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Zhang Z, Ge M, Wu D, Li W, Chen W, Liu P, Zhang H, Yang Y. Resveratrol-loaded sulfated Hericium erinaceus β-glucan-chitosan nanoparticles: Preparation, characterization and synergistic anti-inflammatory effects. Carbohydr Polym 2024; 332:121916. [PMID: 38431417 DOI: 10.1016/j.carbpol.2024.121916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 01/25/2024] [Accepted: 02/04/2024] [Indexed: 03/05/2024]
Abstract
Resveratrol (RES) is a natural polyphenol with excellent biological activity. But the poor stability and bioavailability of RES severely limit its application. Thus, the resveratrol-loaded sulfated Hericium erinaceus β-glucan-chitosan nanoparticles (DS-CS-RES NPs) were prepared using electrostatic self-assembly to solve these problems in this study. The structure of DS-CS-RES NPs was spherical or sub spherical shape with small average particle size (191.07 nm), which was characterized by FT-IR, FS, XRD and TEM. DS-CS-RES NPs exhibited good stability and RES had a sustainable release from the nanoparticles in gastrointestinal digestion. Meanwhile, DS-CS-RES NPs could improve the inflammatory injury of LPS stimulated RAW264.7 macrophages by inhibiting the production of NO, IL-1β, IL-6 and TNF-α. Furthermore, DS-CS-RES NPs had strong anti-inflammatory activity by regulating protein levels of NF-κB p65, STAT1 and TLR4 through NF-κB and JAK-STAT1 signaling pathway in vitro, and sulfated H. erinaceus β-glucan-chitosan nanoparticle (DS-CS NPs) and RES had synergistic anti-inflammatory effect. Overall, DS-CS NPs can serve as a potential green and safe functional carrier for encapsulating resveratrol, which can improve its anti-inflammatory activity. This work may be conducive to the development of functional carrier for encapsulating RES and applications of hydrophobic active molecules in functional foods or medicines.
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Affiliation(s)
- Zhong Zhang
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, National Engineering Research Center of Edible Fungi, Shanghai 201403, China
| | - Meili Ge
- College of Food Science & Engineering, Shanghai Ocean University, Shanghai 201306, China
| | - Di Wu
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, National Engineering Research Center of Edible Fungi, Shanghai 201403, China
| | - Wen Li
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, National Engineering Research Center of Edible Fungi, Shanghai 201403, China
| | - Wanchao Chen
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, National Engineering Research Center of Edible Fungi, Shanghai 201403, China
| | - Peng Liu
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, National Engineering Research Center of Edible Fungi, Shanghai 201403, China
| | - Haiyun Zhang
- Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
| | - Yan Yang
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, National Engineering Research Center of Edible Fungi, Shanghai 201403, China.
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2
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Querrey M, Chiu S, Lecuona E, Wu Q, Sun H, Anderson M, Kelly M, Ravi S, Misharin AV, Kreisel D, Bharat A, Budinger GS. CD11b suppresses TLR activation of nonclassical monocytes to reduce primary graft dysfunction after lung transplantation. J Clin Invest 2022; 132:157262. [PMID: 35838047 PMCID: PMC9282933 DOI: 10.1172/jci157262] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 05/25/2022] [Indexed: 02/03/2023] Open
Abstract
Primary graft dysfunction (PGD) is the leading cause of postoperative mortality in lung transplant recipients and the most important risk factor for development of chronic lung allograft dysfunction. The mechanistic basis for the variability in the incidence and severity of PGD between lung transplant recipients is not known. Using a murine orthotopic vascularized lung transplant model, we found that redundant activation of Toll-like receptors 2 and 4 (TLR2 and -4) on nonclassical monocytes activates MyD88, inducing the release of the neutrophil attractant chemokine CXCL2. Deletion of Itgam (encodes CD11b) in nonclassical monocytes enhanced their production of CXCL2 and worsened PGD, while a CD11b agonist, leukadherin-1, administered only to the donor lung prior to lung transplantation, abrogated CXCL2 production and PGD. The damage-associated molecular pattern molecule HMGB1 was increased in peripheral blood samples from patients undergoing lung transplantation after reperfusion and induced CXCL2 production in nonclassical monocytes via TLR4/MyD88. An inhibitor of HMGB1 administered to the donor and recipient prior to lung transplantation attenuated PGD. Our findings suggest that CD11b acts as a molecular brake to prevent neutrophil recruitment by nonclassical monocytes following lung transplantation, revealing an attractive therapeutic target in the donor lung to prevent PGD in lung transplant recipients.
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Affiliation(s)
- Melissa Querrey
- Division of Pulmonary and Critical Care Medicine and,Division of Thoracic Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Stephen Chiu
- Division of Thoracic Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Emilia Lecuona
- Division of Thoracic Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Qiang Wu
- Division of Thoracic Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Haiying Sun
- Division of Thoracic Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Megan Anderson
- Division of Thoracic Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Megan Kelly
- Division of Thoracic Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Sowmya Ravi
- Division of Thoracic Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | | | - Daniel Kreisel
- Department of Surgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA
| | - Ankit Bharat
- Division of Thoracic Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - G.R. Scott Budinger
- Division of Pulmonary and Critical Care Medicine and,Division of Thoracic Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
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3
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Stegelmeier AA, Darzianiazizi M, Hanada K, Sharif S, Wootton SK, Bridle BW, Karimi K. Type I Interferon-Mediated Regulation of Antiviral Capabilities of Neutrophils. Int J Mol Sci 2021; 22:4726. [PMID: 33946935 PMCID: PMC8125486 DOI: 10.3390/ijms22094726] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/09/2021] [Accepted: 04/27/2021] [Indexed: 02/07/2023] Open
Abstract
Interferons (IFNs) are induced by viruses and are the main regulators of the host antiviral response. They balance tissue tolerance and immune resistance against viral challenges. Like all cells in the human body, neutrophils possess the receptors for IFNs and contribute to antiviral host defense. To combat viruses, neutrophils utilize various mechanisms, such as viral sensing, neutrophil extracellular trap formation, and antigen presentation. These mechanisms have also been linked to tissue damage during viral infection and inflammation. In this review, we presented evidence that a complex cross-regulatory talk between IFNs and neutrophils initiates appropriate antiviral immune responses and regulates them to minimize tissue damage. We also explored recent exciting research elucidating the interactions between IFNs, neutrophils, and severe acute respiratory syndrome-coronavirus-2, as an example of neutrophil and IFN cross-regulatory talk. Dissecting the IFN-neutrophil paradigm is needed for well-balanced antiviral therapeutics and development of novel treatments against many major epidemic or pandemic viral infections, including the ongoing pandemic of the coronavirus disease that emerged in 2019.
