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https://www.readbyqxmd.com/read/29219063/an-insight-on-the-pathogenesis-and-treatment-of-systemic-lupus-erythematosus
#1
Murtaza Ali, Chelapram K Firoz, Nasimudeen R Jabir, Mohd Rehan, Mohd Shahnawaz Khan, Shams Tabrez
BACKGROUND AND OBJECTIVE: Systemic lupus erythematosus (SLE) is a diverse autoimmune disorder, evoked in response to self-immune system that leads to immune complex depositions and organ damage. The exact mechanism of SLE pathogenesis is still unclear but certain genetic and environmental factors have been suggested in the literature that could influence its pathogenesis. The modulation in B- and T- cell responses and genetic variations could lead to abnormal lymphocyte functions and the production of antibodies against the indigenous proteins and the immune complex depositions...
December 7, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/29214407/clinical-features-and-pathogenesis-of-membranoproliferative-glomerulonephritis-a-nationwide-analysis-of-the-japan-renal-biopsy-registry-from-2007-to-2015
#2
Naoki Nakagawa, Naoyuki Hasebe, Motoshi Hattori, Michio Nagata, Hitoshi Yokoyama, Hiroshi Sato, Hitoshi Sugiyama, Akira Shimizu, Yoshitaka Isaka, Shoichi Maruyama, Ichiei Narita
BACKGROUND: The incidence and age distribution of membranoproliferative glomerulonephritis (MPGN) vary throughout the world by race and ethnicity. We sought to evaluate the clinical features, pathogenesis, and age distribution of MPGN among a large nationwide data from the Japan Renal Biopsy Registry (J-RBR). METHODS: A cross-sectional survey of 593 patients with MPGN (types I and III) registered in the J-RBR between 2007 and 2015 was conducted. Clinical parameters, and laboratory findings at diagnosis were compared between children (< 20 years), adults (20-64 years), and elderly patients (≥ 65 years)...
December 6, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29214036/strong-viral-associations-with-sle-among-filipinos
#3
Evan S Vista, Michael H Weisman, Mariko L Ishimori, Hua Chen, Rebecka L Bourn, Ben F Bruner, Laniyati Hamijoyo, Robelle D Tanangunan, Noga J Gal, Julie M Robertson, John B Harley, Joel M Guthridge, Sandra V Navarra, Judith A James
Objectives: Epstein-Barr virus (EBV) is considered an important environmental factor in SLE aetiology, but the relationship between SLE and EBV in the Filipino population is unknown. We tested associations between SLE, lupus-associated autoantibodies and seropositivity for EBV and other herpes viruses in the Filipino population. Methods: Sera from Filipino patients with SLE (n=233), unaffected first-degree relatives (FDRs, n=543) and unrelated controls (n=221) were tested for antibodies against EBV, cytomegalovirus (CMV) and herpes simplex viruses (HSV-1 and HSV-2) by standardised ELISAs...
2017: Lupus Science & Medicine
https://www.readbyqxmd.com/read/29213125/the-role-of-semaphorins-in-immune-responses-and-autoimmune-rheumatic-diseases
#4
REVIEW
Masayuki Nishide, Atsushi Kumanogoh
Semaphorins have a well-characterized role in guiding axon repulsion during development; however, the important contribution of these proteins in immunity is becoming increasingly clear. Immunoregulatory semaphorins, termed 'immune semaphorins', have roles in regulating immune cell activation, differentiation, mobility and migration. These proteins are also intimately associated with the pathogenesis of autoimmune diseases including rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), systemic sclerosis (SSc) and anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV)...
December 7, 2017: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/29212985/bone-formation-parameters-of-the-biopsied-ilium-differ-between-subtrochanteric-and-diaphyseal-atypical-femoral-fractures-in-bisphosphonate-treated-patients
#5
Naoki Kondo, Tomomi Fukuhara, Yo Watanabe, Dai Miyasaka, Noriaki Yamamoto, Hiroe Sato, Yoko Wada, Takeshi Nakatsue, Junichi Fujisawa, Mayumi Sakuma, Norio Imai, Takuya Yoda, Ichiei Narita, Naoto Endo
Atypical femoral fractures (AFFs) are defined as atraumatic or low-trauma fractures located in the subtrochanteric or diaphyseal sites. Long-term bisphosphonates (BPs) are administered to prevent fragility fractures in patients with primary osteoporosis or collagen diseases who are already taking glucocorticoids (GCs). Long-term BP use is one of the most important risk factors for AFFs. Its pathogenesis is characterized by severely suppressed bone turnover (SSBT), but whether the characteristics of patients are different regarding to location of fracture site remains unknown...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29206660/recent-developments-in-systemic-lupus-erythematosus-pathogenesis-and-applications-for-therapy
#6
Mindy S Lo, George C Tsokos
PURPOSE OF REVIEW: Systemic lupus erythematosus (SLE) pathogenesis is complex. Aberrancies of immune function that previously were described but not well understood are now becoming better characterized, in part through recognition of monogenic cases of lupus-like disease. RECENT FINDINGS: We highlight here recent descriptions of metabolic dysfunction, cytokine dysregulation, signaling defects, and DNA damage pathways in SLE. Specifically, we review the effects of signaling abnormalities in mammalian target of rapamycin, Rho kinase, Bruton's tyrosine kinase, and Ras pathways...
