Abstracts tagged "T-Lymphocyte"

Abstract Number: 1705 • ACR Convergence 2022
Peptidoglycan Amplifies CD4+ T Cell Activation by MHCII+ Fibroblast-like Synoviocytes in an in Vitro Model of Lyme Arthritis
Joseph Rouse¹, Amanda Wahhab¹, Rebecca Danner¹, Brandon Jutras², Adam Edelstein³, Klemen Strle⁴ and Robert Lochhead⁵, ¹Medical College of Wisconsin, Milwaukee, WI, ²Virginia Tech, Blacksburg, VA, ³Northwestern Medicine, Chicago, IL, ⁴Wadsworth Center, Albany, NY, ⁵Medical College of Wisconsin, Germantown, WI
Background/Purpose: Lyme arthritis (LA), caused by infection with Borrelia burgdorferi (Bb), is characterized by proliferative synovitis accompanied by dysregulated autoimmune Th1 responses. Fibroblast-like synoviocytes (FLS)…
Abstract Number: 0025 • ACR Convergence 2021
The Modulatory Capacity of Galectin-3 on the Programmed Death-1 Signaling Axis in Rheumatoid Arthritis
Kathrine Pedersen¹, Morten Aagaard Nielsen², Malene Hvid¹, Bent Deleuran¹ and Stinne Greisen¹, ¹Aarhus University, Aarhus, Denmark, ²Aarhus University / Aarhus University Hopital, Aarhus, Denmark
Background/Purpose: Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by inflammation of the synovium. Despite a variety of treatments, 30-40% of RA patients fail…
Abstract Number: 0056 • ACR Convergence 2021
Peripheral Blood Immune Cell Profiling in Psoriatic Arthritis: Comparison of Patients with Healthy Controls
Lihi Eder¹, Darshini Ganatra² and Vinod Chandran³, ¹University of Toronto, Toronto, ON, Canada, ²University Health Network, Toronto, ON, Canada, ³Schroeder Arthritis Institute, Krembil Research Institute, Toronto Western Hospital, Toronto, ON, Canada
Background/Purpose: Heterogeneity in immune cell populations among patients with psoriatic arthritis (PsA) may determine disease expression and treatment response. The objective of this study was…
Abstract Number: 0460 • ACR Convergence 2021
Single-cell Profiling of B and T Cell Repertoire and Gene Expression in the RA Synovium Reveals Tissue Specific Clonal Expansion
Nida Meednu¹, Aaron Wagner², Garett Dunlap³, Fan Zhang⁴, Anna Helena Jonsson⁵, Kevin Wei⁵, Paul Utz⁶, William Robinson⁷, Holden Maecker⁷, Judith James⁸, Joel Guthridge⁸, S. Louis Bridges, Jr.⁹, Vivian Bykerk⁹, Laura Donlin⁹, Susan Goodman⁹, Edward DiCarlo⁹, Christopher Ritchlin¹⁰, Darren Tabechian², James Lederer¹¹, Ellen Gravallese¹², Mandy McGeachy¹³, Gary Firestein¹⁴, David Boyle¹⁵, Peter Gregersen¹⁶, Diane Horowitz¹⁷, Harris Perlman¹⁸, Arthur Mandelin¹⁸, Joan Bathon¹⁹, Laura Geraldino-Pardilla¹⁹, Laura Hughes²⁰, V. Michael Holers²¹, Kevin Deane²², Larry Moreland²¹, Andrew Filer²³, Costantino Pitzalis²⁴, Lindsy Forbess²⁵, Ami Ben-artzi²⁶, Karen Salomon-Escoto²⁷, Soumya Raychaudhuri⁵, Michael Brenner²⁸, Deepak Rao⁵, Andrew McDavid², Jennifer Anolik¹ and Accelerating Medicines Partership (AMP) RA/SLE Network²⁹, ¹University of Rochester Medical center, Rochester, NY, ²University of Rochester, Rochester, NY, ³Harvard University, Somerville, MA, ⁴Harvard Medical School, Boston, MA, ⁵Brigham and Women's Hospital, Boston, MA, ⁶Stanford University, Stanford, CA, ⁷Stanford University, Palo Alto, CA, ⁸Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁹Hospital for Special Surgery, New York, NY, ¹⁰Division of Allergy, Immunology, and Rheumatology, School of Medicine and Dentistry, University of Rochester Medical Center, Rochester, NY, ¹¹Brigham and Women's Hospital and Harvard