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Affiliation(s)
| | | | | | | | | | - Byram W. Bridle
- Correspondence: (B.W.B.); (K.K.); Tel.: +1-(519)-824-4120 (ext. 54657) (B.W.B.); +1-(519)-824-4120 (ext. 54668) (K.K.)
| | - Khalil Karimi
- Correspondence: (B.W.B.); (K.K.); Tel.: +1-(519)-824-4120 (ext. 54657) (B.W.B.); +1-(519)-824-4120 (ext. 54668) (K.K.)
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4
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Swidergall M. Candida albicans at Host Barrier Sites: Pattern Recognition Receptors and Beyond. Pathogens 2019; 8:E40. [PMID: 30934602 PMCID: PMC6471378 DOI: 10.3390/pathogens8010040] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 03/19/2019] [Accepted: 03/21/2019] [Indexed: 12/29/2022] Open
Abstract
Over the last decades, fungal infections have emerged as a growing threat to human health. Although the human body is at potential risk, various body sites host several commensal fungal species, including Candida albicans. In healthy individuals, C. albicans colonizes different mucosal surfaces without causing harm, while under diverse circumstances the fungus can proliferate and cause disease. In this context, the understanding of host⁻C. albicans interactions in health and during infection may lead to novel therapeutic approaches. Importantly, host cells express pattern recognition receptors (PRRs), which sense conserved fungal structures and orchestrate innate immune responses. Herein, important findings on the topic of the recognition of C. albicans at host barrier sites are discussed. This review briefly summarizes the importance and functions of myeloid PRRs, reviews the fungal recognition and biology of stromal cells, and highlights important C. albicans virulence attributes during site-specific proliferation and invasion.
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Affiliation(s)
- Marc Swidergall
- Division of Infectious Diseases, Harbor-UCLA Medical Center, Torrance, CA 90502, USA.
- Institute for Infection and Immunity, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Torrance, CA 90502, USA.
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5
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Pan YG, Yu YL, Lin CC, Lanier LL, Chu CL. FcεRI γ-Chain Negatively Modulates Dectin-1 Responses in Dendritic Cells. Front Immunol 2017; 8:1424. [PMID: 29163499 PMCID: PMC5663849 DOI: 10.3389/fimmu.2017.01424] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 10/13/2017] [Indexed: 12/15/2022] Open
Abstract
The inhibitory effect of immunoreceptor tyrosine-based activation motif (ITAM)-containing adapters DAP12 and FcεRI γ-chain (FcRγ) has been found in many immune functions. Herein, we have further explored the role of these adapters in C-type lectin receptors response. We identified that FcRγ, but not DAP12, could negatively regulate the Dectin-1 responses in dendritic cells (DCs). Loss of FcRγ or both DAP12 and FcRγ enhanced the maturation and cytokine production in DCs upon Dectin-1 activation compared to normal cells, whereas DCs lacking only DAP12 showed little changes. In addition, increments of T cell activation and T helper 17 polarization induced by FcRγ-deficient DCs were observed both in vitro and in vivo. Examining the Dectin-1 signaling, we revealed that the activations of several signaling molecules were augmented in FcRγ-deficient DCs stimulated with Dectin-1 ligands. Furthermore, we demonstrated that the association of phosphatases SHP-1 and PTEN with FcRγ may contribute to the negative regulation of FcRγ in Dectin-1 activation in DCs. These results extend the inhibitory effect of ITAM-containing adapters to Dectin-1 response in immune functions, even though Dectin-1 contains an ITAM-like intracellular domain. According to the role of Dectin-1 in responding to microbes and tumor cells, our finding may have applications in the development of vaccine and cancer therapy.
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Affiliation(s)
- Yi-Gen Pan
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yen-Ling Yu
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Miaoli County, Taiwan
| | - Chi-Chien Lin
- Institute of Biomedical Sciences, National Chung Hsin University, Taichung, Taiwan
| | - Lewis L Lanier
- Department of Microbiology and Immunology, University of California San Francisco, San Francisco, CA, United States.,The Parker Institute for Cancer Immunotherapy, University of California San Francisco, San Francisco, CA, United States
| | - Ching-Liang Chu
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan
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6
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Hirsch I, Janovec V, Stranska R, Bendriss-Vermare N. Cross Talk between Inhibitory Immunoreceptor Tyrosine-Based Activation Motif-Signaling and Toll-Like Receptor Pathways in Macrophages and Dendritic Cells. Front Immunol 2017; 8:394. [PMID: 28439271 PMCID: PMC5383719 DOI: 10.3389/fimmu.2017.00394] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Accepted: 03/21/2017] [Indexed: 01/12/2023] Open
Abstract
The innate immune cells sense microbial infection and self-ligands by pathogen recognition receptors (PRRs), such as toll-like receptors (TLRs) and regulatory receptors (RRs), associated with immunoreceptor tyrosine-based activation motif (ITAM). Rapid activation and concerted action of PRRs signaling and feedback inhibitory mechanisms must be engaged to ensure the host defense functions and to prevent cytotoxicity associated with excessive activation. ITAM-associated RRs can generate stimulatory or, paradoxically, inhibitory signals. The network of ITAM-associated RR, together with TLR-signaling pathways, are responsible for immunogenic or tolerogenic responses of macrophages and dendritic cells to their microenvironment. In macrophages, TLR4 signaling is inhibited by low-avidity ligation of ITAM-associated receptors, while high-avidity ligation of ITAM-associated receptors results in potentiation of TLR4 signaling together with resistance to extracellular cytokine microenvironment signals. In contrast to macrophages, TLR7/9 signaling in plasmacytoid DCs (pDCs) is inhibited by high-avidity ligation of ITAM-associated RR, while low-avidity ligation does not show any effect. Surprisingly, interference of ITAM-associated receptor signaling with TLR pathways has not been reported in conventional dendritic cells. Here, we present an overview of molecular mechanisms acting at the crossroads of TLR and ITAM-signaling pathways and address the question of how the high-avidity engagement of the ITAM-associated receptors in pDCs inhibits TLR7/9 signaling. Cellular context and spatiotemporal engagement of ITAM- and TLR-signaling pathways are responsible for different outcomes of macrophage versus pDC activation. While the cross-regulation of cytokine and TLR signaling, together with antigen presentation, are the principal functions of ITAM-associated RR in macrophages, the major role of these receptors in pDCs seems to be related to inhibition of cytokine production and reestablishment of a tolerogenic state following pDC activation. Pharmacologic targeting of TLR and ITAM signaling could be an attractive new therapeutic approach for treatment of chronic infections, cancer, and autoimmune and inflammatory diseases related to pDCs.
