Abstracts tagged "immunoglobulin (IG) and rheumatoid arthritis (RA)"

Abstract Number: 8 • 2018 ACR/ARHP Annual Meeting
Repertoire Studies in Rheumatoid Arthritis Reveal B-Cell Distortions and Baseline Shifts in Unmutated IgG
Yan Wang¹, Katy A. Lloyd², Sunithi Gunasekera³, Camilla Eriksson³, Daniel Ramsköld², Karin Lundberg⁴, Per-Johan Jakobsson¹, Ulf Göransson³, Vivianne Malmström¹ and Caroline Grönwall⁵, ¹Rheumatology Unit, Dept. of Medicine, Karolinska Institutet, Stockholm, Sweden, ²Rheumatology Unit, Dept of Medicine, Karolinska Institutet, Stockholm, Sweden, ³Division of Pharmacognosy, Dept. of Medicinal Chemistry, Uppsala University, Uppsala, Sweden, ⁴Rheumatology Unit, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden, ⁵Dep. of Medicine, Rheumatology Unit, Karolinska Institutet, Stockholm, Sweden
Background/Purpose: The immunological hallmark of rheumatoid arthritis (RA) is autoreactivity to citrullinated proteins and rheumatoid factor activity. Hence, the adaptive immune system and B cells…
Abstract Number: 19 • 2018 ACR/ARHP Annual Meeting
Citrulline-Multispecific B Cell Receptor Clades in Rheumatoid Arthritis
Philip J. Titcombe^1,2, Natalie Sippl³, Monika Hansson⁴, Lena Israelsson³, Khaled Amara³, Timothy B. Niewold⁵, Lars Klareskog², Vivianne Malmström² and Daniel L. Mueller⁶, ¹The Center for Immunology, Dept. of Medicine, University of Minnesota Medical School, Minneapolis, MN, ²Rheumatology Unit, Dept. of Medicine, Karolinska Institutet, Stockholm, Sweden, ³Rheumatology Unit, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden, ⁴Medicine, Rheumatology Unit, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden, ⁵Colton Center for Autoimmunity, New York University, New York, NY, ⁶Medicine/Rheumatic and Autoimmune Diseases, University of Minnesota Medical School, Minneapolis, MN
Background/Purpose: Anti-citrullinated protein antibodies (ACPA) have proven highly useful as biomarkers in rheumatoid arthritis (RA) and appear to be important to disease pathogenesis. Nevertheless, the…
Abstract Number: 1484 • 2018 ACR/ARHP Annual Meeting
Value of Anti-RA33 Isotypes in an European Rheumatoid Arthritis Patient Cohort
Maresa Grundhuber¹, Daniela Sieghart², Günter Steiner², Maryam Poorafshar³ and Sascha Swiniarski¹, ¹Thermo Fisher Scientific, Freiburg, Germany, Freiburg, Germany, ²Division of Rheumatology, Department of Internal Medicine III, Medical University Vienna, Austria, Vienna, Austria, ³Thermo Fisher Scientific, Uppsala, Sweden, Uppsala, Sweden
Background/Purpose: Early diagnosis of rheumatoid arthritis (RA) leading to effective treatment is essential to improve prognosis and to prevent disease progression. Anti-cyclic citrullinated peptide (CCP)…
Abstract Number: 834 • 2017 ACR/ARHP Annual Meeting
Citrulline-Polyspecific B Cell Antigen Receptors Arising from Somatic Hypermutation within Clades Demonstrate Pathogenicity in Rheumatoid Arthritis
Philip J. Titcombe^1,2, Gustaf Wigerblad³, Natalie Sippl³, Na Zhang¹, Anna K. Shmagel⁴, Peter Sahlström⁵, Yue Jack Zhang¹, Laura Barsness Motschenbacher¹, Yogita Ghodke-Puranik⁶, Monika Hansson⁷, Lena Israelsson⁵, Timothy B. Niewold⁸, Lars Klareskog⁹, Camilla Svensson¹⁰, Khaled Amara⁷, Vivianne Malmström¹¹ and Daniel L. Mueller¹, ¹Medicine/Rheumatic and Autoimmune Diseases, University of Minnesota Medical School, Minneapolis, MN, ²Rheumatology Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden, ³Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden, ⁴Rheumatic & Autoimmune Diseases, University of Minnesota Medical School, Minneapolis, MN, ⁵Dept. of Medicine, Rheumatology Unit, Karolinska Institutet, Stockholm, Sweden, ⁶Colton Center for Autoimmunity, New York University, New York, NY, ⁷Department of Medicine, Rheumatology Unit, Karolinska Institutet, Stockholm, Sweden, ⁸Rheumatology and Immunology, Mayo Clinic, Rochester, MN, ⁹Rheumatology unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden, ¹⁰Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden, ¹¹Rheumatology Unit, Karolinska Institutet, Stockholm, Sweden
