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Miyahara A, Umeki A, Sato K, Nomura T, Yamamoto H, Miyasaka T, Tanno D, Matsumoto I, Zong T, Kagesawa T, Oniyama A, Kawamura K, Yuan X, Yokoyama R, Kitai Y, Kanno E, Tanno H, Hara H, Yamasaki S, Saijo S, Iwakura Y, Ishii K, Kawakami K. Innate phase production of IFN-γ by memory and effector T cells expressing early activation marker CD69 during infection with Cryptococcus deneoformans in the lungs. Infect Immun 2024; 92:e0002424. [PMID: 38700335 DOI: 10.1128/iai.00024-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 04/09/2024] [Indexed: 05/05/2024] Open
Abstract
Cryptococcus deneoformans is a yeast-type fungus that causes fatal meningoencephalitis in immunocompromised patients and evades phagocytic cell elimination through an escape mechanism. Memory T (Tm) cells play a central role in preventing the reactivation of this fungal pathogen. Among these cells, tissue-resident memory T (TRM) cells quickly respond to locally invaded pathogens. This study analyzes the kinetics of effector T (Teff) cells and Tm cells in the lungs after cryptococcal infection. Emphasis is placed on the kinetics and cytokine expression of TRM cells in the early phase of infection. CD4+ Tm cells exhibited a rapid increase by day 3, peaked at day 7, and then either maintained their levels or exhibited a slight decrease until day 56. In contrast, CD8+ Tm cells reached their peak on day 3 and thereafter decreased up to day 56 post-infection. These Tm cells were predominantly composed of CD69+ TRM cells and CD69+ CD103+ TRM cells. Disruption of the CARD9 gene resulted in reduced accumulation of these TRM cells and diminished interferon (IFN) -γ expression in TRM cells. TRM cells were derived from T cells with T cell receptors non-specific to ovalbumin in OT-II mice during cryptococcal infection. In addition, TRM cells exhibited varied behavior in different tissues. These results underscore the importance of T cells, which produce IFN-γ in the lungs during the early stage of infection, in providing early protection against cryptococcal infection through CARD9 signaling.
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Grants
- 18H02851, 21H02965 Ministry of Education, Culture, Sports, Science and Technology (MEXT)
- 19K17920, 21K16314 Ministry of Education, Culture, Sports, Science and Technology (MEXT)
- JP19jm0210073, JP20jm0210073, JP21jm0210073 Japan Agency for Medical Research and Development (AMED)
- ID-014 MSD Life Science Foundation, Public Interest Incorporated Foundation (SD Life Science Foundation)
- 20-02, 21-04 medical mycology research center, chiba university
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Affiliation(s)
- Anna Miyahara
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Aya Umeki
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Ko Sato
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Toshiki Nomura
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Hideki Yamamoto
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Tomomitsu Miyasaka
- Center for Medical Education, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Miyagi, Japan
| | - Daiki Tanno
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Ikumi Matsumoto
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Tong Zong
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Takafumi Kagesawa
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Akiho Oniyama
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Kotone Kawamura
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Xiaoliang Yuan
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Rin Yokoyama
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Yuki Kitai
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Emi Kanno
- Department of Translational Science for Nursing, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Hiromasa Tanno
- Department of Translational Science for Nursing, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Hiromitsu Hara
- Department of Immunology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Sho Yamasaki
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
- Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
- Division of Molecular Immunology, Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - Shinobu Saijo
- Division of Molecular Immunology, Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - Yoichiro Iwakura
- Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Chiba, Japan
| | - Keiko Ishii
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Kazuyoshi Kawakami
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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2
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Balczon R, Lin MT, Voth S, Nelson AR, Schupp JC, Wagener BM, Pittet JF, Stevens T. Lung endothelium, tau, and amyloids in health and disease. Physiol Rev 2024; 104:533-587. [PMID: 37561137 DOI: 10.1152/physrev.00006.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 06/26/2023] [Accepted: 08/04/2023] [Indexed: 08/11/2023] Open
Abstract
Lung endothelia in the arteries, capillaries, and veins are heterogeneous in structure and function. Lung capillaries in particular represent a unique vascular niche, with a thin yet highly restrictive alveolar-capillary barrier that optimizes gas exchange. Capillary endothelium surveys the blood while simultaneously interpreting cues initiated within the alveolus and communicated via immediately adjacent type I and type II epithelial cells, fibroblasts, and pericytes. This cell-cell communication is necessary to coordinate the immune response to lower respiratory tract infection. Recent discoveries identify an important role for the microtubule-associated protein tau that is expressed in lung capillary endothelia in the host-pathogen interaction. This endothelial tau stabilizes microtubules necessary for barrier integrity, yet infection drives production of cytotoxic tau variants that are released into the airways and circulation, where they contribute to end-organ dysfunction. Similarly, beta-amyloid is produced during infection. Beta-amyloid has antimicrobial activity, but during infection it can acquire cytotoxic activity that is deleterious to the host. The production and function of these cytotoxic tau and amyloid variants are the subject of this review. Lung-derived cytotoxic tau and amyloid variants are a recently discovered mechanism of end-organ dysfunction, including neurocognitive dysfunction, during and in the aftermath of infection.
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Affiliation(s)
- Ron Balczon
- Department of Biochemistry and Molecular Biology, University of South Alabama, Mobile, Alabama, United States
- Center for Lung Biology, University of South Alabama, Mobile, Alabama, United States
| | - Mike T Lin
- Department of Physiology and Cell Biology, University of South Alabama, Mobile, Alabama, United States
- Center for Lung Biology, University of South Alabama, Mobile, Alabama, United States
| | - Sarah Voth
- Department of Cell Biology and Physiology, Edward Via College of Osteopathic Medicine, Monroe, Louisiana, United States
| | - Amy R Nelson
- Department of Physiology and Cell Biology, University of South Alabama, Mobile, Alabama, United States
- Center for Lung Biology, University of South Alabama, Mobile, Alabama, United States
| | - Jonas C Schupp
- Pulmonary and Critical Care Medicine, Department of Internal Medicine, Yale University, New Haven, Connecticut, United States
- Department of Respiratory Medicine, Hannover Medical School, Hannover, Germany
- German Center for Lung Research (DZL), Hannover, Germany
| | - Brant M Wagener
- Department of Anesthesiology and Perioperative Medicine, University of Alabama-Birmingham, Birmingham, Alabama, United States
| | - Jean-Francois Pittet
- Department of Anesthesiology and Perioperative Medicine, University of Alabama-Birmingham, Birmingham, Alabama, United States
| | - Troy Stevens
- Department of Physiology and Cell Biology, University of South Alabama, Mobile, Alabama, United States
- Department of Internal Medicine, University of South Alabama, Mobile, Alabama, United States
- Center for Lung Biology, University of South Alabama, Mobile, Alabama, United States
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3
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Borges BM, Ramos RBC, Preite NW, Kaminski VDL, Alves de Castro P, Camacho M, Maximo MF, Fill TP, Calich VLG, Traynor AM, Sarikaya-Bayram Ö, Doyle S, Bayram Ö, de Campos CBL, Zelanis A, Goldman GH, Loures FV. Transcriptional profiling of a fungal granuloma reveals a low metabolic activity of Paracoccidioides brasiliensis yeasts and an actively regulated host immune response. Front Cell Infect Microbiol 2023; 13:1268959. [PMID: 37868350 PMCID: PMC10585178 DOI: 10.3389/fcimb.2023.1268959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 09/11/2023] [Indexed: 10/24/2023] Open
Abstract
Granulomas are important immunological structures in the host defense against the fungus Paracoccidioides brasiliensis, the main etiologic agent of Paracoccidioidomycosis (PCM), a granulomatous systemic mycosis endemic in Latin America. We have performed transcriptional and proteomic studies of yeasts present in the pulmonary granulomas of PCM aiming to identify relevant genes and proteins that act under stressing conditions. C57BL/6 mice were infected with 1x106 yeasts and after 8- and 12-weeks of infection, granulomatous lesions were obtained for extraction of fungal and murine RNAs and fungal proteins. Dual transcriptional profiling was done comparing lung cells and P. brasiliensis yeasts from granulomas with uninfected lung cells and the original yeast suspension used in the infection, respectively. Mouse transcripts indicated a lung malfunction, with low expression of genes related to muscle contraction and organization. In addition, an increased expression of transcripts related to the activity of neutrophils, eosinophils, macrophages, lymphocytes as well as an elevated expression of IL-1β, TNF-α, IFN-γ, IL-17 transcripts were observed. The increased expression of transcripts for CTLA-4, PD-1 and arginase-1, provided evidence of immune regulatory mechanisms within the granulomatous lesions. Also, our results indicate iron as a key element for the granuloma to function, where a high number of transcripts related to fungal siderophores for iron uptake was observed, a mechanism of fungal virulence not previously described in granulomas. Furthermore, transcriptomics and proteomics analyzes indicated a low fungal activity within the granuloma, as demonstrated by the decreased expression of genes and proteins related to energy metabolism and cell cycle.
