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Katikaneni D, Morel L, Scindia Y. Animal models of lupus nephritis: the past, present and a future outlook. Autoimmunity 2024; 57:2319203. [PMID: 38477884 PMCID: PMC10981450 DOI: 10.1080/08916934.2024.2319203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 02/11/2024] [Indexed: 03/14/2024]
Abstract
Lupus nephritis (LN) is the most severe end-organ pathology in Systemic Lupus Erythematosus (SLE). Research has enhanced our understanding of immune effectors and inflammatory pathways in LN. However, even with the best available therapy, the rate of complete remission for proliferative LN remains below 50%. A deeper understanding of the resistance or susceptibility of renal cells to injury during the progression of SLE is critical for identifying new targets and developing effective long-term therapies. The complex and heterogeneous nature of LN, combined with the limitations of clinical research, make it challenging to investigate the aetiology of this disease directly in patients. Hence, multiple murine models resembling SLE-driven nephritis are utilised to dissect LN's cellular and genetic mechanisms, identify therapeutic targets, and screen novel compounds. This review discusses commonly used spontaneous and inducible mouse models that have provided insights into pathogenic mechanisms and long-term maintenance therapies in LN.
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Affiliation(s)
- Divya Katikaneni
- Department of Medicine, University of Florida, Gainesville, Florida, USA
| | - Laurence Morel
- Department of Microbiology, Immunology, and Molecular Genetics, UT Health, San Antonio, Texas, USA
| | - Yogesh Scindia
- Department of Medicine, University of Florida, Gainesville, Florida, USA
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, Florida, USA
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Hosseini S, Mahmoudi M, Rezaieyazdi Z, Shapouri-Moghaddam A, Hosseinzadeh A, Arab FL, Tabasi NS, Esmaeili SA. Lupus mice derived mesenchymal stromal cells: Beneficial or detrimental on SLE disease outcome. Int Immunopharmacol 2024; 126:111306. [PMID: 38039717 DOI: 10.1016/j.intimp.2023.111306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Revised: 11/24/2023] [Accepted: 11/25/2023] [Indexed: 12/03/2023]
Abstract
BACKGROUND Systemic Lupus Erythematosus (SLE) is a chronic autoimmune disease characterized by the presence of autoantibodies against nuclear genes, deposition of immune complexes, and autoimmune T cells, through which, tissue damage would ultimately occur. Furthermore, loss of immune tolerance and imbalance of Th1/Th2 cells in addition to Th17/Treg are contributed to the pathogenesis of SLE. Mesenchymal stromal cells (MSCs) infusion is a potential therapy for SLE disease. Despite a majority of SLE patients achieving clinical remission after allogeneic MSC infusion from healthy individuals, SLE patients have less benefited from autologous MSC infusion, justifying the probable compromised function of SLE patients-derived MSCs. In this study, we aim to further investigate the potential immunoregulatory mechanisms in which mesenchymal stromal cells derived from pristane-induced lupus mice, following injection into healthy and lupus mice, exert their possible effects on the lupus process. METHOD 40 female Balb/c mice aged 3 weeks were purchased and randomly divided into six groups. First, lupus disease was induced into the lupus groups by intraperitoneal injection of pristane and then the mice were surveyed for 6 months. The body weight, anti-dsDNA autoantibody levels, serum creatinine, and Blood Urea Nitrogen (BUN) levels were measured in two-month intervals. After 6 months, the group of lupus mice was sacrificed, and lupus MSCs were isolated. Two months later, cultured lupus MSCs were intravenously injected into two groups of healthy and lupus mice. After two months, the mice were euthanized and the kidneys of each group were examined histologically by hematoxylin & eosin (H&E) staining and the immunofluorescence method was also performed to evaluate IgG and C3 deposition. The frequency of splenic Th1, Th2, Th17, and Treg cells was measured by flow cytometry. Moreover, the cytokine levels of IFN-γ, IL-4, IL-17, and TGF-β in sera were measured by ELISA method. RESULTS Our results showed that the induction of lupus disease by pristane in Balb/c mice caused the formation of lipogranuloma, increased levels of anti-dsDNA autoantibodies, and impaired renal function in all pristane-induced lupus groups. In addition, the injection of lupus mesenchymal stromal cells (L-MSC) into healthy and lupus mice led to a further rise in anti-dsDNA serum levels, IgG and C3 deposition, and further dysfunction of mice renal tissue. Also, the flow cytometry results implicated that compared to the control groups, splenic Th1, Th2, and Th17 inflammatory cell subtypes and their secreted cytokines (IFN-γ, IL-4, and IL-17) in the sera of healthy and lupus mice were increased after the intake of L-MSC. Additionally, the splenic Treg cells were also significantly increased in the lupus mice receiving L-MSC. However, a decrease in serum levels of TGF-β cytokine was observed in healthy and lupus mice following L-MSC injection. In contrast, the lupus mice receiving healthy mesenchymal stem cells (H-MSC) manifested opposite results. CONCLUSION In a nutshell, our results suggest that although allogeneic MSCs are encouraging candidates for SLE treatment, syngeneic MSCs may not be eligible for treating SLE patients due to their defects in regulating the immune system in addition to their capability in promoting inflammation which would consequently worsen the SLE disease status.
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Affiliation(s)
- Sara Hosseini
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Immunology Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Mahmoudi
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Immunology Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Rezaieyazdi
- Rheumatic Diseases Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abbas Shapouri-Moghaddam
- Department of Immunology, BuAli Research Institute, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Akram Hosseinzadeh
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Immunology Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fahimeh Lavi Arab
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Immunology Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Nafiseh Sadat Tabasi
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed-Alireza Esmaeili
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Immunology Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Cho S, Jang E, Yoon T, Hwang H, Youn J. A novel selective spleen tyrosine kinase inhibitor SKI-O-703 (cevidoplenib) ameliorates lupus nephritis and serum-induced arthritis in murine models. Clin Exp Immunol 2023; 211:31-45. [PMID: 36346114 PMCID: PMC9993459 DOI: 10.1093/cei/uxac096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/22/2022] [Accepted: 10/26/2022] [Indexed: 11/10/2022] Open
Abstract
Spleen tyrosine kinase (Syk) plays a pivotal role in the activation of B cells and innate inflammatory cells by transducing immune receptor-triggered signals. Dysregulated activity of Syk is implicated in the development of antibody-mediated autoimmune diseases including systemic lupus erythematosus (SLE) and rheumatoid arthritis, but the effect of Syk inhibition on such diseases remains to be fully evaluated. We have developed a novel selective Syk inhibitor, SKI-O-592, and its orally bioavailable salt form, SKI-O-703 (cevidoplenib). To examine the efficacy of SKI-O-703 on the progression of SLE, New Zealand black/white mice at the autoimmunity-established phase were administrated orally with SKI-O-703 for 16 weeks. Levels of IgG autoantibody, proteinuria, and glomerulonephritis fell significantly, and this was associated with hypoactivation of follicular B cells via the germinal center. In a model of serum-transferred arthritis, SKI-O-703 significantly ameliorated synovitis, with fewer neutrophils and macrophages infiltrated into the synovial tissue. This effect was recapitulated when mice otherwise refractory to anti-TNF therapy were treated by TNF blockade combined with a suboptimal dose of SKI-O-703. These results demonstrate that the novel selective Syk inhibitor SKI-O-703 attenuates the progression of autoantibody-mediated autoimmune diseases by inhibiting both autoantibody-producing and autoantibody-sensing cells.
