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https://www.readbyqxmd.com/read/27924862/mesenchymal-stem-cell-transplantation-can-restore-lupus-disease-associated-mirna-expression-and-th1-th2-ratios-in-a-murine-model-of-sle
#1
Eun Wha Choi, MinJae Lee, Ji Woo Song, Il Seob Shin, Sung Joo Kim
C3.MRL-Fas(lpr)/J mice spontaneously develop high titers of anti-dsDNA, mild glomerular nephritis, and severe lymphoproliferation symptoms. This study aimed to compare the effects of long-term serial administration of human adipose tissue-derived mesenchymal stem cells (ASCs), and cyclophosphamide treatment in C3.MRL-Fas(lpr)/J mice using a murine SLE model. C3.MRL-Fas(lpr)/J mice were divided into saline (C), cyclophosphamide (Y), and ASC (H) treatment groups. Background-matched control C3H mice treated with saline (N) were also compared...
December 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27914701/il-2-anti-il-2-complexes-ameliorate-lupus-nephritis-by-expansion-of-cd4-cd25-foxp3-regulatory-t%C3%A2-cells
#2
Ji-Jing Yan, Jae-Ghi Lee, Joon Young Jang, Tai Yeon Koo, Curie Ahn, Jaeseok Yang
Adoptive transfer of regulatory T cells (Tregs) can delay disease progression and reduce mortality in lupus-prone mice. Here, we tested whether complex (IL-2C) consisting of IL-2 and anti-IL-2 monoclonal antibody (JES6-1) ameliorates lupus nephritis by expanding Tregs as an alternative to problematic Treg infusion therapy. IL-2C treatment of NZB/W F1 mice induced an effective and sustained expansion of CD4(+)CD25(+)Foxp3(+) Tregs in both the kidneys and spleen along with decreased renal infiltration of T cells, B cells, and innate immune cells...
November 30, 2016: Kidney International
https://www.readbyqxmd.com/read/27900491/treatable-renal-disease-in-children-with-silent-lupus-nephritis-detected-by-baseline-biopsy-association-with-serum-c3-levels
#3
Hiroyuki Wakiguchi, Syuji Takei, Tomohiro Kubota, Akinori Miyazono, Yoshifumi Kawano
Lupus nephritis is identified in up to 75% of patients with juvenile systemic lupus erythematosus and may present with abnormal urinary findings (overt lupus nephritis) or be apparent only upon renal biopsy (silent lupus nephritis). We investigated whether serum complement levels correlate with renal pathology in pediatric patients with silent lupus nephritis. We performed baseline renal biopsy in 45 children diagnosed with juvenile systemic lupus erythematosus who were admitted to Kagoshima University Hospital between January 2000 and June 2015...
November 30, 2016: Clinical Rheumatology
https://www.readbyqxmd.com/read/27846813/granulocyte-colony-stimulating-factor-treatment-ameliorates-lupus-nephritis-through-the-expansion-of-regulatory-t-cells
#4
Ji-Jing Yan, Enkthuya Jambaldorj, Jae-Ghi Lee, Joon Young Jang, Jung Min Shim, Miyeun Han, Tai Yeon Koo, Curie Ahn, Jaeseok Yang
BACKGROUND: Granulocyte colony-stimulating factor (G-CSF) can induce regulatory T cells (Tregs) as well as myeloid-derived suppressor cells (MDSCs). Despite the immune modulatory effects of G-CSF, results of G-CSF treatment in systemic lupus erythematosus are still controversial. We therefore investigated whether G-CSF can ameliorate lupus nephritis and studied the underlying mechanisms. METHODS: NZB/W F1 female mice were treated with G-CSF or phosphate-buffered saline for 5 consecutive days every week from 24 weeks of age, and were analyzed at 36 weeks of age...
November 15, 2016: BMC Nephrology
https://www.readbyqxmd.com/read/27843374/potential-serum-and-urine-biomarkers-in-patients-with-lupus-nephritis-and-the-unsolved-problems
#5
REVIEW
Song-Chou Hsieh, Chang-Youh Tsai, Chia-Li Yu
Lupus nephritis (LN) is one of the most frequent and serious complications in the patients with systemic lupus erythematosus. Autoimmune-mediated inflammation in both renal glomerular and tubulointerstitial tissues is the major pathological finding of LN. In clinical practice, the elevated anti-dsDNA antibody titer concomitant with reduced complement C3 and C4 levels has become the predictive and disease-activity surrogate biomarkers in LN. However, more and more evidences suggest that autoantibodies other than anti-dsDNA antibodies, such as anti-nucleosome, anti-C1q, anti-C3b, anti-cardiolipin, anti-endothelial cell, anti-ribonuclear proteins, and anti-glomerular matrix (anti-actinin) antibodies, may also involve in LN...
