Abstracts tagged "Natural Killer Cells"

Abstract Number: 2443 • ACR Convergence 2025
Mitochondrial dysfunction drives natural killer cell dysfunction in systemic lupus erythematosus
Natalia Fluder¹, Morgane Humbel², Camillo Ribi¹ and Denis Comte¹, ¹Lausanne University Hospital / University of Lausanne, Lausanne, Switzerland, ²Beth Israel Deaconess Medical Center, Harvard Medical School, Boston
Background/Purpose: Systemic lupus erythematosus (SLE) is a chronic autoimmune disease characterized by immune dysregulation and widespread inflammation. Natural killer (NK) cells, essential for immune surveillance,…
Abstract Number: 1876 • ACR Convergence 2025
Targeting the NK cell checkpoint NKG2A promotes lung fibrosis resolution by enhancing immune clearance of senescent myofibroblasts
Wolfgang Merkt¹, Lea Rodon², Franca Sophie Deicher³, Maren Claus⁴, Rachel Lister⁵, Hongwei Han⁵, Yan Zhou⁵, Zhengwang Sun⁵, Arik Horne⁶, Ayla Nadja Stuetz⁷, Michael Kreuter⁸, nicolas kahn⁹, Marc Schneider⁹, Simon Haas¹⁰, Norbert Blank¹¹, Hanns-Martin Lorenz¹², Carsten Watzl⁴, Daniel Hübschmann¹³ and David Lagares⁵, ¹University Hospital Düsseldorf, Düsseldorf, Germany, ²University Hospital Heidelberg, Heidelberg, Hungary, ³Uniklinik Düsseldorf, Düsseldorf, Germany, ⁴IfADo, Leibniz Institute Dortmund, Dortmund, Germany, ⁵Massachusetts General Hospital and Harvard Medical School, Boston, ⁶Charite, Berlin, Berlin, ⁷Department of Rheumatology, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University. Hiller Research Center, University Hospital Düsseldorf, Medical Faculty of Heinrich-Heine University, Düsseldorf, Nordrhein-Westfalen, Germany, ⁸Universitätsmedizin Mainz, Mainz, ⁹Thoraxklinik, Heidelberg University, Heidelberg, Germany, ¹⁰Charite, Berlin, Berlin, Germany, ¹¹University Hospital Heidelberg, Heidelberg, Germany, ¹²Universitétsklinikum Heidelberg, Heidelberg, Germany, ¹³Heidelberg University, Berlin, Germany
Background/Purpose: A key event driving pulmonary fibrosis in interstitial lung disease (ILD) is the accumulation of pathologic senescent myofibroblasts, thought to be promoted by insufficient…
Abstract Number: 1824 • ACR Convergence 2025
Tissue-Resident Natural Killer Cells May Drive Monocyte Differentiation And Macrophage Accumulation In The Inflamed Joints Of Pediatric Juvenile Idiopathic Arthritis Patients
Roselyn Fierkens¹, Jun Inamo², Clara Lin³, Nathan Rogers⁴, Kari Hayes¹, Heather Leach³ and Kentaro Yomogida¹, ¹University of Colorado, Aurora, CO, ²University of Colorado School of Medicine, Aurora, CO, ³Children's Hospital Colorado, Aurora, ⁴Children’s Hospital Colorado, Aurora, CO
Background/Purpose: Natural Killer (NK) cells are the most abundant innate lymphoid cells, accounting for 10–40% of total lymphocytes in peripheral blood. They adapt to diverse…
Abstract Number: 1145 • ACR Convergence 2025
Numerically Reduced but MSU Crystal-Activated NK Cells Promote Osteoclastogenesis in Gout
Ki-Jeong Park¹, Young-Nan Cho², Hye-Mi Jin², Hye-Min Jeong², Sung-Eun Choi³, Ji-Hyoun Kang¹, Dong-Jin Park¹, Tae-jong Kim⁴, Shin-Seok Lee⁵ and Yong-Wook Park⁶, ¹Chonnam National University Hospital, Gwangju, Republic of Korea, ²Chonnam National University Medical School, Gwangju, Republic of Korea, ³Chonnam National University Medical School & Hospital, Gwangju, Republic of Korea, ⁴Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwang-Ju, South Korea, ⁵Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea, ⁶Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, South Korea
Background/Purpose: Gout is an inflammatory arthritis characterized by acute attacks, tophi formation, and bone destruction triggered by inflammatory responses to monosodium urate (MSU) crystals. Natural…
Abstract Number: 1094 • ACR Convergence 2025
Changes in NK cells and TH cell phenotype in Rheumatoid Arthritis patients treated with janus kinase inhibitors: implications for adverse effects