Medical School, Millis, MA, ¹²Brigham and Women's Hospital, Harvard Medical School, Chestnut Hill, MA, ¹³University of Pittsburgh, Pittsburgh, PA, ¹⁴University of California San Diego, San Diego, CA, ¹⁵University of California San Diego, La Jolla, CA, ¹⁶The Feinstein Institute for Medical Research, Larchmont, NY, ¹⁷Northwell Health, Jericho, NY, ¹⁸Northwestern University, Chicago, IL, ¹⁹Columbia University, New York, NY, ²⁰University of Alabama at Birmingham, Birmingham, AL, ²¹University of Colorado, Denver, CO, ²²University of Colorado Denver, Denver, CO, ²³University of Birmingham, Birmingham, United Kingdom, ²⁴Queen Mary University of London, London, United Kingdom, ²⁵Cedars-Sinai Medical Center, Los Angeles, CA, ²⁶Cedars-Sinai Medical Center, Beverly Hills, CA, ²⁷University of Massachusetts Medical School, Shrewsbury, MA, ²⁸Brigham and Women's Hospital, Harvard Medical School, Newton, MA, ²⁹Brigham and Women's Hospital, Everett, MA
Background/Purpose: B cell and T cell activation pathways in the synovium are an incompletely understood feature of rheumatoid arthritis. In this study, utilizing single cell…
Abstract Number: 0547 • ACR Convergence 2021
Autologous Haematopoietic Stem Cell Transplantation for Systemic Sclerosis Results in Sustained Changes in Immunoregulatory T and NK Cells
Ross Penglase, Malini Visweswaran, John Zaunders, Laila Girgis, David Ma and John Moore, St Vincent's Hospital, Sydney, Australia
Background/Purpose: Autologous Haematopoietic Stem Cell Transplantation (AHSCT) is an effective treatment for severe systemic sclerosis (SSc). To date, mechanistic studies have indicated possible pro-regulatory and…
Abstract Number: 1096 • ACR Convergence 2021
CSF-specific CD8 T Cell Clonal Expansion in Neurosarcoidosis
Michael Paley¹, Brandi Baker², Steven Dunham³, Nicole Linskey³, Elisha Roberson³, David Clifford³ and Wayne Yokoyama³, ¹Washington University in St. Louis, Olivette, MO, ²Washington University in St. Louis, St. Louis, MO, ³Washington University School of Medicine, St. Louis, MO
Background/Purpose: Neuroinflammation is a severe manifestation of the systemic inflammatory disorders. Sarcoidosis, which leads to neurologic disease in 5-10 % of cases, has traditionally been…
Abstract Number: 1407 • ACR Convergence 2021
Characterization of Synovial Fluid T Cells in Polymyalgia Rheumatica: Implication of Th1 and Tc1 Effector Memory Profiles
Rosanne Reitsema¹, Lieske Wekema², Wayel Abdulahad¹, Peter Heeringa³, Minke Huitema¹, Maria Sandovici³, Annemieke Boots³, Elisabeth Brouwer³ and Kornelis van der Geest³, ¹Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands, ²Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands, ³University Medical Center Groningen, Groningen, Netherlands
Background/Purpose: Polymyalgia Rheumatica (PMR) is a common rheumatic inflammatory disease in the elderly. PMR is characterized by synovial inflammation of (peri)articular structures in the shoulders…
Abstract Number: 1480 • ACR Convergence 2021
LncRNA XIST Alters the Balance of Peripheral Blood Immune Cells in Systemic Lupus Erythematosus by Regulating the miR-17-92/OFLM4 and CEACAM8 Axis
Qi Cheng, Mo Chen, xin Chen, peiyu zhang, huaxiang wu and yan du, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (People's Republic)
Background/Purpose: X-inactive-specific transcript (XIST) has been shown to silence linked genes on the X chromosome that may be related to the pathogenesis of systemic lupus…
