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Hashemi M, Mohandesi Khosroshahi E, Tanha M, Khoushab S, Bizhanpour A, Azizi F, Mohammadzadeh M, Matinahmadi A, Khazaei Koohpar Z, Asadi S, Taheri H, Khorrami R, Ramezani Farani M, Rashidi M, Rezaei M, Fattah E, Taheriazam A, Entezari M. Targeting autophagy can synergize the efficacy of immune checkpoint inhibitors against therapeutic resistance: New promising strategy to reinvigorate cancer therapy. Heliyon 2024; 10:e37376. [PMID: 39309904 PMCID: PMC11415696 DOI: 10.1016/j.heliyon.2024.e37376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 06/29/2024] [Accepted: 09/02/2024] [Indexed: 09/25/2024] Open
Abstract
Immune checkpoints are a set of inhibitory and stimulatory molecules/mechanisms that affect the activity of immune cells to maintain the existing balance between pro- and anti-inflammatory signaling pathways and avoid the progression of autoimmune disorders. Tumor cells can employ these checkpoints to evade immune system. The discovery and development of immune checkpoint inhibitors (ICIs) was thereby a milestone in the area of immuno-oncology. ICIs stimulate anti-tumor immune responses primarily by disrupting co-inhibitory signaling mechanisms and accelerate immune-mediated killing of tumor cells. Despite the beneficial effects of ICIs, they sometimes encounter some degrees of therapeutic resistance, and thereby do not effectively act against tumors. Among multiple combination therapies have been introduced to date, targeting autophagy, as a cellular degradative process to remove expired organelles and subcellular constituents, has represented with potential capacities to overcome ICI-related therapy resistance. It has experimentally been illuminated that autophagy induction blocks the immune checkpoint molecules when administered in conjugation with ICIs, suggesting that autophagy activation may restrict therapeutic challenges that ICIs have encountered with. However, the autophagy flux can also provoke the immune escape of tumors, which must be considered. Since the conventional FDA-approved ICIs have designed and developed to target programmed cell death receptor/ligand 1 (PD-1/PD-L1) as well as cytotoxic T lymphocyte-associated molecule 4 (CTLA-4) immune checkpoint molecules, we aim to review the effects of autophagy targeting in combination with anti-PD-1/PD-L1- and anti-CTLA-4-based ICIs on cancer therapeutic resistance and tumor immune evasion.
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Affiliation(s)
- Mehrdad Hashemi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Elaheh Mohandesi Khosroshahi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mahsa Tanha
- Department of Biological Sciences, University of Alabama, Tuscaloosa, AL, United States
| | - Saloomeh Khoushab
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Anahita Bizhanpour
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Farnaz Azizi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mahsa Mohammadzadeh
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Arash Matinahmadi
- Department of Cellular and Molecular Biology, Nicolaus Copernicus University, Torun, Poland
| | - Zeinab Khazaei Koohpar
- Department of Cell and Molecular Biology, Faculty of Biological Sciences, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
| | - Saba Asadi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Hengameh Taheri
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Ramin Khorrami
- Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Marzieh Ramezani Farani
- Department of Biological Sciences and Bioengineering, Nano Bio High-Tech Materials Research Center, Inha University, 100 Inha-ro, Michuhol-gu, Incheon, 22212, Republic of Korea
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mahdi Rezaei
- Health Research Center, Chamran Hospital, Tehran, Iran
| | - Eisa Fattah
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Department of Orthopedics, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Maliheh Entezari
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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Gunay G, Maier KN, Hamsici S, Carvalho F, Timog TA, Acar H. Peptide aggregation-induced immunogenic cell death in a breast cancer spheroid model. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.31.565012. [PMID: 37961293 PMCID: PMC10635027 DOI: 10.1101/2023.10.31.565012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Utilizing multicellular aggregates (spheroids) for in vitro cancer research offers a physiologically relevant model that closely mirrors the intricate tumor microenvironment, capturing properties of solid tumors such as cell interactions and drug resistance. In this research, we investigated the Peptide-Aggregation Induced Immunogenic Response (PAIIR), an innovative method employing engineered peptides we designed specifically to induce immunogenic cell death (ICD). We contrasted PAIIR-induced ICD with standard ICD and non-ICD inducer chemotherapeutics within the context of three-dimensional breast cancer tumor spheroids. Our findings reveal that PAIIR outperforms traditional chemotherapeutics in its efficacy to stimulate ICD. This is marked by the release of key damage-associated molecular patterns (DAMPs), which bolster the phagocytic clearance of dying cancer cells by dendritic cells (DCs) and, in turn, activate powerful anti-tumor immune responses. Additionally, we observed that PAIIR results in elevated dendritic cell activation and increased antitumor cytokine presence. This study not only showcases the utility of tumor spheroids for efficient high-throughput screening but also emphasizes PAIIR's potential as a formidable immunotherapeutic strategy against breast cancer, setting the stage for deeper exploration and potential clinical implementation.
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Mahalingam SS, Jayaraman S, Arunkumar A, Dudley HM, Anthony DD, Shive CL, Jacobson JM, Pandiyan P. Distinct SARS-CoV-2 specific NLRP3 and IL-1β responses in T cells of aging patients during acute COVID-19 infection. Front Immunol 2023; 14:1231087. [PMID: 37799713 PMCID: PMC10548880 DOI: 10.3389/fimmu.2023.1231087] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 08/31/2023] [Indexed: 10/07/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes Coronavirus Disease 2019 (COVID-19) that presents with varied clinical manifestations ranging from asymptomatic or mild infections and pneumonia to severe cases associated with cytokine storm, acute respiratory distress syndrome (ARDS), and even death. The underlying mechanisms contributing to these differences are unclear, although exacerbated inflammatory sequelae resulting from infection have been implicated. While advanced aging is a known risk factor, the precise immune parameters that determine the outcome of SARS-CoV-2 infection in elderly individuals are not understood. Here, we found aging-associated (age ≥61) intrinsic changes in T cell responses when compared to those from individuals aged ≤ 60, even among COVID-positive patients with mild symptoms. Specifically, when stimulated with SARS-CoV-2 peptides in vitro, peripheral blood mononuclear cell (PBMC) CD4+ and CD8+ T cells from individuals aged ≥61 showed a diminished capacity to produce IFN-γ and IL-1β. Although they did not have severe disease, aged individuals also showed a higher frequency of PD-1+ cells and significantly diminished IFN-γ/PD-1 ratios among T lymphocytes upon SARS-CoV-2 peptide stimulation. Impaired T cell IL-1β expression coincided with reduced NLRP3 levels in T lymphocytes. However, the expression of these molecules was not affected in the monocytes of individuals aged ≥61. Together, these data reveal SARS-CoV-2-specific CD4+ and CD8+ T-cell intrinsic cytokine alterations in the individuals older than 61 and may provide new insights into dysregulated COVID-directed immune responses in the elderly.
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Affiliation(s)
- Shanmuga Sundaram Mahalingam
- Department of Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Sangeetha Jayaraman
- Department of Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Adhvika Arunkumar
- Department of Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Holly M. Dudley
- Department of Molecular Biology and Microbiology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Donald D. Anthony
- Department of Rheumatology, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, United States
- Department of Pathology, Case Western Reserve University, Cleveland, OH, United States
- Center for AIDS Research, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Department of Medicine, School of Medicine, University Hospitals, Case Western Reserve University, Cleveland, OH, United States
| | - Carey L. Shive
- Department of Rheumatology, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, United States
- Department of Pathology, Case Western Reserve University, Cleveland, OH, United States
| | - Jeffrey M. Jacobson
- Center for AIDS Research, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
- Department of Medicine, School of Medicine, University Hospitals, Case Western Reserve University, Cleveland, OH, United States
| | - Pushpa Pandiyan
- Department of Biological Sciences, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, United States
- Department of Rheumatology, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, United States
- Center for AIDS Research, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
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Hamza S, Martynova E, Garanina E, Shakirova V, Bilalova A, Moiseeva S, Khaertynova I, Ohlopkova O, Blatt N, Markelova M, Khaiboullina S. Neutralizing Antibodies in COVID-19 Serum from Tatarstan, Russia. Int J Mol Sci 2023; 24:10181. [PMID: 37373331 DOI: 10.3390/ijms241210181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/05/2023] [Accepted: 06/10/2023] [Indexed: 06/29/2023] Open
Abstract
The severity of COVID-19 is a result of the complex interplay between various branches of the immune system. However, our understanding of the role of neutralizing antibodies and the activation of cellular immune response in COVID-19 pathogenesis remains limited. In this study, we investigated neutralizing antibodies in patients with mild, moderate, and severe COVID-19, analyzing their cross-reactivity with the Wuhan and Omicron variants. We also assessed the activation of the immune response by measuring serum cytokines in patients with mild, moderate, and severe COVID-19. Our findings suggest the early activation of neutralizing antibodies in moderate COVID-19 compared to mild cases. We also observed a strong correlation between the cross-reactivity of neutralizing antibodies to the Omicron and Wuhan variants and the severity of the disease. In addition, we found that Th1 lymphocyte activation was present in mild and moderate cases, while inflammasomes and Th17 lymphocytes were activated in severe COVID-19. In conclusion, our data indicate that the early activation of neutralizing antibodies is evident in moderate COVID-19, and there is a strong correlation between the cross-reactivity of neutralizing antibodies and the severity of the disease. Our findings suggest that the Th1 immune response may play a protective role, while inflammasome and Th17 activation may be involved in severe COVID-19.
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Affiliation(s)
- Shaimaa Hamza
- OpenLab "Gene and Cell Technologies", Kazan Federal University, 420021 Kazan, Russia
| | - Ekaterina Martynova
- OpenLab "Gene and Cell Technologies", Kazan Federal University, 420021 Kazan, Russia
| | - Ekaterina Garanina
- OpenLab "Gene and Cell Technologies", Kazan Federal University, 420021 Kazan, Russia
| | - Venera Shakirova
- Department of Infectious Diseases, Kazan State Medical Academy, 420012 Kazan, Russia
| | - Alisa Bilalova
- Department of Infectious Diseases, Kazan State Medical Academy, 420012 Kazan, Russia
| | - Svetlana Moiseeva
- Department of Infectious Diseases, Kazan State Medical Academy, 420012 Kazan, Russia
| | - Ilsiyar Khaertynova
- Department of Infectious Diseases, Kazan State Medical Academy, 420012 Kazan, Russia
| | - Olesia Ohlopkova
- State Research Center of Virology and Biotechnology «Vector» of Rospotrebnadzor, 630559 Koltsovo, Russia
| | - Nataliya Blatt
- OpenLab "Gene and Cell Technologies", Kazan Federal University, 420021 Kazan, Russia
| | - Maria Markelova
- OpenLab "Gene and Cell Technologies", Kazan Federal University, 420021 Kazan, Russia
| | - Svetlana Khaiboullina
- OpenLab "Gene and Cell Technologies", Kazan Federal University, 420021 Kazan, Russia
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Kokinos EK, Tsymbal SA, Galochkina AV, Bezlepkina SA, Nikolaeva JV, Vershinina SO, Shtro AA, Tatarskiy VV, Shtil AA, Broude EV, Roninson IB, Dukhinova M. Inhibition of Cyclin-Dependent Kinases 8/19 Restricts Bacterial and Virus-Induced Inflammatory Responses in Monocytes. Viruses 2023; 15:1292. [PMID: 37376593 PMCID: PMC10305654 DOI: 10.3390/v15061292] [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: 04/07/2023] [Revised: 05/29/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023] Open
Abstract
Hyperactivation of the immune system remains a dramatic, life-threatening complication of viral and bacterial infections, particularly during pneumonia. Therapeutic approaches to counteract local and systemic outbreaks of cytokine storm and to prevent tissue damage remain limited. Cyclin-dependent kinases 8 and 19 (CDK8/19) potentiate transcriptional responses to the altered microenvironment, but CDK8/19 potential in immunoregulation is not fully understood. In the present study, we investigated how a selective CDK8/19 inhibitor, Senexin B, impacts the immunogenic profiles of monocytic cells stimulated using influenza virus H1N1 or bacterial lipopolysaccharides. Senexin B was able to prevent the induction of gene expression of proinflammatory cytokines in THP1 and U937 cell lines and in human peripheral blood-derived mononuclear cells. Moreover, Senexin B substantially reduced functional manifestations of inflammation, including clustering and chemokine-dependent migration of THP1 monocytes and human pulmonary fibroblasts (HPF).
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Affiliation(s)
- Elena K Kokinos
- SCAMT Institute, ITMO University, 9 Lomonosova Street, 191002 Saint-Petersburg, Russia
| | - Sergey A Tsymbal
- SCAMT Institute, ITMO University, 9 Lomonosova Street, 191002 Saint-Petersburg, Russia
| | - Anastasia V Galochkina
- Smorodintsev Research Institute of Influenza, 15/17 Prof. Popov Street, 197376 Saint-Petersburg, Russia
| | - Svetlana A Bezlepkina
- SCAMT Institute, ITMO University, 9 Lomonosova Street, 191002 Saint-Petersburg, Russia
| | - Julia V Nikolaeva
- Smorodintsev Research Institute of Influenza, 15/17 Prof. Popov Street, 197376 Saint-Petersburg, Russia
| | - Sofia O Vershinina
- SCAMT Institute, ITMO University, 9 Lomonosova Street, 191002 Saint-Petersburg, Russia
| | - Anna A Shtro
- Smorodintsev Research Institute of Influenza, 15/17 Prof. Popov Street, 197376 Saint-Petersburg, Russia
| | - Victor V Tatarskiy
- Institute of Gene Biology, Russian Academy of Sciences, 34/5 Vavilova Street, 119334 Moscow, Russia
| | - Alexander A Shtil
- Blokhin National Medical Research Center of Oncology, Kashirskoe Highway 24, 115478 Moscow, Russia
| | - Eugenia V Broude
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, Sumter Street 715, Columbia, SC 29208, USA
| | - Igor B Roninson
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, Sumter Street 715, Columbia, SC 29208, USA
| | - Marina Dukhinova
- SCAMT Institute, ITMO University, 9 Lomonosova Street, 191002 Saint-Petersburg, Russia
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Rex V, Zargari R, Stempel M, Halle S, Brinkmann MM. The innate and T-cell mediated immune response during acute and chronic gammaherpesvirus infection. Front Cell Infect Microbiol 2023; 13:1146381. [PMID: 37065193 PMCID: PMC10102517 DOI: 10.3389/fcimb.2023.1146381] [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: 01/17/2023] [Accepted: 03/20/2023] [Indexed: 04/03/2023] Open
Abstract
Immediately after entry into host cells, viruses are sensed by the innate immune system, leading to the activation of innate antiviral effector mechanisms including the type I interferon (IFN) response and natural killer (NK) cells. This innate immune response helps to shape an effective adaptive T cell immune response mediated by cytotoxic T cells and CD4+ T helper cells and is also critical for the maintenance of protective T cells during chronic infection. The human gammaherpesvirus Epstein-Barr virus (EBV) is a highly prevalent lymphotropic oncovirus that establishes chronic lifelong infections in the vast majority of the adult population. Although acute EBV infection is controlled in an immunocompetent host, chronic EBV infection can lead to severe complications in immunosuppressed patients. Given that EBV is strictly host-specific, its murine homolog murid herpesvirus 4 or MHV68 is a widely used model to obtain in vivo insights into the interaction between gammaherpesviruses and their host. Despite the fact that EBV and MHV68 have developed strategies to evade the innate and adaptive immune response, innate antiviral effector mechanisms still play a vital role in not only controlling the acute infection but also shaping an efficient long-lasting adaptive immune response. Here, we summarize the current knowledge about the innate immune response mediated by the type I IFN system and NK cells, and the adaptive T cell-mediated response during EBV and MHV68 infection. Investigating the fine-tuned interplay between the innate immune and T cell response will provide valuable insights which may be exploited to design better therapeutic strategies to vanquish chronic herpesviral infection.