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Affiliation(s)
- Bruno Montanari Borges
- Institute of Science and Technology (ICT), Federal University of São Paulo (UNIFESP), São José dos Campos, SP, Brazil
| | - Rafael Berton Correia Ramos
- Institute of Science and Technology (ICT), Federal University of São Paulo (UNIFESP), São José dos Campos, SP, Brazil
| | - Nycolas Willian Preite
- Institute of Science and Technology (ICT), Federal University of São Paulo (UNIFESP), São José dos Campos, SP, Brazil
| | - Valéria de Lima Kaminski
- Institute of Science and Technology (ICT), Federal University of São Paulo (UNIFESP), São José dos Campos, SP, Brazil
| | - Patrícia Alves de Castro
- Faculty of Pharmaceutical Science of Ribeirão Preto (FCFRP), University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Maurício Camacho
- Institute of Science and Technology (ICT), Federal University of São Paulo (UNIFESP), São José dos Campos, SP, Brazil
| | | | - Taicia Pacheco Fill
- Institute of Chemistry, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Vera Lúcia Garcia Calich
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo, Brazil
| | - Aimee M. Traynor
- Department of Biology, Maynooth University, Maynooth, County Kildare, Ireland
| | | | - Sean Doyle
- Department of Biology, Maynooth University, Maynooth, County Kildare, Ireland
| | - Özgür Bayram
- Department of Biology, Maynooth University, Maynooth, County Kildare, Ireland
| | | | - André Zelanis
- Institute of Science and Technology (ICT), Federal University of São Paulo (UNIFESP), São José dos Campos, SP, Brazil
| | - Gustavo H. Goldman
- Faculty of Pharmaceutical Science of Ribeirão Preto (FCFRP), University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Flávio Vieira Loures
- Institute of Science and Technology (ICT), Federal University of São Paulo (UNIFESP), São José dos Campos, SP, Brazil
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4
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Sato K, Kawakami K. Mouse Model of Latent Cryptococcal Infection and Reactivation. Methods Mol Biol 2023; 2667:87-98. [PMID: 37145277 DOI: 10.1007/978-1-0716-3199-7_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
AbstractCryptococcus neoformans is an opportunistic fungal pathogen that frequently causes fatal meningoencephalitis in patients with impaired immune responses. This fungus, an intracellularly growing microbe, evades host immunity, leading to a latent infection (latent C. neoformans infection: LCNI), and cryptococcal disease is developed by its reactivation when host immunity is suppressed. Elucidation of the pathophysiology of LCNI is difficult due to the lack of mouse models. Here we show the established methods for LCNI and reactivation.
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Affiliation(s)
- Ko Sato
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan.
- Department of Intelligent Network for Infection Control, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan.
| | - Kazuyoshi Kawakami
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Department of Intelligent Network for Infection Control, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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5
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Sato K, Kawakami K. PAMPs and Host Immune Response in Cryptococcal Infection. Med Mycol J 2022; 63:133-138. [DOI: 10.3314/mmj.22.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Ko Sato
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine
| | - Kazuyoshi Kawakami
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine
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6
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Trevijano-Contador N, Roselletti E, García-Rodas R, Vecchiarelli A, Zaragoza Ó. Role of IL-17 in Morphogenesis and Dissemination of Cryptococcus neoformans during Murine Infection. Microorganisms 2022; 10:microorganisms10020373. [PMID: 35208830 PMCID: PMC8876707 DOI: 10.3390/microorganisms10020373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 01/20/2022] [Indexed: 02/04/2023] Open
Abstract
Cryptococcus neoformans is a pathogenic yeast that can form Titan cells in the lungs, which are fungal cells of abnormally large size. The factors that regulate Titan cell formation in vivo are still unknown, although an increased proportion of these fungal cells of infected mice correlates with induction of Th2-type responses. Here, we focused on the role played by the cytokine IL-17 in the formation of cryptococcal Titan cells using Il17a−/− knockout mice. We found that after 9 days of infection, there was a lower proportion of Titan cells in Il17a−/− mice compared to the fungal cells found in wild-type animals. Dissemination to the brain occurred earlier in Il17a−/− mice, which correlated with the lower proportion of Titan cells in the lungs. Furthermore, knockout-infected mice increased brain size more than WT mice. We also determined the profile of cytokines accumulated in the brain, and we found significant differences between both mouse strains. We found that in Il17a−/−, there was a modest increase in the concentrations of the Th1 cytokine TNF-α. To validate if the increase in this cytokine had any role in cryptococcal morphogenesis, we injected wild-type mice with TNF-α t and observed that fungal cell size was significantly reduced in mice treated with this cytokine. Our results suggest a compensatory production of cytokines in Il17a−/− mice that influences both cryptococcal morphology and dissemination.
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Affiliation(s)
- Nuria Trevijano-Contador
- Mycology Reference Laboratory, National Centre for Microbiology, Instituto de Salud Carlos III, Carretera Majadahonda-Pozuelo, 28222 Madrid, Spain;
- Correspondence: (N.T.-C.); (Ó.Z.)
| | - Elena Roselletti
- Department of Experimental Medicine, Microbiology Section, University of Perugia, 06123 Perugia, Italy; (E.R.); (A.V.)
| | - Rocío García-Rodas
- Mycology Reference Laboratory, National Centre for Microbiology, Instituto de Salud Carlos III, Carretera Majadahonda-Pozuelo, 28222 Madrid, Spain;
| | - Anna Vecchiarelli
- Department of Experimental Medicine, Microbiology Section, University of Perugia, 06123 Perugia, Italy; (E.R.); (A.V.)
| | - Óscar Zaragoza
- Mycology Reference Laboratory, National Centre for Microbiology, Instituto de Salud Carlos III, Carretera Majadahonda-Pozuelo, 28222 Madrid, Spain;
- Correspondence: (N.T.-C.); (Ó.Z.)
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7
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Cui JY, Lisi GP. Molecular Level Insights Into the Structural and Dynamic Factors Driving Cytokine Function. Front Mol Biosci 2021; 8:773252. [PMID: 34760929 PMCID: PMC8573031 DOI: 10.3389/fmolb.2021.773252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 10/06/2021] [Indexed: 11/16/2022] Open
Abstract
Cytokines are key mediators of cellular communication and regulators of biological advents. The timing, quantity and localization of cytokines are key features in producing specific biological outcomes, and thus have been thoroughly studied and reviewed while continuing to be a focus of the cytokine biology community. Due to the complexity of cellular signaling and multitude of factors that can affect signaling outcomes, systemic level studies of cytokines are ongoing. Despite their small size, cytokines can exhibit structurally promiscuous and dynamic behavior that plays an equally important role in biological activity. In this review using case studies, we highlight the recent insight gained from observing cytokines through a molecular lens and how this may complement a system-level understanding of cytokine biology, explain diversity of downstream signaling events, and inform therapeutic and experimental development.
