Abstracts tagged "Treg cells"

Abstract Number: 1864 • ACR Convergence 2024
S-4321, a Novel Dual-cell Bidirectional PD-1:FcγRIIb Selective Agonist Antibody for the Treatment of Autoimmune Disease
Julia Manasson¹, Marisella Panduro², Michael Cianci², Minasri Borah², Stephanie Grebinoski², Joshua Vitlip², Stephen Lutz², Ishan Sharma², Elliott Wittenberg², Allison Colthart², Samuel Perry², Maria Cecilia Ramello², Chelsea R. Parker Harp², Jyothsna Visweswaraiah², Ryan Peckner², Alex Pellerin², Heather Vital³, John Sundy⁴, Nathan Higginson-Scott², Kevin L. Otipoby² and Daniela Cipolletta², ¹Seismic Therapeutic, New York, NY, ²Seismic Therapeutic, Watertown, MA, ³Seismic Therapeutic, Lexington, MA, ⁴Seismic Therapeutic, Chapel Hill, NC
Background/Purpose: The dysregulation of immune checkpoint receptors on T cells and antigen presenting cells (APCs) drives autoimmunity while receptor agonism is expected to restore immune…
Abstract Number: 2632 • ACR Convergence 2024
Genetically-engineered Ro-specific Regulatory T Cells to Treat Primary Sjögren’s Disease
Zhi Feng sherman Lim¹, Yi Tian Ting¹, Fabien Vincent², Maureen Rischmueller³, Eric Morand⁴ and Joshua Ooi¹, ¹Monash University-T Cell Therapies Research Group, Clayton, Victoria, Australia, ²Monash University, Clayton, Victoria, Australia, ³RheumatologySA, Adelaide, Australia, ⁴School of Clinical Sciences, Monash University, Melbourne, Victoria, Australia
Background/Purpose: Autoantigen-specific regulatory T cells (Tregs) are potent, and specific, suppressors of pathogenic autoimmunity, and can be harnessed to treat autoimmune disease. In primary Sjögren’s…
Abstract Number: 0092 • ACR Convergence 2024
A New Generation Mesenchymal Stromal Cell (MSC)-based Cell Therapy Using Design of Experiments Halts Pristane Induced Glomerulosclerosis
Hulya Bukulmez¹, Adrienne Dennis², kristine Highland³ and Steven N. Emancipator⁴, ¹MetroHealth Medical Center, Case Western Reserve, Pepper Pike, OH, ²MetroHealth Medical Center, Case Western Reserve, Cleveland, OH, ³Cleveland Clinic Foundation, Cleveland, OH, ⁴Case Western Reserve University, Cleveland, OH
Background/Purpose: MSCs, exposed to a disease-specific cytokine profile, can accurately sense the composition of the inflammatory microenvironment. We have harnessed this adaptive ability of MSCs…
Abstract Number: 0514 • ACR Convergence 2024
Efficacy, Safety and Mechanism of Butyrate in the Treatment of Rheumatoid Arthritis (RA)
Jing He¹, Naidi Wang², Yuhui Li³, Ruoyi Wang², Xiao Tan², Runzhi Zhufeng², Yipeng Han², Hao Li², Yuebo Jin² and Zhanguo Li⁴, ¹Rheumatology, Beijing, China, ²Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing, China, ³Peking University, BeiJing, China, ⁴People’s Hospital Peking University Health Sciences Centre, Beijing, China
Background/Purpose: This study aims to investigate the safety and efficacy of butyrate capsules in treating patients with rheumatoid arthritis (RA) and elucidate the underlying mechanisms.Methods:…
Abstract Number: 0874 • ACR Convergence 2024
Defining a Protective Role for Mucosal-associated Invariant T (MAIT) Cells in Spontaneous Cutaneous Lupus Erythematosus
Grace Crossland¹, Lindsay Mendyka², Michael Constantinides³ and Sladjana Skopelja-Gardner¹, ¹Dartmouth Geisel School of Medicine, Lebanon, NH, ²Dartmouth Hitchcock Memorial Hospital, Lyme, NH, ³Scripps Research Institute, San Diego, CA
Background/Purpose: Systemic lupus erythematosus (SLE) is a leading cause of death in young females, and 70-85% of patients experience skin disease (cutaneous LE, CLE). The…
Abstract Number: 0875 • ACR Convergence 2024
Targeted IL-15 Muteins Provide Selective Expansion of KIR+ CD8 Regulatory T Cells, with the Potential to Ameliorate Disease in Autoimmune Patients with Deficient CD8 Treg Populations
Daniel Patton, Alex Chen, Justin Bowser, Kaelen Encarnacion, Jennifer Gardell, Emily Gilbertson, Susan Julien, Meghan Maurer, Brent Meengs, Nadine Morgan, Allison O'Rourke, Cong Tan, Jon Therriault, Kristine Swiderek and Courtney Crane, Mozart Therapeutics, Seattle, WA
Background/Purpose: CD8 Treg, characterized in human peripheral blood mononuclear cells (PBMC) by expression of inhibitory killer immunoglobulin receptors (KIRs), regulate immune balance by eliminating self-reactive…
Abstract Number: 1797 • ACR Convergence 2024
Characterizing Memory T Cell Subsets Associated with SLE Etiopathogenesis