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Affiliation(s)
- Viktoria Rex
- Institute of Genetics, Technische Universität Braunschweig, Braunschweig, Germany
| | - Razieh Zargari
- Institute of Immunology, Hannover Medical School, Hannover, Germany
| | - Markus Stempel
- Institute of Genetics, Technische Universität Braunschweig, Braunschweig, Germany
- Virology and Innate Immunity Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Stephan Halle
- Institute of Immunology, Hannover Medical School, Hannover, Germany
- Institute of Clinical Chemistry, Hannover Medical School, Hannover, Germany
- *Correspondence: Stephan Halle, ; Melanie M. Brinkmann,
| | - Melanie M. Brinkmann
- Institute of Genetics, Technische Universität Braunschweig, Braunschweig, Germany
- Virology and Innate Immunity Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
- *Correspondence: Stephan Halle, ; Melanie M. Brinkmann,
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Zurlo M, Nicoli F, Proietto D, Dallan B, Zuccato C, Cosenza LC, Gasparello J, Papi C, d'Aversa E, Borgatti M, Scapoli C, Finotti A, Gambari R. Effects of Sirolimus treatment on patients with β-Thalassemia: Lymphocyte immunophenotype and biological activity of memory CD4 + and CD8 + T cells. J Cell Mol Med 2023; 27:353-364. [PMID: 36625233 PMCID: PMC9889681 DOI: 10.1111/jcmm.17655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 12/04/2022] [Accepted: 12/10/2022] [Indexed: 01/11/2023] Open
Abstract
Inhibitors of the mammalian target of rapamycin (mTOR) have been proposed to improve vaccine responses, especially in the elderly. Accordingly, testing mTOR inhibitors (such as Sirolimus) and other geroprotective drugs might be considered a key strategy to improve overall health resilience of aged populations. In this respect, Sirolimus (also known as rapamycin) is of great interest, in consideration of the fact that it is extensively used in routine therapy and in clinical studies for the treatment of several diseases. Recently, Sirolimus has been considered in laboratory and clinical studies aimed to find novel protocols for the therapy of hemoglobinopathies (e.g. β-Thalassemia). The objective of the present study was to analyse the activity of CD4+ and CD8+ T cells in β-Thalassemia patients treated with Sirolimus, taking advantages from the availability of cellular samples of the NCT03877809 clinical trial. The approach was to verify IFN-γ releases following stimulation of peripheral blood mononuclear cells (PBMCs) to stimulatory CEF and CEFTA peptide pools, stimulatory for CD4+ and CD8+ T cells, respectively. The main results of the present study are that treatment of β-Thalassemia patients with Sirolimus has a positive impact on the biological activity and number of memory CD4+ and CD8+ T cells releasing IFN-γ following stimulation with antigenic stimuli present in immunological memory. These data are to our knowledge novel and in our opinion of interest, in consideration of the fact that β-Thalassemia patients are considered prone to immune deficiency.
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Affiliation(s)
- Matteo Zurlo
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular BiologyUniversity of FerraraFerraraItaly
| | - Francesco Nicoli
- Department of Chemistry, Pharmaceutical and Agricultural SciencesUniversity of FerraraFerraraItaly
| | - Davide Proietto
- Department of Chemistry, Pharmaceutical and Agricultural SciencesUniversity of FerraraFerraraItaly
| | - Beatrice Dallan
- Department of Chemistry, Pharmaceutical and Agricultural SciencesUniversity of FerraraFerraraItaly
| | - Cristina Zuccato
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular BiologyUniversity of FerraraFerraraItaly
| | - Lucia Carmela Cosenza
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular BiologyUniversity of FerraraFerraraItaly
| | - Jessica Gasparello
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular BiologyUniversity of FerraraFerraraItaly
| | - Chiara Papi
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular BiologyUniversity of FerraraFerraraItaly
| | - Elisabetta d'Aversa
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular BiologyUniversity of FerraraFerraraItaly
| | - Monica Borgatti
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular BiologyUniversity of FerraraFerraraItaly
| | - Chiara Scapoli
- Department of Life Sciences and Biotechnology, Section of Biology and EvolutionUniversity of FerraraFerraraItaly
| | - Alessia Finotti
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular BiologyUniversity of FerraraFerraraItaly
| | - Roberto Gambari
- Department of Life Sciences and Biotechnology, Section of Biochemistry and Molecular BiologyUniversity of FerraraFerraraItaly,Center Chiara Gemmo and Elio Zago for the Research on ThalassemiaUniversity of FerraraFerraraItaly
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Chiang MC, Chern E. Ocular surface microbiota: Ophthalmic infectious disease and probiotics. Front Microbiol 2022; 13:952473. [PMID: 36060740 PMCID: PMC9437450 DOI: 10.3389/fmicb.2022.952473] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 08/01/2022] [Indexed: 11/13/2022] Open
Abstract
Recently, increasing studies have emphasized the importance of commensal bacteria in humans, including microbiota in the oral cavity, gut, vagina, or skin. Ocular surface microbiota (OSM) is gaining great importance as new methodologies for bacteria DNA sequencing have been published. This review outlines the current understanding and investigation of OSM and introduces the new concept of the gut–eye axis. Moreover, we have collected current studies that focus on the relationship between ophthalmic infectious disease and alterations in the OSM or human gut microbiota. Finally, we discuss the current application of probiotics in ophthalmic infectious disease, its limitations to date, and futural directions.
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Affiliation(s)
- Ming-Cheng Chiang
- niChe Lab for Stem Cell and Regenerative Medicine, Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Edward Chern
- niChe Lab for Stem Cell and Regenerative Medicine, Department of Biochemical Science and Technology, National Taiwan University, Taipei, Taiwan
- Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan
- *Correspondence: Edward Chern
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9
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Types of necroinflammation, the effect of cell death modalities on sterile inflammation. Cell Death Dis 2022; 13:423. [PMID: 35501340 PMCID: PMC9061831 DOI: 10.1038/s41419-022-04883-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/13/2022] [Accepted: 04/22/2022] [Indexed: 11/17/2022]
Abstract
Distinct types of immune responses are activated by infections, which cause the development of type I, II, or III inflammation, regulated by Th1, Th2, Th17 helper T cells and ILC1, ILC2 and ILC3 cells, respectively. While the classification of immune responses to different groups of pathogens is widely accepted, subtypes of the immune response elicited by sterile inflammation have not yet been detailed. Necroinflammation is associated with the release of damage-associated molecular patterns (DAMP) from dying cells. In this review, we present that the distinct molecular mechanisms activated during apoptosis, necroptosis, pyroptosis, and ferroptosis lead to the release of different patterns of DAMPs and their suppressors, SAMPs. We summarize the currently available data on how regulated cell death pathways and released DAMPs and SAMPs direct the differentiation of T helper and ILC cells. Understanding the subtypes of necroinflammation can be crucial in developing strategies for the treatment of sterile inflammatory diseases caused by cell death processes.
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Castillo-Salazar M, Sánchez-Muñoz F, Springall del Villar R, Navarrete-Vázquez G, Hernández-DiazCouder A, Mojica-Cardoso C, García-Jiménez S, Toledano-Jaimes C, Bernal-Fernández G. Nitazoxanide Exerts Immunomodulatory Effects on Peripheral Blood Mononuclear Cells from Type 2 Diabetes Patients. Biomolecules 2021; 11:1817. [PMID: 34944461 PMCID: PMC8699442 DOI: 10.3390/biom11121817] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/29/2021] [Accepted: 11/30/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Type 2 diabetes (T2D) is a low-grade inflammatory condition with abnormalities in the immune response mediated by T lymphocytes and macrophages. Drug repositioning for immunomodulatory molecules is an attractive proposal for treating T2D. Nitazoxanide (NTZ) is a broad-spectrum drug with promising immunomodulatory effects. Thus, we investigated the immunomodulatory effect of NTZ on peripheral blood mononuclear cells (PBMCs) from patients with T2D. METHODS Fifty patients with T2D were selected, and the proliferative response of T lymphocytes and the M1/M2 ratio of macrophages post cell culture were evaluated by flow cytometry, as well as measuring the concentration of cytokines by ELISA and the relative expression of microRNAs (miRNAs) related to the immune response by real-time PCR. RESULTS NTZ exerts an inhibitory effect on the cell proliferation of T lymphocytes stimulated with anti-CD3 and anti-CD28 antibodies without modifying cell viability, and significant decreases in the supernatant concentrations of interleukin (IL)-1β, IL-2, IL-6, IL-10, and IL-12. Furthermore, NTZ negatively regulates the relative expression of miR-155-5p without changes in miR-146a-5p. The M1/M2 ratio of monocytes/macrophages decreased the M1 and increased the M2 subpopulation by NTZ. CONCLUSIONS Our results suggest that NTZ exerts immunomodulatory effects on PBMCs from T2D patients, and shows potential alternative therapeutic benefits.
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Affiliation(s)
- Mauricio Castillo-Salazar
- Pharmacy Faculty, Universidad Autónoma del Estado de Morelos, Cuernavaca 62209, Mexico; (M.C.-S.); (G.N.-V.); (S.G.-J.); (C.T.-J.)
| | - Fausto Sánchez-Muñoz
- Immunology Department, Instituto Nacional de Cardiología Ignacio Chávez, Tlalpan, Mexico City 14080, Mexico; (F.S.-M.); (R.S.d.V.); (A.H.-D.)
| | - Rashidi Springall del Villar
- Immunology Department, Instituto Nacional de Cardiología Ignacio Chávez, Tlalpan, Mexico City 14080, Mexico; (F.S.-M.); (R.S.d.V.); (A.H.-D.)
| | - Gabriel Navarrete-Vázquez
- Pharmacy Faculty, Universidad Autónoma del Estado de Morelos, Cuernavaca 62209, Mexico; (M.C.-S.); (G.N.-V.); (S.G.-J.); (C.T.-J.)
| | - Adrián Hernández-DiazCouder
- Immunology Department, Instituto Nacional de Cardiología Ignacio Chávez, Tlalpan, Mexico City 14080, Mexico; (F.S.-M.); (R.S.d.V.); (A.H.-D.)
| | | | - Sara García-Jiménez
- Pharmacy Faculty, Universidad Autónoma del Estado de Morelos, Cuernavaca 62209, Mexico; (M.C.-S.); (G.N.-V.); (S.G.-J.); (C.T.-J.)
| | - Cairo Toledano-Jaimes
- Pharmacy Faculty, Universidad Autónoma del Estado de Morelos, Cuernavaca 62209, Mexico; (M.C.-S.); (G.N.-V.); (S.G.-J.); (C.T.-J.)
| | - Germán Bernal-Fernández
- Pharmacy Faculty, Universidad Autónoma del Estado de Morelos, Cuernavaca 62209, Mexico; (M.C.-S.); (G.N.-V.); (S.G.-J.); (C.T.-J.)
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11
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Anti-inflammatory effects of a novel phosphodiesterase-4 inhibitor, AA6216, in mouse dermatitis models. Eur J Pharmacol 2021; 906:174258. [PMID: 34139195 DOI: 10.1016/j.ejphar.2021.174258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 06/02/2021] [Accepted: 06/11/2021] [Indexed: 01/25/2023]
Abstract
Atopic dermatitis (AD) is a chronic inflammatory skin disease that is commonly treated with corticosteroids. However, these drugs have long-term adverse effects, representing an unmet need for new treatments. AD is associated with dysregulation of phosphodiesterase 4 (PDE4) activity in inflammatory cells and the topical PDE4 inhibitor, crisaborole, is approved by the US FDA for mild-to-moderate AD. In this study, we compared the effects of a novel PDE4 inhibitor, AA6216, with those of crisaborole on skin inflammation. We found that AA6216 is a more potent inhibitor of PDE4 and of cytokine production (TNF-α, IL-12/23p40, IL-4, IL-13, and IFN-γ) by human peripheral blood mononuclear cells (PBMCs) stimulated by phytohemagglutinin (PHA) or anti-CD3 antibodies, with IC50 values ranging from 5.9 to 47 nM. AA6216 also significantly suppressed skin inflammation in three mouse models of dermatitis. In acute and chronic oxazolone-induced dermatitis models, topical AA6216 exhibited stronger inhibitory effects on ear inflammation and cytokine production (TNFα, IL-1β, and IL-4) in skin lesions compared with crisaborole. In a Dermatophagoides farinae-induced dermatitis model, AA6216 significantly reduced the dermatitis score, based on the development of erythema/hemorrhage, scarring/dryness, edema, and excoriation/erosion, compared with a clinically used topical AD drug, tacrolimus. These results suggest the possibility that AA6216 is a novel and effective topical therapeutic agent for the treatment of dermatitis including AD.
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12
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Liu H, Meng Z, Wang H, Zhang S, Huang Z, Geng X, Guo R, Wu Z, Hong Z. Robust Immune Responses Elicited by a Hybrid Adjuvant Based on β-Glucan Particles from Yeast for the Hepatitis B Vaccine. ACS APPLIED BIO MATERIALS 2021; 4:3614-3622. [PMID: 35014447 DOI: 10.1021/acsabm.1c00111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The use of particulate adjuvants offers an interesting method for enhancing and modulating the immune responses elicited by vaccines. Aluminum salt (Alum) is one of the most important immune adjuvants approved by the Food and Drug Administration for use in humans because of its safety and efficacy, but it lacks the capacity to induce strong cellular and mucosal immune responses. In this study, we designed an antigen delivery system that combines aluminum salts with β-glucan particles. The β-glucan-aluminum particles (GP-Al) exhibited a highly uniform size of 2-4 μm and could highly specifically target antigen-presenting cells (APCs) and strongly induce dendritic cell (DC) maturation and cytokine secretion. In vivo studies showed that both WT mice and HBV-Tg mice immunized with hepatitis B surface antigen (HBsAg)-containing GP-Al displayed high anti-HBsAg IgG titers in the serum. Furthermore, in contrast to mice receiving the antigen alone, mice immunized with the particulate adjuvant exhibited IgG2a antibody titers and higher antigen-specific IFN-γ levels in splenocytes. In conclusion, we developed GP-Al microspheres to serve as a hepatitis B vaccine to enhance both humoral and cellular immune responses, representing a safe and promising system for antigen delivery.