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Affiliation(s)
- Jennifer Y Cui
- Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, RI, United States
| | - George P Lisi
- Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, RI, United States
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8
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Sato K, Matsumoto I, Suzuki K, Tamura A, Shiraishi A, Kiyonari H, Kasamatsu J, Yamamoto H, Miyasaka T, Tanno D, Miyahara A, Zong T, Kagesawa T, Oniyama A, Kawamura K, Kitai Y, Umeki A, Kanno E, Tanno H, Ishii K, Tsukita S, Kawakami K. Deficiency of lung-specific claudin-18 leads to aggravated infection with Cryptococcus deneoformans through dysregulation of the microenvironment in lungs. Sci Rep 2021; 11:21110. [PMID: 34702961 PMCID: PMC8548597 DOI: 10.1038/s41598-021-00708-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 10/15/2021] [Indexed: 12/25/2022] Open
Abstract
Cryptococcus deneoformans is an opportunistic fungal pathogen that infects the lungs via airborne transmission and frequently causes fatal meningoencephalitis. Claudins (Cldns), a family of proteins with 27 members found in mammals, form the tight junctions within epithelial cell sheets. Cldn-4 and 18 are highly expressed in airway tissues, yet the roles of these claudins in respiratory infections have not been clarified. In the present study, we analyzed the roles of Cldn-4 and lung-specific Cldn-18 (luCldn-18) in host defense against C. deneoformans infection. luCldn-18-deficient mice exhibited increased susceptibility to pulmonary infection, while Cldn-4-deficient mice had normal fungal clearance. In luCldn-18-deficient mice, production of cytokines including IFN-γ was significantly decreased compared to wild-type mice, although infiltration of inflammatory cells including CD4+ T cells into the alveolar space was significantly increased. In addition, luCldn-18 deficiency led to high K+ ion concentrations in bronchoalveolar lavage fluids and also to alveolus acidification. The fungal replication was significantly enhanced both in acidic culture conditions and in the alveolar spaces of luCldn-18-deficient mice, compared with physiological pH conditions and those of wild-type mice, respectively. These results suggest that luCldn-18 may affect the clinical course of cryptococcal infection indirectly through dysregulation of the alveolar space microenvironment.
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Affiliation(s)
- Ko Sato
- Department of Intelligent Network for Infection Control, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan. .,Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan.
| | - Ikumi Matsumoto
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Koya Suzuki
- Laboratory of Biological Science and Laboratory of Biosciences, Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka, Japan.,Research Institute for Diseases of Old Age and Department of Clinical Laboratory Medicine, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Atsushi Tamura
- Laboratory of Biological Science and Laboratory of Biosciences, Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka, Japan
| | - Aki Shiraishi
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Hiroshi Kiyonari
- Laboratory for Animal Resources and Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Jun Kasamatsu
- Department of Intelligent Network for Infection Control, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Hideki Yamamoto
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan.,Center for Transdisciplinary Research, Institute of Research Promotion, Niigata University, Niigata, Japan
| | - Tomomitsu Miyasaka
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai, Miyagi, Japan
| | - Daiki Tanno
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan.,Department of Clinical Laboratory, Fukushima Medical University, Fukushima, Japan
| | - Anna Miyahara
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Tong Zong
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Takafumi Kagesawa
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Akiho Oniyama
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Kotone Kawamura
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Yuki Kitai
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Aya Umeki
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Emi Kanno
- Department of Science of Nursing Practice, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Hiromasa Tanno
- Department of Science of Nursing Practice, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Keiko Ishii
- Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Sachiko Tsukita
- Laboratory of Biological Science and Laboratory of Biosciences, Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka, Japan
| | - Kazuyoshi Kawakami
- Department of Intelligent Network for Infection Control, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan.,Department of Medical Microbiology, Mycology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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9
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Toward a universal influenza virus vaccine: Some cytokines may fulfill the request. Cytokine 2021; 148:155703. [PMID: 34555604 DOI: 10.1016/j.cyto.2021.155703] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 09/06/2021] [Accepted: 09/07/2021] [Indexed: 01/21/2023]
Abstract
The influenza virus annually causes widespread damages to the health and economy of the global community. Vaccination is currently the most crucial strategy in reducing the number of patients. Genetic variations, the high diversity of pandemic viruses, and zoonoses make it challenging to select suitable strains for annual vaccine production. If new pandemic viruses emerge, it will take a long time to produce a vaccine according to the new strains. In the present study, intending to develop a universal influenza vaccine, new bicistronic DNA vaccines were developed that expressed NP or NPm antigen with one of modified IL-18/ IL-17A/ IL-22 cytokine adjuvants. NPm is a mutant form of the antigen that has the ability for cytoplasmic accumulation. In order to investigate and differentiate the role of each of the components of Th1, Th2, Th17, and Treg cellular immune systems in the performance of vaccines, Treg competent and Treg suppressed mouse groups were used. Mice were vaccinated with Foxp3-FC immunogen to produce Treg suppressed mouse groups. The potential of the vaccines to stimulate the immune system was assessed by IFN-γ/IL-17A Dual FluoroSpot. The vaccine's ability to induce humoral immune response was determined by measuring IgG1, IgG2a, and IgA-specific antibodies against the antigen. Kinetics of Th1, Th2, and Th17 cellular immune responses after vaccination, were assessed by evaluating the expression changes of IL-17A, IFN-γ, IL-18, IL-22, IL-4, and IL-2 cytokines by semi-quantitative real-time RT-PCR. To assess the vaccines' ability to induce heterosubtypic immunity, challenge tests with homologous and heterologous viruses were performed and then the virus titer was measured in the lungs of animals. Evaluation of the data obtained from this study showed that the DNA-vaccines coding NPm have more ability to induces a potent cross-cellular immune response and protective immunity than DNA-vaccines coding NP. Although the use of IL-18/ IL-17A/ IL-22 genetic adjuvants enhanced immune responses and protective immunity, Administration of NPm in combination with modified IL-18 (Igk-mIL18-IgFC) induced the most effective immunity in Treg competent mice group.
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10
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Mallela LS, Sharma P, Rao TSR, Roy S. Recombinant IL-22 promotes protection in a murine model of Aspergillus flavus keratitis and mediates host immune responses in human corneal epithelial cells. Cell Microbiol 2021; 23:e13367. [PMID: 34029434 DOI: 10.1111/cmi.13367] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 05/14/2021] [Accepted: 05/17/2021] [Indexed: 12/23/2022]
Abstract
Aspergillus flavus is a leading cause of corneal infections in India and worldwide, resulting in severe visual impairment. We studied the host immune response towards A. flavus in immortalised human corneal epithelial cells (HCEC) and found increased expression of Toll-like receptors, antimicrobial peptides and proinflammatory cytokines like IL-6 and IL-8. Differential expressions of antimicrobial peptides were determined in corneal scrapings from A. flavus keratitis patients with significantly increased expression of LL-37, S100A12 and RNase 7. Increased levels of IL-22 expression were observed both in patients with A. flavus keratitis and in experimental mice model of corneal infections along with IL-17, IL-23 and IL-18. IL-22 is an important mediator of inflammation during microbial infections, and acts primarily on fibroblasts and epithelial cells. We observed constitutive expression of IL-22 receptors in HCEC, and IL-22 mediated activation of NF-κB, MAPK pathways and STAT3, along with increased expression of antimicrobial peptides in these cells. IL-22 also efficiently lessened cell deaths in corneal epithelial cells during A. flavus infection in vitro. Furthermore, recombinant IL-22 reduced fungal burden and corneal opacity in an experimental murine model of A. flavus keratitis.
