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https://www.readbyqxmd.com/read/29458096/identification-of-macrophage-related-candidate-genes-in-lupus-nephritis-using-bioinformatics-analysis
#1
Bingyan Shu, Yi Fang, Weichun He, Junwei Yang, Chunsun Dai
Lupus nephritis (LN) is a chronic autoimmune disorder. Here we try to identify the candidate genes in macrophages related to LN. We performed a systematic search in the Gene Expression Omnibus (GEO) database for microarray in human mononuclear cells and mouse macrophages of LN. The results of clustering and venn analysis of different GEO datasets showed that 8 genes were up-regulated and 2 genes down-regulated in samples from both human and mouse LN. The data from gene network and GO analysis revealed that CD38 and CCL2 were localized in the core of the network...
February 16, 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29457995/validation-of-a-brazilian-portuguese-version-of-the-transition-readiness-assessment-questionnaire-traq-in-a-population-of-transitional-youth-with-chronic-rheumatologic-disorders
#2
Catherine G Anelli, Claudio A Len, Maria T Terreri, Gleice C S Russo, Andreas O Reiff
OBJECTIVE: To translate and validate the Brazilian Portuguese version of the Transition Readiness Assessment Questionnaire in a population of adolescents and young adults with chronic rheumatologic disorders. This questionnaire evaluates the patient's readiness for making the transition from the pediatric health service to adult care. METHODS: The four-phase methodology for the translation and validation of generic questionnaires was followed, including translation, back-translation, pilot testing and clinical validation of the final tool...
February 16, 2018: Jornal de Pediatria
https://www.readbyqxmd.com/read/29457982/discovery-of-gdc-0853-a-potent-selective-and-non-covalent-bruton-s-tyrosine-kinase-inhibitor-in-early-clinical-development
#3
James J Crawford, Adam R Johnson, Dinah L Misner, Lisa D Belmont, Georgette M Castanedo, Regina Choy, Melis Coraggio, Liming Dong, Charles Eigenbrot, Rebecca Erickson, Nico Ghilardi, Jonathan Hau, Arna Katewa, Pawan Bir Kohli, Wendy Lee, Joseph W Lubach, Brent S McKenzie, Daniel Fred Ortwine, Leah Schutt, Suzanne Tay, Binqing Wei, Karin Reif, Lichuan Liu, Harvey Wong, Wendy B Young
Btk is a non-receptor cytoplasmic tyrosine kinase involved in B-cell and myeloid cell activation, downstream of B-cell and Fcγ receptors, respectively. Pre-clinical studies have indicated that inhibition of Btk activity might offer a potential therapy in autoimmune diseases such as rheumatoid arthritis and systemic lupus erythematosus. Here we disclose the discovery and pre-clinical characterization of a potent, selective, and non-covalent Btk inhibitor currently in clinical development. GDC-0853 (29) suppresses B cell- and myeloid cell-mediated components of disease, and demonstrates dose-dependent activity in an in vivo rat model of inflammatory arthritis...
February 19, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29457372/clinical-characteristics-and-factors-associated-with-disability-and-impaired-quality-of-life-in-children-with-juvenile-systemic-sclerosis
#4
Brandi E Stevens, Kathryn S Torok, Suzanne C Li, Nicole Hershey, Megan Curran, Gloria C Higgins, Katharine F Moore, C Egla Rabinovich, Samuel Dodson, Anne M Stevens
OBJECTIVE: To investigate clinical manifestations of juvenile systemic sclerosis (jSSc), including disease characteristics and patient quality of life, through the multinational Childhood Arthritis and Rheumatology Research Alliance (CARRA) Legacy Registry. METHODS: Subjects with jSSc were prospectively enrolled between 2010 and 2013. Diagnosis of jSSc was determined by the enrolling pediatric rheumatologist, with disease onset required prior to age 18. Collected data included demographics, disease characteristics, medication exposure, and quality of life metrics...
