRIF-dependent IRF3 and caspase 8 activation. This PGE2-driven mechanism restricted TLR4-TRIF signaling in vitro upon infection of macrophages by Gram-negative pathogens Escherichia coli and Citrobacter rodentium and protected mice against Salmonella enteritidis serovar Typhimurium (ST)-induced mortality. Thus, PGE2 restricts TLR4-TRIF signaling specifically in response to lipopolysaccharide.
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Affiliation(s)
- Darren J Perkins
- Department of Microbiology and Immunology, University of Maryland, Baltimore, School of Medicine, Baltimore, MD, USA.
| | - Katharina Richard
- Department of Microbiology and Immunology, University of Maryland, Baltimore, School of Medicine, Baltimore, MD, USA
| | - Anne-Marie Hansen
- Department of Microbiology and Immunology, University of Maryland, Baltimore, School of Medicine, Baltimore, MD, USA
| | - Wendy Lai
- Department of Microbiology and Immunology, University of Maryland, Baltimore, School of Medicine, Baltimore, MD, USA
| | - Shreeram Nallar
- Department of Microbiology and Immunology, University of Maryland, Baltimore, School of Medicine, Baltimore, MD, USA
| | - Beverly Koller
- Department of Genetics, UNC School of Medicine, Chapel Hill, NC, USA
| | - Stefanie N Vogel
- Department of Microbiology and Immunology, University of Maryland, Baltimore, School of Medicine, Baltimore, MD, USA.
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19
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Hiradate Y, Sasaki E, Momose H, Asanuma H, Furuhata K, Takai M, Aoshi T, Yamada H, Ishii KJ, Tanemura K, Mizukami T, Hamaguchi I. Development of screening method for intranasal influenza vaccine and adjuvant safety in preclinical study. Biologicals 2018; 55:43-52. [DOI: 10.1016/j.biologicals.2018.07.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 05/29/2018] [Accepted: 07/05/2018] [Indexed: 11/26/2022] Open
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20
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Zhao Q, Wei Y, Pandol SJ, Li L, Habtezion A. STING Signaling Promotes Inflammation in Experimental Acute Pancreatitis. Gastroenterology 2018; 154:1822-1835.e2. [PMID: 29425920 PMCID: PMC6112120 DOI: 10.1053/j.gastro.2018.01.065] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 01/13/2018] [Accepted: 01/29/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND & AIMS Acute pancreatitis (AP) is characterized by severe inflammation and acinar cell death. Transmembrane protein 173 (TMEM173 or STING) is a DNA sensor adaptor protein on immune cells that recognizes cytosolic nucleic acids and transmits signals that activate production of interferons and the innate immune response. We investigated whether leukocyte STING signaling mediates inflammation in mice with AP. METHODS We induced AP in C57BL/6J mice (control) and C57BL/6J-Tmem173gt/J mice (STING-knockout mice) by injection of cerulein or placement on choline-deficient DL-ethionine supplemented diet. In some mice, STING signaling was induced by administration of a pharmacologic agonist. AP was also induced in C57BL/6J mice with bone marrow transplants from control or STING-knockout mice and in mice with disruption of the cyclic GMP-AMP synthase (Cgas) gene. Pancreata were collected, analyzed by histology, and acini were isolated and analyzed by flow cytometry, quantitative polymerase chain reaction, immunoblots, and enzyme-linked immunosorbent assay. Bone-marrow-derived macrophages were collected from mice and tested for their ability to detect DNA from dying acinar cells in the presence and absence of deoxyribonuclease (DNaseI). RESULTS STING signaling was activated in pancreata from mice with AP but not mice without AP. STING-knockout mice developed less severe AP (less edema, inflammation, and markers of pancreatic injury) than control mice, whereas mice given a STING agonist developed more severe AP than controls. In immune cells collected from pancreata, STING was expressed predominantly in macrophages. Levels of cGAS were increased in mice with vs without AP, and cGAS-knockout mice had decreased edema, inflammation, and other markers of pancreatic injury upon induction of AP than control mice. Wild-type mice given bone marrow transplants from STING-knockout mice had less pancreatic injury and lower serum levels of lipase and pancreatic trypsin activity following induction of AP than mice given wild-type bone marrow. DNA from dying acinar cells activated STING signaling in macrophages, which was inhibited by addition of DNaseI. CONCLUSIONS In mice with AP, STING senses acinar cell death (by detecting DNA from dying acinar cells) and activates a signaling pathway that promotes inflammation. Macrophages express STING and activate pancreatic inflammation in AP.
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Affiliation(s)
- Qinglan Zhao
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California
| | - Yi Wei
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California
| | - Stephen J. Pandol
- Cedars-Sinai Medical Center and Department of Veterans Affairs, Los Angeles, California
| | - Lingyin Li
- Biochemistry Department and the ChEM-H institute, Stanford University, Stanford, California
| | - Aida Habtezion
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California.
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21
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Gall B, Pryke K, Abraham J, Mizuno N, Botto S, Sali TM, Broeckel R, Haese N, Nilsen A, Placzek A, Morrison T, Heise M, Streblow D, DeFilippis V. Emerging Alphaviruses Are Sensitive to Cellular States Induced by a Novel Small-Molecule Agonist of the STING Pathway. J Virol 2018; 92:e01913-17. [PMID: 29263267 PMCID: PMC5827377 DOI: 10.1128/jvi.01913-17] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 12/12/2017] [Indexed: 01/23/2023] Open
Abstract
The type I interferon (IFN) system represents an essential innate immune response that renders cells resistant to virus growth via the molecular actions of IFN-induced effector proteins. IFN-mediated cellular states inhibit growth of numerous and diverse virus types, including those of known pathogenicity as well as potentially emerging agents. As such, targeted pharmacologic activation of the IFN response may represent a novel therapeutic strategy to prevent infection or spread of clinically impactful viruses. In light of this, we employed a high-throughput screen to identify small molecules capable of permeating the cell and of activating IFN-dependent signaling processes. Here we report the identification and characterization of N-(methylcarbamoyl)-2-{[5-(4-methylphenyl)-1,3,4-oxadiazol-2-yl]sulfanyl}-2-phenylacetamide (referred to as C11), a novel compound capable of inducing IFN secretion from human cells. Using reverse genetics-based loss-of-function assays, we show that C11 activates the type I IFN response in a manner that requires the adaptor protein STING but not the alternative adaptors MAVS and TRIF. Importantly, treatment of cells with C11 generated a cellular state that potently blocked replication of multiple emerging alphavirus types, including chikungunya, Ross River, Venezuelan equine encephalitis, Mayaro, and O'nyong-nyong viruses. The antiviral effects of C11 were subsequently abrogated in cells lacking STING or the type I IFN receptor, indicating that they are mediated, at least predominantly, by way of STING-mediated IFN secretion and subsequent autocrine/paracrine signaling. This work also allowed characterization of differential antiviral roles of innate immune signaling adaptors and IFN-mediated responses and identified MAVS as being crucial to cellular resistance to alphavirus infection.IMPORTANCE Due to the increase in emerging arthropod-borne viruses, such as chikungunya virus, that lack FDA-approved therapeutics and vaccines, it is important to better understand the signaling pathways that lead to clearance of virus. Here we show that C11 treatment makes human cells refractory to replication of a number of these viruses, which supports its value in increasing our understanding of the immune response and viral pathogenesis required to establish host infection. We also show that C11 depends on signaling through STING to produce antiviral type I interferon, which further supports its potential as a therapeutic drug or research tool.