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Affiliation(s)
- Ivan Hirsch
- Faculty of Science, Charles University, Prague, Czech Republic.,Institute of Molecular Genetics, ASCR, Prague, Czech Republic.,Institute of Organic Chemistry and Biochemistry, ASCR, Prague, Czech Republic.,Cancer Research Center Marseille, INSERM U 1068, CNRS, UMR7258, Marseille, France.,Institut Paoli-Calmettes, Aix-Marseille University, Marseille, France
| | - Vaclav Janovec
- Faculty of Science, Charles University, Prague, Czech Republic.,Institute of Molecular Genetics, ASCR, Prague, Czech Republic.,Institute of Organic Chemistry and Biochemistry, ASCR, Prague, Czech Republic
| | - Ruzena Stranska
- Cancer Research Center Marseille, INSERM U 1068, CNRS, UMR7258, Marseille, France.,Institut Paoli-Calmettes, Aix-Marseille University, Marseille, France
| | - Nathalie Bendriss-Vermare
- INSERM 1052, CNRS 5286, Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Univ Lyon, Université Claude Bernard Lyon 1, Lyon, France
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7
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Faridi MH, Khan SQ, Zhao W, Lee HW, Altintas MM, Zhang K, Kumar V, Armstrong AR, Carmona-Rivera C, Dorschner JM, Schnaith AM, Li X, Ghodke-Puranik Y, Moore E, Purmalek M, Irizarry-Caro J, Zhang T, Day R, Stoub D, Hoffmann V, Khaliqdina SJ, Bhargava P, Santander AM, Torroella-Kouri M, Issac B, Cimbaluk DJ, Zloza A, Prabhakar R, Deep S, Jolly M, Koh KH, Reichner JS, Bradshaw EM, Chen J, Moita LF, Yuen PS, Li Tsai W, Singh B, Reiser J, Nath SK, Niewold TB, Vazquez-Padron RI, Kaplan MJ, Gupta V. CD11b activation suppresses TLR-dependent inflammation and autoimmunity in systemic lupus erythematosus. J Clin Invest 2017; 127:1271-1283. [PMID: 28263189 PMCID: PMC5373862 DOI: 10.1172/jci88442] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 01/13/2017] [Indexed: 12/16/2022] Open
Abstract
Genetic variations in the ITGAM gene (encoding CD11b) strongly associate with risk for systemic lupus erythematosus (SLE). Here we have shown that 3 nonsynonymous ITGAM variants that produce defective CD11b associate with elevated levels of type I interferon (IFN-I) in lupus, suggesting a direct link between reduced CD11b activity and the chronically increased inflammatory status in patients. Treatment with the small-molecule CD11b agonist LA1 led to partial integrin activation, reduced IFN-I responses in WT but not CD11b-deficient mice, and protected lupus-prone MRL/Lpr mice from end-organ injury. CD11b activation reduced TLR-dependent proinflammatory signaling in leukocytes and suppressed IFN-I signaling via an AKT/FOXO3/IFN regulatory factor 3/7 pathway. TLR-stimulated macrophages from CD11B SNP carriers showed increased basal expression of IFN regulatory factor 7 (IRF7) and IFN-β, as well as increased nuclear exclusion of FOXO3, which was suppressed by LA1-dependent activation of CD11b. This suggests that pharmacologic activation of CD11b could be a potential mechanism for developing SLE therapeutics.
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Affiliation(s)
- Mohd Hafeez Faridi
- Drug Discovery Center, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Samia Q. Khan
- Drug Discovery Center, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Wenpu Zhao
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, Maryland, USA
| | - Ha Won Lee
- Drug Discovery Center, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Mehmet M. Altintas
- Drug Discovery Center, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Kun Zhang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Vinay Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India
| | - Andrew R. Armstrong
- Drug Discovery Center, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Carmelo Carmona-Rivera
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, Maryland, USA
| | | | | | - Xiaobo Li
- Drug Discovery Center, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | | | - Erica Moore
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, Maryland, USA
| | - Monica Purmalek
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, Maryland, USA
| | - Jorge Irizarry-Caro
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, Maryland, USA
| | - Tingting Zhang
- Department of Chemistry, University of Miami, Coral Gables, Florida, USA
| | - Rachael Day
- Department of Chemistry and Biochemistry, Dordt College, Sioux Center, Iowa, USA
| | - Darren Stoub
- Department of Chemistry and Biochemistry, Dordt College, Sioux Center, Iowa, USA
| | - Victoria Hoffmann
- Pathology Branch, Division of Veterinary Resources, Office of the Director, NIH, Bethesda, Maryland, USA
| | | | - Prachal Bhargava
- Drug Discovery Center, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Ana M. Santander
- Sylvester Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Marta Torroella-Kouri
- Sylvester Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Biju Issac
- Sylvester Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - David J. Cimbaluk
- Department of Pathology, Rush University Medical School, Chicago, Illinois, USA
| | - Andrew Zloza
- Section of Surgical Oncology Research, Rutgers Cancer Institute of New Jersey, and Department of Surgery, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, New Jersey, USA
| | - Rajeev Prabhakar
- Department of Chemistry, University of Miami, Coral Gables, Florida, USA
| | - Shashank Deep
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India
| | - Meenakshi Jolly
- Division of Rheumatology, Department of Internal Medicine, Rush University Medical School, Chicago, Illinois, USA
| | - Kwi Hye Koh
- Drug Discovery Center, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Jonathan S. Reichner
- Division of Surgical Research, Department of Surgery, Rhode Island Hospital, Providence, Rhode Island, USA
| | - Elizabeth M. Bradshaw
- Division of Immunology, Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts, USA
| | - JianFeng Chen
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Luis F. Moita
- Innate Immune and Inflammation Laboratory, Instituto Gulbenkian de Ciência, Oeiras, Portugal
| | - Peter S. Yuen
- National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, Maryland, USA