Background/Purpose: Citrulline–modified proteins arising from the post-translational modification of arginine residues are recognized as primary rheumatoid arthritis (RA) autoantigen targets based on the strong association…
Abstract Number: 477 • 2017 ACR/ARHP Annual Meeting
Monoclonal ACPA-IgG Feature Extensive Fab Glycosylation
Katy A. Lloyd¹, Johanna Steen¹, Philip J. Titcombe^2,3, Khaled Amara⁴, Diana Zhou¹, Lena Israelsson⁵, Susanna L. Lundström⁶, Daniel L. Mueller³, Lars Klareskog¹, Vivianne Malmström¹ and Caroline Grönwall⁷, ¹Dept. of Medicine, Rheumatology Unit, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, ²Dept. of Medicine, Rheumatology Unit, Karolinska Institutet, Karolinska University Hospital, Sweden, Sweden, ³Dept. of Medicine, University of Minnesota Medical School, Minneapolis, MN, ⁴Department of Medicine, Rheumatology Unit, Karolinska Institutet, Stockholm, Sweden, ⁵Dept. of Medicine, Rheumatology Unit, Karolinska Institutet, Stockholm, Sweden, ⁶Dept. of Medical Biochemistry and Biophysics, Division of Physiological Chemistry, Karolinska Institutet, Stockholm, Sweden, ⁷Dep. of Medicine, Rheumatology Unit, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
Background/Purpose: Fab-glycosylation is found in ~15-25% serum IgG and while its exact consequence remains unknown, it may alter IgG functionality. Recent data revealed elevated Fab-glycosylation…
Abstract Number: 643 • 2016 ACR/ARHP Annual Meeting
Exposure-Response Analyses of Efficacy of ABT-122, a Dual-Variable Domain Immunoglobulin (DVD-Ig™) Targeting TNF-α and IL-17A, Compared with Adalimumab in Subjects with Rheumatoid Arthritis and Background MTX
Amit Khatri¹, Ben Klunder², Mukul Minocha³, Heikki T. Mansikka¹ and Ahmed A. Othman¹, ¹AbbVie Inc., North Chicago, IL, ²AbbVie, Ludwigshafen am Rhein, Germany, ³Clinical Pharmacology and Pharmacometrics, AbbVie, North Chicago, IL
Background/Purpose: ABT-122 is a novel dual-variable domain immunoglobulin (DVD-IgTM), which specifically neutralizes both TNF alpha (TNFα) and interleukin-17A (IL-17). Both cytokines are expressed at increased…
Abstract Number: 868 • 2013 ACR/ARHP Annual Meeting
Serum Immunoglobulin Free Light Chains and Rheumatoid Arthritis: A Population-Based Study
John M. Davis III¹, S. Vincent Rajkumar², Cynthia S. Crowson³, Xiaoli Deng⁴, Angela Dispenzieri², Dirk R. Larson⁵, Terry M. Therneau³, Eric L. Matteson¹, Robert A. Kyle², Jerry Katzmann⁶ and Sherine E. Gabriel⁷, ¹Rheumatology, Mayo Clinic, Rochester, MN, ²Hematology, Mayo Clinic, Rochester, MN, ³Department of Health Sciences Research, Mayo Clinic, Rochester, MN, ⁴Rheumatology and Immunology, Peking University Third Hospital, Beijing, China, ⁵Health Sciences Research, Mayo Clinic, Rochester, MN, ⁶Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, ⁷Health Sciences Research & Div of Rheumatology, Mayo Clinic, Rochester, MN
Background/Purpose: Serum immunoglobulin free light chains (FLCs) represent biomarkers of B-cell activation and have been associated with rheumatoid arthritis (RA) as well as all-cause mortality…
Abstract Number: 1212 • 2012 ACR/ARHP Annual Meeting
Elevated Fecal Secretory Immunoglobulin A, Anti-Cyclic Citrullinated Peptide Antibodies, and Cytokine Levels in Rheumatoid Arthritis Patients
Sam Dalvi¹, Jose U. Scher*¹, Mukundan Attur², Jyoti Patel³ and Steven B. Abramson⁴, ¹Rheumatology, NYU Hospital for Joint Diseases, New York, NY, ²Division of Rheumatology, Department of Medicine, NYU Hospital for Joint Diseases, New York, NY, ³Rheumatology, NYU Langone Medical Center, New York, NY, ⁴Dept of Rheumatology/Medicine, NYU Langone Medical Center, New York, NY
Background/Purpose: Rheumatoid arthritis (RA) is a complex autoimmune disease with genetic and environmental contributions. There has been increasing interest in the microbiome and its potential…

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