Abstracts tagged "signal transduction"

Abstract Number: LB05 • ACR Convergence 2025
ER Stress-Induced ATP2A3 Drives Rheumatoid Arthritis via Activation of STING Signaling
yujie cai, Nanfang hospital, Guangzhou, China (People's Republic)
Background/Purpose: Rheumatoid arthritis (RA) is an autoimmune disease characterized by persistent synovial inflammation and joint bone destruction. Endoplasmic reticulum (ER) stress plays an important role…
Abstract Number: 2498 • ACR Convergence 2025
Effect of autologous myeloablative hematopoietic stem cell transplantation on skin and peripheral blood mononuclear cells in systemic sclerosis patients with interstitial lung disease
Poulami Dey¹, Rachael Bogle², Qinmengge Li³, Olesya Plazyo⁴, Rosemary Gedert⁴, Carleigh Zahn⁴, Pei-Suen Tsou⁴, John Varga⁴, Lam Tsoi⁴, Johann Gudjonsson⁴ and Dinesh Khanna⁴, ¹Michigan Medicine, Ann Arbor, MI, ²University of Michigan, Holland, OH, ³University of Michigan, Ypsilanti, MI, ⁴University of Michigan, Ann Arbor, MI
Background/Purpose: Systemic sclerosis (SSc) is characterized by skin fibrosis, dysregulated immune response, and vascular system dysfunction. Interstitial lung disease (ILD) is one of the leading…
Abstract Number: 1899 • ACR Convergence 2025
Regional Variability in SLE Damage Accumulation by Disease Activity Across the Lupus Federated Data Network (LupusNet)
Manuel Ugarte-Gil¹, Sarah Gasman², Federico Zazzetti³, Ashley Orillion², Anna Sheahan⁴, Clair Blacketer², Michel van Speybroeck⁵, Reyhan Sonmez⁶, Erika Noss², Rocío Gamboa-Cárdenas⁷, Víctor Pimentel-Quiroz⁸, Kaleb Michaud⁹, Patti Katz¹⁰, Rangi Kandane-Rathnayake¹¹, Eric Morand¹², Worawit Louthrenoo¹³, Alberta Hoi¹⁴, Yi-Hsing Chen¹⁵, Jiacai Cho¹⁶, Laniyati Hamijoyo¹⁷, Shue Fen Luo¹⁸, Sandra Navarra¹⁹, Mandana Nikpour²⁰, José María Pego-Reigosa²¹, Iñigo Rúa-Figueroa²², Zulema Plaza²³, Maria Galindo-Izquierdo²⁴, Julia Martínez Barrio²⁵, Jaime Calvo²⁶, Antonio Fernández-Nebro²⁷, Raúl Menor Almagro²⁸, EVA GLORIA TOMERO MURIEL²⁹, Javier Narváez³⁰ and Chetan S. Karyekar³¹, ¹Grupo Peruano de Estudio de Enfermedades Autoinmunes Sistémicas, Universidad Científica del Sur, Lima, Peru; Hospital Guillermo Almenara Irigoyen, EsSalud, Lima, Peru, Lima, Peru, ²Johnson & Johnson, Spring House, PA, USA, Spring House, PA, ³Johnson & Johnson, Horsham, PA, USA, Ambler, PA, ⁴Johnson & Johnson, Horsham, PA, USA, Horhsam, PA, ⁵Johnson & Johnson, Beerse, Belgium, Beerse, Belgium, ⁶Capgemini Consulting, Zurich, Switzerland, Zurich, Switzerland, ⁷Universidad Científica del Sur, Lima, Peru, ⁸Grupo Peruano de Estudio de Enfermedades Autoinmunes Sistémicas, Universidad Científica del Sur, Lima, Perú; Rheumatology Department, Hospital Guillermo Almenara Irigoyen, EsSalud, Lima, Perú, Lima, Peru, ⁹University of Nebraska Medical Center, Omaha, NE, ¹⁰UCSF, San Rafael, CA, ¹¹Center for Inflammatory Diseases, Monash University, Clayton, Victoria, Australia, ¹²Centre for Inflammatory Diseases, Monash University and Monash Health, Melbourne, Victoria, Australia, ¹³Chiang Mai University Hospital, Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai, Thailand, Chiang Mai, Thailand, ¹⁴Centre for Inflammatory Diseases, Monash University and Department of Rheumatology, Monash Health, Clayton, Victoria, Australia, ¹⁵Taichung Veterans General Hospital, Division of Allergy, Immunology and Rheumatology, Taichung, Taiwan, Taichung, Taiwan (Republic of China), ¹⁶National University Hospital, Rheumatology Division, Department of Medicine, Singapore, Singapore, Singapore, Singapore, ¹⁷Padjadjaran University/Hasan Sadikin General Hospital, Division of Rheumatology, Department of Internal Medicine, Faculty of Medicine, Bandung, Indonesia, Badung, Indonesia, ¹⁸Chang Gung Memorial Hospital, Chang Gung University, Department of Rheumatology, Allergy and Immunology, Taipei, Taiwan, Taoyuan, Taiwan (Republic of China), ¹⁹University of Santo Tomas, Manila, Philippines, ²⁰University of Sydney, School of Public Health, Faculty of Medicine and Health, Sydney, New South Wales, Australia; St Vincent’s Hospital Melbourne, Department of Rheumatology, Fitzroy, Victoria, Australia, Melbourne, Victoria, Australia, ²¹Department of Rheumatology, University Hospital of Vigo, Vigo, Spain; IRIDIS Group (Investigation in Rheumatology and Immune-Diseases), Galicia Sur Health Research Institute, Vigo, Spain, ²²Hospital de Gran Canaria Doctor Negrin, Las Palmas GC, Spain, ²³Research Unit, Spanish Society of Rheumatology, Madrid, Spain, Madrid, Spain, ²⁴Department of Rheumatology, Hospital Universitario ¹² de Octubre, Madrid, Spain, Madrid, Spain, ²⁵Department of Rheumatology, Hospital Gregorio Marañón, Madrid, Spain, Madrid, Madrid, Spain, ²⁶Department of Rheumatology, Hospital Universitario Araba, School of Medicne, Universidad del País Vasco, BIOARABA Health Research Institute, Vitoria, Spain, Vitoria, Pais Vasco, Spain, ²⁷Hospital Regional Universitario de Malaga, Malaga, Spain, Malaga, Spain, ²⁸Department of Rheumatology, Hospital de Jerez, Spain, Puerto De Santa María, Spain, ²⁹Hospital Universitario de la Princesa, Madrid, Spain, ³⁰Hospital Universitario de Bellvitge, Barcelona, Spain, ³¹Johnson & Johnson, Spring House, PA, USA, Spring House
Background/Purpose: SLE is characterized by heterogeneous clinical presentation and periods of flare and remission, with variation in management globally. A goal for SLE management is…
Abstract Number: 0679 • ACR Convergence 2025
Inhibition of TGFb3 in Systemic Sclerosis Patients Does Not Result in TGFb Pathway Modulation in Skin Biopsies or Circulation
Parisa Mazrooei, Xuting Rebecca Sheng, Xiaoyun Yang, Lyrialle Han, Samira Jamalian, Daniel Repplinger, Jingxuan He, Evelin Logis, Jeongsup Shim, Angela Hendricks, Lena Wang, Andrew Thorley and Sara Glickstein, Genentech/Roche, South San Francisco
Background/Purpose: There are 3 isoforms of Transforming Growth Factor Beta (TGFb), a cytokine frequently upregulated in fibrosis. Chronic targeting of TGFb1 and TGFb2 for fibrotic…
Abstract Number: 0114 • ACR Convergence 2025
A rare variant in the Extl3 gene is associated with altered Wnt signaling pathway in a novel mouse model of axial spondyloarthritis
Stéphane HILLIQUIN¹, Karim IBRAHIM², Olivier Fogel³, Marcio DO CRUZEIRO⁴, Patricia Albanese⁵, Xavier HOUARD⁶, Claire BARDET² and Corinne MICELI-RICHARD⁷, ¹Département de Rhumatologie, Hôpital Cochin, Assistance publique des Hôpitaux de Paris, Université Paris-Cité, Paris, France, PARIS, France, ²Université Paris Cité, Institut des maladies musculo-squelettiques, Laboratory Orofacial Pathologies, UMR-S ¹³³³ Santé Orale and FHU-DDS-Net, Dental School, and Plateforme d’Imagerie du Vivant (PIV), Montrouge, France, Montrouge, France, ³AP-HP, Paris, France, ⁴Plateformes PDA et MouseT'IC, Institut Cochin, Université Paris Cité, Paris, France, Paris, France, ⁵Laboratoire Gly-CREET, Université Paris-Est Créteil Val de Marne (UPEC) Faculté des sciences et technologies, Créteil, France, ⁶Centre de Recherche Saint-Antoine, UMR_S⁹³⁸ INSERM /Sorbonne Université, Paris, France, PARIS, France, ⁷Rheumatology Department, Hôpital Cochin, APHP, PARIS, France