2016: Open Access Rheumatology: Research and Reviews
https://www.readbyqxmd.com/read/27821389/staphylococcus-infection-associated-gn-spectrum-of-iga-staining-and-prevalence-of-anca-in-a-single-center-cohort
#6
Anjali A Satoskar, Sarah Suleiman, Isabelle Ayoub, Jessica Hemminger, Samir Parikh, Sergey V Brodsky, Cherri Bott, Edward Calomeni, Gyongyi M Nadasdy, Brad Rovin, Lee Hebert, Tibor Nadasdy
BACKGROUND AND OBJECTIVES: Staphylococcus infection-associated GN (SAGN) is a well recognized disease entity, particularly because of the frequent IgA-dominant glomerular immunoglobulin staining on kidney biopsy. Biopsy features can resemble two other disease entities - primary IgA nephropathy and Henoch-Schönlein purpura nephritis - posing a diagnostic pitfall. This is clinically relevant because of the crucial difference in the therapeutic approach. The diagnosis of SAGN is further complicated by the variability in the degree of glomerular IgA (and C3) staining, the extent of electron dense immune-type deposits, and positive ANCA serology in some patients...
November 7, 2016: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/27804111/urinary-b-cell-activating-factor-baff-and-a-proliferation-inducing-ligand-april-potential-biomarkers-of-active-lupus-nephritis
#7
Sanat Phatak, Smriti Chaurasia, Shravan Kumar Mishra, Ranjan Gupta, Vinita Agrawal, Amita Aggarwal, Ramnath Misra
B cell Activating Factor (BAFF) and A Proliferation Inducing Ligand (APRIL) help in B cell activation, maintenance and plasma cell survival. B cell infiltration has been demonstrated in kidneys of patients with Lupus Nephritis (LN). Serum levels of BAFF and APRIL have shown inconsistent relationships with lupus disease activity. We evaluated urinary levels of BAFF and APRIL as biomarker for LN. Thirty-six patients with proliferative lupus nephritis (AN), 10 with active lupus without nephritis (AL) and 15 healthy controls (HC) were studied...
November 2, 2016: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/27780265/autoantibodies-against-modified-histone-peptides-in-sle-patients-are-associated-with-disease-activity-and-lupus-nephritis
#8
Jürgen Dieker, Jo H Berden, Marinka Bakker, Jean-Paul Briand, Sylviane Muller, Reinhard Voll, Christopher Sjöwall, Martin Herrmann, Luuk B Hilbrands, Johan van der Vlag
Persistent exposure of the immune system to death cell debris leads to autoantibodies against chromatin in patients with systemic lupus erythematosus (SLE). Deposition of anti-chromatin/chromatin complexes can instigate inflammation in multiple organs including the kidney. Previously we identified specific cell death-associated histone modifications as targets of autoantibodies in SLE. In this study we addressed, in a large cohort of SLE patients and controls, the question whether plasma reactivities with specific histone peptides associated with serology and clinical features...
2016: PloS One
https://www.readbyqxmd.com/read/27691976/nephropathies-in-the-european-captive-cheetah-acinonyx-jubatus-population
#9
Angelika Url, Verena Krutak, Anna Kübber-Heiss, Sonja Chvala-Mannsberger, Nadia Robert, Nora Dinhopl, Peter Schmidt, Chris Walzer
According to previous studies in captive cheetah ( Acinonyx jubatus ) populations, one of the most threatening diseases besides amyloidosis, myelopathy, veno occlusive disease, and gastritis, is renal failure. Contrary to captive cheetahs in North America and South Africa, morphological data concerning renal lesions in the cheetah European Endangered Species Program (EEP) are lacking. This study details the histological characterization as well as immunohistochemical and morphometrical analysis of nephropathies in 35 captive cheetahs from the EEP, which were necropsied between 1985 and 2003...
September 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/27624649/longitudinal-assessment-of-monocyte-chemoattractant-protein-1-in-lupus-nephritis-as-a-biomarker-of-disease-activity
#10
Ranjan Gupta, Akhilesh Yadav, Amita Aggarwal
Urinary MCP-1 (uMCP-1) levels reflect lupus nephritis (LN) disease activity. However, long-term prospective studies evaluating it as a biomarker are lacking. SLE patients with active nephritis (AN), active disease without nephritis (ANR), and inactive disease (ID) were enrolled. AN patients were followed up every 3 months for 1 year. Urine and serum samples were collected at baseline from all and at follow-up visits in AN group. Urine samples from healthy subjects (HC), rheumatoid arthritis (RA), and diabetic nephropathy (DM) patients (20 each) served as controls...
