Abstracts tagged "Treg cells"

Abstract Number: 0423 • ACR Convergence 2023
Detection of Citrullinated Proteins Recognized by a Novel Chimeric Antigen Receptor TregTherapy in Both Synovial Fluid and Serum from Patients with Rheumatoid Arthritis
Sara Charmsaz¹, Jeff Tracy¹, Elizabeth Whalen¹, John Bui¹, Anne-Renee van der Vuurst de Vries¹, Vivianne Malmström² and Michelle Blake¹, ¹Sonoma Biotherapeutics, Seattle, WA, ²Karolinska Institutet, Stockholm, Sweden
Background/Purpose: Rheumatoid arthritis (RA) is one of the most common autoimmune diseases and despite many therapeutic options, an unmet medical need persists for novel therapies…
Abstract Number: 0799 • ACR Convergence 2023
Human Chimeric Antigen Receptor (CAR)-Tregs Targeting OX40L for Treatment of Systemic Lupus Erythematosus
Holly Wobma¹, Xianliang Rui², Francesca Alvarez-Calderon², Ulrike Gerdemann², Connor McGuckin², Bruce Blazar³, Victor Tkachev⁴ and Leslie Kean², ¹Division of Immunology, Boston Children's Hospital, Boston, MA, ²Division of Hematology-Oncology, Boston Children's Hospital, Boston, MA, ³Division of Pediatric Blood & Marrow Transplant & Cellular Therapy, University of Minnesota, Minneapolis, MN, ⁴Center for Transplantation Sciences, Massachusetts General Hospital, Boston, MA
Background/Purpose: Chimeric Antigen Receptor Regulatory T cells (CAR-Tregs) are an emerging strategy to restore immune tolerance during auto- or allo-immune conditions. However, most autoimmune diseases…
Abstract Number: 0887 • ACR Convergence 2023
Dapagliflozin Modulates Inflammation and Germinal Centers in Lupus by Increasing Regulatory T Cells
Javier Rangel-Moreno¹, Maria de la Luz Garcia-Hernandez², Mary O'Connell³, Daria Krenitsky⁴, Maria Fernanda Ossa-Echeverri¹, Mark Lusco⁵, John Looney⁶ and Jennifer Anolik³, ¹University of Rochester, Rochester, NY, ²University of Rochester, West Henrietta, NY, ³University of Rochester Medical Center, Rochester, NY, ⁴Division of Allergy, Immunology and Rheumatology/University of Rochester Medical Center, Rochester, NY, ⁵Department of Pathology and Laboratory Medicine/University of Rochester, Rochester, NY, ⁶Division of Allergy, Immunology and Rheumtology, Rochester, NY
Background/Purpose: Nephritis is one of the most severe manifestations of lupus, affecting 40-70% of patients. Though immune-targeted therapies have improved, a significant number of patients…
Abstract Number: 1311 • ACR Convergence 2023
T Cell Subset Signatures Predicted Clinical Response to Etanercept-biosimilar Yisaipu in Patients with Rheumatoid Arthritis
Huaqun Zhu¹, Sumei Tang¹, Gong Cheng¹, Yingni Li¹, Yun Li¹, Feng Sun¹, Xiaolin Sun¹, Jiahui Cheng¹, Ru Li¹ and Zhanguo Li², ¹Peking University People’s Hospital, Beijing, China, ²Peking University Health Science Center, Department of Rheumatology and Immunology, People's Hospital, Beijing, China
Background/Purpose: Our study aimed to use machine-learning approaches to characterize the immune cell profiles of patients who were inadequate responders to Etanercept-Biosimilar Yisaipu (Yisaipu-IRs) and…
Abstract Number: 1366 • ACR Convergence 2023
A Unique Cluster of Inflammatory Monocytes and Functionally Intact Regulatory T Cells in Rare Childhood Sjögren’s Disease
Myung-Chul Kim¹, Umasankar De², Nicholas Borcherding³, Joon Paek⁴, Nicole Winn⁵, Indraneel Bhattacharyya⁶, Qing Yu⁷, Ryan Kolb⁸, Theodore Drashansky⁹, Akaluck Thatayatikom¹⁰, Weizhou Zhang⁸ and Seunghee Cha¹¹, ¹Jeju National University, Jeju-si, South Korea, ²University of Florida, Gainesville, FL, ³Washington University School of Medicine in St. Louis, Washington, DC, ⁴Department of Oral & Maxillofacial Diagnostic Sciences, Gainesville, FL, ⁵Division of Oral Medicine, Department of Oral and Maxillofacial Diagnostic Sciences, University of Florida College of Dentistry, Gainesville, FL, ⁶Department of Oral & Maxillofacial Diagnostic Sciences, University of Florida College of Dentistry, Gainesville, FL, ⁷The Forsyth Institute, Cambridge, MA, ⁸Department of Pathology & Immunology, University of Florida, Gainesville, FL, ⁹Cellularity, Inc, Florham Park, NJ, ¹⁰AdventHealth for Children, Orlando, FL, Orlando, FL, ¹¹Department of Oral & Maxillofacial Diagnostic Sciences, University of Florida College of Dentistry and Center for Orphaned Autoimmune Disorders (COAD), Gainesville, FL
Background/Purpose: This study was performed to characterize key immune cell subsets and their interactions in patients with childhood Sjögren's disease (cSjD) for the first time…
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…
Abstract Number: 1756 • ACR Convergence 2023
Circulating CD4+CD25+CD127-FoxP3+CD39+ T Cells Predict the Response to Methotrexate Across Basal Disease Activity Strata in Early Rheumatoid Arthritis
