Abstracts tagged "Animal Model"

Abstract Number: 0094 • ACR Convergence 2024
Small GTPase Rab4A Regulates Mouse Behavior Through Altered Serum Serotonin Levels and Microglial mTORC1 Activation in Lupus-prone B6.TC Mice
Thomas Winans¹, Xiaojing Wang², Joshua Lewis², Jessica Nolan¹, Laurence Morel³ and Andras Perl⁴, ¹SUNY Upstate Medical University, Syracuse, ²SUNY Upstate Medical University, Syracuse, NY, ³University of Texas health San Antonio, San Antonio, TX, ⁴SUNY, Syracuse, NY
Background/Purpose: Rab4A is a small GTPase that is overexpressed in patients and mice with systemic lupus erythematosus (SLE, PubMed ID: 23897774; PubMed ID 31805010). Rab4A…
Abstract Number: 0964 • ACR Convergence 2024
Engaging the PD-1 Pathway Attenuates Inflammation Associated Fibrosis in Systemic Sclerosis Fibroblasts and a Preclinical Mouse Model
Maithri Aspari¹, Voon Ong², Klaus Soendergaard³, Esben Naeser⁴, Malene Hvid⁴, Angela Tam⁵, Shiwen Xu⁵, Christopher Denton⁶, David Abraham⁷, Bent Deleuran¹ and Stinne Greisen⁸, ¹Aarhus University, Aarhus, Denmark, ²University College London, London, England, United Kingdom, ³Aarhus University Hospital, Aarhus, Denmark, ⁴AARHUS UNIVERSITET, AARHUS C, Denmark, ⁵University College London, London, United Kingdom, ⁶University College London, Northwood, United Kingdom, ⁷UCL, London, United Kingdom, ⁸Aarhus University/Aarhus University Hospital, Aarhus, Denmark
Background/Purpose: The precise molecular mechanisms driving fibrosis in diffuse cutaneous systemic sclerosis (dcSSc) remain to be elucidated. The immune regulatory programmed cell death protein 1…
Abstract Number: 0097 • ACR Convergence 2024
The Human Lupus TREX1 D18N Mutation Engineered in C. Elegans Leads to Cell Death. What Can We Learn About Lupus Using C. Elegans?
Htay Htay Kyi¹, Patricia Barreto², Yeshaswi Pulijala³, Thejasvi Venkatachalam³ and Martha Soto², ¹Rutgers New Jersey Medical School, Jersey City, NJ, ²Robert Wood Johnson Medical School, Piscataway, NJ, ³RWJ-PATHOLOGY-RESEARCH-PISC, Piscataway
Background/Purpose: TREX1 gene encodes the three prime repair exonuclease 1 enzyme that degrades DNA. TREX1 plays a key role in genomic DNA degradation, cell death…
Abstract Number: 0971 • ACR Convergence 2024
Ligand-Receptor Analysis Reveals Myeloid-Mediated Pro-Inflammatory Responses and Loss of Mesenchymal Signaling Driven by TNFR1 in Experimental Pulmonary Hypertension
Gaochan Wang¹, Stacey Duemmel² and Benjamin Korman³, ¹University of Rochester School of Medicine and Dentistry, Rochester, NY, ²URMC, UNIVERSITY OF ROCHESTER, Rochester, NY, ³University of Rochester, Rochester, NY
Background/Purpose: Pulmonary hypertension (PH) is a severe, progressive disorder characterized by elevated pulmonary artery pressures, right ventricular hypertrophy, and increased mortality which is a severe…
Abstract Number: 0281 • ACR Convergence 2024
Intra-articular Treatment Combining Sustained Release Colchicine Encapsulated in Microspheres, and Ropivacaine, Is Effective in Inflammatory Arthritis in Rats
Julien GRASSOT¹, Farah MARZOUKI², Roxane HERVE³, Magali BECKLER⁴, Luca SEMERANO⁵, Natacha BESSIS⁶, Elodie RIVIERE⁷, Charles SANSON², Gauthier POULIQUEN², Philippe POULETTY⁸ and Marie-Christophe BOISSIER⁹, ¹PK MED, LYON, Rhone-Alpes, France, ²PK MED, LYON, France, ³INSERM U1125, Bobigny, France, ⁴INSERM 1125, Bobigny, France, ⁵Avicenne Teaching Hospital APHP, Bobigny, France, ⁶INSERM, Université Sorbonne Paris Nord, PARIS, France, ⁷INSERM, Université Sorbonne Paris Nord, APHP, PARIS, France, ⁸PK MED, PARIS, France, ⁹University Sorbonne Paris Nord, Bobigny, France