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Affiliation(s)
- Hui Liu
- Henan Key Laboratory of Immunology and Targeted Drug, Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, Henan 453003, China.,State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Ziyu Meng
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China.,NHC Key Laboratory of Hormones and Development, Tianjin Key Laboratory of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300134, China
| | - Hesuiyuan Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Shuo Zhang
- Henan Key Laboratory of Immunology and Targeted Drug, Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Zhen Huang
- Henan Key Laboratory of Immunology and Targeted Drug, Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Xiaofang Geng
- Henan Key Laboratory of Immunology and Targeted Drug, Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Rui Guo
- College of Biomedical Engineering, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Zhenzhou Wu
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Zhangyong Hong
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, China
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13
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Looi CK, Hii LW, Chung FFL, Mai CW, Lim WM, Leong CO. Roles of Inflammasomes in Epstein-Barr Virus-Associated Nasopharyngeal Cancer. Cancers (Basel) 2021; 13:1786. [PMID: 33918087 PMCID: PMC8069343 DOI: 10.3390/cancers13081786] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/08/2021] [Accepted: 03/08/2021] [Indexed: 02/05/2023] Open
Abstract
Epstein-Barr virus (EBV) infection is recognised as one of the causative agents in most nasopharyngeal carcinoma (NPC) cases. Expression of EBV viral antigens can induce host's antiviral immune response by activating the inflammasomes to produce pro-inflammatory cytokines, such as interleukin-1β (IL-1β) and IL-18. These cytokines are known to be detrimental to a wide range of virus-infected cells, in which they can activate an inflammatory cell death program, called pyroptosis. However, aberrant inflammasome activation and production of its downstream cytokines lead to chronic inflammation that may contribute to various diseases, including NPC. In this review, we summarise the roles of inflammasomes during viral infection, how EBV evades inflammasome-mediated immune response, and progress into tumourigenesis. The contrasting roles of inflammasomes in cancer, as well as the current therapeutic approaches used in targeting inflammasomes, are also discussed in this review. While the inflammasomes appear to have dual roles in carcinogenesis, there are still many questions that remain unanswered. In particular, the exact molecular mechanism responsible for the regulation of the inflammasomes during carcinogenesis of EBV-associated NPC has not been explored thoroughly. Furthermore, the current practical application of inflammasome inhibitors is limited to specific tumour types, hence, further studies are warranted to discover the potential of targeting the inflammasomes for the treatment of NPC.
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Affiliation(s)
- Chin King Looi
- School of Postgraduate Studies, International Medical University, Kuala Lumpur 57000, Malaysia; (C.K.L.); (L.-W.H.)
- Center for Cancer and Stem Cell Research, Institute for Research, Development and Innovation (IRDI), International Medical University, Kuala Lumpur 57000, Malaysia; (C.-W.M.); (W.-M.L.)
| | - Ling-Wei Hii
- School of Postgraduate Studies, International Medical University, Kuala Lumpur 57000, Malaysia; (C.K.L.); (L.-W.H.)
- Center for Cancer and Stem Cell Research, Institute for Research, Development and Innovation (IRDI), International Medical University, Kuala Lumpur 57000, Malaysia; (C.-W.M.); (W.-M.L.)
- School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia
| | - Felicia Fei-Lei Chung
- Mechanisms of Carcinogenesis Section (MCA), Epigenetics Group (EGE), International Agency for Research on Cancer World Health Organisation, CEDEX 08 Lyon, France;
| | - Chun-Wai Mai
- Center for Cancer and Stem Cell Research, Institute for Research, Development and Innovation (IRDI), International Medical University, Kuala Lumpur 57000, Malaysia; (C.-W.M.); (W.-M.L.)
- State Key Laboratory of Oncogenes and Related Genes, Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Wei-Meng Lim
- Center for Cancer and Stem Cell Research, Institute for Research, Development and Innovation (IRDI), International Medical University, Kuala Lumpur 57000, Malaysia; (C.-W.M.); (W.-M.L.)
- School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia
| | - Chee-Onn Leong
- Center for Cancer and Stem Cell Research, Institute for Research, Development and Innovation (IRDI), International Medical University, Kuala Lumpur 57000, Malaysia; (C.-W.M.); (W.-M.L.)
- School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia
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14
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Picard E, Bowdish DME, McElhaney JE, Pawelec G, Loeb M, Verschoor CP. The frequency of interleukin-1β-producing monocytes is significantly associated with varicella-zoster responses of nursing home residents. Clin Exp Immunol 2021; 205:63-74. [PMID: 33714219 DOI: 10.1111/cei.13593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/26/2021] [Accepted: 02/27/2021] [Indexed: 10/21/2022] Open
Abstract
Previous studies have demonstrated that the status of the T cell compartment and inflammation-related factors are associated with the immunogenicity of the varicella-zoster virus (VZV) vaccine in older adults; however, little is known about the roles of other immune cell subsets known to influence the generation and maintenance of immunological memory. Responses to a live-attenuated VZV vaccine were studied in relation to peripheral blood mononuclear cell (PBMC) composition and function in a sample of 30 nursing home residents (aged 80-99 years). Interferon-gamma enzyme-linked immunospot (ELISPOT) was used to measure VZV responses at baseline and 6 weeks following vaccination, and associations were sought with the frequencies of monocytes and T, B and natural killer (NK) cells and the production and secretion of cytokines following their ex-vivo stimulation with different agents. While only the frequency of interleukin (IL)-6+ CD14+ monocytes was inversely associated with post-vaccination VZV response, amounts of IL-1β, IL-10, IL-17A and tumour necrosis factor (TNF) secreted by PBMCs and the frequency of IL-1β+ CD14+ monocytes was positively correlated with pre-vaccination VZV response. Furthermore, both bivariate correlation and causal mediation analyses supported the notion that IL-1β+ CD14+ monocytes were significant mediators of the associations between IL-1β and TNF secretion by PBMCs and pre-vaccination VZV responses. Our findings implicate a strong cytokine response mediated by inflammatory IL-1β+ monocytes in coordinating responses of long-lived VZV-reactive memory T cells, but with an opposing effect of IL-6+ CD14+ monocytes. Whether monocyte status promotes or inhibits the induction and/or maintenance of these memory T cells later in life has yet to be determined.
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Affiliation(s)
- E Picard
- Health Sciences North Research Institute, Sudbury, ON, Canada
| | - D M E Bowdish
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - J E McElhaney
- Health Sciences North Research Institute, Sudbury, ON, Canada.,Northern Ontario School of Medicine, Sudbury, ON, Canada
| | - G Pawelec
- Health Sciences North Research Institute, Sudbury, ON, Canada.,Department of Immunology, University of Tübingen, Tübingen, Germany
| | - M Loeb
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - C P Verschoor
- Health Sciences North Research Institute, Sudbury, ON, Canada.,Northern Ontario School of Medicine, Sudbury, ON, Canada
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15
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Lee HJ, Cho HE, Park HJ. Germinated black soybean fermented with Lactobacillus pentosus SC65 alleviates DNFB-induced delayed-type hypersensitivity in C57BL/6N mice. JOURNAL OF ETHNOPHARMACOLOGY 2021; 265:113236. [PMID: 32750462 DOI: 10.1016/j.jep.2020.113236] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 07/23/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Rhynchosia nulubilis (black soybean) has many applications in oriental medicine. It is traditionally used to treat disease related with high blood pressure, diabetes, inflammation, and osteoporosis. Furthermore, fermented soybean foods have traditionally been used for immunity enhancement in East Asia. However, the anti-inflammatory effects of germinated R. nulubilis (GR) against delayed-type hypersensitivity (DTH) are not fully understood. AIM OF STUDY This study aimed to investigate the anti-inflammatory effects of germinated Rhynchosia nulubilis (GR) fermented with the lactic acid bacterium Lactobacillus pentosus SC65 (GR-SC65) isolated from pickled burdock. MATERIALS AND METHODS We investigated the effects of GR-SC65 (300 mg/kg/day) on ear thickness and immune cell infiltration in DNFB-induced DTH in mice. We used dexamethasone (3 mg/kg) as a reference drug. Changes in infiltration of CD4+ and CD8+ T cells and NK cells were examined by immunohistochemistry. In addition, we investigated cytokine and chemokine production related to DTH using reverse transcription-polymerase chain reaction. We also investigated DTH-related cytokine production using lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophage cells. RESULTS Two lactic acid bacterial strains (Lactobacillus pentosus SC65 and Pediococcus pentosaceus ON81A) were selected for fermenting GR due to their high 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical-scavenging activity. The total polyphenol contents (TPCs) in GR-SC65 and GR-ON81A were higher than that in unfermented GR (∗∗∗P < 0.001 vs. GR). Content of daidzein, glycitein, and genistein, the deglycosylated form of isoflavonoids, was higher in GR-SC65 than in unfermented GR. The ethanol extracts of GR-SC65 exerted a stronger anti-inflammatory activity than GR by inhibiting pro-inflammatory cytokines, such as tumor necrosis factor (TNF), interleukin-6 (IL-6), and interleukin-1β (IL-1β) in LPS-induced RAW264.7 macrophages. GR-SC65 reduced 1-fluoro-2,4-dinitrofluorobenzene (DNFB)-induced ear swelling and hyperplasia as well as vascular permeability. Fewer infiltrated CD4+ and CD8+ T cells were observed in the ear tissue of the GR-SC65-treated mice than those of the unfermented GR-treated mice. Furthermore, fewer infiltrated NK cells were observed in the GR-SC65 treated mice, than in the GR-treated mice. GR-SC65 significantly diminished the levels of CCL5 and COX-2 mRNAs and increased the level of IL-10 mRNA. CONCLUSIONS These data suggest that GR-SC65 can be used as a health supplement or a prophylactic against delayed-type hypersensitive inflammatory disease.
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Affiliation(s)
- Hye-Ji Lee
- Department of Food Science and Biotechnology, College of BioNano, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, 461-701, Republic of Korea
| | - Ha-Eun Cho
- Department of Food Science and Biotechnology, College of BioNano, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, 461-701, Republic of Korea
| | - Hye-Jin Park
- Department of Food Science and Biotechnology, College of BioNano, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, 461-701, Republic of Korea.
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16
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Lee PH, Tay WC, Sutjipto S, Fong S, Ong SWX, Wei WE, Chan Y, Ling LM, Young BE, Toh MPHS, Renia L, Ng LFP, Leo Y, Lye DC, Lee TH. Associations of viral ribonucleic acid (RNA) shedding patterns with clinical illness and immune responses in Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection. Clin Transl Immunology 2020; 9:e1160. [PMID: 32742654 PMCID: PMC7385430 DOI: 10.1002/cti2.1160] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 06/29/2020] [Accepted: 06/29/2020] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVES A wide range of duration of viral RNA shedding in patients infected with Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has been observed. We aimed to investigate factors associated with prolonged and intermittent viral RNA shedding in a retrospective cohort of symptomatic COVID-19 patients. METHODS Demographic, clinical and laboratory data from hospitalised COVID-19 patients from a single centre with two consecutive negative respiratory reverse transcription-polymerase chain reaction (RT-PCR) results were extracted from electronic medical records. Kaplan-Meier survival curve analysis was used to assess the effect of clinical characteristics on the duration and pattern of shedding. Plasma levels of immune mediators were measured using Luminex multiplex microbead-based immunoassay. RESULTS There were 201 symptomatic patients included. Median age was 49 years (interquartile range 16-61), and 52.2% were male. Median RNA shedding was 14 days (IQR 9-18). Intermittent shedding was observed in 77 (38.3%). We did not identify any factor associated with prolonged or intermittent viral RNA shedding. Duration of shedding was inversely correlated with plasma levels of T-cell cytokines IL-1β and IL-17A at the initial phase of infection, and patients had lower levels of pro-inflammatory cytokines during intermittent shedding. CONCLUSIONS Less active T-cell responses at the initial phase of infection were associated with prolonged viral RNA shedding, suggesting that early immune responses are beneficial to control viral load and prevent viral RNA shedding. Intermittent shedding is common and may explain re-detection of viral RNA in recovered patients.
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Affiliation(s)
- Pei Hua Lee
- National Centre for Infectious DiseasesSingapore
- Tan Tock Seng HospitalSingapore
| | | | - Stephanie Sutjipto
- National Centre for Infectious DiseasesSingapore
- Tan Tock Seng HospitalSingapore
| | - Siew‐Wai Fong
- Singapore Immunology NetworkAgency for Science, Technology and ResearchSingapore
- Department of Biological SciencesNational University of SingaporeSingapore
| | - Sean Wei Xiang Ong
- National Centre for Infectious DiseasesSingapore
- Tan Tock Seng HospitalSingapore
| | | | - Yi‐Hao Chan
- Singapore Immunology NetworkAgency for Science, Technology and ResearchSingapore
| | - Li Min Ling
- National Centre for Infectious DiseasesSingapore
- Tan Tock Seng HospitalSingapore
| | - Barnaby E Young
- National Centre for Infectious DiseasesSingapore
- Tan Tock Seng HospitalSingapore
- Lee Kong Chian School of MedicineSingapore
| | - Matthias Paul HS Toh
- National Centre for Infectious DiseasesSingapore
- Saw Swee Hock School of Public HealthSingapore
| | - Laurent Renia
- Singapore Immunology NetworkAgency for Science, Technology and ResearchSingapore
| | - Lisa FP Ng
- Singapore Immunology NetworkAgency for Science, Technology and ResearchSingapore
- Institute of Infection, Veterinary and Ecological SciencesUniversity of LiverpoolLiverpoolUK
| | - Yee‐Sin Leo
- National Centre for Infectious DiseasesSingapore
- Tan Tock Seng HospitalSingapore
- Lee Kong Chian School of MedicineSingapore
- Saw Swee Hock School of Public HealthSingapore
- Yong Loo Lin School of MedicineSingapore
| | - David C Lye
- National Centre for Infectious DiseasesSingapore
- Tan Tock Seng HospitalSingapore
- Lee Kong Chian School of MedicineSingapore
- Yong Loo Lin School of MedicineSingapore
| | - Tau Hong Lee
- National Centre for Infectious DiseasesSingapore
- Tan Tock Seng HospitalSingapore
- Lee Kong Chian School of MedicineSingapore
- Yong Loo Lin School of MedicineSingapore
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17
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Gu BH, Choi JC, Shen YH, Song LZ, Scheurer ME, Luong A, Rodriguez A, Woodruff P, Koth L, Corry DB, Kheradmand F, LeMaire SA. Elastin-Specific Autoimmunity in Smokers With Thoracic Aortic Aneurysm and Dissection is Independent of Chronic Obstructive Pulmonary Disease. J Am Heart Assoc 2020; 8:e011671. [PMID: 30957625 PMCID: PMC6507218 DOI: 10.1161/jaha.118.011671] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Background Thoracic aortic aneurysm ( TAA ) and dissection ( TAD ) are characterized by progressive disorganization of the aortic wall matrix, including elastin, a highly immunogenic molecule. Whether acquired autoimmune responses can be detected in TAA / TAD patients who are smokers is unknown. The objectives of this study were to determine whether TAA / TAD smokers have increased T-cell responses to human elastin fragments, and to determine whether autoimmune responses in TAA / TAD smokers are dependent on chronic obstructive pulmonary disease. Methods and Results In a cross-sectional study (N=86), we examined peripheral blood CD 4+ T cell responses to elastin fragments in never-, former-, or current-smokers with or without TAA / TAD . CD 4+ T cells were co-cultured with irradiated autologous peripheral blood CD 1a+/ CD 14+ antigen presenting cells pulsed with or without elastin fragments to measure cytokine production. Baseline plasma concentration of anti-elastin antibodies and elastin-degrading enzymes (eg, matrix metalloproteinase-9, and -12, and neutrophil elastase) were measured in the same cohort. elastin fragment-specific CD 4+ T cell expression of interferon-γ, and anti-elastin antibodies were dependent on history of smoking in TAA / TAD patients but were independent of chronic obstructive pulmonary disease. Matrix metalloproteinase-9, and -12, and neutrophil elastase plasma concentrations were also significantly elevated in ever-smokers with TAA / TAD . Conclusions Cigarette smoke is associated with loss of self-tolerance and induction of elastin-specific autoreactive T- and B-cell responses in patients with TAA / TAD . Development of peripheral blood biomarkers to track immunity to self-antigens could be used to identify and potentially prognosticate susceptibility to TAA / TAD in smokers.