Abstract Number: 1513 • ACR Convergence 2021
Control of T Cell Tolerance by the NR4A Family of Nuclear Receptors
Ryosuke Hiwa¹, Hailyn Nielsen¹, James Mueller¹ and Julie Zikherman², ¹University of California San Francisco, San Francisco, CA, ²UCSF Medical Center, San Francisco, CA
Background/Purpose: Current therapies for autoimmune disease often lead to treatment-limiting immunosuppression. Selective manipulation of antigen (Ag)-specific immune responses could enhance our therapeutic approach. Targeting members…
Abstract Number: 0998 • ACR Convergence 2020
Differential Roles of TNFRI and TNFRII in the Morphology of Secondary Lymphoid Organs
Kim Jeucken¹, Jan Piet van Hamburg¹ and Sander Tas², ¹Amsterdam Rheumatology and Immunology Center (ARC), Department of Rheumatology and Clinical Immunology, Department of Experimental Immunology and Amsterdam Infection and Immunity Institute, Amsterdam UMC; location AMC, University of Amsterdam, Netherlands, Amsterdam, Netherlands, ²Amsterdam Rheumatology and Immunology Center (ARC), Department of Rheumatology and Clinical Immunology, Department of Experimental Immunology and Amsterdam Infection and Immunity Institute, Amsterdam UMC; location AMC, University of Amsterdam, Netherlands, Utrecht, Netherlands
Background/Purpose: Tumour necrosis factor (TNF) induced signaling events are important in lymphoid organ development and function, both in health and in immune-mediated inflammatory diseases such…
Abstract Number: 1403 • ACR Convergence 2020
Differential Effect of Abatacept vs TNF Blockers, on the Frequency of Circulating Follicular Helper (Tfh) and Periperal Helper (Tph) T Cells in Rheumatoid Arthritis
María-José Santos-Bornez¹, Paula Fortea-Gordo¹, Laura Nuño¹, Alejandro Villalba¹, Diana Peiteado¹, Irene Monjo², Alejandro Balsa³ and Maria-Eugenia Miranda-Carus¹, ¹Hospital La Paz - IdiPAZ, Madrid, Spain, ²Rheumatology, La Paz University Hospital- IdiPAZ, Madrid, Spain, ³Rheumatology, La Paz University Hospital-IdiPAZ, Madrid, Spain
Background/Purpose: CXCR5+PD-1hi follicular helper (Tfh) and CXCR5-PD-1hi peripheral helper (Tph) T cells play an important role in the pathogenesis of Rheumatoid Arthritis (RA) by providing…
Abstract Number: 1415 • ACR Convergence 2020
Murine Roseolovirus Induces Autoimmune Disease and Development of Autoreactive T Cells and Autoantibodies
Tarin Bigley¹, Jose Saenz², Li-Ping Yang², Jason Mills² and Wayne Yokoyama², ¹Washington University in St. Louis, Saint Louis, MO, ²Washington University in St. Louis, St. Louis, MO
Background/Purpose: Murine roseolovirus (MRV) is a recently sequenced beta-herpesvirus that is a natural murine pathogen and is genetically highly related to HHV6 and HHV7. The…
Abstract Number: 1581 • ACR Convergence 2020
Neutrophil to Lymphocyte Ratio as a Predictor of Immune-Related Adverse Events in CTLA-4 Treated Patients: A Retrospective Review
Michael Cunningham¹, Carolina Alvarez², Shruti Saxena Beem³, Todd Schwartz⁴ and Rumey Ishizawar⁵, ¹UNC Hospitals, Durham, NC, ²University of North Carolina at Chapel Hill Thurston Arthritis Research Center, Miami, FL, ³University of North Carolina at Chapel Hill, Chapel Hill, ⁴University of North Carolina-Chapel Hill, Chapel Hill, NC, ⁵University of North Carolina at Chapel Hill, Chapel Hill, NC