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Affiliation(s)
- Somi Cho
- Department of Biomedical Science, Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 04763, Korea
| | - Eunkyeong Jang
- Department of Anatomy and Cell Biology, College of Medicine, Hanyang University, Seoul 04763, Korea
| | - Taeyoung Yoon
- Department of Discovery Biology, Research Institute, Oscotec Inc., Seongnam-si, Gyeonggi-do 13488, Korea
| | - Haejun Hwang
- Department of Discovery Biology, Research Institute, Oscotec Inc., Seongnam-si, Gyeonggi-do 13488, Korea
| | - Jeehee Youn
- Department of Biomedical Science, Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 04763, Korea
- Department of Anatomy and Cell Biology, College of Medicine, Hanyang University, Seoul 04763, Korea
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Liu L, Lai Y, Zhan Z, Fu Q, Jiang Y. Downregulation of Three Immune-Specific Core Genes and the Regulatory Pathways in Children and Adult Friedreich's Ataxia: A Comprehensive Analysis Based on Microarray. Front Neurol 2022; 12:816393. [PMID: 35237223 PMCID: PMC8884172 DOI: 10.3389/fneur.2021.816393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 12/29/2021] [Indexed: 11/29/2022] Open
Abstract
Background Friedreich's ataxia (FRDA) is a familial hereditary disorder that lacks available therapy. Therefore, the identification of novel biomarkers and key mechanisms related to FRDA progression is urgently required. Methods We identified the up-regulated and down-regulated differentially expressed genes (DEGs) in children and adult FRDA from the GSE11204 dataset and intersected them to determine the co-expressed DEGs (co-DEGs). Enrichment analysis was conducted and a protein-protein interaction (PPI) network was constructed to identify key pathways and hub genes. The potential diagnostic biomarkers were validated using the GSE30933 dataset. Cytoscape was applied to construct interaction and competitive endogenous RNA (ceRNA) networks. Results Gene Set Enrichment Analysis (GSEA) indicated that the genes in both the child and adult samples were primarily enriched in their immune-related functions. We identified 88 co-DEGs between child and adult FRDA samples. Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and Reactome enrichment analysis suggested that these co-DEGs were primarily enriched in immune response, inflammatory reaction, and necroptosis. Immune infiltration analysis showed remarkable differences in the proportions of immune cell subtype between FRDA and healthy samples. In addition, ten core genes and one gene cluster module were screened out based on the PPI network. We verified eight immune-specific core genes using a validation dataset and found CD28, FAS, and ITIF5 have high diagnostic significance in FRDA. Finally, NEAT1-hsa-miR-24-3p-CD28 was identified as a key regulatory pathway of child and adult FRDA. Conclusions Downregulation of three immune-specific hub genes, CD28, FAS, and IFIT5, may be associated with the progression of child and adult FRDA. Furthermore, NEAT1-hsa-miR-24-3p-CD28 may be the potential RNA regulatory pathway related to the pathogenesis of child and adult FRDA.
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Affiliation(s)
- Lichun Liu
- Department of Pharmacy, Fujian Children's Hospital, Fuzhou, China
| | - Yongxing Lai
- Department of Geriatric Medicine, Fujian Provincial Hospital, Fuzhou, China
| | - Zhidong Zhan
- Department of Pediatric Intensive Care Unit, Fujian Children's Hospital, Fuzhou, China
| | - Qingxian Fu
- Department of Pediatric Endocrinology, Fujian Children's Hospital, Fuzhou, China
| | - Yuelian Jiang
- Department of Pharmacy, Fujian Children's Hospital, Fuzhou, China
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Li W, Chen W, Sun L. An Update for Mesenchymal Stem Cell Therapy in Lupus Nephritis. KIDNEY DISEASES 2021; 7:79-89. [PMID: 33824866 DOI: 10.1159/000513741] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 12/10/2020] [Indexed: 12/13/2022]
Abstract
Background Lupus nephritis (LN) is the most severe organ manifestations of systemic lupus erythematosus (SLE). Although increased knowledge of the disease pathogenesis has improved treatment options, outcomes have plateaued as current immunosuppressive therapies have failed to prevent disease relapse in more than half of treated patients. Thus, there is still an urgent need for novel therapy. Mesenchymal stem cells (MSCs) possess a potently immunosuppressive regulation on immune responses, and intravenous transplantation of MSCs ameliorates disease symptoms and has emerged as a potential beneficial therapy for LN. The objective of this review is to discuss the defective functions of MSCs in LN patients and the application of MSCs in the treatment of both LN animal models and patients. Summary Bone marrow MSCs from SLE patients exhibit impaired capabilities of migration, differentiation, and immune regulation and display senescent phenotype. Allogeneic MSCs suppress autoimmunity and restore renal function in mouse models and patients with LN by inducing regulatory immune cells and suppressing Th1, Th17, T follicular helper cell, and B-cell responses. In addition, MSCs can home to the kidney and integrate into tubular cells and differentiate into mesangial cells. Key Messages The efficacy of MSCs in the LN treatment remains to be confirmed, and future advances from stem cell science can be expected to pinpoint significant MSC subpopulations, as well as specific mechanisms of action, leading the way to the use of more potent stimulated or primed pretreated MSCs to treat LN.
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Affiliation(s)
- Wenchao Li
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Weiwei Chen
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Lingyun Sun
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
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Wierenga KA, Strakovsky RS, Benninghoff AD, Rajasinghe LD, Lock AL, Harkema JR, Pestka JJ. Requisite Omega-3 HUFA Biomarker Thresholds for Preventing Murine Lupus Flaring. Front Immunol 2020; 11:1796. [PMID: 32973753 PMCID: PMC7473030 DOI: 10.3389/fimmu.2020.01796] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 07/06/2020] [Indexed: 12/28/2022] Open
Abstract
Lupus is a systemic autoimmune disease typified by uncontrolled inflammation, disruption of immune tolerance, and intermittent flaring - events triggerable by environmental factors. Preclinical and clinical studies reveal that consumption of the marine ω-3 highly unsaturated fatty acids (HUFAs) eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) might be used as a precision nutrition intervention to lessen lupus symptoms. The anti-inflammatory and pro-resolving effects of ω-3 HUFAs are inextricably linked to their presence in membrane phospholipids. The ω-3 HUFA score, calculated as [100 × (ω-3 HUFAs/(ω-3 HUFAs + ω-6 HUFAs))] in red blood cells (RBCs), and the Omega-3 Index (O3I), calculated as [100 × ((DHA+EPA)/total fatty acids)] in RBCs, are two biomarkers potentially amenable to relating tissue HUFA balance to clinical outcomes in individuals with lupus. Using data from three prior preclinical DHA supplementation studies, we tested the hypothesis that the ω-3 HUFA score and the O3I inversely correlate with indicators of autoimmune pathogenesis in the cSiO2-triggered lupus flaring model. The three studies employed both low and high fat rodent diets, as well as more complex diets emulating the U.S. dietary pattern. The ω-3 HUFA scores in RBCs were comparatively more robust than the O3I at predicting HUFA balances in the kidney, liver, spleen, and lung. Importantly, increases in both the ω-3 HUFA score (>40%) and the O3I (>10%) were strongly associated with suppression of cSiO2-triggered (1) expression of interferon-regulated genes, proinflammatory cytokine production, leukocyte infiltration, and ectopic lymphoid structure development in the lung, (2) pulmonary and systemic autoantibody production, and (3) glomerulonephritis. Collectively, these findings identify achievable ω-3 HUFA scores and O3I thresholds that could be targeted in future human intervention studies querying how ω-3 HUFA consumption influences lupus and other autoimmune diseases.
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MESH Headings
- Animal Feed
- Animals
- Autoimmunity
- Biomarkers/blood
- Bronchoalveolar Lavage Fluid/immunology
- Cytokines/metabolism
- Diet
- Disease Models, Animal
- Erythrocytes/metabolism
- Fatty Acids, Omega-3/administration & dosage
- Fatty Acids, Omega-3/blood
- Fatty Acids, Omega-6/administration & dosage
- Fatty Acids, Omega-6/blood
- Female
- Inflammation Mediators/metabolism
- Lupus Erythematosus, Systemic/blood
- Lupus Erythematosus, Systemic/diagnosis
- Lupus Erythematosus, Systemic/diet therapy
- Lupus Erythematosus, Systemic/immunology
- Mice, Inbred NZB
- Predictive Value of Tests
- Symptom Flare Up
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Affiliation(s)
- Kathryn A. Wierenga
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, United States
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
| | - Rita S. Strakovsky
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
| | - Abby D. Benninghoff
- Department of Animal, Dairy and Veterinary Sciences and USTAR Applied Nutrition Research, Utah State University, Logan, UT, United States
| | - Lichchavi D. Rajasinghe
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
| | - Adam L. Lock
- Department of Animal Science, Michigan State University, East Lansing, MI, United States
| | - Jack R. Harkema
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - James J. Pestka
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, United States
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Gilley KN, Wierenga KA, Chauhuan PS, Wagner JG, Lewandowski RP, Ross EA, Lock AL, Harkema JR, Benninghoff AD, Pestka JJ. Influence of total western diet on docosahexaenoic acid suppression of silica-triggered lupus flaring in NZBWF1 mice. PLoS One 2020; 15:e0233183. [PMID: 32413078 PMCID: PMC7228097 DOI: 10.1371/journal.pone.0233183] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 04/29/2020] [Indexed: 12/13/2022] Open
Abstract
Lupus is a debilitating multi-organ autoimmune disease clinically typified by periods of flare and remission. Exposing lupus-prone female NZBWF1 mice to crystalline silica (cSiO2), a known human autoimmune trigger, mimics flaring by inducing interferon-related gene (IRG) expression, inflammation, ectopic lymphoid structure (ELS) development, and autoantibody production in the lung that collectively accelerate glomerulonephritis. cSiO2-triggered flaring in this model can be prevented by supplementing mouse diet with the ω-3 polyunsaturated fatty acid (PUFA) docosahexaenoic acid (DHA). A limitation of previous studies was the use of purified diet that, although optimized for rodent health, does not reflect the high American intake of saturated fatty acid (SFA), ω-6 PUFAs, and total fat. To address this, we employed here a modified Total Western Diet (mTWD) emulating the 50th percentile U.S. macronutrient distribution to discern how DHA supplementation and/or SFA and ω-6 reduction influences cSiO2-triggered lupus flaring in female NZBWF1 mice. Six-week-old mice were fed isocaloric experimental diets for 2 wks, intranasally instilled with cSiO2 or saline vehicle weekly for 4 wks, and tissues assessed for lupus endpoints 11 wks following cSiO2 instillation. In mice fed basal mTWD, cSiO2 induced robust IRG expression, proinflammatory cytokine and chemokine elevation, leukocyte infiltration, ELS neogenesis, and autoantibody production in the lung, as well as early kidney nephritis onset compared to vehicle-treated mice fed mTWD. Consumption of mTWD containing DHA at the caloric equivalent to a human dose of 5 g/day dramatically suppressed induction of all lupus-associated endpoints. While decreasing SFA and ω-6 in mTWD modestly inhibited some disease markers, DHA addition to this diet was required for maximal protection against lupus development. Taken together, DHA supplementation at a translationally relevant dose was highly effective in preventing cSiO2-triggered lupus flaring in NZBWF1 mice, even against the background of a typical Western diet.