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Affiliation(s)
| | - Prerana Sharma
- Prof. Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, India
- Department of Animal Sciences, University of Hyderabad, Hyderabad, India
| | | | - Sanhita Roy
- Prof. Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, India
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11
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Antifungal activity of dendritic cell lysosomal proteins against Cryptococcus neoformans. Sci Rep 2021; 11:13619. [PMID: 34193926 PMCID: PMC8245489 DOI: 10.1038/s41598-021-92991-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 06/14/2021] [Indexed: 12/17/2022] Open
Abstract
Cryptococcal meningitis is a life-threatening disease among immune compromised individuals that is caused by the opportunistic fungal pathogen Cryptococcus neoformans. Previous studies have shown that the fungus is phagocytosed by dendritic cells (DCs) and trafficked to the lysosome where it is killed by both oxidative and non-oxidative mechanisms. While certain molecules from the lysosome are known to kill or inhibit the growth of C. neoformans, the lysosome is an organelle containing many different proteins and enzymes that are designed to degrade phagocytosed material. We hypothesized that multiple lysosomal components, including cysteine proteases and antimicrobial peptides, could inhibit the growth of C. neoformans. Our study identified the contents of the DC lysosome and examined the anti-cryptococcal properties of different proteins found within the lysosome. Results showed several DC lysosomal proteins affected the growth of C. neoformans in vitro. The proteins that killed or inhibited the fungus did so in a dose-dependent manner. Furthermore, the concentration of protein needed for cryptococcal inhibition was found to be non-cytotoxic to mammalian cells. These data show that many DC lysosomal proteins have antifungal activity and have potential as immune-based therapeutics.
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12
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Ueno K, Otani Y, Yanagihara N, Urai M, Nagamori A, Sato-Fukushima M, Shimizu K, Saito N, Miyazaki Y. Cryptococcus gattii evades CD11b-mediated fungal recognition by coating itself with capsular polysaccharides. Eur J Immunol 2021; 51:2281-2295. [PMID: 33728652 DOI: 10.1002/eji.202049042] [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: 10/30/2020] [Revised: 01/25/2021] [Accepted: 03/10/2021] [Indexed: 12/15/2022]
Abstract
Cryptococcus gattii is a capsular pathogenic fungus causing life-threatening cryptococcosis. Although the capsular polysaccharides (CPs) of C. gattii are considered as virulence factors, the physiological significance of CP biosynthesis and of CPs themselves is not fully understood, with many conflicting data reported. First, we demonstrated that CAP gene deletant of C. gattii completely lacked capsule layer and its virulence, and that the strain was susceptible to host-related factors including oxidizing, hypoxic, and hypotrophic conditions in vitro. Extracellular CPs recovered from culture supernatant bound specifically to C. gattii acapsular strains, not to other fungi and immune cells, and rendered them the immune escape effects. In fact, dendritic cells (DCs) did not efficiently uptake the CP-treated acapsular strains, which possessed no visible capsule layer, and a decreased amount of phosphorylated proteins and cytokine levels after the stimulation. DCs recognized C. gattii acapuslar cells via an immune receptor CD11b- and Syk-related pathway; however, CD11b did not bind to CP-treated acapsular cells. These results suggested that CPs support immune evasion by coating antigens on C. gattii and blocking the interaction between CD11b and C. gattii cells. Here, we describe the importance of CPs in pathogenicity and immune evasion mechanisms of C. gattii.
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Affiliation(s)
- Keigo Ueno
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Yoshiko Otani
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan.,Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Katsushika-ku, Tokyo, Japan
| | - Nao Yanagihara
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan.,Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Katsushika-ku, Tokyo, Japan
| | - Makoto Urai
- Department of Chemistry for Life Sciences and Agriculture, Faculty of Life Sciences, Tokyo University of Agriculture, Setagaya-ku, Tokyo, Japan
| | - Akiko Nagamori
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Miyuki Sato-Fukushima
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Kiminori Shimizu
- Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Katsushika-ku, Tokyo, Japan
| | - Noriko Saito
- Laboratory of Electron Microscopy, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Yoshitsugu Miyazaki
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
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13
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Elkins LL, Dolan MC. Plant production and functional characterization of catfish interleukin-22 as a natural immune stimulant for aquaculture fish. J Biotechnol 2021; 325:233-240. [PMID: 33069777 DOI: 10.1016/j.jbiotec.2020.10.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 09/17/2020] [Accepted: 10/12/2020] [Indexed: 12/18/2022]
Abstract
As the world population increases and wild caught fisheries decline, aquaculture offers a sustainable solution addressing this global challenge. However, disease management remains difficult. With limited options, there is a need for innovative solutions. The cytokine interleukin-22 (IL-22) has emerged as a possible therapeutic target for fish and has been correlated with protection under pathogen challenge. Plant-based production systems have the potential to effectively manufacture and bring unique efficacy-enhancing features to the aquaculture industry; namely, the advantages of low cost for this commodity market, ready scalability, and reduced environmental impact. Catfish IL-22 produced at significant yield and purity highlights the use of plants as a promising production platform for therapeutic proteins with utility to the aquaculture industry. Purified cfIL-22 shows similar in vitro bioactivity to its mammalian homolog that include increased proliferation of catfish cells highlighting the tissue preservation capabilities associated with this protein. Recombinant cfIL-22 also upregulated expression of genes encoding a tissue repair protein, fibronectin, an antimicrobial peptide, Natural killer lysin-1, and a common innate immune protein, interferon. These findings support plant-made recombinant catfish interleukin-22 as a potential therapeutic for the aquaculture industry and further analysis of this protein for promoting animal health.
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Affiliation(s)
- Lana L Elkins
- Molecular Biosciences Program, Jonesboro, Arkansas, 72401, United States; Department of Biological Sciences, Arkansas State University, Jonesboro, Arkansas, 72401, United States
| | - Maureen C Dolan
- Molecular Biosciences Program, Jonesboro, Arkansas, 72401, United States; Arkansas Biosciences Institute, Jonesboro, Arkansas, 72401, United States; Department of Biological Sciences, Arkansas State University, Jonesboro, Arkansas, 72401, United States.
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14
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Limited Role of Mincle in the Host Defense against Infection with Cryptococcus deneoformans. Infect Immun 2020; 88:IAI.00400-20. [PMID: 32868343 DOI: 10.1128/iai.00400-20] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 08/26/2020] [Indexed: 12/19/2022] Open
Abstract
Cryptococcus deneoformans is an opportunistic fungal pathogen that frequently causes fatal meningoencephalitis in patients with impaired cell-mediated immune responses such as AIDS. Caspase-associated recruitment domain 9 (CARD9) plays a critical role in the host defense against cryptococcal infection, suggesting the involvement of one or more C-type lectin receptors (CLRs). In the present study, we analyzed the role of macrophage-inducible C-type lectin (Mincle), one of the CLRs, in the host defense against C. deneoformans infection. Mincle expression in the lungs of wild-type (WT) mice was increased in the early stage of cryptococcal infection in a CARD9-dependent manner. In Mincle gene-disrupted (Mincle KO) mice, the clearance of this fungus, pathological findings, Th1/Th2 response, and antimicrobial peptide production in the infected lungs were nearly comparable to those in WT mice. However, the production of interleukin-22 (IL-22), tumor necrosis factor alpha (TNF-α), and IL-6 and the expression of AhR were significantly decreased in the lungs of Mincle KO mice compared to those of WT mice. In in vitro experiments, TNF-α production by bone marrow-derived dendritic cells was significantly decreased in Mincle KO mice. In addition, the disrupted lysates of C. deneoformans, but not those of whole yeast cells, activated Mincle-triggered signaling in an assay with a nuclear factor of activated T cells (NFAT)-green fluorescent protein (GFP) reporter cells expressing this receptor. These results suggest that Mincle may be involved in the production of Th22-related cytokines at the early stage of cryptococcal infection, although its role may be limited in the host defense against infection with C. deneoformans.