Maria-Eugenia Miranda-Carus¹, Beatriz Nieto-Carvalhal¹, Alejandro Villalba², Laura Nuño¹, Marta Benito-Miguel³, Marta Novella-Navarro⁴, Irene Monjo⁵, Diana Peiteado¹, Sara García-Carazo¹ and Alejandro Balsa⁴, ¹Hospital Universitario La Paz - IdiPAZ, Madrid, Spain, ²Rheumatology Department, La Paz University Hospital, Madrid, Spain, ³Universidad Nebrija, Physiology, Madrid, Spain, ⁴Hospital Universitario La Paz, Madrid, Spain, ⁵University Hospital La Paz, Madrid, Spain
Background/Purpose: A subset of human FoxP3+ regulatory T (Treg) cells expresses CD39 (Treg39+) and hydrolyses proinflammatory adenine nucleotides released at inflammatory foci, rendering the antiinflamatory…
Abstract Number: 2337 • ACR Convergence 2023
Safety and Tolerability of NIM-1324, an Oral, Once-daily LANCL2 Agonist, in a Randomized, Double-Blind, Placebo-Controlled Phase 1 Study in Normal Healthy Volunteers
Andrew Leber, Raquel Hontecillas, Nuria Tubau Juni and Josep Bassaganya-Riera, NIMML Institute, Blacksburg, VA
Background/Purpose: Systemic lupus erythematosus is a complex disease in which the immune system is dysfunctional at multiple levels including impaired regulatory responses, altered self-antigen processing…
Abstract Number: 2444 • ACR Convergence 2023
Development of Engineered Smith-Specific Regulatory T Cells to Treat Lupus Nephritis
Eric Morand¹, Rachel Cheong², Peter Eggenhuizen², Janet Chang², Ashraf Broury², Boaz Ng², Khai Loh², Elean Tay², Chanjuan Shen³, Julie Monk², Yong Zhong⁴, Steven Lim², Jia Xi Chung², Rangi Kandane-Rathnayake⁵, Rachel Koelmeyer², Alberta Hoi⁶, Sarah Snelgrove², Yi Tian Ting² and Joshua Ooi², ¹Monash University, Centre for Inflammatory Diseases, Melbourne, Australia, ²Monash University, Clayton, Australia, ³Central South University, Changsha, China, ⁴Xiangya Hospital, Central South University, Changsha, China, ⁵Monash University, Department of Medicine, Sub-faculty of Clinical and Molecular Medicine, Clayton, Australia, ⁶Monash University, Department of Medicine, Sub-faculty of Clinical and Molecular Medicine, Melbourne, Australia
Background/Purpose: Regulatory T cells (Tregs) play an important role in maintaining immune system homeostasis. Antigen-specific Tregs potently and specifically suppress autoreactivity, suggesting their potential to…
Abstract Number: 0581 • ACR Convergence 2022
Mutants Improving Stability Enhance the Potency of Treg-Selective IL-2 Mutein for the Treatment of Autoimmune Disorders
Yingying Hu¹, Hu Ge¹, Yuxi Yan¹, Yun Zhang², Xiaoxing Huang¹, Zhenna Gao², Yiming Kou², Mi Ye², Lei Zhou¹, Siyuan Shao¹, Bowei Yin¹, Zhenzhen Li¹, Yayuan Fu¹, Wenqing Yang¹, Zhuoxiao Cao¹ and Renhong Tang¹, ¹Simcere Pharmaceutical Group, Shanghai, China, ²Simcere Pharmaceutical Group, Nanjing, China
Background/Purpose: Low-dose IL-2 with enhanced sensitivity to Treg cells has been proved to be safe and efficacious in multiple autoimmune disorders (AIDs) including SLE, RA,…
Abstract Number: 0646 • ACR Convergence 2022
Modulation of Type I IFN Production and Regulatory T Cells by the PKGI/ROCK Signaling Pathway
Ruth Fernandez Ruiz¹, Ilona Nln², Jacqueline Paredes² and Timothy Niewold², ¹Hospital for Special Surgery/Weill Cornell Medicine, New York, NY, ²Hospital for Special Surgery, New York, NY
Background/Purpose: IFNα is a pathogenic factor in SLE. The PRKG1 rs7897633 variant has been previously identified as the top hit in European ancestry patients with…
Abstract Number: 0649 • ACR Convergence 2022
Phosphofructokinase P Fine-Tunes T Regulatory Cell Metabolism, Function and Stability in Systemic Autoimmunity
Marc Scherlinger¹, Wenliang Pan², Ryo Hisada¹, Milena Vukelic³, Masataka Umeda¹, Afroditi Boulougoura², Maria Tsokos¹ and George Tsokos², ¹BIDMC Harvard University, Boston, MA, ²Division of Rheumatology and Clinical Immunology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, ³Albert Einstein College of Medicine, New York, NY
Background/Purpose: Systemic lupus erythematosus (SLE) is characterized by a defective T regulatory (Treg) cell compartment which participate in immune dysregulation. Although the underlying mechanism are…
Abstract Number: 0666 • ACR Convergence 2022
HRES-1/Rab4 Controls the Overexpression of CD38 and Depletion of IL-2 in CD4+ T Cells; Potential Involvement in Proinflammatory Lineage Development in SLE
Seong Hee (Joy) Park¹, Akshay Patel² and Andras Perl³, ¹Upstate Medical University, Syracuse, NY, ²SUNY Upstate Medical University, Syracuse, NY, ³SUNY, Syracuse, NY
Background/Purpose: HRES-1/Rab4 (Rab4A) is a small GTPase that is overexpressed in SLE patient T cells1,2, mediates the enhanced recycling of CD3 and CD4 cell surface…

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