1
|
Zhuang H, Han S, Harris NS, Reeves WH. MEK1/2 and ERK1/2 mediated lung endothelial injury and altered hemostasis promote diffuse alveolar hemorrhage in murine lupus. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.07.593006. [PMID: 38766226 PMCID: PMC11100673 DOI: 10.1101/2024.05.07.593006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Objective About 3% of lupus patients develop severe diffuse alveolar hemorrhage (DAH) with pulmonary vasculitis. B6 mice with pristane-induced lupus also develop DAH, but BALB/c mice are resistant. DAH is independent of TLR signaling and other inflammatory pathways. This study examined the role of the mitogen-activated protein kinase pathway (MEK1/2-ERK1/2, JNK, p38). Methods B6 and BALB/c mice were treated with pristane ± inhibitors of MEK1/2 (trametinib/GSK1120212, "GSK"), ERK1/2 (SCH772984, "SCH"), JNK, or p38. Effects on lung hemorrhage and hemostasis were determined. Results GSK and SCH abolished DAH, whereas JNK and p38 inhibitors were ineffective. Apoptotic cells were present in lung from pristane-treated mice, but not mice receiving pristane+GSK and endothelial dysfunction was normalized. Expression of the ERK1/2-regulated transcription factor Egr1 increased in pristane-treated B6, but not BALB/c, mice and was normalized by GSK. Pristane also increased expression of the anticoagulant genes Tfpi (tissue factor pathway inhibitor) and Thbd (thrombomodulin) in B6 mice. The ratio of tissue factor ( F3 ) to Tfpi increased in B6 (but not BALB/c) mice and was normalized by GSK. Circulating Thbd protein increased in B6 mice and returned to normal after GSK treatment. Consistent with augmented endothelial anticoagulant activity, pristane treatment increased tail bleeding in B6 mice. Conclusion Pristane treatment promotes lung endothelial injury and DAH in B6 mice by activating the MEK1/2-ERK1/2 pathway and impairing hemostasis. The hereditary factors determining susceptibility to lung injury and bleeding in pristane-induced lupus are relevant to the pathophysiology of life-threatening DAH in SLE and may help to optimize therapy.
Collapse
|
2
|
Chen J, Liu C, Chernatynskaya AV, Newby B, Brusko TM, Xu Y, Barra JM, Morgan N, Santarlas C, Reeves WH, Tse HM, Leiding JW, Mathews CE. NADPH Oxidase 2-Derived Reactive Oxygen Species Promote CD8+ T Cell Effector Function. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:258-270. [PMID: 38079221 PMCID: PMC10752859 DOI: 10.4049/jimmunol.2200691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/07/2023] [Indexed: 12/30/2023]
Abstract
Oxidants participate in lymphocyte activation and function. We previously demonstrated that eliminating the activity of NADPH oxidase 2 (NOX2) significantly impaired the effectiveness of autoreactive CD8+ CTLs. However, the molecular mechanisms impacting CD8+ T cell function remain unknown. In the present study, we examined the role of NOX2 in both NOD mouse and human CD8+ T cell function. Genetic ablation or chemical inhibition of NOX2 in CD8+ T cells significantly suppressed activation-induced expression of the transcription factor T-bet, the master transcription factor of the Tc1 cell lineage, and T-bet target effector genes such as IFN-γ and granzyme B. Inhibition of NOX2 in both human and mouse CD8+ T cells prevented target cell lysis. We identified that superoxide generated by NOX2 must be converted into hydrogen peroxide to transduce the redox signal in CD8+ T cells. Furthermore, we show that NOX2-generated oxidants deactivate the tumor suppressor complex leading to activation of RheB and subsequently mTOR complex 1. These results indicate that NOX2 plays a nonredundant role in TCR-mediated CD8+ T cell effector function.
Collapse
Affiliation(s)
- Jing Chen
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL
| | - Chao Liu
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL
| | - Anna V. Chernatynskaya
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL
| | - Brittney Newby
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL
| | - Todd M. Brusko
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL
| | - Yuan Xu
- Department of Medicine, University of Florida, Gainesville, FL
| | - Jessie M. Barra
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL
| | - Nadine Morgan
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL
| | | | | | - Hubert M. Tse
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL
| | - Jennifer W. Leiding
- Division of Allergy and Immunology, Department of Pediatrics, Johns Hopkins University, Baltimore, MD
- Institute for Clinical and Translational Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL
| | - Clayton E. Mathews
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL
| |
Collapse
|
3
|
Tang YY, Wang DC, Chen YY, Xu WD, Huang AF. Th1-related transcription factors and cytokines in systemic lupus erythematosus. Front Immunol 2023; 14:1305590. [PMID: 38164134 PMCID: PMC10757975 DOI: 10.3389/fimmu.2023.1305590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 11/27/2023] [Indexed: 01/03/2024] Open
Abstract
Systemic lupus erythematosus (SLE) is an inflammatory disorder related to immunity dysfunction. The Th1 cell family including Th1 cells, transcription factor T-bet, and related cytokines IFNγ, TNFα, IL-2, IL-18, TGF-β, and IL-12 have been widely discussed in autoimmunity, such as SLE. In this review, we will comprehensively discuss the expression profile of the Th1 cell family in both SLE patients and animal models and clarify how the family members are involved in lupus development. Interestingly, T-bet-related age-associated B cells (ABCs) and low-dose IL-2 treatment in lupus were emergently discussed as well. Collection of the evidence will better understand the roles of the Th1 cell family in lupus pathogenesis, especially targeting IL-2 in lupus.
Collapse
Affiliation(s)
- Yang-Yang Tang
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, Sichuan, China
| | - Da-Cheng Wang
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, Sichuan, China
| | - You-Yue Chen
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, Sichuan, China
| | - Wang-Dong Xu
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, Sichuan, China
| | - An-Fang Huang
- Department of Rheumatology and Immunology, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| |
Collapse
|
4
|
Maria NI, Papoin J, Raparia C, Sun Z, Josselsohn R, Lu A, Katerji H, Syeda MM, Polsky D, Paulson R, Kalfa T, Barnes BJ, Zhang W, Blanc L, Davidson A. Human TLR8 induces inflammatory bone marrow erythromyeloblastic islands and anemia in SLE-prone mice. Life Sci Alliance 2023; 6:e202302241. [PMID: 37495396 PMCID: PMC10372407 DOI: 10.26508/lsa.202302241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/04/2023] [Accepted: 07/06/2023] [Indexed: 07/28/2023] Open
Abstract
Anemia commonly occurs in systemic lupus erythematosus, a disease characterized by innate immune activation by nucleic acids. Overactivation of cytoplasmic sensors by self-DNA or RNA can cause erythroid cell death, while sparing other hematopoietic cell lineages. Whereas chronic inflammation is involved in this mechanism, less is known about the impact of systemic lupus erythematosus on the BM erythropoietic niche. We discovered that expression of the endosomal ssRNA sensor human TLR8 induces fatal anemia in Sle1.Yaa lupus mice. We observed that anemia was associated with a decrease in erythromyeloblastic islands and a block in differentiation at the CFU-E to proerythroblast transition in the BM. Single-cell RNAseq analyses of isolated BM erythromyeloblastic islands from human TLR8-expressing mice revealed that genes associated with essential central macrophage functions including adhesion and provision of nutrients were down-regulated. Although compensatory stress erythropoiesis occurred in the spleen, red blood cell half-life decreased because of hemophagocytosis. These data implicate the endosomal RNA sensor TLR8 as an additional innate receptor whose overactivation causes acquired failure of erythropoiesis via myeloid cell dysregulation.
Collapse
Affiliation(s)
- Naomi I Maria
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Northwell Health, Hempstead, NY, USA
| | - Julien Papoin
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Northwell Health, Hempstead, NY, USA
| | - Chirag Raparia
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Northwell Health, Hempstead, NY, USA
| | - Zeguo Sun
- Department of Medicine, Mount Sinai Medical Center, New York, NY, USA
| | - Rachel Josselsohn
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Ailing Lu
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Hani Katerji
- Department of Pathology, University of Rochester, Rochester, NY, USA
| | - Mahrukh M Syeda
- The Ronald O. Perelman Department of Dermatology, New York University Grossman School of Medicine, New York, NY, USA
| | - David Polsky
- The Ronald O. Perelman Department of Dermatology, New York University Grossman School of Medicine, New York, NY, USA
| | - Robert Paulson
- Department of Veterinary and Biomedical Sciences, Penn State College of Agricultural Sciences, University Park, PA, USA
| | - Theodosia Kalfa
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Betsy J Barnes
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Northwell Health, Hempstead, NY, USA
| | - Weijia Zhang
- Department of Medicine, Mount Sinai Medical Center, New York, NY, USA
| | - Lionel Blanc
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Northwell Health, Hempstead, NY, USA
| | - Anne Davidson
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Northwell Health, Hempstead, NY, USA
| |
Collapse
|
5
|
Liou LB, Chen CC, Chiang WY, Chen MH. De-sialylated and sialylated IgG anti-dsDNA antibodies respectively worsen and mitigate experimental mouse lupus proteinuria and possible mechanisms. Int Immunopharmacol 2022; 109:108837. [DOI: 10.1016/j.intimp.2022.108837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 04/30/2022] [Accepted: 05/03/2022] [Indexed: 01/10/2023]
|
6
|
Li P, Jiang M, Li K, Li H, Zhou Y, Xiao X, Xu Y, Krishfield S, Lipsky PE, Tsokos GC, Zhang X. Glutathione peroxidase 4-regulated neutrophil ferroptosis induces systemic autoimmunity. Nat Immunol 2021; 22:1107-1117. [PMID: 34385713 PMCID: PMC8609402 DOI: 10.1038/s41590-021-00993-3] [Citation(s) in RCA: 171] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 07/07/2021] [Indexed: 02/06/2023]
Abstract
The linkage between neutrophil death and the development of autoimmunity has not been thoroughly explored. Here, we show that neutrophils from either lupus-prone mice or patients with systemic lupus erythematosus (SLE) undergo ferroptosis. Mechanistically, autoantibodies and interferon-α present in the serum induce neutrophil ferroptosis through enhanced binding of the transcriptional repressor CREMα to the glutathione peroxidase 4 (Gpx4, the key ferroptosis regulator) promoter, which leads to suppressed expression of Gpx4 and subsequent elevation of lipid-reactive oxygen species. Moreover, the findings that mice with neutrophil-specific Gpx4 haploinsufficiency recapitulate key clinical features of human SLE, including autoantibodies, neutropenia, skin lesions and proteinuria, and that the treatment with a specific ferroptosis inhibitor significantly ameliorates disease severity in lupus-prone mice reveal the role of neutrophil ferroptosis in lupus pathogenesis. Together, our data demonstrate that neutrophil ferroptosis is an important driver of neutropenia in SLE and heavily contributes to disease manifestations.
Collapse
Affiliation(s)
- Pengchong Li
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China, 100730,Clinical Immunology Centre, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China, 100730
| | - Mengdi Jiang
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China, 100730,Clinical Immunology Centre, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China, 100730
| | - Ketian Li
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China, 100730,Clinical Immunology Centre, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China, 100730
| | - Hao Li
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
| | - Yangzhong Zhou
- Department of Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China, 100730
| | - Xinyue Xiao
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China, 100730
| | - Yue Xu
- Clinical Immunology Centre, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China, 100730
| | - Suzanne Krishfield
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
| | - Peter E Lipsky
- RILITE Research Institute and AMPEL BioSolutions, Charlottesville, Virginia, USA.,Correspondence to: Xuan Zhang, , George C Tsokos, , Peter E Lipsky,
| | - George C Tsokos
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA.,Correspondence to: Xuan Zhang, , George C Tsokos, , Peter E Lipsky,
| | - Xuan Zhang
- Clinical Immunology Centre, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China, 100730,Department of Rheumatology, Beijing Hospital, National Center of Gerontology, Chinese Academy of Medical Sciences & Peking Union Medical College, 1th Dongdan Dahua Road, Beijing, 100730, China.,Correspondence to: Xuan Zhang, , George C Tsokos, , Peter E Lipsky,
| |
Collapse
|
7
|
Lee J, Jang S, Choi M, Kang M, Lim SG, Kim SY, Jang S, Ko J, Kim E, Yi J, Choo Y, Kim MO, Ryoo ZY. Overexpression of cathepsin S exacerbates lupus pathogenesis through upregulation TLR7 and IFN-α in transgenic mice. Sci Rep 2021; 11:16348. [PMID: 34381063 PMCID: PMC8357804 DOI: 10.1038/s41598-021-94855-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 07/14/2021] [Indexed: 12/25/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a chronic autoimmune disease that affects multiple organs. Recent studies suggest relevance between cysteine protease cathepsin S (CTSS) expression and SLE. To investigate the mechanism of CTSS in SLE, CTSS-overexpressing transgenic (TG) mice were generated, and induced lupus-like symptoms. Eight months later, the TG mice spontaneously developed typical SLE symptoms regardless of the inducement. Furthermore, we observed increased toll-like receptor 7 (TLR7) expression with increased monocyte and neutrophil populations in the TG mice. In conclusion, overexpression of CTSS in mice influences TLR7 expression, autoantibodies and IFN-α, which leads to an autoimmune reaction and exacerbates lupus-like symptoms.
