Abstracts tagged "Animal Model"

Abstract Number: 1322 • ACR Convergence 2023
Efzofitimod, a First-in Class NRP2-targeting Immunomodulator, Ameliorates Rheumatoid Arthritis and Associated Lung Fibrosis in Preclinical Models
Christoph Burkart, Clara Polizzi, Lisa Eide, Max Pastenes, David Siefker and Leslie Nangle, aTyr Pharma, San Diego, CA
Background/Purpose: Efzofitimod, a novel immunomodulator, has shown clinical proof-of-concept in a Phase 1b/2a clinical trial in patients with pulmonary sarcoidosis and is currently enrolling a…
Abstract Number: 2437 • ACR Convergence 2023
Translocation of Intestinal Bacteria to Axial and Peripheral Joints in a Model of Spondyloarthropathy
Benjamin Cai¹, Rabina Giri², Helen Benham³, Linda Rehaume¹, Geoffery Strutton³, Anne-Sophie Bergot¹ and Ranjeny Thomas⁴, ¹Frazer Institute, The University of Queensland, Woolloongabba, Australia, ²Mater Research Institute-UQ, Woolloongabba, Australia, ³Princess Alexandra Hospital, Woolloongabba, Australia, ⁴Frazer Institute, The University of Queensland, Brisbane, Australia
Background/Purpose: In spondylarthropathy (SpA), such as psoriatic arthritis (PsA) and ankylosing spondylitis (AS), arthritis is often associated with gut inflammation. After systemic β-1,3-glucan (curdlan) injection,…
Abstract Number: L04 • ACR Convergence 2022
Psoriatic Arthritis Disease Subtypes Mediated by CD8 T Cells Are Phenocopied in a Novel Humanized Murine Model of Psoriasis and Arthritis
Maria de la Luz Garcia-Hernandez¹, Javier Rangel-Moreno¹, Ananta Paine², Soumyaroop Bhattacharya³, Jeffrey Fox⁴, Ernest Meyer⁵, Brian Isett⁵, Riyue Bao⁶, Tullia Bruno⁶ and Christopher Ritchlin⁷, ¹University of Rochester, Rochester, NY, ²ORNA Tx, Southborough, MA, ³Department of Pediatrics, University of Rochester Medical Center, Rochester, NY, ⁴CMSR, University of Rochester Medical Center, Rochester, NY, ⁵UPMC Hillman Cancer Center, Pittsburgh, PA, ⁶University of Pittsburgh, Pittsburgh, PA, ⁷University of Rochester Medical Center, Rochester, NY
Background/Purpose: A pivotal clinical characteristic of psoriatic arthritis (PsA) is disease manifestations in several domains (skin, entheses, joints, spine) and multiple domain involvement is prevalent,…
Abstract Number: 0042 • ACR Convergence 2022
The Pathogenic Role of Lymphatic Vessels in Autoimmune Valvular Carditis
Amritha Yellamilli¹, Victoria Osinski², Maria Firulyova³, Jennifer Auger⁴, Lee Meier², Jessica Faragher⁵, Aubyn Marath⁶, Konstantin Zaitsev³ and Bryce Binstadt⁵, ¹Stanford University School of Medicine, Palo Alto, ²University of Minnesota School of Medicine, Minneapolis, MN, ³ITMO University, Saint Petersburg, Russia, ⁴University of Minnesota Medical School, Minneapolis, MN, ⁵University of Minnesota, Minneapolis, MN, ⁶CardioStart, Portland
Background/Purpose: Valvular carditis is a serious complication of systemic autoimmune diseases. Although endothelial cells are thought to play an important role in autoimmune valvular carditis,…
Abstract Number: 1549 • ACR Convergence 2022
Toward Safer Glucocorticoid Therapy
Xingyu Pan¹, Qiongqiong Hou¹, Jiahui Xu¹, Yake Ma¹, Jiawen Li¹, Min Li¹, Jing Su¹, Xuerou Shi¹, William Bracken² and David Katz², ¹WuXi AppTec, Nantong, China, ²Sparrow Pharmaceuticals, Portland, OR
Background/Purpose: SPI-62 is a potent 11b-hydroxysteroid dehydrogenase type 1 (HSD-1) inhibitor entering Phase 2 development as adjunctive therapy to prednisolone in polymyalgia rheumatica, as well…
Abstract Number: 2182 • ACR Convergence 2022
mRNA Vaccine Against Fibroblast Activation Protein Ameliorates Murine Models of Inflammatory Arthritis