December 4, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/29202179/extensively-reorganized-systemic-lymph-nodes-provide-a-feasible-environment-for-self-reactivity-in-lupus-prone-nzb-nzw-f1-mice
#7
Yoichi Kurosawa, Madoka Ozawa, Yasuhiro Kanda, Arata Takeuchi, Toshihiko Kawamura, Ichiei Narita, Tomoya Katakai
Lymphadenopathy is a frequently observed symptom in systemic lupus erythematosus, although the immunological role of lymph nodes (LNs) in systemic autoimmunity remains largely unknown. Here, we performed comprehensive and systematic analyses of LNs in lupus-prone NZB × NZW F1 (BWF1) mice, demonstrating extensive tissue reorganization of the systemic LNs with follicular expansion, hyper germinal center (GC) formation, atrophy of the paracortical T cell area, and expansion of the medulla in aged BWF1 mice bearing glomerulonephritis...
November 30, 2017: International Immunology
https://www.readbyqxmd.com/read/29199882/association-study-of-mecp2-gene-single-nucleotide-polymorphisms-in-juvenile-onset-systemic-lupus-erythematosus-patients-from-iran
#8
Mahdi Mahmoudi, Saeed Aslani, Elham Hamzeh, Vahid Ziaee, Shiva Poursani, Mohammad Hossein Nicknam, Nima Rezaei
INTRODUCTION: Juvenile-onset systemic lupus erythematosus is a multigenic autoimmune disorder. Polymorphisms of MECP2 gene have been reported to increase the risk of adult-onset SLE. In this study, we aimed to analyze if MECP2 gene polymorphisms could impress the proneness to JSLE in Iranian population. MATERIAL AND METHODS: Polymorphisms of MECP2 gene were genotyped in 50 Iranian JSLE patients and 426 matched healthy controls employing the real-time PCR allelic discrimination technique...
December 4, 2017: Fetal and Pediatric Pathology
https://www.readbyqxmd.com/read/29196891/sodium-valproate-modulates-immune-response-by-alternative-activation-of-monocyte-derived-macrophages-in-systemic-lupus-erythematosus
#9
Saeed Mohammadi, Marie Saghaeian-Jazi, Sima Sedighi, Ali Memarian
The anti-inflammatory role of macrophages in apoptotic cells (ACs) clearance is involved in Systemic Lupus Erythematosus (SLE) pathogenesis. The efferocytic capability of macrophages is altered by M1/M2 polarization. Histone deacetylase inhibitors (HDACi) are proposed to enhance the expansion of M2 macrophages. Sodium valproate (VPA) is an HDACi with different anti-inflammatory properties. Here, we aimed to investigate the effects of HDACi by VPA on the polarization of monocyte-derived macrophages (MDMs) and regulating the expression of anti-inflammatory cytokines in SLE...
December 1, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/29196382/relatedness-of-antibodies-to-peptides-containing-homocitrulline-or-citrulline-in-patients-with-rheumatoid-arthritis
#10
Patrick Lac, Maud Racapé, Lillian Barra, David A Bell, Ewa Cairns
OBJECTIVE: Antibodies that target citrullinated protein/peptide (ACPA) and homocitrullinated/carbamylated protein/peptide (AHCPA) are associated with rheumatoid arthritis (RA). The relationship between ACPA and AHCPA remains unclear. We examined the expression and cross-reactivity of these antibodies using citrulline- and homocitrulline-containing synthetic peptides, CitJED and HomoCitJED, respectively, which have equal numbers of citrulline or homocitrulline residues on the same peptide backbone...
