Abstracts tagged "Bioinformatics"

Abstract Number: 1183 • ACR Convergence 2022
Functionally Distinct Fibroblast Populations in Systemic Sclerosis Skin Revealed by Explant Tissue Characterization and Single-cell RNAseq
Kristina Clark¹, Alice Cole², Shiwen Xu¹, Voon Ong³, Christopher Buckley⁴ and Chris Denton¹, ¹University College London, London, United Kingdom, ²Royal Free Hospital, London, United Kingdom, ³UCL Medical School Royal Free Campus, London, United Kingdom, ⁴University of Oxford, Oxford, United Kingdom
Background/Purpose: Traditional studies of skin fibroblasts in SSc focus on the early "migratory" fibroblast population derived from explant culture of skin biopsies. Single-cell RNAseq has…
Abstract Number: 2179 • ACR Convergence 2022
Spatial and Single-Cell Transcriptomics Identify Alcam+ Macrophage / CD6+ T-Cell Interactions and Accumulation of IgG2b+ Class-Switched Plasma Cells in Marco+ Medullary Sinuses of Joint-Draining Popliteal Lymph Nodes in TNF-Tg Mice with Advanced Arthritis
H. Mark Kenney¹, Yue Peng², Kiana Chen², Javier Rangel-Moreno², Elizabeth Pritchett², Jeffrey Fox², Benjamin Korman³, Jennifer Anolik², Lianping Xing⁴, Christopher Ritchlin⁵, Edward Schwarz² and Chia-Lung Wu², ¹University of Rochester Medical Center, Henrietta, NY, ²University of Rochester Medical Center, Rochester, NY, ³University of Rochester, Rochester, NY, ⁴University of Rochester Medical Center, Webster, NY, ⁵Allergy, Immunology and Rheumatology Division, University of Rochester Medical School, Canandaigua, NY
Background/Purpose: Severe inflammatory-erosive arthritis in tumor necrosis factor transgenic (TNF-Tg) mice is associated with B-cell translocation into sinuses of joint-draining popliteal lymph nodes (PLNs) via…
Abstract Number: 0334 • ACR Convergence 2022
Performance of Diagnosis Codes for Identification of Prevalent Lupus Nephritis Patients from Electronic Health Records
Zara Izadi¹, Alfredo Aguirre², Christine Anastasiou², Julia Kay³, Gabriela Schmajuk⁴ and Jinoos Yazdany⁵, ¹University of California San Francisco, San Francisco, CA, ²University of California, San Francisco, San Francisco, CA, ³UCSF, San Francisco, CA, ⁴UCSF / SFVA, San Francisco, CA, ⁵UCSF, San Rafael, CA
Background/Purpose: Real-world data could provide valuable information in the study of lupus nephritis (LN), if these cases could be reliably identified. A lack of ability…
Abstract Number: 0999 • ACR Convergence 2022
Differences in Chromatin Accessibility Pre- and Post-Induction Therapy in Pediatric Lupus
Joyce Hui-Yuen¹, Kaiyu Jiang², Susan Malkiel³, Betty Diamond³ and James Jarvis⁴, ¹North Shore LIJ Health System, Great Neck, NY, ²University at Buffalo, Buffalo, NY, ³Feinstein Institutes for Medical Research, Manhasset, NY, ⁴Department of Pediatrics, University at Buffalo Clinical and Translational Research Center, Buffalo, NY
Background/Purpose: Systemic lupus erythematosus (SLE) may be triggered by gene-environment interactions. Data are scarce on how epigenetic variance contributes to disease risk in pediatric SLE…
Abstract Number: 1250 • ACR Convergence 2022
Physiologic Adaptive Change of the Patellar and Achilles Tendons: Sensitivity to Change Detected by Computer Analysis of Sequential Static Images
CARLOS ANTONIO GUILLEN ASTETE, Africa Andreu Suarez and Marina Tortosa Cabanas, Ramon y Cajal University Hospital, Madrid, Spain
Background/Purpose: Ultrasound studies stratify the results of the evaluations in ordinal degrees of intensity of findings dependent on the evaluator's opinion. Computer analysis of static…
Abstract Number: 2211 • ACR Convergence 2022