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Dellière S, Sze Wah Wong S, Aimanianda V. Soluble mediators in anti-fungal immunity. Curr Opin Microbiol 2020; 58:24-31. [PMID: 32604018 DOI: 10.1016/j.mib.2020.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/11/2020] [Accepted: 05/13/2020] [Indexed: 02/07/2023]
Abstract
Although soluble mediators of our innate immune system have a substantial impact on invading microbes, their role against fungal pathogens has been underexplored. Constituting the humoral immunity, soluble mediators comprise the complement system, collectins, acute-phase proteins, antibodies and antimicrobial peptides. These components can prevent fungal infection either by directly interacting with invading microbes, leading to their aggregation (microbistatic), destruction (microbicidal) or linking them to cellular immunity. The composition of soluble-mediator varies with human body-fluids, resulting in different antifungal mechanisms. Moreover, cellular immune system deploys both oxidative and non-oxidative mechanisms to destroy extracellular or internalized fungal pathogens; however, cellular immune activation is mainly influenced as well as regulated by soluble mediators. This review outlines the antifungal mechanism employed, directly or indirectly, by soluble mediators, and in response, the evading strategies of the fungal pathogens.
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Affiliation(s)
- Sarah Dellière
- Institut Pasteur, Molecular Mycology Unit, UMR2000, CNRS, Paris, France; Parasitology-Mycoloy Laboratory, Groupe Hospitalier Saint-Louis-Lariboisière-Fernand-Widal, Assistance Publique-Hôpitaux de Paris, Université de Paris, Paris, France
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16
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Prado MK, Fontanari C, Souza CO, Gardinassi LG, Zoccal KF, de Paula-Silva FW, Peti AP, Sorgi CA, Meirelles AF, Ramos SG, Alves-Filho JC, Faccioli LH. IL-22 Promotes IFN-γ-Mediated Immunity against Histoplasma capsulatum Infection. Biomolecules 2020; 10:E865. [PMID: 32517114 PMCID: PMC7356283 DOI: 10.3390/biom10060865] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/28/2020] [Accepted: 06/02/2020] [Indexed: 12/13/2022] Open
Abstract
Histoplasma capsulatum is the agent of histoplasmosis, one of the most frequent mycoses in the world. The infection initiates with fungal spore inhalation, transformation into yeasts in the lungs and establishment of a granulomatous disease, which is characterized by a Th1 response. The production of Th1 signature cytokines, such as IFN-γ, is crucial for yeast clearance from the lungs, and to prevent dissemination. Recently, it was demonstrated that IL-17, a Th17 signature cytokine, is also important for fungal control, particularly in the absence of Th1 response. IL-22 is another cytokine with multiple functions on host response and disease progression. However, little is known about the role of IL-22 during histoplasmosis. In this study, we demonstrated that absence of IL-22 affected the clearance of yeasts from the lungs and increased the spreading to the spleen. In addition, IL-22 deficient mice (Il22-/-) succumbed to infection, which correlated with reductions in the numbers of CD4+ IFN-γ+ T cells, reduced IFN-γ levels, and diminished nitric oxide synthase type 2 (NOS2) expression in the lungs. Importantly, treatment with rIFN-γ mitigated the susceptibility of Il22-/- mice to H. capsulatum infection. These data indicate that IL-22 is crucial for IFN-γ/NO production and resistance to experimental histoplasmosis.
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Affiliation(s)
- Morgana K.B. Prado
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas da Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil; (M.K.B.P.); (C.F.); (C.O.S.S.); (L.G.G.); (K.F.Z.); (F.W.G.P.-S.); (A.P.F.P.); (C.A.S.); (A.F.G.M.)
- Programa de Pós-Graduação em Imunologia Básica e Aplicada da Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14049-900, Brazil
| | - Caroline Fontanari
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas da Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil; (M.K.B.P.); (C.F.); (C.O.S.S.); (L.G.G.); (K.F.Z.); (F.W.G.P.-S.); (A.P.F.P.); (C.A.S.); (A.F.G.M.)
| | - Camila O.S. Souza
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas da Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil; (M.K.B.P.); (C.F.); (C.O.S.S.); (L.G.G.); (K.F.Z.); (F.W.G.P.-S.); (A.P.F.P.); (C.A.S.); (A.F.G.M.)
- Programa de Pós-Graduação em Imunologia Básica e Aplicada da Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14049-900, Brazil
| | - Luiz G. Gardinassi
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas da Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil; (M.K.B.P.); (C.F.); (C.O.S.S.); (L.G.G.); (K.F.Z.); (F.W.G.P.-S.); (A.P.F.P.); (C.A.S.); (A.F.G.M.)
| | - Karina F. Zoccal
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas da Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil; (M.K.B.P.); (C.F.); (C.O.S.S.); (L.G.G.); (K.F.Z.); (F.W.G.P.-S.); (A.P.F.P.); (C.A.S.); (A.F.G.M.)
| | - Francisco W.G. de Paula-Silva
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas da Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil; (M.K.B.P.); (C.F.); (C.O.S.S.); (L.G.G.); (K.F.Z.); (F.W.G.P.-S.); (A.P.F.P.); (C.A.S.); (A.F.G.M.)
| | - Ana P.F. Peti
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas da Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil; (M.K.B.P.); (C.F.); (C.O.S.S.); (L.G.G.); (K.F.Z.); (F.W.G.P.-S.); (A.P.F.P.); (C.A.S.); (A.F.G.M.)
| | - Carlos A. Sorgi
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas da Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil; (M.K.B.P.); (C.F.); (C.O.S.S.); (L.G.G.); (K.F.Z.); (F.W.G.P.-S.); (A.P.F.P.); (C.A.S.); (A.F.G.M.)
| | - Alyne F.G. Meirelles
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas da Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil; (M.K.B.P.); (C.F.); (C.O.S.S.); (L.G.G.); (K.F.Z.); (F.W.G.P.-S.); (A.P.F.P.); (C.A.S.); (A.F.G.M.)
| | - Simone G. Ramos
- Departamento de Patologia e Medicina Legal da Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14049-900, Brazil;
| | - José C. Alves-Filho
- Departamento de Farmacologia da Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14049-900, Brazil;
| | - Lúcia H. Faccioli
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas da Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14040-903, Brazil; (M.K.B.P.); (C.F.); (C.O.S.S.); (L.G.G.); (K.F.Z.); (F.W.G.P.-S.); (A.P.F.P.); (C.A.S.); (A.F.G.M.)
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Molina MF, Abdelnabi MN, Fabre T, Shoukry NH. Type 3 cytokines in liver fibrosis and liver cancer. Cytokine 2019; 124:154497. [PMID: 30097286 DOI: 10.1016/j.cyto.2018.07.028] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 07/23/2018] [Accepted: 07/25/2018] [Indexed: 12/12/2022]
Abstract
The type 3 cytokines IL-17 and IL-22 play a crucial, well synchronized physiological role in wound healing and repairing tissue damage due to infections or injury at barrier surfaces. These cytokines act on epithelial cells to induce secretion of early immune mediators, recruitment of inflammatory cells to the site of injury, and to trigger tissue repair mechanisms. However, if the damage persists or if these cytokines are dysregulated, then they contribute to a number of inflammatory pathologies, autoimmune conditions and cancer. The liver is a multifunctional organ that plays an essential role in metabolism, detoxification, and immune surveillance. It is also exposed to a variety of pathogens, toxins and injuries. Over the past decade, IL-17 and IL-22 have been implicated in various aspects of liver inflammation. IL-17 is upregulated in chronic liver injury and associated with liver disease progression. In contrast, IL-22 was shown to be hepatoprotective during acute liver injury but exhibited inflammatory effects in other models. Furthermore, IL-22 and IL-17 are both associated with poor prognosis in liver cancer. Finally, the regulatory mechanisms governing the physiological versus the pathological role of these two cytokines during acute and chronic liver injury remain poorly understood. In this review, we will summarize the current state of knowledge about IL-17 and IL-22 in wound healing during acute and chronic liver injury, their contribution to pathogenesis, their regulation, and their role in the transition from advanced liver disease to liver cancer.
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Affiliation(s)
- Manuel Flores Molina
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada; Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, Québec, Canada
| | - Mohamed N Abdelnabi
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada; Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, Québec, Canada
| | - Thomas Fabre
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada; Département de microbiologie, infectiologie et immunologie, Faculté de médecine, Université de Montréal, Montréal, Québec, Canada
| | - Naglaa H Shoukry
- Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada; Département de médecine, Faculté de médecine, Université de Montréal, Montréal, Québec, Canada.
