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SLE and dsDNA

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https://www.readbyqxmd.com/read/28918421/macrophage-activation-syndrome-at-the-onset-of-glucocorticoid-resistant-systemic-lupus-erythematosus-a-case-report
#1
Delia Tulbă, Marius Balea, Cristian Băicuș
INTRODUCTION: Macrophage activation syndrome (MAS) is a life-threatening hyperinflammatory state mediated by uncontrolled cytokine storm and haemophagocytosis. Although rarely reported, MAS might occur in systemic lupus erythematosus (SLE), notably as an inaugural manifestation. Glucocorticoids (GCs) are the cornerstone of SLE therapy. However, in some cases high doses of GCs are required to achieve remission (i.e. glucocorticoid-resistance), leading to significant side effects. CASE REPORT: A 28-year-old Romani male was admitted to our hospital for polyarthralgia, polyserositis and fatigability...
September 16, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28898254/serum-levels-of-adiponectin-and-leptin-as-biomarkers-of-proteinuria-in-lupus-nephritis
#2
Valeria Diaz-Rizo, David Bonilla-Lara, Laura Gonzalez-Lopez, Dalia Sanchez-Mosco, Nicte S Fajardo-Robledo, Edsaul E Perez-Guerrero, N Alejandra Rodriguez-Jimenez, A Miriam Saldaña-Cruz, M Luisa Vazquez-Villegas, Eduardo Gomez-Bañuelos, Monica Vazquez-Del Mercado, E German Cardona-Muñoz, David Cardona-Muller, Xochitl Trujillo, Miguel Huerta, Mario Salazar-Paramo, Jorge I Gamez-Nava
INTRODUCTION: There are controversial results about the role of serum leptin and adiponectin levels as biomarkers of the severity of proteinuria in lupus nephritis. OBJECTIVE: The aim of this study was to evaluate the relationship between serum leptin and adiponectin levels with severity of proteinuria secondary to lupus nephritis (LN). METHODS: In a cross-sectional study, 103 women with systemic lupus erythematosus (SLE) were evaluated for kidney involvement...
2017: PloS One
https://www.readbyqxmd.com/read/28882929/rhob-blockade-selectively-inhibits-autoantibody-production-in-autoimmune-models-of-rheumatoid-arthritis-and-lupus
#3
Laura Mandik-Nayak, James B DuHadaway, Jennifer Mulgrew, Elizabeth Pigott, Kaylend Manley, Summer Sedano, George C Prendergast, Lisa D Laury-Kleintop
During the development of autoimmune disease, a switch occurs in the antibody repertoire of B cells favoring the production of pathogenic versus non-pathogenic autoantibodies. However, there is limited knowledge concerning how this pivotal step occurs. Here we present genetic and pharmacological evidence of a positive modifier function for the vesicular small GTPase RhoB in specifically mediating the generation of pathogenic autoantibodies and disease progression in the K/BxN preclinical model of inflammatory arthritis...
September 7, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28862243/association-of-anti-clic2-and-anti-hmgb1-autoantibodies-with-higher-disease-activity-in-systemic-lupus-erythematosus-patients
#4
C S Syahidatulamali, W G Wan Syamimee, Y Nor Azwany, K K Wong, C H Che Maraina
BACKGROUND: Systemic lupus erythematosus (SLE) is a systemic autoimmune disease characterized by numerous autoantibodies. In this study, we investigated the presence of anti-chloride intracellular channel 2 (anti-CLIC2) and anti-high mobility group box 1 (anti-HMGB1) autoantibodies in SLE patients (n = 43) versus healthy controls ([HCs] n = 43), and their association with serological parameters (antinuclear antibody [ANA], anti-double-stranded DNA [anti-dsDNA], and C-reactive protein [CRP]) and disease activity using Systemic Lupus Erythematosus Disease Activity Index (SLEDAI) score (active or inactive)...
August 31, 2017: Journal of Postgraduate Medicine
https://www.readbyqxmd.com/read/28859328/are-interferon-related-biomarkers-advantageous-for-monitoring-disease-activity-in-systemic-lupus-erythematosus-a-longitudinal-benchmark-study
#5
Thomas Rose, Andreas Grützkau, Jens Klotsche, Philipp Enghard, Alexandra Flechsig, Johannes Keller, Gabriela Riemekasten, Andreas Radbruch, Gerd-Rüdiger Burmester, Thomas Dörner, Falk Hiepe, Robert Biesen
Objective: To determine the clinical value of six traditional and three IFN-related biomarkers in monitoring disease activity (DA) in SLE. Methods: Prospective longitudinal study of IFNα, IFNγ-inducible protein 10 (IP-10) and sialic acid-binding Ig-like lectin 1 (SIGLEC1) vs antibodies against dsDNA (ELISA and Farr radioimmunoassay), dsDNA-complexed nucleosomes (anti-dsDNA-NcX: ELISA), nucleosomes (ANuA: ELISA) and complement C3/C4 for correlation with DA (measured by BILAG 2004 index) in 26 SLE patients (77 visits)...
