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Hill BD, Zak AJ, Raja S, Bugada LF, Rizvi SM, Roslan SB, Nguyen HN, Chen J, Jiang H, Ono A, Goldstein DR, Wen F. iGATE analysis improves the interpretability of single-cell immune landscape of influenza infection. JCI Insight 2024; 9:e172140. [PMID: 38814732 DOI: 10.1172/jci.insight.172140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024] Open
Abstract
Influenza poses a persistent health burden worldwide. To design equitable vaccines effective across all demographics, it is essential to better understand how host factors such as genetic background and aging affect the single-cell immune landscape of influenza infection. Cytometry by time-of-flight (CyTOF) represents a promising technique in this pursuit, but interpreting its large, high-dimensional data remains difficult. We have developed a new analytical approach, in silico gating annotating training elucidating (iGATE), based on probabilistic support vector machine classification. By rapidly and accurately "gating" tens of millions of cells in silico into user-defined types, iGATE enabled us to track 25 canonical immune cell types in mouse lung over the course of influenza infection. Applying iGATE to study effects of host genetic background, we show that the lower survival of C57BL/6 mice compared with BALB/c was associated with a more rapid accumulation of inflammatory cell types and decreased IL-10 expression. Furthermore, we demonstrate that the most prominent effect of aging is a defective T cell response, reducing survival of aged mice. Finally, iGATE reveals that the 25 canonical immune cell types exhibited differential influenza infection susceptibility and replication permissiveness in vivo, but neither property varied with host genotype or aging. The software is available at https://github.com/UmichWenLab/iGATE.
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Affiliation(s)
| | | | | | | | | | | | | | - Judy Chen
- Program in Immunology
- Department of Internal Medicine
| | | | - Akira Ono
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Fei Wen
- Department of Chemical Engineering
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Bongartz H, Bradfield C, Gross J, Fraser I, Nita-Lazar A, Meier-Schellersheim M. IL-10 dependent adaptation allows macrophages to adjust inflammatory responses to TLR4 stimulation history. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.28.587272. [PMID: 38654826 PMCID: PMC11037870 DOI: 10.1101/2024.03.28.587272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
During an infection, innate immune cells must adjust nature and strength of their responses to changing pathogen abundances. To determine how stimulation of the pathogen sensing TLR4 shapes subsequent macrophage responses, we systematically varied priming and restimulation concentrations of its ligand KLA. We find that different priming strengths have very distinct effects at multiple stages of the signaling response, including receptor internalization, MAPK activation, cytokine and chemokine production, and nuclear translocation and chromatin association of NFκB and IκB members. In particular, restimulation-induced TNF-α production required KLA doses equal to or greater than those used for prior exposure, indicating that macrophages can detect and adaptively respond to changing TLR4 stimuli. Interestingly, while such adaptation was dependent on the anti-inflammatory cytokine IL-10, exogenous concentrations of IL-10 corresponding to those secreted after strong priming did not exert suppressive effects on TNF-α without such prior priming, confirming the critical role of TLR4 stimulation history.
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Affiliation(s)
- H. Bongartz
- Computational Systems Biology Section, Laboratory of Immune System Biology, National Institute of Allergy and infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - C. Bradfield
- Signaling Systems Section, Laboratory of Immune System Biology, National Institute of Allergy and infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - J. Gross
- Signaling Systems Section, Laboratory of Immune System Biology, National Institute of Allergy and infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - I.D.C. Fraser
- Signaling Systems Section, Laboratory of Immune System Biology, National Institute of Allergy and infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - A. Nita-Lazar
- Functional Cellular Networks Section, Laboratory of Immune System Biology, National Institute of Allergy and infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - M. Meier-Schellersheim
- Computational Systems Biology Section, Laboratory of Immune System Biology, National Institute of Allergy and infectious Diseases, National Institutes of Health, Bethesda, MD, USA
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Maler MD, Zwick S, Kallfass C, Engelhard P, Shi H, Hellig L, Zhengyang P, Hardt A, Zissel G, Ruzsics Z, Jahnen-Dechent W, Martin SF, Nielsen PJ, Stolz D, Lopatecka J, Bastyans S, Beutler B, Schamel WW, Fejer G, Freudenberg MA. Type I Interferon, Induced by Adenovirus or Adenoviral Vector Infection, Regulates the Cytokine Response to Lipopolysaccharide in a Macrophage Type-Specific Manner. J Innate Immun 2024; 16:226-247. [PMID: 38527452 PMCID: PMC11023693 DOI: 10.1159/000538282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 03/06/2024] [Indexed: 03/27/2024] Open
Abstract
INTRODUCTION While TLR ligands derived from microbial flora and pathogens are important activators of the innate immune system, a variety of factors such as intracellular bacteria, viruses, and parasites can induce a state of hyperreactivity, causing a dysregulated and potentially life-threatening cytokine over-response upon TLR ligand exposure. Type I interferon (IFN-αβ) is a central mediator in the induction of hypersensitivity and is strongly expressed in splenic conventional dendritic cells (cDC) and marginal zone macrophages (MZM) when mice are infected with adenovirus. This study investigates the ability of adenoviral infection to influence the activation state of the immune system and underlines the importance of considering this state when planning the treatment of patients. METHODS Infection with adenovirus-based vectors (Ad) or pretreatment with recombinant IFN-β was used as a model to study hypersensitivity to lipopolysaccharide (LPS) in mice, murine macrophages, and human blood samples. The TNF-α, IL-6, IFN-αβ, and IL-10 responses induced by LPS after pretreatment were measured. Mouse knockout models for MARCO, IFN-αβR, CD14, IRF3, and IRF7 were used to probe the mechanisms of the hypersensitive reaction. RESULTS We show that, similar to TNF-α and IL-6 but not IL-10, the induction of IFN-αβ by LPS increases strongly after Ad infection. This is true both in mice and in human blood samples ex vivo, suggesting that the regulatory mechanisms seen in the mouse are also present in humans. In mice, the scavenger receptor MARCO on IFN-αβ-producing cDC and splenic marginal zone macrophages is important for Ad uptake and subsequent cytokine overproduction by LPS. Interestingly, not all IFN-αβ-pretreated macrophage types exposed to LPS exhibit an enhanced TNF-α and IL-6 response. Pretreated alveolar macrophages and alveolar macrophage-like murine cell lines (MPI cells) show enhanced responses, while bone marrow-derived and peritoneal macrophages show a weaker response. This correlates with the respective absence or presence of the anti-inflammatory IL-10 response in these different macrophage types. In contrast, Ad or IFN-β pretreatment enhances the subsequent induction of IFN-αβ in all macrophage types. IRF3 is dispensable for the LPS-induced IFN-αβ overproduction in infected MPI cells and partly dispensable in infected mice, while IRF7 is required. The expression of the LPS co-receptor CD14 is important but not absolutely required for the elicitation of a TNF-α over-response to LPS in Ad-infected mice. CONCLUSION Viral infections or application of virus-based vaccines induces type I interferon and can tip the balance of the innate immune system in the direction of hyperreactivity to a subsequent exposure to TLR ligands. The adenoviral model presented here is one example of how multiple factors, both environmental and genetic, affect the physiological responses to pathogens. Being able to measure the current reactivity state of the immune system would have important benefits for infection-specific therapies and for the prevention of vaccination-elicited adverse effects.
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Affiliation(s)
- Mareike D. Maler
- Max-Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
- Allergy Research Group, Department of Dermatology, Medical Center – University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Sophie Zwick
- Department of Pneumology, Medical Center – University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Carsten Kallfass
- Institute of Virology, Medical Center – University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Peggy Engelhard
- Department of Pneumology, Medical Center – University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Hexin Shi
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Laura Hellig
- Department of Pneumology, Medical Center – University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Pang Zhengyang
- Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Annika Hardt
- Department of Pneumology, Medical Center – University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Gernot Zissel
- Department of Pneumology, Medical Center – University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Zsolt Ruzsics
- Institute of Virology, Medical Center – University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Willi Jahnen-Dechent
- Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, Germany
| | - Stefan F. Martin
- Allergy Research Group, Department of Dermatology, Medical Center – University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Peter Jess Nielsen
- Max-Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
| | - Daiana Stolz
- Department of Pneumology, Medical Center – University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Justyna Lopatecka
- Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Faculty of Medicine, Aachen, Germany
| | - Sarah Bastyans
- Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Faculty of Medicine, Aachen, Germany
| | - Bruce Beutler
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Wolfgang W. Schamel
- Faculty of Biology, University of Freiburg, Freiburg, Germany
- Center of Chronic Immunodeficiency CCI, University Clinics and Medical Faculty, Freiburg, Germany
- School of Biomedical Sciences, Faculty of Health, University of Plymouth, Plymouth, UK
| | - György Fejer
- Max-Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
- Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Faculty of Medicine, Aachen, Germany
| | - Marina Alexandra Freudenberg
- Max-Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
- Department of Pneumology, Medical Center – University of Freiburg, Faculty of Medicine, Freiburg, Germany
- Center of Chronic Immunodeficiency CCI, University Clinics and Medical Faculty, Freiburg, Germany
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Hsu SCJ, Luu TU, Smith TD, Liu WF. Macro- and micro-scale culture environment differentially regulate the effects of crowding on macrophage function. Biotechnol Bioeng 2024; 121:306-316. [PMID: 37792882 DOI: 10.1002/bit.28554] [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: 08/23/2022] [Revised: 02/25/2023] [Accepted: 08/21/2023] [Indexed: 10/06/2023]
Abstract
Macrophages hold vital roles in immune defense, wound healing, and tissue homeostasis, and have the exquisite ability to sense and respond to dynamically changing cues in their microenvironment. Much of our understanding of their behavior has been derived from studies performed using in vitro culture systems, in which the cell environment can be precisely controlled. Recent advances in miniaturized culture platforms also offer the ability to recapitulate some features of the in vivo environment and analyze cellular responses at the single-cell level. Since macrophages are sensitive to their surrounding environments, the specific conditions in both macro- and micro-scale cultures likely contribute to observed responses. In this study, we investigate how the presence of neighboring cells influence macrophage activation following proinflammatory stimulation in both bulk and micro-scale culture. We found that in bulk cultures, higher seeding density negatively regulated the average TNF-α secretion from individual macrophages in response to inflammatory agonists, and this effect was partially caused by the reduced cell-to-media volume ratio. In contrast, studies conducted using microwells to isolate single cells and groups of cells revealed that increasing numbers of cells positively influences their inflammatory activation, suggesting that the absolute cell numbers in the system may be important. In addition, a single inflammatory cell enhanced the inflammatory state of a small group of cells. Overall, this work helps to better understand how variations of macroscopic and microscopic culture environments influence studies in macrophage biology and provides insight into how the presence of neighboring cells and the soluble environment influences macrophage activation.