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Affiliation(s)
- Kristen N. Gilley
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, Michigan, United States of America
| | - Kathryn A. Wierenga
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan, United States of America
- Institute for Integrative Toxicology, Michigan State University, East Lansing, Michigan, United States of America
| | - Preeti S. Chauhuan
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, Michigan, United States of America
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan, United States of America
| | - James G. Wagner
- Institute for Integrative Toxicology, Michigan State University, East Lansing, Michigan, United States of America
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, Michigan, United States of America
| | - Ryan P. Lewandowski
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, Michigan, United States of America
| | - Elizbeth A. Ross
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, Michigan, United States of America
| | - A. L. Lock
- Department of Animal Science, Michigan State University, East Lansing, Michigan, United States of America
| | - Jack R. Harkema
- Institute for Integrative Toxicology, Michigan State University, East Lansing, Michigan, United States of America
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, Michigan, United States of America
| | - Abby D. Benninghoff
- Department of Animal, Dairy and Veterinary Sciences, School of Veterinary Medicine, Utah State University, Logan, Utah, United States of America
| | - James J. Pestka
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, Michigan, United States of America
- Institute for Integrative Toxicology, Michigan State University, East Lansing, Michigan, United States of America
- Department of Microbiology and Molecular Genetics, East Lansing, Michigan, United States of America
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Benninghoff AD, Bates MA, Chauhan PS, Wierenga KA, Gilley KN, Holian A, Harkema JR, Pestka JJ. Docosahexaenoic Acid Consumption Impedes Early Interferon- and Chemokine-Related Gene Expression While Suppressing Silica-Triggered Flaring of Murine Lupus. Front Immunol 2019; 10:2851. [PMID: 31921124 PMCID: PMC6923248 DOI: 10.3389/fimmu.2019.02851] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 11/20/2019] [Indexed: 12/18/2022] Open
Abstract
Exposure of lupus-prone female NZBWF1 mice to respirable crystalline silica (cSiO2), a known human autoimmune trigger, initiates loss of tolerance, rapid progression of autoimmunity, and early onset of glomerulonephritis. We have previously demonstrated that dietary supplementation with the ω-3 polyunsaturated fatty acid docosahexaenoic acid (DHA) suppresses autoimmune pathogenesis and nephritis in this unique model of lupus flaring. In this report, we utilized tissues from prior studies to test the hypothesis that DHA consumption interferes with upregulation of critical genes associated with cSiO2-triggered murine lupus. A NanoString nCounter platform targeting 770 immune-related genes was used to assess the effects cSiO2 on mRNA signatures over time in female NZBWF1 mice consuming control (CON) diets compared to mice fed diets containing DHA at an amount calorically equivalent to human consumption of 2 g per day (DHA low) or 5 g per day (DHA high). Experimental groups of mice were sacrificed: (1) 1 d after a single intranasal instillation of 1 mg cSiO2 or vehicle, (2) 1 d after four weekly single instillations of vehicle or 1 mg cSiO2, and (3) 1, 5, 9, and 13 weeks after four weekly single instillations of vehicle or 1 mg cSiO2. Genes associated with inflammation as well as innate and adaptive immunity were markedly upregulated in lungs of CON-fed mice 1 d after four weekly cSiO2 doses but were significantly suppressed in mice fed DHA high diets. Importantly, mRNA signatures in lungs of cSiO2-treated CON-fed mice over 13 weeks reflected progressive amplification of interferon (IFN)- and chemokine-related gene pathways. While these responses in the DHA low group were suppressed primarily at week 5, significant downregulation was observed at weeks 1, 5, 9, and 13 in mice fed the DHA high diet. At week 13, cSiO2 treatment of CON-fed mice affected 214 genes in kidney tissue associated with inflammation, innate/adaptive immunity, IFN, chemokines, and antigen processing, mostly by upregulation; however, feeding DHA dose-dependently suppressed these responses. Taken together, dietary DHA intake in lupus-prone mice impeded cSiO2-triggered mRNA signatures known to be involved in ectopic lymphoid tissue neogenesis, systemic autoimmunity, and glomerulonephritis.
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Affiliation(s)
- Abby D. Benninghoff
- Department of Animal, Dairy and Veterinary Sciences and The School of Veterinary Medicine, Utah State University, Logan, UT, United States
| | - Melissa A. Bates
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
| | - Preeti S. Chauhan
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
| | - Kathryn A. Wierenga
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, United States
| | - Kristen N. Gilley
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
| | - Andrij Holian
- Department of Biomedical and Pharmaceutical Sciences, Center for Environmental Health Sciences, University of Montana, Missoula, MT, United States
| | - Jack R. Harkema
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - James J. Pestka
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, United States
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Identification of Constituents Affecting the Secretion of Pro-Inflammatory Cytokines in LPS-Induced U937 Cells by UHPLC-HRMS-Based Metabolic Profiling of the Traditional Chinese Medicine Formulation Huangqi Jianzhong Tang. Molecules 2019; 24:molecules24173116. [PMID: 31461974 PMCID: PMC6749298 DOI: 10.3390/molecules24173116] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/12/2019] [Accepted: 08/19/2019] [Indexed: 12/30/2022] Open
Abstract
Within non-communicable diseases, chronic inflammatory conditions represent one of the biggest challenges for modern medicine. Traditional Chinese Medicine (TCM) has been practiced over centuries and has accumulated tremendous empirical knowledge on the treatment of such diseases. Huangqi Jianzhong Tang (HQJZT) is a famous TCM herbal formula composed of Radix Astragali, Ramulus Cinnamomi, Radix et Rhizoma Glycyrrhizae Praeparata cum Melle, Radix Paeoniae Alba, Rhizoma Zingiberis Recens, Fructus Jujubae and Saccharum Granorum (maltose), which has been used for the treatment of various chronic inflammatory gastrointestinal diseases. However, there is insufficient knowledge about its active constituents and the mechanisms responsible for its effects. The present study aimed at identifying constituents contributing to the bioactivity of HQJZT by combining in vitro cytokine production assays and LC-MS metabolomics techniques. From the HQJZT decoction as well as from its single herbal components, extracts of different polarities were prepared. Phytochemical composition of the extracts was analyzed by means of UPLC-QTOF-MS/MS. The inhibitory effects of the extracts on TNF-α, IL-1β and IFN-γ production were studied in U937 cells. Phytochemical and pharmacological bioactivity data were correlated by orthogonal projection to latent structures discriminant analysis (OPLS-DA) in order to identify those HQJZT constituents which may be relevant for the observed pharmacological activities. The investigations resulted in the identification of 16 HQJZT constituents, which are likely to contribute to the activities observed in U937 cells. Seven of them, namely calycosin, formononetin, astragaloside I, liquiritigenin, 18β-glycyrrhetinic acid, paeoniflorin and albiflorin were unambiguously identified. The predicted results were verified by testing these compounds in the same pharmacological assays as for the extracts. In conclusion, the anti-inflammatory activity of HQJZT could be substantiated by in vitro pharmacological screening, and the predicted activities of the OPLS-DA hits could be partially verified. Moreover, the benefits and limitations of MVDA for prediction pharmacologically active compounds contributing to the activity of a TCM mixture could be detected.