Collapse
Affiliation(s)
- Jinhee Lee
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Korea
| | - Soyoung Jang
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Korea
| | - Minjee Choi
- Core Protein Resources Center, DGIST, Daegu, Republic of Korea
| | - Mincheol Kang
- Department of Physiology and Cell Biology, School of Medicine, University of Nevada Reno, Reno, NV, 89557, USA
| | - Su-Geun Lim
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Korea
| | - Si-Yong Kim
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Korea
| | - Soyeon Jang
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Korea
| | - Jiwon Ko
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Korea
| | - Eungyung Kim
- Department of Animal Science and Biotechnology, Kyungpook National University, Sangju-si, Gyeongsangbuk-do, 37224, Republic of Korea
| | - Junkoo Yi
- Gyeongsangbukdo Livestock Research Institute, Yeongju, Republic of Korea
| | - Yeonsik Choo
- Department of Biology, Kyungpook National University, Daegu, South Korea
| | - Myoung Ok Kim
- Department of Animal Science and Biotechnology, Kyungpook National University, Sangju-si, Gyeongsangbuk-do, 37224, Republic of Korea.
| | - Zae Young Ryoo
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, Korea.
| |
Collapse
|
8
|
Patrolling human SLE haematopoietic progenitors demonstrate enhanced extramedullary colonisation; implications for peripheral tissue injury. Sci Rep 2021; 11:15759. [PMID: 34344937 PMCID: PMC8333421 DOI: 10.1038/s41598-021-95224-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 07/06/2021] [Indexed: 12/28/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease where bone-marrow-derived haematopoietic cells have a key role in its pathogenesis with accumulating evidence suggesting an aberrant function of haematopoietic stem/progenitor cells (HSPCs). We examined whether patrolling HSPCs differ from bone-marrow HSPCs both in SLE and healthy individuals, and how they participate in peripheral tissue injury. By employing next-generation RNA sequencing, the transcriptomes of CD34+ HSPCs deriving from the bone marrow and those patrolling the bloodstream of both healthy and individuals with SLE were compared. Patrolling SLE and Healthy human HSPC kinetics were examined through their inoculation into humanised mice. Patrolling and bone-marrow HSPCs have distinct molecular signatures, while patrolling SLE HSPCs showed an enhanced extramedullary gene expression profile. Non-mobilised, SLE-derived circulating HSPCs demonstrated altered homing capacities. Xenotransplantation of circulating HSPCs in humanised mice showed that human peripheral blood HSPCs possess the ability for extramedullary organ colonisation to the kidneys. Circulating and bone marrow-derived HSPCs are distinct in steady and diseased states. Patrolling SLE CD34+ HSPCs are able to home at extramedullary sites such as the spleen and kidneys, potentially participating in peripheral tissue injury.
Collapse
|
9
|
Maier JI, Rogg M, Helmstädter M, Sammarco A, Walz G, Werner M, Schell C. A Novel Model for Nephrotic Syndrome Reveals Associated Dysbiosis of the Gut Microbiome and Extramedullary Hematopoiesis. Cells 2021; 10:cells10061509. [PMID: 34203913 PMCID: PMC8232754 DOI: 10.3390/cells10061509] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/10/2021] [Accepted: 06/10/2021] [Indexed: 12/15/2022] Open
Abstract
Glomerular kidney disease causing nephrotic syndrome is a complex systemic disorder and is associated with significant morbidity in affected patient populations. Despite its clinical relevance, well-established models are largely missing to further elucidate the implications of uncontrolled urinary protein loss. To overcome this limitation, we generated a novel, inducible, podocyte-specific transgenic mouse model (Epb41l5fl/fl*Nphs1-rtTA-3G*tetOCre), developing nephrotic syndrome in adult mice. Animals were comprehensively characterized, including microbiome analysis and multiplexed immunofluorescence imaging. Induced knockout mice developed a phenotype consistent with focal segmental glomerular sclerosis (FSGS). Although these mice showed hallmark features of severe nephrotic syndrome (including proteinuria, hypoalbuminemia and dyslipidemia), they did not exhibit overt chronic kidney disease (CKD) phenotypes. Analysis of the gut microbiome demonstrated distinct dysbiosis and highly significant enrichment of the Alistipes genus. Moreover, Epb41l5-deficient mice developed marked organ pathologies, including extramedullary hematopoiesis of the spleen. Multiplex immunofluorescence imaging demonstrated red pulp macrophage proliferation and mTOR activation as driving factors of hematopoietic niche expansion. Thus, this novel mouse model for adult-onset nephrotic syndrome reveals the significant impact of proteinuria on extra-renal manifestations, demonstrating the versatility of this model for nephrotic syndrome-related research.
Collapse
Affiliation(s)
- Jasmin I. Maier
- Institute of Surgical Pathology, Faculty of Medicine, Medical Center-University of Freiburg, 79106 Freiburg, Germany; (J.I.M.); (M.R.); (A.S.); (M.W.)
| | - Manuel Rogg
- Institute of Surgical Pathology, Faculty of Medicine, Medical Center-University of Freiburg, 79106 Freiburg, Germany; (J.I.M.); (M.R.); (A.S.); (M.W.)
| | - Martin Helmstädter
- Department of Medicine IV, Faculty of Medicine, Medical Center-University of Freiburg, 79106 Freiburg, Germany; (M.H.); (G.W.)
| | - Alena Sammarco
- Institute of Surgical Pathology, Faculty of Medicine, Medical Center-University of Freiburg, 79106 Freiburg, Germany; (J.I.M.); (M.R.); (A.S.); (M.W.)
| | - Gerd Walz
- Department of Medicine IV, Faculty of Medicine, Medical Center-University of Freiburg, 79106 Freiburg, Germany; (M.H.); (G.W.)
| | - Martin Werner
- Institute of Surgical Pathology, Faculty of Medicine, Medical Center-University of Freiburg, 79106 Freiburg, Germany; (J.I.M.); (M.R.); (A.S.); (M.W.)
| | - Christoph Schell
- Institute of Surgical Pathology, Faculty of Medicine, Medical Center-University of Freiburg, 79106 Freiburg, Germany; (J.I.M.); (M.R.); (A.S.); (M.W.)
- Correspondence:
| |
Collapse
|
10
|
Lee JY, Madany E, El Kadi N, Pandya S, Ng K, Yamashita M, Jefferies CA, Gibb DR. Type 1 Interferon Gene Signature Promotes RBC Alloimmunization in a Lupus Mouse Model. Front Immunol 2020; 11:584254. [PMID: 33101313 PMCID: PMC7546415 DOI: 10.3389/fimmu.2020.584254] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/03/2020] [Indexed: 11/28/2022] Open
Abstract
Red blood cell (RBC) transfusion exposes recipients to hundreds of unmatched minor RBC antigens. This exposure can lead to production of alloantibodies that promote clinically significant hemolytic events. Multiple studies have reported an increased frequency of RBC alloimmunization in patients with autoimmunity. However, cellular and molecular mechanisms that underlie autoimmunity-induced alloimmunization have not been reported. Patients with systemic lupus erythematosus (SLE) have a high frequency of alloimmunization and express a type 1 interferon (IFNα/β) gene signature. Thus, we utilized the pristane-induced lupus mouse model to test the hypothesis that inflammation in lupus promotes RBC alloimmunization, and to examine the potential role of IFNα/β. Intraperitoneal injection of pristane, a hydrocarbon oil, led to autoantibody production, glomerulonephritis, and pulmonary hemorrhage in wild type (WT) mice. Pristane treatment significantly induced serum IFNα and expression of multiple interferon-stimulated genes (ISGs) in peripheral blood and peritoneal fluid cells, including inflammatory macrophages. Following transfusion with allogeneic RBCs expressing the KEL glycoprotein, pristane-treated WT mice produced significantly elevated levels of anti-KEL IgM and anti-KEL IgG, compared to untreated mice. Pristane induced comparable levels of inflammatory cells and cytokines in mice lacking the IFNα/β receptor (IFNAR1–/–) or the IFNα/β-inducing transcriptions factors (IRF3/7–/–), compared to WT mice. However, pristane-treated IFNAR1–/– and IRF3/7–/– mice failed to produce ISGs and produced significantly lower levels of transfusion-induced anti-KEL IgG, compared to WT mice. Thus, pristane induction of a lupus-like phenotype promoted alloimmunization to the KEL RBC antigen in an IFNα/β-dependent manner. To our knowledge, this is the first examination of molecular mechanisms contributing to RBC alloimmunization in a model of autoimmunity. These results warrant further investigation of the role of IFNα/β in alloimmunization to other RBC antigens and the contribution of the IFNα/β gene signature to the elevated frequency of alloimmunization in patients with SLE.
Collapse
Affiliation(s)
- June Young Lee
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Emaan Madany
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Najwa El Kadi
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Sumaarg Pandya
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Kessandra Ng
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Michifumi Yamashita
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Caroline A Jefferies
- Department of Internal Medicine, Division of Rheumatology, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - David R Gibb
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States.,Division of Transfusion Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| |
Collapse
|
11
|
Einwächter H, Heiseke A, Schlitzer A, Gasteiger G, Adler H, Voehringer D, Manz MG, Ruzsics Z, Dölken L, Koszinowski UH, Sparwasser T, Reindl W, Jordan S. The Innate Immune Response to Infection Induces Erythropoietin-Dependent Replenishment of the Dendritic Cell Compartment. Front Immunol 2020; 11:1627. [PMID: 32849551 PMCID: PMC7411349 DOI: 10.3389/fimmu.2020.01627] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 06/17/2020] [Indexed: 12/29/2022] Open
Abstract
Dendritic cells (DC) play a key role in the adaptive immune response due to their ability to present antigens and stimulate naïve T cells. Many bacteria and viruses can efficiently target DC, resulting in impairment of their immunostimulatory function or elimination. Hence, the DC compartment requires replenishment following infection to ensure continued operational readiness of the adaptive immune system. Here, we investigated the molecular and cellular mechanisms of inflammation-induced DC generation. We found that infection with viral and bacterial pathogens as well as Toll-like receptor 9 (TLR9) ligation with CpG-oligodeoxynucleotide (CpG-ODN) expanded an erythropoietin (EPO)-dependent TER119+CD11a+ cell population in the spleen that had the capacity to differentiate into TER119+CD11chigh and TER119-CD11chigh cells both in vitro and in vivo. TER119+CD11chigh cells contributed to the conventional DC pool in the spleen and specifically increased in lymph nodes draining the site of local inflammation. Our results reveal a so far undescribed inflammatory EPO-dependent pathway of DC differentiation and establish a mechanistic link between innate immune recognition of potential immunosuppressive pathogens and the maintenance of the DC pool during and after infection.