November 2016: Clinical Rheumatology
https://www.readbyqxmd.com/read/27597802/association-between-igg4-autoantibody-and-complement-abnormalities-in-systemic-lupus-erythematosus
#11
Qingjun Pan, Linjie Guo, Jing Wu, Jun Cai, Huanjin Liao, Qiaofen Lan, Yanxia Peng, Yiming He, Hua-Feng Liu
In order to investigate the association between IgG4 autoantibody and complement abnormalities in systemic lupus erythematosus (SLE), 72 newly diagnosed SLE patients, 67 rheumatoid arthritis (RA) patients, and 41 healthy normals were employed. Serum levels of antinuclear IgG4 and IgG4-specific IgM-rheumatoid factor (RF) were measured, and the correlations between serum levels of antinuclear IgG4 and several clinical parameters were analyzed. Also, the levels of IgG subclasses, C1q, and C3 deposition in lupus nephritis (LN) were detected...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27570219/csf-1r-inhibition-attenuates-renal-and-neuropsychiatric-disease-in-murine-lupus
#12
Samantha A Chalmers, Jing Wen, Justine Shum, Jessica Doerner, Leal Herlitz, Chaim Putterman
Systemic lupus erythematosus (SLE) is a multifactorial autoimmune disease that can affect multiple end organs. Kidney and brain are two of the organs most commonly involved in SLE. Past studies have suggested the importance of macrophages in the pathogenesis of lupus nephritis (LN). Furthermore, as the immune effectors of the brain, microglia have been implicated in pathways leading to neuropsychiatric SLE (NPSLE). We depleted macrophages and microglia using GW2580, a small colony stimulating factor-1 receptor (CSF-1R) kinase inhibitor, in MRL-lpr/lpr (MRL/lpr) mice, a classic murine lupus model that displays features of both LN and NPSLE...
August 25, 2016: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/27557500/downregulation-of-the-phosphatase-jkap-dusp22-in-t-cells-as-a-potential-new-biomarker-of-systemic-lupus-erythematosus-nephritis
#13
Huai-Chia Chuang, Yi-Ming Chen, Wei-Ting Hung, Ju-Pi Li, Der-Yuan Chen, Joung-Liang Lan, Tse-Hua Tan
Systemic lupus erythematosus (SLE) is a complex autoimmune disease that is characterized by systemic inflammation and multiple organ failures. Dysregulation of T cells plays a critical role in SLE pathogenesis. Our previous study indicates that JKAP (also named DUSP22) inhibits T-cell activation and that JKAP knockout mice develop spontaneous autoimmunity; therefore, we investigated whether JKAP downregulation is involved in SLE patients. JKAP protein levels in purified T cells were examined by immunoblotting using blood samples from 43 SLE patients and 32 healthy controls...
August 19, 2016: Oncotarget
https://www.readbyqxmd.com/read/27430116/henoch-sch%C3%A3-nlein-purpura-associated-with-strongyloides-stercoralis-infection
#14
Sveta Janković, Marijana Nikolić, Aleksandra Simović, Ana Vujić
INTRODUCTION: Henoch-Schönlein purpura (HSP) is a small blood vessel vasculitis, which usually manifests during childhood. The exact cause of the disease is unknown. CASE REPORT: We reported a 14-year-old girl who had been admitted to our clinic due to the appearance of red macules on her extremities and face, vomiting, and pain in the abdomen and joints. The patient was initially diagnosed with Henoch-Schönlein purpura. At the end of the fourth week of illness, larvae of Strongyloides stercoralis were detected in stool samples...
May 2016: Vojnosanitetski Pregled. Military-medical and Pharmaceutical Review
https://www.readbyqxmd.com/read/27373903/maternal-outcome-in-pregnant-women-with-lupus-nephritis-a-prospective-multicenter-study
#15
Gabriella Moroni, Andrea Doria, Elisa Giglio, Enrico Imbasciati, Chiara Tani, Margherita Zen, Francesca Strigini, Barbara Zaina, Angela Tincani, Mariele Gatto, Federica de Liso, Claudia Grossi, Pier Luigi Meroni, Gianfranca Cabiddu, Piergiorgio Messa, Pietro Ravani, Marta Mosca
Retrospective studies reported a high incidence of maternal complications in pregnant women with lupus. In this paper we prospectively assessed the rate of risk and the risk factors of maternal outcome in women with stable lupus nephritis who received pre-pregnancy counseling. This prospective multicenter study includes 71 pregnancies in 61 women with lupus nephritis who became pregnant between 2006 and 2013. Complete renal remission was present before pregnancy in 56 cases (78.9%) and mild active nephritis in 15 cases...
