Abstracts Archive - Page 751 of 2425 - ACR Meeting Abstracts

Abstract Number: 1445 • ACR Convergence 2020
Citrulline Reactive B Cells Are Present in the Lungs of Risk RA and Early Untreated RA
Vijay Joshua¹, Malena Loberg-Haarhaus², Akilan Krishnamurthy¹, Meng Sun³, Christina Gerstner⁴, Aase Hensvold⁵, Khaled Amara¹, Lena Israelsson¹, Ragnhild Stålesen⁶, Bence Rethi⁷, Magnus Sköld⁷, Johan Grunewald¹, Heidi Wähämaa¹, Caroline Grönwall¹, Vivianne Malmström⁸ and Anca Catrina⁵, ¹Karolinska Institutet, Stockholm, Sweden, ²Rheumatology clinic, Karolinska University Hospital, Stockholm, Sweden, Stockholm, Stockholms Lan, Sweden, ³Karolinska University Hospital and Karolinska Insitutet, Stockholm, Sweden, ⁴Division of Rheumatology, Department of Medicine,Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden, ⁵Rheumatology Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden, Stockholm, Stockholms Lan, Sweden, ⁶Karolinska Institute, Stockholm, Sweden, ⁷Karolinska Institutet, Stockholm, ⁸Karolinska Institutet, Stockholm, Stockholms Lan, Sweden
Background/Purpose: Structural changes, increased tissue citrullination, signs of local inflammation and anti-citrullinated protein autoantibodies (ACPA) are present in the pulmonary compartment of early untreated seropositive…
Abstract Number: 1446 • ACR Convergence 2020
Pregnancy Outcomes in Patients with Interstitial Lung Disease
Aardra Rajendran¹, Stephanie Giattino², Amanda Eudy³, Aparna Swaminathan⁴ and Megan Clowse⁵, ¹Duke University, Lewisville, NC, ²Duke University, Media, PA, ³Duke University, Durham, NC, ⁴Duke University, Durham, ⁵Duke University, Chapel Hill, NC
Background/Purpose: Patients with interstitial lung disease (ILD) are often recommended to avoid conception or terminate pregnancy despite limited data on pregnancy outcomes and complications. Studies…
Abstract Number: 1447 • ACR Convergence 2020
Vitamin D Deficiency Enhances Antiphospholipid Antibody-Mediated Thrombosis in a Passive Immunization Mouse Model
Rohan Willis¹, Karen Roye-Green², Zurina Romay-Penabad¹, Elizabeth Papalardo¹, Alvaro Schleh³, Vijaya Murthy⁴, Monica Smikle² and Emilio Gonzalez¹, ¹University of Texas Medical Branch, Galveston, TX, ²University of the West Indies, Kingston, Jamaica, ³Antiphospholipid Standardization Laboratory, GALVESTON, TX, ⁴University of Texas Medical Branch, League City, TX
Background/Purpose: Abnormal vitamin D levels occur frequently in antiphospholipid (APS) patients and are correlated with thrombosis. It remains unclear however if vitamin D deficiency observed…
Abstract Number: 1448 • ACR Convergence 2020
Single-cell RNA Sequencing of Livedo Reticularis Skin Reveals Endothelial Pathology in Antiphospholipid Syndrome
Hui Shi¹, Allison Billi¹, Rachael Wasikowski¹, Kelsey Gockman¹, Alex Tsoi¹, Johann Gudjonsson² and Jason Knight³, ¹University of Michigan, Ann Arbor, ²University of Michigan, Ann ArborUniversity of Michigan, ³Division of Rheumatology, University of Michigan, Ann Arbor, MI
Background/Purpose: Antiphospholipid syndrome (APS) is a thromboinflammatory disease that can present with a variety of clinical phenotypes. Livedo reticularis is the most common skin manifestation…
Abstract Number: 1449 • ACR Convergence 2020
Altered Splicing in Leukocytes from Patients with Antiphospholipid Syndrome, Systemic Lupus Erythematosus and Antiphospholipid Syndrome with Lupus: Clinical Involvement
Alejandra Maria Patiño-Trives¹, Alejandro Ibáñez-Costa², Carlos Pérez-Sánchez¹, Laura Pérez-Sanchez³, Maria Luque-Tevar¹, Iván Arias de la Rosa¹, María-Carmen Abalos-Aguilera¹, Desirée Ruiz-Vilchez⁴, Pedro Segui⁵, Mario Espinosa⁵, Nuria Barbarroja¹, Eduardo Collantes⁴, Justo P. Castaño⁵, Raul M Luque⁵, María de los ángeles Aguirre-Zamorano⁵ and Chary Lopez-Pedrera¹, ¹Rheumatology Department, Reina Sofia University Hospital/ Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/ University of Cordoba, Cordoba, Spain, Cordoba, Spain, ²IMIBIC/University of Cordoba/Reina Sofia Hospital, Córdoba, ³Hospital Universitario Reina Sofía, Córdoba, Spain, ⁴Rheumatology Department, Reina Sofia University Hospital/ Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/ University of Cordoba, Cordoba, Spain, Córdoba, Spain, ⁵IMIBIC/University of Cordoba/Reina Sofia Hospital, Cordoba
