1
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Caielli S, Balasubramanian P, Rodriguez-Alcazar J, Balaji U, Wan Z, Baisch J, Smitherman C, Walters L, Sparagana P, Nehar-Belaid D, Marches R, Nassi L, Stewart K, Fuller J, Banchereau JF, Gu J, Wright T, Pascual V. An unconventional mechanism of IL-1β secretion that requires Type I IFN in lupus monocytes. bioRxiv 2023:2023.08.03.551696. [PMID: 37577613 PMCID: PMC10418156 DOI: 10.1101/2023.08.03.551696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Systemic Lupus Erythematosus (SLE) is characterized by autoreactive B cell activation, upregulation of Type I Interferon (IFN) and widespread inflammation. Mitochondrial nucleic acids (NAs) are increasingly recognized as triggers of IFN 1 . Thus, defective removal of mitochondria from mature red blood cells (Mito + RBCs), a feature of SLE, contributes to IFN production by myeloid cells 2 . Here we identify blood monocytes (Mo) that have internalized RBCs and co-express IFN-stimulated genes (ISGs) and interleukin-1β (IL-1β) in SLE patients with active disease. We show that ISG expression requires the interaction between Mito + RBC-derived mitochondrial DNA (mtDNA) and cGAS, while IL-1β production entails Mito + RBC-derived mitochondrial RNA (mtRNA) triggering of RIG-I-like receptors (RLRs). This leads to the cytosolic release of Mo-derived mtDNA that activates the NLRP3 inflammasome. Importantly, IL-1β release depends on the IFN-inducible myxovirus resistant protein 1 (MxA), which enables the translocation of this cytokine into a trans-Golgi network (TGN)-mediated unconventional secretory pathway. Our study highlights a novel and synergistic pathway involving IFN and the NLRP3 inflammasome in SLE.
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2
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Abstract
Autoreactive B cells and interferons are central players in systemic lupus erythematosus (SLE) pathogenesis. The partial success of drugs targeting these pathways, however, supports heterogeneity in upstream mechanisms contributing to disease pathogenesis. In this review, we focus on recent insights from genetic and immune monitoring studies of patients that are refining our understanding of these basic mechanisms. Among them, novel mutations in genes affecting intrinsic B cell activation or clearance of interferogenic nucleic acids have been described. Mitochondria have emerged as relevant inducers and/or amplifiers of SLE pathogenesis through a variety of mechanisms that include disruption of organelle integrity or compartmentalization, defective metabolism, and failure of quality control measures. These result in extra- or intracellular release of interferogenic nucleic acids as well as in innate and/or adaptive immune cell activation. A variety of classic and novel SLE autoantibody specificities have been found to recapitulate genetic alterations associated with monogenic lupus or to trigger interferogenic amplification loops. Finally, atypical B cells and novel extrafollicular T helper cell subsets have been proposed to contribute to the generation of SLE autoantibodies. Overall, these novel insights provide opportunities to deepen the immunophenotypic surveillance of patients and open the door to patient stratification and personalized, rational approaches to therapy. Expected final online publication date for the Annual Review of Immunology, Volume 41 is April 2023. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Simone Caielli
- Drukier Institute for Children's Health and Department of Pediatrics, Weill Cornell Medical Center, New York, NY, USA; , ,
| | - Zurong Wan
- Drukier Institute for Children's Health and Department of Pediatrics, Weill Cornell Medical Center, New York, NY, USA; , ,
| | - Virginia Pascual
- Drukier Institute for Children's Health and Department of Pediatrics, Weill Cornell Medical Center, New York, NY, USA; , ,
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3
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Gofshteyn J, Mansfield L, Spitznagle J, Balasubramanian P, Cardenas J, Miller T, Gu J, Wang X, Punaro M, Fuller J, Nassi L, Stewart K, Ohouo M, Stagnar C, Baisch J, Walters L, Wang Y, Yan H, Rinchai D, Chaussabel D, Caielli S, Hong S, Onel K, Wright T, Pascual V. Juvenile dermatomyositis disease activity is associated with the expansion of blood B and T-cell memory subsets lacking follicular markers. Arthritis Rheumatol 2023. [PMID: 36648920 DOI: 10.1002/art.42446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 12/23/2022] [Accepted: 01/12/2023] [Indexed: 01/18/2023]
