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Lupus biomarker

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https://www.readbyqxmd.com/read/28219195/-expression-and-clinical-significance-of-semaphorin-3a-in-serum-and-mononuclear-cells-in-patients-with-systemic-lupus-erythematosus
#1
H Gao, X X Ma, Q Guo, Y D Zou, Y C Zhong, L F Xie, M Shao, X W Zhang
Objective: To determine the expression of Sema3A in serum and peripheral blood mononuclear cells (PBMC) of patients with systemic lupus erythematosus (SLE), to analysis the correlation of Sema3A expression and SLE clinical manifestations and laboratory indexes, and to evaluate the diagnostic value of Sema3A in patients with SLE. Methods: The concentration of serum Sema3A was detected by enzyme-linked immuno sorbent assay (ELISA) in patients with SLE, healthy controls (HC) and diseases controls. In addition, the mRNA expression level of Sema3A was examined in PBMC by real-time polymerase chain reaction...
February 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28215100/targeting-baff-and-april-in-systemic-lupus-erythematosus-and-other-antibody-associated-diseases
#2
Eileen Samy, Stephen Wax, Bertrand Huard, Henry Hess, Pascal Schneider
The B cell-stimulating molecules, BAFF (B cell activating factor) and APRIL (a proliferation-inducing ligand), are critical factors in the maintenance of the B cell pool and humoral immunity. In addition, BAFF and APRIL are involved in the pathogenesis of a number of human autoimmune diseases, with elevated levels of these cytokines detected in the sera of patients with systemic lupus erythematosus (SLE), IgA nephropathy, Sjögren's syndrome, and rheumatoid arthritis. As such, both molecules are rational targets for new therapies in B cell-driven autoimmune diseases, and several inhibitors of BAFF or BAFF and APRIL together have been investigated in clinical trials...
January 2, 2017: International Reviews of Immunology
https://www.readbyqxmd.com/read/28212922/organ-specific-biomarkers-in-lupus
#3
REVIEW
Haijing Wu, Jinrong Zeng, Ming Zhao, Qianjin Lu
Systemic lupus erythematosus (SLE) is a complex and highly heterogeneous disease, which affects multiple organs, including joints, skin, kidneys, heart, hematopoietic system, and nerve system. While the etiopathogenesis of SLE still remains unclear, genetic susceptibilities and aberrant epigenetic modifications are believed to be involved. For precision therapy, it is necessary to assess accurately and objectively organ involvements and disease activity, which is difficult by current clinical laboratory tests...
February 14, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28167944/intestinal-dysbiosis-is-associated-with-altered-short-chain-fatty-acids-and-serum-free-fatty-acids-in-systemic-lupus-erythematosus
#4
Javier Rodríguez-Carrio, Patricia López, Borja Sánchez, Sonia González, Miguel Gueimonde, Abelardo Margolles, Clara G de Los Reyes-Gavilán, Ana Suárez
Metabolic impairments are a frequent hallmark of systemic lupus erythematosus (SLE). Increased serum levels of free fatty acids (FFA) are commonly found in these patients, although the underlying causes remain elusive. Recently, it has been suggested that factors other than inflammation or clinical features may be involved. The gut microbiota is known to influence the host metabolism, the production of short-chain fatty acids (SCFA) playing a potential role. Taking into account that lupus patients exhibit an intestinal dysbiosis, we wondered whether altered FFA levels may be associated with the intestinal microbial composition in lupus patients...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28161558/neutrophil-perversion-in-demyelinating-autoimmune-diseases-mechanisms-to-medicine
#5
REVIEW
Courtney S Casserly, Julia C Nantes, Ryder F Whittaker Hawkins, Luc Vallières
Neutrophils are essential to a healthy life, yet pose a threat if improperly controlled. Neutrophil perversion is well documented in a variety of inflammatory disorders (e.g. arthritis, lupus, psoriasis), but is only beginning to be demystified in autoimmune demyelination, the most common cause of neurological disability in young adults. Using the animal model experimental autoimmune encephalomyelitis (EAE), several molecules that help neutrophils invade the central nervous system (CNS) have been identified...
