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Lupus biomarker

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https://www.readbyqxmd.com/read/29775619/proteomic-approach-to-profiling-immune-complex-antigens-in-cerebrospinal-fluid-samples-from-patients-with-central-nervous-system-autoimmune-diseases
#1
Nozomi Aibara, Kunihiro Ichinose, Miyako Baba, Hideki Nakajima, Katsuya Satoh, Ryuichiro Atarashi, Naoya Kishikawa, Noriyuki Nishida, Atsushi Kawakami, Naotaka Kuroda, Kaname Ohyama
BACKGROUND: Immune complexes (ICs) may clearly reflect immunological abnormalities caused by disease, especially for autoimmune diseases. Although ICs have been detected in cerebrospinal fluid (CSF) from patients with CNS autoimmune diseases, identities of antigens in such ICs have not been comprehensively determined. METHODS: We used immune complexome analysis, in which nano-liquid chromatography-tandem mass spectrometry is employed to comprehensively identify antigens incorporated into ICs in biological fluids, to characterize ICs in CSF samples from patients with CNS autoimmune diseases, and to find disease-specific IC antigen to a certain CNS autoimmune disease...
May 15, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29773465/pulmonary-manifestations-in-systemic-lupus-erythematosus-pleural-involvement-acute-pneumonitis-chronic-interstitial-lung-disease-and-diffuse-alveolar-hemorrhage
#2
Georgina Aguilera-Pickens, Carlos Abud-Mendoza
Systemic lupus erythematosus is the diffuse autoimmune connective tissue disease that most frequently involves pulmonary involvement, affecting 20% of 90% of the patients. The percentage varies depending on the defining criteria (symptoms, pulmonary tests or histopathological studies). At least once during the disease course, 50% of those affected have pleural and/or pulmonary manifestations, which are associated with higher morbidity and mortality. Pulmonary involvement has no correlation with lupus activity biomarkers, and it is necessary to rule out infectious processes in the initial approach...
May 14, 2018: Reumatología Clinica
https://www.readbyqxmd.com/read/29765992/serological-immunoglobulin-free-light-chain-profile-in-myasthenia-gravis-patients
#3
Umberto Basile, Mariapaola Marino, Cecilia Napodano, Krizia Pocino, Paolo Emilio Alboini, Francesca Gulli, Amelia Evoli, Carlo Provenzano, Emanuela Bartoccioni
Background: Serological levels of free immunoglobulin light chains (FLCs), produced in excess of heavy chains during synthesis of immunoglobulins by plasma cells, can be considered a direct marker of B cell activity in different systemic inflammatory-autoimmune conditions and may represent a useful predictor of rituximab (RTX) therapeutic efficacy, as reported for rheumatoid arthritis and systemic lupus erythematosus. Myasthenia gravis (MG) is an autoimmune disease of the neuromuscular junction with antibodies (abs) targeting the acetylcholine receptor (AChR) or the muscle-specific tyrosine kinase (MuSK), inducing muscle weakness and excessive fatigability...
2018: Journal of Immunology Research
https://www.readbyqxmd.com/read/29747124/serum-human-epididymis-protein-4-is-a-predictor-for-developing-nephritis-in-patients-with-systemic-lupus-erythematosus-a-prospective-cohort-study
#4
Yingpeng Ren, Jing Xie, Feng Lin, Wanwan Luo, Zhencheng Zhang, Panying Mao, Renqian Zhong, Yan Liang, Zaixing Yang
BACKGROUND: It has been demonstrated that serum human epididymis protein 4 (HE4) is a useful biomarker for differentiating lupus nephritis (LN) from systemic lupus erythematosus (SLE). However, it remains unclear whether HE4 can be used to predict the development of LN. METHODS: A total of 74 SLE patients without LN were recruited between August 2008 and September 2013. Serum HE4 concentrations were measured by enzyme-linked immunosorbent assay. These patients were followed up from the date of SLE diagnosis to LN development or the end of the study...
May 7, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29742110/identification-of-a-neutrophil-related-gene-expression-signature-that-is-enriched-in-adult-systemic-lupus-erythematosus-patients-with-active-nephritis-clinical-pathologic-associations-and-etiologic-mechanisms
#5
Joan E Wither, Stephenie D Prokopec, Babak Noamani, Nan-Hua Chang, Dennisse Bonilla, Zahi Touma, Carmen Avila-Casado, Heather N Reich, James Scholey, Paul R Fortin, Paul C Boutros, Carolina Landolt-Marticorena
Both a lack of biomarkers and relatively ineffective treatments constitute impediments to management of lupus nephritis (LN). Here we used gene expression microarrays to contrast the transcriptomic profiles of active SLE patients with and without LN to identify potential biomarkers for this condition. RNA isolated from whole peripheral blood of active SLE patients was used for transcriptomic profiling and the data analyzed by linear modeling, with corrections for multiple testing. Results were validated in a second cohort of SLE patients, using NanoString technology...