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Abstract
Helicobacter pylori is a Gram-negative bacterium that infects the gastric epithelia of its human host. Everyone who is colonized with these pathogenic bacteria can develop gastric inflammation, termed gastritis. Additionally, a small proportion of colonized people develop more adverse outcomes, including gastric ulcer disease, gastric adenocarcinoma, or gastric mucosa-associated lymphoid tissue lymphoma. The development of these adverse outcomes is dependent on the establishment of a chronic inflammatory response. The development and control of this chronic inflammatory response are significantly impacted by CD4+ T helper cell activity. Noteworthy, T helper 17 (Th17) cells, a proinflammatory subset of CD4+ T cells, produce several proinflammatory cytokines that activate innate immune cell antimicrobial activity, drive a pathogenic immune response, regulate B cell responses, and participate in wound healing. Therefore, this review was written to take an intricate look at the involvement of Th17 cells and their affiliated cytokines (interleukin-17A [IL-17A], IL-17F, IL-21, IL-22, and IL-26) in regulating the immune response to H. pylori colonization and carcinogenesis.
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Janowitz C, Nakamura YK, Metea C, Gligor A, Yu W, Karstens L, Rosenbaum JT, Asquith M, Lin P. Disruption of Intestinal Homeostasis and Intestinal Microbiota During Experimental Autoimmune Uveitis. Invest Ophthalmol Vis Sci 2019; 60:420-429. [PMID: 30695094 PMCID: PMC6353239 DOI: 10.1167/iovs.18-24813] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Purpose We determine the changes in intestinal microbiota and/or disruptions in intestinal homeostasis during uveitis. Methods Experimental autoimmune uveitis (EAU) was induced in B10.RIII mice with coadministration of interphotoreceptor retinoid-binding protein peptide (IRBP) and killed mycobacterial antigen (MTB) as an adjuvant. Using 16S rRNA gene sequencing, we looked at intestinal microbial differences during the course of uveitis, as well as intestinal morphologic changes, changes in intestinal permeability by FITC-dextran leakage, antimicrobial peptide expression in the gastrointstinal tract, and T lymphocyte prevalence before and at peak intraocular inflammation. Results We demonstrate that increased intestinal permeability and antimicrobial peptide expression in the intestinal tract coincide in timing with increased effector T cells in the mesenteric lymph nodes, during the early stages of uveitis, before peak inflammation. Morphologic changes in the intestine were most prominent during this phase, but also occurred with adjuvant MTB alone, whereas increased intestinal permeability was found only in IRBP-immunized mice that develop uveitis. We also demonstrate that the intestinal microbiota were altered during the course of uveitis, and that some of these changes are specific to uveitic animals, whereas others are influenced by adjuvant MTB alone. Intestinal permeability peaked at 2 weeks, coincident with an increase in intestinal bacterial strain differences, peak lipocalin production, and peak uveitis. Conclusions An intestinal dysbiosis accompanies a disruption in intestinal homeostasis in autoimmune uveitis, although adjuvant MTB alone promotes intestinal disruption as well. This may indicate a novel axis for future therapeutic targeting experimentally or clinically.
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Affiliation(s)
- Cathleen Janowitz
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Yukiko K Nakamura
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Christina Metea
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Abigail Gligor
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - William Yu
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
| | - Lisa Karstens
- Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, Oregon, United States
| | - James T Rosenbaum
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States.,Division of Arthritis and Rheumatic Diseases, Department of Medicine, Oregon Health & Science University, Portland, Oregon, United States.,Devers Eye Institute, Portland, Oregon, United States
| | - Mark Asquith
- Division of Arthritis and Rheumatic Diseases, Department of Medicine, Oregon Health & Science University, Portland, Oregon, United States
| | - Phoebe Lin
- Casey Eye Institute, Oregon Health & Science University, Portland, Oregon, United States
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20
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Coorens M, Rao A, Gräfe SK, Unelius D, Lindforss U, Agerberth B, Mjösberg J, Bergman P. Innate lymphoid cell type 3-derived interleukin-22 boosts lipocalin-2 production in intestinal epithelial cells via synergy between STAT3 and NF-κB. J Biol Chem 2019; 294:6027-6041. [PMID: 30782844 PMCID: PMC6463718 DOI: 10.1074/jbc.ra118.007290] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 01/28/2019] [Indexed: 12/16/2022] Open
Abstract
Escherichia coli and Klebsiella pneumoniae are opportunistic pathogens that are commonly associated with infections at mucosal surfaces, such as the lung or the gut. The host response against these types of infections includes the release of epithelial-derived antimicrobial factors such as lipocalin-2 (LCN-2), a protein that specifically inhibits the iron acquisition of Enterobacteriaceae by binding and neutralizing the bacterial iron-scavenging molecule enterobactin. Regulation of epithelial antimicrobial responses, including the release of LCN-2, has previously been shown to depend on IL-22, a cytokine produced by innate lymphoid cells type 3 (ILC3) during Enterobacteriaceae infections. However, much remains unknown about the extent to which antimicrobial responses are regulated by IL-22 and how IL-22 regulates the expression and production of LCN-2 in intestinal epithelial cells (IECs). Our study demonstrates how IL-22-induced activation of STAT3 synergizes with NF-κB-activating cytokines to enhance LCN-2 expression in human IECs and elucidates how ILC3 are involved in LCN-2-mediated host defense against Enterobacteriaceae. Together, these results provide new insight into the role of ILC3 in regulating LCN-2 expression in human IECs and could prove useful in future studies aimed at understanding the host response against Enterobacteriaceae as well as for the development of antimicrobial therapies against Enterobacteriaceae-related infections.
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Affiliation(s)
- Maarten Coorens
- From the Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, 141 86 Stockholm, Sweden
| | - Anna Rao
- the Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Stefanie Katharina Gräfe
- From the Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, 141 86 Stockholm, Sweden
| | - Daniel Unelius
- From the Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, 141 86 Stockholm, Sweden
| | - Ulrik Lindforss
- the Department of Clinical and Experimental Medicine, Linköping University, 581 83 Linköping, Sweden
| | - Birgitta Agerberth
- From the Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, 141 86 Stockholm, Sweden
| | - Jenny Mjösberg
- the Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Peter Bergman
- From the Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institutet, 141 86 Stockholm, Sweden.
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21
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Barthelemy A, Sencio V, Soulard D, Deruyter L, Faveeuw C, Le Goffic R, Trottein F. Interleukin-22 Immunotherapy during Severe Influenza Enhances Lung Tissue Integrity and Reduces Secondary Bacterial Systemic Invasion. Infect Immun 2018; 86:e00706-17. [PMID: 29661933 PMCID: PMC6013680 DOI: 10.1128/iai.00706-17] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 04/03/2018] [Indexed: 12/15/2022] Open
Abstract
Severe bacterial (pneumococcal) infections are commonly associated with influenza and are significant contributors to the excess morbidity and mortality of influenza. Disruption of lung tissue integrity during influenza participates in bacterial pulmonary colonization and dissemination out of the lungs. Interleukin-22 (IL-22) has gained considerable interest in anti-inflammatory and anti-infection immunotherapy over the last decade. In the current study, we investigated the effect of exogenous IL-22 delivery on the outcome of pneumococcal superinfection postinfluenza. Our data show that exogenous treatment of influenza virus-infected mice with recombinant IL-22 reduces bacterial dissemination out of the lungs but is without effect on pulmonary bacterial burden. Reduced systemic bacterial dissemination was linked to reinforced pulmonary barrier functions, as revealed by total protein measurement in the bronchoalveolar fluids, intratracheal fluorescein isothiocyanate-dextran tracking, and histological approaches. We describe an IL-22-specific gene signature in the lung tissue of influenza A virus (IAV)-infected (and naive) mice that might explain the observed effects. Indeed, exogenous IL-22 modulates the gene expression profile in a way that suggests reinforcement of tissue integrity. Our results open the way to alternative approaches for limiting postinfluenza bacterial superinfection, particularly, systemic bacterial invasion.
