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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/29456540/kallikrein-kinin-system-suppresses-type-i-interferon-responses-a-novel-pathway-of-interferon-regulation
#2
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/29450882/the-role-of-neutrophils-in-skin-damage-induced-by-tissue-deposited-lupus-igg
#3
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/29446734/cx3cl1-cx3cr1-axis-as-the-therapeutic-potential-in-renal-diseases-friend-or-foe
#4
Quan Zhuang, Ke Cheng, Yingzi Ming
The fractalkine receptor chemokine (C-X3-C motif) receptor 1 (CX3CR1) and its highly selective ligand CX3CL1 mediate chemotaxis and adhesion of immune cells, which are involved in the pathogenesis and progression of numerous inflammatory disorders and malignancies. The CX3CL1/CX3CR1 axis has recently drawn attention as a potential therapeutic target because it is involved in the ontogeny, homeostatic migration, or colonization of renal phagocytes. We performed a Medline/PubMed search to detect recently published studies that explored the relationship between the CX3CL1/CX3CR1 axis and renal diseases and disorders, including diabetic nephropathy, renal allograft rejection, infectious renal diseases, IgA nephropathy, fibrotic kidney disease, lupus nephritis and glomerulonephritis, acute kidney injury and renal carcinoma...
February 13, 2018: Current Gene Therapy
https://www.readbyqxmd.com/read/29446059/the-novel-involvement-of-podocyte-autophagic-activity-in-the-pathogenesis-of-lupus-nephritis
#5
Juan Jin, Meiyu Ye, Li Zhao, Wenli Zou, Wei Shen, Hongjuan Zhang, Jianguang Gong, Qiang He
BACKGROUND: Lupus nephritis (LN) is one of the most common and severe complications in Systemic lupus erythematosus patients, and the mechanism underlining the pathogenesis of LN is still unknown. Autophagy plays vital roles in maintaining cell homeostasis and is involved in the pathogenesis of many diseases. In this study, we investigated the role of autophagy in the progression of LN. METHODS: Autophagic activities in podocytes of both LN patients (Class IV and V) and mice were evaluated...
February 15, 2018: Histology and Histopathology
https://www.readbyqxmd.com/read/29443761/haemolytic-uremic-syndrome-due-to-infection-with-adenovirus-a-case-report-and-literature-review
#6
Victoria Birlutiu, Rares Mircea Birlutiu
RATIONALE: Haemolytic-uremic syndrome is a rare but serious complication of bacterial and viral infections, which is characterized by the triad of: acute renal failure, microangiopathic haemolytic anemia and thrombocytopenia, sometimes severe, requiring peritoneal dialysis. In Europe, hemolytic-uremic syndrome (HUS) in paediatric pathology is primarily caused by Shiga toxin-producing Escherichia coli (STEC) O157, followed by O26. Beside these etiologies, there are other bacterial and viral infections, and also noninfectious ones that have been associated to lead to HUS as well: in the progression of neoplasia, medication-related, post-transplantation, during pregnancy or associated with the antiphospholipid syndrome, systemic lupus erythematosus or family causes with autosomal dominant or recessive inheritance...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29440621/urinary-levels-of-sirtuin-1-associated-with-disease-activity-in-lupus-nephritis
#7
Dolores Olivares, Javier Perez-Hernandez, Maria J Forner, Cristina Pérez-Soriano, Maria C Tormos, Guillermo T Sáez, Felipe J Chaves, Josep Redón, Raquel Cortés
Identifying new markers of disease flares in lupus nephritis (LN) that facilitate patient stratification and prognosis is important. Therefore, the aim of this study was to analyze whether urinary SIRT1 expression was altered in LN and whether SIRT1 values in urine could be valuable biomarker of disease activity. In a cohort study, urinary pellets from 40 patients diagnosed with systemic lupus erythematosus (SLE) were analyzed. Clinical measures of lupus activity were assessed. The expression of SIRT1 was quantified by quantitative PCR (qRT-PCR) and immunoblot, then compared between patients with active lupus nephritis, in remission and healthy controls...