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Affiliation(s)
- Bon-Hee Gu
- 1 Department of Medicine, Pulmonary and Critical Care Baylor College of Medicine Houston TX
| | - Justin C Choi
- 2 Division of Cardiothoracic Surgery Michael E. DeBakey Department of Surgery Baylor College of Medicine Houston TX
| | - Ying H Shen
- 2 Division of Cardiothoracic Surgery Michael E. DeBakey Department of Surgery Baylor College of Medicine Houston TX.,3 Cardiovascular Research Institute Baylor College of Medicine Houston TX.,7 Department of Cardiovascular Surgery Texas Heart Institute Houston TX
| | - Li-Zhen Song
- 1 Department of Medicine, Pulmonary and Critical Care Baylor College of Medicine Houston TX
| | - Michael E Scheurer
- 4 Section of Hematology-Oncology Department of Pediatrics Baylor College of Medicine Houston TX
| | - Amber Luong
- 8 Department of Otorhinolaryngology - Head and Neck Surgery McGovern Medical School University of Texas Health Science Center Houston TX
| | - Antony Rodriguez
- 1 Department of Medicine, Pulmonary and Critical Care Baylor College of Medicine Houston TX.,5 Departments of Pathology and Immunology Baylor College of Medicine Houston TX.,6 Biology of Inflammation Center Baylor College of Medicine Houston TX
| | | | - Laura Koth
- 9 University of California San Francisco San Francisco CA
| | - David B Corry
- 1 Department of Medicine, Pulmonary and Critical Care Baylor College of Medicine Houston TX.,5 Departments of Pathology and Immunology Baylor College of Medicine Houston TX.,6 Biology of Inflammation Center Baylor College of Medicine Houston TX.,10 Center for Translational Research in Inflammatory Diseases Michael E. DeBakey VA Houston TX
| | - Farrah Kheradmand
- 1 Department of Medicine, Pulmonary and Critical Care Baylor College of Medicine Houston TX.,3 Cardiovascular Research Institute Baylor College of Medicine Houston TX.,5 Departments of Pathology and Immunology Baylor College of Medicine Houston TX.,6 Biology of Inflammation Center Baylor College of Medicine Houston TX.,10 Center for Translational Research in Inflammatory Diseases Michael E. DeBakey VA Houston TX
| | - Scott A LeMaire
- 2 Division of Cardiothoracic Surgery Michael E. DeBakey Department of Surgery Baylor College of Medicine Houston TX.,7 Department of Cardiovascular Surgery Texas Heart Institute Houston TX.,11 CHI St Luke's Health-Baylor St Luke's Medical Center Houston TX
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18
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Papagno L, Kuse N, Lissina A, Gostick E, Price DA, Appay V, Nicoli F. The TLR9 ligand CpG ODN 2006 is a poor adjuvant for the induction of de novo CD8 + T-cell responses in vitro. Sci Rep 2020; 10:11620. [PMID: 32669577 PMCID: PMC7363897 DOI: 10.1038/s41598-020-67704-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 06/05/2020] [Indexed: 01/21/2023] Open
Abstract
Toll-like receptor 9 (TLR9) agonists have gained traction in recent years as potential adjuvants for the induction of adaptive immune responses. It has nonetheless remained unclear to what extent such ligands can facilitate the priming events that generate antigen-specific effector and/or memory CD8+ T-cell populations. We used an established in vitro model to prime naive precursors from human peripheral blood mononuclear cells in the presence of various adjuvants, including CpG ODN 2006, a synthetic oligonucleotide TLR9 ligand (TLR9L). Unexpectedly, we found that TLR9L induced a suboptimal inflammatory milieu and promoted the antigen-driven expansion and functional maturation of naive CD8+ T cells ineffectively compared with either ssRNA40 or 2'3'-cGAMP, which activate other pattern recognition receptors (PRRs). TLR9L also inhibited the priming efficacy of 2'3'-cGAMP. Collectively, these results suggest that TLR9L is unlikely to be a good candidate for the optimal induction of de novo CD8+ T-cell responses, in contrast to adjuvants that operate via discrete PRRs.
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Affiliation(s)
- Laura Papagno
- Centre d'Immunologie et des Maladies Infectieuses, Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, 75013, Paris, France
| | - Nozomi Kuse
- Center for AIDS Research, Kumamoto University, Kumamoto, 860-0811, Japan
| | - Anna Lissina
- Centre d'Immunologie et des Maladies Infectieuses, Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, 75013, Paris, France
| | - Emma Gostick
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, CF14 4XN, UK
| | - David A Price
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, CF14 4XN, UK
| | - Victor Appay
- Centre d'Immunologie et des Maladies Infectieuses, Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, 75013, Paris, France.
- International Research Center of Medical Sciences, Kumamoto University, Kumamoto, 860-0811, Japan.
| | - Francesco Nicoli
- Centre d'Immunologie et des Maladies Infectieuses, Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, 75013, Paris, France.
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, 44121, Ferrara, Italy.
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Brune Z, Rice MR, Barnes BJ. Potential T Cell-Intrinsic Regulatory Roles for IRF5 via Cytokine Modulation in T Helper Subset Differentiation and Function. Front Immunol 2020; 11:1143. [PMID: 32582209 PMCID: PMC7283537 DOI: 10.3389/fimmu.2020.01143] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 05/11/2020] [Indexed: 12/24/2022] Open
Abstract
Interferon Regulatory Factor 5 (IRF5) is one of nine members of the IRF family of transcription factors. Although initially discovered as a key regulator of the type I interferon and pro-inflammatory cytokine arm of the innate immune response, IRF5 has now been found to also mediate pathways involved in cell growth and differentiation, apoptosis, metabolic homeostasis and tumor suppression. Hyperactivation of IRF5 has been implicated in numerous autoimmune diseases, chief among them systemic lupus erythematosus (SLE). SLE is a heterogeneous autoimmune disease in which patients often share similar characteristics in terms of autoantibody production and strong genetic risk factors, yet also possess unique disease signatures. IRF5 pathogenic alleles contribute one of the strongest risk factors for SLE disease development. Multiple models of murine lupus have shown that loss of Irf5 is protective against disease development. In an attempt to elucidate the regulatory role(s) of IRF5 in driving SLE pathogenesis, labs have begun to examine the function of IRF5 in several immune cell types, including B cells, macrophages, and dendritic cells. A somewhat untouched area of research on IRF5 is in T cells, even though Irf5 knockout mice were reported to have skewing of T cell subsets from T helper 1 (Th1) and T helper 17 (Th17) toward T helper 2 (Th2), indicating a potential role for IRF5 in T cell regulation. However, most studies attributed this T cell phenotype in Irf5 knockout mice to dysregulation of antigen presenting cell function rather than an intrinsic role for IRF5 in T cells. In this review, we offer a different interpretation of the literature. The role of IRF5 in T cells, specifically its control of T cell effector polarization and the resultant T cell-mediated cytokine production, has yet to be elucidated. A strong understanding of the regulatory role(s) of this key transcription factor in T cells is necessary for us to grasp the full picture of the complex pathogenesis of autoimmune diseases like SLE.
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Affiliation(s)
- Zarina Brune
- Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, United States
- Center for Autoimmune Musculoskeletal and Hematopoietic Diseases, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
| | - Matthew R. Rice
- Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, United States
- Center for Autoimmune Musculoskeletal and Hematopoietic Diseases, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
| | - Betsy J. Barnes
- Center for Autoimmune Musculoskeletal and Hematopoietic Diseases, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Departments of Molecular Medicine and Pediatrics, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, United States
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20
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Wadé NB, Chang CM, Conti D, Millstein J, Skibola C, Nieters A, Wang SS, De Sanjose S, Kane E, Spinelli JJ, Bracci P, Zhang Y, Slager S, Wang J, Hjalgrim H, Smedby KE, Brown EE, Jarrett RF, Cozen W. Infectious mononucleosis, immune genotypes, and non-Hodgkin lymphoma (NHL): an InterLymph Consortium study. Cancer Causes Control 2020; 31:451-462. [PMID: 32124188 PMCID: PMC7534692 DOI: 10.1007/s10552-020-01266-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 01/03/2020] [Indexed: 01/07/2023]
Abstract
PURPOSE We explored the interaction between non-Hodgkin lymphoma (NHL), infectious mononucleosis (IM) history, and immune-related genotypes in a pooled case-control analysis. METHODS A total of 7,926 NHL patients and 10,018 controls from 12 case-control studies were included. Studies were conducted during various time periods between 1988 and 2008, and participants were 17-96 years of age at the time of ascertainment/recruitment. Self-reported IM history and immune response genotypes were provided by the InterLymph Data Coordinating Center at Mayo Clinic. Odds ratios (OR) were estimated using multivariate logistic regression, and interactions were estimated using the empirical Bayes method. PACT was used to account for multiple comparisons. RESULTS There was evidence of an interaction effect between IM history and two variants on T-cell lymphoma (TCL) risk: rs1143627 in interleukin-1B (IL1B) (pinteraction = 0.04, ORinteraction = 0.09, 95% confidence interval [CI] 0.01, 0.87) and rs1800797 in interleukin-6 (IL6) (pinteraction = 0.03, ORinteraction = 0.08, 95% CI 0.01, 0.80). Neither interaction effect withstood adjustment for multiple comparisons. There were no statistically significant interactions between immune response genotypes and IM on other NHL subtypes. CONCLUSIONS Genetic risk variants in IL1B and IL6 may affect the association between IM and TCL, possibly by influencing T-cell activation, growth, and differentiation in the presence of IM, thereby decreasing risk of immune cell proliferation.
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Affiliation(s)
- Niquelle Brown Wadé
- Department of Preventive Medicine, Center for Genetic Epidemiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- Cigna Health and Life Insurance Company (Cigna), Bloomfield, CT, USA
| | - Cindy M Chang
- Division of Population Health Sciences, Center for Tobacco Products, Food and Drug Administration, Bethesda, MD, USA
| | - David Conti
- Department of Preventive Medicine, Center for Genetic Epidemiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Joshua Millstein
- Department of Preventive Medicine, Center for Genetic Epidemiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Christine Skibola
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA, USA
| | - Alexandra Nieters
- Center for Chronic Immunodeficiency (CCI), University Medical Center Freiburg, University of Freiburg, Freiburg, Germany
| | - Sophia S Wang
- Department of Computational and Quantitative Medicine, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Silvia De Sanjose
- Sexual and Reproductive Health, PATH, Seattle, WA, USA
- Centro de Investigación Biomédica en Red: Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Eleanor Kane
- Department of Health Sciences, University of York, York, YO10 5DD, UK
| | - John J Spinelli
- Population Oncology, BC Cancer Agency, Vancouver, Canada
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Paige Bracci
- Department of Epidemiology and Biostatistics, University of California at San Francisco, San Francisco, CA, USA
| | - Yawei Zhang
- Department of Surgery, Yale School of Medicine and Yale School of Public Health, New Haven, CT, USA
| | - Susan Slager
- Department of Epidemiology, Mayo Clinic, Rochester, MN, USA
| | - Jun Wang
- Department of Preventive Medicine, Center for Genetic Epidemiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
- USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Henrik Hjalgrim
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
- Department of Haematology, Rigshospitalet, Copenhagen, Denmark
| | - Karin Ekstrom Smedby
- Karolinska Institutet, Sweden University Hospital, Karolinska University, Stockholm, Sweden
| | - Elizabeth E Brown
- Department of Pathology, O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Ruth F Jarrett
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland
| | - Wendy Cozen
- Department of Preventive Medicine, Center for Genetic Epidemiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
- USC Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA.
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T Cell Proliferation Is Induced by Chronically TLR2-Stimulated Gingival Fibroblasts or Monocytes. Int J Mol Sci 2019; 20:ijms20246134. [PMID: 31817424 PMCID: PMC6940768 DOI: 10.3390/ijms20246134] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/02/2019] [Accepted: 12/03/2019] [Indexed: 12/14/2022] Open
Abstract
During inflammation of the gums, resident cells of the periodontium, gingival fibroblasts (GFs), interact with heterogeneous cell populations of the innate and adaptive immune system that play a crucial role in protecting the host from pathogenic infectious agents. We investigated the effects of chronic inflammation, by exposing peripheral blood mononuclear cells (PBMCs), peripheral blood lymphocyte (PBL) cultures, and GF–PBMC cocultures to Toll-like receptor 2 (TLR2) and TLR4 activators for 21 days and assessed whether this influenced leukocyte retention, survival, and proliferation. Chronic stimulation of PBMC–GF cocultures with TLR2 and TLR4 agonists induced a reduction of NK (CD56+CD3−), T (CD3+), and B (CD19+) cells, whereas the number of TLR-expressing monocytes were unaffected. TLR2 agonists doubled the T cell proliferation, likely of a selective population, given the net decrease of T cells. Subsequent chronic exposure experiments without GF, using PBMC and PBL cultures, showed a significantly (p < 0.0001) increased proinflammatory cytokine production of TNF-α and IL-1β up to 21 days only in TLR2-activated PBMC with concomitant T cell proliferation, suggesting a role for monocytes. In conclusion, chronic TLR activation mediates the shift in cell populations during infection. Particularly, TLR2 activators play an important role in T cell proliferation and proinflammatory cytokine production by monocytes, suggesting that TLR2 activation represents a bridge between innate and adaptive immunity.