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Affiliation(s)
- Bryan Gall
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, USA
| | - Kara Pryke
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, USA
| | - Jinu Abraham
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, USA
| | - Nobuyo Mizuno
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, USA
| | - Sara Botto
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, USA
| | - Tina M Sali
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, USA
| | - Rebecca Broeckel
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, USA
| | - Nicole Haese
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, USA
| | - Aaron Nilsen
- Veterans Affairs Medical Center, Portland, Oregon, USA
| | | | - Thomas Morrison
- Department of Immunology and Microbiology, School of Medicine, University of Colorado, Aurora, Colorado, USA
| | - Mark Heise
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Daniel Streblow
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, USA
| | - Victor DeFilippis
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, USA
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22
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Papinska J, Bagavant H, Gmyrek GB, Sroka M, Tummala S, Fitzgerald KA, Deshmukh US. Activation of Stimulator of Interferon Genes (STING) and Sjögren Syndrome. J Dent Res 2018; 97:893-900. [PMID: 29505322 DOI: 10.1177/0022034518760855] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Sjögren syndrome (SS), a chronic autoimmune disorder causing dry mouth, adversely affects the overall oral health in patients. Activation of innate immune responses and excessive production of type I interferons (IFNs) play a critical role in the pathogenesis of this disorder. Recognition of nucleic acids by cytosolic nucleic acid sensors is a major trigger for the induction of type I IFNs. Upon activation, cytosolic DNA sensors can interact with the stimulator of interferon genes (STING) protein, and activation of STING causes increased expression of type I IFNs. The role of STING activation in SS is not known. In this study, to investigate whether the cytosolic DNA sensing pathway influences SS development, female C57BL/6 mice were injected with a STING agonist, dimethylxanthenone-4-acetic acid (DMXAA). Salivary glands (SGs) were studied for gene expression and inflammatory cell infiltration. SG function was evaluated by measuring pilocarpine-induced salivation. Sera were analyzed for cytokines and autoantibodies. Primary SG cells were used to study the expression and activation of STING. Our data show that systemic DMXAA treatment rapidly induced the expression of Ifnb1, Il6, and Tnfa in the SGs, and these cytokines were also elevated in circulation. In contrast, increased Ifng gene expression was dominantly detected in the SGs. The type I innate lymphoid cells present within the SGs were the major source of IFN-γ, and their numbers increased significantly within 3 d of treatment. STING expression in SGs was mainly observed in ductal and interstitial cells. In primary SG cells, DMXAA activated STING and induced IFN-β production. The DMXAA-treated mice developed autoantibodies, sialoadenitis, and glandular hypofunction. Our study demonstrates that activation of the STING pathway holds the potential to initiate SS. Thus, apart from viral infections, conditions that cause cellular perturbations and accumulation of host DNA within the cytosol should also be considered as possible triggers for SS.
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Affiliation(s)
- J Papinska
- 1 Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - H Bagavant
- 1 Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - G B Gmyrek
- 1 Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - M Sroka
- 1 Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - S Tummala
- 2 Comparative Medicine, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - K A Fitzgerald
- 3 Division of Infectious Disease and Immunology, University of Massachusetts Medical School, Worcester, MA, USA
| | - U S Deshmukh
- 1 Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
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23
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Lee K, Kim DE, Jang KS, Kim SJ, Cho S, Kim C. Gemcitabine, a broad-spectrum antiviral drug, suppresses enterovirus infections through innate immunity induced by the inhibition of pyrimidine biosynthesis and nucleotide depletion. Oncotarget 2017; 8:115315-115325. [PMID: 29383162 PMCID: PMC5777774 DOI: 10.18632/oncotarget.23258] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 12/05/2017] [Indexed: 11/25/2022] Open
Abstract
Gemcitabine, an anti-cancer chemotherapy drug, has additionally shown the antiviral activity against a broad range of viruses and we also have previously reported its synergistic antiviral activity with ribavirin against enteroviruses. As a cytidine analog, gemcitabine has been reported to have an inhibitory activity on the pyrimidine biosynthesis. In addition, a few inhibitors of the pyrimidine biosynthesis have shown to induce the innate immunity in a yet-to-be-determined manner and inhibit the virus infection. Thus, we also investigated whether the anti-enteroviral activity of gemcitabine is mediated by innate immunity, induction of which is related with the inhibition of the pyrimidine synthesis. In this study, we found that the addition of exogenous cytidine, uridine and uridine mono-phosphate (UMP) effectively reversed the antiviral activity of gemcitabine in enterovirus-infected as well as enteroviral replicon-harboring cells, demonstrating gemcitabine's targeting of the salvage pathway. Moreover, the expression of several interferon (IFN)-stimulated genes (ISGs) was significantly induced by the treatment of gemcitabine, which was also suppressed by the co-treatment with cytidine. These results suggest that the antiviral activity of gemcitabine involves ISGs induced by the inhibition of the pyrimidine biosynthesis.
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Affiliation(s)
- Kyungjin Lee
- Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, South Korea
| | - Dong-Eun Kim
- Anticancer Agent Research Center, Korea Research Institute of Bioscience & Biotechnology, Cheongju, South Korea
| | - Kyoung-Soon Jang
- Biomedical Omics Group, Korea Basic Science Institute, Cheongju, South Korea
| | - Seong-Jun Kim
- Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, South Korea
| | - Sungchan Cho
- Anticancer Agent Research Center, Korea Research Institute of Bioscience & Biotechnology, Cheongju, South Korea.,Department of Biomolecular Science, KRIBB School of Bioscience, Korea University of Science and Technology, Daejeon, South Korea
| | - Chonsaeng Kim
- Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, South Korea.,Department of Medicinal and Pharmaceutical Chemistry, Korea University of Science and Technology, Daejeon, South Korea
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24
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Liu B, Tang L, Zhang X, Ma J, Sehgal M, Cheng J, Zhang X, Zhou Y, Du Y, Kulp J, Guo JT, Chang J. A cell-based high throughput screening assay for the discovery of cGAS-STING pathway agonists. Antiviral Res 2017; 147:37-46. [PMID: 28982551 DOI: 10.1016/j.antiviral.2017.10.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 09/28/2017] [Accepted: 10/01/2017] [Indexed: 02/01/2023]
Abstract
Stimulator of interferon genes (STING) is an endoplasmic reticulum transmembrane protein that serves as a molecular hub for activation of interferon and inflammatory cytokine response by multiple cellular DNA sensors. Not surprisingly, STING has been demonstrated to play an important role in host defense against microorganisms and pharmacologic activation of STING is considered as an attractive strategy to treat viral diseases and boost antitumor immunity. In light of this we established a HepAD38-derived reporter cell line that expresses firefly luciferase in response to the activation of cyclic GMP-AMP synthase (cGAS)-STING pathway for high throughput screening (HTS) of small molecular human STING agonists. This cell-based reporter assay required only 4 h treatment with a reference STING agonist to induce a robust luciferase signal and was demonstrated to have an excellent performance in HTS format. By screening 16,000 compounds, a dispiro diketopiperzine (DSDP) compound was identified to induce cytokine response in a manner dependent on the expression of functional human STING, but not mouse STING. Moreover, we showed that DSDP induced an interferon-dominant cytokine response in human skin fibroblasts and peripheral blood mononuclear cells, which in turn potently suppressed the replication of yellow fever virus, dengue virus and Zika virus. We have thus established a robust cell-based assay system suitable for rapid discovery and mechanistic analyses of cGAS-STING pathway agonists. Identification of DSDP as a human STING agonist enriches the pipelines of STING-targeting drug development for treatment of viral infections and cancers.
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Affiliation(s)
- Bowei Liu
- Baruch S. Blumberg Institute, Hepatitis B Foundation, Doylestown, PA, USA; Department of Gastroenterology, Henan Provincial People's Hospital, Zhengzhou University, Zhengzhou, Henan, China
| | - Liudi Tang
- Microbiology and Immunology Graduate Program, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Xiaohui Zhang
- Baruch S. Blumberg Institute, Hepatitis B Foundation, Doylestown, PA, USA; Artificial Liver Center, Beijing You'an Hospital, Capital Medical University, Beijing, China
| | - Julia Ma
- Baruch S. Blumberg Institute, Hepatitis B Foundation, Doylestown, PA, USA
| | - Mohit Sehgal
- Baruch S. Blumberg Institute, Hepatitis B Foundation, Doylestown, PA, USA
| | - Junjun Cheng
- Baruch S. Blumberg Institute, Hepatitis B Foundation, Doylestown, PA, USA
| | - Xuexiang Zhang
- Baruch S. Blumberg Institute, Hepatitis B Foundation, Doylestown, PA, USA
| | - Yan Zhou
- Biostatistics and Bioinformatics Facility, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - Yanming Du
- Baruch S. Blumberg Institute, Hepatitis B Foundation, Doylestown, PA, USA
| | - John Kulp
- Baruch S. Blumberg Institute, Hepatitis B Foundation, Doylestown, PA, USA
| | - Ju-Tao Guo
- Baruch S. Blumberg Institute, Hepatitis B Foundation, Doylestown, PA, USA.
| | - Jinhong Chang
- Baruch S. Blumberg Institute, Hepatitis B Foundation, Doylestown, PA, USA.