Background/Purpose: Gout is a common disease with a prevalence and incidence on the rise worldwide. However, approved treatments to treat acute gout flares have slow…
Abstract Number: 1430 • ACR Convergence 2024
C57BL/6.NOD-Aec1Aec2 Mice Recapitulate Sjögren’s Serology Better Than NOD.B10Sn-H2b Models and JAK Inhibitor Treatment Improves Immunoglobulins and Salivary Gland Inflammation but Not Salivary Flow in Sjögren’s Mice
Sara McCoy¹ and Ilya Gurevic², ¹University of Wisconsin, Middleton, WI, ²University of Wisconsin, Madison
Background/Purpose: Sjögren’s disease (SjD) is a systemic autoimmune disease in which interferons (IFNs) are believed to play a major role/ JAK inhibitors (JAKinibs) block IFN…
Abstract Number: 0320 • ACR Convergence 2024
Comparative Transcriptional Profiling Reveals Shared Pathway Activation Between Human Jo-1+ Anti-Synthetase Syndrome and Murine Histidyl-tRNA Synthetase-Induced Myositis
Iago Pinal-Fernandez¹, Daniel Reay², Timothy Oriss², katherine Pak³, Maria Casal-Dominguez⁴, jose milisenda⁵, Albert Selva-O’Callaghan⁶, Werner Stenzel⁷, Andrew Mammen¹ and Dana Ascherman⁸, ¹NIH, Bethesda, MD, ²University of Pittsburgh School of Medicine, Pittsburgh, PA, ³National Institutes of Health, Bethesda, MD, ⁴NIH, Bathesda, MD, ⁵Hospital Clinic de Barcelona, Barcelona, Spain, ⁶Systemic Autoimmune Disease Unit, Vall d’Hebron Institute of Research, Barcelona, Spain, ⁷Charite University, Berlin, Germany, ⁸Division of Rheumatology and Clinical Immunology, University of Pittsburgh Medical Center, Pittsburgh, PA
Background/Purpose: Previous work has shown unique gene expression profiles in muscle tissue corresponding to the anti-synthetase syndrome, with an emphasis on interferon gene signatures (Type…
Abstract Number: 1776 • ACR Convergence 2024
Animal Models of Pediatric MOGAD
Yike Jiang¹, Elliot Lin², Estefany Reyes², Devon DiPalma², Sundar Khadka², Heather Van Mater² and Mari Shinohara², ¹Duke Univerisity, Durham, NC, ²Duke University, Durham, NC
Background/Purpose: Myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) is a devastating demyelinating disease that disproportionally affects children. Discovered in 2018, MOGAD is now internationally recognized as…
Abstract Number: 0785 • ACR Convergence 2024
Exploring the Link Between Atgl-Dependent Lipolysis and Dermal Fibrosis in Systemic Sclerosis
Elizabeth Caves¹, Agrani Dixit¹, Anna Jussila², Vivian Lei³, Hailey Edelman⁴, Muhammad Hamdan⁵, Ian Odell⁵, Monique Hinchcliff⁶, Radhika Atit⁷ and Valerie Horsley¹, ¹Yale School of Medicine, New Haven, CT, ²Stanford Medicine, Stanford, CA, ³University of North Carolina School of Medicine, Chapel Hill, ⁴Vanderbilt School of Engineering, New Haven, ⁵Yale School of Medicine, New Haven, ⁶Yale School of Medicine, Westport, CT, ⁷Case Western Reserve University College of Arts and Sciences, Cleveland
Background/Purpose: Resident lipid-filled dermal adipocytes are depleted in both systemic sclerosis (SSc) and scleroderma mouse models, but mechanisms are poorly understood. We undertook studies in mouse…
Abstract Number: 1838 • ACR Convergence 2024
M5542: A Potent CD80, CD86, and OX40L Antagonist Fusion Molecule for the Treatment of Autoimmune Diseases
Michelle Downing¹, Ling Zhang¹, Aditee Desphpande¹, Hong Zhang¹, Ohad Tarcic², Mira toister-achituv², Alec Gross³, Gang Chen³ and Chia Chi Sun¹, ¹EMD Serono Research and Development Institute, Inc., Billerica, MA, ²Inter-lab Ltd, Merck KGaA, Yavne, Israel, ³EMD Serono Reserch and Development Institute, Inc, Billerica, MA