February 2, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28147328/autoantibody-to-mdm2-a-potential-serological-marker-of-primary-sjogren-s-syndrome
#6
Yuan Liu, Xining Liao, Ying Wang, Shiju Chen, Yuechi Sun, Qingyan Lin, Guixiu Shi
INTRODUCTION: Primary Sjogren's Syndrome (pSS) is one of the autoimmune diseases characterized by polyclonal autoantibody production. The human homologue of the mouse double minute 2 (MDM2) is an important negative regulator of p53. Our previous study indicated that autoantibody to MDM2 can be detected in systemic lupus erythematosus patients. The purpose of this study is to study anti-MDM2 autoantibody in pSS patients. METHODS: Anti-MDM2 autoantibody in sera from 100 pSS patients and 74 normal controls was investigated by ELISA...
January 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28130494/oxidized-low-density-lipoprotein-immune-complex-priming-of-the-nlrp3-inflammasome-involves-tlr-and-fc%C3%AE-r-cooperation-and-is-dependent-on-card9
#7
Jillian P Rhoads, John R Lukens, Ashley J Wilhelm, Jared L Moore, Yanice Mendez-Fernandez, Thirumala-Devi Kanneganti, Amy S Major
Oxidized low-density lipoprotein (oxLDL) is known to activate inflammatory responses in a variety of cells, especially macrophages and dendritic cells. Interestingly, much of the oxLDL in circulation is complexed to Abs, and these resulting immune complexes (ICs) are a prominent feature of chronic inflammatory disease, such as atherosclerosis, type-2 diabetes, systemic lupus erythematosus, and rheumatoid arthritis. Levels of oxLDL ICs often correlate with disease severity, and studies demonstrated that oxLDL ICs elicit potent inflammatory responses in macrophages...
January 27, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28120479/urinary-haptoglobin-alpha-1-anti-chymotrypsin-and-retinol-binding-protein-identified-by-proteomics-as-potential-biomarkers-for-lupus-nephritis
#8
Amita Aggarwal, Ranjan Gupta, V S Negi, Liza Rajasekhar, Ramnath Misra, Padam Singh, Vinita Chaturvedi, Sudhir Sinha
OBJECTIVE: Identification by proteomics and validation by ELISA of potential urinary biomarkers for lupus nephritis. METHODS: Study subjects comprised 88 systemic lupus erythematosus (SLE) patients and 60 controls (rheumatoid arthritis, diabetes mellitus and healthy individuals). Based on SLE disease activity index (SLEDAI) patients were classified as active renal (AR), active non-renal (ANR) or inactive disease (ID).Urinary proteins from a group of patients with AR or ID were resolved by two-dimensional gel electrophoresis and identified by MALDI-TOF-MS/MS...
January 24, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28118537/pharmacodynamics-safety-and-clinical-efficacy-of-amg-811-a-human-anti-interferon-%C3%AE-antibody-in-subjects-with-discoid-lupus-erythematosus
#9
Victoria P Werth, David Fiorentino, Barbara A Sullivan, Michael J Boedigheimer, Kit Chiu, Christine Wang, Gregory E Arnold, Michael A Damore, Jeannette Bigler, Andrew A Welcher, Chris B Russell, David A Martin, James B Chung
OBJECTIVE: Interferon (IFN)-γ is implicated in the pathogenesis of discoid lupus erythematosus (DLE). This study evaluated a single dose of AMG 811, an anti-IFN-γ antibody, in subjects with DLE. METHODS: This was a phase 1, randomized, double-blind, placebo-controlled, crossover study (sequence 1: AMG 811 followed by placebo; sequence 2: placebo followed by AMG 811). Subjects received a single subcutaneous dose of AMG 811 (180 mg) or placebo. Pharmacodynamic endpoints included global transcriptional analyses of lesional and nonlesional skin, IFN-γ Blockade Signature (IGBS) transcriptional score in skin and blood, keratinocyte IFN-γ RNA score, and serum CXCL-10 protein...
January 24, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28102737/platelet-microvesicles-in-health-and-disease
#10
Imene Melki, Nicolas Tessandier, Anne Zufferey, Eric Boilard
Interest in cell-derived extracellular vesicles and their physiological and pathological implications is constantly growing. Microvesicles, also known as microparticles, are small extracellular vesicles released by cells in response to activation or apoptosis. Among the different microvesicles present in the blood of healthy individuals, platelet-derived microvesicles (PMVs) are the most abundant. Their characterization has revealed a heterogeneous cargo that includes a set of adhesion molecules. Similarly to platelets, PMVs are also involved in thrombosis through support of the coagulation cascade...