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25
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Weiss JM, Guérin MV, Regnier F, Renault G, Galy-Fauroux I, Vimeux L, Feuillet V, Peranzoni E, Thoreau M, Trautmann A, Bercovici N. The STING agonist DMXAA triggers a cooperation between T lymphocytes and myeloid cells that leads to tumor regression. Oncoimmunology 2017; 6:e1346765. [PMID: 29123960 PMCID: PMC5665074 DOI: 10.1080/2162402x.2017.1346765] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/20/2017] [Accepted: 06/21/2017] [Indexed: 11/21/2022] Open
Abstract
Regressing tumors are usually associated with a large immune infiltrate, but the molecular and cellular interactions that govern a successful anti-tumor immunity remain elusive. Here, we have triggered type I Interferon (IFN) signaling in a breast tumor model (MMTV-PyMT) using 5,6-dimethylxanthenone-4-acetic acid (DMXAA), a ligand of the STimulator of Interferon Genes, STING. The 2 main events rapidly triggered by DMXAA in transplanted PyMT tumors are 1) the disruption of the tumor vasculature, followed by hypoxia and cell death; 2) the release of chemokines. Both events converged to trigger the recruitment of 2 waves of immune cells: a swift, massive recruitment of neutrophils, followed by a delayed rise in monocytes and CD8 T cells in the tumor mass. Depletion experiments in vivo revealed that myeloid cell subsets and T cells need to cooperate to achieve full-blown recruitment and activation at the tumor site and to induce effective secondary cell death leading to tumor regression (Illustration 1). Altogether, our study highlights that the tumor regression induced by the STING agonist DMXAA results from a cascade of events, with an initial vessel destruction followed by several infiltration waves of immune cells which have to cooperate to amplify and sustain the initial effect. We thus provide the first global and detailed kinetic analysis of the anti-tumoral effect of DMXAA and of its different articulated steps.
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Affiliation(s)
- Julia M Weiss
- Inserm, U1016, Institut Cochin, Paris, France.,Cnrs, UMR8104, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, France
| | - Marion V Guérin
- Inserm, U1016, Institut Cochin, Paris, France.,Cnrs, UMR8104, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, France
| | - Fabienne Regnier
- Inserm, U1016, Institut Cochin, Paris, France.,Cnrs, UMR8104, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, France
| | - Gilles Renault
- Inserm, U1016, Institut Cochin, Paris, France.,Cnrs, UMR8104, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, France
| | | | - Lene Vimeux
- Inserm, U1016, Institut Cochin, Paris, France.,Cnrs, UMR8104, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, France
| | - Vincent Feuillet
- Inserm, U1016, Institut Cochin, Paris, France.,Cnrs, UMR8104, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, France
| | - Elisa Peranzoni
- Inserm, U1016, Institut Cochin, Paris, France.,Cnrs, UMR8104, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, France
| | - Maxime Thoreau
- Inserm, U1016, Institut Cochin, Paris, France.,Cnrs, UMR8104, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, France
| | - Alain Trautmann
- Inserm, U1016, Institut Cochin, Paris, France.,Cnrs, UMR8104, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, France
| | - Nadège Bercovici
- Inserm, U1016, Institut Cochin, Paris, France.,Cnrs, UMR8104, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, France
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26
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Prantner D, Perkins DJ, Vogel SN. AMP-activated Kinase (AMPK) Promotes Innate Immunity and Antiviral Defense through Modulation of Stimulator of Interferon Genes (STING) Signaling. J Biol Chem 2016; 292:292-304. [PMID: 27879319 DOI: 10.1074/jbc.m116.763268] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 11/15/2016] [Indexed: 11/06/2022] Open
Abstract
The host protein Stimulator of Interferon Genes (STING) has been shown to be essential for recognition of both viral and intracellular bacterial pathogens, but its regulation remains unclear. Previously, we reported that mitochondrial membrane potential regulates STING-dependent IFN-β induction independently of ATP synthesis. Because mitochondrial membrane potential controls calcium homeostasis, and AMP-activated protein kinase (AMPK) is regulated, in part, by intracellular calcium, we postulated that AMPK participates in STING activation; however, its role has yet to be been defined. Addition of an intracellular calcium chelator or an AMPK inhibitor to either mouse macrophages or mouse embryonic fibroblasts (MEFs) suppressed IFN-β and TNF-α induction following stimulation with the STING-dependent ligand 5,6-dimethyl xanthnone-4-acetic acid (DMXAA). These pharmacological findings were corroborated by showing that MEFs lacking AMPK activity also failed to up-regulate IFN-β and TNF-α after treatment with DMXAA or the natural STING ligand cyclic GMP-AMP (cGAMP). As a result, AMPK-deficient MEFs exhibit impaired control of vesicular stomatitis virus (VSV), a virus sensed by STING that can cause an influenza-like illness in humans. This impairment could be overcome by pretreatment of AMPK-deficient MEFs with type I IFN, illustrating that de novo production of IFN-β in response to VSV plays a key role in antiviral defense during infection. Loss of AMPK also led to dephosphorylation at Ser-555 of the known STING regulator, UNC-51-like kinase 1 (ULK1). However, ULK1-deficient cells responded normally to DMXAA, indicating that AMPK promotes STING-dependent signaling independent of ULK1 in mouse cells.
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Affiliation(s)
- Daniel Prantner
- From the Department of Microbiology and Immunology, University of Maryland, School of Medicine, Baltimore, Maryland 21201
| | - Darren J Perkins
- From the Department of Microbiology and Immunology, University of Maryland, School of Medicine, Baltimore, Maryland 21201
| | - Stefanie N Vogel
- From the Department of Microbiology and Immunology, University of Maryland, School of Medicine, Baltimore, Maryland 21201
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27
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Shirey KA, Lai W, Patel MC, Pletneva LM, Pang C, Kurt-Jones E, Lipsky M, Roger T, Calandra T, Tracey K, Al-Abed Y, Bowie AG, Fasano A, Dinarello C, Gusovsky F, Blanco JC, Vogel SN. Novel strategies for targeting innate immune responses to influenza. Mucosal Immunol 2016; 9:1173-82. [PMID: 26813341 PMCID: PMC5125448 DOI: 10.1038/mi.2015.141] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 11/25/2015] [Indexed: 02/04/2023]
Abstract
We previously reported that TLR4(-/-) mice are refractory to mouse-adapted A/PR/8/34 (PR8) influenza-induced lethality and that therapeutic administration of the TLR4 antagonist Eritoran blocked PR8-induced lethality and acute lung injury (ALI) when given starting 2 days post infection. Herein we extend these findings: anti-TLR4- or -TLR2-specific IgG therapy also conferred significant protection of wild-type (WT) mice from lethal PR8 infection. If treatment is initiated 3 h before PR8 infection and continued daily for 4 days, Eritoran failed to protect WT and TLR4(-/-) mice, implying that Eritoran must block a virus-induced, non-TLR4 signal that is required for protection. Mechanistically, we determined that (i) Eritoran blocks high-mobility group B1 (HMGB1)-mediated, TLR4-dependent signaling in vitro and circulating HMGB1 in vivo, and an HMGB1 inhibitor protects against PR8; (ii) Eritoran inhibits pulmonary lung edema associated with ALI; (iii) interleukin (IL)-1β contributes significantly to PR8-induced lethality, as evidenced by partial protection by IL-1 receptor antagonist (IL-1Ra) therapy. Synergistic protection against PR8-induced lethality was achieved when Eritoran and the antiviral drug oseltamivir were administered starting 4 days post infection. Eritoran treatment does not prevent development of an adaptive immune response to subsequent PR8 challenge. Overall, our data support the potential of a host-targeted therapeutic approach to influenza infection.