| | - Wanxia Li Tsai
- Office of Science and Technology, National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, Maryland, USA
| | - Bhupinder Singh
- Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Jochen Reiser
- Drug Discovery Center, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, USA
| | - Swapan K. Nath
- Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | | | | | - Mariana J. Kaplan
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, NIH, Bethesda, Maryland, USA
| | - Vineet Gupta
- Drug Discovery Center, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, USA
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8
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Cappelletti M, Presicce P, Lawson MJ, Chaturvedi V, Stankiewicz TE, Vanoni S, Harley IT, McAlees JW, Giles DA, Moreno-Fernandez ME, Rueda CM, Senthamaraikannan P, Sun X, Karns R, Hoebe K, Janssen EM, Karp CL, Hildeman DA, Hogan SP, Kallapur SG, Chougnet CA, Way SS, Divanovic S. Type I interferons regulate susceptibility to inflammation-induced preterm birth. JCI Insight 2017; 2:e91288. [PMID: 28289719 DOI: 10.1172/jci.insight.91288] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Preterm birth (PTB) is a leading worldwide cause of morbidity and mortality in infants. Maternal inflammation induced by microbial infection is a critical predisposing factor for PTB. However, biological processes associated with competency of pathogens, including viruses, to induce PTB or sensitize for secondary bacterial infection-driven PTB are unknown. We show that pathogen/pathogen-associated molecular pattern-driven activation of type I IFN/IFN receptor (IFNAR) was sufficient to prime for systemic and uterine proinflammatory chemokine and cytokine production and induction of PTB. Similarly, treatment with recombinant type I IFNs recapitulated such effects by exacerbating proinflammatory cytokine production and reducing the dose of secondary inflammatory challenge required for induction of PTB. Inflammatory challenge-driven induction of PTB was eliminated by defects in type I IFN, TLR, or IL-6 responsiveness, whereas the sequence of type I IFN sensing by IFNAR on hematopoietic cells was essential for regulation of proinflammatory cytokine production. Importantly, we also show that type I IFN priming effects are conserved from mice to nonhuman primates and humans, and expression of both type I IFNs and proinflammatory cytokines is upregulated in human PTB. Thus, activation of the type I IFN/IFNAR axis in pregnancy primes for inflammation-driven PTB and provides an actionable biomarker and therapeutic target for mitigating PTB risk.
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Affiliation(s)
| | - Pietro Presicce
- Division of Neonatology/Pulmonary Biology, Cincinnati Children's Hospital Research Foundation
| | - Matthew J Lawson
- Division of Immunobiology.,Molecular, Cellular and Biochemical Pharmacology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | | | - Simone Vanoni
- Division of Allergy and Immunology, Cincinnati Children's Hospital Research Foundation, and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | | | - Daniel A Giles
- Division of Immunobiology.,Immunology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | | | | | | | - Rebekah Karns
- Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Research Foundation, and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | | | | | | | | | - Simon P Hogan
- Division of Allergy and Immunology, Cincinnati Children's Hospital Research Foundation, and the University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Suhas G Kallapur
- Division of Neonatology/Pulmonary Biology, Cincinnati Children's Hospital Research Foundation
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9
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Rodríguez M, Márquez S, de la Rosa JV, Alonso S, Castrillo A, Sánchez Crespo M, Fernández N. Fungal pattern receptors down-regulate the inflammatory response by a cross-inhibitory mechanism independent of interleukin-10 production. Immunology 2016; 150:184-198. [PMID: 27709605 DOI: 10.1111/imm.12678] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 09/23/2016] [Accepted: 09/27/2016] [Indexed: 12/19/2022] Open
Abstract
Cyclic AMP regulatory element binding protein and signal transducer and activator of transcription 3 (STAT3) may control inflammation by several mechanisms, one of the best characterized is the induction of the expression of the anti-inflammatory cytokine interleukin-10 (IL-10). STAT3 also down-regulates the production of pro-inflammatory cytokines induced by immunoreceptor tyrosine-based activation motif (ITAM)-coupled receptors, a mechanism termed cross-inhibition. Because signalling via ITAM-dependent mechanisms is a hallmark of fungal pattern receptors, STAT3 activation might be involved in the cross-inhibition associated with invasive fungal infections. The fungal surrogate zymosan produced the phosphorylation of Y705-STAT3 and the expression of Ifnb1 and Socs3, but did not induce the interferon (IFN)-signature cytokines Cxcl9 and Cxcl10 in bone marrow-derived dendritic cells. Unlike lipopolysaccharide (LPS), zymosan induced IL-10 and phosphorylated Y705-STAT3 to a similar extent in Irf3 and Ifnar1 knockout and wild-type mice. Human dendritic cells showed similar results, although the induction of IFNB1 was less prominent. These results indicate that LPS and zymosan activate STAT3 through different routes. Whereas type I IFN is the main effector of LPS effect, the mechanism involved in Y705-STAT3 phosphorylation by zymosan is more complex, cannot be associated with type I IFN, IL-6 or granulocyte-macrophage colony-stimulating factor, and seems dependent on several factors given that it was partially inhibited by the platelet-activating factor antagonist WEB2086 and high concentrations of COX inhibitors, p38 mitogen-activate protein kinase inhibitors, and blockade of tumour necrosis factor-α function. Altogether, these results indicate that fungal pattern receptors share with other ITAM-coupled receptors the capacity to produce cross-inhibition through a mechanism involving STAT3 and induction of SOCS3 and IL-10, but that cannot be explained through type I IFN signalling.