Carol Nassar¹, Rene Quevedo², M. Teresa Ciudad², Zoha Faheem³, Kieran Manion⁴, Carolina Munoz-Grajales⁵, Michael Kim⁶, Dafna Gladman⁷, Murray Urowitz⁸, Zahi Touma¹, Tracy McGaha⁹ and Joan Wither⁶, ¹University of Toronto, Toronto, ON, Canada, ²Princess Margaret Cancer Centre, Toronto, ON, Canada, ³UHN, Toronto, ON, Canada, ⁴Toronto Western Hospital, Toronto, ON, Canada, ⁵UHN/TWH, Toronto, ON, Canada, ⁶University Health Network, Toronto, ON, Canada, ⁷University of Toronto, Toronto Western Hospital, Toronto, ON, Canada, ⁸Self employed, Toronto, ON, Canada, ⁹University Health Network, University of Toronto, Toronto, ON, Canada
Background/Purpose: Systemic Lupus Erythematosus (SLE) is a chronic autoimmune disease associated with severe morbidity and mortality. Around 70% of SLE patients follow a relapsing-remitting pattern…
Abstract Number: 1835 • ACR Convergence 2024
FoxP3Hi CTLA4+ ICOS+ Regulatory T Cells Are Expanded in Patients with Sarcoidosis but Not Systemic Sclerosis or IgG4-Related Disease
Laura Yockey¹, Thomas Guy², Chinmay Gadiraju³, Ian Doyle¹, Jesse Akaa⁴, Alison Puri⁵, Zachary Wallace⁶, Guy Katz¹, Sydney Montesi¹, John Stone⁷, Flavia Castelino¹, Shiv Pillai⁸, Andrew Luster⁹, Vinay Mahajan³ and Cory Perugino¹, ¹Massachusetts General Hospital, Boston, MA, ²Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, ³Brigham and Women's Hospital, Boston, MA, ⁴Massachussets General Hospital, Boston, MA, ⁵Boston University, Brookline, MA, ⁶Massachusetts General Hospital, Newton, MA, ⁷Massachusetts General Hospital , Harvard Medical School, Concord, MA, ⁸Harvard Medical School, Cambridge, MA, ⁹Massachusetts General Hospital, Charlestown, MA
Background/Purpose: The absence of regulatory T cells (Tregs) results in multiorgan autoimmunity in the context of monogenic “Tregopathies”, but their role in mediating polygenic autoimmune…
Abstract Number: 1845 • ACR Convergence 2024
Treg Expansion and IL-6 Induced STAT3 Phosphorylation in CD4+ T Cells Is a Biomarker of Disease Flare in Rheumatoid Arthritis
Amy Anderson¹, Luke Jones², Fiona Rayner³, Jessica Swift¹, Daniel Maunder¹, Henrique de Paula Lemos¹, David Swan⁴, Abbie Degnan¹, Imogen Wilson¹, Julie Diboll¹, Gary Reynolds¹, Jasmine Sim¹, Andrew Melville⁵, Stefan Siebert⁵, Iain McInnes⁶, Carl Goodyear⁵, Catharien Hilkens¹, Karim Raza⁷, Christopher Buckley⁸, Kenneth Baker¹, Arthur Pratt³, Andrew Filer⁷ and John Isaacs¹, ¹Translational and Clinical Research Institute, NIHR Newcastle Biomedical Research Centre, Newcastle University and The Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom, ²Rheumatology Research Group, Institute for Inflammation and Ageing, NIHR Birmingham Biomedical Research Center and Clinical Research Facility, Birmingham, United Kingdom, ³Translational and Clinical Research Institute, NIHR Newcastle Biomedical Research Centre, Newcastle University and The Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, England, United Kingdom, ⁴Translational and Clinical Research Institute, NIHR Newcastle Biomedical Research Centre, Newcastle University and The Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, ⁵School of Infection and Immunity, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom, ⁶University of Glasgow, College of Medical Veterinary and Life Sciences, Glasgow, United Kingdom, ⁷Rheumatology Research Group, Institute for Inflammation and Ageing, NIHR Birmingham Biomedical Research Center and Clinical Research Facility, University of Birmingham, Birmingham, United Kingdom, ⁸Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom
Background/Purpose: Understanding the mechanisms that drive disease flares in patients with rheumatoid arthritis (RA) may aid in the development of biomarkers to facilitate targeted treatment…
Abstract Number: 1846 • ACR Convergence 2024
Citrullinated Vimentin-reactive Immune-regulatory CD4+CD39+TIGIThi T Cells Expand During Drug Free Remission in HLA-DR Shared-epitope+ ACPA+ Rheumatoid Arthritis