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Bates MA, Akbari P, Gilley KN, Wagner JG, Li N, Kopec AK, Wierenga KA, Jackson-Humbles D, Brandenberger C, Holian A, Benninghoff AD, Harkema JR, Pestka JJ. Dietary Docosahexaenoic Acid Prevents Silica-Induced Development of Pulmonary Ectopic Germinal Centers and Glomerulonephritis in the Lupus-Prone NZBWF1 Mouse. Front Immunol 2018; 9:2002. [PMID: 30258439 PMCID: PMC6143671 DOI: 10.3389/fimmu.2018.02002] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 08/14/2018] [Indexed: 12/27/2022] Open
Abstract
Ectopic lymphoid structures (ELS) consist of B-cell and T-cell aggregates that are initiated de novo in inflamed tissues outside of secondary lymphoid organs. When organized within follicular dendritic cell (FDC) networks, ELS contain functional germinal centers that can yield autoantibody-secreting plasma cells and promote autoimmune disease. Intranasal instillation of lupus-prone mice with crystalline silica (cSiO2), a respirable particle linked to human lupus, triggers ELS formation in the lung, systemic autoantibodies, and early onset of glomerulonephritis. Here we tested the hypothesis that consumption of docosahexaenoic acid (DHA), an ω-3 polyunsaturated fatty acid with anti-inflammatory properties, influences the temporal profile of cSiO2-induced pulmonary ectopic germinal center formation and development of glomerulonephritis. Female NZBWF1 mice (6-wk old) were fed purified isocaloric diets supplemented with 0, 4, or 10 g/kg DHA - calorically equivalent to 0, 2, or 5 g DHA per day consumption by humans, respectively. Beginning at age 8 wk, mice were intranasally instilled with 1 mg cSiO2, or saline vehicle alone, once per wk, for 4 wk. Cohorts were sacrificed 1, 5, 9, or 13 wk post-instillation (PI) of the last cSiO2 dose, and lung and kidney lesions were investigated by histopathology. Tissue fatty acid analyses confirmed uniform dose-dependent DHA incorporation across all cohorts. As early as 1 wk PI, inflammation comprising of B (CD45R+) and T (CD3+) cell accumulation was observed in lungs of cSiO2-treated mice compared to vehicle controls; these responses intensified over time. Marked follicular dendritic cell (FDC; CD21+/CD35+) networking appeared at 9 and 13 wk PI. IgG+ plasma cells suggestive of mature germinal centers were evident at 13 wk. DHA supplementation dramatically suppressed cSiO2-triggered B-cell, T-cell, FDC, and IgG+ plasma cell appearance in the lungs as well as anti-dsDNA IgG in bronchial lavage fluid and plasma over the course of the experiment. cSiO2 induced glomerulonephritis with concomitant B-cell accumulation in the renal cortex at 13 wk PI but this response was abrogated by DHA feeding. Taken together, realistic dietary DHA supplementation prevented initiation and/or progression of ectopic lymphoid neogenesis, germinal center development, systemic autoantibody elevation, and resultant glomerulonephritis in this unique preclinical model of environment-triggered lupus.
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Affiliation(s)
- Melissa A Bates
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States.,Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
| | - Peyman Akbari
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States.,Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States.,Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - Kristen N Gilley
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
| | - James G Wagner
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - Ning Li
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - Anna K Kopec
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States.,Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - Kathryn A Wierenga
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States.,Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, United States
| | - Daven Jackson-Humbles
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | | | - Andrij Holian
- Department of Biomedical and Pharmaceutical Sciences, Center for Environmental Health Sciences, University of Montana, Missoula, MT, United States
| | - Abby D Benninghoff
- Department of Animal, Dairy and Veterinary Sciences, School of Veterinary Medicine, Utah State University, Logan, UT, United States
| | - Jack R Harkema
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States.,Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - James J Pestka
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States.,Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States.,Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, United States
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Chen J, Zeng W, Pan W, Peng C, Zhang J, Su J, Long W, Zhao H, Zuo X, Xie X, Wu J, Nie L, Zhao HY, Wei HJ, Chen X. Symptoms of systemic lupus erythematosus are diagnosed in leptin transgenic pigs. PLoS Biol 2018; 16:e2005354. [PMID: 30169503 PMCID: PMC6147741 DOI: 10.1371/journal.pbio.2005354] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 09/20/2018] [Accepted: 08/13/2018] [Indexed: 12/12/2022] Open
Abstract
Leptin is a well-known adipokine that plays a critical role in immune responses. To further explore the immunological roles of leptin, we developed a transgenic leptin pig controlled by the pig leptin (pleptin) promoter to overexpress leptin. Symptoms typically associated with systemic lupus erythematosus (SLE) were evident in this transgenic pig strain, including anemia, leukopenia, and thrombocytopenia as well as kidney and liver impairment. Histologically, there were increased immunoglobulin G (IgG) levels, elevated antiplatelet antibody (APA) levels, and deposition of immune complexes in the kidney and liver. In addition, anti-double-stranded DNA antibodies (dsDNAs), antinuclear antibodies (ANAs), and antinucleosome antibodies (ANuAs) were all significantly increased in serum immunological examinations. These findings were also accompanied by repression of the regulatory T cell (Treg) ratio. Significantly, glucocorticoid experimental therapies partially relieved the autoimmune responses and bleeding symptoms observed in these transgenic leptin pigs. Together, these results indicate that leptin plays a critical role in the development of autoimmune disorders and demonstrate that our transgenic leptin pigs can act as a valuable model of SLE.
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Affiliation(s)
- Junchen Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Weiqi Zeng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Weirong Pan
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Cong Peng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Jianglin Zhang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Juan Su
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Weihu Long
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Heng Zhao
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Xiaoxia Zuo
- Department of Rheumatology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoyun Xie
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, China
| | - Jing Wu
- Department of Endocrinology, Xiangya Hospital, Central South University, Changsha, China
| | - Ling Nie
- Department of Hematology, Xiangya Hospital, Central South University, Changsha, China
| | - Hong-Ye Zhao
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Hong-Jiang Wei
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming, China
- * E-mail: (XC); (HJW)
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
- * E-mail: (XC); (HJW)
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Rana A, Musto AE. The role of inflammation in the development of epilepsy. J Neuroinflammation 2018; 15:144. [PMID: 29764485 PMCID: PMC5952578 DOI: 10.1186/s12974-018-1192-7] [Citation(s) in RCA: 387] [Impact Index Per Article: 64.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 05/06/2018] [Indexed: 12/18/2022] Open
Abstract
Epilepsy, a neurological disease characterized by recurrent seizures, is often associated with a history of previous lesions in the nervous system. Impaired regulation of the activation and resolution of inflammatory cells and molecules in the injured neuronal tissue is a critical factor to the development of epilepsy. However, it is still unclear as to how that unbalanced regulation of inflammation contributes to epilepsy. Therefore, one of the goals in epilepsy research is to identify and elucidate the interconnected inflammatory pathways in systemic and neurological disorders that may further develop epilepsy progression. In this paper, inflammatory molecules, in neurological and systemic disorders (rheumatoid arthritis, Crohn’s, Type I Diabetes, etc.) that could contribute to epilepsy development, are reviewed. Understanding the neurobiology of inflammation in epileptogenesis will contribute to the development of new biomarkers for better screening of patients at risk for epilepsy and new therapeutic targets for both prophylaxis and treatment of epilepsy.
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Affiliation(s)
- Amna Rana
- Department of Pathology and Anatomy, Department of Neurology, Eastern Virginia Medical School, 700 W. Olney Road, Lewis Hall, Office 2174, Norfolk, VA, 23507, USA
| | - Alberto E Musto
- Department of Pathology and Anatomy, Department of Neurology, Eastern Virginia Medical School, 700 W. Olney Road, Lewis Hall, Office 2174, Norfolk, VA, 23507, USA.
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Abstract
PURPOSE OF REVIEW The complexity and heterogeneity of the clinical presentation in systemic lupus of erythematosus (SLE), combined to the inherent limitations of clinical research, have made it difficult to investigate the cause of this disease directly in patients. Various mouse models have been developed to dissect the cellular and genetic mechanisms of SLE, as well as to identify therapeutic targets and to screen treatments. The purpose of this review is to summarize the major spontaneous and induced mouse models of SLE and to provide an update on the major advances they have contributed to the field. RECENT FINDINGS Mouse models of SLE have continued to contribute to understand the cellular, signaling and metabolic mechanisms contributing to the disease and how targeting these pathways can provide therapeutic targets. Whenever possible, we discuss the advantage of using one model over the others to test a specific hypothesis. SUMMARY Spontaneous and induced models of lupus models are useful tools for the study of the cause of the disease, identify therapeutic targets and screen treatments in preclinical studies. Each model shares specific subsets of attributes with the disease observed in humans, which provides investigators a tool to tailor to their specific needs.