September 1, 2017: Rheumatology
https://www.readbyqxmd.com/read/28836661/self-dsdna-in-the-pathogenesis-of-systemic-lupus-erythematosus
#6
REVIEW
Yunqiang Bai, Yanli Tong, Yi Liu, Hongbo Hu
Systemic lupus erythematosus (SLE) is a systemic and polyetiological autoimmune disease characterized by the production of antibodies to autologous double stranded DNA (dsDNA) which serve as the diagnostic and prognostic marker. Defective clearance of apoptotic material, together with neutrophil extracellular traps (NETs), provides abundant chromatin or self-dsDNA to trigger the production of anti-dsDNA antibodies, although the mechanisms remain to be elucidated. In SLE patients, immune complexes (IC) of dsDNA and its autoantibodies, triggers the robust type I interferon (IFN-I) production through intracellular DNA sensors, which drives the adaptive immune system to break down self-tolerance...
August 24, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28830352/jak-inhibitor-has-the-amelioration-effect-in-lupus-prone-mice-the-involvement-of-ifn-signature-gene-downregulation
#7
Keigo Ikeda, Kunihiro Hayakawa, Maki Fujishiro, Mikiko Kawasaki, Takuya Hirai, Hiroshi Tsushima, Tomoko Miyashita, Satoshi Suzuki, Shinji Morimoto, Naoto Tamura, Kenji Takamori, Hideoki Ogawa, Iwao Sekigawa
BACKGROUND: We previously reported that JAK-STAT-pathway mediated regulation of IFN-regulatory factor genes could play an important role in SLE pathogenesis. Here, we evaluated the efficacy of the JAK inhibitor tofacitinib (TOFA) for controlling IFN signalling via the JAK-STAT pathway and as a therapeutic for SLE. RESULTS: We treated NZB/NZW F1 mice with TOFA and assessed alterations in their disease, pathological, and immunological conditions. Gene-expression results obtained from CD4(+) T cells (SLE mice) and CD3(+) T cells (human SLE patients) were measured by DNA microarray and qRT-PCR...
August 22, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28820362/characterization-of-patients-with-systemic-lupus-erythematosus-who-meet-the-diagnostic-criteria-for-tafro-syndrome
#8
E Hasegawa, H Sato, Y Wada, K Takai, A Wakamatsu, Y Nozawa, T Nakatsue, T Kuroda, Y Suzuki, M Nakano, I Narita
Purpose TAFRO syndrome is a novel disorder manifesting as fever, anasarca, thrombocytopenia, renal insufficiency and organomegaly, and its etiology has not been clarified. The aim of this study was to elucidate similarities and differences between systemic lupus erythematosus (SLE) and TAFRO syndrome. Methods We examined 46 consecutive patients diagnosed with SLE and determined whether they meet the proposed diagnostic criteria for TAFRO syndrome (2015 version). Results Of the 46 patients with SLE, four (8...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28818516/autoimmune-potential-of-perchloroethylene-role-of-lipid-derived-aldehydes
#9
Gangduo Wang, Jianling Wang, G A Shakeel Ansari, M Firoze Khan
Tetrachloroethene (perchloroethylene, PCE), an ubiquitous environmental contaminant, has been implicated in inducing autoimmunity/autoimmune diseases (ADs), including systemic lupus erythematosus (SLE) and scleroderma in humans. However, experimental evidence suggesting the potential of PCE in mediating autoimmunity is lacking. This study was, therefore, undertaken to explore PCE's potential in inducing/exacerbating an autoimmune response. Six-week old female MRL+/+ mice, in groups of 6 each, were treated with PCE (0...
August 14, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28800777/bortezomib-treatment-induces-a-higher-mortality-rate-in-lupus-model-mice-with-a-higher-disease-activity
#10
Tomoko Ikeda, Hiroshi Fujii, Masato Nose, Yukiko Kamogawa, Tsuyoshi Shirai, Yuko Shirota, Tomonori Ishii, Hideo Harigae
BACKGROUND: Bortezomib (Bz) is a proteasome inhibitor that directly targets antibody-producing plasma cells. We recently reported the first randomized control trial that evaluated the effects of Bz in patients with systemic lupus erythematosus (SLE). In that study, we demonstrated that Bz treatment is associated with many adverse reactions in patients with refractory disease. In the present study, we examine the therapeutic and toxic effects of Bz on MRL/MpJ-lpr/lpr (MRL/lpr) mice with severe disease activity...