2018: PloS One
https://www.readbyqxmd.com/read/29740453/deoxyribonucleic-acid-methylation-in-systemic-lupus-erythematosus-implications-for-future-clinical-practice
#6
REVIEW
Emma Weeding, Amr H Sawalha
Differential deoxyribonucleic acid (DNA) methylation has emerged as a critical feature of systemic lupus erythematosus (SLE). Genome-wide DNA methylation studies have revealed methylation patterns characteristic of SLE-in particular, robust hypomethylation of interferon-regulated genes is a prominent finding in all cells of the immune system studied to date. These patterns reliably distinguish individuals with SLE from healthy controls and from individuals with other autoimmune diseases. For example, hypomethylation within IFI44L is both highly sensitive and highly specific for SLE, superior to currently available biomarkers...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29720035/clinical-application-of-protein-biomarkers-in-lupus-erythematosus-and-lupus-nephritis
#7
S Qi, Q Chen, D Xu, N Xie, Y Dai
Systemic lupus erythematosus (SLE) is a type of autoimmune disease that damages multiple organs, including the heart, joints, liver and kidneys. The main characteristics of SLE are the deposition of circulating autoantibodies; autoantigen complexes in the renal system; and abnormal expression of complements, cytokines and chemokines. Lupus nephritis (LN) is the most serious manifestation of SLE and is characterized by inflammation of the kidney. This review summarizes recent clinical applications of protein biomarkers including autoantibodies, complements, cytokines and chemokines and some new protein biomarkers in SLE and LN...
January 1, 2018: Lupus
https://www.readbyqxmd.com/read/29718222/genetic-variation-affects-c-reactive-protein-elevations-in-crohn-s-disease
#8
Christopher J Moran, Jess L Kaplan, Harland S Winter
Background: C-reactive protein (CRP) is a serum marker that is used to measure disease activity in Crohn's disease (CD). However, a subset of CD patients have normal CRP during flares. In rheumatoid arthritis and lupus, genetic variants can restrict CRP elevations during flares. This study sought to determine if common CRP genetic variants affect CRP values during active CD. Methods: Subjects with CD who participated in the Partners HealthCare BioBank were genotyped for 5 common CRP genetic variants (rs2794520, rs3122012, rs3093077, rs2808635, and rs1800947)...
April 28, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29701842/the-emerging-immunogenetic-architecture-of-schizophrenia
#9
Jennie G Pouget
Schizophrenia is a severe psychiatric disorder of complex etiology. Immune processes have long been proposed to contribute to the development of schizophrenia, and accumulating evidence supports immune involvement in at least a subset of cases. In recent years, large-scale genetic studies have provided new insights into the role of the immune system in this disease. Here, we provide an overview of the immunogenetic architecture of schizophrenia based on findings from genome-wide association studies (GWAS). First, we review individual immune loci identified in secondary analyses of GWAS, which implicate over 30 genes expressed in both immune and brain cells...
April 26, 2018: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/29684636/increased-frequency-of-ccr7-cd4-t-cells-from-patients-with-primary-sj%C3%A3-gren-s-syndrome-an-indicator-of-disease-activity-rather-than-of-damage-severity
#10
Chunling Wu, Pingting Yang, Haina Liu, Weiguo Xiao, Lijuan Zhao
Expression of CCR7 on T cells has been reported to be associated with the lymphocytic migration and infiltration, which is recognized as a vital part of the pathogenesis of Primary Sjögren's syndrome (pSS). Here, we compared the expression of CCR7 on CD4+T cells between pSS patients and control groups, including healthy donors (HD) and patients with systemic lupus erythematosus (SLE) and examined correlations with disease activity and damage severity, which were evaluated by EULAR Sjögren's Syndrome Disease Activity Index (ESSDAI) and Sjogren's Syndrome Disease Damage Index (SSDDI), respectively...