Abstract
OBJECTIVES To identify markers of Juvenile Dermatomyositis (JDM) disease activity (DA), which are needed to improve disease management. METHODS 123 JDM patients and 53 healthy controls (HC) were included in the study. Laboratory tests (aldolase, CK, LDH, AST) and clinical measures of DA, including the Manual Muscle Testing (MMT-8), Childhood Myositis Assessment Scale (CMAS), and Disease Activity Scores (DAS), were recorded when available. Surface phenotype of peripheral blood mononuclear cells (PBMCs) was assessed using flow cytometry. Whole blood transcriptional profiles were studied using either RNA-sequencing or microarrays. Differential gene expression was analyzed using DESeq2, pathway, and gene ontology. RESULTS Conventional memory (CD27+ IgD- ) B-cells expressing low CXCR5 levels (CXCR5lo/- CM B-cells) were significantly increased in frequency and absolute numbers in two independent cohorts of JDM patients compared with HC. The frequency of CD4+ T-helper 2 memory (Th2) cells (CD45RA- CXCR5- CCR6- CXCR3- ) was also increased, especially in patients <1 year from diagnosis. CXCR5lo/- CM B-cell frequency correlated with serum aldolase levels and with a blood interferon (IFN)-stimulated gene (ISG) transcriptional signature, while both the frequency and absolute cell numbers of CXCR5lo/- CM B-cells correlated with clinical and laboratory measures of muscle DA (MMT-8, CMAS, aldolase, and LDH). CONCLUSIONS Our findings suggest that conventional memory B-cells lacking the CXCR5 follicular marker and CXCR5- Th2 cells represent potential biomarkers of JDM DA and may contribute to JDM pathogenesis.
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Affiliation(s)
| | - Leanne Mansfield
- Weill Cornell Medical College, Department of Pediatrics, NY, NY, 10021.,Hospital for Special Surgery, Department of Pediatrics, NY, NY, 10021
| | - Jacob Spitznagle
- University of Washington School of Medicine, Department of Pediatrics, Seattle, WA, 98195
| | - Preetha Balasubramanian
- Weill Cornell Medical College, Gale and Ira Drukier Institute for Children's Health, NY, NY, 10021
| | | | - Thomas Miller
- Weill Cornell Medical College, Gale and Ira Drukier Institute for Children's Health, NY, NY, 10021
| | - Jinghua Gu
- Weill Cornell Medical College, Gale and Ira Drukier Institute for Children's Health, NY, NY, 10021
| | - Xuan Wang
- Baylor Scott and White Health, Dallas, TX, 75246
| | - Marilynn Punaro
- University of Texas Southwestern and Texas Scottish Rite Hospital Dallas, TX, 75390
| | - Julie Fuller
- University of Texas Southwestern and Texas Scottish Rite Hospital Dallas, TX, 75390
| | - Lorien Nassi
- University of Texas Southwestern and Texas Scottish Rite Hospital Dallas, TX, 75390
| | - Katie Stewart
- University of Texas Southwestern and Texas Scottish Rite Hospital Dallas, TX, 75390
| | - Marina Ohouo
- Weill Cornell Medical College, Gale and Ira Drukier Institute for Children's Health, NY, NY, 10021
| | - Cristy Stagnar
- Clemson University College of Behavioral Social and Health Sciences, Clemson, SC, 29634
| | - Jeanine Baisch
- Weill Cornell Medical College, Gale and Ira Drukier Institute for Children's Health, NY, NY, 10021
| | | | | | - Helena Yan
- Weill Cornell Medical College, Department of Pediatrics, NY, NY, 10021
| | | | | | - Simone Caielli
- Weill Cornell Medical College, Gale and Ira Drukier Institute for Children's Health, NY, NY, 10021
| | - Seunghee Hong
- Yonsei University, Department of Biochemistry, College of Life Science and Biotechnology, Seodaemun-gu, Seoul, South Korea
| | - Karen Onel
- Hospital for Special Surgery, Department of Pediatrics, NY, NY, 10021
| | - Tracey Wright
- University of Texas Southwestern and Texas Scottish Rite Hospital Dallas, TX, 75390
| | - Virginia Pascual
- Weill Cornell Medical College, Gale and Ira Drukier Institute for Children's Health, NY, NY, 10021
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4
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Caielli S, Cardenas J, de Jesus AA, Baisch J, Walters L, Blanck JP, Balasubramanian P, Stagnar C, Ohouo M, Hong S, Nassi L, Stewart K, Fuller J, Gu J, Banchereau JF, Wright T, Goldbach-Mansky R, Pascual V. Erythroid mitochondrial retention triggers myeloid-dependent type I interferon in human SLE. Cell 2021; 184:4464-4479.e19. [PMID: 34384544 PMCID: PMC8380737 DOI: 10.1016/j.cell.2021.07.021] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 04/05/2021] [Accepted: 07/19/2021] [Indexed: 02/08/2023]