Identification of Plasma Metabolomic Biomarkers of Juvenile Idiopathic Arthritis
Amar Kumar¹, Joshua Tartarian², Valentina Shakhnovich³, Carl Langefeld⁴, Daniel Lovell⁵, Susan Thompson⁶, Mara Becker⁷ and Ryan Funk⁸, ¹University of Kansas, Kansas City, KS, ²University of Kansas Medical Center, Kansas City, KS, ³University of Missouri-Kansas City School of Medicine & Children’s Mercy Kansas City, Kansas City, MO, ⁴Wake Forest School of Medicine, Winston Salem, NC, ⁵Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ⁶Cincinnati Children's Hospital Medical Center/Univ of Cincinnati College of Medicine, Blue Ash, OH, ⁷Duke University Medical Center/Duke Clinical Research Institute, Durham, NC, ⁸University of Kansas, Leawood, KS
Background/Purpose: Identification of disease and therapeutic biomarkers remains a barrier to the early diagnosis of and initiation of effective therapy for juvenile idiopathic arthritis (JIA).…
Abstract Number: 0383 • ACR Convergence 2022
Analysis of the Performance of an Artificial Intelligence Algorithm for the Detection of Radiographic Sacroiliitis in an Independent Cohort of axSpA Patients Including Both Nr-axSpA and r-axSpA
Fabian Proft¹, Janis Vahldiek², Joeri Nicolaes³, Rachel Tham⁴, Bengt Hoepken⁵, Baran Ufuktepe⁶, Denis Poddubnyy¹ and Keno Kyrill Bressem², ¹Department of Gastroenterology, Infectious Diseases and Rheumatology, Charité – Universitätsmedizin Berlin, Berlin, Germany, ²Charité – Universitätsmedizin Berlin, Berlin, Germany, ³UCB Pharma, Anderlecht, Belgium, ⁴UCB Pharma, Slough, UK, Overland Park, KS, ⁵UCB Pharma, Monheim am Rhein, Germany, ⁶UCB Pharma A.S., Istanbul, Turkey
Background/Purpose: Conventional radiography of the sacroiliac joints is the first imaging method if axial spondyloarthritis (axSpA) is suspected. The presence of definite radiographic sacroiliitis is…
Abstract Number: 1059 • ACR Convergence 2022
Vision Transformer Assisting Rheumatologists in Screening for Capillaroscopy Changes in Systemic Sclerosis: An Artificial Intelligence Solution
Alexandru Garaiman¹, Farhad Nooralahzadeh², Carina Mihai¹, Nikitas Gkikopoulos¹, Nicolas Perez Gonzalez², Mike Becker¹, Oliver Distler¹, Michael Krauthammer³ and Britta Maurer⁴, ¹Department of Rheumatology, University Hospital Zurich, University of Zurich, Zürich, Switzerland, ²Department of Biomedical Informatics, University of Zurich, Zürich, Switzerland, ³Department of Quantitative Biomedicine, University of Zurich, Zürich, Switzerland, ⁴Department of Rheumatology and Immunology, University Hospital Bern, University of Bern, Bern, Switzerland
Background/Purpose: An accurate assessment of nailfold capillaroscopy (NFC) images has great importance in the diagnosis and prognosis of systemic sclerosis (SSc). To overcome some of…
Abstract Number: 1404 • ACR Convergence 2022
Machine Learning Model to Accurately Identify Rheumatoid Arthritis Patients Using Raw Electronic Health Record Data
Vinit Gilvaz¹, Anthony Reginato², Deepan Dalal³ and Brad Crough⁴, ¹Brown University, East Providence, RI, ²Brown University, Providence, RI, ³Brown University School of Medicine, Providence, RI, ⁴Brown Physicians Inc., Providence, RI
Background/Purpose: Patients with chronic medical conditions like rheumatoid arthritis (RA) have a wealth of clinical data stored within their electronic medical records (EMR). Artificial intelligence…
Abstract Number: 2221 • ACR Convergence 2022
The Molecular Endotypes of Type 1 and Type 2 SLE