August 11, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28790444/anti-smd1-antibodies-are-associated-with-renal-disorder-seizures-and-pulmonary-arterial-hypertension-in-chinese-patients-with-active-sle
#11
Chaojun Hu, Mengtao Li, Jian Liu, Junyan Qian, Dong Xu, Shulan Zhang, Ping Li, Jiulang Zhao, Xinping Tian, Xiaofeng Zeng
Detection of autoantibodies in systemic lupus erythematosus (SLE) plays an important role in timely diagnosis and earlier treatment of SLE. In this study, we used a SmD1 polypeptide-based ELISA to determine anti-SmD1 antibody in 269 SLE, including100 naïve (had not been treated with steroids or immunosuppressants at study inception) SLE patients and 169 non-naive SLE patients; 233 controls with other rheumatic diseases (RDC) (70 RA, 40 AS, 73SSc, and 50 SS), and 110 healthy controls (HC) group. The positive rate of anti-SmD1 among all SLE patients was 60...
August 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28754800/frontline-science-tim-3-mediated-dysfunctional-engulfment-of-apoptotic-cells-in-sle
#12
Di Zhao, Min Guo, Bing Liu, Qinghai Lin, Tingting Xie, Qianqian Zhang, Xiaoxia Jia, Qiang Shu, Xiaohong Liang, Lifen Gao, Chunhong Ma
T cell Ig and mucin domain-containing molecule 3 (Tim-3) has been found to play important roles in autoimmune diseases, but whether Tim-3-mediated engulfment of apoptotic cells is involved in systemic lupus erythematosus (SLE) remains to be elucidated. In this study, we verified the role of human Tim-3 (hTim-3) as the receptor of phosphatidylserine (PS) in human embryonic kidney (HEK)293 cells, which initiated the engulfment of apoptotic cells. Both IgV and the mucin domain of Tim-3 were crucial in the phagocytosis of apoptotic cells, and there existed the key cytoplasmic domain for signal transduction...
July 28, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28753077/low-dose-cyclosporine-a-in-the-treatment-of-resistant-proliferative-lupus-nephritis
#13
Marjan Sheikholeslami, Mehrzad Hajialilo, Seyed Sadreddin Rasi Hashemi, Aida Malek Mahdavi, Morteza Gojazadeh, Alireza Khabbazi
OBJECTIVE: This study aimed to evaluate long-term efficacy of low dose cyclosporine A (CsA) in the treatment of resistant proliferative lupus nephritis. METHODS: In this retrospective study, patients with biopsy proven proliferative lupus nephritis who were unresponsive to combination therapy with steroid plus mycophenolate mofetil (MMF) or cyclophosphamide (CYC) and had been treated with CsA were included. Efficacy monitoring was based on the systemic lupus erythematosus (SLE) disease activity index, dose of prednisolone, serum complement, anti-double stranded DNA (anti-dsDNA) titration, urine analysis, proteinuria, creatinine clearance, remission of the renal disease, renal survival and involvement of other organs...
July 28, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28741087/the-performance-of-different-anti-dsdna-autoantibodies-assays-in-chinese-systemic-lupus-erythematosus-patients
#14
Jiangfeng Zhao, Kaiwen Wang, Xiaodong Wang, Ting Li, Li Guo, Liyang Gu, Zhiwei Chen, Fangfang Sun, Haiting Wang, Jiajie Li, Jiaxian Huang, Peng Zhang, Yang Tang, Shuang Ye
To compare the performance of different commercial anti-dsDNA autoantibody assays, including multiplex-based immunoassay (Bio-Plex), Farr radioimmunoassay (Farr), ELISA, chemiluminescent immunoassay (CLIA), and Crithidia Luciliae indirect immunofluorescence test (CLIFT) in Chinese patients with systemic lupus erythematosus (SLE). SLE patients (n = 119) as well as healthy controls (n = 200) and disease controls (n = 100) were recruited, and serum anti-dsDNA autoantibodies were detected by Bio-Plex, Farr, two ELISA assays (Medical & Biological Laboratories-ELISA, EUROIMMU-ELISA), CLIA, and a standard CLIFT...
July 25, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28734074/association-of-clinical-and-serological-parameters-of-systemic-lupus-erythematosus-patients-with-epstein-barr-virus-antibody-profile
#15
Chougule D, Nadkar M, Rajadhyaksha A, Pandit P, Surve P, Dawkar N, Khadilkar P, Patwardhan M, Kaveri Sv, Ghosh K, Pradhan V
Epstein-Barr viral infection is one of the known environmental factors involved in development of Systemic Lupus Erythematous (SLE). Though not much is known about the exact role of EBV in SLE pathogenesis, the theory of switching of lytic and lysogenic cycles of Epstein-Barr virus in memory B-cells fits well with the periods of waning disease activity and intermittent flares in SLE patients. In this study, we investigate the association of EBV antibody profile with clinical and serological parameters in SLE...