Xiaowei Zhang¹, Antony Jozic¹, Pingfang Song¹, Qiang Xu², Xiaofei Shi³, Hong Wang⁴, Lindsey Bishop¹, Hillary Struthers¹, John Rutledge⁵, Shuang Chen¹, Fei Xu¹, Meaghan Hancock¹, Daocheng Zhu⁶, Gaurav Sahay¹ and Cong-Qiu Chu¹, ¹Oregon Health & Science University, Portland, OR, ²Guangzhou University of Chinese Medicine, Guangzhou, China, ³Henan University of Science and Technology, Luoyang, China, ⁴Wenzhou Medical University, Wenzhou, China, ⁵Portland VA Research Foundation, Portland, ⁶Shanghai Kexin Biotechnology, Shanghai, China
Background/Purpose: Synovial fibroblasts in patients with rheumatoid arthritis (RA) contribute substantially to the perpetuation of synovitis and invasion to cartilage and bone, and have been…
Abstract Number: 0049 • ACR Convergence 2022
IL-18 Receptor-α Signaling Pathway Contributes to Autoantibody-induced Arthritis via Neutrophil Recruitment
Shinjiro Kaieda and Tomoaki Hoshino, Kurume University School of Medicine, Kurume, Japan
Background/Purpose: We have previously reported that IL-18 levels in the lungs, serum and bronchoalveolar lavage fluid (BALF) were increased in patients with idiopathic pulmonary lung…
Abstract Number: 1664 • ACR Convergence 2022
TRIM21 as a Regulator of UVB-Driven IFN Responses in Lupus
Richard Moore, Gantsetseg Tumurkhuu, Daniel Wallace and Caroline Jefferies, Cedars-Sinai Medical Center, Los Angeles, CA
Background/Purpose: Patients with systemic lupus erythematosus (SLE) experience photosensitivity where exposure to ultraviolet light B (UVB) drives lupus flares and systemic symptoms. Although the mechanisms…
Abstract Number: 2240 • ACR Convergence 2022
Autoimmunity Against Melanoma Differentiation-Associated Protein 5 Advances Acute Lung Injury to Interstitial Lung Disease in Mice
Yuki Ichimura¹, Risa Konishi¹, Toshifumi Nomura², Manabu Fujimoto³ and Naoko Okiyama¹, ¹Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan, ²University of Tsukuba, Tsukuba, Ibaraki, Japan, ³Osaka University, Suita, Japan
Background/Purpose: Anti-melanoma differentiation-associated protein 5 (MDA5) antibody-positive dermatomyositis (DM) is characterized by amyopathic DM with interstitial lung disease (ILD). Patients with anti-MDA5 antibody-associated DM sometimes…
Abstract Number: 0050 • ACR Convergence 2022
Effect of Disease-modifying Anti-rheumatic Drugs on Lung Microenvironment of SKG Mice
Sung Hae Chang¹, Jeongjun Choe², Seon Uk Kim³, Jeong Yeon Kim⁴, Sung Won Lee⁵, Jeong Seok Lee⁶ and Eun Young Lee⁴, ¹Soonchunhyang University College of Medicine, Bongmyeong-dong, Dongnam-gu, Cheonan-si, Republic of Korea, ²Sungkyunkwan University, Seoul, Republic of Korea, ³Seoul National University College of Medicine, Jongno-gu, Seoul, Republic of Korea, ⁴Seoul National University College of Medicine, Seoul, Republic of Korea, ⁵Sooncheonhyang University College of Medicine, Seoul, Republic of Korea, ⁶Korea Advanced Institute of Science and Technology, KAIST, Graduate school of Medical Science and Engineering, Daejeon, Republic of Korea
Background/Purpose: Rheumatoid arthritis-associated interstitial lung disease (RA-ILD) is one of the pivotal extrapulmonary conditions. However, the pathophysiology of RA-ILD, including the effect of disease-modifying anti-rheumatoid…
Abstract Number: 1703 • ACR Convergence 2022
Potential Regulation of NK Cells by CD1c+ Dendritic Cells Through RIG-I/DDX60 Pathway Involved in Th17 Responses in Primary Sjögren Syndrome