Background/Purpose: Overactive adaptive immune responses contribute to many autoimmune diseases such as systemic lupus erythematosus (SLE). Chronically activated autoreactive T-effector cells play a pivotal role…
Abstract Number: 0830 • ACR Convergence 2024
Activation of Autoreactive Lymphocytes in the Lung by STING Gain-of-function Mutation Expressing Radioresistant Cells
Kevin Gao¹, Kristy Chiang¹, Sharon Subramanian¹, Xihui Yin², Paul Utz³, Kerstin Nundel¹, Katherine A. Fitzgerald⁴ and Ann Marshak-Rothstein¹, ¹UMass Chan Medical School, Worcester, MA, ²Stanford University School of Medicine, Palo Alto, CA, ³Stanford University, Stanford, CA, ⁴UMass Chan Medical School, Worchester, MA
Background/Purpose: Gain-of-function mutations in STING, a critical mediator of dsDNA sensing, lead to a severe autoinflammatory syndrome known as STING-Associated Vasculopathy with onset in Infancy…
Abstract Number: 1853 • ACR Convergence 2024
Mutated Nod2 Enhances Pathogenic Th17 Responses That Promote Experimental Blau Syndrome
Leah Huey¹, Emily Vance¹, Kofi Asare-Konadu² and Ruth Napier³, ¹Oregon Health & Science University, Portland, OR, ²Department of Molecular Microbiology and Immunology, Oregon Health & Science University, Portland, OR, ³Department of Molecular Microbiology and Immunology and Division of Arthritis and Rheumatic Disease, Oregon Health & Science University, VA Portland Health Care System, Portland, OR
Background/Purpose: Blau syndrome, a pediatric rheumatological disease characterized by uveitis, arthritis, and dermatitis, is caused by a single point mutation in the gene NOD2. Nod2…
Abstract Number: 0023 • ACR Convergence 2024
Adenosine and Guanosine-based Oligonucleotide Attenuates Catabolic Phenotypes in Chondrocytes and Slows Progression of Surgically Induced Osteoarthritis
Yoonhee Kim¹, Jin Han² and Seungwoo Han³, ¹Kyungpook National University School of Medicine, Buk-gu, Daegu, Republic of Korea, ²Kyungpook National University, Buk-gu, Daegu, Republic of Korea, ³Kyungpook national university hospital, Daegu, South Korea
Background/Purpose: Adenosine is a potent endogenous modulator of inflammation; however, its clinical application is limited due to its extremely short half-life in blood. In this…
Abstract Number: 0922 • ACR Convergence 2024
Generation and Pathophysiological Analysis of M694I Variant Knock-in Mice of Human MEFV Gene: Insights from Single-Cell RNA Sequencing
Tomohiro Koga, Yoshika Tsuji and Atsushi Kawakami, Nagasaki University, Nagasaki, Japan
Background/Purpose: The primary objective of this study was to generate knock-in mice with the M694I variant of the human MEFV gene, a critical variant in…
Abstract Number: 1854 • ACR Convergence 2024
TCR-Nck Modulators: Pioneering Oral Modulation of T Cell Receptor Activation Holding the Promise of Treating Autoimmune Diseases
Christopher VanDeusen¹, Shannon Dwyer², Aldo Borroto³, Andres Gagete¹, D Scott Batty Jr¹ and Balbino Alarcon³, ¹Artax Biopharma, Inc, Cambridge, MA, ²Artax Biopharma, Inc., Cambridge, ³Centro de Biología Molecular Severo Ochoa, Madrid, Spain
Background/Purpose: Loss of T-cell tolerance to self-antigens underlies the development of all autoimmune diseases, and despite progress, there remains a significant unmet need for patients.…

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