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Affiliation(s)
- Ssu-Chieh J Hsu
- Department of Biomedical Engineering, University of California, Irvine, California, USA
- UCI Edwards Lifesciences Foundation Cardiovascular Innovation and Research Center, University of California, Irvine, California, USA
| | - Thuy U Luu
- Department of Biomedical Engineering, University of California, Irvine, California, USA
- UCI Edwards Lifesciences Foundation Cardiovascular Innovation and Research Center, University of California, Irvine, California, USA
| | - Tim D Smith
- Department of Biomedical Engineering, University of California, Irvine, California, USA
- UCI Edwards Lifesciences Foundation Cardiovascular Innovation and Research Center, University of California, Irvine, California, USA
| | - Wendy F Liu
- Department of Biomedical Engineering, University of California, Irvine, California, USA
- UCI Edwards Lifesciences Foundation Cardiovascular Innovation and Research Center, University of California, Irvine, California, USA
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, California, USA
- Institute for Immunology, University of California, Irvine, California, USA
- Department of Molecular Biology and Biochemistry, University of California, Irvine, California, USA
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Ghosh P, Sinha S, Katkar GD, Vo D, Taheri S, Dang D, Das S, Sahoo D. Machine learning identifies signatures of macrophage reactivity and tolerance that predict disease outcomes. EBioMedicine 2023; 94:104719. [PMID: 37516087 PMCID: PMC10388732 DOI: 10.1016/j.ebiom.2023.104719] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 07/01/2023] [Accepted: 07/03/2023] [Indexed: 07/31/2023] Open
Abstract
BACKGROUND Single-cell transcriptomic studies have greatly improved organ-specific insights into macrophage polarization states are essential for the initiation and resolution of inflammation in all tissues; however, such insights are yet to translate into therapies that can predictably alter macrophage fate. METHOD Using machine learning algorithms on human macrophages, here we reveal the continuum of polarization states that is shared across diverse contexts. A path, comprised of 338 genes accurately identified both physiologic and pathologic spectra of "reactivity" and "tolerance", and remained relevant across tissues, organs, species, and immune cells (>12,500 diverse datasets). FINDINGS This 338-gene signature identified macrophage polarization states at single-cell resolution, in physiology and across diverse human diseases, and in murine pre-clinical disease models. The signature consistently outperformed conventional signatures in the degree of transcriptome-proteome overlap, and in detecting disease states; it also prognosticated outcomes across diverse acute and chronic diseases, e.g., sepsis, liver fibrosis, aging, and cancers. Crowd-sourced genetic and pharmacologic studies confirmed that model-rationalized interventions trigger predictable macrophage fates. INTERPRETATION These findings provide a formal and universally relevant definition of macrophage states and a predictive framework (http://hegemon.ucsd.edu/SMaRT) for the scientific community to develop macrophage-targeted precision diagnostics and therapeutics. FUNDING This work was supported by the National Institutes for Health (NIH) grant R01-AI155696 (to P.G, D.S and S.D). Other sources of support include: R01-GM138385 (to D.S), R01-AI141630 (to P.G), R01-DK107585 (to S.D), and UG3TR003355 (to D.S, S.D, and P.G). D.S was also supported by two Padres Pedal the Cause awards (Padres Pedal the Cause/RADY #PTC2017 and San Diego NCI Cancer Centers Council (C3) #PTC2017). S.S, G.D.K, and D.D were supported through The American Association of Immunologists (AAI) Intersect Fellowship Program for Computational Scientists and Immunologists. We also acknowledge support from the Padres Pedal the Cause #PTC2021 and the Torey Coast Foundation, La Jolla (P.G and D.S). D.S, P.G, and S.D were also supported by the Leona M. and Harry B. Helmsley Charitable Trust.
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Affiliation(s)
- Pradipta Ghosh
- Department of Cellular and Molecular Medicine, University of California San Diego, USA; Department of Medicine, University of California San Diego, USA; Moores Cancer Center, University of California San Diego, USA.
| | - Saptarshi Sinha
- Department of Cellular and Molecular Medicine, University of California San Diego, USA; Department of Pediatrics, University of California San Diego, USA
| | - Gajanan D Katkar
- Department of Cellular and Molecular Medicine, University of California San Diego, USA
| | - Daniella Vo
- Department of Pediatrics, University of California San Diego, USA
| | - Sahar Taheri
- Department of Computer Science and Engineering, Jacob's School of Engineering, University of California San Diego, USA
| | - Dharanidhar Dang
- Department of Pediatrics, University of California San Diego, USA
| | - Soumita Das
- Moores Cancer Center, University of California San Diego, USA; Department of Pathology, University of California San Diego, USA
| | - Debashis Sahoo
- Moores Cancer Center, University of California San Diego, USA; Department of Pediatrics, University of California San Diego, USA; Department of Computer Science and Engineering, Jacob's School of Engineering, University of California San Diego, USA.
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Hui Z, Fu Y, Chen Y, Yin J, Fang H, Tu Y, Gu Y, Zhang J. Loss of TRIM24 promotes IL-10 expression via CBP/p300-dependent IFNβ1 transcription during macrophage activation. Inflamm Res 2023:10.1007/s00011-023-01751-x. [PMID: 37326695 DOI: 10.1007/s00011-023-01751-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/25/2023] [Accepted: 05/03/2023] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND As an anti-inflammatory cytokine, interleukin 10 (IL-10) plays a vital role in preventing inflammatory and autoimmune pathologies while also maintaining immune homeostasis. IL-10 production in macrophages is tightly regulated by multiple pathways. TRIM24, a member of the Transcriptional Intermediary Factor 1 (TIF1) family, contributes to antiviral immunity and macrophage M2 polarization. However, the role of TRIM24 in regulating IL-10 expression and its involvement in endotoxic shock remains unclear. METHODS In vitro, bone marrow derived macrophages cultured with GM-CSF or M-CSF were stimulated with LPS (100ng/ml). Murine models of endotoxic shock were established by challenging the mice with different dose of LPS (i.p). RTPCR, RNA sequencing, ELISA and hematoxylin and eosin staining were performed to elucidate the role and mechanisms of TRIM24 in endotoxic shock. RESULTS The expression of TRIM24 is downregulated in LPS-stimulated bone marrow-derived macrophages (BMDMs). Loss of TRIM24 boosted IL-10 expression during the late stage of LPS-stimulation in macrophages. RNA-seq analysis revealed the upregulation of IFNβ1, an upstream regulator of IL-10, in TRIM24 knockout macrophages. Treatment with C646, a CBP/p300 inhibitor, diminished the difference in both IFNβ1 and IL-10 expression between TRIM24 knockout and control macrophages. Loss of TRIM24 provided protection against LPS-induced endotoxic shock in mice. CONCLUSION Our results demonstrated that inhibiting TRIM24 promoted the expression of IFNβ1 and IL-10 during macrophage activation, therefore protecting mice from endotoxic shock. This study offers novel insights into the regulatory role of TRIM24 in IL-10 expression, making it a potentially attractive therapeutic target for inflammatory diseases.
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Affiliation(s)
- Zhaoyuan Hui
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, Zhejiang, China
- Department of Pathogenic Biology and Medical Immunology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004, China
- Department of Genetics, Institute of Genetics, School of Medicine, Zhejiang University, Hangzhou, 310058, China
- Ningxia Key Laboratory of Prevention and Control of Common Infectious Diseases, Yinchuan, 750004, China
| | - Yuanzheng Fu
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, Zhejiang, China
- Department of Genetics, Institute of Genetics, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Yunyun Chen
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, Zhejiang, China
- Department of Genetics, Institute of Genetics, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Jie Yin
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, Zhejiang, China
- Department of Genetics, Institute of Genetics, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Hui Fang
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, Zhejiang, China
- Department of Genetics, Institute of Genetics, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Yifan Tu
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, Zhejiang, China
- Department of Genetics, Institute of Genetics, School of Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Ying Gu
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, Zhejiang, China.
- Department of Genetics, Institute of Genetics, School of Medicine, Zhejiang University, Hangzhou, 310058, China.
- Zhejiang Provincial Key Lab of Genetic and Developmental Disorder, Hangzhou, 310058, Zhejiang, China.
- Zhejiang Laboratory for Systems & Precision Medicine, Zhejiang University Medical Center, Hangzhou, 311121, China.
| | - Jiawei Zhang
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, Zhejiang, China.
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Nikovics K, Favier AL, Rocher M, Mayinga C, Gomez J, Dufour-Gaume F, Riccobono D. In Situ Identification of Both IL-4 and IL-10 Cytokine-Receptor Interactions during Tissue Regeneration. Cells 2023; 12:1522. [PMID: 37296643 PMCID: PMC10253026 DOI: 10.3390/cells12111522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/19/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
Cytokines secreted by individual immune cells regulate tissue regeneration and allow communication between various cell types. Cytokines bind to cognate receptors and trigger the healing process. Determining the orchestration of cytokine interactions with their receptors on their cellular targets is essential to fully understanding the process of inflammation and tissue regeneration. To this end, we have investigated the interactions of Interleukin-4 cytokine (IL-4)/Interleukin-4 cytokine receptor (IL-4R) and Interleukin-10 cytokine (IL-10)/Interleukin-10 cytokine receptor (IL-10R) using in situ Proximity Ligation Assays in a regenerative model of skin, muscle and lung tissues in the mini-pig. The pattern of protein-protein interactions was distinct for the two cytokines. IL-4 bound predominantly to receptors on macrophages and endothelial cells around the blood vessels while the target cells of IL-10 were mainly receptors on muscle cells. Our results show that in situ studies of cytokine-receptor interactions can unravel the fine details of the mechanism of action of cytokines.
