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https://www.readbyqxmd.com/read/28821990/upregulation-of-cd16-monocyte-subsets-in-systemic-lupus-erythematous-patients
#1
Ziyan Wu, Shulan Zhang, Lidan Zhao, Yunyun Fei, Li Wang, Jing Li, Xiaoting Wen, Xiaofeng Zeng, Fengchun Zhang, Yongzhe Li
Monocytes are an important component in the innate immune system. However, studies to date have failed to conclude whether their levels are altered in patients with systemic lupus erythematosus (SLE). We applied the cytodiff counting method and comprehensively measured the circulating levels of distinct white blood cell (WBC) subsets, including CD16+, CD16-, and total monocytes, in 61 SLE patients as well as in 203 age-matched healthy controls (HCs). The absolute number of CD16- monocytes, total monocytes, immature granulocytes, mature neutrophils, total neutrophils, and T cell blasts was significantly higher, that of non-cytotoxic T lymphocytes, cytotoxic T + NK lymphocytes, T + NK lymphocytes, total lymphocytes, basophils, and eosinophils significantly lower (all p < 0...
August 19, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28818832/b-cell-ox40l-supports-t-follicular-helper-cell-development-and-contributes-to-sle-pathogenesis
#2
Andrea Cortini, Ursula Ellinghaus, Talat H Malik, Deborah S Cunningham Grahman, Marina Botto, Timothy James Vyse
OBJECTIVES: TNFSF4 (encodes OX40L) is a susceptibility locus for systemic lupus erythematosus (SLE). Risk alleles increase TNFSF4 expression in cell lines, but the mechanism linking this effect to disease is unclear, and the OX40L-expressing cell types mediating the risk are not clearly established. Blockade of OX40L has been demonstrated to reduce disease severity in several models of autoimmunity, but not in SLE. We sought to investigate its potential therapeutic role in lupus. METHODS: We used a conditional knockout mouse system to investigate the function of OX40L on B and T lymphocytes in systemic autoimmunity...
August 17, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28818099/biosemantics-guided-gene-expression-profiling-of-sj%C3%A3-gren-s-syndrome-a-comparative-analysis-with-systemic-lupus-erythematosus-and-rheumatoid-arthritis
#3
Nirav R Shah, Braxton D Noll, Craig B Stevens, Michael T Brennan, Farah B Mougeot, Jean-Luc C Mougeot
BACKGROUND: Sjögren's syndrome (SS) shares many clinical and pathological similarities with systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA). These autoimmune diseases mostly affect women. In this study, concept profile analysis (CPA) and gene expression meta-analysis were used to identify genes potentially involved in SS pathogenesis. METHODS: Human genes associated with SS, SLE, and RA were identified using the CPA tool, Anni 2.1. The differential mRNA expression of genes common to SS and SLE (SS-SLE) was determined in female peripheral blood mononuclear cells (PBMCs) using NCBI-GEO2R...
August 17, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28814662/irgm1-coordinately-regulates-autoimmunity-and-host-defense-at-select-mucosal-surfaces
#4
Kathleen M Azzam, Jennifer H Madenspacher, Derek W Cain, Lihua Lai, Kymberly M Gowdy, Prashant Rai, Kyathanahalli Janardhan, Natasha Clayton, Willie Cunningham, Heather Jensen, Preeyam S Patel, John F Kearney, Gregory A Taylor, Michael B Fessler
The pathogenesis of primary Sjogren's syndrome (SS), an autoimmune disease that targets the mucosa of exocrine tissues, is poorly understood. Although several mouse models have been developed that display features of SS, most of these are within the larger context of a lupus-like presentation. Immunity-related GTPase family M protein 1 (Irgm1) is an interferon-inducible cytoplasmic GTPase that is reported to regulate autophagy and mitochondrial homeostasis. Here, we report that naive Irgm1-/- mice display lymphocytic infiltration of multiple mucosal tissues including the lung in a manner reminiscent of SS, together with IgA class-predominant autoantibodies including anti-Ro and anti-La...