February 12, 2018: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29439290/cell-death-nucleic-acids-and-immunity-inflammation-beyond-the-grave
#8
REVIEW
Keith B Elkon
Cells of the innate immune system are rigged with sensors that detect nucleic acids derived from microbes, especially viruses. It has become clear that these same sensors that respond to nucleic acids derived from damaged cells or defective intracellular processing are implicated in triggering diseases such as lupus and arthritis. The ways in which cells die and the concomitant presence of proteins and peptides that allow nucleic acids to re-enter cells profoundly influence innate immune responses. This review briefly discusses different types of programmed necrosis such as pyroptosis, necroptosis and NETosis and explains how nucleic acids can engage intracellular receptors and stimulate inflammation...
February 13, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29438163/the-interplay-between-tuberculosis-and-systemic-lupus-erythematosus
#9
Gustavo Guimarães Moreira Balbi, Francinne Machado-Ribeiro, Cláudia D L Marques, Flávio Signorelli, Roger Abramino Levy
PURPOSE OF REVIEW: Tuberculosis (TB) is a millenarian chronic infection and, yet, remains a major global health problem. The interaction between systemic lupus erythematosus (SLE) and TB is complex, as one seems to be a risk factor for the development of the other. SLE patients are more likely to develop TB, that is more frequently extrapulmonary, with more extensive pulmonary involvement, and with a higher relapse rate. RECENT FINDINGS: Different studies suggest that TB is more prevalent in SLE patients and that TB may actually be a risk factor for the development of the disease...
February 12, 2018: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/29434811/regulatory-effects-of-four-ginsenoside-monomers-in-humoral-immunity-of-systemic-lupus-erythematosus
#10
Xin Yu, Na Zhang, Wanfu Lin, Chen Wang, Wei Gu, Changquan Ling, Yinglu Feng, Yonghua Su
Ginsenosides Rb1, Rh1, Rg1 and Rg3 are known as the main active components extracted from the roots of the Panax ginseng C.A. Meyer, and were reported to have immunoregulatory effects. Disruption of B-cell immune regulation during the pathogenesis of systemic lupus erythematosus (SLE) may lead to the production of large amounts of antibodies. The present study investigated the effects of the four ginsenoside monomers on B-cell immune regulation and observed that they inhibited the proliferation and secretion of B cells induced by LPS, caused an upregulation of the expression of apoptosis-associated proteins Fas/Fas ligand and caspase-3, the expression of FcγRIIB (CD32) as well as the proportion of inactive B cells (CD19+CD27-)...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29434586/bioactive-lipids-and-chronic-inflammation-managing-the-fire-within
#11
REVIEW
Valerio Chiurchiù, Alessandro Leuti, Mauro Maccarrone
Inflammation is an immune response that works as a contained fire that is pre-emptively sparked as a defensive process during infections or upon any kind of tissue insult, and that is spontaneously extinguished after elimination or termination of the damage. However, persistent and uncontrolled immune reactions act as a wildfire that promote chronic inflammation, unresolved tissue damage and, eventually, chronic diseases. A wide network of soluble mediators, among which endogenous bioactive lipids, governs all immune processes...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29430717/cutaneous-infiltration-of-plasmacytoid-dendritic-cells-and-t-regulatory-cells-in-skin-lesions-of-polymorphic-light-eruption
#12
M T Rossi, M Arisi, S Lonardi, L Lorenzi, M Ungari, F Serana, M Fusano, E Moggio, P G Calzavara-Pinton, M Venturini
BACKGROUND: Polymorphic light eruption (PLE) is the most common autoimmune photodermatosis. Plasmacytoid dendritic cells (PDCs) are important mediators of innate anti-microbial immunity involved in the pathogenesis of many inflammatory skin diseases. In addition to PDCs, regulatory T cells (Tregs) are involved in controlling inflammation and adaptative immunity in skin by their immunosoppressive capacity. OBJECTIVE: The aim of the present study was to investigate the presence of PDCs and Tregs in photoexposed skin from PLE compared to healthy skin...