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Affiliation(s)
- Mario Rodríguez
- Departamento de Bioquímica y Biología Molecular, y Fisiología, Facultad de Medicina, Universidad de Valladolid, Valladolid, Spain
| | - Saioa Márquez
- Departamento de Bioquímica y Biología Molecular, y Fisiología, Facultad de Medicina, Universidad de Valladolid, Valladolid, Spain
| | - Juan Vladimir de la Rosa
- Instituto de Investigaciones Biomédicas Alberto Sols, CSIC-Universidad Autónoma de Madrid, Madrid, Spain.,Unidad Asociada de Biomedicina CSIC-Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS) de la ULPGC, Las Palmas de Gran Canaria, Spain
| | - Sara Alonso
- Instituto de Biología y Genética Molecular, CSIC-Universidad de Valladolid, Valladolid, Spain
| | - Antonio Castrillo
- Instituto de Investigaciones Biomédicas Alberto Sols, CSIC-Universidad Autónoma de Madrid, Madrid, Spain.,Unidad Asociada de Biomedicina CSIC-Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Instituto Universitario de Investigaciones Biomédicas y Sanitarias (IUIBS) de la ULPGC, Las Palmas de Gran Canaria, Spain
| | - Mariano Sánchez Crespo
- Instituto de Biología y Genética Molecular, CSIC-Universidad de Valladolid, Valladolid, Spain
| | - Nieves Fernández
- Departamento de Bioquímica y Biología Molecular, y Fisiología, Facultad de Medicina, Universidad de Valladolid, Valladolid, Spain.,Instituto de Biología y Genética Molecular, CSIC-Universidad de Valladolid, Valladolid, Spain
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10
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Opposing regulation of the late phase TNF response by mTORC1-IL-10 signaling and hypoxia in human macrophages. Sci Rep 2016; 6:31959. [PMID: 27558590 PMCID: PMC4997257 DOI: 10.1038/srep31959] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 08/01/2016] [Indexed: 12/17/2022] Open
Abstract
Tumor necrosis factor (TNF) is best known for inducing a rapid but transient NF-κB-mediated inflammatory response. We investigated later phases of TNF signaling, after the initial transient induction of inflammatory genes has subsided, in primary human macrophages. TNF signaling induced expression of late response genes, including inhibitors of NF-κB and TLR signaling, with delayed and sustained kinetics 6–24 hr after TNF stimulation. A subset of late phase genes was expressed in rheumatoid arthritis synovial macrophages, confirming their expression under chronic inflammatory conditions in vivo. Expression of a subset of late phase genes was mediated by autocrine IL-10, which activated STAT3 with delayed kinetics. Hypoxia, which occurs at sites of infection or inflammation where TNF is expressed, suppressed this IL-10-STAT3 autocrine loop and expression of late phase genes. TNF-induced expression of IL-10 and downstream genes was also dependent on signaling by mTORC1, which senses the metabolic state of cells and is modulated by hypoxia. These results reveal an mTORC1-dependent IL-10-mediated late phase response to TNF by primary human macrophages, and identify suppression of IL-10 responses as a new mechanism by which hypoxia can promote inflammation. Thus, hypoxic and metabolic pathways may modulate TNF responses during chronic inflammation.
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11
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Barbour TD, Ling GS, Ruseva MM, Fossati-Jimack L, Cook HT, Botto M, Pickering MC. Complement receptor 3 mediates renal protection in experimental C3 glomerulopathy. Kidney Int 2016; 89:823-32. [PMID: 26924054 PMCID: PMC4869622 DOI: 10.1016/j.kint.2015.11.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 11/16/2015] [Accepted: 11/19/2015] [Indexed: 12/14/2022]
Abstract
C3 glomerulopathy is a complement-mediated renal disease that is frequently associated with abnormalities in regulation of the complement alternative pathway. Mice with deficiency of factor H (Cfh–/–), a negative alternative pathway regulator, are an established experimental model of C3 glomerulopathy in which complement C3 fragments including iC3b accumulate along the glomerular basement membrane. Here we show that deficiency of complement receptor 3 (CR3), the main receptor for iC3b, enhances the severity of spontaneous renal disease in Cfh–/– mice. This effect was found to be dependent on CR3 expression on bone marrow–derived cells. CR3 also mediated renal protection outside the setting of factor H deficiency, as shown by the development of enhanced renal injury in CR3-deficient mice during accelerated nephrotoxic nephritis. The iC3b–CR3 interaction downregulated the proinflammatory cytokine response of both murine and human macrophages to lipopolysaccharide stimulation in vitro, suggesting that the protective effect of CR3 on glomerular injury was mediated via modulation of macrophage-derived proinflammatory cytokines. Thus, CR3 has a protective role in glomerulonephritis and suggests that pharmacologic potentiation of the macrophage CR3 interaction with iC3b could be therapeutically beneficial.
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Affiliation(s)
- Thomas D Barbour
- Centre for Complement and Inflammation Research, Imperial College, London, UK
| | - Guang Sheng Ling
- Centre for Complement and Inflammation Research, Imperial College, London, UK
| | - Marieta M Ruseva
- Centre for Complement and Inflammation Research, Imperial College, London, UK
| | - Liliane Fossati-Jimack
- Centre for Complement and Inflammation Research, Imperial College, London, UK; Centre for Experimental Medicine and Rheumatology, Queen Mary University of London, London, UK
| | - H Terence Cook
- Centre for Complement and Inflammation Research, Imperial College, London, UK
| | - Marina Botto
- Centre for Complement and Inflammation Research, Imperial College, London, UK
| | - Matthew C Pickering
- Centre for Complement and Inflammation Research, Imperial College, London, UK.
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12
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Takatsuki M, Soyama A, Hidaka M, Kinoshita A, Adachi T, Kitasato A, Kuroki T, Eguchi S. Prospective study of the safety and efficacy of intermittent inflow occlusion (Pringle maneuver) in living donor left hepatectomy. Hepatol Res 2015; 45:856-62. [PMID: 25220784 DOI: 10.1111/hepr.12425] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 08/28/2014] [Accepted: 09/07/2014] [Indexed: 01/16/2023]
Abstract
AIM The impact of intermittent inflow occlusion (Pringle maneuver) in living donor hepatectomy on the outcome of both the donor and the recipient is unknown. The aim of this study is to elucidate the safety and efficacy of Pringle maneuver in living donor hepatectomy. METHODS Twenty consecutive cases of living donors who underwent left hepatectomy were prospectively divided into two groups, with (Group A, n = 10) or without (Group B, n = 10) the Pringle maneuver during hepatectomy. Intraoperative blood loss, postoperative liver functions in the donors and recipient outcome were reviewed. RESULTS Median blood loss was significantly less in group A than in group B. Median alanine aminotransferase was significantly higher on postoperative day 1 in group A than in group B, but the difference was not significant at 7 days after surgery. Eight of 10 recipients in each group survived with good graft function with a median follow-up period of 20 months in group A and 19 months in group B. CONCLUSION The Pringle maneuver was safely applied in living donor hepatectomy, but the only benefit was the reduction of blood loss during the donor surgery, and no positive impact on the recipient outcome.