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Affiliation(s)
- Kari Ann Shirey
- Department of Microbiology and Immunology, University of Maryland, Baltimore, Baltimore, MD, USA
| | - Wendy Lai
- Department of Microbiology and Immunology, University of Maryland, Baltimore, Baltimore, MD, USA
| | - Mira C. Patel
- Department of Microbiology and Immunology, University of Maryland, Baltimore, Baltimore, MD, USA,Sigmovir Biosystems, Inc., Rockville, MD, USA
| | | | - Catherine Pang
- Dept. of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Evelyn Kurt-Jones
- Dept. of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Michael Lipsky
- Pathology Research, University of Maryland, Baltimore, Baltimore, MD, USA
| | - Thierry Roger
- Infectious Diseases Service, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Thierry Calandra
- Infectious Diseases Service, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Kevin Tracey
- Dept. Biomedical Science, The Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - Yousef Al-Abed
- Dept. of Medicinal Chemistry, The Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - Andrew G. Bowie
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Alessio Fasano
- Mucosal Immunology and Biology Research Center, MGH for Children, Boston, MA, USA
| | - Charles Dinarello
- Division of Infectious diseases, Univ. of Colorado Denver, Aurora, CO, USA
| | | | | | - Stefanie N. Vogel
- Department of Microbiology and Immunology, University of Maryland, Baltimore, Baltimore, MD, USA,Corresponding author: Stefanie N. Vogel, Ph.D., Dept. of Microbiology and Immunology, University of Maryland, School of Medicine, 685 W. Baltimore St., Rm. 380, Baltimore, MD 21201 USA
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28
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Sanchez David RY, Combredet C, Sismeiro O, Dillies MA, Jagla B, Coppée JY, Mura M, Guerbois Galla M, Despres P, Tangy F, Komarova AV. Comparative analysis of viral RNA signatures on different RIG-I-like receptors. eLife 2016; 5:e11275. [PMID: 27011352 PMCID: PMC4841775 DOI: 10.7554/elife.11275] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 03/24/2016] [Indexed: 12/17/2022] Open
Abstract
The RIG-I-like receptors (RLRs) play a major role in sensing RNA virus infection to initiate and modulate antiviral immunity. They interact with particular viral RNAs, most of them being still unknown. To decipher the viral RNA signature on RLRs during viral infection, we tagged RLRs (RIG-I, MDA5, LGP2) and applied tagged protein affinity purification followed by next-generation sequencing (NGS) of associated RNA molecules. Two viruses with negative- and positive-sense RNA genome were used: measles (MV) and chikungunya (CHIKV). NGS analysis revealed that distinct regions of MV genome were specifically recognized by distinct RLRs: RIG-I recognized defective interfering genomes, whereas MDA5 and LGP2 specifically bound MV nucleoprotein-coding region. During CHIKV infection, RIG-I associated specifically to the 3' untranslated region of viral genome. This study provides the first comparative view of the viral RNA ligands for RIG-I, MDA5 and LGP2 in the presence of infection.
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Affiliation(s)
- Raul Y Sanchez David
- Unité de Génomique Virale et Vaccination, Institut Pasteur, CNRS UMR-3569, Paris, France
- Ecole doctorale, Biochimie, Biothérapies, Biologie Moléculaire et Infectiologie (B3MI), Université Paris Diderot - Paris 7, Paris, France
| | - Chantal Combredet
- Unité de Génomique Virale et Vaccination, Institut Pasteur, CNRS UMR-3569, Paris, France
| | - Odile Sismeiro
- Transcriptome and Epigenome, BioMics Pole, Center for Innovation and Technological Research, Institut Pasteur, Paris, France
| | - Marie-Agnès Dillies
- Transcriptome and Epigenome, BioMics Pole, Center for Innovation and Technological Research, Institut Pasteur, Paris, France
| | - Bernd Jagla
- Transcriptome and Epigenome, BioMics Pole, Center for Innovation and Technological Research, Institut Pasteur, Paris, France
| | - Jean-Yves Coppée
- Transcriptome and Epigenome, BioMics Pole, Center for Innovation and Technological Research, Institut Pasteur, Paris, France
| | - Marie Mura
- Unité de Génomique Virale et Vaccination, Institut Pasteur, CNRS UMR-3569, Paris, France
- Unité Interactions Hôte-Agents Pathogens, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
| | | | - Philippe Despres
- Technology Platform CYROI, University of Reunion Island, Saint-Clotilde, France
| | - Frédéric Tangy
- Unité de Génomique Virale et Vaccination, Institut Pasteur, CNRS UMR-3569, Paris, France
| | - Anastassia V Komarova
- Unité de Génomique Virale et Vaccination, Institut Pasteur, CNRS UMR-3569, Paris, France
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29
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Sali TM, Pryke KM, Abraham J, Liu A, Archer I, Broeckel R, Staverosky JA, Smith JL, Al-Shammari A, Amsler L, Sheridan K, Nilsen A, Streblow DN, DeFilippis VR. Characterization of a Novel Human-Specific STING Agonist that Elicits Antiviral Activity Against Emerging Alphaviruses. PLoS Pathog 2015; 11:e1005324. [PMID: 26646986 PMCID: PMC4672893 DOI: 10.1371/journal.ppat.1005324] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 11/12/2015] [Indexed: 12/19/2022] Open
Abstract
Pharmacologic stimulation of innate immune processes represents an attractive strategy to achieve multiple therapeutic outcomes including inhibition of virus replication, boosting antitumor immunity, and enhancing vaccine immunogenicity. In light of this we sought to identify small molecules capable of activating the type I interferon (IFN) response by way of the transcription factor IFN regulatory factor 3 (IRF3). A high throughput in vitro screen yielded 4-(2-chloro-6-fluorobenzyl)-N-(furan-2-ylmethyl)-3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazine-6-carboxamide (referred to herein as G10), which was found to trigger IRF3/IFN-associated transcription in human fibroblasts. Further examination of the cellular response to this molecule revealed expression of multiple IRF3-dependent antiviral effector genes as well as type I and III IFN subtypes. This led to the establishment of a cellular state that prevented replication of emerging Alphavirus species including Chikungunya virus, Venezuelan Equine Encephalitis virus, and Sindbis virus. To define cellular proteins essential to elicitation of the antiviral activity by the compound we employed a reverse genetics approach that utilized genome editing via CRISPR/Cas9 technology. This allowed the identification of IRF3, the IRF3-activating adaptor molecule STING, and the IFN-associated transcription factor STAT1 as required for observed gene induction and antiviral effects. Biochemical analysis indicates that G10 does not bind to STING directly, however. Thus the compound may represent the first synthetic small molecule characterized as an indirect activator of human STING-dependent phenotypes. In vivo stimulation of STING-dependent activity by an unrelated small molecule in a mouse model of Chikungunya virus infection blocked viremia demonstrating that pharmacologic activation of this signaling pathway may represent a feasible strategy for combating emerging Alphaviruses.
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Affiliation(s)
- Tina M. Sali
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Kara M. Pryke
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Jinu Abraham
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Andrew Liu
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Iris Archer
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, United States of America
- Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Rebecca Broeckel
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, United States of America
- Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Julia A. Staverosky
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Jessica L. Smith
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Ahmed Al-Shammari
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, United States of America
- Iraqi Centre for Cancer and Medical Genetics Research, Baghdad, Iraq
| | - Lisi Amsler
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, United States of America
- Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Kayla Sheridan
- Veterans Affairs Medical Center, Portland, Oregon, United States of America
| | - Aaron Nilsen
- Veterans Affairs Medical Center, Portland, Oregon, United States of America
| | - Daniel N. Streblow
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, United States of America
- Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Victor R. DeFilippis
- Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, United States of America
- Department of Molecular Microbiology and Immunology, Oregon Health and Science University, Portland, Oregon, United States of America
- * E-mail:
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30
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Perkins DJ, Rajaiah R, Tennant SM, Ramachandran G, Higginson EE, Dyson TN, Vogel SN. Salmonella Typhimurium Co-Opts the Host Type I IFN System To Restrict Macrophage Innate Immune Transcriptional Responses Selectively. THE JOURNAL OF IMMUNOLOGY 2015. [PMID: 26202980 DOI: 10.4049/jimmunol.1500105] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Innate immune inflammatory responses are subject to complex layers of negative regulation at intestinal mucosal surfaces. Although the type I IFN system is critical for amplifying antiviral immunity, it has been shown to play a homeostatic role in some models of autoimmune inflammation. Type I IFN is triggered in the gut by select bacterial pathogens, but whether and how the type I IFN might regulate innate immunity in the intestinal environment have not been investigated in the context of Salmonella enterica serovar Typhimurium (ST). ST infection of human or murine macrophages reveals that IFN-β selectively restricts the transcriptional responses mediated by both the TLRs and the NOD-like receptors. Specifically, IFN-β potently represses ST-dependent innate induction of IL-1 family cytokines and neutrophil chemokines. This IFN-β-mediated transcriptional repression was independent of the effects of IFN-β on ST-induced macrophage cell death, but significantly dependent on IL-10 regulation. We further evaluated ST pathogenesis in vivo following oral inoculation of mice lacking IFN-β. We show that IFN-β(-/-) mice exhibit greater resistance to oral ST infection and a slower spread of ST to distal sterile sites. This work provides mechanistic insight into the relationship between ST and type I IFN, and demonstrates an additional mechanism by which IFN-β may promote spread of enteric pathogens.