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Affiliation(s)
- Krisztina Nikovics
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (A.-L.F.); (M.R.); (C.M.); (J.G.)
| | - Anne-Laure Favier
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (A.-L.F.); (M.R.); (C.M.); (J.G.)
| | - Mathilde Rocher
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (A.-L.F.); (M.R.); (C.M.); (J.G.)
| | - Céline Mayinga
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (A.-L.F.); (M.R.); (C.M.); (J.G.)
| | - Johanna Gomez
- Imagery Unit, Department of Platforms and Technology Research, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France; (A.-L.F.); (M.R.); (C.M.); (J.G.)
| | - Frédérique Dufour-Gaume
- War Traumatology Unit, Department of NRBC Defense, French Armed Forces Biomedical Research Institute, 91223 Brétigny-sur-Orge, France;
| | - Diane Riccobono
- Department of Radiation Bioeffects, French Armed Forces Biomedical Research Institute, 1, Place du Général Valérie André, 91223 Brétigny-sur-Orge, France;
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8
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Beghelli D, Zallocco L, Angeloni C, Bistoni O, Ronci M, Cavallucci C, Mazzoni MR, Nuccitelli A, Catalano C, Hrelia S, Lucacchini A, Giusti L. Dietary Supplementation with Boswellia serrata, Verbascum thapsus, and Curcuma longa in Show Jumping Horses: Effects on Serum Proteome, Antioxidant Status, and Anti-Inflammatory Gene Expression. Life (Basel) 2023; 13:life13030750. [PMID: 36983904 PMCID: PMC10055707 DOI: 10.3390/life13030750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 02/27/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
Intense exercise can cause inflammation and oxidative stress due to the production of reactive oxygen species. These pathophysiological processes are interdependent, and each one can induce the other, creating a vicious circle. A placebo-controlled blind study was carried out in show jumping horses (n. 16) to evaluate the effects of a commercial dietary supplement (Dolhorse® N.B.F. Lanes srl, Milan, Italy) containing Verbascum thapsus leaf powder (1.42%), Curcuma longa (14.280 mg/kg), and Boswellia serrata (Roxb ex Colebr) (14.280 mg/kg) extracts. Before and after 10 days of dietary supplementation, blood samples were collected to evaluate the protein levels, antioxidants, and inflammatory responses by proteomic analysis or real-time Reverse Transcriptase-Polymerase Chain Reaction (real-time RT-PCR). A total of 36 protein spots, connected to 29 proteins, were modulated by dietary supplementation, whereas real-time RT-PCR revealed a significant downregulation of proinflammatory cytokines (interleukin 1α (p < 0.05) and interleukin-6 (0.005), toll-like receptor 4 (p < 0.05), and IKBKB (p < 0.05) in supplemented sport horses. Immunoglobulin chains, gelsolin, plasminogen, vitamin D binding protein, apolipoprotein AIV, and filamin B were overexpressed, whereas haptoglobin, α-2-HS-glycoprotein, α2-macroglobulin, afamin, amine oxidase, 60S acidic ribosomal protein, and complement fragments 3, 4, and 7 were reduced. No effect was observed on the antioxidant defense systems. The present results suggest this phytotherapy may reinforce the innate immune responses, thus representing a valid adjuvant to alleviate inflammation, which is a pathophysiological process in sport horses.
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Affiliation(s)
- Daniela Beghelli
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy
- Correspondence: (D.B.); (L.G.); Tel.: +39-737-403201 (D.B.); +39-737-402916 (L.G.)
| | - Lorenzo Zallocco
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56126 Pisa, Italy
| | - Cristina Angeloni
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, 47921 Rimini, Italy
| | - Onelia Bistoni
- Rheumatology Unit, Department of Medicine, University of Perugia, 06126 Perugia, Italy
| | - Maurizio Ronci
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy
| | | | | | - Anna Nuccitelli
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, Italy
| | | | - Silvana Hrelia
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, 47921 Rimini, Italy
| | - Antonio Lucacchini
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Laura Giusti
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy
- Correspondence: (D.B.); (L.G.); Tel.: +39-737-403201 (D.B.); +39-737-402916 (L.G.)
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9
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Zamora V, Carlos Andreu-Ballester J, Rodero M, Cuéllar C. Anisakis simplex: Immunomodulatory effects of larval antigens on the activation of Toll like Receptors. Int Immunopharmacol 2021; 100:108120. [PMID: 34537480 DOI: 10.1016/j.intimp.2021.108120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 08/30/2021] [Accepted: 08/30/2021] [Indexed: 12/13/2022]
Abstract
AIMS The objective of this investigation is to evaluate the mechanisms Anisakis simplex employs to modify its host immune system, regarding the larval antigens interactions with Toll-Like-Receptors (TLRs). METHODS AND RESULTS In a previous study, we described that the stimulation of bone marrow derived dendritic cells (BMDCs) with A. simplex larval antigens drive an acute inflammatory response in BALB/c mice, but a more discrete and longer response in C57BL/6J. Moreover, when A. simplex larval antigens were combined with TLR agonists (TLR 1/2-9), they modified mainly TLR2, TLR4 and TLR9 agonists responses in both mice strains, and also TLR3, TLR5 and TLR7 in BALB/c. Antigen-presenting ability was analyzed by the detection of CD11c + cells expressing surface markers (CD80-86, MHC I-II), intracellular cytokines (IL-10, IL-12, TNF-α) and intracellular proteins (Myd88, NF-κβ) by Flow Cytometry. Secreted IL-10 was measured by ELISA. CONCLUSION Our findings confirm not only that the host genetic basis plays a role in the development of a Th2/Th1/Treg response, but also it states A. simplex larval antigens present specific mechanisms to modify the innate response of the host. As allergies share common pathways with the immune response against this particular helminth, our results provide a better understanding into the specific mechanisms of A. simplex allergy related diseases.
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Affiliation(s)
- Vega Zamora
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad Complutense de Madrid, Spain.
| | | | - Marta Rodero
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad Complutense de Madrid, Spain
| | - Carmen Cuéllar
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad Complutense de Madrid, Spain
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10
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Alexander AF, Kelsey I, Forbes H, Miller-Jensen K. Single-cell secretion analysis reveals a dual role for IL-10 in restraining and resolving the TLR4-induced inflammatory response. Cell Rep 2021; 36:109728. [PMID: 34551303 DOI: 10.1016/j.celrep.2021.109728] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 06/18/2021] [Accepted: 08/26/2021] [Indexed: 01/22/2023] Open
Abstract
Following Toll-like receptor 4 (TLR4) stimulation of macrophages, negative feedback mediated by the anti-inflammatory cytokine interleukin-10 (IL-10) limits the inflammatory response. However, extensive cell-to-cell variability in TLR4-stimulated cytokine secretion raises questions about how negative feedback is robustly implemented. To explore this, we characterize the TLR4-stimulated secretion program in primary murine macrophages using a single-cell microwell assay that enables evaluation of functional autocrine IL-10 signaling. High-dimensional analysis of single-cell data reveals three tiers of TLR4-induced proinflammatory activation based on levels of cytokine secretion. Surprisingly, while IL-10 inhibits TLR4-induced activation in the highest tier, it also contributes to the TLR4-induced activation threshold by regulating which cells transition from non-secreting to secreting states. This role for IL-10 in restraining TLR4 inflammatory activation is largely mediated by intermediate interferon (IFN)-β signaling, while TNF likely mediates response resolution by IL-10. Thus, cell-to-cell variability in cytokine regulatory motifs provides a means to tailor the TLR4-induced inflammatory response.
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Affiliation(s)
- Amanda F Alexander
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, USA
| | - Ilana Kelsey
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, USA
| | - Hannah Forbes
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, USA
| | - Kathryn Miller-Jensen
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, USA; Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, CT 06511, USA; Systems Biology Institute, Yale University, New Haven, CT 06511, USA.
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11
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Mikhalkevich N, O’Carroll IP, Tkavc R, Lund K, Sukumar G, Dalgard CL, Johnson KR, Li W, Wang T, Nath A, Iordanskiy S. Response of human macrophages to gamma radiation is mediated via expression of endogenous retroviruses. PLoS Pathog 2021; 17:e1009305. [PMID: 33556144 PMCID: PMC7895352 DOI: 10.1371/journal.ppat.1009305] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/19/2021] [Accepted: 01/11/2021] [Indexed: 01/11/2023] Open
Abstract
Ionizing radiation-induced tissue damage recruits monocytes into the exposed area where they are differentiated to macrophages. These implement phagocytic removal of dying cells and elicit an acute inflammatory response, but can also facilitate tumorigenesis due to production of anti-inflammatory cytokines. Using primary human monocyte-derived macrophages (MDMs) and the THP1 monocytic cell line, we demonstrate that gamma radiation triggers monocyte differentiation toward the macrophage phenotype with increased expression of type I interferons (IFN-I) and both pro- and anti-inflammatory macrophage activation markers. We found that these changes correlate with significantly upregulated expression of 622 retroelements from various groups, particularly of several clades of human endogenous retroviruses (HERVs). Elevated transcription was detected in both sense and antisense directions in the HERV subgroups tested, including the most genetically homogeneous clade HML-2. The level of antisense transcription was three- to five-fold higher than of the sense strand levels. Using a proximity ligation assay and immunoprecipitation followed by RNA quantification, we identified an increased amount of the dsRNA receptors MDA-5 and TLR3 bound to an equivalent number of copies of sense and antisense chains of HERVK HML-2 RNA. This binding triggered MAVS-associated signaling pathways resulting in increased expression of IFN-I and inflammation related genes that enhanced the cumulative inflammatory effect of radiation-induced senescence. HML-2 knockdown was accompanied with reduced expression and secretion of IFNα, pro-inflammatory (IL-1β, IL-6, CCL2, CCL3, CCL8, and CCL20) and anti-inflammatory (IL10) modulators in irradiated monocytes and MDMs. Taken together, our data indicate that radiation stress-induced HERV expression enhances the IFN-I and cytokine response and results in increased levels of pro-inflammatory modulators along with expression of anti-inflammatory factors associated with the macrophage tumorigenic phenotype. Ionizing radiation is a powerful stressogenic factor that induces massive cell damage. The signals released from radiation-damaged tissues recruit the monocytes, which are differentiated into macrophages that remove dying cells via phagocytosis and facilitate inflammation but can also contribute to tumorigenesis through anti-inflammatory and regenerative activities. The mechanism of this dual response of macrophages to irradiation is not fully understood. Using primary human macrophages and a monocytic cell line, we demonstrated that gamma radiation doses activate expression of various human endogenous retroviruses (HERVs). At the molecular level, we have shown that increased numbers of sense and antisense transcripts of tested HERV subgroups bind to double-stranded RNA receptors inducing the expression of type I interferons, multiple pro-inflammatory and some anti-inflammatory factors. At the phenotypic level, polarized macrophages exhibit a potent inflammatory response along with potentially tumorigenic characteristics. Our data suggest that endogenous retroviruses represent an important contributor of the macrophage-mediated inflammation in response to radiation-induced stress but may also indirectly influence tumorigenesis via biased macrophage polarization.