August 17, 2017: JCI Insight
https://www.readbyqxmd.com/read/28805301/the-lymphocytes-stimulation-induced-dna-release-a-phenomenon-similar-to-netosis
#5
Yermis Carolina Rocha, Mauricio Rojas, Gloria Vásquez, Juan López
The release of DNA into the extracellular milieu by neutrophil during a process called NETosis has been postulated as an additional source of autoantigens; a process believed to be important in the pathogenesis of some autoimmune disease, such as Systemic Lupus Erythematosus (SLE). However, it is not established if the B and T cells undergo the release of DNA to the extracellular milleu, in response to different stimuli. In this study, it was observed that, the treatment of B and T cells with PMA, ionomycin, and the serum from patients with SLE induced the extracellular DNA presence in B and T cells...
August 11, 2017: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/28801578/basophils-contribute-to-pristane-induced-lupus-like-nephritis-model
#6
Barbara Dema, Yasmine Lamri, Christophe Pellefigues, Emeline Pacreau, Fanny Saidoune, Caroline Bidault, Hajime Karasuyama, Karim Sacré, Eric Daugas, Nicolas Charles
Lupus nephritis (LN), one of the most severe outcomes of systemic lupus erythematosus (SLE), is initiated by glomerular deposition of immune-complexes leading to an inflammatory response and kidney failure. Autoantibodies to nuclear antigens and autoreactive B and T cells are central in SLE pathogenesis. Immune mechanisms amplifying this autoantibody production drive flares of the disease. We previously showed that basophils were contributing to LN development in a spontaneous lupus-like mouse model (constitutive Lyn (-/-) mice) and in SLE subjects through their activation and migration to secondary lymphoid organs (SLOs) where they amplify autoantibody production...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28800401/lupus-nephritis-and-b-cell-targeting-therapy
#7
Matthias Cassia, Federico Alberici, Maurizio Gallieni, David Jayne
Lupus Nephritis (LN) is a severe manifestation of Systemic Lupus Erythematosus (SLE) with a significant prognostic impact. Over a prolonged course, an exhaustion of treatment alternatives may occur and further therapeutic options are needed. B cells play a pivotal role in disease pathogenesis and represent an attractive therapeutic target. Areas covered: This review provides an update regarding targeting B cells in LN. The rational for this approach, as well as currently available and future targets are discussed...
August 18, 2017: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/28800143/immunohistochemistry-reveals-an-increased-proportion-of-myc-positive-cells-in-subcutaneous-panniculitis-like-t-cell-lymphoma-compared-with-lupus-panniculitis
#8
Sebastian Fernandez-Pol, Danielle De Stefano, Jinah Kim
BACKGROUND: Subcutaneous panniculitis-like T-cell lymphoma (SPTCL) is a malignant primary cutaneous T-cell lymphoma that shares significant clinical, histopathologic, and immunophenotypic overlap with lupus erythematosus panniculitis (LEP). METHODS: We performed immunohistochemistry for the MYC oncoprotein on 23 cases of SPTCL (one CD8 negative) and 12 cases of LEP to evaluate if there are quantitative or qualitative differences in protein expression of this marker in these entities...
August 11, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28767989/report-of-a-rare-case-of-histiocytic-necrotizing-lymphadenitis-with-bilateral-pleural-effusion-diagnosed-via-cervical-lymph-node-biopsy
#9
Xuchun Liu, Shubin Huang, Guohua Jiang
CONTEXT: Histiocytic necrotizing lymphadenitis (HNL) is a rare disorder that is often benign and self-limiting. There have been reports of co-occurrence of HNL with other diseases, including systemic lupus erythematosus, hemophagocytic syndrome and antiphospholipid syndrome. CASE REPORT: Here, we report a case in which a patient experienced unexplained fever, swelling of the cervical lymph node and bilateral pleural effusion and was ultimately diagnosed with HNL based on results from a lymph node biopsy...