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Affiliation(s)
- Darren J Perkins
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201; and
| | - Rajesh Rajaiah
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201; and
| | - Sharon M Tennant
- Center for Vaccine Development, University of Maryland School of Medicine, Baltimore, MD 21201
| | - Girish Ramachandran
- Center for Vaccine Development, University of Maryland School of Medicine, Baltimore, MD 21201
| | - Ellen E Higginson
- Center for Vaccine Development, University of Maryland School of Medicine, Baltimore, MD 21201
| | - Tristan N Dyson
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201; and
| | - Stefanie N Vogel
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD 21201; and
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31
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Talactac MR, Chowdhury MYE, Park ME, Weeratunga P, Kim TH, Cho WK, Kim CJ, Ma JY, Lee JS. Antiviral Effects of Novel Herbal Medicine KIOM-C, on Diverse Viruses. PLoS One 2015; 10:e0125357. [PMID: 25942440 PMCID: PMC4420246 DOI: 10.1371/journal.pone.0125357] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 03/11/2015] [Indexed: 01/28/2023] Open
Abstract
In order to identify new potential antiviral agents, recent studies have advocated thorough testing of herbal medicines or natural substances that are traditionally used to prevent viral infections. Antiviral activities and the mechanism of action of the total aqueous extract preparation of KIOM-C, a novel herbal medicine, against diverse types of viruses were investigated. In vitro antiviral activity against A/Puerto Rico/8/34 (H1N1) (PR8), vesicular stomatitis virus (VSV), and Newcastle disease virus (NDV) through the induction of type-I interferon related protein phosphorylation and up-regulation of pro-inflammatory cytokines in murine macrophage cells (RAW264.7) were determined. In vivo, KIOM-C-treated BALB/c mice showed higher survivability and lower lung viral titers when challenged with A/Aquatic bird/Korea/W81/2005 (H5N2), A/PR/8/34(H1N1), A/Aquatic bird/Korea/W44/2005(H7N3) or A/Chicken/Korea/116 /2004(H9N2) influenza subtypes in contrast with the non-treated group. The present study revealed that total aqueous extract preparation of KIOM-C stimulates an antiviral state in murine macrophage cells and in mice leading to inhibition of viral infection and protection against lethal challenges.
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Affiliation(s)
- Melbourne R. Talactac
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
- College of Veterinary Medicine and Biomedical Sciences, Cavite State University, Cavite, Philippines
| | - Mohammed Y. E. Chowdhury
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
- Faculty of Veterinary Medicine, Chittagong Veterinary and Animal Sciences University, Chittagong, Bangladesh
| | - Min-Eun Park
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Prasanna Weeratunga
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Tae-Hwan Kim
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Won-Kyung Cho
- Korean Medicine (KM) Based Herbal Drug Development Group, Korea Institute of Oriental Medicine, Deajeon, and Republic of Korea
| | - Chul-Joong Kim
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Jin Yeul Ma
- Korean Medicine (KM) Based Herbal Drug Development Group, Korea Institute of Oriental Medicine, Deajeon, and Republic of Korea
| | - Jong-Soo Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
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32
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Pan ST, Zhou ZW, He ZX, Zhang X, Yang T, Yang YX, Wang D, Qiu JX, Zhou SF. Proteomic response to 5,6-dimethylxanthenone 4-acetic acid (DMXAA, vadimezan) in human non-small cell lung cancer A549 cells determined by the stable-isotope labeling by amino acids in cell culture (SILAC) approach. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:937-68. [PMID: 25733813 PMCID: PMC4338781 DOI: 10.2147/dddt.s76021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
5,6-Dimethylxanthenone 4-acetic acid (DMXAA), also known as ASA404 and vadimezan, is a potent tumor blood vessel-disrupting agent and cytokine inducer used alone or in combination with other cytotoxic agents for the treatment of non-small cell lung cancer (NSCLC) and other cancers. However, the latest Phase III clinical trial has shown frustrating outcomes in the treatment of NSCLC, since the therapeutic targets and underlying mechanism for the anticancer effect of DMXAA are not yet fully understood. This study aimed to examine the proteomic response to DMXAA and unveil the global molecular targets and possible mechanisms for the anticancer effect of DMXAA in NSCLC A549 cells using a stable-isotope labeling by amino acids in cell culture (SILAC) approach. The proteomic data showed that treatment with DMXAA modulated the expression of 588 protein molecules in A549 cells, with 281 protein molecules being up regulated and 306 protein molecules being downregulated. Ingenuity pathway analysis (IPA) identified 256 signaling pathways and 184 cellular functional proteins that were regulated by DMXAA in A549 cells. These targeted molecules and signaling pathways were mostly involved in cell proliferation and survival, redox homeostasis, sugar, amino acid and nucleic acid metabolism, cell migration, and invasion and programed cell death. Subsequently, the effects of DMXAA on cell cycle distribution, apoptosis, autophagy, and reactive oxygen species (ROS) generation were experimentally verified. Flow cytometric analysis showed that DMXAA significantly induced G1 phase arrest in A549 cells. Western blotting assays demonstrated that DMXAA induced apoptosis via a mitochondria-dependent pathway and promoted autophagy, as indicated by the increased level of cytosolic cytochrome c, activation of caspase 3, and enhanced expression of beclin 1 and microtubule-associated protein 1A/1B-light chain 3 (LC3-II) in A549 cells. Moreover, DMXAA significantly promoted intracellular ROS generation in A549 cells. Collectively, this SILAC study quantitatively evaluates the proteomic response to treatment with DMXAA that helps to globally identify the potential molecular targets and elucidate the underlying mechanism of DMXAA in the treatment of NSCLC.