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22
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Auladell M, Nguyen TH, Garcillán B, Mackay F, Kedzierska K, Fox A. Distinguishing naive- from memory-derived human B cells during acute responses. Clin Transl Immunology 2019; 8:e01090. [PMID: 31844520 PMCID: PMC6851823 DOI: 10.1002/cti2.1090] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 10/22/2019] [Accepted: 10/22/2019] [Indexed: 12/17/2022] Open
Abstract
Objectives A fundamental question in influenza research is whether antibody titre decline upon successive exposure to variant strains is consequent to recall of cross‐reactive memory B cells that competitively inhibit naive B‐cell responses. In connection, it is not clear whether naive and memory B cells remain phenotypically distinct acutely after activation such that they may be distinguished ex vivo. Methods Here, we first compared the capacity of anti‐Ig and Toll‐like‐receptor (TLR) 7/8 and TLR9 agonists (R848 and CpG) to augment human B‐cell differentiation induced by IL‐21 and sCD40L. The conditions that induced optimal differentiation were then used to compare the post‐activation phenotype of sort‐purified naive and memory B‐cell subsets by FACS and antibody‐secreting cell (ASC) ELISPOT. Results Sort‐purified naive and memory B cells underwent robust plasmablast and ASC formation when stimulated with R848, but not CpG, and co‐cultured with monocytes. This coincided with increased IL‐1β and IL‐6 production when B cells were co‐cultured with monocytes and stimulated with R848, but not CpG. Naive B cells underwent equivalent ASC generation, but exhibited less class‐switch and modulation of CD27, CD38 and CD20 expression than memory B cells after stimulation with R848 and monocytes for 6 days. Conclusion Stimulation with R848, IL‐21 and sCD40L in the presence of monocytes induces robust differentiation and ASC generation from both naive and memory B‐cells. However, naive and memory B cells retain key phenotypic differences after activation that may facilitate ex vivo discrimination and better characterisation of acute responses to variant antigens.
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Affiliation(s)
- Maria Auladell
- Department of Microbiology and Immunology University of Melbourne at the Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia
| | - Thi Ho Nguyen
- Department of Microbiology and Immunology University of Melbourne at the Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia
| | - Beatriz Garcillán
- Department of Microbiology and Immunology University of Melbourne at the Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia
| | - Fabienne Mackay
- Department of Microbiology and Immunology University of Melbourne at the Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia
| | - Katherine Kedzierska
- Department of Microbiology and Immunology University of Melbourne at the Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia
| | - Annette Fox
- WHO Collaborating Centre for Reference and Research on Influenza VIDRL at the Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia
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23
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Losada-Barragán M, Umaña-Pérez A, Rodriguez-Vega A, Cuervo-Escobar S, Azevedo R, Morgado FN, de Frias Carvalho V, Aquino P, Carvalho PC, Porrozzi R, Sánchez-Gómez M, Padron G, Cuervo P. Proteomic profiling of splenic interstitial fluid of malnourished mice infected with Leishmania infantum reveals defects on cell proliferation and pro-inflammatory response. J Proteomics 2019; 208:103492. [DOI: 10.1016/j.jprot.2019.103492] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 08/14/2019] [Accepted: 08/16/2019] [Indexed: 12/31/2022]
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Ju JH, Shin JI, Lim HY, Kim HW, Seung BJ, Cho SH, Kim SH, Sur JH. Classification, bacteriological findings, and analysis of sex hormone receptors and cytokine expression in mammary lesions of abattoir sows. J Vet Sci 2019; 20:e11. [PMID: 30944534 PMCID: PMC6441806 DOI: 10.4142/jvs.2019.20.e11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 01/08/2019] [Accepted: 02/23/2019] [Indexed: 12/19/2022] Open
Abstract
Mammary lesions in sows can prevent suckling piglets from consuming colostrum that provides fundamental nutrients and protective immunity. Although mammary gross lesions are frequently found in sows at farms or slaughterhouses, with the exception of mastitis, they have received little research attention. In this study, we investigated mammary lesions observed in South Korean sows between 2015 and 2016. Mammary tissue samples of 82 sows showing gross lesions during meat inspection were histologically classified and immunohistochemical analysis was conducted to assess the expression of estrogen receptor (ER)-α, ER-β, and progesterone receptor (PR) for mammary hyperplastic lesions as well as that of cluster of differentiation (CD) 3, CD79a, interleukin (IL)-1α, IL-1β, IL-6, and IL-8 for mastitis. Furthermore, 20 swab samples were cultured, and the isolated bacteria were identified using polymerase chain reactions for 16S ribosomal RNA genes. The lesions were classified as hyperplasia, mastitis, or hyperplasia with mastitis. Immunohistochemistry results revealed that there was neither expression of ER-α nor of ER-β, but all examined hyperplastic samples expressed PR. In addition, there was a significant correlation between CD3 and IL-1β expressions, as well as between IL-1β and IL-6 expressions. Regarding the identity of the isolated bacteria, Pseudomonas spp. were most frequently detected. The results of this study have revealed the incidence and characteristics of porcine mammary lesions.
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Affiliation(s)
- Jung-Hyung Ju
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Jong-Il Shin
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Ha-Young Lim
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Hyun-Woo Kim
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Byung-Joon Seung
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Seung-Hee Cho
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Soo-Hyeon Kim
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
| | - Jung-Hyang Sur
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, College of Veterinary Medicine, Konkuk University, Seoul 05029, Korea
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25
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Stevens KE, Thio CL, Osburn WO. CCR5 deficiency enhances hepatic innate immune cell recruitment and inflammation in a murine model of acute hepatitis B infection. Immunol Cell Biol 2019; 97:317-325. [PMID: 30536991 DOI: 10.1111/imcb.12221] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 12/04/2018] [Accepted: 12/04/2018] [Indexed: 01/12/2023]
Abstract
Human genetic studies demonstrate a link between the 32-bp deletion that produces a nonfunctional CCR5 receptor and enhanced recovery from acute hepatitis B virus (HBV) infection. To investigate the role of CCR5 in immune responses to acute HBV, we intravenously infected Ccr5+/+ (WT) and Ccr5-/- (KO) mice with a replication-incompetent adenovirus containing the overlapping HBV1.3 construct (AdHBV), or vector control. At day 3 following AdHBV infection, analysis of intrahepatic leukocytes (IHL) showed KO mice had increased CD11b+ NK cells compared to WT (18.2% versus 7.6% of live IHL, P < 0.01). These CD11b+ NK cells were nonresident (CD49a- ) and had capacity to degranulate and produce IFN-γ following stimulation. At day 3, plasma CXCL10 was significantly increased in KO, but not WT, mice receiving AdHBV as compared to vector control, while CXCR3 expression on hepatic CD11b+ NK cells in AdHBV-treated KO mice was significantly lower than that in uninfected mice, suggesting these NK cells are recruited along the CXCL10-CXCR3 axis. At days 7 and 14, no differences between genotypes were observed in number, or HBV-specific function, of intrahepatic CD8+ T cells. Instead, at day 14, KO mice had increased intrahepatic proinflammatory monocytes compared to WT mice (17.56% versus 6.57% of live IHL, P = 0.014), corresponding with an increase in plasma alanine aminotransferase and intrahepatic IL-1β observed in KO mice. Taken together, these findings demonstrate that loss of CCR5 signaling drives a more robust inflammatory liver microenvironment early in acute HBV infection via enrichment of hepatic innate immune cells.
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Affiliation(s)
- Kathleen E Stevens
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Chloe L Thio
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.,Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - William O Osburn
- Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Gunawardana T, Ahmed KA, Goonewardene K, Popowich S, Kurukulasuriya S, Karunarathna R, Gupta A, Lockerbie B, Foldvari M, Tikoo SK, Willson P, Gomis S. Synthetic CpG-ODN rapidly enriches immune compartments in neonatal chicks to induce protective immunity against bacterial infections. Sci Rep 2019; 9:341. [PMID: 30674918 PMCID: PMC6344490 DOI: 10.1038/s41598-018-36588-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 11/19/2018] [Indexed: 12/13/2022] Open
Abstract
Oligodeoxynucleotides containing CpG motifs (CpG-ODN) induce innate immunity against bacterial infections. Despite recent advances, how CpG-ODN alone protects against bacterial infections remained elusive. Here, we report for the first time, to our knowledge, that CpG-ODN orchestrates anti-microbial protective immunity by inducing a rapid enrichment of various immune compartments in chickens. In this study, eighteen-day-old embryonated eggs were injected with either 50 µg of CpG-ODN or saline (~n = 90 per group). In the first experiment, four days after CpG-ODN treatment, chicks were challenged subcutaneously with a virulent strain of Escherichia coli (E. coli) and mortality was monitored for 8 days. We found significant protection, and reduced clinical scores in CpG-ODN treated chicks. To gain insights into mechanisms of protection induced by CpG-ODN, first we investigated cytokine expression kinetics elicited by CpG-ODN. The spleen and lung were collected from embryos or chicks (n = 3-4 per group) at 10 time points post-CpG-ODN inoculation. Multiplex gene analysis (interleukin (IL)-1, IL-4, IL-6, IL-10, IL-18, interferon (IFN)-γ, IFN-α, and lipopolysaccharide induced tumor necrosis factor (LITAF), revealed a significantly higher expression of pro-inflammatory cytokines following CpG-ODN treatment compared to the saline controls. In our study, LITAF stands out in the cytokine profiles of spleen and lungs, underscoring its role in CpG-ODN-induced protection. The third experiment was designed to examine the effects of CpG-ODN on immune cell populations in spleen, lungs, and thymus. Flow cytometry analysis was conducted at 24, 48 and 72 hrs (thymus only collected at 72 hr) after CpG-ODN administration to examine the changes in CD4+ and CD8+ T-cell subsets, monocyte/macrophage cell populations and their expression of maturation markers (CD40 and CD86). Flow cytometry data indicated a significant enrichment of macrophages, CD4+ and CD8+ T-cell subsets in both spleen and lungs of CpG-ODN treated embryos and chicks. Macrophages in spleen and lungs showed an upregulation of CD40 but not CD86, whereas thymocytes revealed significantly high CD4 and CD8 expression. Overall, the present study has demonstrated that CpG-ODN provides protection in neonatal chicks against E. coli infection not only by eliciting cytokine responses and stimulating immune cells but also through enriching immunological niches in spleen and lungs.
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Affiliation(s)
- Thushari Gunawardana
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, S7N 5B4, Canada
| | - Khawaja Ashfaque Ahmed
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, S7N 5B4, Canada.
| | - Kalhari Goonewardene
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, S7N 5B4, Canada
| | - Shelly Popowich
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, S7N 5B4, Canada
| | - Shanika Kurukulasuriya
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, S7N 5B4, Canada
| | - Ruwani Karunarathna
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, S7N 5B4, Canada
| | - Ashish Gupta
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, S7N 5B4, Canada
| | - Betty Lockerbie
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, S7N 5B4, Canada
| | - Marianna Foldvari
- School of Pharmacy, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
| | - Suresh K Tikoo
- Vaccinology and Immunotherapy, School of Public Health, University of Saskatchewan, Saskatoon, SK, S7N 5E3, Canada
| | - Philip Willson
- Canadian Centre for Health and Safety in Agriculture, University of Saskatchewan, Saskatoon, SK, S7N 5E5, Canada
| | - Susantha Gomis
- Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, S7N 5B4, Canada.
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27
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Liu H, Jia Z, Yang C, Song M, Jing Z, Zhao Y, Wu Z, Zhao L, Wei D, Yin Z, Hong Z. Aluminum hydroxide colloid vaccine encapsulated in yeast shells with enhanced humoral and cellular immune responses. Biomaterials 2018; 167:32-43. [PMID: 29554479 DOI: 10.1016/j.biomaterials.2018.03.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 03/04/2018] [Accepted: 03/11/2018] [Indexed: 12/30/2022]
Abstract
Aluminum salt (Alum) is one of the most important immune adjuvants approved for use in humans, however it is not suitable for vaccination against various chronic infectious diseases and cancers for not being able to induce cell-mediated (Th1) immunity. Here, we encapsulated an Alum colloid inside β-glucan particles (GPs), which are a type of natural particles derived from the yeast glucan shells, to prepare hybrid GP-Alum (GP-Al) adjuvant particles with a very uniform size of 2-4 μm. These hybrid particles can be used to load antigen proteins through a simple mixing procedure, and can be highly specifically targeted to antigen-presenting cells (APCs) and strongly activate dendritic cells (DCs) maturation and cytokine secretion. In an animal model, they elicit a strong Th1-biased immune response and extremely high antibody titer, and cause marked prophylactic and therapeutic effects against tumors. As Alum has been proven to be a safe adjuvant to induce strong humoral responses and β-glucans are safe for human use, this very uniform hybrid Alum particulate system could have important application as a vaccine carrier to stimulate humoral and cellular immune responses at the same time.
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Affiliation(s)
- Hui Liu
- State Key Laboratory of Medicinal Chemical Biology & Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Zhenghu Jia
- State Key Laboratory of Medicinal Chemical Biology & Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Chengmao Yang
- State Key Laboratory of Medicinal Chemical Biology & Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Mei Song
- State Key Laboratory of Medicinal Chemical Biology & Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Zhe Jing
- State Key Laboratory of Medicinal Chemical Biology & Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Yapu Zhao
- People's Liberation Army No. 254 Hospital, Tianjin, 300142, China
| | - Zhenzhou Wu
- State Key Laboratory of Medicinal Chemical Biology & Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Liqing Zhao
- State Key Laboratory of Medicinal Chemical Biology & Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Dongsheng Wei
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China.
| | - Zhinan Yin
- Biomedical Translational Research Institute, Jinan University, Guangzhou, 510632, China.
| | - Zhangyong Hong
- State Key Laboratory of Medicinal Chemical Biology & Tianjin Key Laboratory of Protein Sciences, College of Life Sciences, Nankai University, Tianjin, 300071, China.
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Garza-Cuartero L, O'Sullivan J, Blanco A, McNair J, Welsh M, Flynn RJ, Williams D, Diggle P, Cassidy J, Mulcahy G. Fasciola hepatica infection reduces Mycobacterium bovis burden and mycobacterial uptake and suppresses the pro-inflammatory response. Parasite Immunol 2017; 38:387-402. [PMID: 27108767 PMCID: PMC6680181 DOI: 10.1111/pim.12326] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 04/18/2016] [Indexed: 01/06/2023]
Abstract
Bovine tuberculosis (BTB), caused by Mycobacterium bovis, has an annual incidence in cattle of 0.5% in the Republic of Ireland and 4.7% in the UK, despite long‐standing eradication programmes being in place. Failure to achieve complete eradication is multifactorial, but the limitations of diagnostic tests are significant complicating factors. Previously, we have demonstrated that Fasciola hepatica infection, highly prevalent in these areas, induced reduced sensitivity of the standard diagnostic tests for BTB in animals co‐infected with F. hepatica and M. bovis. This was accompanied by a reduced M. bovis‐specific Th1 immune response. We hypothesized that these changes in co‐infected animals would be accompanied by enhanced growth of M. bovis. However, we show here that mycobacterial burden in cattle is reduced in animals co‐infected with F. hepatica. Furthermore, we demonstrate a lower mycobacterial recovery and uptake in blood monocyte‐derived macrophages (MDM) from F. hepatica‐infected cattle which is associated with suppression of pro‐inflammatory cytokines and a switch to alternative activation of macrophages. However, the cell surface expression of TLR2 and CD14 in MDM from F. hepatica‐infected cattle is increased. These findings reflecting the bystander effect of helminth‐induced downregulation of pro‐inflammatory responses provide insights to understand host‐pathogen interactions in co‐infection.