Carmen Lasa Teja¹, Juan José Fernández-Cabero², Alejandra Comins-Boo³, David San Segundo³, Virginia Portilla González⁴, Montserrat Santos-Gomez⁵, José Luis Martín-Varillas⁶, Marcos López-Hoyos³ and Ricardo Blanco⁷, ¹Division of Rheumatology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander, Spain., Riotuerto, Cantabria, Spain, ²Division of Immunology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, Cantabria, Spain, ³Division of Immunology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, Spain, ⁴Division of Rheumatology, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander , Spain, Santander, ⁵Division of Immunology, Hospital Sierrallana. Santander , Spain, Santander, Spain, ⁶Rheumatology Division, Hospital de Laredo. IDIVAL, Immunopathology Group. Santander, Spain., Laredo, Spain, ⁷Rheumatology Division, Hospital Universitario Marqués de Valdecilla, IDIVAL, Immunopathology Group, Santander, Spain, Santander, Cantabria, Spain
Background/Purpose: Janus kinase inhibitors (JAKi) are effective in rheumatoid arthritis (RA); however, concerns regarding safety, particularly the risk of infections and malignancies, have been raised.…
Abstract Number: 0933 • ACR Convergence 2025
Spatial Transcriptomics Reveal Altered Immune Dynamics Regulating Placental Development In a Humanized-TLR8 Mouse Model of Spontaneous Anti-Phospholipid Antibody Induced Pregnancy Loss
Yunwei Xia¹, Paul Hoover², Arnon Arazi³ and Anne Davidson¹, ¹Feinstein Institutes for Medical Research, Manhasset, NY, ²Brigham and Women's Hospital, Boston, MA, ³Feinstein Institutes for Medical Research, Acton, MA
Background/Purpose: TLR8 has been implicated in adverse outcomes of human pregnancy. We previously reported a mouse model of spontaneous aPL-induced pregnancy loss in Sle1 mice…
Abstract Number: 0932 • ACR Convergence 2025
Compartment-specific NK-cell phenotypes reveal distinct maturation and activation states in inflammatory arthritis
Franca Sophie Deicher¹, Tarik Exner², Maren Claus³, Schayan Yousefian⁴, Lea Rodon⁵, sophie leonhardt⁶, Jörg Distler⁷, Carsten Watzl³, Hanns-Martin Lorenz⁸, Simon Haas⁴, Daniel Hübschmann⁹ and Wolfgang Merkt¹⁰, ¹Uniklinik Düsseldorf, Düsseldorf, Germany, ²University Hospital Heidelberg, Heidelberg, Germany, ³IfADo, Leibniz Institute Dortmund, Dortmund, Germany, ⁴Charite, Berlin, Berlin, Germany, ⁵University Hospital Heidelberg, Heidelberg, Hungary, ⁶Heidelberg University, Heidelberg, Germany, ⁷University Hospital Duesseldorf and HHU, Duesseldorf, Germany, ⁸Universitétsklinikum Heidelberg, Heidelberg, Germany, ⁹Heidelberg University, Berlin, Germany, ¹⁰University Hospital Düsseldorf, Düsseldorf, Germany
Background/Purpose: Synovial natural killer (NK) cells contribute to inflammation in arthritis by secreting cytokines and modulating synovial fibroblast activation. The aim of this study is…
Abstract Number: 0039 • ACR Convergence 2025
Hemophagocytic Lymphohistiocytosis Gene Variants in Severe COVID-19 Cytokine Storm Syndrome
randy Cron¹, Abhishek Kamath¹, Mingce Zhang¹, Devin Abhser², Lesley Jackson¹ and Walter Winn Chatham³, ¹University of Alabama at Birmingham, Birmingham, AL, ²Kaiser Permanente Research Bank, Oakland, CA, ³University of Nevada, Las Vegas, Las Vegas, NV
Background/Purpose: Severe COVID-19 infection resulting in hospitalization shares features with frequently fatal cytokine storm syndromes (CSS), such as hemophagocytic lymphohistiocytosis (HLH) and macrophage activation syndrome…
Abstract Number: 0014 • ACR Convergence 2025
NKX019, an allogeneic off-the-shelf CD19 targeting CAR-NK cell therapy, induces deep CD19+ B cell depletion in hematological malignancy and models of autoimmune disease
Mira Tohmé, Meriam Vejiga, Wendy Yu, Emily Kang, Katharine Yu, Jessica Sood, Ivan Chan, Kyle Hansen, David Shook and Phung Gip, Nkarta, South San Francisco, CA
Background/Purpose: Autologous CAR T-cell therapies have remarkable clinical activity in autoimmune disease (AD) via B-cell targeting, with many patients achieving durable, drug-free remission. However, safety…
Abstract Number: L17 • ACR Convergence 2024
Allogenic CD19 CAR NK Cells Therapy in Refractory Systemic Lupus Erythematosus: An Open-label, Single Arm, Prospective and Interventional Clinical Trial