February 11, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29427009/anti-tubulin-%C3%AE-1c-autoantibody-in-systemic-lupus-erythematosus-a-novel-indicator-of-disease-activity-and-vasculitis-manifestations
#13
Xiaozhen Zhao, Yongjing Cheng, Yuzhou Gan, Rulin Jia, Lei Zhu, Xiaolin Sun
A variety of autoantibodies has been involved in the pathogenesis of systemic lupus erythematosus (SLE), some of which are well known and applied as disease biomarkers. This study aimed to determine the prevalence of a novel autoantibody, anti-tubulin-α-1C, in patients with SLE and investigate its clinical significance. Anti-tubulin-α-1C autoantibody levels were determined by enzyme-linked immunosorbent assay (ELISA) in 128 SLE patients, 38 primary Sjögren's syndrome (pSS) patients, and 106 healthy controls (HCs)...
February 9, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29425937/ige-in-lupus-pathogenesis-friends-or-foes
#14
REVIEW
Jean-François Augusto, Marie-Elise Truchetet, Nicolas Charles, Patrick Blanco, Christophe Richez
Systemic lupus erythematosus (SLE) is a complex autoimmune disease involving multiple immunological pathways. Recently, several studies have suggested an implication of Immunoglobulin E (IgE) in the pathophysiology of SLE. In the Lyn-/- and FcγIIB-/-.Yaa lupus mouse models, autoreactive IgE activate basophils, and promote a Th2 environment with, subsequently, production of autoantibodies by plasma cells. Autoreactive IgE has been also shown to play a role in the activation of human plasmacytoid dendritic cells (pDCs), in synergy with IgG, which results in an increase of interferon-alpha (IFN-α) production...
February 6, 2018: Autoimmunity Reviews
https://www.readbyqxmd.com/read/29423047/baff-and-april-expression-as-an-autoimmune-signature-of-membranous-nephropathy
#15
Seung Seok Han, Seung Hee Yang, Hyung Ah Jo, Yun Jung Oh, Minkyoung Park, Joo Young Kim, Hajeong Lee, Jung Pyo Lee, Sang-Ho Lee, Kwon Wook Joo, Chun Soo Lim, Yon Su Kim, Dong Ki Kim
Background: Based on the fact that B-cell activating factor (BAFF) and a proliferation-inducing ligand (APRIL) have a regulatory role in B cell biology, excessive levels of these cytokines can promote autoimmune pathogenesis. However, the expression and implication remain unresolved in cases of membranous nephropathy (MN). Results: The plasma BAFF levels of the primary MN patients were higher than those of healthy controls but lower than those of secondary MN patients, whereas the APRIL levels were similar between the MN patients and healthy controls...
January 9, 2018: Oncotarget
https://www.readbyqxmd.com/read/29422815/the-role-of-regulatory-t-cells-and-genes-involved-in-their-differentiation-in-pathogenesis-of-selected-inflammatory-and-neoplastic-skin-diseases-part-iii-polymorphisms-of-genes-involved-in-tregs-activation-and-function
#16
REVIEW
Bogusław Nedoszytko, Małgorzata Sokołowska-Wojdyło, Joanna Renke, Magdalena Lange, Piotr Trzonkowski, Michał Sobjanek, Aneta Szczerkowska-Dobosz, Marek Niedoszytko, Aleksandra Górska, Jan Romantowski, Jarosław Skokowski, Leszek Kalinowski, Roman J Nowicki
Regulatory T cells (Tregs) represent a cell type that promotes immune tolerance to autologous components and maintains immune system homeostasis. The abnormal function of Tregs is relevant to the pathogenesis of several skin diseases like psoriasis, atopic dermatitis, systemic lupus erythematosus, cutaneous T-cell lymphomas, and skin cancer and is also important in rheumatoid arthritis, diabetes and other autoimmune diseases. In this review, we will summarize the role of mutations and/or polymorphisms of genes involved in Tregs development, and functions in the pathogenesis of selected skin diseases...