Collapse
Affiliation(s)
- Henrik Einwächter
- II. Medizinische Klinik, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany
| | - Alexander Heiseke
- II. Medizinische Klinik, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany
| | | | - Georg Gasteiger
- Institute of Systems Immunology, Julius-Maximilians-University Würzburg, Würzburg, Germany
| | - Heiko Adler
- Comprehensive Pneumology Center, Research Unit Lung Repair and Regeneration, Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Munich, Germany.,German Center of Lung Research (DZL), Giessen, Germany
| | - David Voehringer
- Department of Infection Biology, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Nürnberg, Erlangen, Germany
| | - Markus G Manz
- Division of Hematology, Department of Internal Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Zsolt Ruzsics
- Institute of Virology, University Medical Center, Medical Faculty, University of Freiburg, Freiburg, Germany
| | - Lars Dölken
- Institute for Virology and Immunobiology, Julius-Maximilians-University Würzburg, Würzburg, Germany
| | - Ulrich H Koszinowski
- Max von Pettenkofer-Institute, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Tim Sparwasser
- Institute of Medical Microbiology and Hygiene, University Medicine Mainz, Johannes-Gutenberg-University Mainz, Mainz, Germany
| | - Wolfgang Reindl
- II. Medizinische Klinik, Medizinische Fakultät Mannheim, Universität Heidelberg, Mannheim, Germany
| | - Stefan Jordan
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Microbiology, Infectious Diseases and Immunology, Berlin, Germany
| |
Collapse
|
12
|
Abstract
Until recently, autoimmune disease research has primarily been focused on elucidating the role of the adaptive immune system. In the past decade or so, the role of the innate immune system in the pathogenesis of autoimmunity has increasingly been realized. Recent findings have elucidated paradigm-shifting concepts, for example, the implications of "trained immunity" and a dysbiotic microbiome in the susceptibility of predisposed individuals to clinical autoimmunity. In addition, the application of modern technologies such as the quantum dot (Qdot) system and 'Omics' (e.g., genomics, proteomics, and metabolomics) data-processing tools has proven fruitful in revisiting mechanisms underlying autoimmune pathogenesis and in identifying novel therapeutic targets. This review highlights recent findings discussed at the American Autoimmune Related Disease Association (AARDA) 2019 colloquium. The findings covering autoimmune diseases and autoinflammatory diseases illustrate how new developments in common innate immune pathways can contribute to the better understanding and management of these immune-mediated disorders.
Collapse
|
13
|
Alpha-1-Antitrypsin Ameliorates Pristane Induced Diffuse Alveolar Hemorrhage in Mice. J Clin Med 2019; 8:jcm8091341. [PMID: 31470606 PMCID: PMC6780888 DOI: 10.3390/jcm8091341] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/21/2019] [Accepted: 08/26/2019] [Indexed: 12/20/2022] Open
Abstract
Diffuse alveolar hemorrhage (DAH) is a fatal complication in patients with lupus. DAH can be induced in B6 mice by an intraperitoneal injection of pristane. Since human alpha-1-antitrypsin (hAAT) is an anti-inflammatory and immuno-regulatory protein, we investigated the protective effect of hAAT against pristane-induced DAH in B6 mice and hAAT transgenic (hAAT-Tg) mice. We first showed that hAAT Tg expression lowers TNF-α production in B cells, as well as CD4+ T cells in untreated mice. Conversely, the frequency of regulatory CD4+CD25+ and CD4+CD25-IL-10+ cells was significantly higher in hAAT-Tg than in B6 mice. This confirmed the anti-inflammatory effect of hAAT that was observed even at steady state. One week after a pristane injection, the frequency of peritoneal Ly6Chi inflammatory monocytes and neutrophils in hAAT-Tg mice was significantly lower than that in B6 mice. Importantly, pristane-induced DAH was completely prevented in hAAT-Tg mice and this was associated with a modulation of anti- to pro-inflammatory myeloid cell ratio/balance. We also showed that treatment with hAAT decreased the severity of DAH in B6 mice. These results showed for the first time that hAAT has a therapeutic potential for the treatment of DAH.
Collapse
|
14
|
Lee PY, Nelson-Maney N, Huang Y, Levescot A, Wang Q, Wei K, Cunin P, Li Y, Lederer JA, Zhuang H, Han S, Kim EY, Reeves WH, Nigrovic PA. High-dimensional analysis reveals a pathogenic role of inflammatory monocytes in experimental diffuse alveolar hemorrhage. JCI Insight 2019; 4:129703. [PMID: 31391335 DOI: 10.1172/jci.insight.129703] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 06/27/2019] [Indexed: 12/24/2022] Open
Abstract
Diffuse alveolar hemorrhage (DAH) is a life-threatening pulmonary complication associated with systemic lupus erythematosus, vasculitis, and stem cell transplant. Little is known about the pathophysiology of DAH, and no targeted therapy is currently available. Pristane treatment in mice induces systemic autoimmunity and lung hemorrhage that recapitulates hallmark pathologic features of human DAH. Using this experimental model, we performed high-dimensional analysis of lung immune cells in DAH by mass cytometry and single-cell RNA sequencing. We found a large influx of myeloid cells to the lungs in DAH and defined the gene expression profile of infiltrating monocytes. Bone marrow-derived inflammatory monocytes actively migrated to the lungs and homed adjacent to blood vessels. Using 3 models of monocyte deficiency and complementary transfer studies, we established a central role of inflammatory monocytes in the development of DAH. We further found that the myeloid transcription factor interferon regulatory factor 8 is essential to the development of both DAH and type I interferon-dependent autoimmunity. These findings collectively reveal monocytes as a potential treatment target in DAH.
Collapse
Affiliation(s)
- Pui Y Lee
- Division of Immunology, Boston Children's Hospital, Boston, Massachusetts, USA.,Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Nathan Nelson-Maney
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Yuelong Huang
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Anaïs Levescot
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Qiang Wang
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Kevin Wei
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Pierre Cunin
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Yi Li
- Division of Rheumatology, Beth Israel Deaconess Hospital, Boston, Massachusetts, USA
| | - James A Lederer
- Center for Data Sciences, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Haoyang Zhuang
- Division of Rheumatology, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Shuhong Han
- Division of Rheumatology, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Edy Y Kim
- Department of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Westley H Reeves
- Division of Rheumatology, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Peter A Nigrovic
- Division of Immunology, Boston Children's Hospital, Boston, Massachusetts, USA.,Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Boston, Massachusetts, USA
| |
Collapse
|
15
|
Peixoto TV, Carrasco S, Botte DAC, Catanozi S, Parra ER, Lima TM, Ugriumov N, Soriano FG, de Mello SBV, Rodrigues CM, Goldenstein-Schainberg C. CD4+CD69+ T cells and CD4+CD25+FoxP3+ Treg cells imbalance in peripheral blood, spleen and peritoneal lavage from pristane-induced systemic lupus erythematosus (SLE) mice. Adv Rheumatol 2019; 59:30. [DOI: 10.1186/s42358-019-0072-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 07/02/2019] [Indexed: 12/18/2022] Open
|
16
|
Smith N, Rodero MP, Bekaddour N, Bondet V, Ruiz-Blanco YB, Harms M, Mayer B, Bader-Meunier B, Quartier P, Bodemer C, Baudouin V, Dieudonné Y, Kirchhoff F, Sanchez Garcia E, Charbit B, Leboulanger N, Jahrsdörfer B, Richard Y, Korganow AS, Münch J, Nisole S, Duffy D, Herbeuval JP. Control of TLR7-mediated type I IFN signaling in pDCs through CXCR4 engagement-A new target for lupus treatment. SCIENCE ADVANCES 2019; 5:eaav9019. [PMID: 31309143 PMCID: PMC6620093 DOI: 10.1126/sciadv.aav9019] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 06/06/2019] [Indexed: 06/10/2023]
Abstract
Type I interferons are highly potent cytokines essential for self-protection against tumors and infections. Deregulations of type I interferon signaling are associated with multiple diseases that require novel therapeutic options. Here, we identified the small molecule, IT1t, a previously described CXCR4 ligand, as a highly potent inhibitor of Toll-like receptor 7 (TLR7)-mediated inflammation. IT1t inhibits chemical (R848) and natural (HIV) TLR7-mediated inflammation in purified human plasmacytoid dendritic cells from blood and human tonsils. In a TLR7-dependent lupus-like model, in vivo treatment of mice with IT1t drives drastic reduction of both systemic inflammation and anti-double-stranded DNA autoantibodies and prevents glomerulonephritis. Furthermore, IT1t controls inflammation, including interferon α secretion, in resting and stimulated cells from patients with systemic lupus erythematosus. Our findings highlight a groundbreaking immunoregulatory property of CXCR4 signaling that opens new therapeutic perspectives in inflammatory settings and autoimmune diseases.
Collapse
Affiliation(s)
- Nikaïa Smith
- CNRS UMR-8601, CICB, 45 rue des Saints-Pères, 75006 Paris, France
- Team Chemistry & Biology, Modeling & Immunology for Therapy, CBMIT, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Institute of Molecular Virology, Ulm University Medical Center, Ulm 89081, Germany
| | - Mathieu P. Rodero
- CNRS UMR-8601, CICB, 45 rue des Saints-Pères, 75006 Paris, France
- Team Chemistry & Biology, Modeling & Immunology for Therapy, CBMIT, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Nassima Bekaddour
- CNRS UMR-8601, CICB, 45 rue des Saints-Pères, 75006 Paris, France
- Team Chemistry & Biology, Modeling & Immunology for Therapy, CBMIT, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Vincent Bondet
- Immunobiology of Dendritic Cells, Institut Pasteur, Paris, France
- INSERM U1223, Paris, France
| | - Yasser B. Ruiz-Blanco
- Computational Biochemistry and Center of Medical Biotechnology, University of Duisburg-Essen, 45141 Essen, Germany
| | - Mirja Harms
- Institute of Molecular Virology, Ulm University Medical Center, Ulm 89081, Germany
| | - Benjamin Mayer
- Institute for Epidemiology and Medical Biometry, Ulm University, Ulm, Germany
| | - Brigitte Bader-Meunier
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Imagine Institute, Paris, France
- Paediatric Haematology-Immunology and Rheumatology Department, Hôpital Universitaire Necker, Assistance Publique-Hôpitaux de Paris, Paris, France
- INSERM UMR 1163, Laboratory of Immunogenetics of Paediatric Autoimmunity, Paris, France
| | - Pierre Quartier
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Imagine Institute, Paris, France
- Paediatric Haematology-Immunology and Rheumatology Department, Hôpital Universitaire Necker, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Christine Bodemer
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Imagine Institute, Paris, France
- Department of Paediatric Dermatology, Reference Centre for Rare Skin Disorders (MAGEC), Hôpital Universitaire Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris, 75015 Paris, France
| | - Véronique Baudouin
- Hôpital Universitaire Robert Debré, Néphrologie pédiatrique, Paris, France
| | - Yannick Dieudonné
- CNRS UPR 3572 “Immunopathology and Therapeutic Chemistry”/Laboratory of Excellence Médalis, Institute of Molecular and Cellular Biology (IBMC), Strasbourg, France
- Department of Clinical Immunology and Internal Medicine, National Reference Center for Rare Autoimmune Diseases, University Hospital, Strasbourg, France
- UFR Medicine, University of Strasbourg, Strasbourg, France
| | - Frank Kirchhoff
- Institute of Molecular Virology, Ulm University Medical Center, Ulm 89081, Germany
| | - Elsa Sanchez Garcia
- Computational Biochemistry and Center of Medical Biotechnology, University of Duisburg-Essen, 45141 Essen, Germany
| | - Bruno Charbit
- Centre for Translational Research, Institut Pasteur, Paris, France
| | - Nicolas Leboulanger
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Pediatric Otolaryngology Department, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Bernd Jahrsdörfer
- Institute of Transfusion Medicine and Immunogenetics (IKT) Ulm, Helmholtzstr. 10, 89081 Ulm, Germany
| | - Yolande Richard
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- INSERM U1016, Institut Cochin, Paris, France
- CNRS UMR 8104, Paris, France
| | - Anne-Sophie Korganow
- CNRS UPR 3572 “Immunopathology and Therapeutic Chemistry”/Laboratory of Excellence Médalis, Institute of Molecular and Cellular Biology (IBMC), Strasbourg, France
- Department of Clinical Immunology and Internal Medicine, National Reference Center for Rare Autoimmune Diseases, University Hospital, Strasbourg, France
- UFR Medicine, University of Strasbourg, Strasbourg, France
| | - Jan Münch
- Institute of Molecular Virology, Ulm University Medical Center, Ulm 89081, Germany
| | - Sébastien Nisole
- IRIM, Université de Montpellier, CNRS UMR, 9004 Montpellier, France
| | - Darragh Duffy
- Immunobiology of Dendritic Cells, Institut Pasteur, Paris, France
- INSERM U1223, Paris, France
- Centre for Translational Research, Institut Pasteur, Paris, France
| | - Jean-Philippe Herbeuval
- CNRS UMR-8601, CICB, 45 rue des Saints-Pères, 75006 Paris, France
- Team Chemistry & Biology, Modeling & Immunology for Therapy, CBMIT, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| |
Collapse
|
17
|
Abstract
PURPOSE OF REVIEW Autoimmune diseases are of unknown origin, and they represent significant causes of morbidity and mortality. Here, we review new developments in the understanding of their pathogenesis that have led to development of well tolerated and effective treatments. RECENT FINDINGS In addition to the long-recognized genetic impact of the HLA locus, interferon regulatory factors, PTPN22, STAT4, and NOX have been implicated in pathogenesis of systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA). Smoking, ultraviolet light, diet, and microbiota exert strong environmental influence on development of RA and SLE. Metabolism has been recognized as a critical integrator of genetic and environmental factors, and it controls immune cell differentiation both under physiological and pathological conditions. SUMMARY With the advent of high-throughput genetic, proteomic, and metabolomic technologies, the field of medicine has been shifting towards systems-based and personalized approaches to diagnose and treat common conditions, including rheumatic diseases. Regulatory checkpoints of metabolism and signal transduction, such as glucose utilization, mitochondrial electron transport, JAK, mTOR, and AMPK pathway activation, and production of pro-inflammatory cytokines IL-1, IL-6, and IL-17 have presented new targets for therapeutic intervention. This review amalgamates recent discoveries in genetics and metabolomics with immunological pathways of pathogenesis in rheumatic diseases.
