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Nocito C, Lubinsky C, Hand M, Khan S, Patel T, Seliga A, Winfield M, Zuluaga-Ramirez V, Fernandes N, Shi X, Unterwald EM, Persidsky Y, Sriram U. Centrally Acting Angiotensin-Converting Enzyme Inhibitor Suppresses Type I Interferon Responses and Decreases Inflammation in the Periphery and the CNS in Lupus-Prone Mice. Front Immunol 2020; 11:573677. [PMID: 33042154 PMCID: PMC7522287 DOI: 10.3389/fimmu.2020.573677] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/17/2020] [Indexed: 12/18/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by multi-organ damage. Neuropsychiatric lupus (NPSLE) is one of the most common manifestations of human SLE, often causing depression. Interferon-α (IFNα) is a central mediator in disease pathogenesis. Administration of IFNα to patients with chronic viral infections or cancers causes depressive symptoms. Angiotensin-converting enzyme (ACE) is part of the kallikrein-kinin/renin-angiotensin (KKS/RAS) system that regulates many physiological processes, including inflammation, and brain functions. It is known that ACE degrades bradykinin (BK) into inactive peptides. We have previously shown in an in vitro model of mouse bone-marrow-derived dendritic cells (BMDC) and human peripheral blood mononuclear cells that captopril (a centrally acting ACE inhibitor-ACEi) suppressed Type I IFN responsive gene (IRG) expression. In this report, we used the MRL/lpr lupus-prone mouse model, an established model to study NPSLE, to determine the in vivo effects of captopril on Type I IFN and associated immune responses in the periphery and brain and effects on behavior. Administering captopril to MRL/lpr mice decreased expression of IRGs in brain, spleen and kidney, decreased circulating and tissue IFNα levels, decreased microglial activation (IBA-1 expression) and reduced depressive-like behavior. Serotonin levels that are decreased in depression were increased by captopril treatment. Captopril also reduced autoantibody levels in plasma and immune complex deposition in kidney and brain. Thus, ACEi's may have potential for therapeutic use for systemic and NPSLE.
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Affiliation(s)
- Cassandra Nocito
- Department of Pathology and Laboratory Medicine, Temple University, Philadelphia, PA, United States
| | - Cody Lubinsky
- Department of Pathology and Laboratory Medicine, Temple University, Philadelphia, PA, United States
| | - Michelle Hand
- Department of Pathology and Laboratory Medicine, Temple University, Philadelphia, PA, United States
| | - Sabeeya Khan
- Department of Pathology and Laboratory Medicine, Temple University, Philadelphia, PA, United States
| | - Tulsi Patel
- Department of Pathology and Laboratory Medicine, Temple University, Philadelphia, PA, United States
| | - Alecia Seliga
- Department of Pathology and Laboratory Medicine, Temple University, Philadelphia, PA, United States
| | - Malika Winfield
- Department of Pathology and Laboratory Medicine, Temple University, Philadelphia, PA, United States
| | - Viviana Zuluaga-Ramirez
- Department of Pathology and Laboratory Medicine, Temple University, Philadelphia, PA, United States
| | - Nicole Fernandes
- Department of Pathology and Laboratory Medicine, Temple University, Philadelphia, PA, United States
| | - Xiangdang Shi
- Center for Substance Abuse Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
| | - Ellen M Unterwald
- Center for Substance Abuse Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
| | - Yuri Persidsky
- Department of Pathology and Laboratory Medicine, Temple University, Philadelphia, PA, United States
| | - Uma Sriram
- Department of Pathology and Laboratory Medicine, Temple University, Philadelphia, PA, United States
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Zhu H, Mi W, Luo H, Chen T, Liu S, Raman I, Zuo X, Li QZ. Whole-genome transcription and DNA methylation analysis of peripheral blood mononuclear cells identified aberrant gene regulation pathways in systemic lupus erythematosus. Arthritis Res Ther 2016; 18:162. [PMID: 27412348 PMCID: PMC4942934 DOI: 10.1186/s13075-016-1050-x] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 06/20/2016] [Indexed: 12/13/2022] Open
Abstract