December 2017: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/29422534/il-6-stat3-pathway-induced-deficiency-of-rfx1-contributes-to-th17-dependent-autoimmune-diseases-via-epigenetic-regulation
#17
Ming Zhao, Yixin Tan, Qiao Peng, Cancan Huang, Yu Guo, Gongping Liang, Bochen Zhu, Yi Huang, Aiyun Liu, Zijun Wang, Mengying Li, Xiaofei Gao, Ruifang Wu, Haijing Wu, Hai Long, Qianjin Lu
Epigenetic modifications affect the differentiation of T cell subsets and the pathogenesis of autoimmune diseases, but many mechanisms of epigenetic regulation of T cell differentiation are unclear. Here we show reduced expression of the transcription factor RFX1 in CD4 + T cells from patients with systemic lupus erythematosus, which leads to IL-17A overexpression through increased histone H3 acetylation and decreased DNA methylation and H3K9 tri-methylation. Conditional deletion of Rfx1 in mice exacerbates experimental autoimmune encephalomyelitis and pristane-induced lupus-like syndrome and increases induction of Th17 cells...
February 8, 2018: Nature Communications
https://www.readbyqxmd.com/read/29414660/increased-circulating-cd4-cxcr5-foxp3-follicular-regulatory-t-cells-correlated-with-severity-of-systemic-lupus-erythematosus-patients
#18
Chen Liu, Dongwei Wang, Ying Song, Songsong Lu, Jingzhong Zhao, Hui Wang
As one specialized subset of regulatory T cells (Tregs), follicular regulatory T cells (TFR) could suppress follicular helper T cells (TFH) and B cells in germinal centers to maintain immune homeostasis. The unbalance of TFR and TFH cells could result in abnormal germinal center responses and contribute to pathogenesis of autoimmune diseases. However, the role of TFR cells in systemic lupus erythematosus (SLE) remains unclear. This study revealed a significant increase of CD4+CXCR5+FOXP3+ TFR cells in peripheral blood of SLE patients compared with healthy controls...
January 30, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29414322/upregulated-fractalkine-levels-in-chinese-patients-with-lupus-nephritis
#19
Yanwu You, Yueqiu Qin, Xu Lin, Fafen Yang, Junjie Wang, Fang Yuan, Suren R Sooranna, Liao Pinhu
OBJECTIVE: To investigate the expression levels of fractalkine (FKN) mRNA in peripheral blood mononuclear cells (PBMCs) and FKN protein in serum of patients with lupus nephritis (LN) from China, and to evaluate the associations between the expression of FKN and systemic lupus erythematosus disease activity index 2000 (SLEDAI-2 K), anti-double-stranded DNA and complement proteins in LN patients. METHODS: Real-time quantitative polymerase chain reaction and enzyme-linked immunosorbent assay were used to detect the expression levels of FKN mRNA in PBMCs and FKN protein in serum separately from 105 patients with LN and 52 healthy controls...
February 5, 2018: Cytokine
https://www.readbyqxmd.com/read/29413506/pulmonary-arterial-hypertension-in-the-setting-of-scleroderma-is-different-than-in-the-setting-of-lupus-a-review
#20
REVIEW
Isabel S Bazan, Kofi A Mensah, Anastasiia A Rudkovskaia, Percy K Adonteng-Boateng, Erica L Herzog, Lenore Buckley, Wassim H Fares
Pulmonary hypertension (PH) is a clinical syndrome that is subdivided into five groups per the World Health Organization (WHO) classification, based largely on hemodynamic and pathophysiologic criteria. WHO Group 1 PH, termed pulmonary arterial hypertension (PAH), is a clinically progressive disease that can eventually lead to right heart failure and death, and it is hemodynamically characterized by pre-capillary PH and increased pulmonary vascular resistance in the absence of elevated left ventricular filling pressures...
January 2018: Respiratory Medicine
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