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Affiliation(s)
- Mitsuhisa Takatsuki
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Akihiko Soyama
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Masaaki Hidaka
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Ayaka Kinoshita
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tomohiko Adachi
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Amane Kitasato
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Tamotsu Kuroki
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Susumu Eguchi
- Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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13
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Maggadottir SM, Li J, Glessner JT, Li YR, Wei Z, Chang X, Mentch FD, Thomas KA, Kim CE, Zhao Y, Hou C, Wang F, Jørgensen SF, Perez EE, Sullivan KE, Orange JS, Karlsen TH, Chapel H, Cunningham-Rundles C, Hakonarson H. Rare variants at 16p11.2 are associated with common variable immunodeficiency. J Allergy Clin Immunol 2015; 135:1569-77. [PMID: 25678086 PMCID: PMC4461447 DOI: 10.1016/j.jaci.2014.12.1939] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 12/24/2014] [Accepted: 12/31/2014] [Indexed: 12/27/2022]
Abstract
BACKGROUND Common variable immunodeficiency (CVID) is characterized clinically by inadequate quantity and quality of serum immunoglobulins with increased susceptibility to infections, resulting in significant morbidity and mortality. Only a few genes have been uncovered, and the genetic background of CVID remains elusive to date for the majority of patients. OBJECTIVE We sought to seek novel associations of genes and genetic variants with CVID. METHODS We performed association analyses in a discovery cohort of 164 patients with CVID and 19,542 healthy control subjects genotyped on the Immuno BeadChip from Illumina platform; replication of findings was examined in an independent cohort of 135 patients with CVID and 2,066 healthy control subjects, followed by meta-analysis. RESULTS We identified 11 single nucleotide polymorphisms (SNPs) at the 16p11.2 locus associated with CVID at a genome-wide significant level in the discovery cohort. The most significant SNP, rs929867 (P = 6.21 × 10(-9)), is in the gene fused-in-sarcoma (FUS), with 4 other SNPs mapping to integrin CD11b (ITGAM). Results were confirmed in our replication cohort. Conditional association analysis suggests a single association signal at the 16p11.2 locus. A strong trend of association was also seen for 38 SNPs (P < 5 × 10(-5)) in the MHC region, supporting that this is a genuine CVID locus. Interestingly, we found that 80% of patients with the rare ITGAM variants have reduced switched memory B-cell counts. CONCLUSION We report a novel association of CVID with rare variants at the FUS/ITGAM (CD11b) locus on 16p11.2. The association signal is enriched for promoter/enhancer markers in the ITGAM gene. ITGAM encodes the integrin CD11b, a part of complement receptor 3, a novel candidate gene implicated here for the first time in the pathogenesis of CVID.
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Affiliation(s)
- S Melkorka Maggadottir
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, Pa; Center for Applied Genomics, Abramson Research Center, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Jin Li
- Center for Applied Genomics, Abramson Research Center, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Joseph T Glessner
- Center for Applied Genomics, Abramson Research Center, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Yun Rose Li
- Center for Applied Genomics, Abramson Research Center, Children's Hospital of Philadelphia, Philadelphia, Pa; Medical Scientist Training Program, Perelman School of Medicine Philadelphia, University of Pennsylvania, Philadelphia, Pa
| | - Zhi Wei
- Department of Computer Science, New Jersey Institute of Technology, Newark, NJ
| | - Xiao Chang
- Center for Applied Genomics, Abramson Research Center, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Frank D Mentch
- Center for Applied Genomics, Abramson Research Center, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Kelly A Thomas
- Center for Applied Genomics, Abramson Research Center, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Cecilia E Kim
- Center for Applied Genomics, Abramson Research Center, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Yan Zhao
- Center for Applied Genomics, Abramson Research Center, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Cuiping Hou
- Center for Applied Genomics, Abramson Research Center, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Fengxiang Wang
- Center for Applied Genomics, Abramson Research Center, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Silje F Jørgensen
- K.G. Jebsen Inflammation Research Centre, Research Institute of Internal Medicine, Division of Cancer Medicine, Surgery and Transplantation, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Elena E Perez
- Division of Allergy, Immunology and Rheumatology, Department of Pediatrics, University of South Florida, St Petersburg, Fla
| | - Kathleen E Sullivan
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Jordan S Orange
- Section of Immunology, Allergy and Rheumatology, Texas Children's Hospital, Houston, Tex
| | - Tom H Karlsen
- K.G. Jebsen Inflammation Research Centre, Research Institute of Internal Medicine, Division of Cancer Medicine, Surgery and Transplantation, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Helen Chapel
- Nuffield Department of Medicine, University of Oxford and Oxford Radcliffe Hospital, Oxford, United Kingdom
| | | | - Hakon Hakonarson
- Center for Applied Genomics, Abramson Research Center, Children's Hospital of Philadelphia, Philadelphia, Pa; Division of Human Genetics, Children's Hospital of Philadelphia, Philadelphia, Pa; Department of Pediatrics, Perelman School of Medicine Philadelphia, University of Pennsylvania, Philadelphia, Pa.
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14
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Rivera A. Protective immune responses to fungal infections. Parasite Immunol 2014; 36:453-62. [DOI: 10.1111/pim.12098] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Accepted: 01/10/2014] [Indexed: 02/06/2023]
Affiliation(s)
- A. Rivera
- Department of Pediatrics and Center for Immunity and Inflammation; Rutgers; Rutgers Biomedical and Health Sciences; New Jersey Medical School; Newark NJ USA
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15
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Donlin LT, Jayatilleke A, Giannopoulou EG, Kalliolias GD, Ivashkiv LB. Modulation of TNF-induced macrophage polarization by synovial fibroblasts. THE JOURNAL OF IMMUNOLOGY 2014; 193:2373-83. [PMID: 25057003 DOI: 10.4049/jimmunol.1400486] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Mesenchymal stromal cells have emerged as powerful modulators of the immune system. In this study, we explored how the human macrophage response to TNF is regulated by human synovial fibroblasts, the representative stromal cell type in the synovial lining of joints that become activated during inflammatory arthritis. We found that synovial fibroblasts strongly suppressed TNF-mediated induction of an IFN-β autocrine loop and downstream expression of IFN-stimulated genes (ISGs), including chemokines CXCL9 and CXCL10 that are characteristic of classical macrophage activation. TNF induced the production of soluble synovial fibroblast factors that suppressed the macrophage production of IFN-β, and cooperated with TNF to limit the responsiveness of macrophages to IFN-β by suppressing activation of Jak-STAT signaling. Genome-wide transcriptome analysis showed that cocultured synovial fibroblasts modulate the expression of approximately one third of TNF-regulated genes in macrophages, including genes in pathways important for macrophage survival and polarization toward an alternatively activated phenotype. Pathway analysis revealed that gene expression programs regulated by synovial fibroblasts in our coculture system were also regulated in rheumatoid arthritis synovial macrophages, suggesting that these fibroblast-mediated changes may contribute to rheumatoid arthritis pathogenesis. This work furthers our understanding of the interplay between innate immune and stromal cells during an inflammatory response, one that is particularly relevant to inflammatory arthritis. Our findings also identify modulation of macrophage phenotype as a new function for synovial fibroblasts that may prove to be a contributing factor in arthritis pathogenesis.