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Affiliation(s)
- Adeline Barthelemy
- Universitaire de Lille, U1019, UMR 8204, Centre d'Infection et d'Immunité de Lille, Lille, France
- Centre National de la Recherche Scientifique, UMR 8204, Lille, France
- Institut National de la Santé et de la Recherche Médicale U1019, Lille, France
- Centre Hospitalier Universitaire de Lille, Lille, France
- Institut Pasteur de Lille, Lille, France
| | - Valentin Sencio
- Universitaire de Lille, U1019, UMR 8204, Centre d'Infection et d'Immunité de Lille, Lille, France
- Centre National de la Recherche Scientifique, UMR 8204, Lille, France
- Institut National de la Santé et de la Recherche Médicale U1019, Lille, France
- Centre Hospitalier Universitaire de Lille, Lille, France
- Institut Pasteur de Lille, Lille, France
| | - Daphnée Soulard
- Universitaire de Lille, U1019, UMR 8204, Centre d'Infection et d'Immunité de Lille, Lille, France
- Centre National de la Recherche Scientifique, UMR 8204, Lille, France
- Institut National de la Santé et de la Recherche Médicale U1019, Lille, France
- Centre Hospitalier Universitaire de Lille, Lille, France
- Institut Pasteur de Lille, Lille, France
| | - Lucie Deruyter
- Universitaire de Lille, U1019, UMR 8204, Centre d'Infection et d'Immunité de Lille, Lille, France
- Centre National de la Recherche Scientifique, UMR 8204, Lille, France
- Institut National de la Santé et de la Recherche Médicale U1019, Lille, France
- Centre Hospitalier Universitaire de Lille, Lille, France
- Institut Pasteur de Lille, Lille, France
| | - Christelle Faveeuw
- Universitaire de Lille, U1019, UMR 8204, Centre d'Infection et d'Immunité de Lille, Lille, France
- Centre National de la Recherche Scientifique, UMR 8204, Lille, France
- Institut National de la Santé et de la Recherche Médicale U1019, Lille, France
- Centre Hospitalier Universitaire de Lille, Lille, France
- Institut Pasteur de Lille, Lille, France
| | - Ronan Le Goffic
- Molecular Virology and Immunology, Institut National de la Recherche Agronomique, Université Paris-Saclay, Jouy-en-Josas, France
| | - François Trottein
- Universitaire de Lille, U1019, UMR 8204, Centre d'Infection et d'Immunité de Lille, Lille, France
- Centre National de la Recherche Scientifique, UMR 8204, Lille, France
- Institut National de la Santé et de la Recherche Médicale U1019, Lille, France
- Centre Hospitalier Universitaire de Lille, Lille, France
- Institut Pasteur de Lille, Lille, France
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22
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Bosso M, Ständker L, Kirchhoff F, Münch J. Exploiting the human peptidome for novel antimicrobial and anticancer agents. Bioorg Med Chem 2017; 26:2719-2726. [PMID: 29122440 DOI: 10.1016/j.bmc.2017.10.038] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 10/28/2017] [Indexed: 12/22/2022]
Abstract
Infectious diseases and cancers are leading causes of death and pose major challenges to public health. The human peptidome encompasses millions of compounds that display an enormous structural and functional diversity and represents an excellent source for the discovery of endogenous agents with antimicrobial and/or anticancer activity. Here, we discuss how to exploit the human peptidome for novel antimicrobial and anticancer agents through the generation of peptide libraries from human body fluids and tissues and stepwise purification of bioactive compounds.
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Affiliation(s)
- Matteo Bosso
- Institute of Molecular Virology, Ulm University Medical Center, Meyerhofstrasse 1, 89081 Ulm, Germany
| | - Ludger Ständker
- Ulm Peptide Pharmaceuticals, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany; Core Facility Functional Peptidomics, Ulm University Medical Center, Albert-Einstein-Allee 47, 89081 Ulm, Germany
| | - Frank Kirchhoff
- Institute of Molecular Virology, Ulm University Medical Center, Meyerhofstrasse 1, 89081 Ulm, Germany; Ulm Peptide Pharmaceuticals, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany
| | - Jan Münch
- Institute of Molecular Virology, Ulm University Medical Center, Meyerhofstrasse 1, 89081 Ulm, Germany; Ulm Peptide Pharmaceuticals, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany; Core Facility Functional Peptidomics, Ulm University Medical Center, Albert-Einstein-Allee 47, 89081 Ulm, Germany.
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23
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Le Rouzic O, Pichavant M, Frealle E, Guillon A, Si-Tahar M, Gosset P. Th17 cytokines: novel potential therapeutic targets for COPD pathogenesis and exacerbations. Eur Respir J 2017; 50:1602434. [PMID: 29025886 DOI: 10.1183/13993003.02434-2016] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 07/14/2017] [Indexed: 12/31/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory disease of the airways caused mainly by cigarette smoke exposure. COPD progression is marked by exacerbations of the disease, often associated with infections. Recent data show the involvement in COPD pathophysiology of interleukin (IL)-17 and IL-22, two cytokines that are important in the control of lung inflammation and infection. During the initiation and progression of the disease, increased IL-17 secretion causes neutrophil recruitment, leading to chronic inflammation, airways obstruction and emphysema. In the established phase of COPD, a defective IL-22 response facilitates pathogen-associated infections and disease exacerbations. Altered production of these cytokines involves a complex network of immune cells and dysfunction of antigen-presenting cells. In this review, we describe current knowledge on the involvement of IL-17 and IL-22 in COPD pathophysiology at steady state and during exacerbations, and discuss implications for COPD management and future therapeutic approaches.
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Affiliation(s)
- Olivier Le Rouzic
- Université de Lille, U1019 - UMR 8204, Lung Infection and Innate Immunity, Center for Infection and Immunity of Lille (CIIL), Lille, France
- CNRS, UMR 8204, Lille, France
- INSERM, U1019, Lille, France
- Institut Pasteur de Lille, Lille, France
- Service de Pneumologie Immunologie et Allergologie, CHU Lille, Lille, France
| | - Muriel Pichavant
- Université de Lille, U1019 - UMR 8204, Lung Infection and Innate Immunity, Center for Infection and Immunity of Lille (CIIL), Lille, France
- CNRS, UMR 8204, Lille, France
- INSERM, U1019, Lille, France
- Institut Pasteur de Lille, Lille, France
| | - Emilie Frealle
- Université de Lille, U1019 - UMR 8204, Lung Infection and Innate Immunity, Center for Infection and Immunity of Lille (CIIL), Lille, France
- CNRS, UMR 8204, Lille, France
- INSERM, U1019, Lille, France
- Institut Pasteur de Lille, Lille, France
- Laboratoire de Parasitologie et Mycologie Médicale, CHU Lille, Lille, France
| | - Antoine Guillon
- Service de Réanimation Polyvalente, CHRU de Tours, Tours, France
- Inserm, U1100 - Centre d'Etude des Pathologies Respiratoires, Tours, France
- Université François Rabelais, Tours, France
| | - Mustapha Si-Tahar
- Inserm, U1100 - Centre d'Etude des Pathologies Respiratoires, Tours, France
- Université François Rabelais, Tours, France
| | - Philippe Gosset
- Université de Lille, U1019 - UMR 8204, Lung Infection and Innate Immunity, Center for Infection and Immunity of Lille (CIIL), Lille, France
- CNRS, UMR 8204, Lille, France
- INSERM, U1019, Lille, France
- Institut Pasteur de Lille, Lille, France
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24
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Short chain fatty acids ameliorate immune-mediated uveitis partially by altering migration of lymphocytes from the intestine. Sci Rep 2017; 7:11745. [PMID: 28924192 PMCID: PMC5603543 DOI: 10.1038/s41598-017-12163-3] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 09/04/2017] [Indexed: 02/07/2023] Open
Abstract
Short chain fatty acids (SCFA) are metabolites of intestinal bacteria resulting from fermentation of dietary fiber. SCFA are protective in various animal models of inflammatory disease. We investigated the effects of exogenous administration of SFCAs, particularly propionate, on uveitis using an inducible model of experimental autoimmune uveitis (EAU). Oral SCFA administration attenuated uveitis severity in a mouse strain-dependent manner through regulatory T cell induction among lymphocytes in the intestinal lamina propria (LPL) and cervical lymph nodes (CLN). SCFA also suppressed effector T cell induction in the CLN and mesenteric lymph nodes (MLN). Alterations in intestinal morphology and gene expression demonstrated in the EAU model prior to the onset of uveitis were blunted by oral SCFA administration. Using a Kaede transgenic mouse, we demonstrated enhanced leukocyte trafficking between the intestine and the eye in EAU. Propionate suppressed T effector cell migration between the intestine and the spleen in EAU Kaede mice. In conclusion, our findings support exogenous administration of SCFAs as a potential treatment strategy for uveitis through the stabilization of subclinical intestinal alterations that occur in inflammatory diseases including uveitis, as well as prevention of trafficking of leukocytes between the gastrointestinal tract and extra-intestinal tissues.