Abstract
Emerging evidence supports that mitochondrial dysfunction contributes to systemic lupus erythematosus (SLE) pathogenesis. Here we show that programmed mitochondrial removal, a hallmark of mammalian erythropoiesis, is defective in SLE. Specifically, we demonstrate that during human erythroid cell maturation, a hypoxia-inducible factor (HIF)-mediated metabolic switch is responsible for the activation of the ubiquitin-proteasome system (UPS), which precedes and is necessary for the autophagic removal of mitochondria. A defect in this pathway leads to accumulation of red blood cells (RBCs) carrying mitochondria (Mito+ RBCs) in SLE patients and in correlation with disease activity. Antibody-mediated internalization of Mito+ RBCs induces type I interferon (IFN) production through activation of cGAS in macrophages. Accordingly, SLE patients carrying both Mito+ RBCs and opsonizing antibodies display the highest levels of blood IFN-stimulated gene (ISG) signatures, a distinctive feature of SLE.
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Affiliation(s)
- Simone Caielli
- Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA; Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA.
| | | | - Adriana Almeida de Jesus
- Translational Autoinflammatory Diseases Section, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Jeanine Baisch
- Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA; Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA
| | | | | | - Preetha Balasubramanian
- Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA; Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA
| | - Cristy Stagnar
- Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA; Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA
| | - Marina Ohouo
- Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA; Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA
| | - Seunghee Hong
- Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA; Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA
| | - Lorien Nassi
- Texas Scottish Rite Hospital for Children, Dallas, TX, USA; Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Katie Stewart
- Texas Scottish Rite Hospital for Children, Dallas, TX, USA; Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Julie Fuller
- Texas Scottish Rite Hospital for Children, Dallas, TX, USA; Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Jinghua Gu
- Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA; Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA
| | | | - Tracey Wright
- Texas Scottish Rite Hospital for Children, Dallas, TX, USA; Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Raphaela Goldbach-Mansky
- Translational Autoinflammatory Diseases Section, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Virginia Pascual
- Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA; Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA.
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5
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Pelissier Vatter FA, Cioffi M, Hanna SJ, Castarede I, Caielli S, Pascual V, Matei I, Lyden D. Extracellular vesicle- and particle-mediated communication shapes innate and adaptive immune responses. J Exp Med 2021; 218:212439. [PMID: 34180950 PMCID: PMC8241538 DOI: 10.1084/jem.20202579] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/25/2021] [Accepted: 06/02/2021] [Indexed: 02/06/2023] Open
Abstract
Intercellular communication among immune cells is vital for the coordination of proper immune responses. Extracellular vesicles and particles (EVPs) act as messengers in intercellular communication, with important consequences for target cell and organ physiology in both health and disease. Under normal physiological conditions, immune cell-derived EVPs participate in immune responses by regulating innate and adaptive immune responses. EVPs play a major role in antigen presentation and immune activation. On the other hand, immune cell-derived EVPs exert immunosuppressive and regulatory effects. Consequently, EVPs may contribute to pathological conditions, such as autoimmune and inflammatory diseases, graft rejection, and cancer progression and metastasis. Here, we provide an overview of the role of EVPs in immune homeostasis and pathophysiology, with a particular focus on their contribution to innate and adaptive immunity and their potential use for immunotherapies.