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Affiliation(s)
- Laura T Donlin
- Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021;
| | - Arundathi Jayatilleke
- Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021
| | - Eugenia G Giannopoulou
- Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021; Biological Sciences Department, New York City College of Technology, City University of New York, New York, NY 11201
| | - George D Kalliolias
- Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021; Department of Medicine, Weill Cornell Medical College, New York, NY 10021; and
| | - Lionel B Ivashkiv
- Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY 10021; Department of Medicine, Weill Cornell Medical College, New York, NY 10021; and Weill Cornell Graduate School of Medical Sciences, New York, NY 10021
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16
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Sehgal K, Guo X, Koduru S, Shah A, Lin A, Yan X, Dhodapkar KM. Plasmacytoid dendritic cells, interferon signaling, and FcγR contribute to pathogenesis and therapeutic response in childhood immune thrombocytopenia. Sci Transl Med 2014; 5:193ra89. [PMID: 23843450 DOI: 10.1126/scitranslmed.3006277] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Immune thrombocytopenia (ITP) is an autoimmune disorder of childhood characterized by immune-mediated destruction of platelets. The mechanisms underlying the pathogenesis of ITP and the therapeutic efficacy of intravenous immunoglobulins (IVIG) in this disorder remain unclear. We show that monocytes from patients with ITP have a distinct gene expression profile, with increased expression of type I interferon response (IR) genes. Plasma from ITP patients had increased levels of several cytokines indicative of immune activation, including an increase in interferon-α. ITP patients also had an increase in plasmacytoid dendritic cells (pDCs) compared to healthy donors. Therapy-induced remission of ITP was associated with abrogation of the IR gene signature in monocytes without reduction in the levels of circulating interferon-α itself. IVIG altered the ratio of activating/inhibitory Fcγ receptors (FcγRs) in vivo primarily by reducing FcγRIII (CD16). The engagement of activating FcγRs was required for IVIG-mediated abrogation of monocyte response to exogenous interferon-α in culture. Moreover, plasma from ITP patients led to activation of monocytes and myeloid DCs in culture with an increase in T cell stimulatory capacity; this activation depended on the engagement of activating FcγRs and interferon-α receptor (IFNAR) and was inhibited by antibody-mediated blockade of these pathways. These data point to a central role of type I interferon in the pathogenesis of ITP and suggest targeting pDCs and blockade of IR as potential therapeutic approaches in this disorder. They also provide evidence for the capacity of IVIG to extinguish IR in vivo, which may contribute to its effects in autoimmunity.
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Affiliation(s)
- Kartik Sehgal
- Yale Cancer Center, Yale University, New Haven, CT 06519, USA
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17
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Abstract
Type I interferons (IFNs) activate intracellular antimicrobial programmes and influence the development of innate and adaptive immune responses. Canonical type I IFN signalling activates the Janus kinase (JAK)-signal transducer and activator of transcription (STAT) pathway, leading to transcription of IFN-stimulated genes (ISGs). Host, pathogen and environmental factors regulate the responses of cells to this signalling pathway and thus calibrate host defences while limiting tissue damage and preventing autoimmunity. Here, we summarize the signalling and epigenetic mechanisms that regulate type I IFN-induced STAT activation and ISG transcription and translation. These regulatory mechanisms determine the biological outcomes of type I IFN responses and whether pathogens are cleared effectively or chronic infection or autoimmune disease ensues.
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Affiliation(s)
- Lionel B Ivashkiv
- 1] Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York 10021, USA. [2] Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, New York, New York 10065, USA. [3] Department of Medicine, Weill Cornell Medical College, New York, New York 10065,USA
| | - Laura T Donlin
- Arthritis and Tissue Degeneration Program and the David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, New York 10021, USA
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18
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Acquired resistance of Listeria monocytogenes in and escaped from liver parenchymal cells to gentamicin is caused by being coated with their plasma membrane. Microbes Infect 2014; 16:237-43. [DOI: 10.1016/j.micinf.2013.11.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 10/22/2013] [Accepted: 11/09/2013] [Indexed: 11/24/2022]
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19
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Rothman J, Paterson Y. Live-attenuatedListeria-based immunotherapy. Expert Rev Vaccines 2014; 12:493-504. [DOI: 10.1586/erv.13.34] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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20
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Loss of DAP12 and FcRγ drives exaggerated IL-12 production and CD8(+) T cell response by CCR2(+) Mo-DCs. PLoS One 2013; 8:e76145. [PMID: 24155889 PMCID: PMC3796521 DOI: 10.1371/journal.pone.0076145] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 08/19/2013] [Indexed: 11/24/2022] Open
Abstract
Dap12 and FcRγ, the two transmembrane ITAM-containing signaling adaptors expressed in dendritic cells (DC), are implicated in the regulation of DC function. Several activating and adhesion receptors including integrins require these chains for their function in triggering downstream signaling and effector pathways, however the exact role(s) for Dap12 and FcRγ remains elusive as their loss can lead to both attenuating and enhancing effects. Here, we report that mice congenitally lacking both Dap12 and FcRγ chains (DF) show a massively enhanced effector CD8+ T cell response to protein antigen immunization or West Nile Virus (WNV) infection. Thus, immunization of DF mice with MHCI-restricted OVA peptide leads to accumulation of IL-12-producing monocyte-derived dendritic cells (Mo-DC) in draining lymph nodes, followed by vastly enhanced generation of antigen-specific IFNγ-producing CD8+ T cells. Moreover, DF mice show increased viral clearance in the WNV infection model. Depletion of CCR2+ monocytes/macrophages in vivo by administration anti-CCR2 antibodies or clodronate liposomes completely prevents the exaggerated CD8+ T cell response in DF mice. Mechanistically, we show that the loss of Dap12 and FcRγ-mediated signals in Mo-DC leads to a disruption of GM-CSF receptor-induced STAT5 activation resulting in upregulation of expression of IRF8, a transcription factor. Consequently, Dap12- and FcRγ-deficiency exacerbates GM-CSF-driven monocyte differentiation and production of inflammatory Mo-DC. Our data suggest a novel cross-talk between DC-ITAM and GM-CSF signaling pathways, which controls Mo-DC differentiation, IL-12 production, and CD8+ T cell responses.