January 19, 2017: Platelets
https://www.readbyqxmd.com/read/28089970/spatial-working-memory-impairment-in-patients-with-non-neuropsychiatric-systemic-lupus-erythematosus-a-blood-oxygen-level-dependent-functional-magnetic-resonance-imaging-study
#11
Chun-Min Zhu, Ye Ma, Lei Xie, Jin-Zhuang Huang, Zong-Bo Sun, Shou-Xing Duan, Zhi-Rong Lin, Jing-Jing Yin, Hong-Bo Le, Dan-Miao Sun, Wen-Can Xu, Shu-Hua Ma
OBJECTIVE: Using ethology and functional magnetic resonance imaging (fMRI) to explore mild cognitive dysfunction and spatial working memory (WM) impairment in patients with systemic lupus erythematosus (SLE) without overt neuropsychiatric symptoms (non-NPSLE) and to study whether any clinical biomarkers could serve as predictors of brain dysfunction in this disease. METHODS: Eighteen non-NPSLE patients and 18 matched subjects were all tested using the Montreal cognitive assessment scale test and scanned using blood-oxygen-level dependent fMRI while performing the n-back task to investigate the activation intensity of some cognition-related areas...
January 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28053878/microparticle-subpopulations-are-potential-markers-of-disease-progression-and-vascular-dysfunction-across-a-spectrum-of-connective-tissue-disease
#12
E M McCarthy, D Moreno-Martinez, F L Wilkinson, N J McHugh, I N Bruce, J D Pauling, M Y Alexander, B Parker
OBJECTIVE: Microparticles (MPs) are membrane-bound vesicles derived from vascular and intravascular cells such as endothelial cells (EMPs) and platelets (PMPs). We investigated EMP and PMP numbers across a spectrum of autoimmune rheumatic diseases (AIRDs) with the aim of comparing the levels of, and relationship between, EMPs and PMPs. METHODS: Patients with Systemic Lupus Erythematosus (SLE) (n = 24), Systemic Sclerosis (SSc) (n = 24), Primary Raynauds Phenomenon (RP) (n = 17) and "other CTD" (n = 15) (Primary Sjogrens Syndrome, UCTD or MCTD) as well as 15 healthy controls were recruited...
June 2017: BBA Clinical
https://www.readbyqxmd.com/read/28053277/auto-antibodies-to-double-stranded-dna-as-biomarker-in-systemic-lupus-erythematosus-comparison-of-different-assays-during-quiescent-and-active-disease
#13
Karina de Leeuw, Laura Bungener, Caroline Roozendaal, Hendrika Bootsma, Coen A Stegeman
OBJECTIVE: Auto-antibodies directed to dsDNA (anti-dsDNA) are used in diagnosis and follow-up for SLE. However, multiple assays are used. The objective of this study was to determine the best-performing assays, especially in prediction of exacerbations. METHODS: Seven assays were compared during LN (n = 58). The two assays with the most frequent positive results during active nephritis were selected and tested in 152 SLE patients with quiescent disease, 40 with active disease and 214 disease controls...
January 3, 2017: Rheumatology
https://www.readbyqxmd.com/read/28036035/serum-interleukin-34-levels-are-elevated-in-patients-with-systemic-lupus-erythematosus
#14
Hongxu Wang, Ju Cao, Xiaofei Lai
Interleukin-34 (IL-34) was initially identified as an alternative ligand for the colony-stimulating factor-1 receptor (CSF-1R) to mediate the biology of mononuclear phagocytic cells. Recently, IL-34 was found to be associated with chronic inflammation, such as in rheumatoid arthritis (RA). Both RA and systemic lupus erythematosus (SLE) are multifactorial autoimmune diseases and are characterized by excessive immune and inflammatory responses. Thus, we investigated whether IL-34 is involved in the pathogenesis of SLE...
December 28, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28031441/modular-transcriptional-repertoire-analyses-identify-a-blood-neutrophil-signature-as-a-candidate-biomarker-for-lupus-nephritis
#15
Noémie Jourde-Chiche, Elizabeth Whalen, Bertrand Gondouin, Cate Speake, Vivian Gersuk, Bertrand Dussol, Stephane Burtey, Virginia Pascual, Damien Chaussabel, Laurent Chiche
OBJECTIVE: LN is a severe complication of SLE. Non-invasive biomarkers are needed for identifying patients at risk of a renal flare, for differentiating proliferative from non-proliferative forms and for assessing prognoses for LN. METHODS: We assessed the link between blood transcriptional signatures and LN using blood samples from patients with biopsy-proven LN, extra-renal SLE flares or quiescent SLE. Healthy controls, and control patients with glomerular diseases or bacterial sepsis were included...
