Abstracts tagged "autoantibodies"

Abstract Number: 163 • 2020 Pediatric Rheumatology Symposium
Anti-Dense Fine Speckled (DFS) Autoantibodies in Autoinflammatory Vasculopathies
Asa Laestadius¹, May Choi ¹, Marvin Fritzler ¹, Aurore Fifi-Mah ², Susanne Benseler ³ and Joao Dantas ¹, ¹University of Calgary, Calgary, Canada, ²Calgary, Canada, ³Univeristy of Calgary, Calagry, Canada
Background/Purpose: Autoantibodies to dense fine speckles 70 (DFS70) is now recognized to be more common among apparently healthy individuals compared to patients with ANA-related rheumatic…
Abstract Number: 020 • 2020 Pediatric Rheumatology Symposium
Murine Roseolovirus Induces Autoimmune Disease and Development of Autoantibodies
Tarin Bigley¹ and Wayne Yokoyama ², ¹Washington University in St. Louis, Saint Louis, Missouri, ²Washington University in St. Louis, St Louis, Missouri
Background/Purpose: Murine roseolovirus (MRV) is a recently sequenced beta-herpesvirus that is a natural murine pathogen and is genetically highly related to HHV6 and HHV7. The…
Abstract Number: 054 • 2020 Pediatric Rheumatology Symposium
Clinical and Laboratory Characteristics in Juvenile-onset Systemic Lupus Erythematosus Across Age Groups
Joseph Massias ¹, Eve Smith ¹, Michael Beresford ¹ and Christian Hedrich¹, ¹University of Liverpool, Liverpool, United Kingdom
Background/Purpose: Systemic lupus erythematous (SLE) is a systemic autoimmune/inflammatory condition. Up to 20% of patients develop symptoms before their 18th birthday and are diagnosed with…
Abstract Number: 1774 • 2019 ACR/ARP Annual Meeting
Potential Involvement of OX40 Expressing Tfh Cells on Regulation of Autoantibody Sialylation in Experimental and Rheumatoid Arthritis
Izumi Kurata¹, Isao Matsumoto ¹, Natsuko Mikami ¹, Ayako Ohyama ¹, Atsumu Osada ¹, Yuya Kondo ¹, Hiroto Tsuboi ¹ and Takayuki Sumida ¹, ¹Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
Background/Purpose: Recently, IL-23-Th17 cells axis and hyposialylation of antibodies were proved to be linked to experimental and rheumatoid arthritis. However it remains uncertain how Tfh,…
Abstract Number: 47 • 2019 ACR/ARP Annual Meeting
Autoreactivity to Acetylated Histones Defines a Subset of RA Patients and Is Associated with Acetyl – Citrulline Anti-Modified Protein Autoantibody (AMPA) Cross-Reactivity
Peter Sahlström ¹, Lisa Liljefors ¹, Vijay Joshua ², Natalia Sherina ¹, Radha Thyagarajan ¹, Lena Israelsson ², Ragnhild Stålesen ², Monika Hansson ³, Khaled Amara ², Ulf Reimer ⁴, Leonid Padyukov ¹, Elisabet Svenungsson ⁵, Karin Lundberg ¹, Anca Catrina ³, Lars Klareskog ³, Vivianne Malmström ² and Caroline Grönwall², ¹Karolinska Institutet, Stockholm, Sweden, ²Rheumatology Unit, Department of Medicine, Karolinska University Hospital and Institutet, Stockholm, Sweden., Stockholm, Sweden, ³Rheumatology unit Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden, Stockholm, Sweden, ⁴JPT Peptide Technologies, Berlin, Germany, ⁵Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
Background/Purpose: Serum anti-citrullinated protein autoantibodies (ACPA) in rheumatoid arthritis (RA) display reactivity to a variety of cit-autoantigens. Studies of human ACPA mAbs have revealed that…
Abstract Number: 1868 • 2019 ACR/ARP Annual Meeting
Clinical Correlations of Autoantibodies Against Heat Shock Cognate 71 kDa Protein in Patients with Juvenile Dermatomyositis
Rie Karasawa¹, James N. Jarvis ², Toshiko Sato ¹, Megumi Tanaka ¹, Mark Hicar ², Kazuo Yudoh ¹, Terrance O’Hanlon ³, Payam Noroozi-Farhadi ³ and Lisa G. Rider ⁴, ¹Institute of Medical Science, St. Marianna University School of Medicine, Kawasaki, Japan, ²University at Buffalo, Jacobs School of Medicine and Biomedical Sciences, Buffalo, NY, ³NIEHS, NIH, Bethesda, MD, ⁴Environmental Autoimmunity Group, Clinical Research Branch, NIEHS, NIH, Bethesda, MD