Background/Purpose: The ossification processes observed in ankylosing spondylitis (AS) remain incompletely understood. Substantial evidence from both human and animal studies implicates the Wnt signaling pathway…
Abstract Number: 0040 • ACR Convergence 2025
Identification Of A Novel, Expressed, Alternatively Spliced FCER1G Protein That Inhibits Receptor Function
Andrew Gibson¹, Jianming Wu², Chaoling Dong¹, R. Curtis Hendrickson¹, Travis Ptacek¹, Jeffrey Edberg¹ and Robert Kimberly¹, ¹University of Alabama at Birmingham, Birmingham, AL, ²University of Minnesota, Saint Paul, MN
Background/Purpose: The Tyrosine Activation Motif (ITAM)-containing FcRg chain, encoded by FCER1G, non-covalently couples with the immunoglobulin binding receptors, -- FcγRI (CD64), FcγRIIIa (CD16), and FcaRI…
Abstract Number: 0041 • ACR Convergence 2025
A genetically determined, serine-based and phosphorylation-dependent molecular switch regulates the inflammatory potential of human IgA
Andrew Gibson¹, Jianming Wu², R. Curtis Hendrickson¹, Travis Ptacek¹, Jeffrey Edberg¹ and Robert Kimberly¹, ¹University of Alabama at Birmingham, Birmingham, AL, ²University of Minnesota, Saint Paul, MN
Background/Purpose: Human serum IgA can paradoxically inhibit immune cell activation. Inhibition of such activation, mediated by the inhibitory configuration of the immunoreceptor tyrosine-based activation motif…
Abstract Number: 0275 • ACR Convergence 2024
Targeting IRAK4 in Monosodium Urate Crystals Induced Inflammation
Sadiq Umar¹ and Sriram Ravindran², ¹University of Illinois at Chicago, Chicago, IL, ²University of Illinois, Chicago
Background/Purpose: Gout, the leading cause of inflammatory arthritis, is becoming increasingly prevalent worldwide, affecting both developed and developing countries. This condition results from the deposition…
Abstract Number: 1847 • ACR Convergence 2024
Expression Levels of the ATP-Gated Ion Channel P2RX7 Do Not Predict T Cell Sensitivity to Extracellular ATP and NAD
William Valente¹, Ka Hyun Rhee², Kelsey Wanhainen² and Stephen Jameson², ¹University of Minnesota, Burnsville, MN, ²University of Minnesota, Minneapolis, MN
Background/Purpose: Extracellular NAD+ and ATP are two of the many damage-associated molecular pattern molecules (DAMPs) released at sites of tissue damage which modify activities of…
Abstract Number: L02 • ACR Convergence 2023
Mutational Analysis of UNC93B1 Identifies Regulatory Regions Mutated in Human SLE
John Huizar¹, Victoria Rael², Julian Yano², Leianna Slayden³, Madeleine Weiss⁴, Robert Saxton⁴, Bo Liu⁵, Olivia Majer⁶ and Gregory Barton⁷, ¹UCSF, San Francisco, CA, ²Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, UC Berkeley, Berkeley, CA, ³HHMI at UC Berkeley, Berkeley, CA, ⁴UC Berkeley, Berkeley, CA, ⁵Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shangai, China, ⁶Max Planck Institute for Infection Biology, Berlin, Germany, ⁷UC Berkeley / HHMI, Berkeley, CA