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Affiliation(s)
- Shu-Ting Pan
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, People's Republic of China
| | - Zhi-Wei Zhou
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL, USA ; Guizhou Provincial Key Laboratory for Regenerative Medicine, Stem Cell and Tissue Engineering Research Center and Sino-US Joint Laboratory for Medical Sciences, Guiyang Medical University, Guiyang, People's Republic of China
| | - Zhi-Xu He
- Guizhou Provincial Key Laboratory for Regenerative Medicine, Stem Cell and Tissue Engineering Research Center and Sino-US Joint Laboratory for Medical Sciences, Guiyang Medical University, Guiyang, People's Republic of China
| | - Xueji Zhang
- Research Center for Bioengineering and Sensing Technology, University of Science and Technology Beijing, Beijing, People's Republic of China
| | - Tianxin Yang
- Department of Internal Medicine, University of Utah and Salt Lake Veterans Affairs Medical Center, Salt Lake City, UT, USA
| | - Yin-Xue Yang
- Department of Colorectal Surgery, General Hospital of Ningxia Medical University, Yinchuan, People's Republic of China
| | - Dong Wang
- Cancer Center, Daping Hospital and Research Institute of Surgery, Third Military Medical University, Chongqing, People's Republic of China
| | - Jia-Xuan Qiu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, People's Republic of China
| | - Shu-Feng Zhou
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL, USA
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33
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Zhou ZZ, Gu CP, Deng YH, Yan GH, Li XF, Yu L, Chen WH, Liu SW. Synthesis, selective cytotoxicities and probable mechanism of action of 7-methoxy-3-arylflavone-8-acetic acids. Bioorg Med Chem 2014; 22:1539-47. [PMID: 24518295 DOI: 10.1016/j.bmc.2014.01.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 01/20/2014] [Accepted: 01/22/2014] [Indexed: 10/25/2022]
Abstract
Thirteen new analogues of flavone-8-acetic acid, that is, compounds 10a-m bearing a methoxy group at the 7-position and diverse subsitiuents on the benzene ring at the 2- and 3-positions of flavone nucleus, were synthesized and evaluated for their direct antiproliferative effects on two human tumor cell lines and for their indirect antiproliferative activities in the transwell co-culture system. The results indicated that most of compounds 10a-m showed moderate direct cytotoxicities. Among them, compound 10i exhibited higher direct cytotoxicity and selectivity for both cell lines over BJ human foreskin fibroblast cells than 5,6-dimethylxanthenone-4-acetic acid (DMXAA). Interestingly, compared with DMXAA, compound 10e showed comparable indirect cytotoxicity and higher selectivity. In addition, compound 10e was found to be able to induce tumor necrosis factor α (TNF-α) production in human peripheral blood mononuclear cells.
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Affiliation(s)
- Zhong-Zhen Zhou
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Chun-Ping Gu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Yan-Hong Deng
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Guang-Hua Yan
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Xiao-Fang Li
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China
| | - Le Yu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China
| | - Wen-Hua Chen
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China.
| | - Shu-Wen Liu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, PR China.
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34
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Liehl P, Zuzarte-Luís V, Chan J, Zillinger T, Baptista F, Carapau D, Konert M, Hanson KK, Carret C, Lassnig C, Müller M, Kalinke U, Saeed M, Chora AF, Golenbock DT, Strobl B, Prudêncio M, Coelho LP, Kappe SH, Superti-Furga G, Pichlmair A, Vigário AM, Rice CM, Fitzgerald KA, Barchet W, Mota MM. Host-cell sensors for Plasmodium activate innate immunity against liver-stage infection. Nat Med 2013; 20:47-53. [PMID: 24362933 DOI: 10.1038/nm.3424] [Citation(s) in RCA: 201] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 11/08/2013] [Indexed: 12/15/2022]
Abstract
Before they infect red blood cells and cause malaria, Plasmodium parasites undergo an obligate and clinically silent expansion phase in the liver that is supposedly undetected by the host. Here, we demonstrate the engagement of a type I interferon (IFN) response during Plasmodium replication in the liver. We identified Plasmodium RNA as a previously unrecognized pathogen-associated molecular pattern (PAMP) capable of activating a type I IFN response via the cytosolic pattern recognition receptor Mda5. This response, initiated by liver-resident cells through the adaptor molecule for cytosolic RNA sensors, Mavs, and the transcription factors Irf3 and Irf7, is propagated by hepatocytes in an interferon-α/β receptor-dependent manner. This signaling pathway is critical for immune cell-mediated host resistance to liver-stage Plasmodium infection, which we find can be primed with other PAMPs, including hepatitis C virus RNA. Together, our results show that the liver has sensor mechanisms for Plasmodium that mediate a functional antiparasite response driven by type I IFN.
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Affiliation(s)
- Peter Liehl
- Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa, Lisboa, Portugal
| | - Vanessa Zuzarte-Luís
- Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa, Lisboa, Portugal
| | - Jennie Chan
- 1] Department of Medicine, Division of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, Massachusetts, USA. [2]
| | - Thomas Zillinger
- 1] Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital of Bonn, Bonn, Germany. [2]
| | - Fernanda Baptista
- Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa, Lisboa, Portugal
| | - Daniel Carapau
- Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa, Lisboa, Portugal
| | - Madlen Konert
- Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa, Lisboa, Portugal
| | - Kirsten K Hanson
- Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa, Lisboa, Portugal
| | - Céline Carret
- Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa, Lisboa, Portugal
| | - Caroline Lassnig
- Institute of Animal Breeding and Genetics and Biomodels, Austria University of Veterinary Medicine Vienna, Vienna, Austria
| | - Mathias Müller
- Institute of Animal Breeding and Genetics and Biomodels, Austria University of Veterinary Medicine Vienna, Vienna, Austria
| | - Ulrich Kalinke
- Institute for Experimental Infection Research, TWINCORE, Centre for Experimental and Clinical Infection Research, Hannover Medical School and Helmholtz Centre for Infection Research, Hannover, Germany
| | - Mohsan Saeed
- Laboratory of Virology and Infectious Diseases, Center for the Study of Hepatitis C, The Rockefeller University, New York, New York, USA
| | - Angelo Ferreira Chora
- Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa, Lisboa, Portugal
| | - Douglas T Golenbock
- Department of Medicine, Division of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Birgit Strobl
- Institute of Animal Breeding and Genetics and Biomodels, Austria University of Veterinary Medicine Vienna, Vienna, Austria
| | - Miguel Prudêncio
- Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa, Lisboa, Portugal
| | - Luis P Coelho
- Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa, Lisboa, Portugal
| | - Stefan H Kappe
- Seattle Biomedical Research Institute, Seattle, Washington, USA
| | - Giulio Superti-Furga
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Andreas Pichlmair
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Ana M Vigário
- 1] Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa, Lisboa, Portugal. [2] Unidade de Ciências Médicas, Centro de compentência de ciências da vida, Universidade da Madeira, Funchal, Portugal
| | - Charles M Rice
- Laboratory of Virology and Infectious Diseases, Center for the Study of Hepatitis C, The Rockefeller University, New York, New York, USA
| | - Katherine A Fitzgerald
- Department of Medicine, Division of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Winfried Barchet
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital of Bonn, Bonn, Germany
| | - Maria M Mota
- Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa, Lisboa, Portugal
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Lucas-Hourani M, Dauzonne D, Jorda P, Cousin G, Lupan A, Helynck O, Caignard G, Janvier G, André-Leroux G, Khiar S, Escriou N, Desprès P, Jacob Y, Munier-Lehmann H, Tangy F, Vidalain PO. Inhibition of pyrimidine biosynthesis pathway suppresses viral growth through innate immunity. PLoS Pathog 2013; 9:e1003678. [PMID: 24098125 PMCID: PMC3789760 DOI: 10.1371/journal.ppat.1003678] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 08/16/2013] [Indexed: 12/19/2022] Open
Abstract
Searching for stimulators of the innate antiviral response is an appealing approach to develop novel therapeutics against viral infections. Here, we established a cell-based reporter assay to identify compounds stimulating expression of interferon-inducible antiviral genes. DD264 was selected out of 41,353 compounds for both its immuno-stimulatory and antiviral properties. While searching for its mode of action, we identified DD264 as an inhibitor of pyrimidine biosynthesis pathway. This metabolic pathway was recently identified as a prime target of broad-spectrum antiviral molecules, but our data unraveled a yet unsuspected link with innate immunity. Indeed, we showed that DD264 or brequinar, a well-known inhibitor of pyrimidine biosynthesis pathway, both enhanced the expression of antiviral genes in human cells. Furthermore, antiviral activity of DD264 or brequinar was found strictly dependent on cellular gene transcription, nuclear export machinery, and required IRF1 transcription factor. In conclusion, the antiviral property of pyrimidine biosynthesis inhibitors is not a direct consequence of pyrimidine deprivation on the virus machinery, but rather involves the induction of cellular immune response. Our therapeutic arsenal to treat viral diseases is extremely limited, and there is a critical need for molecules that could be used against multiple viruses. Among possible strategies, there is a growing interest for molecules stimulating cellular defense mechanisms. We recently developed a functional assay to identify stimulators of antiviral genes, and selected compound DD264 from a chemical library using this approach. While searching for its mode of action, we identified this molecule as an inhibitor of pyrimidine biosynthesis, a metabolic pathway that fuels the cell with pyrimidine nucleobases for both DNA and RNA synthesis. Interestingly, it was recently shown that inhibitors of this metabolic pathway prevent the replication of RNA viruses. Here, we established a functional link between pyrimidine biosynthesis pathway and the induction of antiviral genes, and demonstrated that pyrimidine biosynthesis inhibitors like DD264 or brequinar critically rely on cellular immune response to inhibit virus growth. Thus, pyrimidine deprivation is not directly responsible for the antiviral activity of pyrimidine biosynthesis inhibitors, which rather involves the induction of a metabolic stress and subsequent triggering of cellular defense mechanisms.