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Affiliation(s)
- Fanny A Pelissier Vatter
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY
| | - Michele Cioffi
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY
| | - Samer J Hanna
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY
| | - Ines Castarede
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY.,Swiss Institute for Experimental Cancer Research, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Simone Caielli
- Drukier Institute for Children's Health and Department of Pediatrics, Weill Cornell Medicine, New York, NY
| | - Virginia Pascual
- Drukier Institute for Children's Health and Department of Pediatrics, Weill Cornell Medicine, New York, NY
| | - Irina Matei
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY
| | - David Lyden
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY
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6
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Caielli S, Banchereau J, Pascual V. Dissecting the mechanisms responsible for the generation of regulatory versus pathogenic human CD4+ T cells by TLR9-activated plasmacytoid dendritic cells. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.230.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Understanding the mechanisms underlying how regulatory and pathogenic CD4+ T cells are generated will accelerate therapeutic target identification in autoimmune diseases such as Systemic Lupus Erythematosus (SLE), where this balance is altered. We recently described that in vitro priming of naïve CD4+ T cells with plasmacytoid DCs (pDCs) activated with either CpGA or Oxidized mitochondrial DNA (Ox mtDNA) leads to the generation of Type 1 regulatory T cells (Tr1) or of a novel T helper subset (Th10 cells), respectively. Th10 cells are expanded in the blood of SLE patients and accumulate within the tubuloinsterstitial areas of proliferative nephritis (PLN) lesions. These cells produce IL10 and mitochondrial ROS (mtROS) as the result of reverse electron transport (RET) fueled by the tricarboxylic acid (TCA) cycle intermediate succinate. Functionally, Th10 cells are not suppressive, but they provide B cell help through the synergistic effect of IL10 and succinate. The mechanisms responsible for the acquisition of a regulatory versus a helper phenotype remain elusive. We now show that naïve CD4+ T cells require the activation of the Delta Like Canonical Notch Ligand 4 (Dll4)-Notch pathway in order to acquire a TH10 phenotype. Conversely, the TLR7-IRF7 pathway is necessary for the generation of Tr1 cells. These pathways might be exploited for therapeutic intervention in human autoimmune diseases.
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7
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Caielli S, Veiga DT, Balasubramanian P, Athale S, Domic B, Murat E, Banchereau R, Xu Z, Chandra M, Chung CH, Walters L, Baisch J, Wright T, Punaro M, Nassi L, Stewart K, Fuller J, Ucar D, Ueno H, Zhou J, Banchereau J, Pascual V. A CD4 + T cell population expanded in lupus blood provides B cell help through interleukin-10 and succinate. Nat Med 2018; 25:75-81. [PMID: 30478422 PMCID: PMC6325012 DOI: 10.1038/s41591-018-0254-9] [Citation(s) in RCA: 159] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 10/15/2018] [Indexed: 01/15/2023]
Abstract
Understanding the mechanisms underlying autoantibody development will accelerate therapeutic target identification in autoimmune diseases such as systemic lupus erythematosus (SLE)1. Follicular helper T cells (TFH cells) have long been implicated in SLE pathogenesis. Yet a fraction of autoantibodies in individuals with SLE are unmutated, supporting that autoreactive B cells also differentiate outside germinal centers2. Here, we describe a CXCR5-CXCR3+ programmed death 1 (PD1)hiCD4+ helper T cell population distinct from TFH cells and expanded in both SLE blood and the tubulointerstitial areas of individuals with proliferative lupus nephritis. These cells produce interleukin-10 (IL-10) and accumulate mitochondrial reactive oxygen species as the result of reverse electron transport fueled by succinate. Furthermore, they provide B cell help, independently of IL-21, through IL-10 and succinate. Similar cells are generated in vitro upon priming naive CD4+ T cells with plasmacytoid dendritic cells activated with oxidized mitochondrial DNA, a distinct class of interferogenic toll-like receptor 9 ligand3. Targeting this pathway might blunt the initiation and/or perpetuation of extrafollicular humoral responses in SLE.