Collapse
Affiliation(s)
- Eric Liu
- Division of Rheumatology, Departments of Medicine, Microbiology and Immunology, Biochemistry and Molecular Biology, State University of New York, Upstate Medical University, College of Medicine, Syracuse, New York, USA
| | | |
Collapse
|
18
|
Wolf SJ, Theros J, Reed TJ, Liu J, Grigorova IL, Martínez-Colón G, Jacob CO, Hodgin JB, Kahlenberg JM. TLR7-Mediated Lupus Nephritis Is Independent of Type I IFN Signaling. THE JOURNAL OF IMMUNOLOGY 2018; 201:393-405. [PMID: 29884703 DOI: 10.4049/jimmunol.1701588] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 05/18/2018] [Indexed: 12/15/2022]
Abstract
Systemic lupus erythematosus is an autoimmune disease characterized by increased type I IFNs, autoantibodies, and inflammatory-mediated multiorgan damage. TLR7 activation is an important contributor to systemic lupus erythematosus pathogenesis, but the mechanisms by which type I IFNs participate in TLR7-driven pathologic conditions remain uncertain. In this study, we examined the requirement for type I IFNs in TLR7-stimulated lupus nephritis. Lupus-prone NZM2328, INZM (which lack a functional type I IFN receptor), and NZM2328 IL-1β-/- mice were treated at 10 wk of age on the right ear with R848 (TLR7 agonist) or control (DMSO). Autoantibody production and proteinuria were assessed throughout treatment. Multiorgan inflammation was assessed at the time of decline in health. Renal infiltrates and mRNA expression were also examined after 14 d of treatment. Both NZM2328 and INZM mice exhibited a decline in survival after 3-4 wk of R848 but not vehicle treatment. Development of splenomegaly and liver inflammation were dependent on type I IFN. Interestingly, autoantibody production, early renal infiltration of dendritic cells, upregulation of IL-1β, and lupus nephritis occurred independent of type I IFN signaling. Development of TLR7-driven lupus nephritis was not abolished by the deletion of IL-1β. Thus, although IFN-α is sufficient to induce nephritis acceleration, our data emphasize a critical role for IFN-independent signaling in TLR7-mediated lupus nephritis. Further, despite upregulation of IL-1β after TLR7 stimulation, deletion of IL-1β is not sufficient to reduce lupus nephritis development in this model.
Collapse
Affiliation(s)
- Sonya J Wolf
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109.,Immunology Program, University of Michigan, Ann Arbor, MI 48109
| | - Jonathan Theros
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109
| | - Tammi J Reed
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109
| | - Jianhua Liu
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109
| | - Irina L Grigorova
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI 48109
| | | | - Chaim O Jacob
- University of Southern California Keck School of Medicine, Los Angeles, CA 90033; and
| | - Jeffrey B Hodgin
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109
| | - J Michelle Kahlenberg
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109;
| |
Collapse
|
19
|
Xu M, Chisholm KM, Fan G, Stevens AM, Rutledge JC. Hematoxylin Bodies in Pediatric Bone Marrow Aspirates and their Utility in the Diagnosis of Systemic Lupus Erythematosus. Pediatr Dev Pathol 2018; 21:300-307. [PMID: 28990859 DOI: 10.1177/1093526617734948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In our recent case report, the finding of lupus erythematosus (LE) cells in a bone marrow aspirate led to the diagnosis of systemic lupus erythematosus (SLE) and appropriate treatment, although the patient was not clinically suspected to have SLE. To determine whether LE cells are present in the bone marrow aspirates of SLE patients, but overlooked in routine bone marrow morphology review, bone marrow aspirates from 30 pediatric patients (15 with SLE and 15 with other diagnoses) evaluated by rheumatologists were reviewed. LE cells were found in the bone marrow aspirates of only 1 SLE patient and none in non-SLE patients. However, hematoxylin bodies were identified in 53% (8/15) of SLE patients. Neither hematoxylin bodies nor LE cells were found in the aspirates from patients with other disorders. Three additional pediatric patients identified prospectively were found to have hematoxylin bodies in the bone marrow aspirates. Although the diagnosis was not initially suspected, 2 of the 3 patients were subsequently diagnosed with SLE. All patients with hematoxylin bodies and SLE had antinuclear antibody titers ≥1:640 with a homogeneous staining pattern. In addition, bone marrow aspirates of 9 adult patients were reviewed, and neither LE cells nor hematoxylin bodies were identified. In summary, hematoxylin bodies were present in the bone marrow aspirates of many pediatric SLE patients, while LE cells were rare. The finding of hematoxylin bodies in pediatric bone marrow aspirates is a helpful and specific diagnostic clue that may lead to the diagnosis of SLE when other clinical features are nonspecific.
Collapse
Affiliation(s)
- Min Xu
- 1 Department of Laboratories, Seattle Children's Hospital, Seattle, Washington.,2 Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Karen M Chisholm
- 1 Department of Laboratories, Seattle Children's Hospital, Seattle, Washington.,2 Department of Laboratory Medicine, University of Washington, Seattle, Washington
| | - Guang Fan
- 3 Department of Pathology, Oregon Health Science University, Portland, Oregon
| | - Anne M Stevens
- 4 Division of Pediatric Rheumatology, Seattle Children's Hospital, Seattle, Washington.,5 Department of Pediatrics, University of Washington, Seattle, Washington.,6 Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, Washington
| | - Joe C Rutledge
- 1 Department of Laboratories, Seattle Children's Hospital, Seattle, Washington.,2 Department of Laboratory Medicine, University of Washington, Seattle, Washington
| |
Collapse
|
20
|
Abstract
The pathogenesis of systemic autoimmune diseases such as systemic lupus erythematosus (SLE) is based on the loss of self-tolerance against ubiquitous autoantigens involving all mechanisms of adaptive immunity. However, data accumulating over the last decade imply an important role also for numerous elements of innate immunity, namely the Toll-like receptors in the pathogenesis of SLE. Here we discuss their role in the most common organ complication of SLE, i.e. lupus nephritis. We summarize experimental and clinical data on the expression and functional contribution of the Toll-like receptors in immune complex glomerulonephritis, and intrarenal inflammation. Based on these discoveries Toll-like receptors are evolving as therapeutic targets for the treatment of SLE and lupus nephritis.
Collapse
|
21
|
García-Rodríguez S, Rosal-Vela A, Botta D, Cumba Garcia LM, Zumaquero E, Prados-Maniviesa V, Cerezo-Wallis D, Lo Buono N, Robles-Guirado JÁ, Guerrero S, González-Paredes E, Andrés-León E, Corbí Á, Mack M, Koch-Nolte F, Merino R, Zubiaur M, Lund FE, Sancho J. CD38 promotes pristane-induced chronic inflammation and increases susceptibility to experimental lupus by an apoptosis-driven and TRPM2-dependent mechanism. Sci Rep 2018; 8:3357. [PMID: 29463868 PMCID: PMC5820326 DOI: 10.1038/s41598-018-21337-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 02/02/2018] [Indexed: 12/19/2022] Open
Abstract
In this study, we investigated the role of CD38 in a pristane-induced murine model of lupus. CD38-deficient (Cd38-/-) but not ART2-deficient (Art2-/-) mice developed less severe lupus compared to wild type (WT) mice, and their protective phenotype consisted of (i) decreased IFN-I-stimulated gene expression, (ii) decreased numbers of peritoneal CCR2hiLy6Chi inflammatory monocytes, TNF-α-producing Ly6G+ neutrophils and Ly6Clo monocytes/macrophages, (iii) decreased production of anti-single-stranded DNA and anti-nRNP autoantibodies, and (iv) ameliorated glomerulonephritis. Cd38-/- pristane-elicited peritoneal exudate cells had defective CCL2 and TNF-α secretion following TLR7 stimulation. However, Tnf-α and Cxcl12 gene expression in Cd38-/- bone marrow (BM) cells was intact, suggesting a CD38-independent TLR7/TNF-α/CXCL12 axis in the BM. Chemotactic responses of Cd38-/- Ly6Chi monocytes and Ly6G+ neutrophils were not impaired. However, Cd38-/- Ly6Chi monocytes and Ly6Clo monocytes/macrophages had defective apoptosis-mediated cell death. Importantly, mice lacking the cation channel TRPM2 (Trpm2-/-) exhibited very similar protection, with decreased numbers of PECs, and apoptotic Ly6Chi monocytes and Ly6Clo monocytes/macrophages compared to WT mice. These findings reveal a new role for CD38 in promoting aberrant inflammation and lupus-like autoimmunity via an apoptosis-driven mechanism. Furthermore, given the implications of CD38 in the activation of TRPM2, our data suggest that CD38 modulation of pristane-induced apoptosis is TRPM2-dependent.
Collapse
Affiliation(s)
| | - Antonio Rosal-Vela
- Department of Cellular Biology and Immunology, IPBLN-CSIC, Granada, Spain
| | - Davide Botta
- Department of Microbiology, UAB, Birmingham, Alabama, USA
| | - Luz M Cumba Garcia
- Department of Cellular Biology and Immunology, IPBLN-CSIC, Granada, Spain
- Immunology Graduate Program, Mayo Clinic, Rochester, MN, USA
| | | | | | - Daniela Cerezo-Wallis
- Department of Cellular Biology and Immunology, IPBLN-CSIC, Granada, Spain
- Melanoma Group, CNIO, Madrid, Spain
| | - Nicola Lo Buono
- Department of Cellular Biology and Immunology, IPBLN-CSIC, Granada, Spain
- Laboratory of Immune-mediated Diseases, San Raffaele Diabetes Research Institute (DRI), Milano, Italy
| | | | | | | | | | - Ángel Corbí
- Department of Molecular Microbiology and Infection Biology, CIB-CSIC, Madrid, Spain
| | - Matthias Mack
- Department of Internal Medicine II, Nephrology, Regensburg University Medical Center, Regensburg, Germany
| | - Friedrich Koch-Nolte
- Institute of Immunology, University Medical Center Eppendorf-Hamburg, Hamburg, Germany
| | - Ramón Merino
- Department of Molecular and Cellular Signalling, IBBTEC-CSIC-UC, Santander, Spain
| | - Mercedes Zubiaur
- Department of Cellular Biology and Immunology, IPBLN-CSIC, Granada, Spain
| | - Frances E Lund
- Department of Microbiology, UAB, Birmingham, Alabama, USA
| | - Jaime Sancho
- Department of Cellular Biology and Immunology, IPBLN-CSIC, Granada, Spain.
| |
Collapse
|
22
|
Pellefigues C, Dema B, Lamri Y, Saidoune F, Chavarot N, Lohéac C, Pacreau E, Dussiot M, Bidault C, Marquet F, Jablonski M, Chemouny JM, Jouan F, Dossier A, Chauveheid MP, Gobert D, Papo T, Karasuyama H, Sacré K, Daugas E, Charles N. Prostaglandin D 2 amplifies lupus disease through basophil accumulation in lymphoid organs. Nat Commun 2018; 9:725. [PMID: 29463843 PMCID: PMC5820278 DOI: 10.1038/s41467-018-03129-8] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 01/22/2018] [Indexed: 01/30/2023] Open
Abstract
In systemic lupus erythematosus (SLE), autoantibody production can lead to kidney damage and failure, known as lupus nephritis. Basophils amplify the synthesis of autoantibodies by accumulating in secondary lymphoid organs. Here, we show a role for prostaglandin D2 (PGD2) in the pathophysiology of SLE. Patients with SLE have increased expression of PGD2 receptors (PTGDR) on blood basophils and increased concentration of PGD2 metabolites in plasma. Through an autocrine mechanism dependent on both PTGDRs, PGD2 induces the externalization of CXCR4 on basophils, both in humans and mice, driving accumulation in secondary lymphoid organs. Although PGD2 can accelerate basophil-dependent disease, antagonizing PTGDRs in mice reduces lupus-like disease in spontaneous and induced mouse models. Our study identifies the PGD2/PTGDR axis as a ready-to-use therapeutic modality in SLE.