Background/Purpose: Immune checkpoint inhibitors (ICIs) target checkpoint proteins PD-1/PD-L1 and CTLA-4 to activate and enhance the cytotoxic effects of T lymphocytes against tumor cells [1-2].…
Abstract Number: 1824 • ACR Convergence 2020
Selective Expansion of Regulatory T Cells in Patients with Systemic Lupus Erythematosus by a Novel IL-2 Conjugate, NKTR-358
Christie Fanton¹, Richard Furie², Neha Dixit¹, Cat Haglund¹, Lin Lu¹, Suresh Siddhanti¹, Vishala Chindalore³, Robert Levin⁴, Isam Diab⁵, Brian Kotzin¹ and Jonathan Zalevsky¹, ¹Nektar Therapeutics, San Francisco, CA, ²Division of Rheumatology, Northwell Health, Great Neck, NY, ³Pinnacle Research Group, Anniston, AL, ⁴Clinical Research of West Florida, Clearwater, FL, ⁵Paramount Medical Research and Consulting, Middleburg Heights, OH
Background/Purpose: Treg dysfunction and impaired IL-2 production have been implicated as key immunological defects in the breakdown of immune self-tolerance in SLE. Low-dose IL-2 can…
Abstract Number: 1861 • ACR Convergence 2020
T Cells with IL-17A+ Signature in Psoriatic Arthritis Are of Different Subpopulations and Are Polyfuntional
Siba Raychaudhuri¹ and Smriti Raychaudhuri², ¹Division of Rheumatology, Allergy & Clinical Immunology, University of California School of Medicine, Davis, and VA Medical Center Sacramento, Sacramento, CA, ²VA Sacramento Medical Center, Davis, CA
Background/Purpose: A variety of T cells such as Th1, Th2, Th9, Th17, NKT, MAIT, etc have been attributed to multiple autoimmune diseases. In psoriatic arthritis…

All abstracts accepted to ACR Convergence are under media embargo once the ACR has notified presenters of their abstract’s acceptance. They may be presented at other meetings or published as manuscripts after this time but should not be discussed in non-scholarly venues or outlets. The following embargo policies are strictly enforced by the ACR.

Accepted abstracts are made available to the public online in advance of the meeting and are published in a special online supplement of our scientific journal, Arthritis & Rheumatology. Information contained in those abstracts may not be released until the abstracts appear online. In an exception to the media embargo, academic institutions, private organizations, and companies with products whose value may be influenced by information contained in an abstract may issue a press release to coincide with the availability of an ACR abstract on the ACR website. However, the ACR continues to require that information that goes beyond that contained in the abstract (e.g., discussion of the abstract done as part of editorial news coverage) is under media embargo until 10:00 AM ET on November 14, 2024. Journalists with access to embargoed information cannot release articles or editorial news coverage before this time. Editorial news coverage is considered original articles/videos developed by employed journalists to report facts, commentary, and subject matter expert quotes in a narrative form using a variety of sources (e.g., research, announcements, press releases, events, etc.).

Violation of this policy may result in the abstract being withdrawn from the meeting and other measures deemed appropriate. Authors are responsible for notifying colleagues, institutions, communications firms, and all other stakeholders related to the development or promotion of the abstract about this policy. If you have questions about the ACR abstract embargo policy, please contact ACR abstracts staff at [email protected].