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Affiliation(s)
- Natallia Mikhalkevich
- Department of Pharmacology & Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, Maryland, United States of America
| | - Ina P. O’Carroll
- Department of Chemistry, United States Naval Academy, Annapolis, Maryland, United States of America
| | - Rok Tkavc
- The Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland, United States of America
| | - Kateryna Lund
- Biomedical Instrumentation Center, Uniformed Services University of the Health Sciences, Bethesda, Maryland, United States of America
| | - Gauthaman Sukumar
- The American Genome Center (TAGC), Collaborative Health Initiative Research Program, Uniformed Services University of the Health Sciences, Bethesda, Maryland, United States of America
| | - Clifton L. Dalgard
- The American Genome Center (TAGC), Collaborative Health Initiative Research Program, Uniformed Services University of the Health Sciences, Bethesda, Maryland, United States of America
- Department of Anatomy, Physiology & Genetics, Uniformed Services University of the Health Sciences, Bethesda, Maryland, United States of America
| | - Kory R. Johnson
- Bioinformatics Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Wenxue Li
- Section of Infections of the Nervous System, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Tongguang Wang
- Section of Infections of the Nervous System, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Avindra Nath
- Section of Infections of the Nervous System, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, United States of America
- * E-mail: (AN); (SI)
| | - Sergey Iordanskiy
- Department of Pharmacology & Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, Maryland, United States of America
- * E-mail: (AN); (SI)
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12
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Control of IFN-I responses by the aminopeptidase IRAP in neonatal C57BL/6 alveolar macrophages during RSV infection. Mucosal Immunol 2021; 14:949-962. [PMID: 33846534 PMCID: PMC8221999 DOI: 10.1038/s41385-021-00402-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 03/03/2021] [Accepted: 03/22/2021] [Indexed: 02/04/2023]
Abstract
Respiratory Syncytial Virus (RSV) is the major cause of lower respiratory tract infection in infants, in whom, the sensing of RSV by innate immune receptors and its regulation are still poorly described. However, the severe bronchiolitis following RSV infection in neonates has been associated with a defect in type I interferons (IFN-I) production, a cytokine produced mainly by alveolar macrophages (AMs) upon RSV infection in adults. In the present study, neonatal C57BL/6 AMs mobilized very weakly the IFN-I pathway upon RSV infection in vitro and failed to restrain virus replication. However, IFN-I productions by neonatal AMs were substantially increased by the deletion of Insulin-Responsive AminoPeptidase (IRAP), a protein previously involved in the regulation of IFN-I production by dendritic cells. Moreover, neonatal IRAPKO AMs showed a higher expression of IFN-stimulated genes than their wild-type C57BL/6 counterpart. Interestingly, depletion of IRAP did not affect adult AM responses. Finally, we demonstrated that newborn IRAPKO mice infected with RSV had more IFN-I in their lungs and eliminated the virus more efficiently than WT neonates. Taken together, early-life susceptibility to RSV infection may be related to an original age-dependent suppressive function of IRAP on the IFN-I driven-antiviral responses in neonatal AMs.
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13
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Ernst O, Failayev H, Athamna M, He H, Tsfadia Y, Zor T. A dual and conflicting role for imiquimod in inflammation: A TLR7 agonist and a cAMP phosphodiesterase inhibitor. Biochem Pharmacol 2020; 182:114206. [DOI: 10.1016/j.bcp.2020.114206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 08/10/2020] [Accepted: 08/18/2020] [Indexed: 12/14/2022]
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14
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Saraiva M, Vieira P, O'Garra A. Biology and therapeutic potential of interleukin-10. J Exp Med 2020; 217:jem.20190418. [PMID: 31611251 PMCID: PMC7037253 DOI: 10.1084/jem.20190418] [Citation(s) in RCA: 427] [Impact Index Per Article: 106.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 08/05/2019] [Accepted: 09/11/2019] [Indexed: 12/13/2022] Open
Abstract
The authors review the molecular mechanisms regulating IL-10 production and response and describe classic and novel functions of IL-10 in immune and non-immune cells. They further discuss the therapeutic potential of IL-10 in different diseases and the outstanding questions underlying an effective application of IL-10 in clinical settings. The cytokine IL-10 is a key anti-inflammatory mediator ensuring protection of a host from over-exuberant responses to pathogens and microbiota, while playing important roles in other settings as sterile wound healing, autoimmunity, cancer, and homeostasis. Here we discuss our current understanding of the regulation of IL-10 production and of the molecular pathways associated with IL-10 responses. In addition to IL-10’s classic inhibitory effects on myeloid cells, we also describe the nonclassic roles attributed to this pleiotropic cytokine, including how IL-10 regulates basic processes of neural and adipose cells and how it promotes CD8 T cell activation, as well as epithelial repair. We further discuss its therapeutic potential in the context of different diseases and the outstanding questions that may help develop an effective application of IL-10 in diverse clinical settings.
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Affiliation(s)
- Margarida Saraiva
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Paulo Vieira
- Department of Immunology, Unité Lymphopoièse, Institut Pasteur, Paris, France.,University Paris Diderot, Sorbonne Paris Cité, Cellule Pasteur, Paris, France.,Institut National de la Santé et de la Recherche Médicale U1223, Paris, France
| | - Anne O'Garra
- Laboratory of Immunoregulation and Infection, The Francis Crick Institute, London, UK.,National Heart and Lung Institute, Imperial College London, UK
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15
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Yaremchuk OZ, Posokhova KA, Kuzmak IP, Kulitska MI, Shevchuk ОО, Volska AS, Lykhatskyi P. IMPACT OF NITRIC OXIDE SYNTHESIS MODULATORS ON THE CYTOKINES PROFILE IN EXPERIMENTAL ANTIPHOSPHOLIPID SYNDROME. INTERNATIONAL JOURNAL OF MEDICINE AND MEDICAL RESEARCH 2020. [DOI: 10.11603/ijmmr.2413-6077.2019.2.10698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background. Antiphospholipid syndrome (APS) is an autoimmune disease characterized by the presence of specific antibodies. Objective. The aim of the study was to investigate the effect of combined use of L-arginine and aminoguanidine on cytokine profile (IL-1β, IL-6, TNF-α, IL-4, IL-10) in experimental APS. Methods. The study was performed on BALB/c female mice. L-arginine (25 mg/kg) and aminoguanidine (10 mg/kg) were used for correction. Serum cytokines concentrations were assessed using an ELISA test. Results. It was found that in APS the concentration of proinflammatory cytokines IL-1β, IL-6 and TNF-a increases in 3.2, 2.3 and 4.5 times respectively, compare to the control. At the same time a decrease of the IL-4 and IL-10 in 1.9 and 2.2 times was evidenced. Aminoguanidine, a selective iNOS inhibitor, caused a significant decrease of TNF-α by 57% (p<0.001), but there were no changes in IL-1β, IL-6, IL-4 and IL-10 compare to the APS-group. L-arginine combined with aminoguanidine caused a significant decrease in the concentration of IL-1β by 30% (p<0.01), IL-6 – by 16% (p<0.05), TNF-a – by 59% (p<0.001) compare to the control. At the same time, the concentration of IL-4 increased by 35% (p <0.01), IL-10 – by 25% (p<0.005). Conclusions. Combined use of the precursor of the NO synthesis L-arginine and aminoguanidine, a selective iNOS inhibitor, leads to a decrease in the concentrations of IL-1β, IL-6, TNF-a and an increase of IL-4 and IL-10 compare to the group of the BALB/c mice with APS and the group of animals administered with aminoguanidine.
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16
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Ernst O, Glucksam-Galnoy Y, Bhatta B, Athamna M, Ben-Dror I, Glick Y, Gerber D, Zor T. Exclusive Temporal Stimulation of IL-10 Expression in LPS-Stimulated Mouse Macrophages by cAMP Inducers and Type I Interferons. Front Immunol 2019; 10:1788. [PMID: 31447835 PMCID: PMC6691811 DOI: 10.3389/fimmu.2019.01788] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 07/16/2019] [Indexed: 01/02/2023] Open
Abstract
Expression of the key anti-inflammatory cytokine IL-10 in lipopolysaccharide (LPS)-stimulated macrophages is mediated by a delayed autocrine/paracrine loop of type I interferons (IFN) to ensure timely attenuation of inflammation. We have previously shown that cAMP synergizes with early IL-10 expression by LPS, but is unable to amplify the late type I IFN-dependent activity. We now examined the mechanism of this synergistic transcription in mouse macrophages at the promoter level, and explored the crosstalk between type I IFN signaling and cAMP, using the β-adrenergic receptor agonist, isoproterenol, as a cAMP inducer. We show that silencing of the type I IFN receptor enables isoproterenol to synergize with LPS also at the late phase, implying that autocrine type I IFN activity hinders synergistic augmentation of LPS-stimulated IL-10 expression by cAMP at the late phase. Furthermore, IL-10 expression in LPS-stimulated macrophages is exclusively stimulated by either IFNα or isoproterenol. We identified a set of two proximate and inter-dependent cAMP response element (CRE) sites that cooperatively regulate early IL-10 transcription in response to isoproterenol-stimulated CREB and that further synergize with a constitutive Sp1 site. At the late phase, up-regulation of Sp1 activity by LPS-stimulated type I IFN is correlated with loss of function of the CRE sites, suggesting a mechanism for the loss of synergism when LPS-stimulated macrophages switch to type I IFN-dependent IL-10 expression. This report delineates the molecular mechanism of cAMP-accelerated IL-10 transcription in LPS-stimulated murine macrophages that can limit inflammation at its onset.
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Affiliation(s)
- Orna Ernst
- Department of Biochemistry & Molecular Biology, School of Neurobiology, Biochemistry & Biophysics, Tel Aviv University, Tel Aviv, Israel
| | - Yifat Glucksam-Galnoy
- Department of Biochemistry & Molecular Biology, School of Neurobiology, Biochemistry & Biophysics, Tel Aviv University, Tel Aviv, Israel
| | - Bibek Bhatta
- Department of Biochemistry & Molecular Biology, School of Neurobiology, Biochemistry & Biophysics, Tel Aviv University, Tel Aviv, Israel
| | - Muhammad Athamna
- Department of Biochemistry & Molecular Biology, School of Neurobiology, Biochemistry & Biophysics, Tel Aviv University, Tel Aviv, Israel.,Triangle Regional Research and Development Center, Kafr Qara, Israel
| | - Iris Ben-Dror
- Department of Biochemistry & Molecular Biology, School of Neurobiology, Biochemistry & Biophysics, Tel Aviv University, Tel Aviv, Israel
| | - Yair Glick
- The Nanotechnology Institute, Bar-Ilan University, Ramat Gan, Israel
| | - Doron Gerber
- The Nanotechnology Institute, Bar-Ilan University, Ramat Gan, Israel
| | - Tsaffrir Zor
- Department of Biochemistry & Molecular Biology, School of Neurobiology, Biochemistry & Biophysics, Tel Aviv University, Tel Aviv, Israel
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17
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The cAMP Pathway Amplifies Early MyD88-Dependent and Type I Interferon-Independent LPS-Induced Interleukin-10 Expression in Mouse Macrophages. Mediators Inflamm 2019; 2019:3451461. [PMID: 31148944 PMCID: PMC6501241 DOI: 10.1155/2019/3451461] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 01/05/2019] [Accepted: 02/11/2019] [Indexed: 12/20/2022] Open
Abstract
Interleukin-10 (IL-10) is a key anti-inflammatory cytokine, secreted by macrophages and other immune cells to attenuate inflammation. Autocrine type I interferons (IFNs) largely mediate the delayed expression of IL-10 by LPS-stimulated macrophages. We have previously shown that IL-10 is synergistically expressed in macrophages following a costimulus of a TLR agonist and cAMP. We now show that the cAMP pathway directly upregulates IL-10 transcription and plays an important permissive and synergistic role in early, but not late, LPS-stimulated IL-10 mRNA and protein expression in mouse macrophages and in a mouse septic shock model. Our results suggest that the loss of synergism is not due to desensitization of the cAMP inducing signal, and it is not mediated by a positive crosstalk between the cAMP and type I IFN pathways. First, cAMP elevation in LPS-treated cells decreased the secretion of type I IFN. Second, autocrine/paracrine type I IFNs induce IL-10 promoter reporter activity only additively, but not synergistically, with the cAMP pathway. IL-10 promoter reporter activity was synergistically induced by cAMP elevation in macrophages stimulated by an agonist of either TLR4, TLR2/6, or TLR7, receptors which signal via MyD88, but not by an agonist of TLR3 which signals independently of MyD88. Moreover, MyD88 knockout largely reduced the synergistic IL-10 expression, indicating that MyD88 is required for the synergism displayed by LPS with cAMP. This report delineates the temporal regulation of early cAMP-accelerated vs. late type I IFN-dependent IL-10 transcription in LPS-stimulated murine macrophages that can limit inflammation at its onset.