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Bates MA, Brandenberger C, Langohr II, Kumagai K, Lock AL, Harkema JR, Holian A, Pestka JJ. Silica-Triggered Autoimmunity in Lupus-Prone Mice Blocked by Docosahexaenoic Acid Consumption. PLoS One 2016; 11:e0160622. [PMID: 27513935 PMCID: PMC4981380 DOI: 10.1371/journal.pone.0160622] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 07/22/2016] [Indexed: 01/08/2023] Open
Abstract
Occupational exposure to respirable crystalline silica (cSiO2, quartz) is etiologically linked to systemic lupus erythematosus (lupus) and other human autoimmune diseases (ADs). In the female NZBWF1 mouse, a widely used animal model that is genetically prone to lupus, short-term repeated intranasal exposure to cSiO2 triggers premature initiation of autoimmune responses in the lungs and kidneys. In contrast to cSiO2's triggering action, consumption of the ω-3 polyunsaturated fatty acid docosahexaenoic acid (DHA) prevents spontaneous onset of autoimmunity in this mouse strain. The aim of this study was to test the hypothesis that consumption of DHA will prevent cSiO2-triggered autoimmunity in the female NZBWF1 mouse. Mice (6 wk old) were fed isocaloric AIN-93G diets containing 0.0, 0.4, 1.2 or 2.4% DHA. Two wk after initiating feeding, mice were intranasally instilled with 1 mg cSiO2 once per wk for 4 wk and maintained on experimental diets for an additional 12 wk. Mice were then sacrificed and the lung, blood and kidney assessed for markers of inflammation and autoimmunity. DHA was incorporated into lung, red blood cells and kidney from diet in a concentration-dependent fashion. Dietary DHA dose-dependently suppressed cSiO2-triggered perivascular leukocyte infiltration and ectopic lymphoid tissue neogenesis in the lung. DHA consumption concurrently inhibited cSiO2-driven elevation of proinflammatory cytokines, B-cell proliferation factors, IgG and anti-dsDNA Ig in both bronchoalveolar lavage fluid and plasma. DHA's prophylactic effects were further mirrored in reduced proteinuria and glomerulonephritis in cSiO2-treated mice. Taken together, these results reveal that DHA consumption suppresses cSiO2 triggering of autoimmunity in female NZBWF1 mice as manifested in the lung, blood and kidney. Our findings provide novel insight into how dietary modulation of the lipidome might be used to prevent or delay triggering of AD by cSiO2. Such knowledge opens the possibility of developing practical, low-cost preventative strategies to reduce the risk of initiating AD and subsequent flaring in cSiO2-exposed individuals. Additional research in this model is required to establish the mechanisms by which DHA suppresses cSiO2-induced autoimmunity and to ascertain unique lipidome signatures predictive of susceptibility to cSiO2-triggered AD.
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Affiliation(s)
- Melissa A. Bates
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, 48824, United States of America
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, 48824, United States of America
| | - Christina Brandenberger
- Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, 30625, Germany
| | - Ingeborg I. Langohr
- Department of Pathobiological Studies, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, 70803, United States of America
| | - Kazuyoshi Kumagai
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, 48824, United States of America
| | - Adam L. Lock
- Department of Animal Science, Michigan State University, East Lansing, MI, 48824, United States of America
| | - Jack R. Harkema
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, 48824, United States of America
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, 48824, United States of America
| | - Andrij Holian
- Center for Environmental Health Sciences, University of Montana, Missoula, MT, 59812, United States of America
| | - James J. Pestka
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, 48824, United States of America
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, 48824, United States of America
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Crow AR, Lazarus AH. Mechanistic properties of intravenous immunoglobulin in murine immune thrombocytopenia: support for FcγRIIB falls by the wayside. Semin Hematol 2016; 53 Suppl 1:S20-2. [DOI: 10.1053/j.seminhematol.2016.04.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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16
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Dendritic Cells in Systemic Lupus Erythematosus: From Pathogenic Players to Therapeutic Tools. Mediators Inflamm 2016; 2016:5045248. [PMID: 27122656 PMCID: PMC4829720 DOI: 10.1155/2016/5045248] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 03/13/2016] [Indexed: 12/20/2022] Open
Abstract
System lupus erythematosus (SLE) is a multifactorial systemic autoimmune disease with a wide variety of presenting features. SLE is believed to result from dysregulated immune responses, loss of tolerance of CD4 T cells and B cells to ubiquitous self-antigens, and the subsequent production of anti-nuclear and other autoreactive antibodies. Recent research has associated lupus development with changes in the dendritic cell (DC) compartment, including altered DC subset frequency and localization, overactivation of mDCs and pDCs, and functional defects in DCs. Here we discuss the current knowledge on the role of DC dysfunction in SLE pathogenesis, with the focus on DCs as targets for interventional therapies.
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Lu S, Zeumer L, Sorensen H, Yang H, Ng Y, Yu F, Riva A, Croker B, Wallet S, Morel L. The murine Pbx1-d lupus susceptibility allele accelerates mesenchymal stem cell differentiation and impairs their immunosuppressive function. THE JOURNAL OF IMMUNOLOGY 2016; 194:43-55. [PMID: 25416808 DOI: 10.4049/jimmunol.1401851] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Pre–B cell leukemia homeobox 1 (Pbx1)-d is a dominant-negative splice isoform of the gene Pbx1 that corresponds to the NZM2410 lupus susceptibility locus Sle1a1. Pbx1 is required to maintain stem cell self-renewal, including that of mesenchymal stem cells (MSCs). MSCs have immunosuppressive functions that require stem cell maintenance. We tested the hypothesis that the expression of Pbx1-d favors MSC differentiation and impairs their immunosuppressive functions. We demonstrate that Sle1a1 MSCs express high levels of Pbx1-d as compared with congenic C57BL/6J (B6) MSCs. Sle1a1 MSCs grew faster and differentiated significantly more rapidly into osteoblasts than did B6 MSCs. This corresponded to a significant decrease in the expression of genes associated with stemness and an increase in the expression of genes associated with differentiation. Additionally, Sle1a1 MSCs express a gene expression profile associated with an enhanced innate immunity and inflammation. Suppression of Ig production from TLR-activated B6 B cells and IL-2 secretion from activated B6 CD4+ T cells was significantly impaired in Sle1a1 MSCs as compared with B6 MSCs. B6.Sle1a1 MSCs showed intermediate activity in suppressing lupus immunophenotypes in three different mouse models. Taken together, these data suggest that the expression of the lupus susceptibility allele Pbx1-d isoform impairs MSC functions, which may contribute to lupus pathogenesis both through a defective immunosuppression and the promotion of a proinflammatory environment.
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Affiliation(s)
- Shun Lu
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Leilani Zeumer
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Heather Sorensen
- Department of Periodontology, Department of Oral Biology, University of Florida, Gainesville, FL 32610
| | - Hong Yang
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Yunfai Ng
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Fahong Yu
- Bioinformatic Core, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32610
| | - Alberto Riva
- Bioinformatic Core, Interdisciplinary Center for Biotechnology Research, University of Florida, Gainesville, FL 32610
| | - Byron Croker
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Shannon Wallet
- Department of Periodontology, Department of Oral Biology, University of Florida, Gainesville, FL 32610
| | - Laurence Morel
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610
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Mesenchymal Stem Cell Treatment in Mice Models of Systemic Lupus Erythematosus. STEM CELL BIOLOGY AND REGENERATIVE MEDICINE 2016. [DOI: 10.1007/978-3-319-46733-7_3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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19
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Kurien BT, Harris VM, Quadri SMS, Coutinho-de Souza P, Cavett J, Moyer A, Ittiq B, Metcalf A, Ramji HF, Truong D, Kumar R, Koelsch KA, Centola M, Payne A, Danda D, Scofield RH. Significantly reduced lymphadenopathy, salivary gland infiltrates and proteinuria in MRL-lpr/lpr mice treated with ultrasoluble curcumin/turmeric: increased survival with curcumin treatment. Lupus Sci Med 2015; 2:e000114. [PMID: 26380101 PMCID: PMC4567741 DOI: 10.1136/lupus-2015-000114] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 08/05/2015] [Accepted: 08/20/2015] [Indexed: 11/26/2022]
Abstract
Objectives Commercial curcumin (CU), derived from food spice turmeric (TU), has been widely studied as a potential therapeutic for a variety of oncological and inflammatory conditions. Lack of solubility/bioavailability has hindered curcumin's therapeutic efficacy in human diseases. We have solubilised curcumin in water applying heat/pressure, obtaining up to 35-fold increase in solubility (ultrasoluble curcumin (UsC)). We hypothesised that UsC or ultrasoluble turmeric (UsT) will ameliorate systemic lupus erythematosus (SLE) and Sjögren's syndrome (SS)-like disease in MRL-lpr/lpr mice. Methods Eighteen female MRL-lpr/lpr (6 weeks old) and 18 female MRL-MpJ mice (6 weeks old) were used. Female MRL-lpr/lpr mice develop lupus-like disease at the 10th week and die at an average age of 17 weeks. MRL-MpJ mice develop lupus-like disease around 47 weeks and typically die at 73 weeks. Six mice of each strain received autoclaved water only (lpr-water or MpJ-water group), UsC (lpr-CU or MpJ-CU group) or UsT (lpr-TU or MpJ-TU group) in the water bottle. Results UsC or UsT ameliorates SLE in the MRL-lpr/lpr mice by significantly reducing lymphoproliferation, proteinuria, lesions (tail) and autoantibodies. lpr-CU group had a 20% survival advantage over lpr-water group. However, lpr-TU group lived an average of 16 days shorter than lpr-water group due to complications unrelated to lupus-like illness. CU/TU treatment inhibited lymphadenopathy significantly compared with lpr-water group (p=0.03 and p=0.02, respectively) by induction of apoptosis. Average lymph node weights were 2606±1147, 742±331 and 385±68 mg, respectively, for lpr-water, lpr-CU and lpr-TU mice. Transferase dUTP nick end labelling assay showed that lymphocytes in lymph nodes of lpr-CU and lpr-TU mice underwent apoptosis. Significantly reduced cellular infiltration of the salivary glands in the lpr-TU group compared with the lpr-water group, and a trend towards reduced kidney damage was observed in the lpr-CU and lpr-TU groups. Conclusions These studies show that UsC/UsT could prove useful as a therapeutic intervention in SLE/SS.