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Affiliation(s)
- Simone Caielli
- Baylor Institute for Immunology Research, Dallas, TX, USA.,Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA.,Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA
| | | | - Preetha Balasubramanian
- Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA.,Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA
| | - Shruti Athale
- Baylor Institute for Immunology Research, Dallas, TX, USA
| | - Bojana Domic
- Baylor Institute for Immunology Research, Dallas, TX, USA
| | - Elise Murat
- Baylor Institute for Immunology Research, Dallas, TX, USA.,Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA.,Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA
| | | | - Zhaohui Xu
- Baylor Institute for Immunology Research, Dallas, TX, USA
| | | | - Cheng-Han Chung
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Lynnette Walters
- Baylor Institute for Immunology Research, Dallas, TX, USA.,Texas Scottish Rite Hospital for Children, Dallas, TX, USA
| | - Jeanine Baisch
- Baylor Institute for Immunology Research, Dallas, TX, USA.,Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA.,Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA
| | - Tracey Wright
- Texas Scottish Rite Hospital for Children, Dallas, TX, USA.,Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Marilynn Punaro
- Texas Scottish Rite Hospital for Children, Dallas, TX, USA.,Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Lorien Nassi
- Texas Scottish Rite Hospital for Children, Dallas, TX, USA.,Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Katie Stewart
- Texas Scottish Rite Hospital for Children, Dallas, TX, USA.,Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Julie Fuller
- Texas Scottish Rite Hospital for Children, Dallas, TX, USA.,Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Duygu Ucar
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, USA
| | - Hideki Ueno
- Baylor Institute for Immunology Research, Dallas, TX, USA.,Mount Sinai School of Medicine, New York, NY, USA
| | - Joseph Zhou
- Pathologists Bio-Medical Laboratories, Lewisville, TX, USA
| | | | - Virginia Pascual
- Baylor Institute for Immunology Research, Dallas, TX, USA. .,Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA. .,Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA. .,Texas Scottish Rite Hospital for Children, Dallas, TX, USA.
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8
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Caielli S, Athale S, Domic B, Murat E, Chandra M, Banchereau R, Baisch J, Phelps K, Clayton S, Gong M, Wright T, Punaro M, Palucka K, Guiducci C, Banchereau J, Pascual V. Oxidized mitochondrial nucleoids released by neutrophils drive type I interferon production in human lupus. J Biophys Biochem Cytol 2016. [DOI: 10.1083/jcb.2132oia85] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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9
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Caielli S, Athale S, Domic B, Murat E, Chandra M, Banchereau R, Baisch J, Phelps K, Clayton S, Gong M, Wright T, Punaro M, Palucka K, Guiducci C, Banchereau J, Pascual V. Oxidized mitochondrial nucleoids released by neutrophils drive type I interferon production in human lupus. J Exp Med 2016; 213:697-713. [PMID: 27091841 PMCID: PMC4854735 DOI: 10.1084/jem.20151876] [Citation(s) in RCA: 321] [Impact Index Per Article: 40.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 03/11/2016] [Indexed: 01/02/2023] Open
Abstract
Autoantibodies against nucleic acids and excessive type I interferon (IFN) are hallmarks of human systemic lupus erythematosus (SLE). We previously reported that SLE neutrophils exposed to TLR7 agonist autoantibodies release interferogenic DNA, which we now demonstrate to be of mitochondrial origin. We further show that healthy human neutrophils do not complete mitophagy upon induction of mitochondrial damage. Rather, they extrude mitochondrial components, including DNA (mtDNA), devoid of oxidized (Ox) residues. When mtDNA undergoes oxidation, it is directly routed to lysosomes for degradation. This rerouting requires dissociation from the transcription factor A mitochondria (TFAM), a dual high-mobility group (HMG) protein involved in maintenance and compaction of the mitochondrial genome into nucleoids. Exposure of SLE neutrophils, or healthy IFN-primed neutrophils, to antiribonucleotide protein autoantibodies blocks TFAM phosphorylation, a necessary step for nucleoid dissociation. Consequently, Ox nucleoids accumulate within mitochondria and are eventually extruded as potent interferogenic complexes. In support of the in vivo relevance of this phenomenon, mitochondrial retention of Ox nucleoids is a feature of SLE blood neutrophils, and autoantibodies against Ox mtDNA are present in a fraction of patients. This pathway represents a novel therapeutic target in human SLE.