February 18, 2018: Arthritis Care & Research
https://www.readbyqxmd.com/read/29456665/involvement-of-tweak-and-the-nf-%C3%AE%C2%BAb-signaling-pathway-in-lupus-nephritis
#5
Fang Sun, Jian Teng, Pengfei Yu, Wenshuang Li, Jing Chang, Honglei Xu
Previous findings have identified that tumor necrosis factor-related weak inducer of apoptosis (TWEAK) is associated with lupus nephritis (LN) activity status; however, the mechanism involved remains unclear. The present study aimed to investigate the roles of TWEAK and the nuclear factor (NF)-κB signaling pathway in LN. TWEAK levels in the blood and urine of patients with LN or non-LN systemic lupus erythematosus were measured by ELISA and compared with those in healthy controls. TWEAK expression and NF-κB transcriptional activity in the kidney were detected by western blotting, and Ki-67 and cluster of differentiation (CD) 68 expression were assessed using immunofluorescence...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456655/effect-of-immune-tolerance-induced-by-immature-dendritic-cells-and-ctla4-ig-on-systemic-lupus-erythematosus-an-in-vivo-study
#6
Cuili Huang, Lidan Zhang, Fang Ling, Sijian Wen, Yanyan Luo, Hui Liu, Jingping Liu, Wenjun Zheng, Ming Liang, Jian Sun, You-Kun Lin
Systemic lupus erythematosus (SLE) is a multi-organ autoimmune disease in which tissue damage is caused by autoantibodies. The induction of specific immune tolerance, including the utilization of immune regulatory cells, may enhance the therapeutic effects of organ transplantation in patients with SLE. Furthermore, inhibiting immune responses has been reported to be an effective treatment for SLE. However, few studies have explored the association between an increased immune tolerance and a decreased immune response in SLE treatment...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456648/immunosuppressive-effects-of-hydroxychloroquine-and-artemisinin-combination-therapy-via-the-nuclear-factor-%C3%AE%C2%BAb-signaling-pathway-in-lupus-nephritis-mice
#7
Ning Liang, Yanchun Zhong, Jie Zhou, Bihao Liu, Ruirui Lu, Yezhi Guan, Qi Wang, Chunlin Liang, Yu He, Yuan Zhou, Jianping Song, Jiuyao Zhou
Lupus nephritis (LN) is one of the most common and severe manifestations of systemic lupus erythematosus, leading to permanent renal damage and chronic kidney disease. Hydroxychloroquine (HCQ) serves a protective role against lupus-associated clinical manifestations and medical complications; however, it results in numerous adverse reactions, limiting its long-term use. The aim of the present study was to investigate the combined effect of HCQ and artemisinin (ART) on LN, and to elucidate the underlying mechanisms...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456540/kallikrein-kinin-system-suppresses-type-i-interferon-responses-a-novel-pathway-of-interferon-regulation
#8
Alecia Seliga, Michael Hweemoon Lee, Nicole C Fernandes, Viviana Zuluaga-Ramirez, Marta Didukh, Yuri Persidsky, Raghava Potula, Stefania Gallucci, Uma Sriram
The Kallikrein-Kinin System (KKS), comprised of kallikreins (klks), bradykinins (BKs) angiotensin-converting enzyme (ACE), and many other molecules, regulates a number of physiological processes, including inflammation, coagulation, angiogenesis, and control of blood pressure. In this report, we show that KKS regulates Type I IFN responses, thought to be important in lupus pathogenesis. We used CpG (TLR9 ligand), R848 (TLR7 ligand), or recombinant IFN-α to induce interferon-stimulated genes (ISGs) and proteins, and observed that this response was markedly diminished by BKs, klk1 (tissue kallikrein), or captopril (an ACE inhibitor)...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29456535/liver-x-receptor-agonist-therapy-prevents-diffuse-alveolar-hemorrhage-in-murine-lupus-by-repolarizing-macrophages
#9
Shuhong Han, Haoyang Zhuang, Stepan Shumyak, Jingfan Wu, Chao Xie, Hui Li, Li-Jun Yang, Westley H Reeves
The generation of CD138+ phagocytic macrophages with an alternative (M2) phenotype that clear apoptotic cells from tissues is defective in lupus. Liver X receptor-alpha (LXRα) is an oxysterol-regulated transcription factor that promotes reverse cholesterol transport and alternative (M2) macrophage activation. Conversely, hypoxia-inducible factor 1-α (HIF1α) promotes classical (M1) macrophage activation. The objective of this study was to see if lupus can be treated by enhancing the generation of M2-like macrophages using LXR agonists...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29456284/spatially-explicit-model-for-assessing-wild-dog-control-strategies-in-western-australia
#10
Carlo Pacioni, Malcolm S Kennedy, Oliver Berry, Danielle Stephens, Nathan H Schumaker
Large predators can significantly impact livestock industries. In Australia, wild dogs ( Canis lupus familiaris , Canis lupus dingo, and hybrids) cause economic losses of more than AUD$40M annually. Landscape-scale exclusion fencing coupled with lethal techniques is a widely practiced control method. In Western Australia, the State Barrier Fence encompasses approximately 260,000km2 of predominantly agricultural land, but its effectiveness in preventing wild dogs from entering the agricultural region is difficult to evaluate...