Background/Purpose: Juvenile dermatomyositis (JDM) is an inflammatory myopathy characterized by prominent vascular and perivascular inflammation in affected skeletal muscles. The mechanisms of vessel injury in…
Abstract Number: 80 • 2019 ACR/ARP Annual Meeting
The Role of Adopter Protein SH3BP2 in a Murine Systemic Lupus Erythematosus Model
Kyoko Kawahara¹, Tomoyuki Mukai ², Akiko Nagasu ¹, Masanori Iseki ³, Hajime Nagasu ⁴, Shoko Tshuji ¹, Takahiko Akagi ¹, Yasuyoshi Ueki ⁵ and Yoshitaka Morita ¹, ¹Department of Rheumatology, Kawasaki medical School, Kurashiki, Okayama, Japan, ²Department of Rheumatology, Kawasaki medical School, Kurashiki, Okayama, Okayama, Japan, ³Department of Immunology and Molecular Genetics, Kawasaki Medical School, Kurashiki, Okayama, Japan, ⁴Department of Nephrology and Hypertension, Kawasaki medical School, Kurashiki, Okayama, Japan, ⁵Department of Biomedical Sciences and Comprehensive Care Indiana University School of Dentistry, Indianapolis, IN
Background/Purpose: An adaptor protein SH3BP2 (Src homology 3 domain-binding protein 2) is widely expressed in immune cells and controls intracellular signaling pathways, such as Syk,…
Abstract Number: 1900 • 2019 ACR/ARP Annual Meeting
Assessing Commercial Titers of anti-Ro60 and Ro52 Antibodies to Risk Stratify Surveillance of Anti-Ro/SSA Antibody Positive Pregnancies
Kimberly Robins ¹, Rohit Bhan¹, Catherine Trad ¹, Rebecca Cohen ¹, Miao Chang ¹, Benjamin Wainwright ¹, Mala Masson ¹, Shilpi Mehta-Lee ¹, Peter Izmirly ¹, Robert Clancy ¹, Bettina Cuneo ² and Jill Buyon ¹, ¹NYU School of Medicine, New York, ²Children's Hospital Colorado, Aurora
Background/Purpose: Pregnancy counseling of all anti-Ro positive women includes advice regarding the development of congenital heart block (CHB), albeit the risk is only 2% for…
Abstract Number: 126 • 2019 ACR/ARP Annual Meeting
Antibodies Targeting Mitochondrial Antigens Are Associated with Reduced Thrombotic Events in APS
Yann Becker¹, Anne-Sophie Julien ², Alexandra Godbout ³, Éric Boilard ³ and Paul Fortin ⁴, ¹Département de microbiologie et immunologie, Centre de recherche du CHU de Québec - Université Laval, Canada, Quebec, QC, Canada, ²Service de consultation statistique (SCS). Département de mathématiques et de statistique, Québec, QC, Canada, ³Axe maladies infectieuses et inflammatoires, Centre de recherche du CHU de Québec – Université Laval, Québec, Qc, Canada, Québec, QC, Canada, ⁴Division de Rhumatologie, Département de Médecine, CHU de Québec – Université Laval, Axe maladies infectieuses et inflammatoires, Centre de recherche du CHU de Québec – Université Laval, Canada, Quebec, QC, Canada
Background/Purpose: Mitochondria are intracellular organelles involved in many biological pathways such as energy supply by oxidative phosphorylation and apoptosis. Mitochondria are considered as derived from…
Abstract Number: 2003 • 2019 ACR/ARP Annual Meeting
Anti-Polygalacturonic Acid Antibody (PGA-Ab) Induced Bone Destruction in Rheumatoid Arthritis by Promoting Osteoclastogenesis via Integrin Beta 5
JIAWEI XIE¹ and HUI DAI ¹, ¹Peking University, Beijing, China (People's Republic)
Background/Purpose: Anti-polygalacturonic acid antibody (PGA-Ab) is a new rheumatoid arthritis (RA)-related autoantibody first identified by our group. The sensitivity and specificity of PGA-Ab is even…
Abstract Number: 402 • 2019 ACR/ARP Annual Meeting
Chronic Disease Course and IVIg-dependance in Long-term Follow-up of Anti-HMGCR Immune-mediated Necrotizing Myopathy