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18
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Ouyang W, O'Garra A. IL-10 Family Cytokines IL-10 and IL-22: from Basic Science to Clinical Translation. Immunity 2019; 50:871-891. [PMID: 30995504 DOI: 10.1016/j.immuni.2019.03.020] [Citation(s) in RCA: 570] [Impact Index Per Article: 114.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 03/01/2019] [Accepted: 03/21/2019] [Indexed: 12/12/2022]
Abstract
Cytokines are among the most important effector and messenger molecules in the immune system. They profoundly participate in immune responses during infection and inflammation, protecting against or contributing to diseases such as allergy, autoimmunity, and cancer. Manipulating cytokine pathways, therefore, is one of the most effective strategies to treat various diseases. IL-10 family cytokines exert essential functions to maintain tissue homeostasis during infection and inflammation through restriction of excessive inflammatory responses, upregulation of innate immunity, and promotion of tissue repairing mechanisms. Their important functions in diseases are supported by data from many preclinical models, human genetic studies, and clinical interventions. Despite significant efforts, however, there is still no clinically approved therapy through manipulating IL-10 family cytokines. Here, we summarize the recent progress in understanding the biology of this family of cytokines, suggesting more specific strategies to maneuver these cytokines for the effective treatment of inflammatory diseases and cancers.
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Affiliation(s)
- Wenjun Ouyang
- Department of Inflammation and Oncology Research, Amgen, South San Francisco, CA 94080, USA.
| | - Anne O'Garra
- Laboratory of Immunoregulation and Infection, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UK.
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19
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Chen X, Wang P, Zhao C, Yan L, Lin H, Qiu L. Molecular characterization and functional analysis of IL-12p40 from Chinese sea bass (Lateolabrax maculatus) under biotic and abiotic stresses. FISH & SHELLFISH IMMUNOLOGY 2018; 83:373-385. [PMID: 30227255 DOI: 10.1016/j.fsi.2018.09.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 08/21/2018] [Accepted: 09/12/2018] [Indexed: 06/08/2023]
Abstract
Interleukins are critical cytokines that are ubiquitously present in both vertebrates and invertebrates and constitute the front line of host innate immunity. Here, we identified and analyzed IL-12p40 from the Chinese sea bass Lateolabrax maculatus (LmIL-12p40). The LmIL-12p40 gene is expressed as a 1386-base pair transcript that encodes a polypeptide of 321 amino acids. Transcriptional expression analysis indicated that LmIL-12p40 mRNA was ubiquitously expressed in all tested tissues and had a comparatively high expression level in immune-associated tissues (head-kidney and intestines). Quantitative reverse-transcriptase polymerase chain reaction (qRT-PCR) experiments showed that, after Vibro harveyi and Streptococus agalactiae infection, LmIL-12p40 mRNA expression was significantly up-regulated in the spleen, liver and head-kidney. To further clarify the immune function of LmIL-12p40 after bacterial challenge, the recombinant LmIL-12p40 protein was acquired using a prokaryotic expression method. Furthermore, the LmIL-12p40 dimer (LmIL-12p80) could be produced via protein-protein interactions by incubating p40 monomer expressed from the pET28a vector (pET28a-LmIL-12p40) with p40 monomer expressed from the pGEX4T-1 vector (pGEX4T-1-LmIL-12p40). The antimicrobial activity of the purified LmIL-12p40 and LmIL-12p80 proteins were further studied in vitro using a bacterial growth inhibition test (for both liquid and solid cultures) and in vivo (using a bacterial growth inhibition test with the head-kidney tissues). Furthermore, BL21 (DE3) E. coli cells transformed with the recombinant pET28a-LmIL-12p40 vector were dramatically protected in response to metal toxicity and H2O2-related oxidative stress. In summary, this study will provide foundational information regarding the role of LmIL-12p40 in defending against various biotic and abiotic stresses in fishes, which should help to further clarify the functional mechanism of interleukins.
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Affiliation(s)
- Xiang Chen
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, PR China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, PR China
| | - Pengfei Wang
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, PR China
| | - Chao Zhao
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, PR China
| | - Lulu Yan
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, PR China
| | - Heizhao Lin
- Shenzhen Base of South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shenzhen, PR China
| | - Lihua Qiu
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Guangzhou, PR China.
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20
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Min CK, Kim HI, Ha NY, Kim Y, Kwon EK, Yen NTH, Youn JI, Jeon YK, Inn KS, Choi MS, Cho NH. A Type I Interferon and IL-10 Induced by Orientia tsutsugamushi Infection Suppresses Antigen-Specific T Cells and Their Memory Responses. Front Immunol 2018; 9:2022. [PMID: 30233599 PMCID: PMC6131522 DOI: 10.3389/fimmu.2018.02022] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 08/16/2018] [Indexed: 12/31/2022] Open
Abstract
Despite the various roles of type I interferon (type I IFN) responses during bacterial infection, its specific effects in vivo have been poorly characterized in scrub typhus caused by Orientia tsutsugamushi infection. Here, we show that type I IFNs are primarily induced via intracellular nucleic acids sensors, including RIG-I/MAVS and cGAS/STING pathways, during O. tsutsugamushi invasion. However, type I IFN signaling did not significantly affect pathogenesis, mortality, or bacterial burden during primary infection in vivo, when assessed in a mice model lacking a receptor for type I IFNs (IFNAR KO). Rather, it significantly impaired the induction of antigen-specific T cells and reduced memory T cell responses. IFNAR KO mice that recovered from primary infection showed stronger antigen-specific T cell responses, especially Th1, and more efficiently controlled bacteremia during secondary infection than wild type mice. Enhanced IL-10 expression by macrophages in the presence of type I IFN signaling might play a significant role in the suppression of antigen-specific T cell responses as neutralization or knock-out (KO) of IL-10 increased T cell responses in vitro. Therefore, induction of the type I IFN/IL-10 axis by O. tsutsugamushi infection might play a significant role in the suppression of T cell responses and contribute to the short longevity of cell-mediated immunity, often observed in scrub typhus patients.
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Affiliation(s)
- Chan-Ki Min
- Department of Microbiology and Immunology,Seoul National University College of Medicine, Seoul, South Korea.,Department of Biomedical Sciences,Seoul National University College of Medicine, Seoul, South Korea
| | - Hong-Ii Kim
- Department of Microbiology and Immunology,Seoul National University College of Medicine, Seoul, South Korea.,Department of Biomedical Sciences,Seoul National University College of Medicine, Seoul, South Korea
| | - Na-Young Ha
- Department of Microbiology and Immunology,Seoul National University College of Medicine, Seoul, South Korea.,Department of Biomedical Sciences,Seoul National University College of Medicine, Seoul, South Korea
| | - Yuri Kim
- Department of Microbiology and Immunology,Seoul National University College of Medicine, Seoul, South Korea.,Department of Biomedical Sciences,Seoul National University College of Medicine, Seoul, South Korea
| | - Eun-Kyung Kwon
- Department of Microbiology and Immunology,Seoul National University College of Medicine, Seoul, South Korea.,Department of Biomedical Sciences,Seoul National University College of Medicine, Seoul, South Korea
| | - Nguyen Thi Hai Yen
- Department of Microbiology and Immunology,Seoul National University College of Medicine, Seoul, South Korea.,Department of Biomedical Sciences,Seoul National University College of Medicine, Seoul, South Korea
| | - Je-In Youn
- Department of Biomedical Sciences,Seoul National University College of Medicine, Seoul, South Korea.,Wide River Institute of Immunology, Seoul National University College of Medicine, Gangwon-do, South Korea
| | - Yoon Kyung Jeon
- Department of Pathology, Seoul National University College of Medicine, Seoul, South Korea
| | - Kyung-Soo Inn
- Department of Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, South Korea
| | - Myung-Sik Choi
- Department of Microbiology and Immunology,Seoul National University College of Medicine, Seoul, South Korea
| | - Nam-Hyuk Cho
- Department of Microbiology and Immunology,Seoul National University College of Medicine, Seoul, South Korea.,Department of Biomedical Sciences,Seoul National University College of Medicine, Seoul, South Korea.,Wide River Institute of Immunology, Seoul National University College of Medicine, Gangwon-do, South Korea.,Institute of Endemic Disease, Seoul National University Medical Research Center and Bundang Hospital, Seoul, South Korea
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21
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Llopiz D, Ruiz M, Silva L, Sarobe P. Enhancement of Antitumor Vaccination by Targeting Dendritic Cell-Related IL-10. Front Immunol 2018; 9:1923. [PMID: 30233565 PMCID: PMC6129595 DOI: 10.3389/fimmu.2018.01923] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 08/06/2018] [Indexed: 12/24/2022] Open
Abstract
Understanding mechanisms associated to dendritic cell (DC) functions has allowed developing new antitumor therapeutic vaccination strategies. However, these vaccines have demonstrated limited clinical results. Although the low immunogenicity of tumor antigens used and the presence of tumor-associated suppressive factors may in part account for these results, intrinsic vaccine-related factors may also be involved. Vaccines modulate DC functions by inducing activating and inhibitory signals that determine ensuing T cell responses. In this mini review, we focus on IL-10, inhibitory cytokine induced in DC upon vaccination, which defines a suppressive cell subset, discussing its implications as a potential target in combined vaccination immunotherapies.