Robert Robl¹, Amanda Eudy², Prathyusha Bachali³, Jennifer L Rogers⁴, Megan Clowse⁵, David Pisetsky⁶ and Peter lipsky¹, ¹AMPEL BioSolutions, Charlottesville, VA, ²Duke University, Raleigh, NC, ³AMPEL BioSolutions, Redmond, WA, ⁴Duke University School of Medicine, Division of Rheumatology & Immunology, Durham, NC, ⁵Duke University, Durham, NC, ⁶Duke University Medical Center, Durham, NC
Background/Purpose: To characterize the molecular landscape of patients with Type 1 and Type 2 systemic SLE erythematosus (SLE) by analyzing gene expression profiles from peripheral…
Abstract Number: 0385 • ACR Convergence 2022
T Cell Receptor Sequencing Identifies Two Classes of T Cells Enriched in HLA-B27-associated Inflammation
Michael Paley¹, Lynn Hassman², Grace Paley², Nicole Linskey², Philip Ruzycki², Jennifer Laurent², Lacey Feigl², Luke Springer² and Wayne Yokoyama², ¹Washington University in St. Louis, Saint Louis, MO, ²Washington University School of Medicine, St. Louis, MO
Background/Purpose: HLA-B27 is genetically linked to Axial Spondyloarthritis (axSpA) and anterior uveitis (AU), an inflammatory ocular disease that can lead to cataract, glaucoma, and permanent…
Abstract Number: 1067 • ACR Convergence 2022
Analysis of the Transcriptomic Profiles of Rheumatic Skin Diseases Reveals Disease-specific Endotypes
Sneha Shrotri¹, Kathryn Kingsmore Allison¹, Prathyusha Bachali², Amrie Grammer³ and Peter Lipsky¹, ¹AMPEL BioSolutions, Charlottesville, VA, ²AMPEL BioSolutions, Redmond, WA, ³AMPEL LLC, Charlottesville, VA
Background/Purpose: Patients with rheumatic skin diseases such as cutaneous lupus erythematosus (CLE) and systemic sclerosis (SSc) can be classified from individuals with healthy skin using…
Abstract Number: 1406 • ACR Convergence 2022
Integrative Multi-omic Phenotyping in Blood Identifies Molecular Signatures and Candidate Biomarkers of ACPA-negative Rheumatoid Arthritis
Benjamin Hur¹, Kevin Cunningham², John Davis¹ and Jaeyun Sung¹, ¹Mayo Clinic, Rochester, MN, ²University of Minnesota, Rochester, MN
Background/Purpose: ACPA detection assays are often used for RA diagnosis due to their high specificity ( >90%). However, current ACPA assays (e.g., anti-CCP2 ELISA) have…
Abstract Number: 0501 • ACR Convergence 2022
Single-molecule Spatial Transcriptomic Analysis Reveals Distinct Cellular Networks in Rheumatoid Arthritis Synovia
Roopa Madhu¹, Kartik Bhamidipati¹, Nghia Millard², Michelle Curtis², Ye Cui³, Youngmi Kim³, Ellen Gravallese⁴, Soumya Raychaudhuri¹, Michael Brenner⁴, ilya Korsunsky¹ and Kevin Wei⁵, ¹Brigham and Women's Hospital, Boston, MA, ²Broad Institute, Boston, MA, ³Nanostring Technologies Inc., Seattle, WA, ⁴Brigham and Women's Hospital, Harvard Medical School, Boston, MA, ⁵Brigham and Women's Hospital and Harvard Medical School, Boston, MA
Background/Purpose: Chronic joint inflammation in rheumatoid arthritis (RA) arises from the interactions of many cell types. Single-cell transcriptomic profiling of RA joints has identified novel…
Abstract Number: 1110 • ACR Convergence 2022
Solving Sarcoidosis: A Transcriptome-based Meta-analysis of Clinical Sarcoidosis Studies Illustrates Shared Pathophysiology, Identifies Candidate Biomarkers and Suggests a Therapeutic Mechanism of JAK Inhibition
Ingrid Lindquist¹, James T. Rosenbaum² and Marcia Friedman³, ¹Oregon Health and Science University, Portland, OR, ²Legacy Devers Eye Institute, Portland, OR, ³Oregon Health and Science University, Division of Arthritis and Rheumatic Diseases, Portland, OR
Background/Purpose: Sarcoidosis is a systemic, non-caseating granulomatous disease driven by a dysregulated immune response to environmental antigens. A wide range of clinical manifestations coupled with…

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