Background Recent achievement in genetics and epigenetics has led to the exploration of the pathogenesis of systemic lupus erythematosus (SLE). Identification of differentially expressed genes and their regulatory mechanism(s) at whole-genome level will provide a comprehensive understanding of the development of SLE and its devastating complications, lupus nephritis (LN). Methods We performed whole-genome transcription and DNA methylation analysis in PBMC of 30 SLE patients, including 15 with LN (SLE LN+) and 15 without LN (SLE LN−), and 25 normal controls (NC) using HumanHT-12 Beadchips and Illumina Human Methy450 chips. The serum proinflammatory cytokines were quantified using Bio-plex Human Cytokine 27-plex assay. Differentially expressed genes and differentially methylated CpG were analyzed with GenomeStudio, R, and SAM software. The association between DNA methylation and gene expression were tested. Gene interaction pathways of the differentially expressed genes were analyzed by IPA software. Results We identified 552 upregulated genes and 550 downregulated genes in PBMC of SLE. Integration of DNA methylation and gene expression profiling showed that 334 upregulated genes were hypomethylated, and 479 downregulated genes were hypermethylated. Pathway analysis on the differential genes in SLE revealed significant enrichment in interferon (IFN) signaling and toll-like receptor (TLR) signaling pathways. Nine IFN- and seven TLR-related genes were identified and displayed step-wise increase in SLE LN− and SLE LN+. Hypomethylated CpG sites were detected on these genes. The gene expressions for MX1, GPR84, and E2F2 were increased in SLE LN+ as compared to SLE LN− patients. The serum levels of inflammatory cytokines, including IL17A, IP-10, bFGF, TNF-α, IL-6, IL-15, GM-CSF, IL-1RA, IL-5, and IL-12p70, were significantly elevated in SLE compared with NC. The levels of IL-15 and IL1RA correlated with their mRNA expression. The upregulation of IL-15 may be regulated by hypomethylated CpG sites in the promotor region of the gene. Conclusions Our study has demonstrated that significant number of differential genes in SLE were involved in IFN, TLR signaling pathways, and inflammatory cytokines. The enrichment of differential genes has been associated with aberrant DNA methylation, which may be relevant to the pathogenesis of SLE. Our observations have laid the groundwork for further diagnostic and mechanistic studies of SLE and LN. Electronic supplementary material The online version of this article (doi:10.1186/s13075-016-1050-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Honglin Zhu
- Department of Rheumatology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China.,Department of Immunology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Wentao Mi
- Department of Immunology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Hui Luo
- Department of Rheumatology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China.,Department of Immunology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Tao Chen
- Department of Immunology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Shengxi Liu
- Department of Immunology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Indu Raman
- Department of Immunology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Xiaoxia Zuo
- Department of Rheumatology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China.
| | - Quan-Zhen Li
- Department of Rheumatology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China. .,Department of Immunology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA.
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Donn R, De Leonibus C, Meyer S, Stevens A. Network analysis and juvenile idiopathic arthritis (JIA): a new horizon for the understanding of disease pathogenesis and therapeutic target identification. Pediatr Rheumatol Online J 2016; 14:40. [PMID: 27411317 PMCID: PMC4942903 DOI: 10.1186/s12969-016-0078-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 03/21/2016] [Indexed: 12/11/2022] Open
Abstract
Juvenile idiopathic arthritis (JIA) is a clinically diverse and genetically complex autoimmune disease. Currently, there is very limited understanding of the potential underlying mechanisms that result in the range of phenotypes which constitute JIA.The elucidation of the functional relevance of genetic associations with phenotypic traits is a fundamental problem that hampers the translation of genetic observations to plausible medical interventions. Genome wide association studies, and subsequent fine-mapping studies in JIA patients, have identified many genetic variants associated with disease. Such approaches rely on 'tag' single nucleotide polymorphisms (SNPs). The associated SNPs are rarely functional variants, so the extrapolation of genetic association data to the identification of biologically meaningful findings can be a protracted undertaking. Integrative genomics aims to bridge the gap between genotype and phenotype.Systems biology, principally through network analysis, is emerging as a valuable way to identify biological pathways of relevance to complex genetic diseases. This review aims to highlight recent findings in systems biology related to JIA in an attempt to assist in the understanding of JIA pathogenesis and therapeutic target identification.
