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Hantao Lou, Matthew C Pickering
Extracellular DNA is secreted from various sources including apoptotic cells, NETotic neutrophils and bacterial biofilms. Extracellular DNA can stimulate innate immune responses to induce type-I IFN production after being endocytosed. This process is central in antiviral responses but it also plays important role in the pathogenesis of a range of autoimmune diseases such as systemic lupus erythematosus. We discuss the recent advances in the understanding of the role of extracellular DNA, released from apoptotic and NETotic cells, in autoimmunity...
March 19, 2018: Cellular & Molecular Immunology
Qiyu Liu, Chong Lu, Wanjun Dai, Ke Li, Jing Xu, Yunke Huang, Guiling Li, Yu Kang, Anil K Sood, Congjian Xu
In order to elucidate the mechanisms underlying the biobehavioral factors responsible for cervical cancer from the perspective of lncRNAs. Tumor samples were obtained from patients with stage Ib-IIb squamous cervical cancer, which were divided into high- and low-risk groups according to biobehavioral risk factors. A lncRNA + mRNA microarray was performed, and the results were validated using qRT-PCR. Gene ontology (GO), pathway, and lncRNA-mRNA co-expression analysis were performed to predict the potential functions of the differentially expressed transcripts...
2018: Bioscience Trends
Arantzazu Zabala, Monika Salgueiro, Oihane Sáez-Atxukarro, Javier Ballesteros, Guillermo Ruiz-Irastorza, Rafael Segarra
OBJECTIVES: Systemic lupus erythematosus (SLE) is a chronic autoimmune disease. Its most prevalent manifestation is neuropsychiatric SLE (NP-SLE), which is characterized by increased involvement of the nervous system, with relevant symptoms, such as marked cognitive deficits, which are directly involved in subsequent functional disability. The objective of this study is to identify and compare the profile of cognitive deficits in patients with NP-SLE and patients with non-neuropsychiatric SLE (nonNP-SLE) by means of a systematic review and meta-analysis...
March 19, 2018: Journal of the International Neuropsychological Society: JINS
Purva V Sharma, Michael Witteman, Swethika Sundaravel, Tulisa Larocca, Yuanming Zhang, Harry Goldsztajn
Adult T cell lymphoma (ATL), is a peripheral T cell neoplasm associated with infection by human T-lymphotropic virus (HTLV). This is a case of a 28-year-old lady who presented with back pain for the past month and recent onset weakness in her lower extremities bilaterally. She has a history of T-cell lymphoma secondary to HTLV-1 under remission since 2014 and systemic lupus erythematosus complicated by lupus nephritis. On physical examination patient had hyper-reflexia in both knees, ankle clonus bilaterally and spasticity in both her lower extremities...
February 2018: Intractable & Rare Diseases Research
Hongwen Zhang, Fang Wang, Huijie Xiao, Yong Yao
Low-molecular-weight proteinuria is one of the characteristic clinical manifestations of renal tubular and interstitial diseases. Low-molecular-weight proteinuria is defined as excessive urinary loss of α1-microglobulin, β2-microglobulin, or other low-molecular-weight plasma proteins. The current study examined the ratio of urinary α1-microglobulin to microalbumin in 24 Chinese pediatric patients with renal tubular and interstitial diseases, including 10 patients with Dent disease, 2 patients with Lowe syndrome, 6 patients with acute tubulointerstitial nephritis (ATIN), 4 patients with acute tubulointerstitial nephritis with uveitis syndrome (TINU), and 2 patients with nephronophthisis (NPHP)...
February 2018: Intractable & Rare Diseases Research
Franchesca Cruz-Pérez, Salvador Vilá, Grissel Ríos, Luis M Vilá
Macrophage-activating syndrome (MAS) is a rare condition characterized by dysfunctional macrophage activation leading to overproduction of cytokines and phagocytosis of erythrocytes, leukocytes, and platelets. MAS is associated with infectious diseases, malignancies, and autoimmune rheumatic disorders. Herein, we present a 22-year-old Hispanic woman with SLE who was hospitalized because of a three-week history of fever, fatigue, polyarthralgia, nausea, and abdominal pain. Initial laboratories showed severe pancytopenia with marked elevation of liver enzymes and ferritin levels...