December 27, 2016: Rheumatology
https://www.readbyqxmd.com/read/28013206/systemic-lupus-erythematosus-diagnosis-and-management
#16
REVIEW
Bernard Thong, Nancy J Olsen
SLE presents many challenges for clinicians. The onset of disease may be insidious, with many different symptoms and signs, making early and accurate diagnosis challenging. Tests for SLE in the early stages lack specificity; those that are useful later often appear only after organ damage is manifest. Disease patterns are highly variable; flares are not predictable and not always associated with biomarkers. Children with SLE may have severe disease and present special management issues. Older SLE patients have complicating co-morbid conditions...
December 24, 2016: Rheumatology
https://www.readbyqxmd.com/read/28013203/systemic-lupus-erythematosus-biomarkers-the-challenging-quest
#17
Cristina Arriens, Jonathan D Wren, Melissa E Munroe, Chandra Mohan
SLE, a multisystem heterogeneous disease, is characterized by production of antibodies to cellular components, with activation of both the innate and the adaptive immune system. Decades of investigation of blood biomarkers has resulted in incremental improvements in the understanding of SLE. Owing to the heterogeneity of immune dysregulation, no single biomarker has emerged as a surrogate for disease activity or prediction of disease. Beyond identification of surrogate biomarkers, a multitude of clinical trials have sought to inhibit elevated SLE biomarkers for therapeutic benefit...
December 24, 2016: Rheumatology
https://www.readbyqxmd.com/read/27973968/serum-soluble-tumour-necrosis-factor-receptor-2-stnfr2-as-a-biomarker-of-kidney-tissue-damage-and-long-term-renal-outcome-in-lupus-nephritis
#18
I Parodis, H Ding, A Zickert, L Arnaud, A Larsson, E Svenungsson, C Mohan, I Gunnarsson
OBJECTIVES: We investigated the performance of soluble tumour necrosis factor receptor-2 (sTNFR2) as a biomarker of renal activity, damage, treatment response, and long-term outcome in lupus nephritis (LN). METHOD: Serum sTNFR2 levels were assessed in 64 LN patients (52 proliferative, 12 membranous) before and after induction treatment, and in 314 non-lupus controls. In LN patients, renal biopsies were performed at baseline and post-treatment. Patients with ≥ 50% reduced proteinuria, normal or improved estimated glomerular filtration rate (eGFR) by ≥ 25%, and inactive urinary sediment were considered clinical responders (CRs)...
December 15, 2016: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/27943079/assessment-of-type-i-interferon-signaling-in-pediatric-inflammatory-disease
#19
Gillian I Rice, Isabelle Melki, Marie-Louise Frémond, Tracy A Briggs, Mathieu P Rodero, Naoki Kitabayashi, Anthony Oojageer, Brigitte Bader-Meunier, Alexandre Belot, Christine Bodemer, Pierre Quartier, Yanick J Crow
PURPOSE: Increased type I interferon is considered relevant to the pathology of a number of monogenic and complex disorders spanning pediatric rheumatology, neurology, and dermatology. However, no test exists in routine clinical practice to identify enhanced interferon signaling, thus limiting the ability to diagnose and monitor treatment of these diseases. Here, we set out to investigate the use of an assay measuring the expression of a panel of interferon-stimulated genes (ISGs) in children affected by a range of inflammatory diseases...
December 9, 2016: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/27936517/-novel-biomarkers-for-the-assessment-of-pediatric-systemic-lupus-erythematosus-nephritis
#20
Artemis Koutsonikoli, Maria Trachana, Evangelia Farmaki, Vasiliki Tzimouli, Polyxeni Pratsidou-Gertsi, Nikoleta Printza, Alexandros Garyphallos, Vasiliki Galanopoulou, Florence Kanakoudi-Tsakalidou, Fotios Papachristou
OBJECTIVES: The discovery of serum biomarkers specific for pediatric Lupus Nephritis (pLN) will facilitate the non-invasive diagnosis, follow-up and more appropriate use of treatment. The aim of this study was to explore the role of serum High-Mobility-Group-Box-1 (HMGB1) protein, antibodies against nucleosomes (anti-NCS), complement factor C1q (anti-C1q) and glomerular basement membrane (anti-GBM) in pLN. METHODS: Serum samples of 42 patients with pediatric Systemic Lupus Erythematosus (pSLE) (22 with pLN and 20 without renal involvement), fifteen patients with other autoimmune nephritis (AN) and 26 healthy controls (HCs) were examined using ELISA...
December 9, 2016: Clinical and Experimental Immunology
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