April 20, 2018: Cytokine
https://www.readbyqxmd.com/read/29682100/urinary-clusterin-is-upregulated-in-nephropathia-epidemica
#11
Ekaterina V Martynova, Adelya N Maksudova, Venera G Shakirova, Sayar R Abdulkhakov, Ilsiyar M Khaertynova, Vladimir A Anokhin, Vilena V Ivanova, Ilesanmi M Abiola, Ekaterina E Garanina, Leisan G Tazetdinova, Aigul H Valiullina, Svetlana F Khaiboullina
Kidney insufficiency is a hallmark of nephropathia epidemica (NE). Little is known about the mechanisms of the NE kidney pathology, with current knowledge mainly based on findings in postmortem tissue. We have analyzed kidney damage biomarkers in urine collected from early- and late-phase NE using Bio-Plex kidney toxicity panels 1 and 2. To determine the disease specificity, kidney damage biomarkers were also analyzed in urine samples from patients diagnosed with gout, type 2 diabetes, systemic lupus erythematosus, and chronic kidney insufficiency...
2018: Disease Markers
https://www.readbyqxmd.com/read/29680223/dysregulation-of-micrornas-in-autoimmune-diseases-pathogenesis-biomarkers-and-potential-therapeutic-targets
#12
Hai Long, Xin Wang, Yongjian Chen, Ling Wang, Ming Zhao, Qianjin Lu
MicroRNAs (miRNAs) are small, single-stranded, endogenous non-coding RNAs that repress the expression of target genes via post-transcriptional mechanisms. Due to their broad regulatory effects, the precisely regulated, spatial-specific and temporal-specific expression of miRNAs is fundamentally important to various biological processes including the immune homeostasis and normal function of both innate and adaptive immune response. Aberrance of miRNAs is implicated in the development of various human diseases, especially cancers...
April 19, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29672805/musculoskeletal-manifestations-of-non-ra-connective-tissue-diseases-scleroderma-systemic-lupus-erythematosus-still-s-disease-dermatomyositis-polymyositis-sj%C3%A3-gren-s-syndrome-and-mixed-connective-tissue-disease
#13
Thibaut Jacques, Iwona Sudoł-Szopińska, Neal Larkman, Phil O'Connor, Anne Cotten
The most common systemic rheumatologic conditions are connective tissue diseases (including rheumatoid arthritis [RA]) followed by spondyloarthropathy. With the advent of biotherapies and imaging biomarkers, development in the imaging of RA and spondyloarthropathies has received substantial attention in the literature. This article details the various musculoskeletal imaging features of the other connective tissue diseases such as scleroderma and progressive systemic sclerosis, systemic lupus erythematosus, Still's disease, dermatomyositis and polymyositis, Sjögren's syndrome, and mixed connective tissue disease...
April 2018: Seminars in Musculoskeletal Radiology
https://www.readbyqxmd.com/read/29668584/combined-utilization-of-untimed-single-urine-of-mcp-1-and-tweak-as-a-potential-indicator-for-proteinuria-in-lupus-nephritis-a-case-control-study
#14
Xiwen Dong, Zhaohui Zheng, Xing Luo, Jin Ding, Ying Li, Zhiqin Li, Sijia Li, Mengyao Rong, Yalu Fu, Zhenbiao Wu, Ping Zhu
The aim of this study was to determine whether combined utilization of untimed single urine monocyte chemoattractant protein 1 (uMCP-1) and tumor necrosis factor (TNF)-like weak inducer of apoptosis (uTWEAK) could serve as a screening test for proteinuria in patients with lupus nephritis (LN).A case-control study that contained 39 biopsy-proven LN patients, 20 non-LN systemic lupus erythematosus (SLE) patients, and 10 healthy controls (HCs) were carried out. Correlations between uMCP-1, uTWEAK, and traditional clinical markers were analyzed by Spearman correlation test...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29657143/clinical-and-serological-associations-with-the-development-of-incident-proteinuria-in-danish-patients-with-systemic-lupus-erythematosus
#15
Nima Tanha, Renata Baronaite Hansen, Christoffer Tandrup Nielsen, Mikkel Faurschou, Søren Jacobsen
OBJECTIVE: In a longitudinal cohort study, we investigated whether clinical and serological manifestations at the time of classification of systemic lupus erythematosus (SLE) were predictive of subsequent development of incident proteinuria as a biomarker of incident lupus nephritis. METHODS: Patients fulfilling SLE classification criteria but having no proteinuria prior to or at the time of classification were included. Data on SLE manifestations, vital status, criteria-related autoantibodies, and SLE-associated medications were collected during clinical visits and supplemented by chart review...
