Abstracts tagged "Immune regulation"

Abstract Number: 1920 • 2015 ACR/ARHP Annual Meeting
Differential Production of Th17-Related Cytokines By Toll like Receptor (TLR)-Ligands-Stimulated Monocyte-Derived Dendritic Cells (Mo-DCs) from Systemic Sclerosis (SSc) Patients; Relevance of IL-22 and IL-33 According to Disease Subtype and Stage
Tatiana Sofia Rodriguez-Reyna¹, Adrián Caballero¹, Luís Jiménez-Álvarez², Gustavo Ramirez², José Eduardo Márquez García², Alfredo Cruz Lagunas³, Guadualupe Lima⁴, Janette Furuzawa-Carballeda⁵, Luis Llorente¹ and Joaquin Zuniga⁶, ¹Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico, ²Immunology, Instituto Nacional de Enfermedades Respiratorias, Mexico City, Mexico, ³Immunology, Instituto Nacional de Enfermedades Respiratorias, Mexico, Mexico, ⁴Immunology and Rheumatology, Instituto Nacional de Ciencias Medicas y Nutricion, Mexico City, Mexico, ⁵Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico city, Mexico, ⁶Immunology, Instituo Nacional de Enfermedades Respiratorias Ismael Cosio Villegas, Mexico, Mexico
Background/Purpose: Systemic sclerosis (SSc) patients exhibit alterations in innate and acquired cellular responses including an enhanced inflammatory response to toll like receptor (TLR) agonists that…
Abstract Number: 1947 • 2015 ACR/ARHP Annual Meeting
Hypermethylation of Treg-Specific Demethylated Regions in the Ikaros Transcription Factor Family Members, Helios and Eos, in Rheumatoid Arthritis Tregs
Alla Skapenko¹, Viktoria Soentgerath¹, Sonja Haupt², Jan Leipe¹ and Hendrik Schulze-Koops¹, ¹Division of Rheumatology and Clinical Immunology, University of Munich, Munich, Germany, ²Division of Rheumatology and Clinical Immunology, Med.Klinik und Poliklinik IV, University of Munich, Munich, Germany
Background/Purpose: Foxp3 is the signature transcription factor of regulatory T cells (Tregs) and facilitates many of the characteristic functions of Tregs. Members of the Ikaros…
Abstract Number: 2138 • 2015 ACR/ARHP Annual Meeting
Safety and Efficacy Results of a Phase 2, Double-Blind, Placebo-Controlled Clinical Study of Duvelisib with Background Methotrexate (MTX) in Adults with Moderate-to-Severe Rheumatoid Arthritis (RA)
Richard Leff¹, Sunil Kumar², Natalia Nikulenkova³, Igor Kaidashev⁴, Kerstin Allen⁵, Joi Dunbar⁶, Howard Stern⁷, Julian Adams⁶ and Michael Weinblatt⁸, ¹Clinical Research, Infinity Pharmaceuticals, Inc., Cambridge, MA, ²Centre for Clinical Research and Effective Practice (CCRep), Auckland, New Zealand, ³State Budgetary Healthcare Institution of Vladimir Region, Regional Clinical Hospital, Vladimir, Russia, ⁴City Clinical Hospital #1 of Poltava City, Poltava, Ukraine, ⁵Biostatistics, Infinity Pharmaceuticals, Inc., Cambridge, MA, ⁶Infinity Pharmaceuticals, Inc., Cambridge, MA, ⁷Translational Science, Infinity Pharmaceuticals, Inc., Cambridge, MA, ⁸Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital, Boston, MA
Background/Purpose: Duvelisib is a potent, oral, dual inhibitor of phosphoinositide-3-kinase (PI3K)-δ,γ being developed for hematologic malignancies, and was also explored in early phase studies in…
Abstract Number: 2563 • 2015 ACR/ARHP Annual Meeting
Immune Regulation By Migrating Mesenchymal Stem Cells Ameliorate Inflammatory Arthritis in Mice
Seung Min Jung, Yoojun Nam and Ji Hyeon Ju, Division of Rheumatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