Océane Landon-Cardinal¹, Kuberaka Mariampillai ², Céline Anquetil ³, Aude Rigolet ², Baptiste Hervier ⁴, Nicolas Champtiaux ², Olivier Benveniste ³ and Yves Allenbach ³, ¹Centre Hospitalier de l'Université de Montréal, Montréal, Canada, ²Pitié-Salpêtrière University Hospital, Paris, France, ³Sorbonne Université, Paris, France, ⁴Hopital Pitie-Salpetriere, Paris, France
Background/Purpose: Anti-HMGCR antibodies have been associated with a severe form of immune-mediated necrotizing myopathy (IMNM) with a poor muscle strength recovery and early muscle damage.…
Abstract Number: 2020 • 2019 ACR/ARP Annual Meeting
Metabolic Changes Induced by Anti-Malondialdehyde Antibodies Promote Osteoclast Development
Koji Sakurabas¹, Akilan Krishnamurthy ², Cheng Xu ³, Khaled Amara ⁴, Vivianne Malmström ⁴, Sergiu-Bogdan Catrina ³, Caroline Grönwall ⁴, Bence Rethi ⁵ and Anca Catrina ⁶, ¹Rheumatology unit, Department of Medicine, Karolinska University Hospital and Karolinska Institutet, Solna, stockholm, Sweden, ²Rheumatology unit, Department of Medicine, Karolinska University Hospital and Karolinska Institutet, Solna, Stockholm, ³Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden, ⁴Rheumatology Unit, Department of Medicine, Karolinska University Hospital and Institutet, Stockholm, Sweden., Stockholm, Sweden, ⁵Rheumatology unit Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden, Stockholm, ⁶Rheumatology unit Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden, Stockholm, Sweden
Background/Purpose: Malondialdehyde (MDA) is highly reactive compound produced by lipid-peroxidation in situations associated with oxidative stress. MDA can irreversibly modify proteins (e.g. lysine, arginine and histidine…
Abstract Number: 455 • 2019 ACR/ARP Annual Meeting
Anti-Protein-Arginine Deiminase (PAD) 4 IgA Are Present in the Sera of Rheumatoid Arthritis Patients and Are Associated with Joint Erosion and Biological Treatment Use
Laura Martinez-Prat¹, Victor Manuel Martínez Taboada ², Marcos Lopez-Hoyos ³ and Michael Mahler ⁴, ¹Inova Diagnostics, Francisco de Vitoria University, San Diego, CA, ²Hospital Universitario Marqués de Valdecilla, Santander, Spain, ³Hospital Universitario Marqués de Valdecilla-IDIVAL, Santander, Cantabria, Spain, ⁴Inova Diagnostics, San Diego, CA
Background/Purpose: Over the past years, novel biomarkers have been described in rheumatoid arthritis (RA) patients, including autoantibodies to the protein-arginine deiminase (PAD) enzymes. Anti-PAD4 IgG…
Abstract Number: 2039 • 2019 ACR/ARP Annual Meeting
High Prevalence and Disease Correlation of Autoantibodies Against p40 Encoded by Long Interspersed Nuclear Elements (LINE-1) in SLE
Kennedy Ukadike¹, Victoria Carter ¹, John LaCava ², Martin Taylor ³, Anders Bengtsson ⁴, Christian Lood ¹ and Tomas Mustelin ¹, ¹University of Washington, Seattle, WA, ²The Rockefeller University, New York, NY, ³Massachusetts General Hospital, Boston, MA, ⁴Lund University, Lund, Sweden
Background/Purpose: The long interspersed nuclear element 1 (LINE-1) has two major open reading frames (ORFs): ORF1 encodes the RNA-binding p40 protein, and ORF2 encodes the…
Abstract Number: 646 • 2019 ACR/ARP Annual Meeting
A Meta-Analysis of Anti-Ribosomal P Autoantibodies in Systemic Lupus Erythematosus: A Misunderstood Autoantibody
May Choi¹, Rachael Brown ², Katherine Buhler ³, Michael Mahler ⁴ and Marvin Fritzler ¹, ¹Cumming School of Medicine, University of Calgary, Calgary, AB, Canada, ²University of Victoria, Victoria, Canada, ³University of Calgary, Calgary, Canada, ⁴Inova Diagnostics, San Diego, CA
Background/Purpose: Anti-ribosomal P (Rib-P) antibodies have become known as a highly specific biomarker for the diagnosis of SLE and potentially a biomarker for neuropsychiatric SLE…

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