Collapse
MESH Headings
- Adult
- Animals
- Basophils/immunology
- Female
- Humans
- Lupus Erythematosus, Systemic/blood
- Lupus Erythematosus, Systemic/immunology
- Lymphatic System/immunology
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Middle Aged
- Prostaglandin D2/blood
- Prostaglandin D2/immunology
- Receptors, CXCR4/blood
- Receptors, CXCR4/immunology
- Receptors, Immunologic/blood
- Receptors, Immunologic/immunology
- Receptors, Prostaglandin/blood
- Receptors, Prostaglandin/immunology
- Signal Transduction/immunology
- Young Adult
Collapse
Affiliation(s)
- Christophe Pellefigues
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS ERL8252, Sorbonne Paris Cité, Faculté de Médecine site Bichat, Laboratoire d'Excellence Inflamex, DHU FIRE, Université Paris Diderot, 16 rue Henri Huchard, 75018, Paris, France
| | - Barbara Dema
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS ERL8252, Sorbonne Paris Cité, Faculté de Médecine site Bichat, Laboratoire d'Excellence Inflamex, DHU FIRE, Université Paris Diderot, 16 rue Henri Huchard, 75018, Paris, France
| | - Yasmine Lamri
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS ERL8252, Sorbonne Paris Cité, Faculté de Médecine site Bichat, Laboratoire d'Excellence Inflamex, DHU FIRE, Université Paris Diderot, 16 rue Henri Huchard, 75018, Paris, France
| | - Fanny Saidoune
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS ERL8252, Sorbonne Paris Cité, Faculté de Médecine site Bichat, Laboratoire d'Excellence Inflamex, DHU FIRE, Université Paris Diderot, 16 rue Henri Huchard, 75018, Paris, France
| | - Nathalie Chavarot
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS ERL8252, Sorbonne Paris Cité, Faculté de Médecine site Bichat, Laboratoire d'Excellence Inflamex, DHU FIRE, Université Paris Diderot, 16 rue Henri Huchard, 75018, Paris, France
| | - Charlotte Lohéac
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS ERL8252, Sorbonne Paris Cité, Faculté de Médecine site Bichat, Laboratoire d'Excellence Inflamex, DHU FIRE, Université Paris Diderot, 16 rue Henri Huchard, 75018, Paris, France
| | - Emeline Pacreau
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS ERL8252, Sorbonne Paris Cité, Faculté de Médecine site Bichat, Laboratoire d'Excellence Inflamex, DHU FIRE, Université Paris Diderot, 16 rue Henri Huchard, 75018, Paris, France
| | - Michael Dussiot
- INSERM UMR 1163, Laboratory of Cellular and Molecular Mechanisms of Hematological Disorders and Therapeutic Implications, Institut Imagine, 24 boulevard du Montparnasse, 75015, Paris, France
| | - Caroline Bidault
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS ERL8252, Sorbonne Paris Cité, Faculté de Médecine site Bichat, Laboratoire d'Excellence Inflamex, DHU FIRE, Université Paris Diderot, 16 rue Henri Huchard, 75018, Paris, France
| | - Florian Marquet
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS ERL8252, Sorbonne Paris Cité, Faculté de Médecine site Bichat, Laboratoire d'Excellence Inflamex, DHU FIRE, Université Paris Diderot, 16 rue Henri Huchard, 75018, Paris, France
| | - Mathieu Jablonski
- Department of Nephrology, Hôpital Bichat, Assistance Publique-Hôpitaux de Paris, Faculté de Médecine site Bichat, DHU FIRE, Université Paris Diderot, 46 rue Henri Huchard, 75018, Paris, France
| | - Jonathan M Chemouny
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS ERL8252, Sorbonne Paris Cité, Faculté de Médecine site Bichat, Laboratoire d'Excellence Inflamex, DHU FIRE, Université Paris Diderot, 16 rue Henri Huchard, 75018, Paris, France
- Department of Nephrology, Hôpital Bichat, Assistance Publique-Hôpitaux de Paris, Faculté de Médecine site Bichat, DHU FIRE, Université Paris Diderot, 46 rue Henri Huchard, 75018, Paris, France
| | - Fanny Jouan
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS ERL8252, Sorbonne Paris Cité, Faculté de Médecine site Bichat, Laboratoire d'Excellence Inflamex, DHU FIRE, Université Paris Diderot, 16 rue Henri Huchard, 75018, Paris, France
- Department of Internal Medicine, Hôpital Bichat, Assistance Publique-Hôpitaux de Paris, Faculté de Médecine site Bichat, DHU FIRE, Université Paris Diderot, 46 rue Henri Huchard, 75018, Paris, France
| | - Antoine Dossier
- Department of Internal Medicine, Hôpital Bichat, Assistance Publique-Hôpitaux de Paris, Faculté de Médecine site Bichat, DHU FIRE, Université Paris Diderot, 46 rue Henri Huchard, 75018, Paris, France
| | - Marie-Paule Chauveheid
- Department of Internal Medicine, Hôpital Bichat, Assistance Publique-Hôpitaux de Paris, Faculté de Médecine site Bichat, DHU FIRE, Université Paris Diderot, 46 rue Henri Huchard, 75018, Paris, France
| | - Delphine Gobert
- Department of Internal Medicine, Hôpital Bichat, Assistance Publique-Hôpitaux de Paris, Faculté de Médecine site Bichat, DHU FIRE, Université Paris Diderot, 46 rue Henri Huchard, 75018, Paris, France
| | - Thomas Papo
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS ERL8252, Sorbonne Paris Cité, Faculté de Médecine site Bichat, Laboratoire d'Excellence Inflamex, DHU FIRE, Université Paris Diderot, 16 rue Henri Huchard, 75018, Paris, France
- Department of Internal Medicine, Hôpital Bichat, Assistance Publique-Hôpitaux de Paris, Faculté de Médecine site Bichat, DHU FIRE, Université Paris Diderot, 46 rue Henri Huchard, 75018, Paris, France
| | - Hajime Karasuyama
- Department of Immune Regulation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8510, Japan
| | - Karim Sacré
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS ERL8252, Sorbonne Paris Cité, Faculté de Médecine site Bichat, Laboratoire d'Excellence Inflamex, DHU FIRE, Université Paris Diderot, 16 rue Henri Huchard, 75018, Paris, France
- Department of Internal Medicine, Hôpital Bichat, Assistance Publique-Hôpitaux de Paris, Faculté de Médecine site Bichat, DHU FIRE, Université Paris Diderot, 46 rue Henri Huchard, 75018, Paris, France
| | - Eric Daugas
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS ERL8252, Sorbonne Paris Cité, Faculté de Médecine site Bichat, Laboratoire d'Excellence Inflamex, DHU FIRE, Université Paris Diderot, 16 rue Henri Huchard, 75018, Paris, France
- Department of Nephrology, Hôpital Bichat, Assistance Publique-Hôpitaux de Paris, Faculté de Médecine site Bichat, DHU FIRE, Université Paris Diderot, 46 rue Henri Huchard, 75018, Paris, France
| | - Nicolas Charles
- Centre de Recherche sur l'Inflammation, INSERM UMR1149, CNRS ERL8252, Sorbonne Paris Cité, Faculté de Médecine site Bichat, Laboratoire d'Excellence Inflamex, DHU FIRE, Université Paris Diderot, 16 rue Henri Huchard, 75018, Paris, France.
| |
Collapse
|
23
|
Han S, Zhuang H, Shumyak S, Wu J, Xie C, Li H, Yang LJ, Reeves WH. Liver X Receptor Agonist Therapy Prevents Diffuse Alveolar Hemorrhage in Murine Lupus by Repolarizing Macrophages. Front Immunol 2018; 9:135. [PMID: 29456535 PMCID: PMC5801423 DOI: 10.3389/fimmu.2018.00135] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 01/16/2018] [Indexed: 12/20/2022] Open
Abstract
The generation of CD138+ phagocytic macrophages with an alternative (M2) phenotype that clear apoptotic cells from tissues is defective in lupus. Liver X receptor-alpha (LXRα) is an oxysterol-regulated transcription factor that promotes reverse cholesterol transport and alternative (M2) macrophage activation. Conversely, hypoxia-inducible factor 1-α (HIF1α) promotes classical (M1) macrophage activation. The objective of this study was to see if lupus can be treated by enhancing the generation of M2-like macrophages using LXR agonists. Peritoneal macrophages from pristane-treated mice had an M1 phenotype, high HIFα-regulated phosphofructokinase and TNFα expression (quantitative PCR, flow cytometry), and low expression of the LXRα-regulated gene ATP binding cassette subfamily A member 1 (Abca1) and Il10 vs. mice treated with mineral oil, a control inflammatory oil that does not cause lupus. Glycolytic metabolism (extracellular flux assays) and Hif1a expression were higher in pristane-treated mice (M1-like) whereas oxidative metabolism and LXRα expression were higher in mineral oil-treated mice (M2-like). Similarly, lupus patients’ monocytes exhibited low LXRα/ABCA1 and high HIF1α vs. controls. The LXR agonist T0901317 inhibited type I interferon and increased ABCA1 in lupus patients’ monocytes and in murine peritoneal macrophages. In vivo, T0901317 induced M2-like macrophage polarization and protected mice from diffuse alveolar hemorrhage (DAH), an often fatal complication of lupus. We conclude that end-organ damage (DAH) in murine lupus can be prevented using an LXR agonist to correct a macrophage differentiation abnormality characteristic of lupus. LXR agonists also decrease inflammatory cytokine production by human lupus monocytes, suggesting that these agents may be have a role in the pharmacotherapy of lupus.
Collapse
Affiliation(s)
- Shuhong Han
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Florida, Gainesville, FL, United States
| | - Haoyang Zhuang
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Florida, Gainesville, FL, United States
| | - Stepan Shumyak
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Florida, Gainesville, FL, United States
| | - Jingfan Wu
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Florida, Gainesville, FL, United States
| | - Chao Xie
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, United States
| | - Hui Li
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, United States
| | - Li-Jun Yang
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, United States
| | - Westley H Reeves
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Florida, Gainesville, FL, United States
| |
Collapse
|
24
|
Kang C, Zhang Q, Zhu W, Cai C, Sun X, Jin M. Transcription analysis of the responses of porcine heart to Erysipelothrix rhusiopathiae. PLoS One 2017; 12:e0185548. [PMID: 28976997 PMCID: PMC5627920 DOI: 10.1371/journal.pone.0185548] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 09/14/2017] [Indexed: 12/11/2022] Open
Abstract
Erysipelothrix rhusiopathiae (E. rhusiopathiae) is the causative agent of swine erysipelas. This microbe has caused great economic losses in China and in other countries. In this study, high-throughput cDNA microarray assays were employed to evaluate the host responses of porcine heart to E. rhusiopathiae and to gain additional insights into its pathogenesis. A total of 394 DE transcripts were detected in the active virulent E. rhusiopathiae infection group compared with the PBS group at 4 days post-infection. Moreover, 262 transcripts were upregulated and 132 transcripts were downregulated. Differentially expressed genes were involved in many vital functional classes, including inflammatory and immune responses, signal transduction, apoptosis, transport, protein phosphorylation and dephosphorylation, metabolic processes, chemotaxis, cell adhesion, and innate immune responses. Pathway analysis demonstrated that the most significant pathways were Chemokine signaling pathway, NF-kappa B signaling pathway, TLR pathway, CAMs, systemic lupus erythematosus, chemokine signaling pathway, Cytokine–cytokine receptor interaction, PI3K-Akt signaling pathway, Phagosome, HTLV-I infection, Measles, Rheumatoid arthritis and natural-killer-cell-mediated cytotoxicity. The reliability of our microarray data was verified by performing quantitative real-time PCR. This study is the first to document the response of piglet heart to E. rhusiopathiae infection. The observed gene expression profile could help screen potential host agents that can reduce the prevalence of E. rhusiopathiae. The profile might also provide insights into the underlying pathological changes that occur in pigs infected with E. rhusiopathiae.