Ildefonso Sánchez Cerrillo¹, Marta Calvet Mirabent¹, Ana Triguero², Diego Calzada Fraile³, Mariel Valdivia¹, Marta Ramírez³, Enrique Vázquez de Luis³, Alberto Benguría Filippini³, Roberto Moreno³, María Magdalena Adrados de llano¹, Hortensia de la Fuente¹, Ilya Tsukalov⁴, Emilia Roy Vallejo⁵, Almudena Ramiro³, Salvador Iborra⁶, Francisco Sánchez Madrid¹, Ana Dopazo³, Isidoro Gonzalez⁷, Santos Castañeda⁸ and Enrique Martín Gayo⁴, ¹Hospital La Princesa, Madrid, Spain, ²Hospital Universitario La Princesa, Madrid, Spain, ³Centro de Investigaciones Cardiovasculares, Madrid, Spain, ⁴Universidad Autónoma de Madrid, Madrid, Spain, ⁵Internal Medicine Department, Hospital Universitario La Princesa, Instituto de Investigación Sanitaria La Princesa (IIS-IP), Madrid, Spain, ⁶Universidad Complutense de Madrid, Madrid, Spain, ⁷Hospital Universitario de La Princesa, Madrid, Spain, ⁸Division of Rheumatology, Hospital Universitario de La Princesa, IIS-Princesa, Madrid, Spain
Background/Purpose: Altered Th17, CD8+ T cell and B cell adaptative immune responses in patients with primary Sjögren syndrome (pSS) have been characterized in salivary glands…
Abstract Number: 2260 • ACR Convergence 2022
Transcutaneous Vagal Nerve Stimulation Improves Destabilized Medial Meniscus-Induced Osteoarthritis Pain Associated with Significant Serum Biomarker Changes
Shivmurat Yadav¹, Monika Niewiadomska¹, Lynsie Morris², Taylor Conner², Jessica Lumry², Sanique South³, Emmaline Prinz², Matlock Jeffries², Timothy Griffin², Stavros Stavrakis¹ and Mary Beth Humphrey¹, ¹University of Oklahoma Health Sciences Center, Oklahoma City, OK, ²Oklahoma Medical Research Foundation, Oklahoma CIty, OK, ³Oklahoma Medical Research Foundation, Okahoma City, OK
Background/Purpose: Osteoarthritis (OA) is the most common form of arthritis, affecting over 32.5 million US adults and characterized by pain, stiffness, swelling and functional disability.…
Abstract Number: 0055 • ACR Convergence 2022
Protective Role for Mast Cells in TNF-induced Inflammatory-Erosive Arthritis and Its Associated Lymphatic Dysfunction in Mice
Yue Peng¹, H. Mark Kenney², Karen Bentley³, Lianping Xing⁴, Christopher Ritchlin⁵ and Edward Schwarz¹, ¹University of Rochester Medical Center, Rochester, NY, ²University of Rochester Medical Center, Henrietta, NY, ³University of Rochester, Rochester, ⁴University of Rochester Medical Center, Webster, NY, ⁵Allergy, Immunology and Rheumatology Division, University of Rochester Medical School, Canandaigua, NY
Background/Purpose: Inflammatory-erosive arthritis is exacerbated by lymphatic dysfunction (1). Mast cells (MCs) regulate lymphatic vessels by releasing inflammatory and vasoactive mediators (e.g. histamine) (2). Previous…
Abstract Number: 1704 • ACR Convergence 2022
Interaction of Macrophages and Natural Killer Cells in Pathogenesis of HIV-1-Associated Inflammatory Arthritis
Can Sungur¹, Gao Hongbo¹, Li-ping Yang², Liang Shan¹ and Wayne Yokoyama³, ¹Washington University, St. Louis, MO, ²Washington University in St. Louis, St. Louis, MO, ³Washington University School of Medicine, St. Louis, MO
Background/Purpose: Human immunodeficiency virus (HIV) remains a significant life-threatening agent and burden on public health. Lesser studied and understood aspects of HIV infections include HIV-associated…
Abstract Number: 2264 • ACR Convergence 2022
Dysregulated Interferon Gamma Signals Promote Systemic Autoimmunity in STAT1 Gain of Function Syndrome
Andrea Largent¹, Jane Buckner², David Rawlings¹ and Shaun Jackson¹, ¹Seattle Children's Research Institute, Seattle, WA, ²Benaroya Research Institute at Virginia Mason, Seattle, WA
Background/Purpose: Heterozygous gain-of-function mutations in STAT1 promote a complex disorder of immune dysregulation including chronic mucocutaneous candidiasis (CMC) and systemic autoimmunity. However, given widespread expression…

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