January 24, 2018: Ecological Modelling
https://www.readbyqxmd.com/read/29454670/ultrasonography-and-detection-of-subclinical-joints-and-tendons-involvements-in-systemic-lupus-erythematosus-sle-patients-a-cross-sectional-multicenter-study
#11
Carine Salliot, Amélie Denis, Emmanuelle Dernis, Vincent Andre, Aleth Perdriger, Jean-David Albert, Saloua Mammou Mraghni, Isabelle Griffoul-Espitalier, Mohamed Hamidou, Benoit Le Goff, Sandrine Jousse Joulin, Thierry Marhadour, Christophe Richez, Nicolas Poursac, Estebaliz Lazaro, Stéphanie Rist, Anca Corondan, Clara Quinten, Virginie Martaillé, Antoine Valéry, Emilie Ducourau
OBJECTIVES: The aims of this study in SLE population were 1) to describe ultrasonography (US) joint abnormalities, 2) to estimate the reliability of clinical swollen joint count (C-SJC) and SLEDAI (C-SLEDAI) versus US-SJC and US-SLEDAI scores, 3) to highlight specific patterns of lupus patients with Power Doppler (PD) abnormalities. METHOD: For this cross-sectional multicenter study, 151 consecutive adult SLE patients were recruited. Evaluation included a clinical standardized joint assessment, B-mode and PD US of 40 joints and 26 tendons blinded for clinical examination...
February 15, 2018: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/29453041/microrna-signature-of-regulatory-t-cells-in-health-and-autoimmunity
#12
REVIEW
Mehdi Soltanzadeh-Yamchi, Mehdi Shahbazi, Saeed Aslani, Mousa Mohammadnia-Afrouzi
MicroRNAs (miRNAs) are small RNA molecules with regulatory functions on the expression of genes through binding directly to target messenger RNA (mRNA) transcripts, eventuating in gene expression suppression via translational hindrance and/or target mRNA cleavage. These molecules have been established to participate in numerous critical cellular settings, including differentiation, development, and function of immune cells. As an important suppressor cell of immune system, regulatory T cells (Tregs) are important in modulating the immune homeostasis as well as tolerance to self-antigens...
February 13, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29452403/mechanisms-controlling-nucleic-acid-sensing-toll-like-receptors
#13
Kensuke Miyake, Takuma Shibata, Umeharu Ohto, Toshiyuki Shimizu, Shin-Ichiroh Saitoh, Ryutaro Fukui, Yusuke Murakami
Nucleic acid (NA)-sensing Toll-like receptors (TLRs) respond to DNA/RNA derived from pathogens and dead cells. Structural studies have revealed a variety of molecular mechanisms by which TLRs sense NAs. Double-stranded RNA and single-stranded DNA directly bind to TLR3 and TLR9, respectively, whereas TLR7 and 8 bind to nucleosides and oligoribonucleotides derived from RNAs. Activation of ligand-bound TLRs is influenced by the functional status of TLRs. Proteolytic cleavage of NA-sensing TLRs enables ligand-dependent TLR dimerization...
February 14, 2018: International Immunology
https://www.readbyqxmd.com/read/29451664/update-on-antiphospholipid-antibody-syndrome
#14
Michelle Remião Ugolini Lopes, Adriana Danowski, Andreas Funke, Jozelia Rêgo, Roger Levy, Danieli Castro Oliveira de Andrade
Antiphospholipid syndrome (APS) is an autoimmune disease characterized by antiphospholipid antibodies (aPL) associated with thrombosis and/or pregnancy morbidity. Most APS events are directly related to thrombotic events, which may affect small, medium or large vessels. Other clinical features like thrombocytopenia, nephropathy, cardiac valve disease, cognitive dysfunction and skin ulcers (called non-criteria manifestations) add significant morbidity to this syndrome and represent clinical situations that are challenging...
November 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/29451069/arthritis-and-use-of-hydroxychloroquine-associated-with-a-decreased-risk-of-macrophage-activation-syndrome-among-adult-patients-hospitalized-with-systemic-lupus-erythematosus
#15
E M Cohen, K D'Silva, D Kreps, M B Son, K H Costenbader
Background Macrophage activation syndrome (MAS) is an uncommon but serious complication of systemic lupus erythematosus (SLE). We aimed to identify factors associated with MAS among adult hospitalized SLE patients. Methods Within the Brigham and Women's Hospital (BWH) Lupus Center Registry, we identified adult SLE patients > age 17 who had been hospitalized from 1970 to 2016, with either ferritin > 5000 ng/ml during admission or "macrophage activation syndrome" or "MAS" in discharge summary...