December 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/29194108/epigenetics-of-inflammatory-arthritis
#11
Deepa Hammaker, Gary S Firestein
PURPOSE OF REVIEW: Aberrant epigenetic changes in DNA methylation, histone marks, and noncoding RNA expression regulate the pathogenesis of many rheumatic diseases. The present article will review the recent advances in the epigenetic profile of inflammatory arthritis and discuss diagnostic biomarkers and potential therapeutic targets. RECENT FINDINGS: Methylation signatures of fibroblast-like synoviocytes not only distinguish rheumatoid arthritis (RA) and osteoarthritis (OA), but also early RAs from late RAs or juvenile idiopathic arthritis...
November 30, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/29192160/a-novel-human-systemic-lupus-erythematosus-model-in-humanised-mice
#12
Merry Gunawan, Zhisheng Her, Min Liu, Sue Yee Tan, Xue Ying Chan, Wilson Wei Sheng Tan, Shubasree Dharmaraaja, Yong Fan, Chee Bing Ong, Eva Loh, Kenneth Tou En Chang, Thiam Chye Tan, Jerry Kok Yen Chan, Qingfeng Chen
Mouse models have contributed to the bulk of knowledge on Systemic Lupus Erythematosus (SLE). Nevertheless, substantial differences exist between human and mouse immune system. We aimed to establish and characterise a SLE model mediated by human immune system. Injection of pristane into immunodeficient mice reconstituted with human immune system (humanised mice) recapitulated key SLE features, including: production of human anti-nuclear autoantibodies, lupus nephritis, and pulmonary serositis. There was a reduction in the number of human lymphocytes in peripheral blood, resembling lymphopenia in SLE patients...
November 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29186640/-esomeprazol-induced-cutaneous-lupus-erythematosus
#13
Nina Gliem, Sigrid Maria Caroline Broekaert, Cornelia Sabine Seitz, Michael P Schön, Volker Ellenrieder
Proton pump inhibitors are among the most commonly used drugs worldwide. They are considered to be largely safe and cause little side-effects. We report a 69-year-old woman who suffered from erythematous plaques 2 months after initiating therapy with esomeprazole. The diagnosis of subacute cutaneous lupus erythematosus was based on the clinical picture together with characteristic histological features of a skin biopsy specimen and the detection of anti-Ro/SSA antibodies. In particular, the temporal relationship with the onset of proton pump inhibitor therapy led to the high-level suspicion of a drug-induced pathogenesis...
September 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/29178933/the-chronically-inflamed-central-nervous-system-provides-niches-for-long-lived-plasma-cells
#14
Karolin Pollok, Ronja Mothes, Carolin Ulbricht, Alina Liebheit, Jan David Gerken, Sylvia Uhlmann, Friedemann Paul, Raluca Niesner, Helena Radbruch, Anja Erika Hauser
Although oligoclonal bands in the cerebrospinal fluid have been a hallmark of multiple sclerosis diagnosis for over three decades, the role of antibody-secreting cells in multiple sclerosis remains unclear. T and B cells are critical for multiple sclerosis pathogenesis, but increasing evidence suggests that plasma cells also contribute, through secretion of autoantibodies. Long-lived plasma cells are known to drive various chronic inflammatory conditions as e.g. systemic lupus erythematosus, however, to what extent they are present in autoimmune central nervous system inflammation has not yet been investigated...
November 25, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/29177435/de-novo-mutations-implicate-novel-genes-in-systemic-lupus-erythematosus
#15
Venu Pullabhatla, Amy L Roberts, Myles J Lewis, Daniele Mauro, David L Morris, Christopher A Odhams, Philip Tombleson, Ulrika Liljedahl, Simon Vyse, Michael A Simpson, Sascha Sauer, Emanuele de Rinaldis, Ann-Christine Syvänen, Timothy J Vyse
The omnigenic model of complex disease stipulates that the majority of the heritability will be explained by the effects of common variation on genes in the periphery of core disease pathways. Rare variant associations, expected to explain far less of the heritability, may be enriched in core disease genes and thus will be instrumental in the understanding of complex disease pathogenesis and their potential therapeutic targets. Here, using complementary whole-exome sequencing, high-density imputation, and in vitro cellular assays, we identify candidate core genes in the pathogenesis of Systemic Lupus Erythematosus (SLE)...