April 15, 2018: Journal of Rheumatology
https://www.readbyqxmd.com/read/29655919/endocannabinoid-system-in-systemic-lupus-erythematosus-first-evidence-for-a-deranged-2-arachidonoylglycerol-metabolism
#16
Luca Navarini, Tiziana Bisogno, Pamela Mozetic, Fabiana Piscitelli, Domenico Paolo Emanuele Margiotta, Fabio Basta, Antonella Afeltra, Mauro Maccarrone
The endocannabinoid (eCB) system plays a key role in many physiological and pathological conditions and its dysregulation has been described in several rheumatological and autoimmune diseases. Yet, its possible alteration in systemic lupus erythematosus (SLE) has never been investigated. Here, we aimed filling this gap in plasma and peripheral blood mononuclear cells (PBMCs) of patients with SLE and age- and sex- matched healthy subjects (HS). Liquid chromatography-mass spectrometry quantitation of eCB levels highlighted that plasma levels of 2-arachidonoylglycerol (2-AG) were significantly increased in SLE patients compared to HS (p = 0...
April 12, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29655487/frequency-of-aquaporin-4-immunoglobulin-g-in-longitudinally-extensive-transverse-myelitis-with-antiphospholipid-antibodies
#17
Hilda Guerra, Sean J Pittock, Kevin G Moder, James P Fryer, Avi Gadoth, Eoin P Flanagan
Antiphospholipid (aPL) antibodies have historically been postulated to cause a poorly understood inflammatory myelitis. Neuromyelitis optica spectrum disorder (NMOSD) causes an inflammatory longitudinally extensive transverse myelitis (LETM). In 2004, aquaporin-4 immunoglobulin G (AQP4-IgG) was first reported as a highly specific (>99%) serum diagnostic biomarker of NMOSD, distinguishing it from other disorders (eg, multiple sclerosis). We sought to assess the frequency of AQP4-IgG (and thus NMOSD diagnosis) in LETM with aPL antibodies...
April 11, 2018: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/29624903/lupus-nephritis-low-urinary-dnase-i-levels-reflect-loss-of-renal-dnase-i-and-may-be-utilized-as-a-biomarker-of-disease-progression
#18
Hege L Pedersen, Kjersti D Horvei, Dhivya Thiyagarajan, Gudrun E Norby, Natalya Seredkina, Gabriella Moroni, Gro Ø Eilertsen, Hallvard Holdaas, Erik H Strøm, Gunnstein Bakland, Pier-Luigi Meroni, Ole P Rekvig
Renal DNase I is lost in advanced stages of lupus nephritis. Here, we determined if loss of renal DNase I reflects a concurrent loss of urinary DNase I, and whether absence of urinary DNase I predicts disease progression. Mouse and human DNase I protein and DNase I endonuclease activity levels were determined by western blot, gel, and radial activity assays at different stages of the murine and human forms of the disease. Cellular localization of DNase I was analyzed by immunohistochemistry, immunofluorescence, confocal microscopy, and immunoelectron microscopy...
February 21, 2018: Journal of Pathology. Clinical Research
https://www.readbyqxmd.com/read/29623845/is-treat-to-target-in-lupus-nephritis-realistic-in-clinical-practice
#19
Chi Chiu Mok
The treat-to-target (T2T) principle has been advocated in a number of inflammatory and non-inflammatory medical illnesses. Tight control of disease activity has been shown to improve the outcome of rheumatoid arthritis and psoriatic arthritis as compared to the conventional approach. However, whether T2T can be applied to patients with lupus nephritis is still under hot discussion. Treatment of lupus nephritis should target at inducing and maintaining remission of the kidney inflammation so as to preserve renal function and improve survival in the long-term...
April 5, 2018: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/29621567/salivary-biomarkers-of-inflammation-in-systemic-lupus-erythematosus
#20
Iulia-Ioana Stanescu, Bogdan Calenic, Alina Dima, Livia Alexandra Gugoasa, Eugenia Balanescu, Raluca-Ioana Stefan van Staden, Cristian Baicus, Daniela Gabriela Badita, Maria Greabu
Saliva is currently used as a reliable diagnostic fluid in a wide range of local and systemic diseases. However, the link between salivary diagnosis and the inflammatory process in autoimmune diseases has not yet been explored. The aim of our study is to assess possible correlations between salivary inflammatory markers and systemic lupus erythematosus (SLE). Patients fulfilling the Systemic Lupus International Collaborating Clinics (SLICC) diagnosis criteria were included. Salivary and serum levels of interleukin-6 (IL-6), leptin, monocyte chemoattractant protein-1 (MCP-1) and plasminogen activator inhibitor-1 (PAI-1) were determined using stochastic sensors...
April 2, 2018: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
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