Collapse
Affiliation(s)
- Chao Kang
- Unit of Animal Infectious Diseases, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, P.R. China
| | - Qiang Zhang
- Unit of Animal Infectious Diseases, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, P.R. China
| | - Weifeng Zhu
- Unit of Animal Infectious Diseases, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, P.R. China
| | - Chengzhi Cai
- Unit of Animal Infectious Diseases, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, P.R. China
| | - Xiaomei Sun
- College of Veterinary Medicine, Huazhong Agricultural University, P.R. China, Wuhan, Hubei, P.R. China
| | - Meilin Jin
- Unit of Animal Infectious Diseases, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, P.R. China
- College of Veterinary Medicine, Huazhong Agricultural University, P.R. China, Wuhan, Hubei, P.R. China
- * E-mail:
| |
Collapse
|
25
|
Freitas EC, de Oliveira MS, Monticielo OA. Pristane-induced lupus: considerations on this experimental model. Clin Rheumatol 2017; 36:2403-2414. [PMID: 28879482 DOI: 10.1007/s10067-017-3811-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 08/20/2017] [Accepted: 08/28/2017] [Indexed: 10/18/2022]
Abstract
Systemic lupus erythematosus (SLE) is a multifactorial, autoimmune inflammatory disease with pleomorphic clinical manifestations involving different organs and tissues. The etiology of this disease has been associated with a dysfunctional response of B and T lymphocytes against environmental stimuli in individuals genetically susceptible to SLE, which determines an immune response against different autoantigens and, consequently, tissue damage. The study of different murine models has provided a better understanding of these autoimmune phenomena. This review primarily focuses on that has been learned from the pristane-induced lupus (PIL) model and how this model can be used to supplement recent advances in understanding the pathogenesis of SLE. We also consider both current and future therapies for this disease. The PubMed, SciELO, and Embase databases were searched for relevant articles published from 1950 to 2016. PIL has been shown to be a useful tool for understanding the multiple mechanisms involved in systemic autoimmunity. In addition, it can be considered an efficient model to evaluate the environmental contributions and interferon signatures present in patients with SLE.
Collapse
Affiliation(s)
- Eduarda Correa Freitas
- Laboratory of Autoimmune Diseases, Division of Rheumatology, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2350, room 645, Porto Alegre, 90035-003, Brazil
| | - Mayara Souza de Oliveira
- Laboratory of Autoimmune Diseases, Division of Rheumatology, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2350, room 645, Porto Alegre, 90035-003, Brazil
| | - Odirlei André Monticielo
- Laboratory of Autoimmune Diseases, Division of Rheumatology, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2350, room 645, Porto Alegre, 90035-003, Brazil.
| |
Collapse
|
26
|
Inflammation: a key regulator of hematopoietic stem cell fate in health and disease. Blood 2017; 130:1693-1698. [PMID: 28874349 DOI: 10.1182/blood-2017-06-780882] [Citation(s) in RCA: 242] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 09/04/2017] [Indexed: 12/16/2022] Open
Abstract
Hematopoietic stem cells (HSCs) are responsible for lifelong production of blood cells. At the same time, they must respond rapidly to acute needs such as infection or injury. Significant interest has emerged in how inflammation regulates HSC fate and how it affects the long-term functionality of HSCs and the blood system as a whole. Here we detail recent advances and unanswered questions at the intersection between inflammation and HSC biology in the contexts of development, aging, and hematological malignancy.
Collapse
|
27
|
Zhuang H, Han S, Li Y, Kienhöfer D, Lee P, Shumyak S, Meyerholz R, Rosadzinski K, Rosner D, Chan A, Xu Y, Segal M, Sobel E, Yang LJ, Hoffmann MH, Reeves WH. A Novel Mechanism for Generating the Interferon Signature in Lupus: Opsonization of Dead Cells by Complement and IgM. Arthritis Rheumatol 2017; 68:2917-2928. [PMID: 27274010 DOI: 10.1002/art.39781] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 06/01/2016] [Indexed: 01/05/2023]
Abstract
OBJECTIVE In vitro studies suggest that the type I interferon (IFN) signature seen in most lupus patients results from Fcγ receptor-mediated uptake of nucleic acid-containing immune complexes by plasmacytoid dendritic cells and engagement of endosomal Toll-like receptors. The aim of this study was to reexamine the pathogenesis of the IFN signature in vivo. METHODS Lupus was induced in mice by injecting pristane. Some mice were treated with normal immunoglobulin or with cobra venom factor to deplete complement. The IFN signature was evaluated by polymerase chain reaction. The IFN signature also was determined in C4-deficient patients and control subjects. RESULTS Wild-type C57BL/6 mice with pristane-induced lupus developed a strong IFN signature, which was absent in immunoglobulin-deficient (μMT), C3-/- , and CD18-/- mice. Intravenous infusion of normal IgM, but not IgG, restored the IFN signature in μMT mice, and the IFN signature in wild-type mice was inhibited by depleting complement, suggesting that opsonization by IgM and complement is involved in IFN production. Consistent with that possibility, the levels of "natural" IgM antibodies reactive with dead cells were increased in pristane-treated wild-type mice compared with untreated controls, and in vivo phagocytosis of dead cells was impaired in C3-deficient mice. To examine the clinical relevance of these findings, we identified 10 C4-deficient patients with lupus-like disease and compared them with 152 C4-intact patients and 21 healthy controls. In comparison with C4-intact patients, C4-deficient patients had a different clinical/serologic phenotype and lacked the IFN signature. CONCLUSION These studies define previously unrecognized roles of natural IgM, complement, and complement receptors in generating the IFN signature in lupus.
Collapse
Affiliation(s)
| | | | - Yi Li
- University of Florida, Gainesville
| | | | - Pui Lee
- Boston Children's Hospital, Boston, Massachusetts
| | | | | | | | | | | | - Yuan Xu
- University of Florida, Gainesville
| | | | | | | | | | | |
Collapse
|
28
|
Han S, Zhuang H, Shumyak S, Wu J, Li H, Yang LJ, Reeves WH. A Novel Subset of Anti-Inflammatory CD138 + Macrophages Is Deficient in Mice with Experimental Lupus. THE JOURNAL OF IMMUNOLOGY 2017; 199:1261-1274. [PMID: 28696256 DOI: 10.4049/jimmunol.1700099] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 06/12/2017] [Indexed: 12/13/2022]
Abstract
Dead cells accumulating in the tissues may contribute to chronic inflammation. We examined the cause of impaired apoptotic cell clearance in human and murine lupus. Dead cells accumulated in bone marrow from lupus patients but not from nonautoimmune patients undergoing myeloablation, where they were efficiently removed by macrophages (MΦ). Impaired apoptotic cell uptake by MΦ also was seen in mice treated i.p. with pristane (develop lupus) but not mineral oil (MO) (do not develop lupus). The inflammatory response to both pristane and MO rapidly depleted resident (Tim4+) large peritoneal MΦ. The peritoneal exudate of pristane-treated mice contained mainly Ly6Chi inflammatory monocytes; whereas in MO-treated mice, it consisted predominantly of a novel subset of highly phagocytic MΦ resembling small peritoneal MΦ (SPM) that expressed CD138+ and the scavenger receptor Marco. Treatment with anti-Marco-neutralizing Abs and the class A scavenger receptor antagonist polyinosinic acid inhibited phagocytosis of apoptotic cells by CD138+ MΦ. CD138+ MΦ expressed IL-10R, CD206, and CCR2 but little TNF-α or CX3CR1. They also expressed high levels of activated CREB, a transcription factor implicated in generating alternatively activated MΦ. Similar cells were identified in the spleen and lung of MO-treated mice and also were induced by LPS. We conclude that highly phagocytic, CD138+ SPM-like cells with an anti-inflammatory phenotype may promote the resolution of inflammation in lupus and infectious diseases. These SPM-like cells are not restricted to the peritoneum and may help clear apoptotic cells from tissues such as the lung, helping to prevent chronic inflammation.
Collapse
Affiliation(s)
- Shuhong Han
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Florida, Gainesville, FL 32610; and
| | - Haoyang Zhuang
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Florida, Gainesville, FL 32610; and
| | - Stepan Shumyak
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Florida, Gainesville, FL 32610; and
| | - Jingfan Wu
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Florida, Gainesville, FL 32610; and
| | - Hui Li
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Li-Jun Yang
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Westley H Reeves
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Florida, Gainesville, FL 32610; and
| |
Collapse
|
29
|
Zhuang H, Han S, Lee PY, Khaybullin R, Shumyak S, Lu L, Chatha A, Afaneh A, Zhang Y, Xie C, Nacionales D, Moldawer L, Qi X, Yang LJ, Reeves WH. Pathogenesis of Diffuse Alveolar Hemorrhage in Murine Lupus. Arthritis Rheumatol 2017; 69:1280-1293. [PMID: 28217966 DOI: 10.1002/art.40077] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 02/14/2017] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Diffuse alveolar hemorrhage (DAH) in lupus patients confers >50% mortality, and the cause is unknown. We undertook this study to examine the pathogenesis of DAH in C57BL/6 mice with pristane-induced lupus, a model of human lupus-associated DAH. METHODS Clinical/pathologic and immunologic manifestations of DAH in pristane-induced lupus were compared with those of DAH in humans. Tissue distribution of pristane was examined by mass spectrometry. Cell types responsible for disease were determined by in vivo depletion using clodronate liposomes and antineutrophil monoclonal antibodies (anti-Ly-6G). The effect of complement depletion with cobra venom factor (CVF) was examined. RESULTS After intraperitoneal injection, pristane migrated to the lung, causing cell death, small vessel vasculitis, and alveolar hemorrhage similar to that seen in DAH in humans. B cell-deficient mice were resistant to induction of DAH, but susceptibility was restored by infusing IgM. C3-/- and CD18-/- mice were also resistant, and DAH was prevented in wild-type mice by CVF. Induction of DAH was independent of Toll-like receptors, inflammasomes, and inducible nitric oxide. Mortality was increased in interleukin-10 (IL-10)-deficient mice, and pristane treatment decreased IL-10 receptor expression in monocytes and STAT-3 phosphorylation in lung macrophages. In vivo neutrophil depletion was not protective, while treatment with clodronate liposomes prevented DAH, which suggests that macrophage activation is central to DAH pathogenesis. CONCLUSION The pathogenesis of DAH involves opsonization of dead cells by natural IgM and complement followed by complement receptor-mediated lung inflammation. The disease is macrophage dependent, and IL-10 is protective. Complement inhibition and/or macrophage-targeted therapies may reduce mortality in lupus-associated DAH.
Collapse
Affiliation(s)
| | | | - Pui Y Lee
- Boston Children's Hospital, Boston, Massachusetts
| | | | | | - Li Lu
- University of Florida, Gainesville
| | | | | | | | - Chao Xie
- University of Florida, Gainesville
| | | | | | - Xin Qi
- University of Florida, Gainesville
| | | | | |
Collapse
|
30
|
Abstract
Finding better treatments for lupus nephritis requires an understanding of the pathogenesis of the causative systemic disease, how this leads to kidney disease, and how lupus nephritis progresses to end-stage kidney disease. Here, we provide a brief conceptual overview on the related pathomechanisms. As a main focus we discuss in detail the roles of neutrophils, dendritic cells, Toll-like receptors, and interferon-α in the pathogenesis of lupus nephritis by separately reviewing their roles in extrarenal systemic autoimmunity and in intrarenal inflammation and immunopathology.
Collapse
|
31
|
Abstract
PURPOSE OF REVIEW Toll-like receptors (TLRs) are novel and promising targets for allergen immunotherapy. Bench studies suggest that TLR agonists reduce Th2 responses and ameliorate airway hyper-responsiveness. In addition, clinical trials are at initial phases to evaluate the safety and efficacy of TLR agonists for the allergen immunotherapy of patients with allergic rhinitis and asthma. (Figure is included in full-text article.) RECENT FINDINGS To date, two allergy vaccine-containing TLR agonists have been investigated in clinical trials; Pollinex Quattro and AIC. The former contains monophosphoryl lipid, a TLR4 agonist and the latter contains, CpG motifs activating the TLR9 cascade. Preseasonal subcutaneous injection of both of these allergy vaccines has been safe and efficacious in control of nasal symptoms of patients with allergic rhinitis. CRX-675 (a TLR4 agonist), AZD8848 (a TLR7 agonist), VTX-1463 (a TLR8 agonist) and 1018 ISS and QbG10 (TLR9 agonists) are currently in clinical development for allergic rhinitis and asthma. SUMMARY TLR agonists herald promising results for allergen immunotherapy of patients with allergic rhinitis and asthma. Future research should be directed at utilizing these agents for immunotherapy of food allergy (for instance, peanut allergy) as well.