January 1, 2018: Lupus
https://www.readbyqxmd.com/read/29451068/increased-visceral-adipose-tissue-and-altered-adiposity-distribution-in-premenopausal-lupus-patients-correlation-with-cardiovascular-risk-factors
#16
L P C Seguro, J A Paupitz, V F Caparbo, E Bonfa, R M R Pereira
Objective Visceral adipose tissue (VAT) correlates with cardiovascular risk factors and has never been assessed in systemic lupus erythematosus (SLE). Our aim was to evaluate VAT in premenopausal SLE patients. Methods Sixty-three premenopausal SLE patients and 186 age-matched healthy women were included. Demographic, anthropometric, disease and treatment parameters were evaluated. VAT was measured by dual X-ray absorptiometry (DXA) with APEX 4.0 software. Results SLE patients had a disease duration of 5.25 ± 3...
January 1, 2018: Lupus
https://www.readbyqxmd.com/read/29451067/combined-detection-of-umcp-1-and-utweak-for-rapid-discrimination-of-severe-lupus-nephritis
#17
X W Dong, Z H Zheng, J Ding, X Luo, Z Q Li, Y Li, M Y Rong, Y L Fu, J H Shi, L C Yu, Z B Wu, P Zhu
Reliable markers for the rapid discrimination of severe renal damage remain a vital concern for lupus nephritis (LN). To determine a better tool for kidney damage detection, the present study compared the evaluation ability of novel urinary cytokines and chemokines (namely urinary monocyte chemoattractant protein 1 (uMCP-1), tumor necrosis factor-like weak inducer of apoptosis (uTWEAK)) with traditional serum or urinary markers (namely urinary alpha 1-microgrobulin (uα1-MG), beta 2-microglobulin (uβ2-MG) and serum complement C3 (C3), complement C4 (C4), creatinine (Cr), blood urea nitrogen (BUN) and cystatin C (Cys C)) in discriminating LN renal damage...
January 1, 2018: Lupus
https://www.readbyqxmd.com/read/29451066/psychometric-properties-of-mdhaq-rapid3-in-patients-with-systemic-lupus-erythematosus
#18
N Annapureddy, D Giangreco, H Devilliers, J A Block, M Jolly
Background The Multidimensional Health Assessment Questionnaire (MDHAQ) is a patient-reported outcome (PRO) tool that includes the Routine Assessment of Patient Index Data 3 (RAPID3), an index that can be calculated at the point of care. The objective of this study was to perform psychometric analyses of MDHAQ/RAPID3 to study its measurement properties in systemic lupus erythematosus (SLE). Methods The MDHAQ was completed by 161 SLE patients in routine care, along with LupusPRO (a disease-specific PRO). The SLE disease-specific activity index (SELENA-SLEDAI) and damage (SDI) were assessed...
January 1, 2018: Lupus
https://www.readbyqxmd.com/read/29450882/the-role-of-neutrophils-in-skin-damage-induced-by-tissue-deposited-lupus-igg
#19
Xuanxuan Guo, Xiang Fang, Guodan He, M Haidar Zaman, Xibin Fei, Wei Qiao, Guo-Min Deng
Skin injury is the second most common clinical manifestation in patients with SLE. Neutrophils are crucial effector cells in immune system. The significance of neutrophils in the pathogenesis of SLE is not clear. This study is to explore the role of neutrophils in skin damage of SLE. We used lupus-prone mice and C57BL/6 mice model of lupus serum IgG induced skin inflammation to investigate neutrophils role in skin damage of SLE. We found a few neutrophils infiltrated in the inflammatory sites of skin in lupus-prone mice and lupus IgG induced skin damaged mice model...
February 16, 2018: Immunology
https://www.readbyqxmd.com/read/29450636/comparing-the-efficacy-of-low-dose-vs-high-dose-cyclophosphamide-regimen-as-induction-therapy-in-the-treatment-of-proliferative-lupus-nephritis-a-single-center-study
#20
Sonal Mehra, Jignesh B Usdadiya, Vikramraj K Jain, Durga Prasanna Misra, Vir Singh Negi
Cyclophosphamide (CYC) has been the backbone immunosuppressive drug to achieve sustained remission in lupus nephritis (LN). The aim was to evaluate the efficacy and compare adverse effects of low and high dose intravenous CYC therapy in Indian patients with proliferative lupus nephritis. An open-label, parallel group, randomized controlled trial involving 75 patients with class III/IV LN was conducted after obtaining informed consent. The low dose group (n = 38) received 6 × 500 mg CYC fortnightly and high dose group (n = 37) received 6 × 750 mg/m 2 CYC four-weekly followed by azathioprine...
February 15, 2018: Rheumatology International
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