Background/Purpose: Endosomal nucleic acid-sensing toll-like receptors 3, 7 and 9 are key innate immune sensors of dsRNA, ssRNA and ssDNA, respectively, whose activities must be…
Abstract Number: 0729 • ACR Convergence 2023
ROCK1 Orchestrates B-cell Differentiation Under Stress
Juan Rivera-Correa¹, Sanjay Gupta¹, Edd Ricker², Danny Flores-Castro¹, Daniel Jenkins¹, Stephen Vulcano¹, Tania Pannellini¹, Matthew Miele³, Zhuoning Li³, Nahuel Zamponi⁴, Young-Bum Kim⁵, Evgenia Giannopoulou¹, Leandro Cerchietti⁴ and Alessandra Pernis¹, ¹Hospital for Special Surgery, New York, NY, ²Columbia University, New York, NY, ³Memorial Sloan Kettering Cancer Center, New York, NY, ⁴Weill Cornell Medicine, New York, NY, ⁵Beth Israel Deaconess Medical Center, Boston, MA
Background/Purpose: The mechanisms utilized by B cells to execute their differentiation programs when exposed to damaging and stressful environments, which often accompany severe infections and…
Abstract Number: 0731 • ACR Convergence 2023
ZEB2 Acts as a Crucial Transcriptional Regulator Governing Age-Associated B Cell Formation and Pathogenicity in Systemic Lupus Erythematosus
Dai Dai¹, Shuangshuang Gu¹, Xiaxia Han¹, Huihua Ding², Yang Jiang¹, Sheng Chen¹ and Nan Shen², ¹Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University (SJTUSM), Shanghai, China, ²Shanghai Jiao Tong University School of Medicine, Shanghai, China
Background/Purpose: Age-associated B cells (ABCs) accumulate and contribute to the pathogenesis of systemic autoimmune diseases like lupus. Despite recent insights into the ontogeny and function…
Abstract Number: 0793 • ACR Convergence 2023
The Dual Specificity Phosphatase 6 (DUSP6) Regulates Arthritis Severity and IL10 Production
Teresina Laragione, Carolyn Harris, Natasha Rice and Percio Gulko, Icahn school of Medicine at Mount Sinai, New York, NY
Background/Purpose: We have previously identified the Huntingtin-interacting protein-1 (HIP1) as a new gene implicated in the regulation of the rheumatoid arthritis (RA) fibroblast-like synoviocyte (FLS)…
Abstract Number: 0804 • ACR Convergence 2023
Mutated NOD2 Controls IL-2 Production in Blau Syndrome Patients and Mice
Leah M. Huey¹, Emily Vance¹, Holly L. Rosenzweig², Bryce Binstadt³ and Ruth J. Napier², ¹Oregon Health & Science University, Portland, OR, ²Oregon Health & Science University, VA Portland Health Care System, Portland, OR, ³University of Minnesota, Minneapolis, MN
Background/Purpose: Microbial sensing molecule nucleotide-binding oligomerization-domain containing protein 2 (NOD2) is expressed by CD4+ T cells and plays a novel T cell-intrinsic role within CD4+…
Abstract Number: 0964 • ACR Convergence 2023
Systemic Sclerosis (SSc) Dermal Fibroblasts Show Shortened Primary Cilia Due to Aberrant Aurora a Kinase Activation Independently of Transforming Growth Factor β Signalling
Rebecca Wells¹, Rebecca Ross², Alex Timmis¹, Ioanna Georgiou¹, Colin Johnson¹, Natalia Riobo-Del Galdo¹ and Francesco Del Galdo³, ¹University of Leeds, Leeds, United Kingdom, ²Medicine and Health, University of Leeds, Leeds, United Kingdom, ³University of Leeds - Leeds Institute of Rheumatic and Muskuloskeletal Medicine, Leeds, United Kingdom
Background/Purpose: Systemic Sclerosis (SSc) is an autoimmune disorder characterised by abnormal activation of tissue fibroblasts, resulting in tissue and vascular fibrosis of the skin and…

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