November 2016: Journal of Autoimmunity
https://www.readbyqxmd.com/read/27340286/all-things-complement
#16
Joshua M Thurman, Carla M Nester
The complement (C) cascade is an ancient system of proteins whose primary role is to initiate and modulate immune responses. During C activation, circulating proteins are cleaved and nascent cleavage fragments participate in a broad range of downstream innate and adaptive immune functions. Although the majority of these functions are either homeostatic or protective, a large body of experimental and clinical evidence also highlights a central role for the C system in the pathogenesis of many types of glomerular disease...
June 23, 2016: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/27319578/differential-activation-mechanisms-of-serum-c5a-in-lupus-nephritis-and-neuropsychiatric-systemic-lupus-erythematosus
#17
Yuko Sakuma, Tatsuo Nagai, Taku Yoshio, Shunsei Hirohata
OBJECTIVE: To explore the role of C5a in the pathogenesis of neuropsychiatric systemic lupus erythematosus (NPSLE) and lupus nephritis (LN). METHODS: Sera were obtained from 29 patients with NPSLE, 25 with LN, 26 without NPSLE or LN [SLE alone], and 21 healthy donors. Cerebrospinal fluid (CSF) was obtained from 29 NPSLE patients. C5a and C5 were measured by ELISA. Blood-brain barrier (BBB) function was evaluated by Q albumin ([CSF albumin/serum albumin] × 10(3))...
June 20, 2016: Modern Rheumatology
https://www.readbyqxmd.com/read/27278657/jak3-stat-pathway-blocking-benefits-in-experimental-lupus-nephritis
#18
Èlia Ripoll, Laura de Ramon, Juliana Draibe Bordignon, Ana Merino, Nuria Bolaños, Montse Goma, Josep M Cruzado, Josep M Grinyó, Juan Torras
BACKGROUND: Lupus nephritis (LN) is a complex chronic autoimmune disease of unknown etiology characterized by loss of tolerance against several self-antigens. Cytokines are known to be central players in LN pathogenesis. The Janus kinase-signal transducer and activator of transcription (JAK-STAT) pathway is one important pathway that mediates signal transduction of several cytokines. In this study, we examined the pathogenic role of this pathway and how CP-690,550 treatment influences LN outcome...
2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27194832/unmasking-of-complements-using-proteinase-k-in-formalin-fixed-paraffin-embedded-renal-biopsies
#19
R Nada, A Kumar, V G Kumar, K L Gupta, K Joshi
Renal biopsy interpretation requires histopathology, direct immunofluorescence (DIF) and electron microscopy. Formalin-fixed, paraffin-embedded tissue (FFPE) sent for light microscopy can be used for DIF after antigen retrieval. However, complement staining has not been satisfactory. We standardized DIF using proteinase-K for antigen retrieval in FFPE renal biopsies. A pilot study was conducted on known cases of membranous glomerulonephritis (MGN), membranoproliferative type-1 (MPGN-1), immunoglobulin A nephropathy (IgAN), and anti-glomerular basement disease (anti-GBM)...
May 2016: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/27192942/therapeutic-blockade-of-immune-complex-mediated-glomerulonephritis-by-highly-selective-inhibition-of-bruton-s-tyrosine-kinase
#20
Samantha A Chalmers, Jessica Doerner, Todd Bosanac, Sara Khalil, Dustin Smith, Christian Harcken, Janice Dimock, Evan Der, Leal Herlitz, Deborah Webb, Elise Seccareccia, Di Feng, Jay S Fine, Meera Ramanujam, Elliott Klein, Chaim Putterman
Lupus nephritis (LN) is a potentially dangerous end organ pathology that affects upwards of 60% of lupus patients. Bruton's tyrosine kinase (BTK) is important for B cell development, Fc receptor signaling, and macrophage polarization. In this study, we investigated the effects of a novel, highly selective and potent BTK inhibitor, BI-BTK-1, in an inducible model of LN in which mice receive nephrotoxic serum (NTS) containing anti-glomerular antibodies. Mice were treated once daily with vehicle alone or BI-BTK-1, either prophylactically or therapeutically...
2016: Scientific Reports
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