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Affiliation(s)
- L Garza-Cuartero
- School of Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - J O'Sullivan
- School of Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - A Blanco
- Conway Institute, University College Dublin, Dublin, Ireland
| | - J McNair
- Veterinary Sciences Division, Agri-Food and Biosciences Institute, Belfast, UK
| | - M Welsh
- CSO, SISAF, The Innovation Centre, Belfast, UK
| | - R J Flynn
- School of Veterinary Science, University of Nottingham, Nottingham, UK
| | - D Williams
- Institute of Infection and Global Health, University of Liverpool, Liverpool, UK
| | - P Diggle
- Division of Medicine, Lancaster University, Lancaster, UK
| | - J Cassidy
- School of Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - G Mulcahy
- School of Veterinary Medicine, University College Dublin, Dublin, Ireland.,Conway Institute, University College Dublin, Dublin, Ireland
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29
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Lee DI, Jang SK, Park DW, Kim ST, Park JS, Jo BR, Park JY, Park HY, Joo SS. Diarylheptanoid Hirsutenone Attenuates Osteoclastogenesis by Suppressing IFNγ and NF-κB Signaling in Th1 and Preosteoclastic Cells. Biol Pharm Bull 2017; 40:630-637. [DOI: 10.1248/bpb.b16-00876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Do Ik Lee
- College of Pharmacy, Chung-Ang University
| | - Su Kil Jang
- College of Life Science, Gangneung-Wonju National University
| | - Da Woon Park
- College of Life Science, Gangneung-Wonju National University
| | - Seung Tae Kim
- College of Life Science, Gangneung-Wonju National University
| | - Jun Sub Park
- College of Life Science, Gangneung-Wonju National University
| | - Bo Ram Jo
- College of Life Science, Gangneung-Wonju National University
| | - Jung Youl Park
- Industry-Academic Cooperation Foundation, Hanbat National University
| | | | - Seong Soo Joo
- College of Life Science, Gangneung-Wonju National University
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30
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Wu CY, Hsu WL, Wang CH, Liang JL, Tsai MH, Yen CJ, Li HW, Chiu SJ, Chang CH, Huang YB, Lin MW, Yoshioka T. A Novel Strategy for TNF-Alpha Production by 2-APB Induced Downregulated SOCE and Upregulated HSP70 in O. tsutsugamushi-Infected Human Macrophages. PLoS One 2016; 11:e0159299. [PMID: 27472555 PMCID: PMC4966960 DOI: 10.1371/journal.pone.0159299] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 06/30/2016] [Indexed: 12/20/2022] Open
Abstract
Orientia (O.) tsutsugamushi-induced scrub typhus is endemic across many regions of Asia and the Western Pacific, where an estimated 1 million cases occur each year; the majority of patients infected with O. tsutsugamushi end up with a cytokine storm from a severe inflammatory response. Previous reports have indicated that blocking tumor necrosis factor (TNF)-α reduced cell injury from a cytokine storm. Since TNF-α production is known to be associated with intracellular Ca2+ elevation, we examined the effect of store-operated Ca2+ entry (SOCE) inhibitors on TNF-α production in O. tsutsugamushi-infected macrophages. We found that 2-aminoethoxydiphenyl borate (2-APB), but not SKF96365, facilitates the suppression of Ca2+ mobilization via the interruption of Orai1 expression in O. tsutsugamushi-infected macrophages. Due to the decrease of Ca2+ elevation, the expression of TNF-α and its release from macrophages was repressed by 2-APB. In addition, a novel role of 2-APB was found in macrophages that causes the upregulation of heat shock protein 70 (HSP70) expression associated with ERK activation; upregulated TNF-α production in the case of knockdown HSP70 was inhibited with 2-APB treatment. Furthermore, elevated HSP70 formation unexpectedly did not help the cell survival of O. tsutsugamushi-infected macrophages. In conclusion, the parallelism between downregulated Ca2+ mobilization via SOCE and upregulated HSP70 after treatment with 2-APB against TNF-α production was found to efficiently attenuate an O. tsutsugamushi-induced severe inflammatory response.
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Affiliation(s)
- Ching-Ying Wu
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Dermatology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Wen-Li Hsu
- Lipid Science and Aging Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- The Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | | | | | - Ming-Hsien Tsai
- Lipid Science and Aging Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center for Lipid Biosciences, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-Jung Yen
- Lipid Science and Aging Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsiu-Wen Li
- School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Siou-Jin Chiu
- Institute of Physics, Academia Sinica, Taipei, Taiwan
| | - Chung-Hsing Chang
- Department of Dermatology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yaw-Bin Huang
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center for Stem Cell Research, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Wei Lin
- Center for Stem Cell Research, Kaohsiung Medical University, Kaohsiung, Taiwan
- * E-mail: (TY); (MWL)
| | - Tohru Yoshioka
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Lipid Science and Aging Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- * E-mail: (TY); (MWL)
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31
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Lee HH, Shin JS, Lee WS, Ryu B, Jang DS, Lee KT. Biflorin, Isolated from the Flower Buds of Syzygium aromaticum L., Suppresses LPS-Induced Inflammatory Mediators via STAT1 Inactivation in Macrophages and Protects Mice from Endotoxin Shock. JOURNAL OF NATURAL PRODUCTS 2016; 79:711-720. [PMID: 26977531 DOI: 10.1021/acs.jnatprod.5b00609] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Two chromone C-glucosides, biflorin (1) and isobiflorin (2), were isolated from the flower buds of Syzygium aromaticum L. (Myrtaceae). Here, inhibitory effects of 1 and 2 on lipopolysaccharide (LPS)-induced production of nitric oxide (NO) and prostaglandin E2 (PGE2) in RAW 264.7 macrophages were evaluated, and 1 (IC50 = 51.7 and 37.1 μM, respectively) was more potent than 2 (IC50 > 60 and 46.0 μM). The suppression of NO and PGE2 production by 1 correlated with inhibition of iNOS and COX-2 protein expression. Compound 1 reduced inducible NO synthase (iNOS) and cyclooxygenase-2 (COX-2) mRNA expression via inhibition of their promoter activities. Compound 1 inhibited the LPS-induced production and mRNA expression of tumor necrosis factor-α (TNF-α) and interleukin (IL)-6. Furthermore, 1 reduced p-STAT1 and p-p38 expression but did not affect the activity of nuclear factor κ light-chain enhancer of activated B cells (NF-κB) or activator protein 1 (AP-1). In a mouse model of LPS-induced endotoxemia, 1 reduced the mRNA levels of iNOS, COX-2, and TNF-α, and the phosphorylation-mediated activation of the signal transducer and activator of transcription 1 (STAT1), consequently improving the survival rates of mice. Compound 1 showed a significant anti-inflammatory effect on carrageenan-induced paw edema and croton-oil-induced ear edema in rats. The collective data indicate that the suppression of pro-inflammatory gene expression via p38 mitogen-activated protein kinase and STAT1 inactivation may be a mechanism for the anti-inflammatory activity of 1.
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Affiliation(s)
- Hwi-Ho Lee
- Department of Pharmaceutical Biochemistry, College of Pharmacy, ‡Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, §Reactive Oxygen Species Medical Research Center College of Pharmacy, and ⊥Department of Physiology, School of Medicine, Kyung Hee University , Seoul 130-701, Republic of Korea
| | - Ji-Sun Shin
- Department of Pharmaceutical Biochemistry, College of Pharmacy, ‡Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, §Reactive Oxygen Species Medical Research Center College of Pharmacy, and ⊥Department of Physiology, School of Medicine, Kyung Hee University , Seoul 130-701, Republic of Korea
| | - Woo-Seok Lee
- Department of Pharmaceutical Biochemistry, College of Pharmacy, ‡Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, §Reactive Oxygen Species Medical Research Center College of Pharmacy, and ⊥Department of Physiology, School of Medicine, Kyung Hee University , Seoul 130-701, Republic of Korea
| | - Byeol Ryu
- Department of Pharmaceutical Biochemistry, College of Pharmacy, ‡Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, §Reactive Oxygen Species Medical Research Center College of Pharmacy, and ⊥Department of Physiology, School of Medicine, Kyung Hee University , Seoul 130-701, Republic of Korea
| | - Dae Sik Jang
- Department of Pharmaceutical Biochemistry, College of Pharmacy, ‡Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, §Reactive Oxygen Species Medical Research Center College of Pharmacy, and ⊥Department of Physiology, School of Medicine, Kyung Hee University , Seoul 130-701, Republic of Korea
| | - Kyung-Tae Lee
- Department of Pharmaceutical Biochemistry, College of Pharmacy, ‡Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, §Reactive Oxygen Species Medical Research Center College of Pharmacy, and ⊥Department of Physiology, School of Medicine, Kyung Hee University , Seoul 130-701, Republic of Korea
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32
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Huang T, Zhao K, Zhang Z, Tang C, Zhang X, Yue B. DNA vaccination based on pyolysin co-immunized with IL-1β enhances host antibacterial immunity against Trueperella pyogenes infection. Vaccine 2016; 34:3469-77. [PMID: 27091688 DOI: 10.1016/j.vaccine.2016.04.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 04/07/2016] [Indexed: 10/21/2022]
Abstract
Trueperella pyogenes is a commensal and opportunistic pathogen normally causes mastitis, liver abscesses and pneumonia of economically important livestock. To date, no specific control measure was reported to prevent T. pyogenes infections. In this study, we first constructed a recombinant plasmid pVAX1-PLO based on the main virulent factor pyolysin gene as DNA vaccine against T. pyogenes infection. Subsequently, transient expression of pVAX1-PLO and pcDNA3.1/V5-fIL-1β were identified in Human embryonic kidney cells (HEK293T) by immunofluorescence assay. Humoral and cellular immune responses were evaluated in mice to compare the immunogenicity between different immunized groups. The results showed that the successful expression of PLO or fIL-1β protein was detected by confocal microscopy for cells transfected with plasmid pVAX1-PLO and/or pcDNA3.1/V5-fIL-1β. The mice immunized with pVAX1-PLO elicited a higher titer of PLO-specific antibody than the control group. The levels of IFN-γ and IL-2 were significantly increased in the pVAX1-PLO immunized mice, while the expression level of IL-4 was slightly increased but not significant. These findings suggested that the DNA vaccine pVAX1-PLO can primarily induce Th1 immune response. The residual Colony-Forming Units (CFUs) from the liver and peritoneal fluid were decreased obviously in the pVAX1-PLO treated mice compared with the control. Importantly, co-immunization with pcDNA3.1/V5-fIL-1β and pVAX1-PLO could enhance host humoral and cellular immune responses and significantly protect mouse from T. pyogenes infection. In conclusion, our study provides a promising strategy against T. pyogenes infections and implies the potential clinical application of combined DNA vaccines in diseases control.
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Affiliation(s)
- Ting Huang
- Key Laboratory of Bio-resources and Eco-environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
| | - Kelei Zhao
- Key Laboratory of Bio-resources and Eco-environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
| | - Ziqi Zhang
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Ce Tang
- Sichuan Key Laboratory of Medical American Cockroach, Chengdu, China
| | - Xiuyue Zhang
- Key Laboratory of Bio-resources and Eco-environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
| | - Bisong Yue
- Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University, Chengdu, China.
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Liang Y, Jie Z, Hou L, Yi P, Wang W, Kwota Z, Salvato M, de Waal Malefyt R, Soong L, Sun J. IL-33 promotes innate IFN-γ production and modulates dendritic cell response in LCMV-induced hepatitis in mice. Eur J Immunol 2015; 45:3052-63. [PMID: 26249267 DOI: 10.1002/eji.201545696] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Revised: 07/14/2015] [Accepted: 07/31/2015] [Indexed: 12/19/2022]
Abstract
Recent studies have revealed IL-33 as a key factor in promoting antiviral T-cell responses. However, it is less clear as to how IL-33 regulates innate immunity. In this study, we infected wild-type (WT) and IL-33(-/-) mice with lymphocytic choriomeningitis virus and demonstrated an essential role of infection-induced IL-33 expression for robust innate IFN-γ production in the liver. We first show that IL-33 deficiency resulted in a marked reduction in the number of IFN-γ(+) γδ T and NK cells, but an increase in that of IL-17(+) γδ T cells at 16 h postinfection. Recombinant IL-33 (rIL-33) treatment could reverse such deficiency via increasing IFN-γ-producing γδ T and NK cells, and inhibiting IL-17(+) γδ T cells. We also found that rIL-33-induced type 2 innate lymphoid cells were not involved in T-cell responses and liver injury, since the adoptive transfer of type 2 innate lymphoid cells neither affected the IFN-γ and TNF-α production in T cells, nor liver transferase levels in lymphocytic choriomeningitis virus infected mice. Interestingly, we found that while IL-33 was not required for costimulatory molecule expression, it was critical for DC proliferation and cytokine production. Together, this study highlights an essential role of IL-33 in regulating innate IFN-γ-production and DC function during viral hepatitis.
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Affiliation(s)
- Yuejin Liang
- Department of Microbiology and Immunology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Zuliang Jie
- Department of Microbiology and Immunology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Lifei Hou
- Department of Microbiology and Immunology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Panpan Yi
- Department of Microbiology and Immunology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA.,Department of Infectious Diseases, Key Laboratory of Viral Hepatitis of Hunan, Xiangya Hospital, Central South University, Changsha, China
| | - Wei Wang
- Department of Microbiology and Immunology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Zakari Kwota
- Department of Microbiology and Immunology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Maria Salvato
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
| | | | - Lynn Soong
- Department of Microbiology and Immunology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA.,Department of Pathology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Jiaren Sun
- Department of Microbiology and Immunology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
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34
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Nishimura S, Nagasaki M, Kunishima S, Sawaguchi A, Sakata A, Sakaguchi H, Ohmori T, Manabe I, Italiano JE, Ryu T, Takayama N, Komuro I, Kadowaki T, Eto K, Nagai R. IL-1α induces thrombopoiesis through megakaryocyte rupture in response to acute platelet needs. ACTA ACUST UNITED AC 2015; 209:453-66. [PMID: 25963822 PMCID: PMC4427781 DOI: 10.1083/jcb.201410052] [Citation(s) in RCA: 167] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An alternative pathway triggering enhanced platelet release from bone marrow megakaryocytes via a rupture-based mechanism is regulated by IL-1α in response to acute platelet requirements. Intravital visualization of thrombopoiesis revealed that formation of proplatelets, which are cytoplasmic protrusions in bone marrow megakaryocytes (MKs), is dominant in the steady state. However, it was unclear whether this is the only path to platelet biogenesis. We have identified an alternative MK rupture, which entails rapid cytoplasmic fragmentation and release of much larger numbers of platelets, primarily into blood vessels, which is morphologically and temporally different than typical FasL-induced apoptosis. Serum levels of the inflammatory cytokine IL-1α were acutely elevated after platelet loss or administration of an inflammatory stimulus to mice, whereas the MK-regulator thrombopoietin (TPO) was not elevated. Moreover, IL-1α administration rapidly induced MK rupture–dependent thrombopoiesis and increased platelet counts. IL-1α–IL-1R1 signaling activated caspase-3, which reduced plasma membrane stability and appeared to inhibit regulated tubulin expression and proplatelet formation, and ultimately led to MK rupture. Collectively, it appears the balance between TPO and IL-1α determines the MK cellular programming for thrombopoiesis in response to acute and chronic platelet needs.