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25
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Abstract
Cryptococcus species are encapsulated fungi found in the environment that predominantly cause disease in immunocompromised hosts after inhalation into the lungs. Even with contemporary antifungal regimens, patients with cryptococcosis continue to have high morbidity and mortality rates. The development of more effective therapies may depend on our understanding of the cellular and molecular mechanisms by which the host promotes sterilizing immunity against the fungus. This review will highlight our current knowledge of how Cryptococcus, primarily the species C. neoformans, is sensed by the mammalian host and how subsequent signaling pathways direct the anti-cryptococcal response by effector cells of the innate immune system.
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Affiliation(s)
- Lena J Heung
- Infectious Diseases Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
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26
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Dixon BREA, Radin JN, Piazuelo MB, Contreras DC, Algood HMS. IL-17a and IL-22 Induce Expression of Antimicrobials in Gastrointestinal Epithelial Cells and May Contribute to Epithelial Cell Defense against Helicobacter pylori. PLoS One 2016; 11:e0148514. [PMID: 26867135 PMCID: PMC4750979 DOI: 10.1371/journal.pone.0148514] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 01/19/2016] [Indexed: 12/11/2022] Open
Abstract
Helicobacter pylori colonization of the human stomach can lead to adverse clinical outcomes including gastritis, peptic ulcers, or gastric cancer. Current data suggest that in addition to bacterial virulence factors, the magnitude and types of immune responses influence the outcome of colonization. Specifically, CD4+ T cell responses impact the pathology elicited in response to H. pylori. Because gastritis is believed to be the initiating host response to more detrimental pathological outcomes, there has been a significant interest in pro-inflammatory T cell cytokines, including the cytokines produced by T helper 17 cells. Th17 cells produce IL-17A, IL-17F, IL-21 and IL-22. While these cytokines have been linked to inflammation, IL-17A and IL-22 are also associated with anti-microbial responses and control of bacterial colonization. The goal of this research was to determine the role of IL-22 in activation of antimicrobial responses in models of H. pylori infection using human gastric epithelial cell lines and the mouse model of H. pylori infection. Our data indicate that IL-17A and IL-22 work synergistically to induce antimicrobials and chemokines such as IL-8, components of calprotectin (CP), lipocalin (LCN) and some β-defensins in both human and primary mouse gastric epithelial cells (GEC) and gastroids. Moreover, IL-22 and IL-17A-activated GECs were capable of inhibiting growth of H. pylori in vitro. While antimicrobials were activated by IL-17A and IL-22 in vitro, using a mouse model of H. pylori infection, the data herein indicate that IL-22 deficiency alone does not render mice more susceptible to infection, change their antimicrobial gene transcription, or significantly change their inflammatory response.
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Affiliation(s)
- Beverly R. E. A. Dixon
- Department of Medicine, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Jana N. Radin
- Department of Medicine, Vanderbilt University, Nashville, Tennessee, United States of America
| | - M. Blanca Piazuelo
- Department of Medicine, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Diana C. Contreras
- Department of Pathology, Microbiology and Immunology, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Holly M. Scott Algood
- Veterans Affairs Tennessee Valley Healthcare Services, Nashville, Tennessee, United States of America
- Department of Medicine, Vanderbilt University, Nashville, Tennessee, United States of America
- Department of Pathology, Microbiology and Immunology, Vanderbilt University, Nashville, Tennessee, United States of America
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27
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Shen L, Liu Y. Prostaglandin E2 blockade enhances the pulmonary anti-Cryptococcus neoformans immune reaction via the induction of TLR-4. Int Immunopharmacol 2015; 28:376-81. [PMID: 26122137 DOI: 10.1016/j.intimp.2015.06.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 06/18/2015] [Accepted: 06/18/2015] [Indexed: 10/23/2022]
Abstract
The present study aimed to explore whether the inhibition of prostaglandin E2 enhances pulmonary anti-Cryptococcus neoformans immunity. Lung colony forming unit (CFU) assays demonstrated that the cryptococcal infection was dramatically depressed in mice given EP2 and EP4 or single EP antagonist treatment compared to the untreated wild type mice (p<0.05), leading to the increased survival of the infected mice by 8-9 days or 2-4 days, respectively. RT-PCR and flow cytometry assays showed that the expression of IFN-γ, IL-17, IL-22 in M1 macrophages and IL-10 in M2 macrophages increased significantly at 1 week post-infection in mice with either EP2 or EP4 blockade (p<0.05). The polarization of alveolar macrophages showed that, at 1 week post infection, the alveolar macrophages in untreated wild type mice, TLR4(-/-) mice and TLR4(-/-) mice with EP2 and EP4 blockade were strongly M2 polarized, whereas the alveolar macrophages in wild type mice with EP2 and EP4 blockade were M1 polarized. In conclusion, the blockade of EP2 and EP4 promotes mouse survival after cryptococcus infection by promoting the production of cytokines via TLR4, as well as the enhanced M1 polarization of alveolar macrophages.
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Affiliation(s)
- Liyun Shen
- Department of Hematology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450014, China.
| | - Ying Liu
- Department of Pneumology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450014, China
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28
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Wozniak KL, Olszewski MA, Wormley FL. Molecules at the interface of Cryptococcus and the host that determine disease susceptibility. Fungal Genet Biol 2014; 78:87-92. [PMID: 25445308 DOI: 10.1016/j.fgb.2014.10.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 10/22/2014] [Accepted: 10/25/2014] [Indexed: 10/24/2022]
Abstract
Cryptococcus neoformans and Cryptococcus gattii, the predominant etiological agents of cryptococcosis, are fungal pathogens that cause disease ranging from a mild pneumonia to life-threatening infections of the central nervous system (CNS). Resolution or exacerbation of Cryptococcus infection is determined following complex interactions of several host and pathogen derived factors. Alternatively, interactions between the host and pathogen may end in an impasse resulting in the establishment of a sub-clinical Cryptococcus infection. The current review addresses the delicate interaction between the host and Cryptococcus-derived molecules that determine resistance or susceptibility to infection. An emphasis will be placed on data highlighted at the recent 9th International Conference on Cryptococcus and Cryptococcosis (ICCC).
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Affiliation(s)
- Karen L Wozniak
- Department of Biology, The University of Texas at San Antonio, San Antonio, TX, United States; South Texas Center for Emerging Infectious Diseases, The University of Texas at San Antonio, San Antonio, TX, United States
| | - Michal A Olszewski
- Veterans Affairs Ann Arbor Health System, Ann Arbor, MI, United States; University of Michigan Medical School, Ann Arbor, MI, United States
| | - Floyd L Wormley
- Department of Biology, The University of Texas at San Antonio, San Antonio, TX, United States; South Texas Center for Emerging Infectious Diseases, The University of Texas at San Antonio, San Antonio, TX, United States.
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