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Affiliation(s)
- Diana Llopiz
- Programa de Inmunología e Inmunoterapia, Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, Pamplona, Spain.,Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
| | - Marta Ruiz
- Programa de Inmunología e Inmunoterapia, Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, Pamplona, Spain.,Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
| | - Leyre Silva
- Programa de Inmunología e Inmunoterapia, Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, Pamplona, Spain.,Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
| | - Pablo Sarobe
- Programa de Inmunología e Inmunoterapia, Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, Pamplona, Spain.,Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
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22
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Van den Kerkhof M, Van Bockstal L, Gielis JF, Delputte P, Cos P, Maes L, Caljon G, Hendrickx S. Impact of primary mouse macrophage cell types on Leishmania infection and in vitro drug susceptibility. Parasitol Res 2018; 117:3601-3612. [PMID: 30141075 DOI: 10.1007/s00436-018-6059-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 08/15/2018] [Indexed: 01/16/2023]
Abstract
Primary mouse macrophages are frequently used to provide an in vitro intracellular model to evaluate antileishmanial drug efficacy. The present study compared the phenotypic characteristics of Swiss, BALB/c, and C57BL/6 mouse bone marrow-derived macrophages and peritoneal exudate cells using different stimulation and adherence protocols upon infection with a Leishmania infantum laboratory strain and two clinical isolates. Evaluation parameters were susceptibility to infection, permissiveness to amastigote multiplication, and impact on drug efficacy. Observed variations in infection of peritoneal exudate cells can mostly be linked to changes in the inflammatory cytokine profiles (IL-6, TNF-α, KC/GRO) rather than to differences in initial production of nitric oxide and reactive oxygen species. Optimization of the cell stimulation and adherence conditions resulted in comparable infection indices among peritoneal exudate cells and the various types of bone marrow-derived macrophages. BALB/c-derived bone marrow-derived macrophages were slightly more permissive to intracellular amastigote replication. Evaluation of antileishmanial drug potency in the various cell systems revealed minimal variation for antimonials and paromomycin, and no differences for miltefosine and amphotericin B. The study results allow to conclude that drug evaluation can be performed in all tested primary macrophages as only marginal differences are observed in terms of susceptibility to infection and impact of drug exposure. Combined with some practical considerations, the use of 24-h starch-stimulated, 48-h adhered, Swiss-derived peritoneal exudate cells can be advocated as an efficient, reliable, relatively quick, and cost-effective tool for routine drug susceptibility testing in vitro whenever the use of primary cells is feasible.
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Affiliation(s)
- M Van den Kerkhof
- Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Wilrijk, Belgium
| | - L Van Bockstal
- Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Wilrijk, Belgium
| | - J F Gielis
- Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Wilrijk, Belgium
- Antwerp Surgical Training, Anatomy & Research Center, Department of Medicine, University of Antwerp, Wilrijk, Belgium
| | - P Delputte
- Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Wilrijk, Belgium
| | - P Cos
- Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Wilrijk, Belgium
| | - L Maes
- Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Wilrijk, Belgium
| | - Guy Caljon
- Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Wilrijk, Belgium.
| | - Sarah Hendrickx
- Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Wilrijk, Belgium.
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23
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Imbrechts M, De Samblancx K, Fierens K, Brisse E, Vandenhaute J, Mitera T, Libert C, Smets I, Goris A, Wouters C, Matthys P. IFN-γ stimulates CpG-induced IL-10 production in B cells via p38 and JNK signalling pathways. Eur J Immunol 2018; 48:1506-1521. [DOI: 10.1002/eji.201847578] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/28/2018] [Accepted: 06/30/2018] [Indexed: 01/01/2023]
Affiliation(s)
- Maya Imbrechts
- KU Leuven; Rega Institute; Laboratory of Immunobiology; Leuven Belgium
| | | | - Karlien Fierens
- KU Leuven; Rega Institute; Laboratory of Immunobiology; Leuven Belgium
| | - Ellen Brisse
- KU Leuven; Rega Institute; Laboratory of Immunobiology; Leuven Belgium
| | | | - Tania Mitera
- KU Leuven; Rega Institute; Laboratory of Immunobiology; Leuven Belgium
| | - Claude Libert
- VIB Center for Inflammation Research; Ghent Belgium
- Department of Biomedical Molecular Biology; Ghent University; Ghent Belgium
| | - Ide Smets
- KU Leuven; Department of Neurosciences; Laboratory for Neuroimmunology; Leuven Belgium
- Department of Neurology; University Hospitals Leuven; Leuven Belgium
| | - An Goris
- KU Leuven; Department of Neurosciences; Laboratory for Neuroimmunology; Leuven Belgium
| | - Carine Wouters
- KU Leuven; Rega Institute; Laboratory of Immunobiology; Leuven Belgium
- Laboratory of Paediatric Immunology; University Hospitals Leuven; Leuven Belgium
| | - Patrick Matthys
- KU Leuven; Rega Institute; Laboratory of Immunobiology; Leuven Belgium
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24
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Fueldner C, Kohlschmidt J, Riemschneider S, Schulze F, Zoldan K, Esser C, Hauschildt S, Lehmann J. Benzo(a)pyrene attenuates the pattern-recognition-receptor induced proinflammatory phenotype of murine macrophages by inducing IL-10 expression in an aryl hydrocarbon receptor-dependent manner. Toxicology 2018; 409:80-90. [PMID: 30053493 DOI: 10.1016/j.tox.2018.07.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 06/18/2018] [Accepted: 07/18/2018] [Indexed: 01/10/2023]
Abstract
Polycyclic aromatic hydrocarbons such as benzo(a)pyrene (BaP) are environmental contaminants known to be immunosuppressive. Most effects of BaP towards immune cells are thought to be mediated through activation of the aryl hydrocarbon receptor (AhR). The AhR is a ligand-activated transcription factor, which plays a critical modulatory role in various cells during immune response. Macrophages are key players in innate immunity against intracellular bacteria and are discussed to be a target of AhR-mediated immune regulation. However, so far there is only incomplete knowledge about the effects of BaP on activated macrophages and whether these effects are AhR-dependent in each case. Using murine bone marrow-derived macrophages (BMMs) stimulated with heat-killed salmonellae as a source of different pathogen-associated molecular patterns (PAMPs) for stimulation of different pattern recognition receptors (PRRs) as an in-vitro model, we studied the immunomodulatory effects of low-dose BaP exposure. PRR-activated BMMs produced nitric oxide (NO) and a spectrum of proinflammatory cytokines, i.e. tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6, and IL-12 but also the anti-inflammatory cytokine IL-10. While BaP exposure suppressed the production of proinflammatory cytokines, the secretion of IL-10 was augmented. Moreover, BaP exposure increased the expression of major histocompatibility complex class II (MHC-II), CD14, Fcγ receptor I (FcγRI/CD64), or CD86, enhanced NO production and phagocytosis what may be beneficial for phagocytosis and killing of microbial pathogens. Of note, without PRR activation low-dose BaP exposure has little influence on the macrophage phenotype. BMMs from AhR-deficient (Ahr-/-) mice were widely refractory to BaP-induced modulation of cytokine production, surface marker expression, and functional properties in response to PAMPs stimulation, indicating that these effects are dependent on AhR. In summary, these data suggest that induction of AhR-mediated signalling pathways by BaP may attenuate the proinflammatory phenotype of PRR-activated BMMs, while activating IL-10-mediated anti-inflammatory properties but also enhancing uptake and killing of pathogens as well as antigen presentation. Together these features imply a favourable role of BaP exposure for macrophage functions in an ongoing immune response. However, the strong induction of IL-10 may lead to defective pathogen clearance and subsequently to chronic persistent infection. This concept suggests an inhibitory rather than a supporting influence of environmental BaP on immunity to infection or cancer and also emphasises the important regulatory role of AhR in immunity and inflammation.
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Affiliation(s)
- Christiane Fueldner
- Department of Therapy Validation, Fraunhofer Institute for Cell Therapy and Immunology, 04103 Leipzig, Germany.
| | - Janine Kohlschmidt
- Department of Therapy Validation, Fraunhofer Institute for Cell Therapy and Immunology, 04103 Leipzig, Germany.
| | - Sina Riemschneider
- Department of Therapy Validation, Fraunhofer Institute for Cell Therapy and Immunology, 04103 Leipzig, Germany.
| | - Felix Schulze
- Department of Therapy Validation, Fraunhofer Institute for Cell Therapy and Immunology, 04103 Leipzig, Germany.
| | - Katharina Zoldan
- Department of Therapy Validation, Fraunhofer Institute for Cell Therapy and Immunology, 04103 Leipzig, Germany.
| | - Charlotte Esser
- Leibniz Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany.
| | - Sunna Hauschildt
- Department of Immunobiology, Faculty of Life Sciences, University of Leipzig, 04103 Leipzig, Germany.
| | - Jörg Lehmann
- Department of Therapy Validation, Fraunhofer Institute for Cell Therapy and Immunology, 04103 Leipzig, Germany.
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25
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Moreira-Teixeira L, Mayer-Barber K, Sher A, O'Garra A. Type I interferons in tuberculosis: Foe and occasionally friend. J Exp Med 2018; 215:1273-1285. [PMID: 29666166 PMCID: PMC5940272 DOI: 10.1084/jem.20180325] [Citation(s) in RCA: 163] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 03/28/2018] [Accepted: 03/29/2018] [Indexed: 12/21/2022] Open
Abstract
Tuberculosis remains one of the leading causes of mortality worldwide, and, despite its clinical significance, there are still significant gaps in our understanding of pathogenic and protective mechanisms triggered by Mycobacterium tuberculosis infection. Type I interferons (IFN) regulate a broad family of genes that either stimulate or inhibit immune function, having both host-protective and detrimental effects, and exhibit well-characterized antiviral activity. Transcriptional studies have uncovered a potential deleterious role for type I IFN in active tuberculosis. Since then, additional studies in human tuberculosis and experimental mouse models of M. tuberculosis infection support the concept that type I IFN promotes both bacterial expansion and disease pathogenesis. More recently, studies in a different setting have suggested a putative protective role for type I IFN. In this study, we discuss the mechanistic and contextual factors that determine the detrimental versus beneficial outcomes of type I IFN induction during M. tuberculosis infection, from human disease to experimental mouse models of tuberculosis.