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Affiliation(s)
- Simone Caielli
- Baylor Institute for Immunology Research, Dallas, TX 75204
| | - Shruti Athale
- Baylor Institute for Immunology Research, Dallas, TX 75204
| | - Bojana Domic
- Baylor Institute for Immunology Research, Dallas, TX 75204
| | - Elise Murat
- Baylor Institute for Immunology Research, Dallas, TX 75204
| | | | | | - Jeanine Baisch
- Baylor Institute for Immunology Research, Dallas, TX 75204
| | - Kate Phelps
- Live Cell Imaging Core, University of Texas Southwestern Medical Center, Dallas, TX 75263
| | - Sandra Clayton
- Baylor Institute for Immunology Research, Dallas, TX 75204
| | - Mei Gong
- Dynavax Technologies Corporation, Berkeley, CA 94710
| | - Tracey Wright
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX 75263 Texas Scottish Rite Hospital for Children, Dallas, TX 75219
| | - Marilynn Punaro
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX 75263 Texas Scottish Rite Hospital for Children, Dallas, TX 75219
| | - Karolina Palucka
- Baylor Institute for Immunology Research, Dallas, TX 75204 The Jackson Laboratory Institute for Genomic Medicine, Farmington, CT 06030
| | | | - Jacques Banchereau
- The Jackson Laboratory Institute for Genomic Medicine, Farmington, CT 06030
| | - Virginia Pascual
- Baylor Institute for Immunology Research, Dallas, TX 75204 Texas Scottish Rite Hospital for Children, Dallas, TX 75219
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10
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Caielli S, Banchereau J, Pascual V. Neutrophils come of age in chronic inflammation. Curr Opin Immunol 2012; 24:671-7. [PMID: 23127555 PMCID: PMC3684162 DOI: 10.1016/j.coi.2012.09.008] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 09/28/2012] [Accepted: 09/30/2012] [Indexed: 12/21/2022]
Abstract
Neutrophils have long been known to participate in acute inflammation, but a role in chronic inflammatory and autoimmune diseases is now emerging. These cells are key players in the recognition and elimination of pathogens, but they also sense self components, including nucleic acids and products of sterile tissue damage. While this normally contributes to tissue repair, it can also lead to the release of highly immunogenic products that can trigger and/or amplify autoimmune pathogenic loops. Understanding the mechanisms that underlie neutrophil activation, migration, survival and their various forms of death in health and disease might provide us with new approaches to treat chronic inflammatory conditions.
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Affiliation(s)
- Simone Caielli
- Baylor Institute for Immunology Research, Dallas, TX 75204, USA
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11
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Garcia-Romo GS, Caielli S, Vega B, Connolly J, Allantaz F, Xu Z, Punaro M, Baisch J, Guiducci C, Coffman RL, Barrat FJ, Banchereau J, Pascual V. Netting neutrophils are major inducers of type I IFN production in pediatric systemic lupus erythematosus. Sci Transl Med 2011; 3:73ra20. [PMID: 21389264 DOI: 10.1126/scitranslmed.3001201] [Citation(s) in RCA: 907] [Impact Index Per Article: 69.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Systemic lupus erythematosus (SLE) is a systemic autoimmune disease characterized by a breakdown of tolerance to nuclear antigens and the development of immune complexes. Genomic approaches have shown that human SLE leukocytes homogeneously express type I interferon (IFN)-induced and neutrophil-related transcripts. Increased production and/or bioavailability of IFN-α and associated alterations in dendritic cell (DC) homeostasis have been linked to lupus pathogenesis. Although neutrophils have long been shown to be associated with lupus, their potential role in disease pathogenesis remains elusive. Here, we show that mature SLE neutrophils are primed in vivo by type I IFN and die upon exposure to SLE-derived anti-ribonucleoprotein antibodies, releasing neutrophil extracellular traps (NETs). SLE NETs contain DNA as well as large amounts of LL37 and HMGB1, neutrophil proteins that facilitate the uptake and recognition of mammalian DNA by plasmacytoid DCs (pDCs). Indeed, SLE NETs activate pDCs to produce high levels of IFN-α in a DNA- and TLR9 (Toll-like receptor 9)-dependent manner. Our results reveal an unsuspected role for neutrophils in SLE pathogenesis and identify a novel link between nucleic acid-recognizing antibodies and type I IFN production in this disease.