2018: Case Reports in Rheumatology
Zhi-Wei Lai, Ryan Kelly, Thomas Winans, Ivan Marchena, Ashwini Shadakshari, Julie Yu, Maha Dawood, Ricardo Garcia, Hajra Tily, Lisa Francis, Stephen V Faraone, Paul E Phillips, Andras Perl
BACKGROUND: Patients with systemic lupus erythematosus have T-cell dysfunction that has been attributed to the activation of the mammalian target of rapamycin (mTOR). Rapamycin inhibits antigen-induced T-cell proliferation and has been developed as a medication under the generic designation of sirolimus. We assessed safety, tolerance, and efficacy of sirolimus in a prospective, biomarker-driven, open-label clinical trial. METHODS: We did a single-arm, open-label, phase 1/2 trial of sirolimus in patients with active systemic lupus erythematosus disease unresponsive to, or intolerant of, conventional medications at the State University of New York Upstate Medical University (Syracuse, NY, USA)...
March 15, 2018: Lancet
David R Fernandez, Mary K Crow
No abstract text is available yet for this article.
March 15, 2018: Lancet
Titilola Falasinnu, Yashaar Chaichian, Michelle B Bass, Julia F Simard
PURPOSE OF REVIEW: This review evaluated gender and race/ethnic representation in randomized controlled trials (RCTs) of patients with systemic lupus erythematosus (SLE). RECENT FINDINGS: Whites comprise 33% of prevalent SLE cases and comprised 51% of RCT enrollees. Blacks encompass 43% of prevalent SLE cases, but only represented 14% of RCT enrollees. Hispanics comprise 16% of prevalent SLE cases and 21% of RCT enrollees, while Asians comprise 13% of prevalent SLE cases and 10% of RCT enrollees...
March 17, 2018: Current Rheumatology Reports
Dennis Q Chen, Jourdan M Cancienne, Brian C Werner, Quanjun Cui
PURPOSE: As the medical treatment of systemic lupus erythematosus (SLE) has evolved, the rate of total hip arthroplasty (THA) in SLE patients has increased, with osteonecrosis (ON) being the primary indication for arthroplasty in a quarter of cases. Comparative literature evaluating outcomes following THA for patients with SLE and ON versus patients with non-SLE-related ON or patients with osteoarthritis (OA) is limited. The goal of the present study was to investigate the current trend in SLE patients undergoing THA and compare complications following THA for ON with SLE, ON without SLE, and OA...
March 17, 2018: International Orthopaedics
Kozue Uchio-Yamada, Mayuri Tanaka, Noboru Manabe
C1s deficiency is strongly associated with the development of human systemic lupus erythematosus (SLE); however, the mechanisms by which C1s deficiency contributes to the development of SLE have not yet been elucidated in detail. Using ICR-derived-glomerulonephritis (ICGN) mouse strain that develops SLE and very weakly expresses C1s in the liver, we investigated the protective roles of C1s against SLE. A genetic sequence analysis revealed complete deletion of the C1s1 gene, a mouse homolog of the human C1s gene, with partial deletion of the C1ra and C1rb genes in the ICGN strain...
March 18, 2018: Genes and Immunity
Ruru Guo, Yang Tu, Shaowei Xie, Xue Song Liu, Yang Song, Suli Wang, Xiaoxiang Chen, Liangjing Lu
BACKGROUND/AIMS: Neutrophil extracellular traps (NETs) are known to play an important role in systemic lupus erythematosus (SLE) by triggering innate and adaptive immune responses. The molecular mechanisms responsible for their formation in SLE are still unclear. In this study, we aim to characterize the role of the receptor-interacting protein kinase-1 (RIPK1), a homologous serine/threonine kinase previously implicated in the regulation of necroptosis and tissue injury, in decreasing neutrophil death and formation of NETs, and to investigate the clinical implications of RIPK1 in SLE...
March 13, 2018: Cellular Physiology and Biochemistry
Jae-Il Lee, Yun-Jung Choi, Hi-Jung Park, Kyeong Cheon Jung, Seong Hoe Park
Antibody formation against therapeutic agents, such as tumor necrosis factor inhibitors and Factor VIII, that leads to treatment failure has become a major challenge in the treatment of rheumatoid arthritis and hemophilia. It is well known that anti-CD154 antibodies have the highest potential to inhibit these types of adverse immune responses. Nevertheless, the formation of thromboemboli is the major hurdle in the clinical application of these anti-CD154 blocking antibodies. For this, we attempted to derive an idea as to how this major complication can be eliminated...