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Affiliation(s)
- Lúcia Moreira-Teixeira
- Laboratory of Immunoregulation and Infection, The Francis Crick Institute, London, England, UK
| | - Katrin Mayer-Barber
- Inflammation and Innate Immunity Unit, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Alan Sher
- Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Anne O'Garra
- Laboratory of Immunoregulation and Infection, The Francis Crick Institute, London, England, UK
- National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, England, UK
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26
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Li M, Li J, Zeng R, Yang J, Liu J, Zhang Z, Song X, Yao Z, Ma C, Li W, Wang K, Wei L. Respiratory Syncytial Virus Replication Is Promoted by Autophagy-Mediated Inhibition of Apoptosis. J Virol 2018; 92:e02193-17. [PMID: 29386287 PMCID: PMC5874425 DOI: 10.1128/jvi.02193-17] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 01/11/2018] [Indexed: 12/15/2022] Open
Abstract
Respiratory syncytial virus (RSV) is the main cause of acute lower respiratory tract infection (ALRI) in children worldwide. Virus-host interactions affect the progression and prognosis of the infection. Autophagy plays important roles in virus-host interactions. Respiratory epithelial cells serve as the front line of host defense during RSV infection, However, it is still unclear how they interact with RSV. In this study, we found that RSV induced autophagy that favored RSV replication and exacerbated lung pathology in vivo Mechanistically, RSV induced complete autophagy flux through reactive oxygen species (ROS) generation and activation of the AMP-activated protein kinase/mammalian target of rapamycin (AMPK-MTOR) signaling pathway in HEp-2 cells. Furthermore, we evaluated the functions of autophagy in RSV replication and found that RSV replication was increased in HEp-2 cells treated with rapamycin but decreased remarkably in cells treated with 3-methylademine (3-MA) or wortmannin. Knockdown key molecules in the autophagy pathway with short hairpinp RNA (shRNA) against autophagy-related gene 5 (ATG5), autophagy-related gene 7 (ATG7), or BECN1/Beclin 1 or treatment with ROS scavenger N-acetyl-l-cysteine (NAC) and AMPK inhibitor (compound C) suppressed RSV replication. 3-MA or shATG5/BECN1 significantly decreased cell viability and increased cell apoptosis at 48 hours postinfection (hpi). Blocking apoptosis with Z-VAD-FMK partially restored virus replication at 48 hpi. Those results provide strong evidence that autophagy may function as a proviral mechanism in a cell-intrinsic manner during RSV infection.IMPORTANCE An understanding of the mechanisms that respiratory syncytial virus utilizes to interact with respiratory epithelial cells is critical to the development of novel antiviral strategies. In this study, we found that RSV induces autophagy through a ROS-AMPK signaling axis, which in turn promotes viral infection. Autophagy favors RSV replication through blocking cell apoptosis at 48 hpi. Mechanistically, RSV induces mitophagy, which maintains mitochondrial homeostasis and therefore decreases cytochrome c release and apoptosis induction. This study provides a novel insight into this virus-host interaction, which may help to exploit new antiviral treatments targeting autophagy processes.
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Affiliation(s)
- Miao Li
- Department of Pathogen Biology, Hebei Medical University, Shijiazhuang, Hebei, China
- Key Laboratory of Immune mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, Hebei, China
| | - Jian Li
- Department of Pathogen Biology, Hebei Medical University, Shijiazhuang, Hebei, China
- Key Laboratory of Immune mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, Hebei, China
| | - Ruihong Zeng
- Department of Immunology, Hebei Medical University, Shijiazhuang, Hebei, China
- Key Laboratory of Immune mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, Hebei, China
| | - Jianling Yang
- Department of Immunology, Hebei Medical University, Shijiazhuang, Hebei, China
- Key Laboratory of Immune mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, Hebei, China
| | - Jianguo Liu
- Division of Infectious Diseases, Allergy and Immunology, Departments of Internal Medicine & Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Zhengzheng Zhang
- Department of Immunology, Hebei Medical University, Shijiazhuang, Hebei, China
- Key Laboratory of Immune mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, Hebei, China
| | - Xiaotian Song
- Department of Immunology, Hebei Medical University, Shijiazhuang, Hebei, China
- Key Laboratory of Immune mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, Hebei, China
| | - Zhiyan Yao
- Department of Immunology, Hebei Medical University, Shijiazhuang, Hebei, China
- Key Laboratory of Immune mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, Hebei, China
| | - Cuiqing Ma
- Department of Immunology, Hebei Medical University, Shijiazhuang, Hebei, China
- Key Laboratory of Immune mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, Hebei, China
| | - Wenjian Li
- Department of Immunology, Hebei Medical University, Shijiazhuang, Hebei, China
- Key Laboratory of Immune mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, Hebei, China
| | - Kai Wang
- Department of hepatobiliary surgery, Shanghai 455 Hospital, Shanghai, China
| | - Lin Wei
- Department of Immunology, Hebei Medical University, Shijiazhuang, Hebei, China
- Key Laboratory of Immune mechanism and Intervention on Serious Disease in Hebei Province, Shijiazhuang, Hebei, China
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27
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Wang Z, Yi T, Long M, Gao Y, Cao C, Huang C, Wang Q, Yin N, Chen Z. Electro-Acupuncture at Zusanli Acupoint (ST36) Suppresses Inflammation in Allergic Contact Dermatitis Via Triggering Local IL-10 Production and Inhibiting p38 MAPK Activation. Inflammation 2018; 40:1351-1364. [PMID: 28493082 DOI: 10.1007/s10753-017-0578-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Acupuncture has shown beneficial effect in the treatment of multiple dermatologic conditions including dermatitis, pruritus, urticaria, and hyperhidrosis; however, the detailed mechanisms are still kept unclear. This study aimed to investigate if electro-acupuncture (EA) treatment prevents 2,4-dinitrofluorobenzene (DNFB)-induced allergic contact dermatitis (ACD) in rats and explore its underlying mechanisms. ACD was induced by sensitizing and challenging with DNFB topically. Rats were treated daily following bilateral subcutaneous stimulation of EA at Zusanli acupoint (ST36) for 1 week. Ear swelling and serum IgE levels were measured. The ear biopsies were obtained for histology. Inflammatory cytokines on the dermatological ear and local acupoint tissue were assayed. Spleen lymphocytes and the homogenized supernatant of local acupuncture area were used to co-culture for flow cytology and immune analysis, respectively. EA treatment at ST36 notably inhibited ear swelling and inflammatory cell infiltration on DNFB-induced ACD. EA also decreased serum IgE concentrations and alleviated the production of inflammatory cytokines in dermatological ear. Additionally, EA treatment attenuated the percentage of CD4+IFN-γ+ and CD4+IL-4+ T cells associated with ACD. Interestingly, secretion of interleukin (IL)-10 in the local acupoint tissue following EA stimulation was increased and showed suppressive function when co-cultured with the spleen lymphocytes from DNFB group. Lastly, EA treatment demonstrably suppressed p38 MAPK activation in DNFB-treated rats. Our findings suggest that EA treatment at ST36 may ameliorate inflammation associated with DNFB-induced ACD via triggering local IL-10 production and inhibiting p38 MAPK activation, which provide an alternative and promising therapy for ACD.
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Affiliation(s)
- Zhigang Wang
- Department of Pathogen Biology, College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Tao Yi
- College of Acupuncture and Moxibustion, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Man Long
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Yisen Gao
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Chunhao Cao
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Chenwei Huang
- College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Qian Wang
- Department of Pathogen Biology, College of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Nina Yin
- Department of Anatomy, College of Basic Medicine, Hubei University of Chinese Medicine, 1 Huangjiahu West Road, Hongshan District, Wuhan, Hubei, 430065, China. .,Hubei Provincial Collaborative Innovation Center of Preventive Treatment by Acupuncture and Moxibustion, Hubei University of Chinese Medicine, 1 Huangjiahu West Road, Hongshan District, Wuhan, Hubei, 430065, China.
| | - Zebin Chen
- Hubei Provincial Collaborative Innovation Center of Preventive Treatment by Acupuncture and Moxibustion, Hubei University of Chinese Medicine, 1 Huangjiahu West Road, Hongshan District, Wuhan, Hubei, 430065, China.
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28
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Dendritic cell recruitment and activation in autoimmunity. J Autoimmun 2017; 85:126-140. [DOI: 10.1016/j.jaut.2017.07.012] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 07/26/2017] [Indexed: 12/11/2022]
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29
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Bone Marrow-Derived Tenascin-C Attenuates Cardiac Hypertrophy by Controlling Inflammation. J Am Coll Cardiol 2017; 70:1601-1615. [PMID: 28935038 DOI: 10.1016/j.jacc.2017.07.789] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 07/24/2017] [Accepted: 07/31/2017] [Indexed: 01/19/2023]
Abstract
BACKGROUND Tenascin-C (TNC) is a highly conserved matricellular protein with a distinct expression pattern during development and disease. Remodeling of the left ventricle (LV) in response to pressure overload leads to the re-expression of the fetal gene program. OBJECTIVES The aim of this study was to investigate the function of TNC in cardiac hypertrophy in response to pressure overload. METHODS Pressure overload was induced in TNC knockout and wild-type mice by constricting their abdominal aorta or by infusion of angiotensin II. Echocardiography, immunostaining, flow cytometry, quantitative real-time polymerase chain reaction, and reciprocal bone marrow transplantation were used to evaluate the effect of TNC deficiency. RESULTS Echocardiographic analysis of pressure overloaded hearts revealed that all LV parameters (LV end-diastolic and -systolic dimensions, ejection fraction, and fractional shortening) deteriorated in TNC-deficient mice compared with their wild-type counterparts. Cardiomyocyte size and collagen accumulation were significantly greater in the absence of TNC. Mechanistically, TNC deficiency promoted rapid accumulation of the CCR2+/Ly6Chi monocyte/macrophage subset into the myocardium in response to pressure overload. Further, echocardiographic and immunohistochemical analyses of recipient hearts showed that expression of TNC in the bone marrow, but not the myocardium, protected the myocardium against excessive remodeling of the pressure-overloaded heart. CONCLUSIONS TNC deficiency further impaired cardiac function in response to pressure overload and exacerbated fibrosis by enhancing inflammation. In addition, expression of TNC in the bone marrow, but not the myocardium, protected the myocardium against excessive remodeling in response to mild pressure overload.
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30
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Domaszewska T, Scheuermann L, Hahnke K, Mollenkopf H, Dorhoi A, Kaufmann SHE, Weiner J. Concordant and discordant gene expression patterns in mouse strains identify best-fit animal model for human tuberculosis. Sci Rep 2017; 7:12094. [PMID: 28935874 PMCID: PMC5608750 DOI: 10.1038/s41598-017-11812-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 08/30/2017] [Indexed: 12/22/2022] Open
Abstract
Immunity in infection, inflammation and malignancy differs markedly in man and mouse. Still, we learn about human immunity in large extent from experimental mouse models. We propose a novel data integration approach which identifies concordant and discordant gene expression patterns of the immune responses in heterologous data sets. We have conducted experiments to compare human and murine transcriptional responses to Mycobacterium tuberculosis (Mtb) infection in whole blood (WB) as well as macrophages and compared them with simulated as well as publicly available data. Our results indicate profound differences between patterns of gene expression in innate and adaptive immunity in man and mouse upon Mtb infection. We characterized differential expression of T-cell related genes corresponding to the differences in phenotype between tuberculosis (TB) highly and low susceptible mouse strains. Our approach is general and facilitates the choice of optimal animal model for studies of the human immune response to a particular disease.
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Affiliation(s)
- Teresa Domaszewska
- Max Planck Institute for Infection Biology, Department of Immunology, Charitéplatz 1, D-10117, Berlin, Germany
| | - Lisa Scheuermann
- Max Planck Institute for Infection Biology, Department of Immunology, Charitéplatz 1, D-10117, Berlin, Germany
| | - Karin Hahnke
- Max Planck Institute for Infection Biology, Department of Immunology, Charitéplatz 1, D-10117, Berlin, Germany
| | - Hans Mollenkopf
- Max Planck Institute for Infection Biology, Department of Immunology, Charitéplatz 1, D-10117, Berlin, Germany
| | - Anca Dorhoi
- Max Planck Institute for Infection Biology, Department of Immunology, Charitéplatz 1, D-10117, Berlin, Germany
| | - Stefan H E Kaufmann
- Max Planck Institute for Infection Biology, Department of Immunology, Charitéplatz 1, D-10117, Berlin, Germany.
| | - January Weiner
- Max Planck Institute for Infection Biology, Department of Immunology, Charitéplatz 1, D-10117, Berlin, Germany.