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Caielli S, Conforti-Andreoni C, Di Pietro C, Usuelli V, Badami E, Malosio ML, Falcone M. On/off TLR signaling decides proinflammatory or tolerogenic dendritic cell maturation upon CD1d-mediated interaction with invariant NKT cells. J Immunol 2010; 185:7317-29. [PMID: 21078913 DOI: 10.4049/jimmunol.1000400] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Invariant NKT (iNKT) cells play an effector/adjuvant function during antimicrobial and antitumoral immunity and a regulatory role to induce immune tolerance and prevent autoimmunity. iNKT cells that differentially modulate adaptive immunity do not bear a unique phenotype and/or specific cytokine secretion profile, thus opening questions on how a single T cell subset can exert opposite immunological tasks. In this study, we show that iNKT cells perform their dual roles through a single mechanism of action relying on the cognate interaction with myeloid dendritic cells (DCs) and leading to opposite effects depending on the presence of other maturation stimuli simultaneously acting on DCs. The contact of murine purified iNKT cells with immature autologous DCs directly triggers the tolerogenic maturation of DCs, rendering them able to induce regulatory T cell differentiation and prevent autoimmune diabetes in vivo. Conversely, the interaction of the same purified iNKT cells with DCs, in the presence of simultaneous TLR4 stimulation, significantly enhances proinflammatory DC maturation and IL-12 secretion. The different iNKT cell effects are mediated through distinct mechanisms and activation of different molecular pathways within the DC: CD1d signaling and activation of the ERK1/2 pathway for the tolerogenic action, and CD40-CD40L interaction and NF-κB activation for the adjuvant effect. Our data suggest that the DC decision to undergo proinflammatory or tolerogenic maturation results from the integration of different signals received at the time of iNKT cell contact and could have important therapeutic implications for exploiting iNKT cell adjuvant/regulatory properties in autoimmune diseases, infections, and cancer.
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Affiliation(s)
- Simone Caielli
- Division of Immunology, Transplantation and Infectious Diseases, San Raffaele Scientific Institute, Milan, Italy
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Caielli S, Sorini C, Falcone M. The dangerous liaison between iNKT cells and dendritic cells: does it prevent or promote autoimmune diseases? Autoimmunity 2010; 44:11-22. [PMID: 20672910 DOI: 10.3109/08916931003782130] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Invariant natural killer T (iNKT) cells represent an important regulatory T-cell subset that perceives signals of danger and/or cellular distress and modulate the adaptive immune response accordingly. In the presence of pathogens, iNKT cells acquire an adjuvant function that is fundamental to boost anti-microbial and anti-tumor immunity. At the same time, iNKT cells can play a negative regulatory function to maintain peripheral T-cell tolerance toward self-antigens and to prevent autoimmune disease. Both these effects of iNKT cells involve the modulation of the activity of dendritic cells (DCs) through cell-cell interaction. Indeed, iNKT cells can either boost Th1 immunity by enhancing maturation of pro-inflammatory DCs or promote immune tolerance through the maturation of tolerogenic DCs. This dual action of iNKT cells opens questions on the modalities by which a single-cell subset can exert opposite effects on DCs and may even put in question the overall immunosuppressive properties of iNKT cells. This review presents the large body of evidence that shows the ability of iNKT cells to negatively regulate autoimmunity and to prevent autoimmune diseases including multiple sclerosis, type 1 diabetes, rheumatoid arthritis, and systemic lupus erythematosus. In addition, an update is provided on the mechanisms of iNKT-DCs interactions and how this can result in inflammatory or tolerogenic responses.
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Affiliation(s)
- Simone Caielli
- Experimental Diabetes Unit, Division of Immunology, Transplantation and Infectious Diseases, San Raffaele Scientific Institute, Milan, Italy
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Baev DV, Caielli S, Ronchi F, Coccia M, Facciotti F, Nichols KE, Falcone M. Impaired SLAM-SLAM homotypic interaction between invariant NKT cells and dendritic cells affects differentiation of IL-4/IL-10-secreting NKT2 cells in nonobese diabetic mice. J Immunol 2008; 181:869-77. [PMID: 18606638 DOI: 10.4049/jimmunol.181.2.869] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The regulatory function of invariant NKT (iNKT) cells for tolerance induction and prevention of autoimmunity is linked to a specific cytokine profile that comprises the secretion of type 2 cytokines like IL-4 and IL-10 (NKT2 cytokine profile). The mechanism responsible for iNKT cell differentiation toward a type 2 phenotype is unknown. Herein we show that costimulatory signals provided by the surface receptor signaling lymphocytic activation molecule (SLAM) on myeloid dendritic cells (mDC) to iNKT cells is crucial for NKT2 orientation. Additionally, we demonstrate that the impaired acquisition of an NKT2 cytokine phenotype in nonobese diabetic (NOD) mice that spontaneously develop autoimmune diabetes is due to defective SLAM-induced signals generated by NOD mDC. Mature mDC of C57BL/6 mice express SLAM and induce C57BL/6 or NOD iNKT cells to acquire a predominant NKT2 cytokine phenotype in response to antigenic stimulation with the iNKT cell-specific Ag, the alpha-galactosylceramide. In contrast, mature NOD mDC express significantly lower levels of SLAM and are unable to promote GATA-3 (the SLAM-induced intracellular signal) up-regulation and IL-4/IL-10 production in iNKT cells from NOD or C57BL/6 mice. NOD mice carry a genetic defect of the Slamf1 gene that is associated with reduced SLAM expression on double-positive thymocytes and altered iNKT cell development in the thymus. Our data suggest that the genetic Slamf1 defect in NOD mice also affects SLAM expression on other immune cells such as the mDC, thus critically impairing the peripheral differentiation of iNKT cells toward a regulatory NKT2 type.