July 31, 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28764616/effector-t-cells-are-expanded-in-systemic-lupus-erythematosus-patients-with-high-disease-activity-and-damage-indexes
#10
S Piantoni, F Regola, A Zanola, L Andreoli, F Dall'Ara, A Tincani, P Airo'
Background and objectives T-cell activation may be one of the pathogenic mechanisms of systemic lupus erythematosus (SLE). After repeated antigenic stimulation, T-cells undergo different modifications, leading to the differentiation into effector memory T-cells (CCR7-CD45RA-) and terminally differentiated effector memory (TDEM) T-cells (CCR7-CD45RA+). Similarly, down-modulation of CD28 may lead to the expansion of the CD28- T-cells, a subpopulation with peculiar effector activities. The aim of this study was the characterization of T-cell phenotype in a cohort of patients with SLE according to disease activity and damage index...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28763887/-the-diagnosis-and-treatment-of-systemic-lupus-erythematosus-complicated-with-hydrocephalus
#11
B T Ma, H X Yin, H Wu, J B Chang, X Zhang, L Wang, X M Leng, W B Ma, Y N Li, R Z Wang, J J Wei
Objective: To investigate the pathogenesis and management of the hydrocephalus in patients with systemic lupus erythematosus (SLE). Methods: Eight cases of hospitalized lupus patients with hydrocephalus in Peking Union Medical College Hospital from Jan 1990 to Mar 2017 were analyzed retrospectively.We collected the patients' medical records including medical history, CT and/or MRI images and analysis of cerebrospinal fluid via lumbar puncture in order to investigate the pathogenesis of the hydrocephalus in patients with SLE and summarize treatment experience...
July 18, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28763101/relevant-genetic-polymorphisms-and-kidney-expression-of-tlr5-and-tlr9-in-lupus-nephritis
#12
Nesrine Elloumi, Raouia Fakhfakh, Olfa Abida, Lobna Ayadi, Sameh Marzouk, Hend Hachicha, Mohamed Fourati, Zouhir Bahloul, Mohamed Nabil Mhiri, Khawla Kammoun, Hatem Masmoudi
Toll-like receptor (TLR) genetic polymorphisms may modify their expression causing inflammatory disorders and influencing both susceptibility and severity of lupus erythematosus. We aim to determine whether TLR5 and TLR9 genes polymorphisms are implicated in the susceptibility to systemic lupus erythematosus (SLE) and lupus nephritis (LN) and to evaluate their expressions and distributions in renal LN patients' biopsies. The frequencies of 2 SNP in TLR9 gene and 1 in TLR5 gene was examined in 106 SLE patients (among them 37 LN patients) and in 200 matched controls by PCR-RFLP analysis...
August 1, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28752372/the-cutaneous-spectrum-of-lupus-erythematosus
#13
REVIEW
Simone Ribero, Savino Sciascia, Luca Borradori, Dan Lipsker
Systemic lupus erythematosus is a complex autoimmune disease with a wide spectrum of clinical and immunopathological features. Cutaneous and articular manifestations are the most common signs in patients with systemic lupus erythematosus. We here review the pathogenesis and the new classification of cutaneous lupus erythemathosus with a discussion of the significance of the various cutaneous signs. The lesions are classified according to the level of the cellular infiltrate and tissue damage in the epidermis, dermis, and/or subcutis...
July 27, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28745692/-changes-in-the-complement-system-in-membranoproliferative-glomerulonephritis
#14
V A Yurova, L A Bobrova, N L Kozlovskaya, Yu V Korotchaeva, A G Serova, L V Kozlov, S S Andina, K A Demyanova, A M Kuchieva, S V Roshchupkina
AIM: To compare the clinical manifestations membranoproliferative glomerulonephritis (MPGN) in its idiopathic variant, lupus nephritis (LN), and C3 glomerulopathy (C3-GP), by comparing them with changes in the complement system. SUBJECTS AND METHODS: The clinic of nephrology followed up 42 patients with different types of MPGN in 2013 to 2015. The study included 35 patients divided into 3 groups: 1) 8 patients with C3-GP, 2) 13 with idiopathic MPGN; 3) 14 with Class IV LN...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28745222/impact-of-hydroxyl-radical-modified-human-serum-albumin-autoantigens-in-systemic-lupus-erythematosus
#15
Md Asad Khan, Khursheed Alam, Ghulam Md Ashraf, M Moshahid A Rizvi
Free radicals are important mediators for cell toxicity and pathogenesis of diseases. Reactive oxygen species (ROS) have been generated broadly in inflammatory diseases including autoimmune diseases. ROS have been not only associated with the initiation and progression of the autoimmune response but also in amplification and exploring to novel epitopes, through the unveiling of antigenic determinants. This review explores the involvement of ROS in the pathophysiology of non-organ specific autoimmune diseases like systemic lupus erythematosus (SLE)...