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31
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Lobo-Silva D, Carriche GM, Castro AG, Roque S, Saraiva M. Interferon-β regulates the production of IL-10 by toll-like receptor-activated microglia. Glia 2017; 65:1439-1451. [PMID: 28617991 PMCID: PMC7165667 DOI: 10.1002/glia.23172] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 05/09/2017] [Accepted: 05/10/2017] [Indexed: 12/28/2022]
Abstract
Pattern recognition receptors, such as toll‐like receptors (TLRs), perceive tissue alterations and initiate local innate immune responses. Microglia, the resident macrophages of the brain, encode TLRs which primary role is to protect the tissue integrity. However, deregulated activation of TLRs in microglia may lead to chronic neurodegeneration. This double role of microglial responses is often reported in immune‐driven neurologic diseases, as in multiple sclerosis (MS). Consequently, strategies to manipulate microglia inflammatory responses may help to ameliorate disease progression. In this context, the anti‐inflammatory cytokine interleukin (IL)‐10 appears as an attractive target. In this study, we investigated how activation of microglia by TLRs with distinct roles in MS impacts on IL‐10 production. We found that activation of TLR2, TLR4, and TLR9 induced the production of IL‐10 to a greater extent than activation of TLR3. This was surprising as both TLR3 and IL‐10 play protective roles in animal models of MS. Interestingly, combination of TLR3 triggering with the other TLRs, enhanced IL‐10 through the modulation of its transcription, via interferon (IFN)‐β, but independently of IL‐27. Thus, in addition to the modulation of inflammatory responses of the periphery described for the axis TLR3/IFN‐β, we now report a direct modulation of microglial responses. We further show that the presence of IFN‐γ in the microenvironment abrogated the modulation of IL‐10 by TLR3, whereas that of IL‐17 had no effect. Considering the therapeutic application of IFN‐β in MS, our study bears important implications for the understanding of the cytokine network regulating microglia responses in this setting.
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Affiliation(s)
- Diogo Lobo-Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Guilhermina M Carriche
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - A Gil Castro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Margarida Saraiva
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
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32
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Blank T, Prinz M. Type I interferon pathway in CNS homeostasis and neurological disorders. Glia 2017; 65:1397-1406. [PMID: 28519900 DOI: 10.1002/glia.23154] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 04/01/2017] [Accepted: 04/04/2017] [Indexed: 01/12/2023]
Abstract
Type I interferons (IFNs), IFN-α and IFN-β, represent the major effector cytokines of the host immune response against viruses and other intracellular pathogens. These cytokines are produced via activation of numerous pattern recognition receptors, including the Toll-like receptor signaling network, retinoic acid-inducible gene-1 (RIG-1), melanoma differentiation-associated protein-5 (MDA-5) and interferon gamma-inducible protein-16 (IFI-16). Whilst the contribution of type I IFNs to peripheral immunity is well documented, they can also be produced by almost every cell in the central nervous system (CNS). Furthermore, IFNs can reach the CNS from the periphery to modulate the function of not only microglia and astrocytes, but also neurons and oligodendrocytes, with major consequences for cognition and behavior. Given the pleiotropic nature of type I IFNs, it is critical to determine their exact cellular impact. Inappropriate upregulation of type I IFN signaling and interferon-stimulated gene expression have been linked to several CNS diseases termed "interferonopathies" including Aicardi-Goutieres syndrome and ubiquitin specific peptidase 18 (USP18)-deficiency. In contrast, in the CNS of mice with virus-induced neuroinflammation, type I IFNs can limit production of other cytokines to prevent potential damage associated with chronic cytokine expression. This capacity of type I IFNs could also explain the therapeutic benefits of exogenous type I IFN in chronic CNS autoimmune diseases such as multiple sclerosis. In this review we will highlight the importance of a well-balanced level of type I IFNs for healthy brain physiology, and to what extent dysregulation of this cytokine system can result in brain 'interferonopathies'.
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Affiliation(s)
- Thomas Blank
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Marco Prinz
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,BIOSS Centre for Biological Signalling Studies, University of Freiburg, Freiburg, Germany
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33
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Cunha C, Gonçalves SM, Duarte-Oliveira C, Leite L, Lagrou K, Marques A, Lupiañez CB, Mesquita I, Gaifem J, Barbosa AM, Pinho Vaz C, Branca R, Campilho F, Freitas F, Ligeiro D, Lass-Flörl C, Löffler J, Jurado M, Saraiva M, Kurzai O, Rodrigues F, Castro AG, Silvestre R, Sainz J, Maertens JA, Torrado E, Jacobsen ID, Lacerda JF, Campos A, Carvalho A. IL-10 overexpression predisposes to invasive aspergillosis by suppressing antifungal immunity. J Allergy Clin Immunol 2017; 140:867-870.e9. [PMID: 28389392 DOI: 10.1016/j.jaci.2017.02.034] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/18/2017] [Accepted: 02/15/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Cristina Cunha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Samuel M Gonçalves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Cláudio Duarte-Oliveira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Luís Leite
- Serviço de Transplantação de Medula Óssea, Instituto Português de Oncologia do Porto, Porto, Portugal
| | - Katrien Lagrou
- Department of Microbiology and Immunology, KU Leuven-University of Leuven, Leuven, Belgium; Department of Laboratory Medicine and National Reference Center for Medical Mycology, University Hospitals Leuven, Leuven, Belgium
| | - António Marques
- Serviço de Imuno-Hemoterapia, Hospital de Braga, Braga, Portugal
| | - Carmen B Lupiañez
- Genomic Oncology Area, GENYO, Center for Genomics and Oncological Research, Pfizer/University of Granada/Andalusian Regional Government, PTS Granada, Granada, Spain; Hematology Department, Virgen de las Nieves University Hospital, Granada, Spain
| | - Inês Mesquita
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Joana Gaifem
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ana Margarida Barbosa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Carlos Pinho Vaz
- Serviço de Transplantação de Medula Óssea, Instituto Português de Oncologia do Porto, Porto, Portugal
| | - Rosa Branca
- Serviço de Transplantação de Medula Óssea, Instituto Português de Oncologia do Porto, Porto, Portugal
| | - Fernando Campilho
- Serviço de Transplantação de Medula Óssea, Instituto Português de Oncologia do Porto, Porto, Portugal
| | - Fátima Freitas
- Instituto Português do Sangue e Transplantação, IP, Porto, Portugal
| | - Dário Ligeiro
- Instituto Português do Sangue e Transplantação, IP, Lisbon, Portugal
| | - Cornelia Lass-Flörl
- Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Jürgen Löffler
- Department of Internal Medicine II, University Hospital of Würzburg, Würzburg, Germany
| | - Manuel Jurado
- Genomic Oncology Area, GENYO, Center for Genomics and Oncological Research, Pfizer/University of Granada/Andalusian Regional Government, PTS Granada, Granada, Spain; Hematology Department, Virgen de las Nieves University Hospital, Granada, Spain
| | - Margarida Saraiva
- i3S-Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal; IBMC-Instituto de Biologia Molecular e Celular, University of Porto, Porto, Portugal
| | - Oliver Kurzai
- Septomics Research Centre, Friedrich Schiller University and Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Jena, Germany
| | - Fernando Rodrigues
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - António G Castro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ricardo Silvestre
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Juan Sainz
- Genomic Oncology Area, GENYO, Center for Genomics and Oncological Research, Pfizer/University of Granada/Andalusian Regional Government, PTS Granada, Granada, Spain; Hematology Department, Virgen de las Nieves University Hospital, Granada, Spain
| | - Johan A Maertens
- Department of Hematology, University Hospitals Leuven, Leuven, Belgium
| | - Egídio Torrado
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ilse D Jacobsen
- Research Group Microbial Immunology, Friedrich Schiller University and Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Jena, Germany
| | - João F Lacerda
- Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Lisbon, Portugal; Serviço de Hematologia e Transplantação de Medula, Hospital de Santa Maria, Lisbon, Portugal
| | - António Campos
- Serviço de Transplantação de Medula Óssea, Instituto Português de Oncologia do Porto, Porto, Portugal
| | - Agostinho Carvalho
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal; ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal.
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34
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IL-21 May Promote Granzyme B-Dependent NK/Plasmacytoid Dendritic Cell Functional Interaction in Cutaneous Lupus Erythematosus. J Invest Dermatol 2017; 137:1493-1500. [PMID: 28344062 DOI: 10.1016/j.jid.2017.03.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 02/14/2017] [Accepted: 03/06/2017] [Indexed: 12/13/2022]
Abstract
Autoimmune skin lesions are characterized by a complex cytokine milieu and by the accumulation of plasmacytoid dendritic cells (pDCs). Granzyme B (GrB) transcript is abundant in activated pDCs, though its mechanisms of regulation and biological role are largely unknown. Here we report that IL-21 was the only T helper 1/T helper 17 cytokine able to induce the expression and secretion of GrB by pDCs and that this action was counteracted by the autocrine production of type I IFNs. In lupus erythematosus skin lesions, the percentage of GrB+ pDCs directly correlated with the IL-21/MxA ratio, indicating that the interplay between these two cytokines finely tunes the levels of pDC-dependent GrB also in vivo. In lupus erythematosus, pDCs colocalized with professional cytotoxic cells at sites of epithelial damage, suggesting a role in keratinocyte killing. Accordingly, we demonstrate that supernatants of IL-21-activated pDCs promoted autologous keratinocyte killing by natural killer cells and this action was dependent on GrB. These results propose a GrB-dependent functional interaction between pDCs and natural killer cells and highlight a negative feedback regulation by type I IFNs in vitro and in vivo that may function to limit excessive tissue damage.
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35
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IL-10: A Multifunctional Cytokine in Viral Infections. J Immunol Res 2017; 2017:6104054. [PMID: 28316998 PMCID: PMC5337865 DOI: 10.1155/2017/6104054] [Citation(s) in RCA: 214] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 01/13/2017] [Accepted: 02/01/2017] [Indexed: 12/15/2022] Open
Abstract
The anti-inflammatory master regulator IL-10 is critical to protect the host from tissue damage during acute phases of immune responses. This regulatory mechanism, central to T cell homeostasis, can be hijacked by viruses to evade immunity. IL-10 can be produced by virtually all immune cells, and it can also modulate the function of these cells. Understanding the effects of this multifunctional cytokine is therefore a complex task. In the present review we discuss the factors driving IL-10 production and the cellular sources of the cytokine during antiviral immune responses. We particularly focus on the IL-10 regulatory mechanisms that impact antiviral immune responses and how viruses can use this central regulatory pathway to evade immunity and establish chronic/latent infections.
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