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Affiliation(s)
- Biji T Kurien
- Department of Medicine , University of Oklahoma Health Sciences Center , Oklahoma City, Oklahoma , USA ; Oklahoma Medical Research Foundation , Arthritis & Clinical Immunology Program , Oklahoma City, Oklahoma , USA ; Department Veterans Affairs Medical Center, Oklahoma City, Oklahoma, USA
| | - Valerie M Harris
- Department of Medicine , University of Oklahoma Health Sciences Center , Oklahoma City, Oklahoma , USA ; Oklahoma Medical Research Foundation , Arthritis & Clinical Immunology Program , Oklahoma City, Oklahoma , USA
| | - Syed M S Quadri
- Department of Medicine , University of Oklahoma Health Sciences Center , Oklahoma City, Oklahoma , USA ; Oklahoma Medical Research Foundation , Arthritis & Clinical Immunology Program , Oklahoma City, Oklahoma , USA
| | - Patricia Coutinho-de Souza
- Oklahoma Medical Research Foundation , Arthritis & Clinical Immunology Program , Oklahoma City, Oklahoma , USA
| | - Joshua Cavett
- Department of Medicine , University of Oklahoma Health Sciences Center , Oklahoma City, Oklahoma , USA ; Oklahoma Medical Research Foundation , Arthritis & Clinical Immunology Program , Oklahoma City, Oklahoma , USA
| | - Amanda Moyer
- Department of Medicine , University of Oklahoma Health Sciences Center , Oklahoma City, Oklahoma , USA
| | - Bilal Ittiq
- Department of Medicine , University of Oklahoma Health Sciences Center , Oklahoma City, Oklahoma , USA
| | - Angela Metcalf
- Oklahoma Medical Research Foundation , Arthritis & Clinical Immunology Program , Oklahoma City, Oklahoma , USA
| | - Husayn F Ramji
- Oklahoma School of Science and Mathematics, Oklahoma City, Oklahoma, USA ; University of Oklahoma , Norman, Oklahoma , USA
| | - Dat Truong
- Oklahoma School of Science and Mathematics, Oklahoma City, Oklahoma, USA
| | - Ramesh Kumar
- Oklahoma Medical Research Foundation , Arthritis & Clinical Immunology Program , Oklahoma City, Oklahoma , USA
| | - Kristi A Koelsch
- Department of Medicine , University of Oklahoma Health Sciences Center , Oklahoma City, Oklahoma , USA ; Oklahoma Medical Research Foundation , Arthritis & Clinical Immunology Program , Oklahoma City, Oklahoma , USA ; Department Veterans Affairs Medical Center, Oklahoma City, Oklahoma, USA
| | - Mike Centola
- Haus Bioceuticals , Oklahoma City, Oklahoma , USA
| | - Adam Payne
- Haus Bioceuticals , Oklahoma City, Oklahoma , USA
| | | | - R Hal Scofield
- Department of Medicine , University of Oklahoma Health Sciences Center , Oklahoma City, Oklahoma , USA ; Oklahoma Medical Research Foundation , Arthritis & Clinical Immunology Program , Oklahoma City, Oklahoma , USA ; Department Veterans Affairs Medical Center, Oklahoma City, Oklahoma, USA
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Bates MA, Brandenberger C, Langohr I, Kumagai K, Harkema JR, Holian A, Pestka JJ. Silica Triggers Inflammation and Ectopic Lymphoid Neogenesis in the Lungs in Parallel with Accelerated Onset of Systemic Autoimmunity and Glomerulonephritis in the Lupus-Prone NZBWF1 Mouse. PLoS One 2015; 10:e0125481. [PMID: 25978333 PMCID: PMC4433215 DOI: 10.1371/journal.pone.0125481] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 03/18/2015] [Indexed: 01/02/2023] Open
Abstract
Genetic predisposition and environmental factors influence the development of human autoimmune disease. Occupational exposure to crystalline silica (cSiO2) has been etiologically linked to increased incidence of autoimmunity, including systemic lupus erythematosus (SLE), but the underlying mechanisms are poorly understood. The purpose of this study was to test the hypothesis that early repeated short-term cSiO2 exposure will modulate both latency and severity of autoimmunity in the lupus-prone female NZBWF1 mouse. Weekly intranasal exposure to cSiO2 (0.25 and 1.0 mg) for 4 wk beginning at 9 wk of age both reduced latency and increased intensity of glomerulonephritis. cSiO2 elicited robust inflammatory responses in the lungs as evidenced by extensive perivascular and peribronchial lymphoplasmacytic infiltration consisting of IgG-producing plasma cells, and CD45R+ and CD3+ lymphocytes that were highly suggestive of ectopic lymphoid tissue (ELT). In addition, there were elevated concentrations of immunoglobulins and the cytokines MCP-1, TNF-α and IL-6 in bronchoalveolar lavage fluid. cSiO2-associated kidney and lung effects paralleled dose-dependent elevations of autoantibodies and proinflammatory cytokines in plasma. Taken together, cSiO2-induced pulmonary inflammation and ectopic lymphoid neogenesis in the NZBWF1 mouse corresponded closely to systemic inflammatory and autoimmune responses as well as the early initiation of pathological outcomes in the kidney. These findings suggest that following airway exposure to crystalline silica, in mice genetically prone to SLE, the lung serves as a platform for triggering systemic autoimmunity and glomerulonephritis.
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Affiliation(s)
- Melissa A. Bates
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, Michigan, United States of America
- Center for Integrative Toxicology, Michigan State University, East Lansing, Michigan, United States of America
| | - Christina Brandenberger
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, Michigan, United States of America
- Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany
| | - Ingeborg Langohr
- Department of Pathobiological Studies, School of Veterinary Medicine, Louisiana State University, Baton Rogue, Louisiana, United States of America
| | - Kazuyoshi Kumagai
- Center for Integrative Toxicology, Michigan State University, East Lansing, Michigan, United States of America
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, Michigan, United States of America
| | - Jack R. Harkema
- Center for Integrative Toxicology, Michigan State University, East Lansing, Michigan, United States of America
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, Michigan, United States of America
| | - Andrij Holian
- Center for Environmental Health Sciences, University of Montana, Missoula, Montana, United States of America
| | - James J. Pestka
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, Michigan, United States of America
- Center for Integrative Toxicology, Michigan State University, East Lansing, Michigan, United States of America
- * E-mail:
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21
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Jang E, Jeong M, Kim S, Jang K, Kang BK, Lee DY, Bae SC, Kim KS, Youn J. Infusion of Human Bone Marrow-Derived Mesenchymal Stem Cells Alleviates Autoimmune Nephritis in a Lupus Model by Suppressing Follicular Helper T-Cell Development. Cell Transplant 2015; 25:1-15. [PMID: 25975931 DOI: 10.3727/096368915x688173] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by the production of autoantibodies to components of the cell nucleus. These autoantibodies are predominantly produced with the help of follicular helper T (Tfh) cells and form immune complexes that trigger widespread inflammatory damage, including nephritis. In recent studies, mesenchymal stem cells (MSCs) elicited diverse, even opposing, effects in experimental and clinical SLE. Here we investigated the effect of human bone marrow-derived MSCs (hBM-MSCs) in a murine model of SLE, the F1 hybrid between New Zealand Black and New Zealand White strains (NZB/W). We found that infusion of female NZB/W mice with hBM-MSCs attenuated glomerulonephritis; it also decreased levels of autoantibodies and the incidence of proteinuria and improved survival. These effects coincided with a decrease in Tfh cells and downstream components. Infiltration of long-lived plasma cells into the inflamed kidney was also reduced in the hBM-MSC-treated mice. Importantly, hBM-MSCs directly suppressed the in vitro differentiation of naive CD4(+) T cells toward Tfh cells in a contact-dependent manner. These results suggest that MSCs attenuate lupus nephritis by suppressing the development of Tfh cells and the subsequent activation of humoral immune components. They thus reveal a novel mechanism by which MSCs regulate humoral autoimmune diseases such as SLE.