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Affiliation(s)
- Satoshi Nishimura
- Department of Cardiovascular Medicine, Translational Systems Biology and Medicine Initiative, Computational Diagnostic Radiology and Preventive Medicine, Department of Diabetes and Metabolic Diseases, The University of Tokyo, Tokyo 113-8654, Japan Department of Cardiovascular Medicine, Translational Systems Biology and Medicine Initiative, Computational Diagnostic Radiology and Preventive Medicine, Department of Diabetes and Metabolic Diseases, The University of Tokyo, Tokyo 113-8654, Japan Center for Molecular Medicine, Jichi Medical University, Tochigi 329-0498, Japan Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Saitama 332-0012, Japan
| | - Mika Nagasaki
- Department of Cardiovascular Medicine, Translational Systems Biology and Medicine Initiative, Computational Diagnostic Radiology and Preventive Medicine, Department of Diabetes and Metabolic Diseases, The University of Tokyo, Tokyo 113-8654, Japan Department of Cardiovascular Medicine, Translational Systems Biology and Medicine Initiative, Computational Diagnostic Radiology and Preventive Medicine, Department of Diabetes and Metabolic Diseases, The University of Tokyo, Tokyo 113-8654, Japan
| | - Shinji Kunishima
- Department of Advanced Diagnosis, Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya 460-001, Japan
| | - Akira Sawaguchi
- Department of Anatomy, Ultrastructural Cell Biology, Faculty of Medicine, University of Miyazaki, Miyazaki 889-1692, Japan
| | - Asuka Sakata
- Center for Molecular Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | | | - Tsukasa Ohmori
- Center for Molecular Medicine, Jichi Medical University, Tochigi 329-0498, Japan
| | - Ichiro Manabe
- Department of Cardiovascular Medicine, Translational Systems Biology and Medicine Initiative, Computational Diagnostic Radiology and Preventive Medicine, Department of Diabetes and Metabolic Diseases, The University of Tokyo, Tokyo 113-8654, Japan
| | - Joseph E Italiano
- Division of Hematology, Department of Medicine, Brigham and Women's Hospital, Vascular Biology Program at Boston Children's Hospital, Harvard Medical School, Boston, MA 02215
| | - Tomiko Ryu
- Internal medicine, Social Insurance Central General Hospital, Tokyo 105-8330, Japan
| | - Naoya Takayama
- Center for iPS Cell Research and Application, Kyoto University, Kyoto 606-8507, Japan
| | - Issei Komuro
- Department of Cardiovascular Medicine, Translational Systems Biology and Medicine Initiative, Computational Diagnostic Radiology and Preventive Medicine, Department of Diabetes and Metabolic Diseases, The University of Tokyo, Tokyo 113-8654, Japan Department of Cardiovascular Medicine, Translational Systems Biology and Medicine Initiative, Computational Diagnostic Radiology and Preventive Medicine, Department of Diabetes and Metabolic Diseases, The University of Tokyo, Tokyo 113-8654, Japan
| | - Takashi Kadowaki
- Department of Cardiovascular Medicine, Translational Systems Biology and Medicine Initiative, Computational Diagnostic Radiology and Preventive Medicine, Department of Diabetes and Metabolic Diseases, The University of Tokyo, Tokyo 113-8654, Japan Department of Cardiovascular Medicine, Translational Systems Biology and Medicine Initiative, Computational Diagnostic Radiology and Preventive Medicine, Department of Diabetes and Metabolic Diseases, The University of Tokyo, Tokyo 113-8654, Japan
| | - Koji Eto
- Center for iPS Cell Research and Application, Kyoto University, Kyoto 606-8507, Japan
| | - Ryozo Nagai
- Center for Molecular Medicine, Jichi Medical University, Tochigi 329-0498, Japan
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Anandamide attenuates Th-17 cell-mediated delayed-type hypersensitivity response by triggering IL-10 production and consequent microRNA induction. PLoS One 2014; 9:e93954. [PMID: 24699635 PMCID: PMC3974854 DOI: 10.1371/journal.pone.0093954] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Accepted: 03/12/2014] [Indexed: 11/19/2022] Open
Abstract
Endogenous cannabinoids [endocannabinoids] are lipid signaling molecules that have been shown to modulate immune functions. However, their role in the regulation of Th17 cells has not been studied previously. In the current study, we used methylated Bovine Serum Albumin [mBSA]-induced delayed type hypersensitivity [DTH] response in C57BL/6 mice, mediated by Th17 cells, as a model to test the anti-inflammatory effects of endocannabinoids. Administration of anandamide [AEA], a member of the endocannabinoid family, into mice resulted in significant mitigation of mBSA-induced inflammation, including foot pad swelling, cell infiltration, and cell proliferation in the draining lymph nodes [LN]. AEA treatment significantly reduced IL-17 and IFN-γ production, as well as decreased RORγt expression while causing significant induction of IL-10 in the draining LNs. IL-10 was critical for the AEA-induced mitigation of DTH response inasmuch as neutralization of IL-10 reversed the effects of AEA. We next analyzed miRNA from the LN cells and found that 100 out of 609 miRNA species were differentially regulated in AEA-treated mice when compared to controls. Several of these miRNAs targeted proinflammatory mediators. Interestingly, many of these miRNA were also upregulated upon in vitro treatment of LN cells with IL-10. Together, the current study demonstrates that AEA may suppress Th-17 cell–mediated DTH response by inducing IL-10 which in turn triggers miRNA that target proinflammatory pathways.
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36
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Benahmed F, Chyou S, Dasoveanu D, Chen J, Kumar V, Iwakura Y, Lu TT. Multiple CD11c+ cells collaboratively express IL-1β to modulate stromal vascular endothelial growth factor and lymph node vascular-stromal growth. THE JOURNAL OF IMMUNOLOGY 2014; 192:4153-63. [PMID: 24659690 DOI: 10.4049/jimmunol.1301765] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Lymphadenopathy in autoimmune and other lymphoproliferative diseases is in part characterized by immunoblasts and vascular proliferation. The lymph node vasculature, along with the nonvascular stromal compartment, supports lymphocyte function, and targeting vascular-stromal expansion in inflamed nodes may modulate lymphocyte function in disease. CD11c(+) cells are essential for vascular-stromal proliferation and the upregulation of vascular endothelial growth factor (VEGF) needed for vascular proliferation. However, targetable CD11c(+) cell-derived molecular mediators, the identity of relevant CD11c(+) cells, and whether CD11c(+) cells directly stimulate VEGF-expressing stromal cells are poorly understood. In this study we show that CD11c(+) CD11b(+) CCR2-dependent monocytes and CCR7-dependent dendritic cells express IL-1β. IL-1β blockade, IL-1β deficiency in radiosensitive cells, and CCR2/CCR7 double deficiency but not single deficiency all attenuate immunization-induced vascular-stromal proliferation. gp38(+) stromal fibroblastic reticular cells (FRCs) that express VEGF are enriched for Thy1(+) cells and partially overlap with CCL21-expressing FRCs, and FRC VEGF is attenuated with IL-1β deficiency or blockade. IL-1β localizes to the outer borders of the T zone, where VEGF-expressing cells are also enriched. Ex vivo, CD11b(+) cells enriched for IL-1β(+) cells can directly induce cultured gp38(+)Thy1(+) FRCs to upregulate VEGF. Taken together, these results suggest a mechanism whereby multiple recruited CD11c(+) populations express IL-1β and directly modulate FRC function to help promote the initiation of vascular-stromal growth in stimulated lymph nodes. These data provide new insight into how CD11c(+) cells regulate the lymph node vascular-stromal compartment, add to the evolving understanding of functional stromal subsets, and suggest a possible utility for IL-1β blockade in preventing inflammatory lymph node growth.
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Affiliation(s)
- Fairouz Benahmed
- Autoimmunity and Inflammation Program and Pediatric Rheumatology, Hospital for Special Surgery, New York, NY 10021
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37
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Reduction of IL-17A might suppress the Th1 response and promote the Th2 response by boosting the function of Treg cells during silica-induced inflammatory response in vitro. Mediators Inflamm 2014; 2014:570894. [PMID: 24692850 PMCID: PMC3945471 DOI: 10.1155/2014/570894] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 12/30/2013] [Accepted: 01/03/2014] [Indexed: 02/07/2023] Open
Abstract
Silica inhalation can induce chronic lung inflammation and fibrosis. Upon silica stimulation, activated macrophages trigger the T-lymphocyte which can differentiate into many different types of Th cells, including the recently discovered Th17 cells. IL-17A, the typical Th17 cytokine, is reported in some inflammatory diseases. However, the role of IL-17A in silica-induced inflammatory response is still not clear. The regulatory mechanism of silica-induced Th17 response also needs to be investigated. So we established a mice primary cell coculture system (macrophage and lymphocyte) to investigate the role of IL-17A in silica-induced inflammatory response in vitro, by using anti-IL-17A mAb and IL-1Ra. Both anti-IL-17A mAb and IL-1Ra decreased the level of IL-17A and increased the function of Treg cells. The Th1 response was suppressed and the Th2 response was promoted by the addition of anti-IL-17A mAb or IL-1Ra. IL-1Ra treatment decreased the level of IL-6, whereas the levels of IL-23 and ROR- γ t were increased. Our study demonstrated that IL-17A reduction altered the pattern of silica-induced Th responses by boosting the function of Treg cells in vitro. Blocking the function of IL-1 signal pathway could suppress the level of IL-17A, which played the major role in modulating silica-induced Th responses in vitro.
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Muralidharan S, Mandrekar P. Cellular stress response and innate immune signaling: integrating pathways in host defense and inflammation. J Leukoc Biol 2013; 94:1167-84. [PMID: 23990626 DOI: 10.1189/jlb.0313153] [Citation(s) in RCA: 212] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Extensive research in the past decade has identified innate immune recognition receptors and intracellular signaling pathways that culminate in inflammatory responses. Besides its role in cytoprotection, the importance of cell stress in inflammation and host defense against pathogens is emerging. Recent studies have shown that proteins in cellular stress responses, including the heat shock response, ER stress response, and DNA damage response, interact with and regulate signaling intermediates involved in the activation of innate and adaptive immune responses. The effect of such regulation by cell stress proteins may dictate the inflammatory profile of the immune response during infection and disease. In this review, we describe the regulation of innate immune cell activation by cell stress pathways, present detailed descriptions of the types of stress response proteins and their crosstalk with immune signaling intermediates that are essential in host defense, and illustrate the relevance of these interactions in diseases characteristic of aberrant immune responses, such as chronic inflammatory diseases, autoimmune disorders, and cancer. Understanding the crosstalk between cellular stress proteins and immune signaling may have translational implications for designing more effective regimens to treat immune disorders.
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Affiliation(s)
- Sujatha Muralidharan
- 1.LRB 221, University of Massachusetts Medical School, 364 Plantation Street, Worcester, MA 01605.
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Goswami S, Sharma S, Haldar C. The oxidative damages caused by ultraviolet radiation type C (UVC) to a tropical rodent Funambulus pennanti: Role of melatonin. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2013; 125:19-25. [DOI: 10.1016/j.jphotobiol.2013.04.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 04/01/2013] [Accepted: 04/22/2013] [Indexed: 11/26/2022]
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Krysko O, Maes T, Plantinga M, Holtappels G, Imiru R, Vandenabeele P, Joos G, Krysko DV, Bachert C. The adjuvant-like activity of staphylococcal enterotoxin B in a murine asthma model is independent of IL-1R signaling. Allergy 2013; 68:446-53. [PMID: 23347053 DOI: 10.1111/all.12102] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/28/2012] [Indexed: 12/21/2022]
Abstract
BACKGROUND Staphylococcal enterotoxin B (SEB) is a superantigen known to be a modulator of chronic airway inflammation in mice and humans, yet little is known about the mechanisms that regulate its interaction with the innate immune system. We investigated this mechanism in a murine model of allergic airway inflammation induced by OVA (ovalbumin) in the presence of SEB. METHODS Superantigen-induced allergic inflammation was studied in IL-1R knockout (KO) mice exposed to OVA+SEB. Multicolor flow cytometry was used to analyze the inflammatory cell profile in airways and lymph nodes. Production of IL-4, IL-5, IL-10, and IL-13 in lymph nodes was assessed by Luminex technology. RESULTS In wild-type mice, endonasal instillation of OVA+SEB induced a pulmonary inflammation, characterized by an increase in the number of eosinophils, T cells, and dendritic cells and in the production of Th2 cytokines and OVA-specific IgE. In IL-1R KO mice exposed to OVA+SEB, attraction of CD4+ cells and production of Th2 cytokines were reduced. However, knocking out IL-1R did not affect any of the features of allergic airway inflammation, such as bronchial eosinophilia, OVA-specific IgE production and goblet cell metaplasia. CONCLUSION We provide new insights into the mechanisms of airways allergy development in the presence of bacterial superantigen. The asthma features induced by OVA+SEB, such as bronchial eosinophilia, goblet cell proliferation, production of OVA-specific IgE and increase in inflammatory dendritic cells, are IL-1R independent. Yet, IL-1R signaling is crucial for CD4 cell accumulation and Th2 cytokine production.
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Affiliation(s)
- O. Krysko
- Upper Airway Research Laboratory; Department of Oto-Rhino-Laryngology; Ghent University; Ghent; Belgium
| | - T. Maes
- Department of Respiratory Medicine; Ghent University Hospital; Ghent; Belgium
| | - M. Plantinga
- Laboratory of Immunoregulation and Mucosal Immunology; Department of Respiratory Diseases; Ghent University Hospital; Ghent; Belgium
| | - G. Holtappels
- Upper Airway Research Laboratory; Department of Oto-Rhino-Laryngology; Ghent University; Ghent; Belgium
| | - R. Imiru
- Upper Airway Research Laboratory; Department of Oto-Rhino-Laryngology; Ghent University; Ghent; Belgium
| | | | - G. Joos
- Department of Respiratory Medicine; Ghent University Hospital; Ghent; Belgium
| | | | - C. Bachert
- Upper Airway Research Laboratory; Department of Oto-Rhino-Laryngology; Ghent University; Ghent; Belgium
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Vasseur F, Sendid B, Broly F, Gower-Rousseau C, Sarazin A, Standaert-Vitse A, Colombel JF, Poulain D, Jouault T. The CARD8 p.C10X mutation associates with a low anti-glycans antibody response in patients with Crohn's disease. BMC MEDICAL GENETICS 2013; 14:35. [PMID: 23506543 PMCID: PMC3608972 DOI: 10.1186/1471-2350-14-35] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Accepted: 03/13/2013] [Indexed: 01/01/2023]
Abstract
BACKGROUND Crohn's disease (CD) is associated with elevated anti-glycans antibody response in 60% of CD patients, and 25% of healthy first-degree relatives (HFDRs), suggesting a genetic influence for this humoral response. In mice, anti-glucan antibody response depends on the NLRP3 inflammasome. Here, we explored the effect of mutated CARD8, a component of the inflammasome, on anti-glycans antibody response in human. METHODS The association between p.C10X mutation (rs2043211) of the CARD8 gene and the levels of anti-glycans antibody response was examined in 39 CD families. The family-based QTDT association test was used to test for the genetic association between CARD8 p.C10X mutation and anti-glycan antibodies in the pedigrees. The difference in antibody responses determined by ELISA was tested in a subgroup of CD probands (one per family) and in a subgroup of HFDRs using the Wilcoxon Kruskal Wallis non-parametric test. RESULTS The QTDT familial transmission tests showed that the p.C10X mutation of CARD8 was significantly associated with lower levels of antibody to mannans and glucans but not chitin (p=0.024, p=0.0028 and p=0.577, for ASCA, ALCA and ACCA, respectively). These associations were independent of NOD2 and NOD1 genetic backgrounds. The p.C10X mutation significantly associated or displayed a trend toward lower ASCA and ALCA levels (p=0.038 and p=0.08, respectively) only in the subgroup of CD probands. Such associations were not significant for ACCA levels in both subgroups of CD probands and of HFDRs. CONCLUSION Our results show that ASCA and ALCA but not ACCA levels are under the influence of CARD8 genotype. Alteration of CARD8, a component of inflammasome, is associated with lower levels of antibodies directed to mannans and glucans at least in CD patients.