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21
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Wang Q, Li H, Xie H, Fu M, Guo B, Ding Y, Li W, Yu H. 25-Hydroxyvitamin D3 attenuates experimental periodontitis through downregulation of TLR4 and JAK1/STAT3 signaling in diabetic mice. J Steroid Biochem Mol Biol 2013; 135:43-50. [PMID: 23333931 DOI: 10.1016/j.jsbmb.2013.01.008] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Revised: 01/07/2013] [Accepted: 01/09/2013] [Indexed: 02/05/2023]
Abstract
Vitamin D has been known to be closely associated with diabetes and periodontitis while the underlying mechanism has yet to be clarified. The present study aimed to discover the effect of 25-hydroxyvitamin D3 (25-OHD3) on glycemic control and periodontal health in mice with periodontitis superimposed on experimental diabetes (known as diabetic periodontitis). We showed that 25-OHD3 intraperitoneal injection attenuated diabetic periodontitis by reducing serum fasting blood glucose, glycosylated hemoglobin and TNF-α levels, which led to decreased alveolar bone loss. Immunohistochemical staining and western blot analysis of gingival epithelia revealed that vitamin D receptor (VDR) expression was enhanced upon 25-OHD3 treatment, while toll-like receptor 4 (TLR4) expression was reduced. The expressions of Janus family kinase (JAK) 1 and signal transducer and activator of transcription (STAT) 3 as well as their phosphorylation were inhibited in gingival epithelia of diabetic periodontitis mice, whereas the expression and phosphorylation of STAT1 remained unchanged. These results suggest that 25-OHD3 could improve diabetic periodontitis through downregulation of TLR4 and JAK1/STAT3 signaling in the gingival epithelium. Our study extends the previous findings on the regulation of diabetes with periodontitis, and may also provide a potential therapy for the patients with this disease.
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Affiliation(s)
- Qi Wang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, 14 3rd Section S Renmin Road, Chengdu 610041, PR China
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22
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Phagocytosis is the main CR3-mediated function affected by the lupus-associated variant of CD11b in human myeloid cells. PLoS One 2013; 8:e57082. [PMID: 23451151 PMCID: PMC3579793 DOI: 10.1371/journal.pone.0057082] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 01/17/2013] [Indexed: 11/19/2022] Open
Abstract
The CD11b/CD18 integrin (complement receptor 3, CR3) is a surface receptor on monocytes, neutrophils, macrophages and dendritic cells that plays a crucial role in several immunological processes including leukocyte extravasation and phagocytosis. The minor allele of a non-synonymous CR3 polymorphism (rs1143679, conversation of arginine to histidine at position 77: R77H) represents one of the strongest genetic risk factor in human systemic lupus erythematosus, with heterozygosity (77R/H) being the most common disease associated genotype. Homozygosity for the 77H allele has been reported to reduce adhesion and phagocytosis in human monocytes and monocyte-derived macrophages, respectively, without affecting surface expression of CD11b. Herein we comprehensively assessed the influence of R77H on different CR3-mediated activities in monocytes, neutrophils, macrophages and dendritic cells. R77H did not alter surface expression of CD11b including its active form in any of these cell types. Using two different iC3b-coated targets we found that the uptake by heterozygous 77R/H macrophages, monocytes and neutrophils was significantly reduced compared to 77R/R cells. Allele-specific transduced immortalized macrophage cell lines demonstrated that the minor allele, 77H, was responsible for the impaired phagocytosis. R77H did not affect neutrophil adhesion, neutrophil transmigration in vivo or Toll-like receptor 7/8-mediated cytokine release by monocytes or dendritic cells with or without CR3 pre-engagement by iC3b-coated targets. Our findings demonstrate that the reduction in CR3-mediated phagocytosis associated with the 77H CD11b variant is not macrophage-restricted but demonstrable in other CR3-expressing professional phagocytic cells. The association between 77H and susceptibility to systemic lupus erythematosus most likely relates to impaired waste disposal, a key component of lupus pathogenesis.
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23
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Jung YK, Park HR, Lee EJ, Jeong DH, Kim GW, Choi JY, Han SW. DICAM Inhibits Activation of Macrophage by Lipopolysaccharide. JOURNAL OF RHEUMATIC DISEASES 2012. [DOI: 10.4078/jrd.2012.19.4.196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Youn-Kwan Jung
- Laboratory for Arthritis and Bone Biology, Fatima Research Institute, Daegu Fatima Hospital, Daegu, Korea
| | - Hye-Ri Park
- Laboratory for Arthritis and Bone Biology, Fatima Research Institute, Daegu Fatima Hospital, Daegu, Korea
| | - Eun-Ju Lee
- Laboratory for Arthritis and Bone Biology, Fatima Research Institute, Daegu Fatima Hospital, Daegu, Korea
| | - Dong-Hyoung Jeong
- Division of Rheumatology, Department of Internal Medicine, Daegu Fatima Hospital, Daegu, Korea
| | - Gun-Woo Kim
- Laboratory for Arthritis and Bone Biology, Fatima Research Institute, Daegu Fatima Hospital, Daegu, Korea
- Division of Rheumatology, Department of Internal Medicine, Daegu Fatima Hospital, Daegu, Korea
| | - Je-Yong Choi
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Seung-woo Han
- Laboratory for Arthritis and Bone Biology, Fatima Research Institute, Daegu Fatima Hospital, Daegu, Korea
- Division of Rheumatology, Department of Internal Medicine, Daegu Fatima Hospital, Daegu, Korea
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