Background/Purpose: To identify shared and differential changes in the splicing machinery of immune cells from antiphospholipid syndrome (APS), systemic lupus erythematosus (SLE) and antiphospholipid syndrome…
Abstract Number: 1450 • ACR Convergence 2020
Integrative Analysis of DNA Methylation and Gene Expression in Monocytes from Primary Antiphospholipid Syndrome Patients Identifies a Gene Expression Signature Associated with Their Atherothrombotic Phenotype
Carlos Pérez-Sánchez¹, M Angeles Aguirre², Alejandra Maria Patiño-Trives¹, Laura Pérez-Sanchez³, Maria Luque-Tevar¹, Iván Arias de la Rosa¹, María-Carmen Abalos-Aguilera¹, Pedro Segui⁴, Javier Rodriguez-Ubreva⁵, Esteban Ballestar⁵, Nuria Barbarroja¹, Eduardo Collantes-Estévez² and Chary Lopez-Pedrera¹, ¹Rheumatology Department, Reina Sofia University Hospital/ Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/ University of Cordoba, Cordoba, Spain, Cordoba, Spain, ²Rheumatology Department, Reina Sofia University Hospital/ Maimonides Institute for Research in Biomedicine of Cordoba (IMIBIC)/ University of Cordoba, Cordoba, Spain, Córdoba, Spain, ³Hospital Universitario Reina Sofía, Córdoba, Spain, ⁴IMIBIC/University of Cordoba/Reina Sofia Hospital, Cordoba, ⁵Josep Carreras Institute (IJC), Badalona, Spain
Background/Purpose: 1. To develop integrated analyses of the genome-wide DNA methylation and gene expression profiles in monocytes from APS patients and assess their involvement in…
Abstract Number: 1451 • ACR Convergence 2020
Longitudinal Assessment of Anti-beta 2 Glycoprotein in SLE
Michelle Petri¹, Laurence Magder² and Daniel Goldman¹, ¹Johns Hopkins University School of Medicine, Timonium, MD, ²University of Maryland, Baltimore, Baltimore, MD
Background/Purpose: Although anti-beta2 glycoprotein is one of the three antiphospholipid antibodies recognized in the Sydney APS classification criteria, it is one of the least studied. …
Abstract Number: 1452 • ACR Convergence 2020
Transcriptomic Meta-analysis Reveals a Core Transcriptional Program in Murine B Cell Anergy and Implicates Immunometabolic Regulation as a Central Pathway in Maintaining Non-responsiveness of Autoreactive B-cells in Both Mouse and Man
Isaac Harley¹, Bergren Crute², Andrew Getahun² and John Cambier³, ¹University of Colorado Anschutz Medical Campus, Aurora, CO, ²University of Colorado – Anschutz Medical Campus, Aurora, ³Univ, Aurora
Background/Purpose: The mechanisms self-tolerance loss that lead to autoantibody-mediated autoimmune disease remain underdefined. The rapid reversibility of peripheral B-cell tolerance in murine models suggests that…
Abstract Number: 1453 • ACR Convergence 2020
A First in Class Therapeutic Nanoparticle for Specific Targeting of Anti-citrullinated Protein Antibody Ameliorates Serum Transfer and Collagen Induced Arthritis
Sangita Khatri¹, Jonas Hansen¹, Mads Clausen¹, Tue Wenzel Kragstrup², Shu-Chen Hung³, Elizabeth Mellins⁴ and Kira Astakhova¹, ¹Technical University of Denmark, Copenhagen, Denmark, ²Aarhus University, Aarhus, Denmark, ³Amgen, Thousand Oaks, ⁴Stanford University, Stanford, CA
Background/Purpose: Rheumatoid arthritis (RA) is an immune mediated inflammatory disease with autoimmune features, including antibodies to citrullinated proteins and peptides (ACPAs). Several in vitro studies…
Abstract Number: 1454 • ACR Convergence 2020
B Cell-specific TLR7 Regulates Lupus in TLR9 Deficient Mice