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Kim BS, Jin YH, Meng L, Hou W, Kang HS, Park HS, Koh CS. IL-1 signal affects both protection and pathogenesis of virus-induced chronic CNS demyelinating disease. J Neuroinflammation 2012; 9:217. [PMID: 22985464 PMCID: PMC3462702 DOI: 10.1186/1742-2094-9-217] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Accepted: 09/05/2012] [Indexed: 12/23/2022] Open
Abstract
Background Theiler’s virus infection induces chronic demyelinating disease in mice and has been investigated as an infectious model for multiple sclerosis (MS). IL-1 plays an important role in the pathogenesis of both the autoimmune disease model (EAE) and this viral model for MS. However, IL-1 is known to play an important protective role against certain viral infections. Therefore, it is unclear whether IL-1-mediated signaling plays a protective or pathogenic role in the development of TMEV-induced demyelinating disease. Methods Female C57BL/6 mice and B6.129S7-Il1r1tm1Imx/J mice (IL-1R KO) were infected with Theiler’s murine encephalomyelitis virus (1 x 106 PFU). Differences in the development of demyelinating disease and changes in the histopathology were compared. Viral persistence, cytokine production, and immune responses in the CNS of infected mice were analyzed using quantitative PCR, ELISA, and flow cytometry. Results Administration of IL-1β, thereby rending resistant B6 mice susceptible to TMEV-induced demyelinating disease, induced a high level of Th17 response. Interestingly, infection of TMEV into IL-1R-deficient resistant C57BL/6 (B6) mice also induced TMEV-induced demyelinating disease. High viral persistence was found in the late stage of viral infection in IL-1R-deficient mice, although there were few differences in the initial anti-viral immune responses and viral persistent levels between the WT B6 and IL-1R-deficiecent mice. The initial type I IFN responses and the expression of PDL-1 and Tim-3 were higher in the CNS of TMEV-infected IL-1R-deficient mice, leading to deficiencies in T cell function that permit viral persistence. Conclusions These results suggest that the presence of high IL-1 level exerts the pathogenic role by elevating pathogenic Th17 responses, whereas the lack of IL-1 signals promotes viral persistence in the spinal cord due to insufficient T cell activation by elevating the production of inhibitory cytokines and regulatory molecules. Therefore, the balance of IL-1 signaling appears to be extremely important for the protection from TMEV-induced demyelinating disease, and either too much or too little signaling promotes the development of disease.
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Affiliation(s)
- Byung S Kim
- Department of Microbiology-Immunology, Northwestern University Medical School, 303 East Chicago Ave, Chicago, IL 60611, USA.
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Kato G, Kondo H, Aoki T, Hirono I. A novel immune-related gene, microtubule aggregate protein homologue, is up-regulated during IFN-γ-related immune responses in Japanese flounder, Paralichthys olivaceus. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2012; 36:349-358. [PMID: 21824491 DOI: 10.1016/j.dci.2011.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2011] [Revised: 06/02/2011] [Accepted: 06/02/2011] [Indexed: 05/31/2023]
Abstract
Delayed-type hypersensitivity (DTH) response mediated by antigen-specific Th1 cells is used as a test to detect exposure to tuberculosis in humans. Japanese flounder (Paralichthys olivaceus) microtubule aggregate protein homologue (PoMTAP) was identified as a gene strongly induced during fish DTH response. In this study, PoMTAP gene was cloned and its expression profile was analyzed. The PoMTAP gene has a transcriptional regulatory region that includes two interferon-stimulated response elements and two IFN-γ activated sites. Expressions of PoMTAP and IFN-γ genes were up-regulated at the same time points during the DTH response, Edwardsiella tarda infection and VHSV infection. Furthermore, PoMTAP gene expressing cells also expressed CD3ε, confirming that PoMTAP is expressed by T lymphocytes. These results suggest that PoMTAP is a novel immune-related gene expressed by T lymphocytes that is preferentially induced by IFN-γ and has a role in Th1-mediated immune responses in Japanese flounder.
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Affiliation(s)
- Goshi Kato
- Laboratory of Genome Science, Graduate School of Tokyo University of Marine Science and Technology, Tokyo, Japan
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Madera RF, Wang JP, Libraty DH. The combination of early and rapid type I IFN, IL-1α, and IL-1β production are essential mediators of RNA-like adjuvant driven CD4+ Th1 responses. PLoS One 2011; 6:e29412. [PMID: 22206014 PMCID: PMC3242790 DOI: 10.1371/journal.pone.0029412] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Accepted: 11/28/2011] [Indexed: 12/13/2022] Open
Abstract
There is a growing need for novel vaccine adjuvants that can provide safe and potent T-helper type 1 (Th1) activity. RNA-like immune response modifiers (IRMs) are candidate T-cell adjuvants that skew acquired immune responses towards a Th1 phenotype. We set out to delineate the essential signaling pathways by which the RNA-like IRMs, resiquimod (R-848) and polyinosinic:polycytidylic acid (poly I:C), augment CD4+ T-helper 1 (Th1) responses. Highly purified murine conventional dendritic cells (cDCs) and conventional CD4+ T-cells were co-cultured in allogeneic and MHC congenic mixed leukocyte reactions. The activation of CD4+ Th1 cells was examined utilizing cells from mice deficient in specific RNA-sensing pattern recognition receptors and signaling mediators. R-848 and poly I:C stimulation of Type I interferon production and signaling in cDCs was essential but not sufficient for driving CD4+ Th1 responses. The early and rapid production of IL-1α and IL-1β was equally critical for the optimal activation of Th1 CD4+ T-cells. R-848 activation of Toll-like receptor 7/MyD88-dependent signaling in cDCs led to a rapid upregulation of pro-IL-1α and pro-IL-1β production compared to poly I:C activation of MyD88-independent signaling pathways. The in vitro data show that CD4+ T-cell adjuvant activity of RNA-like IRMs is mediated by a critical combination of early and rapid Type I interferon, IL-1α and IL-1β production. These results provide important insights into the key signaling pathways responsible for RNA-like IRM CD4+ Th1 activation. A better understanding of the critical signaling pathways by which RNA-like IRMs stimulate CD4+ Th1 responses is relevant to the rational design of improved vaccine adjuvants.
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Affiliation(s)
- Rachel F. Madera
- Division of Infectious Disease and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
| | - Jennifer P. Wang
- Division of Infectious Disease and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
| | - Daniel H. Libraty
- Division of Infectious Disease and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America
- * E-mail:
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Shin JS, Yun CH, Cho YW, Baek NI, Choi MS, Jeong TS, Chung HG, Lee KT. Indole-Containing Fractions of Brassica rapa Inhibit Inducible Nitric Oxide Synthase and Pro-Inflammatory Cytokine Expression by Inactivating Nuclear Factor-κB. J Med Food 2011; 14:1527-37. [DOI: 10.1089/jmf.2011.1611] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Ji-Sun Shin
- Department of Pharmaceutical Biochemistry, Kyung Hee University, Seoul, Korea
- Department of Biomedical Science, College of Medical Science, Kyung Hee University, Seoul, Korea
| | - Chang Hyeon Yun
- Department of Pharmaceutical Biochemistry, Kyung Hee University, Seoul, Korea
- Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, Korea
| | - Young-Wuk Cho
- Department of Biomedical Science, College of Medical Science, Kyung Hee University, Seoul, Korea
| | - Nam-In Baek
- Graduate School of Biotechnology & Plant Metabolism Research Center, Kyung Hee University, Suwon, Korea
| | - Myung-Sook Choi
- Department of Food Science and Nutrition, Kyungpook National University, Daegu, Korea
| | - Tae-Sook Jeong
- National Research Laboratory of Lipid Metabolism & Atherosclerosis, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | | | - Kyung-Tae Lee
- Department of Pharmaceutical Biochemistry, Kyung Hee University, Seoul, Korea
- Department of Biomedical Science, College of Medical Science, Kyung Hee University, Seoul, Korea
- Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, Korea
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Anti-inflammatory activity of methyl salicylate glycosides isolated from Gaultheria yunnanensis (Franch.) Rehder. Molecules 2011; 16:3875-84. [PMID: 21555977 PMCID: PMC6263312 DOI: 10.3390/molecules16053875] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2010] [Revised: 04/28/2011] [Accepted: 05/06/2011] [Indexed: 12/16/2022] Open
Abstract
Gaultheria yunnanensis (Franch.) Rehder is a kind of traditional Chinese herbal medicine used for the treatments of rheumatoid arthritis, swelling and pain. Two methyl salicylate glycosides, namely methyl benzoate-2-O-β-D-xylopyranosyl(1-6)-O-β-D-gluco-pyranoside (J12122) and methyl benzoate-2-O-β-D-xylopyranosyl(1-2)[O-β-D-xylopyranosyl(1-6)]-O-β-D-glucopyranoside (J12123), are natural salicylic derivatives isolated from Gaultheria yunnanensis. In this study, we investigated the anti-inflammatory activity of J12122 and J12123 on LPS-induced RAW264.7 macrophage cells by measuring the production of pro-inflammatory cytokines, accumulation of nitric oxide (NO), and level of reactive oxygen species (ROS). The results showed that both methyl salicylate glycosides dose-dependently inhibited the production of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and IL-6, respectively. Consistent with these observations, J12122 and J12123 significantly suppressed the accumulation of NO, with an inhibitory rate of 56.20% and 51.72% at 3.0 μg/mL concentration, respectively. Furthermore, the two methyl salicylate glycosides reduced the level of ROS induced by LPS. These results showed that the isolated compounds possess anti-inflammatory properties through inhibition the production pro-inflammatory cytokines, NO, and ROS.
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A role for leukocyte-derived IL-1RA in DC homeostasis revealed by increased susceptibility of IL-1RA-deficient mice to cutaneous leishmaniasis. J Invest Dermatol 2011; 131:1650-9. [PMID: 21525884 DOI: 10.1038/jid.2011.99] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Dendritic cell (DC)-derived IL-1α/β plays a critical role in the induction of T helper type 1 (Th1)-dependent immunity against Leishmania. DCs from susceptible BALB/c mice produce less IL-1α/β when compared with resistant C57BL/6 mice, contributing to aberrant Th2 development and ultimate death of infected mice. We have extended our studies of the role of IL-1 in leishmaniasis using IL-1RA(-/-) BALB/c mice that are characterized by upregulated IL-1 receptor signaling. Unexpectedly, infection of IL-1RA(-/-) mice led to significantly worsened disease outcome with larger lesions, dramatically higher parasite burdens, and decreased IFN-γ production by antigen-specific T cells. We determined that IL-1RA(-/-) DCs were more mature already in the steady state, exhibited less phagocytotic capacity, and IL-12 production in response to various stimuli was impaired. Our data suggest that in addition to effects on Th education, IL-1α/β signaling also modulates DC homeostasis with increased signaling, leading to downmodulation of IL-12 synthesis and worsened disease outcome after infection with Leishmania major. Thus, the complex regulation of various members of the IL-1 cytokine family mediated through effects on both DCs and T cells critically contributes to disease outcome against this important human pathogen.
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Onozawa Y, Komai T, Oda T. Activation of T cell death-associated gene 8 attenuates inflammation by negatively regulating the function of inflammatory cells. Eur J Pharmacol 2011; 654:315-9. [PMID: 21238451 DOI: 10.1016/j.ejphar.2011.01.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2010] [Revised: 10/21/2010] [Accepted: 01/04/2011] [Indexed: 12/13/2022]
Abstract
T cell death-associated gene 8 (TDAG8) is a G-protein-coupled receptor identified by differential mRNA display during thymocyte apoptosis induced by T cell receptor engagement. To examine the physiological role of an orphan G-protein-coupled receptor TDAG8 in inflammation, we studied various immune-mediated inflammatory disease models using TDAG8-deficient mice. We found that TDAG8-deficient mice showed significant exacerbation of anti-type II collagen antibody-induced arthritis and delayed-type hypersensitivity, and showed a slight exacerbation of collagen-induced arthritis. These results suggest that TDAG8 acts as a negative regulator of inflammation.
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Affiliation(s)
- Yoshiko Onozawa
- Biological Research Laboratories III, Daiichi Sankyo Co., Ltd., 1-16-13 Kitakasai, Edogawa-ku, Tokyo 134-8630, Japan
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Hadis U, Leggatt GR, Thomas R, Frazer IH, Kovacs EM. IL-1 signalling determines the fate of skin grafts expressing non-self protein in keratinocytes. Exp Dermatol 2011; 19:723-9. [PMID: 20545758 DOI: 10.1111/j.1600-0625.2010.01092.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Although IL-1 is a known inflammatory cytokine during pathogen infection, the role of IL-1 in skin graft rejection, particularly where foreign antigen is expressed exclusively in keratinocytes, is less understood. Here, we use a syngeneic skin graft system, where antigens are expressed in epithelial cells via either a keratin 14 or keratin 5 promoter, to explore the role of IL-1 in graft rejection and induction of epithelial antigen-specific effector CD8(+) T-cell function. Keratin 5 ovalbumin (K5mOVA) transgenic skin grafts destined for rejection demonstrated increased expression of IL-1beta and its receptors compared to K14 HPV16 E7 transgenic grafts that do not reject spontaneously. Rejection of OVA grafts lacking the IL-1 receptor (IL-1R1) was delayed and associated with decreased numbers of antigen-specific CD8 T cells. In contrast, K14E7 grafts survived on immunocompetent, syngeneic recipients with decreased graft levels of IL-1beta and IL-1R1 and 2. However, in the absence of the IL-1 receptor antagonist, IL-1Ra, skin grafts were spontaneously rejected and an E7-specific CD8 T-cell response was primed. Thus, expression of the HPV16E7 oncoprotein in epithelial cells prevents IL-1beta-associated skin graft rejection and induction of antigen-specific CD8 T-cell responses. Enhancing IL-1beta signalling, via blocking of the IL-1 receptor antagonist, may represent an alternative strategy for treatment of HPV16E7-associated cancers.
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Affiliation(s)
- Usriansyah Hadis
- The University of Queensland Diamantina Institute for Cancer, Immunology and Metabolic Medicine, Princess Alexandra Hospital, Woolloongabba, Qld, Australia
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Low-Level Laser Therapy Reduces Delayed Hypersensitivity Reaction to Ovalbumin in Balb/C Mice. Photomed Laser Surg 2010; 28:773-7. [DOI: 10.1089/pho.2009.2684] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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