March 16, 2018: Biochemical and Biophysical Research Communications
Markus H Hoffmann, Helen Griffiths
Reactive oxygen species (ROS) are created in cells during oxidative phosphorylation by the respiratory chain in the mitochondria or by the family of NADPH oxidase (NOX) complexes. The first discovered and most studied of these complexes, NOX2, mediates the oxidative burst in phagocytes. ROS generated by NOX2 are dreadful weapons: while being essential to kill ingested pathogens they can also cause degenerative changes on tissue if production and release are not balanced by sufficient detoxification. In the last fifteen years evidence has been accumulating that ROS are also integral signalling molecules and are important for regulating autoimmunity and immune-mediated inflammatory diseases...
March 14, 2018: Free Radical Biology & Medicine
Chi-Hone Lien, Ming-Dar Lee
No abstract text is available yet for this article.
March 15, 2018: Journal of Pediatrics
Jennifer L Medlin, Karen E Hansen, Sara S McCoy, Christie M Bartels
OBJECTIVES: Phenotypes differ between late- and early-onset systemic lupus erythematosus (SLE). Prior studies suggested that there may be more pulmonary disease among late-onset patients. Our objective was to perform a systematic review and meta-analysis to evaluate the differences in pulmonary manifestations in late- versus early-onset SLE. METHODS: We searched the literature using PubMed, CINAHL, Web of Science, Cochrane Library, and EMBASE. We excluded studies that did not include American College of Rheumatology SLE classification criteria, an early-onset SLE comparison group, or those that defined late-onset SLE as <50 years of age...
January 31, 2018: Seminars in Arthritis and Rheumatism
Ibtehaj Naqvi, Ruwan Gunaratne, Jessica E McDade, Angelo Moreno, Rachel E Rempel, Douglas C Rouse, Silvia Gabriela Herrera, David S Pisetsky, Jaewoo Lee, Rebekah R White, Bruce A Sullenger
Nucleic acid binding polymers (NABPs) have been extensively used as vehicles for DNA and RNA delivery. More recently, we discovered that a subset of these NABPs can also serve as anti-inflammatory agents by capturing pro-inflammatory extracellular nucleic acids and associated protein complexes that promote activation of toll-like receptors (TLRs) in diseases such as lupus erythematosus. Nucleic-acid-mediated TLR signaling also facilitates tumor progression and metastasis in several cancers, including pancreatic cancer (PC)...
February 23, 2018: Molecular Therapy: the Journal of the American Society of Gene Therapy
Daniel Ruiz, Jim C Oates, Diane L Kamen
Evaluation of antiphospholipid antibodies (aPL) and correlation with heart valve abnormalities among patients with systemic lupus erythematosus (SLE). Nested case-control study was conducted with 70 patients with SLE selected from a longitudinal database based on levels of aPL and presence or absence of valve disease by echocardiogram. Valvular abnormalities observed were regurgitation (52), other (14), artificial valves (4), stenosis (2), thickening (2) and no Libman-Sacks endocarditis (0). The mitral valve was the most commonly affected (30 abnormalities), followed by the tricuspid (20 abnormalities)...
March 2018: American Journal of the Medical Sciences
Dongyan Shi, Tongguan Tian, Shu Yao, Kelei Cao, Xingxing Zhu, Mingshun Zhang, Shuang Wen, Longjun Li, Meiqing Shi, Hong Zhou
Neuropsychiatric (NP) involvement in systemic lupus erythematosus (SLE) severely impacts patients' quality of life and leads to a poor prognosis. The current therapeutic protocol, corticosteroid administration, can also induce neuropsychiatric disorders. FTY720 is an immunomodulator that selectively confines lymphocytes in lymph nodes and reduces autoreactive T cell recruitment to the central nervous system (CNS). This study aimed to identify a novel therapeutic strategy for NPSLE. B6.MRL-lpr mice were treated with oral administration of FTY720 (2 mg/kg) three times per week for 12 weeks, to evaluate its efficacy in a model of NPSLE...
March 13, 2018: Brain, Behavior, and Immunity
Marta Gravito-Soares, Elisa Gravito-Soares, Manuela Ferreira, Luis Tomé
No abstract text is available yet for this article.
March 13, 2018: Gastroenterología y Hepatología
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