July 25, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/28741130/epigenetic-involvement-in-etiopathogenesis-and-implications-in-treatment-of-systemic-lupus-erythematous
#16
REVIEW
Arron Munggela Foma, Saeed Aslani, Jafar Karami, Ahmadreza Jamshidi, Mahdi Mahmoudi
BACKGROUND: Recent researches in the field of genetics have extended our knowledge through the discovery of genetic factors associated with autoimmune diseases (AID). Genetics by itself, however, cannot elucidate all the uncertainties encountered in the etiopathology of AID. On the other hand, incomplete harmony in the prevalence of AID in identical twins suggests that non-genetic factors may play an important role in determining the disease susceptibility. Besides, epigenetics, which is defined by changes in gene expression without a corresponding change in the DNA sequences, has come in to provide new awareness in the disease etiopathology by bridging the genetic and epigenetic factors...
July 24, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28736280/the-serine-threonine-protein-phosphatase-2a-controls-autoimmunity
#17
Amir Sharabi, Isaac R Kasper, George C Tsokos
Protein phosphatase 2A (PP2A) is the first Ser/Thr phosphatase recognized to contribute to human and murine lupus immunopathology. PP2A expression in SLE is controlled both epigenetically and genetically, and it is increased in patients with SLE, which contributes to decreased IL-2 production, decreased CD3ζ and increased FcRγ expression on the surface of T cells, increased CREMα expression, hypomethylation of genes associated with SLE pathogenesis, and increased IL-17 production. B regulatory subunit of PP2A regulates IL-2 deprivation-induced T cell death and is decreased in SLE patients...
July 20, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28734074/association-of-clinical-and-serological-parameters-of-systemic-lupus-erythematosus-patients-with-epstein-barr-virus-antibody-profile
#18
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/28721860/one-year-in-review-2017-systemic-lupus-erythematosus
#19
REVIEW
Giuliana Maria Concetta La Paglia, Maria Comasia Leone, Gemma Lepri, Roberta Vagelli, Eleonora Valentini, Alessia Alunno, Chiara Tani
Systemic lupus erythematosus (SLE) is a chronic autoimmune disease that predominately affects women. It is characterised by a broad spectrum of clinical manifestations, however, its course and organ involvement are unpredictable. Although over the last few decades an improvement in survival for SLE patients has been observed, pathogenic mechanisms underlying this disease are still unclear. Comorbidities, due to both disease and treatment, as well as multiple aspects of SLE, are under intensive investigation...
July 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28718063/new-insights-on-platelets-and-platelet-derived-microparticles-in-systemic-lupus-erythematosus
#20
REVIEW
Marc Scherlinger, Vanja Sisirak, Christophe Richez, Estibaliz Lazaro, Pierre Duffau, Patrick Blanco
PURPOSE OF REVIEW: Current knowledge on the role of platelets and platelet-derived microparticles (PMPs) on the immune system has been fast-growing. Systemic lupus erythematosus (SLE) is a systemic auto-immune disorder characterized by a loss of tolerance toward nuclear auto-antigens. Although recent studies allowed a better understanding of SLE pathogenesis, there is an urgent need for the development of new treatments and the identification of new biomarkers to assess the disease activity...
August 2017: Current Rheumatology Reports
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