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Affiliation(s)
- Eunkyeong Jang
- Department of Anatomy and Cell Biology, Hanyang University, Seoul, Korea
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22
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Crampton SP, Morawski PA, Bolland S. Linking susceptibility genes and pathogenesis mechanisms using mouse models of systemic lupus erythematosus. Dis Model Mech 2015; 7:1033-46. [PMID: 25147296 PMCID: PMC4142724 DOI: 10.1242/dmm.016451] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Systemic lupus erythematosus (SLE) represents a challenging autoimmune disease from a clinical perspective because of its varied forms of presentation. Although broad-spectrum steroids remain the standard treatment for SLE, they have many side effects and only provide temporary relief from the symptoms of the disease. Thus, gaining a deeper understanding of the genetic traits and biological pathways that confer susceptibility to SLE will help in the design of more targeted and effective therapeutics. Both human genome-wide association studies (GWAS) and investigations using a variety of mouse models of SLE have been valuable for the identification of the genes and pathways involved in pathogenesis. In this Review, we link human susceptibility genes for SLE with biological pathways characterized in mouse models of lupus, and discuss how the mechanistic insights gained could advance drug discovery for the disease.
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Affiliation(s)
- Steve P Crampton
- Laboratory of Immunogenetics, National Institute of Allergic and Infectious Diseases, National Institutes of Health, Rockville, MD 20852, USA
| | - Peter A Morawski
- Laboratory of Immunogenetics, National Institute of Allergic and Infectious Diseases, National Institutes of Health, Rockville, MD 20852, USA
| | - Silvia Bolland
- Laboratory of Immunogenetics, National Institute of Allergic and Infectious Diseases, National Institutes of Health, Rockville, MD 20852, USA
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23
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Xu Z, Morel L. Contribution of B-1a cells to systemic lupus erythematosus in the NZM2410 mouse model. Ann N Y Acad Sci 2015; 1362:215-23. [PMID: 25728381 DOI: 10.1111/nyas.12607] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease of complex etiology in which B cells play a central role. An expanded number of B-1a cells have been consistently associated with murine lupus, and more recently with human SLE. We have identified Cdkn2c, a gene that controls cell cycle progression, as a key regulator of B-1a cell numbers and have associated Cdkn2c deficiency with autoimmune pathology, including the production of autoantibodies and the skewing of CD4(+) T cells toward inflammatory effector functions. We review the genetic studies that have led to these findings, as well as the possible mechanisms by which B-1a cell expansion and Cdkn2c deficiency are related to SLE pathogenesis.
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Affiliation(s)
- Zhiwei Xu
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, Florida
| | - Laurence Morel
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, Florida
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Pestka JJ, Vines LL, Bates MA, He K, Langohr I. Comparative effects of n-3, n-6 and n-9 unsaturated fatty acid-rich diet consumption on lupus nephritis, autoantibody production and CD4+ T cell-related gene responses in the autoimmune NZBWF1 mouse. PLoS One 2014; 9:e100255. [PMID: 24945254 PMCID: PMC4063768 DOI: 10.1371/journal.pone.0100255] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Accepted: 05/23/2014] [Indexed: 12/23/2022] Open
Abstract
Mortality from systemic lupus erythematosus (SLE), a prototypical autoimmune disease, correlates with the onset and severity of kidney glomerulonephritis. There are both preclinical and clinical evidence that SLE patients may benefit from consumption of n-3 polyunsaturated fatty acids (PUFA) found in fish oil, but the mechanisms remain unclear. Here we employed the NZBWF1 SLE mouse model to compare the effects of dietary lipids on the onset and severity of autoimmune glomerulonephritis after consuming: 1) n-3 PUFA-rich diet containing docosahexaenoic acid-enriched fish oil (DFO), 2) n-6 PUFA-rich Western-type diet containing corn oil (CRN) or 3) n-9 monounsaturated fatty acid (MUFA)-rich Mediterranean-type diet containing high oleic safflower oil (HOS). Elevated plasma autoantibodies, proteinuria and glomerulonephritis were evident in mice fed either the n-6 PUFA or n-9 MUFA diets, however, all three endpoints were markedly attenuated in mice that consumed the n-3 PUFA diet until 34 wk of age. A focused PCR array was used to relate these findings to the expression of 84 genes associated with CD4+ T cell function in the spleen and kidney both prior to and after the onset of the autoimmune nephritis. n-3 PUFA suppression of autoimmunity in NZBWF1 mice was found to co-occur with a generalized downregulation of CD4+ T cell-related genes in kidney and/or spleen at wk 34. These genes were associated with the inflammatory response, antigen presentation, T cell activation, B cell activation/differentiation and leukocyte recruitment. Quantitative RT-PCR of representative affected genes confirmed that n-3 PUFA consumption was associated with reduced expression of CD80, CTLA-4, IL-10, IL-18, CCL-5, CXCR3, IL-6, TNF-α and osteopontin mRNAs in kidney and/or spleens as compared to mice fed n-6 PUFA or n-9 MUFA diets. Remarkably, many of the genes identified in this study are currently under consideration as biomarkers and/or biotherapeutic targets for SLE and other autoimmune diseases.
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Affiliation(s)
- James J. Pestka
- Department of Food Science and Human Nutrition, Diagnostic Center for Population and Animal Health, Michigan State University, East Lansing, Michigan, United States of America
- Center for Integrative Toxicology, Diagnostic Center for Population and Animal Health, Michigan State University, East Lansing, Michigan, United States of America
- Department of Microbiology and Molecular Genetics, Diagnostic Center for Population and Animal Health, Michigan State University, East Lansing, Michigan, United States of America
| | - Laura L. Vines
- Department of Food Science and Human Nutrition, Diagnostic Center for Population and Animal Health, Michigan State University, East Lansing, Michigan, United States of America
- Center for Integrative Toxicology, Diagnostic Center for Population and Animal Health, Michigan State University, East Lansing, Michigan, United States of America
| | - Melissa A. Bates
- Department of Food Science and Human Nutrition, Diagnostic Center for Population and Animal Health, Michigan State University, East Lansing, Michigan, United States of America
- Center for Integrative Toxicology, Diagnostic Center for Population and Animal Health, Michigan State University, East Lansing, Michigan, United States of America
| | - Kaiyu He
- Center for Integrative Toxicology, Diagnostic Center for Population and Animal Health, Michigan State University, East Lansing, Michigan, United States of America
- Department of Microbiology and Molecular Genetics, Diagnostic Center for Population and Animal Health, Michigan State University, East Lansing, Michigan, United States of America
| | - Ingeborg Langohr
- Division of Anatomic Pathology, Diagnostic Center for Population and Animal Health, Michigan State University, East Lansing, Michigan, United States of America
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25
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Bender AT, Wu Y, Cao Q, Ding Y, Oestreicher J, Genest M, Akare S, Ishizaka ST, Mackey MF. Assessment of the translational value of mouse lupus models using clinically relevant biomarkers. Transl Res 2014; 163:515-32. [PMID: 24462761 DOI: 10.1016/j.trsl.2014.01.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 12/17/2013] [Accepted: 01/03/2014] [Indexed: 01/03/2023]
Abstract
Lupus is an autoimmune disease with a poorly understood etiology that manifests with a diverse pathology. This heterogeneity has been a challenge to clinical drug development efforts. A related difficulty is the uncertain translational power of animal models used for evaluating potential drug targets and candidate therapeutics, because it is unlikely that any 1 preclinical model will recapitulate the spectrum of human disease. Therefore, multiple models, along with an understanding of the immune mechanisms that drive them, are necessary if we are to use them to identify valid drug targets and evaluate candidate therapies successfully. To this end, we have characterized several different mouse lupus models and report their differences with respect to biomarkers and symptoms that are representative of the human disease. We compared the pristane-induced mouse lupus disease model using 3 different strains (DBA/1, SJL, BALB/c), and the spontaneous NZB x NZW F1(NZB/W) mouse model. We show that the models differ significantly in their autoantibody profiles, disease manifestations such as nephritis and arthritis, and expression of type I interferon-regulated genes. Similar to the NZB/W model, pristane-induced disease in SJL mice manifests with nephritis and proteinuria, whereas the pristane-treated DBA/1 mice develop arthritis and an interferon-driven gene signature that closely resembles that in human patients. The elucidation of each model's strengths and the identification of translatable biomarkers yields insight for basic lupus research and drug development, and should assist in the proper selection of models for evaluating candidate targets and therapeutic strategies.