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Affiliation(s)
- Rachelle Donn
- Musculoskeletal Research Group, The Centre For Musculoskeletal Research, University of Manchester, 2nd Floor, Stopford Building, Oxford Road, Manchester, M13 9PT, UK.
| | - Chiara De Leonibus
- Manchester Academic Health Sciences Centre, Institute for Human Development, Royal Manchester Children’s Hospital, 5th Floor Research, Oxford Road, Manchester, M13 9WL UK
| | - Stefan Meyer
- Stem Cell and Leukaemia Proteomics Laboratory, School of Cancer and Imaging Sciences, University of Manchester, Manchester, UK
| | - Adam Stevens
- Manchester Academic Health Sciences Centre, Institute for Human Development, Royal Manchester Children's Hospital, 5th Floor Research, Oxford Road, Manchester, M13 9WL, UK.
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Mosaad YM, Hammad A, Fawzy Z, El-Refaaey A, Tawhid Z, Hammad EM, Youssef LF, ElAttar EAA, Radwan DF, Fawzy IM. C1q rs292001 polymorphism and C1q antibodies in juvenile lupus and their relation to lupus nephritis. Clin Exp Immunol 2015; 182:23-34. [PMID: 26095468 DOI: 10.1111/cei.12666] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/01/2015] [Indexed: 12/17/2022] Open
Abstract
C1q deficiency is related strongly to systemic lupus erythematosus (SLE), but very few and inconsistent studies explored the single nucleotide polymorphisms of the C1q gene in relation to juvenile SLE (jSLE) and lupus nephritis (LN). The objective of this study was to analyse whether C1q rs 292001 polymorphism is associated with SLE and disease phenotype, especially nephritis, and to investigate the relation between this polymorphism and clinical data, treatment outcome, serum level of C1q protein and antibodies. Typing of C1q rs292001 polymorphism using restriction fragment length polymorphism and measuring serum levels of C1q protein and antibodies by enzyme-linked immunosorbent assay (ELISA) were performed for 130 children with SLE and 208 healthy controls. The A allele of C1q rs292001 was associated with jSLE and LN (P = 0·005 and 0·013, respectively) and the AA genotype was associated with jSLE (P = 0·036). Low serum levels of C1q protein were found in jSLE and LN (P < 0·001 and 0·009, respectively), and these levels were increased after treatment in patients with LN (P = 0·009) and active renal disease (P = 0·027). Higher titres of C1q antibodies were found in patients with LN (P = 0·015) and correlated negatively with C1q protein level (P < 0·001) and patient age (P = 0·04). The A allele and AA genotype of C1q rs292001 can be considered a susceptibility risk factor and the GG genotype could be considered protective for jSLE and LN in the studied cohort of Egyptian children. Decreased serum levels of C1q protein and increased titres of C1q antibodies may be involved in the pathogenesis of jSLE, especially LN.
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Affiliation(s)
- Y M Mosaad
- Clinical Immunology Unit, Clinical Pathology Department and Mansoura Research Center for Cord Stem Cells (MARC_CSC), Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - A Hammad
- Pediatric Nephrology Unit, Mansoura University Children's Hospital, Mansoura, Egypt
| | - Z Fawzy
- Clinical Immunology Unit, Clinical Pathology Department and Mansoura Research Center for Cord Stem Cells (MARC_CSC), Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - A El-Refaaey
- Pediatric Nephrology Unit, Mansoura University Children's Hospital, Mansoura, Egypt
| | - Z Tawhid
- Clinical Immunology Unit, Clinical Pathology Department and Mansoura Research Center for Cord Stem Cells (MARC_CSC), Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - E M Hammad
- Rheumatology and Rehabilitation Department, Mansoura University Hospital, Mansoura, Egypt
| | - L F Youssef
- Department of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - E A A ElAttar
- Pediatric Department, Mansoura General Hospital, Mansoura, Egypt
| | - D F Radwan
- Blood Bank, Central Talkha Hospital, Mansoura, Egypt
| | - I M Fawzy
- Laboratory Medicine Department, Mansoura Fever Hospital, Ministry of Health, Mansoura, Egypt
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