Yiyi Yu¹, Ruina Kong¹, Xia Xu¹, Suxuan Liu¹, Qian Chen¹, Xiaofang Li², Ming Sun², Jianmin Yang¹, Dongbao Zhao¹ and Jie Gao¹, ¹Changhai Hospital, Shanghai, China, ²Rui Therapeutics, Nanjing, China
Background/Purpose: Treatment of systemic lupus erythematosus (SLE) typically necessitates long-term immunosuppression with hormones, immunosuppressants and biologics. CD19-targeting chimeric antigen receptor (CAR) T cells have shown excellent…
Abstract Number: 0004 • ACR Convergence 2024
Beyond Antibodies and CAR-T: Topologically Engineered, Superdimeric Antibody NK Engagers and T Cell Engagers for B Cell Depletion Demonstrating Cooperative Binding to Target and Effector Cells
Daniel Capon, Larisa Troitskaya, Marina Fomin, Brendon Frank, Ursula Edman, Benjamin Capon, Brian Law, Steven Chapin, Gavin Lewis, Malcolm Gefter, Juha Punnonen and Nelson Chan, Hinge Bio, Inc., Burlingame, CA
Background/Purpose: The dramatic demonstration of CD19 CAR-T efficacy in systemic lupus erythematosus (SLE), idiopathic inflammatory myositis, and systemic sclerosis by Georg Schett and colleagues (F.…
Abstract Number: 0060 • ACR Convergence 2024
Spectral Cytometry Shows Increased CD56hi NK Cells and New HLA-DR+CD56+ Phenotypes in RA
Estelle Khairallah¹, Haani Qudsi², Jihad Ben Gabr¹, Andras Perl³ and Christian Geier¹, ¹SUNY Upstate Medical University, Syracuse, NY, ²Norton College of Medicine, Syracuse, NY, ³SUNY, Syracuse, NY
Background/Purpose: Previous studies of RA patients have shown changes in NK cell populations (as defined by CD56 expression). The nature of these cellular changes remains…
Abstract Number: 0952 • ACR Convergence 2024
Single Cell RNA-seq of Scleroderma-associated Interstitial Lung Disease Lung Explants Reveals an Active, Cytotoxic Natural Killer Cell Population
Cristina Padilla, Eleanor Valenzi, Tracy Tabib, Banafsheh Nazari, Patrizia Fuschiotti and Robert Lafyatis, University of Pittsburgh, Pittsburgh, PA
Background/Purpose: Scleroderma-associated interstitial lung disease (SSc-ILD) is the leading cause of death among SSc patients. Loss of alveolar epithelial cells (AEC) and bronchial cell hyperplasia,…
Abstract Number: 0954 • ACR Convergence 2024
Increased Proliferating Natural Killer Cells Exhibit an Aberrant Pro-Inflammatory Gene Signature in Systemic Sclerosis Patients
Pietro Bearzi¹, Elena Pachera², Sophie Wagner³, Astrid Hofman⁴, Lumeng Li⁴, Laura Much⁴, Mike Becker⁵, Kristina Bürki⁴, Luca Navarini⁶, Anna-Maria Hoffmann-Vold⁷, Roberto Giacomelli⁸ and Oliver Distler⁹, ¹Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Schlieren, Switzerland, ²University Hospital Zurich, Zurich, Switzerland, ³University of Zurich, Schlieren, Switzerland, ⁴Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland, ⁵Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zürich, Switzerland, ⁶Rheumatology, Immunology and Clinical Medicine Unit, Department of Medicine, University of Rome "Campus Bio-Medico", Rome, Italy, ⁷Oslo University Hospital, Oslo, Norway, ⁸Rheumatology, Immunology and Clinical Medicine Unit, Department of Medicine, University of Rome "Campus Bio-Medico", Roma, Italy, ⁹Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland, Zurich, Switzerland
Background/Purpose: Recent transcriptomic data suggest a prominent involvement of innate immune cells in the pathogenesis of SSc. In this regard, contrasting data on NK cells…
Abstract Number: 1702 • ACR Convergence 2024
Placental Developmental Defects in a Humanized-TLR8 Mouse Model of Spontaneous Anti-Phospholipid Antibody Induced Pregnancy Loss
Yunwei Xia¹, Naomi I. Maria², Zhengzi Yi³, Chirag Raparia⁴, Gayathri Konanur Gopikrishna¹, Weijia Zhang³ and Anne Davidson², ¹Feinstein Institutes for Medical Research, Manhasset, ²Feinstein Institutes for Medical Research, Manhasset, NY, ³Mt. Sinai School of Medicine, New York, NY, ⁴Donald and Barbara Zucker School of Medicine At Hofstra/Northwell, Shoreham, NY
Background/Purpose: Antiphospholipid antibodies (aPL) confer a high risk for adverse pregnancy outcomes, especially in women with SLE. aPLs can induce pro-inflammatory signaling via TLR8 receptors,…

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