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Affiliation(s)
- Denis V Baev
- Experimental Diabetes Unit, San Raffaele Scientific Institute, Milan, Italy
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Gigli G, Caielli S, Cutuli D, Falcone M. Innate immunity modulates autoimmunity: type 1 interferon-beta treatment in multiple sclerosis promotes growth and function of regulatory invariant natural killer T cells through dendritic cell maturation. Immunology 2007; 122:409-17. [PMID: 17617156 PMCID: PMC2266024 DOI: 10.1111/j.1365-2567.2007.02655.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Type 1 interferon-beta (T1IFN-beta) is an innate cytokine and the first-choice therapy for multiple sclerosis (MS). It is still unclear how T1IFN-beta, whose main function is to promote innate immunity during infections, plays a beneficial role in autoimmune disease. Here we show that T1IFN-beta promoted the expansion and function of invariant natural killer (iNKT) cells, an innate T-cell subset with strong immune regulatory properties that is able to prevent autoimmune disease in pre-clinical models of MS and type 1 diabetes. Specifically, we observed that T1IFN-beta treatment significantly increased the percentages of Valpha24(+) NKT cells in peripheral blood mononuclear cells of MS patients. Furthermore, iNKT cells of T1IFN-beta-treated individuals showed a dramatically improved secretion of cytokines (interleukins 4 and 5 and interferon-gamma) in response to antigenic stimulation compared to iNKT cells isolated from the same patients before T1IFN-beta treatment. The effect of T1IFN-beta on iNKT cells was mediated through the modulation of myeloid dendritic cells (DCs). In fact, DCs modulated in vivo or in vitro by T1IFN-beta were more efficient antigen-presenting cells for iNKT cells. Such a modulatory effect of T1IFN-beta was associated with up-regulation on DCs of key costimulatory molecules for iNKT (i.e. CD80, CD40 and CD1d). Our data identified the iNKT cell/DC pathway as a new target for the immune regulatory effect of T1IFNs in autoimmune diseases and provide a possible mechanism to explain the clinical efficacy of T1IFN-beta in MS.
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Affiliation(s)
- Gianluigi Gigli
- Immunology of Diabetes Unit, San Raffaele Scientific Institute, Milan, Italy
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Omodeo Salè F, Vanzulli E, Caielli S, Taramelli D. Regulation of human erythrocyte glyceraldehyde-3-phosphate dehydrogenase by ferriprotoporphyrin IX. FEBS Lett 2005; 579:5095-9. [PMID: 16139273 DOI: 10.1016/j.febslet.2005.07.081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2005] [Accepted: 07/26/2005] [Indexed: 10/25/2022]
Abstract
Erythrocyte glyceraldehyde-3-phosphate dehydrogenase (G3PD) is a glycolytic enzyme containing critical thiol groups and whose activity is reversibly inhibited by binding to the cell membrane. Here, we demonstrate that the insertion of ferriprotoporphyrin IX (FP) into the red cell membranes exerts two opposite effects on membrane bound G3PD. First, the enzyme is partially inactivated through oxidation of critical thiols. Dithiothreitol restores part of the activity, but some critical thiols are irreversibly oxidized or crosslinked to products of FP-induced lipid peroxidation. Second, G3PD binding to the membrane is modified and the enzyme is activated through displacement into the cytosol and/or release from its binding site.
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Affiliation(s)
- Fausta Omodeo Salè
- Institute of General Physiology and Biochemistry G. Esposito, Facoltá di Farmacia, University of Milan, Milan, Italy.
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