Haylee Baxendell¹, Minjung Kim², Jeremy Tilstra² and Mark Shlomchik², ¹University of Pittsburgh, Cranberry Twp, PA, ²University of Pittsburgh, Pittsburgh, PA
Background/Purpose: Systemic lupus erythematosus (SLE) is an autoimmune disease that results in significant morbidity and mortality. In SLE, endosomal TLR7 and TLR9 are known to…
Abstract Number: 1455 • ACR Convergence 2020
Functional Characterization of PLCG2 Mutations Found in Subjects with Autoinflammation and PLCG2-Associated Antibody Deficiency and Immune Dysregulation (APLAID) Reveals Both Hypermorphic and Hypomorphic Mutants
Kathleen Baysac¹, Charles Fisher², Hiroto Nakano², Joshua Milner³ and Michael Ombrello⁴, ¹NIAMS, NIH, Bethesda, MD, ²NIAMS, NIH, Bethesda, ³Division of Allergy, Immunology and Rheumatology Columbia University Medical Center, New York, NY, ⁴Translational Genetics and Genomics Unit, NIAMS, NIH, Bethesda, MD
Background/Purpose: PLCG2-associated antibody deficiency and immune dysregulation (PLAID) and autoinflammatory PLAID (APLAID) are autosomal dominant diseases caused by mutations of PLCG2. APLAID is clinically characterized by episodic…
Abstract Number: 1456 • ACR Convergence 2020
Exploring the RA Bone Marrow Niche by Single-cell Technology to Identify Long Lived ACPA+ Plasma Cells
Khaled Amara¹, Aase Hensvold², Radha Thyagarajan¹, Lena Israelsson¹, Johanna Steen¹, Heidi Wähämaa¹, Monika Hansson¹, Marianne Engström¹, Annika van Vollenhoven¹, Anca Catrina², Vivianne Malmström³ and Caroline Grönwall¹, ¹Karolinska Institutet, Stockholm, Sweden, ²Rheumatology Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden, Stockholm, Stockholms Lan, Sweden, ³Karolinska Institutet, Stockholm, Stockholms Lan, Sweden
Background/Purpose: Autoantibodies is a hallmark of rheumatoid arthritis, placing the adaptive immune system and B-cells centrally in the pathogenesis. The anti-citrullinated autoantibodies (ACPA) detected in…
Abstract Number: 1457 • ACR Convergence 2020
Two Minute Walking Distance and Other Timed Function Tests Are Superior to MMT-8 in Assessing Outcomes in Polymyositis and Dermatomyositis
Sai kumar Dunga¹, Chengappa G Kavadichanda² and VS Negi², ¹Jawaharlal institute of postgraduate medical education and research, puducherry, India, ²Jawaharlal institute of postgraduate medical education and research, Puducherry, Puducherry, India
Background/Purpose: Inflammatory myositis are heterogenous group of diseases affecting skeletal muscles and multiple different organs. Assessing improvement in disease activity is done by Manual muscle…
Abstract Number: 1458 • ACR Convergence 2020
Slower Current Walking Speed Is Associated with Progression in Radiographic Knee Osteoarthritis: The Johnston County Osteoarthritis Project
Lindsey Duca¹, Liubov Arbeeva², Yvonne Golightly³, Louise Murphy⁴, Charles Helmick⁴ and Kamil Barbour⁵, ¹Centers for Disease Control and Prevention, Chamblee, GA, ²University of North Carolina at Chapel Hill Thurston Arthritis Research Center, Chapel Hill, NC, ³University of North Carolina at Chapel Hill Dept of Epidemiology, Chapel Hill, NC, ⁴Centers for Disease Control and Prevention, Atlanta, GA, ⁵CDC, Atlanta, GA
Background/Purpose: Poorer physical functioning as a single baseline measurement has been associated with increased risk of radiographic knee osteoarthritis (rKOA) progression, but it is unknown…
Abstract Number: 1459 • ACR Convergence 2020
The Association of Frequent Knee Bending with Trajectories of Pain and Physical Function over 8 Years in Knee Osteoarthritis
Jason Jakiela¹, Dana Voinier¹, Thomas Bye¹, Maria Tukis¹, Kiely Konyak¹, Dylan Orloff¹ and Daniel White¹, ¹University of Delaware, Newark, DE
Background/Purpose: Frequent bending increases loading at the knee and is a risk factor for worsening knee pain associated with knee osteoarthritis (OA). Knee bending is…

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