November 21, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29166644/cylindromatosis-cyld-a-deubiquitinase-attenuates-inflammatory-signaling-pathways-by-activating-toll-like-receptor-3-in-human-mesangial-cells
#16
Tadaatsu Imaizumi, Ryo Hayakari, Shojiro Watanabe, Tomomi Aizawa, Tomoh Matsumiya, Hidemi Yoshida, Kazushi Tsuruga, Shogo Kawaguchi, Hiroshi Tanaka
BACKGROUND/AIMS: Cylindromatosis (CYLD), a deubiquitinase, negatively regulates nuclear factor-κB in various cells. However, its potential roles in glomerular inflammation remain unclear. Because the activation of the Toll-like receptor 3 (TLR3)/type I interferon (IFN) pathways plays a pivotal role in chronic kidney diseases (CKD), we examined the role of CYLD in the TLR3 signaling in cultured human mesangial cells (MCs). METHODS: We stimulated CYLD-silenced MCs with polyinosinic-polycytidylic acid (poly IC), a synthetic analogue of dsRNA, and studied representative TLR3/IFN-β pathways (i...
November 22, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29164585/expression-and-clinical-significance-of-mir-181a-and-mir-203-in-systemic-lupus-erythematosus-patients
#17
H-S Li, Y Ning, S-B Li, P-Y Shao, S-J Chen, Q Ye, X Heng
OBJECTIVE: MiR-181a plays a critical role in modulating T cell and B cell differentiation, as well as immune response. Its abnormal expression probably participates in the pathogenesis of systemic lupus erythematosus (SLE). MiR-203 is involved in regulating Toll-like receptor and inducing immune tolerance. Abnormal expression or function of miR-203 is related to multiple auto-immune diseases but its role in SLE remains unclear. This study, thus, investigated the serum level of miR-181a and miR-203, to analyze their roles in diagnosing and evaluating SLE...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29162406/novel-anti-suprabasin-antibodies-may-contribute-to-the-pathogenesis-of-neuropsychiatric-systemic-lupus-erythematosus
#18
Kunihiro Ichinose, Kaname Ohyama, Kaori Furukawa, Osamu Higuchi, Akihiro Mukaino, Katsuya Satoh, Shunya Nakane, Toshimasa Shimizu, Masataka Umeda, Shoichi Fukui, Ayako Nishino, Hideki Nakajima, Tomohiro Koga, Shin-Ya Kawashiri, Naoki Iwamoto, Mami Tamai, Hideki Nakamura, Tomoki Origuchi, Mari Yoshida, Naotaka Kuroda, Atsushi Kawakami
Neuropsychiatric systemic lupus erythematosus (NPSLE) is often difficult to diagnose and distinguish from other diseases, because no NPSLE-specific antibodies have been identified. We developed a novel proteomic strategy for identifying and profiling antigens in immune complexes in the cerebrospinal fluid (CSF), and applied this strategy to 26 NPSLE patients. As controls, we also included 25 SLE patients without neuropsychiatric manifestations (SLE), 15 with relapsing remitting multiple sclerosis (MS) and 10 with normal pressure hydrocephalus (NPH)...
November 18, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29155234/survivin-and-autoimmunity-the-ins-and-outs
#19
REVIEW
Hamidreza Ebrahimiyan, Saeed Aslani, Nima Rezaei, Ahmadreza Jamshidi, Mahdi Mahmoudi
Autoimmunity is a status that immune mechanisms react against self-structure. The immune mechanisms, including cellular and molecular elements have been developed to immune body against foreign invades. Multiple factors such as genetic and epigenetic background, hormonal status, microbiome, and other factors can cause launching the autoreactive responses, in which the immune tolerance breaks and immune mechanisms are against self-antigens. Apoptosis is one of the important mechanisms in maintaining the tolerance and eliminating the autoreactive lymphocyte clones...
November 16, 2017: Immunology Letters
https://www.readbyqxmd.com/read/29148401/vitamin-d-and-systemic-lupus-erythematous-a-review-of-immunological-and-clinical-aspects
#20
REVIEW
Francesca Dall'Ara, Maurizio Cutolo, Laura Andreoli, Angela Tincani, Sabrina Paolino
OBJECTIVES: To review the relationships between vitamin D status and systemic lupus erythematosus (SLE) concerning immunological, clinical aspects and possible effects of supplementation in disease modulation. METHODS: The literature was reviewed up to January 2017 for studies regarding the epidemiology, pathogenesis, immunological aspects, clinical implications and supplementation strategies. The focus was mainly on studies with implications on every day clinical practice...
November 14, 2017: Clinical and Experimental Rheumatology
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