Collapse
|
32
|
Lorenz G, Lech M, Anders HJ. Toll-like receptor activation in the pathogenesis of lupus nephritis. Clin Immunol 2016; 185:86-94. [PMID: 27423476 DOI: 10.1016/j.clim.2016.07.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 07/11/2016] [Accepted: 07/12/2016] [Indexed: 12/29/2022]
Abstract
The pathogenesis of systemic lupus erythematosus (SLE) and lupus nephritis is complex but no longer enigmatic. Much progress has been made to on the polygenetic origin of lupus in identifying gene variants that permit the loss of tolerance against nuclear autoantigens. Along the same line in about 50% of lupus patients additional genetic weaknesses promote immune complex glomerulonephritis and filtration barrier dysfunction. Here we briefly summarize the pathogenesis of SLE with a focus on loss of tolerance and the role of toll-like receptors in the "pseudo"-antiviral immunity concept of systemic lupus. In addition, we discuss the local role of Toll-like receptors in intrarenal inflammation and kidney remodeling.
Collapse
Affiliation(s)
- Georg Lorenz
- Abteilung für Nephrologie, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675 Munich, Germany
| | - Maciej Lech
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig Maximilians Universität München, Munich, Germany
| | - Hans-Joachim Anders
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig Maximilians Universität München, Munich, Germany.
| |
Collapse
|
33
|
Abstract
PURPOSE OF REVIEW Recent discoveries implicate neutrophils as important regulators of innate and adaptive immunity and in the development of organ damage in systemic autoimmune diseases, including systemic lupus erythematosus (SLE). RECENT FINDINGS Various putative SLE biomarkers are neutrophil-related, including neutrophil granular proteins and histones undergoing post-translational modifications during neutrophil extracellular trap (NET) formation. In the bone marrow, lupus neutrophils can drive B and T cell abnormalities, at least in part, by their enhanced production of type-I interferons, tumor necrosis factor-alpha (TNFα) and the B-cell stimulating factors B-cell activating factor (BAFF) and a proliferation-inducing ligand (APRIL). Lupus neutrophils and, in particular, lupus low-density granulocytes (a distinct pathogenic subset) display epigenetic modifications and genomic alterations that may be relevant to their deleterious roles in SLE. Proteins and enzymes externalized by lupus NETs can affect vascular health by inducing endothelial apoptosis and oxidizing lipoproteins. Hampering NET formation through peptidylarginine deiminase inhibitors abrogates lupus phenotype and atherosclerosis in murine studies. SUMMARY Recent discoveries support the notion that neutrophils, low-density granulocytes and aberrant NET formation and clearance play important roles in lupus pathogenesis. Future studies should focus on how to selectively target these immunostimulatory pathways in this disease.
Collapse
|
34
|
Weindel CG, Richey LJ, Bolland S, Mehta AJ, Kearney JF, Huber BT. B cell autophagy mediates TLR7-dependent autoimmunity and inflammation. Autophagy 2016; 11:1010-24. [PMID: 26120731 DOI: 10.1080/15548627.2015.1052206] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a heterogeneous autoimmune disease, defined by loss of B cell self-tolerance that results in production of antinuclear antibodies (ANA) and chronic inflammation. While the initiating events in lupus development are not well defined, overexpression of the RNA-recognizing toll-like receptor (TLR)7 has been linked to SLE in humans and mice. We postulated that autophagy plays an essential role in TLR7 activation of B cells for the induction of SLE by delivering RNA ligands to the endosomes, where this innate immune receptor resides. To test this hypothesis, we compared SLE development in Tlr7 transgenic (Tg) mice with or without B cell-specific ablation of autophagy (Cd19-Cre Atg5(f/f)). We observed that in the absence of B cell autophagy the 2 hallmarks of SLE, ANA and inflammation, were eliminated, thus curing these mice of lupus. This was also evident in the significantly extended survival of the autophagy-deficient mice compared to Tlr7.1 Tg mice. Furthermore, glomerulonephritis was ameliorated, and the serum levels of inflammatory cytokines in the knockout (KO) mice were indistinguishable from those of control mice. These data provide direct evidence that B cells require TLR7-dependent priming through an autophagy-dependent mechanism before autoimmunity is induced, thereafter involving many cell types. Surprisingly, hyper-IgM production persisted in Tlr7.1 Tg mice in the absence of autophagy, likely involving a different activation pathway than the production of autoantibodies. Furthermore, these mice still presented with anemia, but responded with a striking increase in extramedullary hematopoiesis (EMH), possibly due to the absence of pro-inflammatory cytokines.
Collapse
Key Words
- ANA, anti-nuclear Ab
- Ab, antibody
- Atg5 KO
- B cells
- B6, C57BL/6J
- BM, bone marrow
- BMD, BM derived
- BMDM, BMD macrophages
- BMDmDCs, BMD myeloid dendritic cells
- BMDpDCs, BMD plasmacytoid dendritic cells
- CFS3, colony stimulating factor 3 (granulocyte)
- CSF2, colony stimulating factor 2 (granulocyte-macrophage)
- DC, dendritic cell
- ELISA, enzyme-linked immunosorbent assay
- ELISpot, enzyme-linked immunospot assay
- EMH, extramedullary hematopoiesis
- FOB, follicular B cells
- GMP, granulocyte-macrophage progenitor
- H&E, hematoxylin and eosin stain
- IFN, interferon
- IHC, immunohistochemistry
- IL, interleukin
- Irf7, interferon regulatory factor 7
- KO, knockout
- LAP, LC3-associated phagocytosis
- LPS, lipopolysaccharide
- MZB, marginal zone B cells
- MZP, marginal zone precursor B cells
- NEAA, nonessential amino acids
- O/N, overnight
- PAS, periodic acid-Schiff
- PC, phosphocholine
- PCV, packed cell volume
- PEMs, peritoneal macrophages
- RBC, red blood cell
- RT, room temperature
- SLE, systemic lupus erythematosus
- T1B, transitional 1 B cells
- TLR, toll-like receptor
- TLR7
- Tg, transgenic
- WT, wild type
- YAA, Y-linked autoimmune accelerator
- autoimmunity
- ds, double stranded
- inflammation
- lupus
- mDC, myeloid DC
- pDC, plasmacytoid DC
- ss, single stranded
Collapse
Affiliation(s)
- Chi G Weindel
- a Graduate Program in Genetics; Sackler School of Graduate Biomedical Sciences; Tufts University School of Medicine ; Boston , MA , USA
| | | | | | | | | | | |
Collapse
|
35
|
Thieblemont N, Wright HL, Edwards SW, Witko-Sarsat V. Human neutrophils in auto-immunity. Semin Immunol 2016; 28:159-73. [DOI: 10.1016/j.smim.2016.03.004] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 03/08/2016] [Accepted: 03/12/2016] [Indexed: 01/06/2023]
|
36
|
Mahajan A, Herrmann M, Muñoz LE. Clearance Deficiency and Cell Death Pathways: A Model for the Pathogenesis of SLE. Front Immunol 2016; 7:35. [PMID: 26904025 PMCID: PMC4745266 DOI: 10.3389/fimmu.2016.00035] [Citation(s) in RCA: 187] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 01/24/2016] [Indexed: 12/21/2022] Open
Abstract
Alterations of cell death pathways, including apoptosis and the neutrophil specific kind of death called NETosis, can represent a potential source of autoantigens. Defects in the clearance of apoptotic cells may be responsible for the initiation of systemic autoimmunity in several chronic inflammatory diseases, including systemic lupus erythematosus (SLE). Autoantigens are released mainly from secondary necrotic cells because of a defective clearance of apoptotic cells or an inefficient degradation of DNA-containing neutrophil extracellular traps (NETs). These modified autoantigens are presented by follicular dendritic cells to autoreactive B cells in germinal centers of secondary lymphoid organs. This results in the loss of self-tolerance and production of autoantibodies, a unifying feature of SLE. Immune complexes (IC) are formed from autoantibodies bound to uncleared cellular debris in blood or tissues. Clearance of IC by blood phagocytes, macrophages, and dendritic cells leads to proinflammatory cytokine secretion. In particular, plasmacytoid dendritic cells produce high amounts of interferon-α upon IC uptake, thereby contributing to the interferon signature of patients with SLE. The clearance of antinuclear IC via Fc-gamma receptors is considered a central event in amplifying inflammatory immune responses in SLE. Along with this, the accumulation of cell remnants represents an initiating event of the etiology, while the subsequent generation of autoantibodies against nuclear antigens (including NETs) results in the perpetuation of inflammation and tissue damage in patients with SLE. Here, we discuss the implications of defective clearance of apoptotic cells and NETs in the development of clinical manifestations in SLE.
Collapse
Affiliation(s)
- Aparna Mahajan
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Department of Internal Medicine 3, Rheumatology and Immunology , Erlangen , Germany
| | - Martin Herrmann
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Department of Internal Medicine 3, Rheumatology and Immunology , Erlangen , Germany
| | - Luis E Muñoz
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Department of Internal Medicine 3, Rheumatology and Immunology , Erlangen , Germany
| |
Collapse
|
37
|
Baum R, Nündel K, Pawaria S, Sharma S, Busto P, Fitzgerald KA, Gravallese EM, Marshak-Rothstein A. Synergy between Hematopoietic and Radioresistant Stromal Cells Is Required for Autoimmune Manifestations of DNase II-/-IFNaR-/- Mice. THE JOURNAL OF IMMUNOLOGY 2016; 196:1348-54. [PMID: 26729810 DOI: 10.4049/jimmunol.1502130] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 11/27/2015] [Indexed: 11/19/2022]
Abstract
Detection of endogenous nucleic acids by cytosolic receptors, dependent on STING, and endosomal sensors, dependent on Unc93b1, can provoke inflammatory responses that contribute to a variety of autoimmune and autoinflammatory diseases. In DNase II-deficient mice, the excessive accrual of undegraded DNA leads to both a STING-dependent inflammatory arthritis and additional Unc93b1-dependent autoimmune manifestations, including splenomegaly, extramedullary hematopoiesis, and autoantibody production. In this study, we use bone marrow chimeras to show that clinical and histological inflammation in the joint depends upon DNase II deficiency in both donor hematopoietic cells and host radioresistant cells. Additional features of autoimmunity in these mice, known to depend on Unc93b1 and therefore endosomal TLRs, also require DNase II deficiency in both donor and host compartments, but only require functional TLRs in the hematopoietic cells. Collectively, our data demonstrate a major role of both stromal and hematopoietic cells in all aspects of DNA-driven autoimmunity. These findings further point to the importance of cytosolic nucleic acid sensors in creating an inflammatory environment that facilitates the development of Unc93b1-dependent autoimmunity.