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26
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Cuda CM, Misharin AV, Gierut AK, Saber R, Haines GK, Hutcheson J, Hedrick SM, Mohan C, Budinger GS, Stehlik C, Perlman H. Caspase-8 acts as a molecular rheostat to limit RIPK1- and MyD88-mediated dendritic cell activation. THE JOURNAL OF IMMUNOLOGY 2014; 192:5548-60. [PMID: 24808358 DOI: 10.4049/jimmunol.1400122] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Caspase-8, an executioner enzyme in the death receptor pathway, was shown to initiate apoptosis and suppress necroptosis. In this study, we identify a novel, cell death-independent role for caspase-8 in dendritic cells (DCs): DC-specific expression of caspase-8 prevents the onset of systemic autoimmunity. Failure to express caspase-8 has no effect on the lifespan of DCs but instead leads to an enhanced intrinsic activation and, subsequently, more mature and autoreactive lymphocytes. Uncontrolled TLR activation in a RIPK1-dependent manner is responsible for the enhanced functionality of caspase-8-deficient DCs, because deletion of the TLR-signaling mediator, MyD88, ameliorates systemic autoimmunity induced by caspase-8 deficiency. Taken together, these data demonstrate that caspase-8 functions in a cell type-specific manner and acts uniquely in DCs to maintain tolerance.
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Affiliation(s)
- Carla M Cuda
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Alexander V Misharin
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Angelica K Gierut
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Rana Saber
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - G Kenneth Haines
- Department of Pathology, School of Medicine, Yale University, New Haven, CT 06510
| | - Jack Hutcheson
- Division of Rheumatology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - Stephen M Hedrick
- Division of Biological Sciences, Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA 92093; and
| | - Chandra Mohan
- Division of Rheumatology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - G Scott Budinger
- Division of Pulmonary and Critical Care, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Christian Stehlik
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Harris Perlman
- Division of Rheumatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611;
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27
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Ripoll È, Merino A, Goma M, Aran JM, Bolaños N, de Ramon L, Herrero-Fresneda I, Bestard O, Cruzado JM, Grinyó JM, Torras J. CD40 gene silencing reduces the progression of experimental lupus nephritis modulating local milieu and systemic mechanisms. PLoS One 2013; 8:e65068. [PMID: 23799000 PMCID: PMC3683035 DOI: 10.1371/journal.pone.0065068] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Accepted: 04/22/2013] [Indexed: 12/26/2022] Open
Abstract
Lupus nephritis (LN) is an autoimmune disorder in which co-stimulatory signals have been involved. Here we tested a cholesterol-conjugated-anti-CD40-siRNA in dendritic cells (DC) in vitro and in a model of LPS to check its potency and tissue distribution. Then, we report the effects of Chol-siRNA in an experimental model of mice with established lupus nephritis. Our in vitro studies in DC show a 100% intracellular delivery of Chol-siRNA, with a significant reduction in CD40 after LPS stimuli. In vivo in ICR mice, the CD40-mRNA suppressive effects of our Chol-siRNA on renal tissue were remarkably sustained over a 5 days after a single preliminary dose of Chol-siRNA. The intra-peritoneal administration of Chol-siRNA to NZB/WF1 mice resulted in a reduction of anti-DNA antibody titers, and histopathological renal scores as compared to untreated animals. The higher dose of Chol-siRNA prevented the progression of proteinuria as effectively as cyclophosphamide, whereas the lower dose was as effective as CTLA4. Chol-siRNA markedly reduced insterstitial CD3+ and plasma cell infiltrates as well as glomerular deposits of IgG and C3. Circulating soluble CD40 and activated splenic lymphocyte subsets were also strikingly reduced by Chol-siRNA. Our data show the potency of our compound for the therapeutic use of anti-CD40-siRNA in human LN and other autoimmune disorders.
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Affiliation(s)
- Èlia Ripoll
- Laboratory of Experimental Nephrology, IDIBELL.Hospital Universitari de Bellvitge, L’Hospitalet, Barcelona, Spain
| | - Ana Merino
- Laboratory of Experimental Nephrology, IDIBELL.Hospital Universitari de Bellvitge, L’Hospitalet, Barcelona, Spain
| | - Montse Goma
- Pathology Department, Hospital Universitari de Bellvitge, L’Hospitalet, Barcelona, Spain
| | - Josep M. Aran
- Medical and Molecular Genetics Center, IDIBELL, L’Hospitalet, Barcelona, Spain
| | - Nuria Bolaños
- Laboratory of Experimental Nephrology, IDIBELL.Hospital Universitari de Bellvitge, L’Hospitalet, Barcelona, Spain
| | - Laura de Ramon
- Laboratory of Experimental Nephrology, IDIBELL.Hospital Universitari de Bellvitge, L’Hospitalet, Barcelona, Spain
| | - Immaculada Herrero-Fresneda
- Laboratory of Experimental Nephrology, IDIBELL.Hospital Universitari de Bellvitge, L’Hospitalet, Barcelona, Spain
| | - Oriol Bestard
- Laboratory of Experimental Nephrology, IDIBELL.Hospital Universitari de Bellvitge, L’Hospitalet, Barcelona, Spain
| | - Josep M. Cruzado
- Laboratory of Experimental Nephrology, IDIBELL.Hospital Universitari de Bellvitge, L’Hospitalet, Barcelona, Spain
| | - Josep M. Grinyó
- Laboratory of Experimental Nephrology, IDIBELL.Hospital Universitari de Bellvitge, L’Hospitalet, Barcelona, Spain
| | - Juan Torras
- Laboratory of Experimental Nephrology, IDIBELL.Hospital Universitari de Bellvitge, L’Hospitalet, Barcelona, Spain
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28
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Rasheed Z, Al-Shobaili HA, Al Robaee AA, Alzolibani AA, Wadi WIA, Khan MI, Al-Hamed HA. Preferential recognition of peroxynitrite damaged thymidine-monophosphate by anti-DNA autoantibodies in systemic lupus erythematosus. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2013; 31:736-51. [PMID: 23067125 DOI: 10.1080/15257770.2012.724135] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
This study was undertaken to investigate the role of peroxynitrite (ONOO(-)) modified thymine-5'-monophosphate (TMP) in the generation of anti-DNA autoantibodies in patients with systemic lupus erythematosus (SLE). TMP was exposed to ONOO(-) in vitro and challenged in vivo. TMP and ONOO(-)-modified-TMP were found to be nonimmunogenic in rabbits. TMP-linked-BSA and ONOO(-)-modified-TMP-BSA induced high titer antibodies. Induced antibodies against ONOO(-)-TMP-BSA show crossreactions with nucleic acids conformers. A high degree of specific binding by SLE autoantibodies with ONOO(-)-TMP-BSA was observed. Our novel results provide an important insight into the immunological basis of anti-DNA autoantibodies generation in SLE.
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Affiliation(s)
- Zafar Rasheed
- Department of Medical Biochemistry, College of Medicine, Qassim University, Buraidah, Saudi Arabia.
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29
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Ullal AJ, Pisetsky DS. The role of microparticles in the generation of immune complexes in murine lupus. Clin Immunol 2012; 146:1-9. [PMID: 23159786 DOI: 10.1016/j.clim.2012.10.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 10/05/2012] [Accepted: 10/06/2012] [Indexed: 12/31/2022]
Abstract
Systemic lupus erythematosus is a systemic inflammatory disease characterized by antibodies to nuclear molecules in association with immune complex deposition. As shown previously, microparticles (MPs), which are small membrane-bound vesicles released from dying and activated cells, contain nucleic acids and can form immune complexes found in patient blood. To assess the role of MPs in murine lupus, we used flow cytometry to measure the presence of MPs with bound IgG in the blood of MRL-lpr/lpr and NZB/W mice. These studies showed much higher numbers of MPs with bound IgG in the blood of MRL lpr/lpr compared to NZB/W mice. Furthermore, these studies showed that antibodies from MRL-lpr/lpr mice bound better to MPs from apoptotic cells than those from NZB/W mice. Together, these studies indicate important differences in the serological features of the two strains as reflected by the capacity of antibodies to bind to MPs.
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Affiliation(s)
- Anirudh J Ullal
- Duke University Medical Center, Department of Medicine, Durham, NC 27705, USA.
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