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Affiliation(s)
- Marianne Lucas-Hourani
- Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
- CNRS, UMR3569, Paris, France
| | - Daniel Dauzonne
- Institut Curie, Centre de Recherche, Paris, France
- CNRS, UMR176, Paris, France
| | - Pierre Jorda
- Institut Curie, Centre de Recherche, Paris, France
- CNRS, UMR176, Paris, France
| | - Gaëlle Cousin
- Institut Curie, Centre de Recherche, Paris, France
- CNRS, UMR176, Paris, France
| | - Alexandru Lupan
- Institut Pasteur, Unité de Chimie et Biocatalyse, Paris, France
- CNRS, UMR3523, Paris, France
| | - Olivier Helynck
- Institut Pasteur, Unité de Chimie et Biocatalyse, Paris, France
- CNRS, UMR3523, Paris, France
| | - Grégory Caignard
- Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
- CNRS, UMR3569, Paris, France
| | - Geneviève Janvier
- Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
- CNRS, UMR3569, Paris, France
| | - Gwénaëlle André-Leroux
- Institut Pasteur, Unité de Biochimie Structurale, Paris, France
- CNRS, UMR 3528, Paris, France
| | - Samira Khiar
- Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
- CNRS, UMR3569, Paris, France
| | - Nicolas Escriou
- Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
- CNRS, UMR3569, Paris, France
| | - Philippe Desprès
- Institut Pasteur, Unité Interactions moléculaires Flavivirus-Hôtes, Paris, France
| | - Yves Jacob
- CNRS, UMR3569, Paris, France
- Institut Pasteur, Unité de Génétique Moléculaire des Virus à ARN, Paris, France
- Dana-Farber Cancer Institute, Center for Cancer Systems Biology (CCSB) and Department of Cancer Biology, Boston, Massachusetts, United States of America
| | - Hélène Munier-Lehmann
- Institut Pasteur, Unité de Chimie et Biocatalyse, Paris, France
- CNRS, UMR3523, Paris, France
- * E-mail: (HML); (FT); (POV)
| | - Frédéric Tangy
- Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
- CNRS, UMR3569, Paris, France
- * E-mail: (HML); (FT); (POV)
| | - Pierre-Olivier Vidalain
- Institut Pasteur, Unité de Génomique Virale et Vaccination, Paris, France
- CNRS, UMR3569, Paris, France
- * E-mail: (HML); (FT); (POV)
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Perkins DJ, Polumuri SK, Pennini ME, Lai W, Xie P, Vogel SN. Reprogramming of murine macrophages through TLR2 confers viral resistance via TRAF3-mediated, enhanced interferon production. PLoS Pathog 2013; 9:e1003479. [PMID: 23853595 PMCID: PMC3708851 DOI: 10.1371/journal.ppat.1003479] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Accepted: 05/22/2013] [Indexed: 12/22/2022] Open
Abstract
The cell surface/endosomal Toll-like Receptors (TLRs) are instrumental in initiating immune responses to both bacteria and viruses. With the exception of TLR2, all TLRs and cytosolic RIG-I-like receptors (RLRs) with known virus-derived ligands induce type I interferons (IFNs) in macrophages or dendritic cells. Herein, we report that prior ligation of TLR2, an event previously shown to induce “homo” or “hetero” tolerance, strongly “primes” macrophages for increased Type I IFN production in response to subsequent TLR/RLR signaling. This occurs by increasing activation of the transcription factor, IFN Regulatory Factor-3 (IRF-3) that, in turn, leads to enhanced induction of IFN-β, while expression of other pro-inflammatory genes are suppressed (tolerized). In vitro or in vivo “priming” of murine macrophages with TLR2 ligands increase virus-mediated IFN induction and resistance to infection. This priming effect of TLR2 is mediated by the selective upregulation of the K63 ubiquitin ligase, TRAF3. Thus, we provide a mechanistic explanation for the observed antiviral actions of MyD88-dependent TLR2 and further define the role of TRAF3 in viral innate immunity. In response to viral infection, cells of the innate immune system synthesize and release members of the type I interferon protein family. The interferons form an essential line of defense, both by slowing viral growth and by expanding the cellular immune response. The synthesis of interferon is initiated by recognition of viral constituents by one or more innate receptors. Among these receptors, Toll like receptor 2 (TLR2) has been shown to be critical for the immune response to a number of viruses, yet TLR2 only directly initiates Type I interferon production in a very small set of innate immune cells. We have discovered that TLR 2 can contribute to the antiviral interferon response much more broadly by indirectly governing the production of interferon induced by other Toll like receptors as wells as downstream of the cytosolic Rig-I like receptors. This happens through the TLR2-dependent up-regulation of a critical signaling element, TRAF3. We also demonstrate that this TLR2 dependent regulation of interferon may be important in biological scenarios involving co-infection of virus and Gram positive bacteria, but not Gram negative bacteria.
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Affiliation(s)
- Darren J. Perkins
- Department of Microbiology and Immunology, University of Maryland, Baltimore (UMB), School of Medicine, Baltimore, Maryland, United States of America
| | - Swamy K. Polumuri
- Department of Microbiology and Immunology, University of Maryland, Baltimore (UMB), School of Medicine, Baltimore, Maryland, United States of America
| | - Meghan E. Pennini
- Department of Microbiology and Immunology, University of Maryland, Baltimore (UMB), School of Medicine, Baltimore, Maryland, United States of America
| | - Wendy Lai
- Department of Microbiology and Immunology, University of Maryland, Baltimore (UMB), School of Medicine, Baltimore, Maryland, United States of America
| | - Ping Xie
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, New Jersey, United States of America
| | - Stefanie N. Vogel
- Department of Microbiology and Immunology, University of Maryland, Baltimore (UMB), School of Medicine, Baltimore, Maryland, United States of America
- * E-mail:
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37
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Shirey KA, Lai W, Scott AJ, Lipsky M, Mistry P, Pletneva LM, Karp CL, McAlees J, Gioannini TL, Weiss J, Chen WH, Ernst RK, Rossignol DP, Gusovsky F, Blanco JCG, Vogel SN. The TLR4 antagonist Eritoran protects mice from lethal influenza infection. Nature 2013; 497:498-502. [PMID: 23636320 DOI: 10.1038/nature12118] [Citation(s) in RCA: 339] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Accepted: 03/22/2013] [Indexed: 12/31/2022]
Abstract
There is a pressing need to develop alternatives to annual influenza vaccines and antiviral agents licensed for mitigating influenza infection. Previous studies reported that acute lung injury caused by chemical or microbial insults is secondary to the generation of host-derived, oxidized phospholipid that potently stimulates Toll-like receptor 4 (TLR4)-dependent inflammation. Subsequently, we reported that Tlr4(-/-) mice are highly refractory to influenza-induced lethality, and proposed that therapeutic antagonism of TLR4 signalling would protect against influenza-induced acute lung injury. Here we report that therapeutic administration of Eritoran (also known as E5564)-a potent, well-tolerated, synthetic TLR4 antagonist-blocks influenza-induced lethality in mice, as well as lung pathology, clinical symptoms, cytokine and oxidized phospholipid expression, and decreases viral titres. CD14 and TLR2 are also required for Eritoran-mediated protection, and CD14 directly binds Eritoran and inhibits ligand binding to MD2. Thus, Eritoran blockade of TLR signalling represents a novel therapeutic approach for inflammation associated with influenza, and possibly other infections.