Collapse
Affiliation(s)
- Rebecca Baum
- Division of Rheumatology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605; and
| | - Kerstin Nündel
- Division of Rheumatology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605; and
| | - Sudesh Pawaria
- Division of Rheumatology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605; and
| | - Shruti Sharma
- Program in Innate Immunity, Division of Infectious Diseases, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605
| | - Patricia Busto
- Division of Rheumatology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605; and
| | - Katherine A Fitzgerald
- Program in Innate Immunity, Division of Infectious Diseases, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605
| | - Ellen M Gravallese
- Division of Rheumatology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605; and
| | - Ann Marshak-Rothstein
- Division of Rheumatology, Department of Medicine, University of Massachusetts Medical School, Worcester, MA 01605; and
| |
Collapse
|
38
|
Han S, Zhuang H, Xu Y, Lee P, Li Y, Wilson JC, Vidal O, Choi HS, Sun Y, Yang LJ, Reeves WH. Maintenance of autoantibody production in pristane-induced murine lupus. Arthritis Res Ther 2015; 17:384. [PMID: 26717913 PMCID: PMC4718029 DOI: 10.1186/s13075-015-0886-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Accepted: 12/03/2015] [Indexed: 11/30/2022] Open
Abstract
Background Pristane-treated mice chronically produce high levels of anti-ribonucleoprotein/Smith (anti-Sm/RNP) and other lupus autoantibodies. The present study addressed how these autoantibody levels are maintained over time. Methods Lupus was induced in BALB/c mice using pristane. Naïve B cells, switched memory B cells, switched plasmablasts, and plasma cells were flow-sorted and total IgG and anti-U1A (RNP) autoantibodies were determined with ELISA. Results B cells with a switched “memory-like” (CD19+CD138−IgM−IgD−) (sMB) phenotype were increased in pristane-treated mice and expressed higher levels of Toll like receptor 7 (Tlr7) than cells with this phenotype from untreated mice. Flow-sorted sMB cells from pristane-treated mice did not secrete IgG spontaneously, but were hyper-responsive to both synthetic (R848) and natural (apoptotic cells) TLR7 ligands, resulting in increased IgG production in vitro. The flow-sorted sMB cells also could be driven by R848 to produce IgG anti-U1A autoantibodies. Production of IgG was strongly inhibited by both JSH-23 and SB203580, suggesting that the canonical NFκB and p38 MAPK pathways, respectively, contribute to the TLR7 ligand hyper-responsiveness of sMB from pristane-treated mice. Conclusions The switched memory B cell subset from pristane-treated mice is expanded and shows an increased propensity to undergo terminal (plasma cell) differentiation in response to synthetic and natural TLR7 ligands. The data suggest that the decreased clearance of apoptotic cells characteristic of pristane-treated mice might help maintain high serum levels of anti-RNP/Sm autoantibodies. Electronic supplementary material The online version of this article (doi:10.1186/s13075-015-0886-9) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Shuhong Han
- Department of Medicine, Division of Rheumatology & Clinical Immunology, University of Florida, 1600 Archer Road, Gainesville, FL, 32610-0275, USA.
| | - Haoyang Zhuang
- Department of Medicine, Division of Rheumatology & Clinical Immunology, University of Florida, 1600 Archer Road, Gainesville, FL, 32610-0275, USA.
| | - Yuan Xu
- Department of Medicine, Division of Rheumatology & Clinical Immunology, University of Florida, 1600 Archer Road, Gainesville, FL, 32610-0275, USA.
| | - Pui Lee
- Department of Medicine, Division of Rheumatology & Clinical Immunology, University of Florida, 1600 Archer Road, Gainesville, FL, 32610-0275, USA. .,Current Address: Boston Children's Hospital, 300 Longwood Ave, Boston, MA, 02115, USA.
| | - Yi Li
- Department of Medicine, Division of Rheumatology & Clinical Immunology, University of Florida, 1600 Archer Road, Gainesville, FL, 32610-0275, USA.
| | - Joseph C Wilson
- Department of Medicine, Division of Rheumatology & Clinical Immunology, University of Florida, 1600 Archer Road, Gainesville, FL, 32610-0275, USA.
| | - Osvaldo Vidal
- College of Pharmacy, University of Florida, Student Service Center, HPNP Complex, PO Box 100495, Gainesville, FL, 32610-0495, USA.
| | - Hong Seok Choi
- Department of Molecular genetics and Microbiology, University of Florida, PO Box 100221, Gainesville, FL, 32610-0221, USA.
| | - Yu Sun
- Department of Pathology and Laboratory Medicine, University of Florida, 1395 Center Dr., Gainesville, FL, 32610-0495, USA. .,Current Address: Qilu Hospital of Shandong University, Jinan, 250012, PR China.
| | - Li-Jun Yang
- Department of Pathology and Laboratory Medicine, University of Florida, 1395 Center Dr., Gainesville, FL, 32610-0495, USA.
| | - Westley H Reeves
- Department of Medicine, Division of Rheumatology & Clinical Immunology, University of Florida, 1600 Archer Road, Gainesville, FL, 32610-0275, USA. .,Department of Pathology and Laboratory Medicine, University of Florida, 1395 Center Dr., Gainesville, FL, 32610-0495, USA.
| |
Collapse
|
39
|
The Spleen Plays No Role in Nephrotoxic Serum Nephritis, but Constitutes a Place of Compensatory Haematopoiesis. PLoS One 2015; 10:e0135087. [PMID: 26247770 PMCID: PMC4527588 DOI: 10.1371/journal.pone.0135087] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 07/17/2015] [Indexed: 02/06/2023] Open
Abstract
Background The spleen has been implicated in the pathogenesis of immune-complex glomerulonephritis by initiating and resolving adaptive immune responses. Thus, we aimed to evaluate the role of the spleen in experimental nephrotoxic serum nephritis (NTS). Methods In order to accelerate the disease, animals were subjected to NTS by preimmunizing male C57BL/6J mice with rabbit IgG three days before injecting the rabbit anti-glomerular basement antiserum, or were immunized only. A group underwent splenectomy before NTS induction. Results We observed enlargement of the spleen with a maximum at 14 days after NTS induction or immunization only. Splenectomized mice were found to develop albuminuria and renal histological changes comparable to sham-operated controls. Nevertheless, anaemia was aggravated in mice after splenectomy. During the course of NTS, we detected CD41+ megakaryocytes and Ter119+ erythroid precursor cells in the spleen of mice with NTS and of immunized mice. Ter119+Cxcr4+ cells and the binding partner Cxcl12 increased in the spleen, and decreased in the bone marrow. This was accompanied by a significant systemic increase of interferon-gamma in the serum. Conclusions In summary, splenectomy does not influence the course of NTS per se, but is involved in concomitant anaemia. Extramedullary haematopoiesis in the spleen is probably facilitated through the migration of Cxcr4+ erythroid precursor cells from the bone marrow to the spleen via a Cxcl12 gradient and likely arises from the suppressive capacity of chronic inflammation on the bone marrow.
Collapse
|
40
|
Zhuang H, Szeto C, Han S, Yang L, Reeves WH. Animal Models of Interferon Signature Positive Lupus. Front Immunol 2015; 6:291. [PMID: 26097482 PMCID: PMC4456949 DOI: 10.3389/fimmu.2015.00291] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 05/20/2015] [Indexed: 12/31/2022] Open
Abstract
Human lupus is strongly associated with a gene expression signature characterized by over-expression of Type I interferon-regulated genes. A strong interferon signature generally is not seen in the standard mouse models of lupus, despite considerable evidence for the involvement of toll-like receptor-driven interferon production. In contrast, pristane-induced lupus exhibits a prominent TLR7-dependent interferon signature. Importantly, genetic disorders with dysregulated interferon production in both human beings and mice cause severe autoinflammatory diseases but not the typical manifestations of lupus, suggesting that interferon over-production is insufficient to cause systemic lupus erythematosus itself. Single-gene models in mice suggest that lupus-like disease may result from abnormalities in B-cell activation and the clearance of dead cells. Pristane may mimic human systemic lupus erythematosus by causing synergistic abnormalities in interferon production along with defective clearance of apoptotic cells and over-active B-cell signaling.
Collapse
Affiliation(s)
- Haoyang Zhuang
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Florida , Gainesville, FL , USA
| | - Christopher Szeto
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Florida , Gainesville, FL , USA
| | - Shuhong Han
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Florida , Gainesville, FL , USA
| | - Lijun Yang
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida , Gainesville, FL , USA
| | - Westley H Reeves
- Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Florida , Gainesville, FL , USA
| |
Collapse
|
41
|
Xu Y, Zhuang H, Han S, Liu C, Wang H, Mathews CE, Massini J, Yang L, Reeves WH. Mechanisms of tumor necrosis factor α antagonist-induced lupus in a murine model. Arthritis Rheumatol 2015; 67:225-37. [PMID: 25252121 DOI: 10.1002/art.38882] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 09/11/2014] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Tumor necrosis factor α (TNFα) antagonists are effective for treating rheumatoid arthritis and other inflammatory diseases, but their use can be complicated by the development of lupus-like phenomena. This study was undertaken to investigate the role of TNFα in a murine model of lupus. METHODS Toll-like receptor 7 (TLR-7) ligand-driven lupus was induced by injection of pristane into C57BL/6 (B6) mice deficient in TNFα (TNFα(-/-) ) or TNFα-intact B6 mice as wild-type controls. Autoantibody and type I interferon (IFN) production was measured in each group of mice, and the effects of the presence or absence of TNFα on type I IFN-producing plasmacytoid dendritic cells (PDCs), Ly-6C(high) monocytes, and TNFα-producing neutrophils were determined. RESULTS TNFα(-/-) mice did not spontaneously develop autoantibodies or clinical manifestations of lupus, suggesting that TNFα deficiency alone is insufficient to cause lupus. Although the levels of type I IFN were comparable between untreated TNFα(-/-) and wild-type control mice, untreated TNFα(-/-) mice had increased circulating levels of PDCs and PDC-like cells, which enhanced the potential for production of type I IFN. When treated with pristane, TNFα(-/-) mice developed more severe lupus compared to pristane-treated controls, characterized by increased levels of anti-Sm/RNP autoantibodies, type I IFN, PDCs, and peritoneal inflammatory (Ly-6C(high) ) monocytes. In pristane-treated TNFα(-/-) mice, the numbers of neutrophils, a cell type that promotes resolution of inflammation, were decreased considerably, whereas the responses of inflammatory monocytes and PDCs and the production of type I IFN were increased and prolonged. CONCLUSION Low levels of TNFα will increase the number of circulating PDCs in mice, thereby enhancing the potential to produce type I IFN. However, this does not necessarily lead to type I IFN production or autoimmunity unless there is concomitant exposure to endogenous TLR-7 ligands, which are released from dead cells following pristane treatment. In humans, the rate of clearance of dead cells, along with the levels of TNFα, may influence who will develop lupus following treatment with TNFα inhibitors.
Collapse
Affiliation(s)
- Yuan Xu
- University of Florida, Gainesville
| | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Lo mejor del año en lupus eritematoso sistémico. ACTA ACUST UNITED AC 2015; 11:27-32. [DOI: 10.1016/j.reuma.2014.09.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 08/11/2014] [Accepted: 09/12/2014] [Indexed: 12/16/2022]
|
43
|
Association of TNF-α with impaired migration capacity of mesenchymal stem cells in patients with systemic lupus erythematosus. J Immunol Res 2014; 2014:169082. [PMID: 25762184 PMCID: PMC4265382 DOI: 10.1155/2014/169082] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 09/07/2014] [Indexed: 12/19/2022] Open
Abstract
Previous studies indicated that bone marrow mesenchymal stem cells (BMSCs) from patients with systemic lupus erythematosus (SLE) exhibited impaired capacities of proliferation, differentiation, and immune modulation. Considering that migration capacity is important for the exertion of BMSCs functions, the defects in migration might contribute to BMSCs dysfunction in SLE patients. In this study, we showed that the migration capacity of SLE BMSCs was remarkably impaired in comparison with those of healthy controls. Increased tumor necrosis factor α (TNF-α) in SLE serum significantly inhibited the migration capacity and in vivo homing capacity of SLE BMSCs via a specific TNF receptor I (TNFRI) manner, in which decreased HGF mRNA production caused by the activation of I kappa B kinase beta (IKK-β) pathway is partially involved. To our knowledge, this is the first report to discuss the possible mechanisms for impaired migration of BMSCs in SLE patients. Our results suggest that inhibition of TNF-α pathway might be helpful for accelerating BMSCs migration to the inflammatory microenvironment in SLE patients, thereby having a potential role in SLE treatment.
Collapse
|
44
|
Effects of pristane alone or combined with chloroquine on macrophage activation, oxidative stress, and TH1/TH2 skewness. J Immunol Res 2014; 2014:613136. [PMID: 25136646 PMCID: PMC4127244 DOI: 10.1155/2014/613136] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 05/25/2014] [Accepted: 06/09/2014] [Indexed: 12/19/2022] Open
Abstract
We investigated the protective role of chloroquine against pristane-induced macrophage activation, oxidative stress, and Th1/Th2 skewness in C57BL/6J mice. Those mice were treated with pristane alone or combined with chloroquine. Hematological and biochemical parameters, macrophage phagocytic function, the oxidant/antioxidant index, cytokine for IFN-γ, TNF-α, IL-4, and IL-6, and the isotypes of IgG2a and IgG1 were determined. And the expression of T-bet/GATA-3 and IL-12/IL-10 mRNA in spleen were analyzed by real-time PCR. We found that pristane treatment for a period of 12 or 24 weeks triggered macrophage activation syndrome, characterized by hemophagocytosis in spleen and peripheral blood, enhanced lipid phagocytosis by peritoneal macrophages in vitro, erythropenia and leucopenia, increased anti-Smith, lactic dehydrogenase, triglyceride, and ferritin, as well as hypercytokinemia of IFN-γ, TNF-α, IL-4, and IL-6. In parallel, a significant increase in lipid peroxidation and a decrease in superoxide dismutase, glutathione, and catalase activity, as well as a skewed Th1/Th2 balance in spleen, were observed. However, chloroquine supplementation showed a remarkable amelioration of these abnormalities. Our data indicate that pristane administration induces macrophage activation, oxidative stress, and Th1/Th2 skewness, which can be attenuated by chloroquine.
Collapse
|