July 22, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28719617/microrna-155-deficiency-leads-to-decreased-autoantibody-levels-and-reduced-severity-of-nephritis-and-pneumonitis-in-pristane-induced-lupus
#16
Harald Leiss, Wilhelm Salzberger, Barbara Jacobs, Irina Gessl, Nicolas Kozakowski, Stephan Blüml, Antonia Puchner, Attila Kiss, Bruno K Podesser, Josef S Smolen, Georg H Stummvoll
OBJECTIVE: We herein examine the role of endogenous miR155 in the development of systemic manifestations in pristane induced lupus. MATERIALS AND METHODS: Systemic lupus in miR155-deficient and wild type mice was induced upon injection of pristane and analyzed after 8 months, PBS-injected mice served as controls. Glomerulonephritis and pneumonitis were quantified using the kidney biopsy score and a newly adapted histomorphometric image analysis system; lung tissue was further analyzed by tissue cytometry...
2017: PloS One
https://www.readbyqxmd.com/read/28712818/systemic-lupus-erythematosus-and-thyroid-disease-experience-in-a-single-medical-center-in-taiwan
#17
Yu-Chuan Liu, Wen-Ya Lin, Ming-Chin Tsai, Lin-Shien Fu
BACKGROUND: To investigate the association of systemic lupus erythematosus (SLE) with thyroid diseases in a medical center in central Taiwan. METHODS: This is a retrospective cohort of 2796 SLE patients in a tertiary referral medical center from 2000 to 2013. We screened SLE by catastrophic illness registration from national insurance bureau; and thyroid diseases by ICD 9 codes, then confirmed by thyroid function test, auto-antibody, medical and/or surgical intervention...
June 28, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28709914/the-ratio-of-circulating-follicular-t-helper-cell-to-follicular-t-regulatory-cell-is-correlated-with-disease-activity-in-systemic-lupus-erythematosus
#18
Bihua Xu, Shuang Wang, Mianjing Zhou, Yuefang Huang, Rong Fu, Chaohuan Guo, Jingxian Chen, Jijun Zhao, Felicia Gaskin, Shu Man Fu, Niansheng Yang
Follicular T regulatory (Tfr) cells inhibit follicular T helper (Tfh) cells mediated B cell responses. Tfh cells are involved in the pathogenesis of systemic lupus erythematosus (SLE). However, the role of Tfr cells in SLE remains unclear. The frequency of circulating Tfr and Tfh cells were examined in SLE patients and healthy controls. The frequency of circulating Tfr cell decreased and Tfh/Tfr ratio increased in SLE patients. Serum anti-dsDNA antibody level positively correlated with frequency of Tfh cells and Tfh/Tfr ratios but negatively correlated with the frequency of Tfr cells...
July 12, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28678535/a-fluorescence-sedimentation-assay-for-dsdna-antibodies
#19
K Duus, A H Draborg, E Güven, Y M Moreno, S Jacobsen, C T Nielsen, G Houen
The Farr assay is a radioimmunoassay (RIA) for dsDNA antibodies, based on antibody precipitation using ammonium sulphate and quantification using radio-labelled dsDNA. The RIA-Farr assay offers outstanding clinical specificity and sensitivity for systemic lupus erythematosus (SLE) compared to other assays but does also present some disadvantages as it utilizes radioactive-labelled dsDNA and requires high levels of technical expertise for safe handling. Here, a new precipitation assay, 'Fluoro-Farr' assay, is described...
July 5, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28665157/sex-related-differences-in-autoimmune-induced-lung-lesions-in-mrl-mpj-fas-lpr-mice-are-mediated-by-the-development-of-mediastinal-fat-associated-lymphoid-clusters
#20
Yaser Hosny Ali Elewa, Osamu Ichii, Yasuhiro Kon
MRL/MpJ-Fas(lpr) (lpr) mice are a model for autoimmune diseases such as systemic lupus erythematosus (SLE). These diseases mainly affect women, with a 10:1 female-to-male ratio, and cause pleuropulmonary lesions. We previously revealed a correlation between mediastinal fat-associated lymphoid cluster (MFALC) development and cellular infiltration in the lungs of lpr male mice; however, we did not report on MFALCs in females. The purpose of this investigation was to reveal sex-related differences in MFALCs in lpr mice...
June 30, 2017: Autoimmunity
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