Amy Anderson¹, Henrique de Paula Lemos¹, Hendrik Nel², Sofia Sorbet Santiago¹, Fiona Rayner³, Abbie Degnan¹, Imogen Wilson¹, Julie Diboll¹, Jasmine Sim¹, Andrew Melville⁴, Stefan Siebert⁴, Iain McInnes⁵, Carl Goodyear⁴, Catharien Hilkens¹, Andrew Filer⁶, Karim Raza⁶, Christopher Buckley⁷, Hugh Reid⁸, Kenneth Baker¹, Arthur Pratt³, Jamie Rossjohn⁸, Ranjeny Thomas⁹ and John Isaacs¹, ¹Translational and Clinical Research Institute, NIHR Newcastle Biomedical Research Centre, Newcastle University and The Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom, ²Frazer Institute, The University of Queensland, Translational Research Institute, Brisbane, Australia, ³Translational and Clinical Research Institute, NIHR Newcastle Biomedical Research Centre, Newcastle University and The Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, England, United Kingdom, ⁴School of Infection and Immunity, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom, ⁵University of Glasgow, College of Medical Veterinary and Life Sciences, Glasgow, United Kingdom, ⁶Rheumatology Research Group, Institute for Inflammation and Ageing, NIHR Birmingham Biomedical Research Center and Clinical Research Facility, University of Birmingham, Birmingham, United Kingdom, ⁷Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom, ⁸Department of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, Victoria, Australia, ⁹University of Queensland, Brisbane, Australia
Background/Purpose: There is a need for immunotherapy that sustains symptom remission without ongoing need for disease modifying drugs (DMARDs). In a phase 1b trial of…
Abstract Number: 1848 • ACR Convergence 2024
Characterization of Treg Phenotype, Function and Its Transcriptome Signatures in Treatment-naïve Rheumatoid Arthritis
Vallayyachari Kommoju¹, Sree Nethra Bulusu², Shruthi S Vembar³, Chengappa Kavadichanda⁴, Molly Thabah⁵, Christina Mary Mariaselvam² and Vir Singh Negi⁶, ¹JIPMER, Pondicherry, India, ²JIPMER, Pondicherry, Puducherry, India, ³IGIB, Bengalore, India, ⁴Jawaharlal Institute of Postgraduate Medical Education and Research, pondicherry, Puducherry, India, ⁵Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, Puducherry, India, ⁶AIIMS, Bilaspur, Puducherry, Puducherry, India
Background/Purpose: Inflammatory cytokines in the periphery can affect Treg stability and function by altering its molecular signatures. We aimed to characterize Treg phenotype, function and…
Abstract Number: 1852 • ACR Convergence 2024
Uncovering a MAIT-Treg Axis in Skin UV Response: Implications for Photosensitive Reactions in Cutaneous Lupus Erythematosus
Grace Crossland¹, Lindsay Mendyka², Kaitlyn Dowling³, Michael Constantinides⁴ and Sladjana Skopelja-Gardner¹, ¹Dartmouth Geisel School of Medicine, Lebanon, NH, ²Dartmouth Hitchcock Memorial Hospital, Lyme, NH, ³Dartmouth College, Lebanon, NH, ⁴Scripps Research Institute, San Diego, CA
Background/Purpose: Approximately 80% of cutaneous lupus erythematosus (CLE) patients experience sensitivity to ultraviolet (UV) sunlight rays, which leads to disfiguring skin lesions or systemic disease…
Abstract Number: 1373 • ACR Convergence 2023
Deltex1 May Involve the Function of T Regulatory Cells and Regulate the Disease Activity of Sjögren’s Syndrome
Ming-Han Chen, Division of Allergy, Immunology & Rheumatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
Background/Purpose: Deltex1 is a transcription target of nuclear factor of activated T cells in mice and promotes T cell anergy. We have previously reported that…
Abstract Number: 1560 • ACR Convergence 2023
Decreased Level of Peripheral CLA+ Treg Is a Protective Factor of Nervous System Involvement in Behcet’s Syndrome: A Real-World Study in China
Jiachen Li¹, Feng Sun², Wenyan Zhou¹ and Tian Liu¹, ¹Peking University People's Hospital, Beijing, China, ²Peking University People’s Hospital, Beijing, China
Background/Purpose: Behcet's syndrome (BS) is an autoimmune disease characterized by recurrent mucocutaneous ulcerations, vascular and nervous system involvement. While there have been a lot of…
Abstract Number: 1707 • ACR Convergence 2023
PD1-Expressing Regulatory T Cells Found in Inflamed Joints Suppress Tph Cell-B Cell Interactions
Ki Pui Lam¹, Amélie M Julé¹, Claudia Harris², Maria Taylor¹, Maryrose Hahn², Laurie A Ohlms³, Pui Lee², Margaret Chang⁴, Talal Chatila⁵, Peter Nigrovic⁴ and Lauren Henderson⁴, ¹Division of Immunology, Boston Children’s Hospital, Boston, MA, ²Division of Immunology, Boston Children's Hospital, Boston, MA, ³Department of Otolaryngology & Communication Enhancement, Boston Children’s Hospital, Boston, MA, ⁴Boston Children's Hospital, Boston, MA, ⁵Division of Immunology, Boston Children’s Hospital, Harvard Medical School, Boston, MA
Background/Purpose: T peripheral helper (Tph) cells promote B cell maturation and the generation of antibodies in the inflamed joints of adults with seropositive rheumatoid arthritis…

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