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Affiliation(s)
- Kari Ann Shirey
- Department of Microbiology and Immunology, University of Maryland, Baltimore, Baltimore, Maryland 21201, USA
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38
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Tang CK, Aoshi T, Jounai N, Ito J, Ohata K, Kobiyama K, Dessailly BH, Kuroda E, Akira S, Mizuguchi K, Coban C, Ishii KJ. The chemotherapeutic agent DMXAA as a unique IRF3-dependent type-2 vaccine adjuvant. PLoS One 2013; 8:e60038. [PMID: 23555875 PMCID: PMC3605442 DOI: 10.1371/journal.pone.0060038] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Accepted: 02/21/2013] [Indexed: 12/14/2022] Open
Abstract
5,6-Dimethylxanthenone-4-acetic acid (DMXAA), a potent type I interferon (IFN) inducer, was evaluated as a chemotherapeutic agent in mouse cancer models and proved to be well tolerated in human cancer clinical trials. Despite its multiple biological functions, DMXAA has not been fully characterized for the potential application as a vaccine adjuvant. In this report, we show that DMXAA does act as an adjuvant due to its unique property as a soluble innate immune activator. Using OVA as a model antigen, DMXAA was demonstrated to improve on the antigen specific immune responses and induce a preferential Th2 (Type-2) response. The adjuvant effect was directly dependent on the IRF3-mediated production of type-I-interferon, but not IL-33. DMXAA could also enhance the immunogenicity of influenza split vaccine which led to significant increase in protective responses against live influenza virus challenge in mice compared to split vaccine alone. We propose that DMXAA can be used as an adjuvant that targets a specific innate immune signaling pathway via IRF3 for potential applications including vaccines against influenza which requires a high safety profile.
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Affiliation(s)
- Choon Kit Tang
- Singapore Immunology Network, Agency for Science and Technology Research, Singapore
- Malaria Immunology Laboratory, Immunology Frontier Research Centre (IFReC), Osaka University, Japan
- Host Defense Laboratory, IFReC, Osaka University, Japan
- Vaccine Science Laboratory, IFReC, Osaka University, Japan
| | - Taiki Aoshi
- Vaccine Science Laboratory, IFReC, Osaka University, Japan
- Laboratory of Adjuvant Innovation, NIBIO, Osaka, Japan
| | - Nao Jounai
- Laboratory of Adjuvant Innovation, NIBIO, Osaka, Japan
| | - Junichi Ito
- Laboratory of Bioinformatics, National Institute of Biomedical Innovation (NIBIO), Osaka, Japan
| | - Keiichi Ohata
- Malaria Immunology Laboratory, Immunology Frontier Research Centre (IFReC), Osaka University, Japan
| | - Kouji Kobiyama
- Vaccine Science Laboratory, IFReC, Osaka University, Japan
- Laboratory of Adjuvant Innovation, NIBIO, Osaka, Japan
| | - Benoit H. Dessailly
- Laboratory of Bioinformatics, National Institute of Biomedical Innovation (NIBIO), Osaka, Japan
| | - Etsushi Kuroda
- Vaccine Science Laboratory, IFReC, Osaka University, Japan
- Laboratory of Adjuvant Innovation, NIBIO, Osaka, Japan
| | - Shizuo Akira
- Host Defense Laboratory, IFReC, Osaka University, Japan
| | - Kenji Mizuguchi
- Laboratory of Bioinformatics, National Institute of Biomedical Innovation (NIBIO), Osaka, Japan
| | - Cevayir Coban
- Malaria Immunology Laboratory, Immunology Frontier Research Centre (IFReC), Osaka University, Japan
| | - Ken J. Ishii
- Vaccine Science Laboratory, IFReC, Osaka University, Japan
- Laboratory of Adjuvant Innovation, NIBIO, Osaka, Japan
- * E-mail:
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39
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Prantner D, Perkins DJ, Lai W, Williams MS, Sharma S, Fitzgerald KA, Vogel SN. 5,6-Dimethylxanthenone-4-acetic acid (DMXAA) activates stimulator of interferon gene (STING)-dependent innate immune pathways and is regulated by mitochondrial membrane potential. J Biol Chem 2012; 287:39776-88. [PMID: 23027866 DOI: 10.1074/jbc.m112.382986] [Citation(s) in RCA: 159] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The chemotherapeutic agent 5,6-dimethylxanthenone-4-acetic acid (DMXAA) is a potent inducer of type I IFNs and other cytokines. This ability is essential for its chemotherapeutic benefit in a mouse cancer model and suggests that it might also be useful as an antiviral agent. However, the mechanism underlying DMXAA-induced type I IFNs, including the host proteins involved, remains unclear. Recently, it was reported that the antioxidant N-acetylcysteine (NAC) decreased DMXAA-induced TNF-α and IL-6, suggesting that oxidative stress may play a role. The goal of this study was to identify host proteins involved in DMXAA-dependent signaling and determine how antioxidants modulate this response. We found that expression of IFN-β in response to DMXAA in mouse macrophages requires the mitochondrial and endoplasmic reticulum resident protein STING. Addition of the antioxidant diphenylene iodonium (DPI) diminished DMXAA-induced IFN-β, but this decrease was independent of both the NADPH oxidase, Nox2, and de novo generation of reactive oxygen species. Additionally, IFN-β up-regulation by DMXAA was inhibited by agents that target the mitochondrial electron transport chain and, conversely, loss of mitochondrial membrane potential correlated with diminished innate immune signaling in response to DMXAA. Up-regulation of Ifnb1 gene expression mediated by cyclic dinucleotides was also impaired by DPI, whereas up-regulation of Ifnb1 mRNA due to cytosolic double-stranded DNA was not. Although both stimuli signal through STING, cyclic dinucleotides interact directly with STING, suggesting that recognition of DMXAA by STING may also be mediated by direct interaction.
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Affiliation(s)
- Daniel Prantner
- Department of Microbiology and Immunology, University of Maryland, School of Medicine (UMB), Baltimore, Maryland 21201, USA
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Wu Q, Quan H, Xu Y, Li Y, Hu Y, Lou L. p38 mitogen-activated protein kinase is required for the antitumor activity of the vascular disrupting agent 5,6-dimethylxanthenone-4-acetic acid. J Pharmacol Exp Ther 2012; 341:709-17. [PMID: 22414857 DOI: 10.1124/jpet.112.191635] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
5,6-Dimethylxanthenone-4-acetic acid (DMXAA), a potent vascular disrupting agent, selectively destroys established tumor vasculature, causing a rapid collapse in blood flow that ultimately leads to inhibition of tumor growth. Here, we demonstrate that p38 MAPK is critically involved in DMXAA-induced cytoskeleton reorganization in endothelial cells and tumor necrosis factor-α (TNF-α) production in macrophages, both of which were essential for DMXAA-induced vascular disruption. Inhibition of p38 mitogen-activated protein kinase (MAPK) significantly attenuated DMXAA-induced actin cytoskeleton reorganization in human umbilical vein endothelial cells and TNF-α production in macrophages. In vivo, p38 MAPK inhibition attenuated the immediate reduction in tumor blood flow induced by DMXAA treatment (<30 min) by inhibiting actin cytoskeleton reorganization in tumor vascular endothelial cells and blunted the long-lasting (>4 h) DMXAA-induced shutdown of the tumor vasculature by inhibiting intratumoral TNF-α production. These results indicate that p38 MAPK plays a critical role in DMXAA-induced endothelial cell cytoskeleton reorganization and TNF-α production, thus regulating DMXAA-induced antitumor activity.
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Affiliation(s)
- Qiong Wu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Rd., Shanghai 201203, China
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41
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Müller KH, Kakkola L, Nagaraj AS, Cheltsov AV, Anastasina M, Kainov DE. Emerging cellular targets for influenza antiviral agents. Trends Pharmacol Sci 2012; 33:89-99. [DOI: 10.1016/j.tips.2011.10.004] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 10/12/2011] [Accepted: 10/14/2011] [Indexed: 01/23/2023]
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42
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Jameson MB, Head M. Pharmacokinetic evaluation of vadimezan (ASA404, 5,6-dimethylxanthenone-4-acetic acid, DMXAA). Expert Opin Drug Metab Toxicol 2011; 7:1315-26. [DOI: 10.1517/17425255.2011.614389] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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43
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Young H. Editorial: One small molecule: a new way to treat the flu? J Leukoc Biol 2011; 89:327-8. [PMID: 21357247 DOI: 10.1189/jlb.1010580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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