Background/Purpose: Mesenchymal stem cells (MSCs) function as immune regulators in inflammatory conditions. However, it is unclear how to control local inflammation by systemically administered MSCs. We…
Abstract Number: 2812 • 2015 ACR/ARHP Annual Meeting
Cytokine Secretion By Peripheral Blood Mononuclear Cells in Patients with Axial Spondyloarthritis and the Effect of Thymoquinone on Cytokine Profile
Erkan Kilic¹, Cagri Sakalar², Huriye Aksu³, Mustafa Cakir³, Gamze Kilic¹ and Salih Ozgocmen⁴, ¹Dept. PRM, Erciyes University, Faculty of Medicine,Division of Rheumatology, Kayseri, Turkey, ²Genome and Stem Cell Center (GEN-KOK), Erciyes University, Faculty of Medicine, Medical Biology, Kayseri, Turkey, ³Genome and Stem Cell Senter (GEN-KOK), Erciyes University, Faculty of Medicine, Medical Biology, Kayseri, Turkey, ⁴Dept.PRM, Erciyes University, Faculty of Medicine,Division of Rheumatology, Kayseri, Turkey
Background/Purpose: Axial spondyloarthritis (axSpA) defines a group of chronic inflammatory diseases which includes non-radiographic axSpA (nr-axSpA) who do not have definite sacroiliitis on pelvic X-rays.…
Abstract Number: 2828 • 2015 ACR/ARHP Annual Meeting
Profiling Immunogenic Bacteria within the Microbiota of ZAP-70 Mutant SKG Mice Associated with Spondyloarthritis and Ileitis Using IgA-SEQ
Linda Rehaume¹, Alicia Kang¹, Olga Zbarskaya¹, Jane Mullaney¹, Matthew Kim¹, Paraic O Cuiv¹, Nicola Angel², Philip Hugenholtz², Mark Morrison¹ and Ranjeny Thomas¹, ¹Translational Research Institute, The University of Queensland Diamantina Institute, Brisbane, Australia, ²Australian Centre for Ecogenomics, The University of Queensland, Brisbane, Australia
Background/Purpose: IgA production is the main barrier mechanism of mucosal surfaces. High affinity IgA is generated through T cell-dependent mechanisms and preferentially binds to invasive…
Abstract Number: 3192 • 2015 ACR/ARHP Annual Meeting
KCa3.1 Ion Channel in the Pathogenesis of Rheumatoid Arthritis: KCa3.1-/- Mice Do Not Develop CIA
Siba Raychaudhuri¹, Smriti K. Raychaudhuri² and Heike Wulff³, ¹Med/Rheumatology, Univ California Davis/VA Sacramento, Davis, CA, ²Rheumatology/Immunology, VA Sacramento Medical Center, Davis, CA, ³Pharmacology, UC Davis School of Medicine, Davis, CA
Background/Purpose: KCa3.1 is a Ca2+-activated K+ channel that modulates Ca2+-dependent signaling processes such as activation and cellular proliferation. KCa3.1 is expressed in CCR7+ naïve and…
Abstract Number: 2743 • 2014 ACR/ARHP Annual Meeting
CD27 Is a Key Regulator of T Cell Responses
Michael Scully¹, Nicole Wunderler², Holger Babbe¹, Yevgeniya Orlovsky², Galina Obmolova³, Ann Cai¹, Heath Guay⁴, Jacqueline Benson⁴ and Tatiana Ort¹, ¹Research Immunology, Immunology Research, Janssen Research and Development, LLC, Spring House, PA, ²Immunology Research, Janssen Research and Development, LLC, Spring House, PA, ³Biologics Research, Janssen Research and Development, LLC, Spring House, PA, ⁴Estrela Lupus Venture, Janssen Research and Development, LLC., Spring House, PA
Background/Purpose: CD27 is a member of the TNF superfamily of receptors that is expressed on a majority of natural killer (NK) cells, T cells, memory…
Abstract Number: 2359 • 2014 ACR/ARHP Annual Meeting
CGEN-15001, a Novel Immunomodulatory Fusion Protein of the B7 Family Induces Immune Tolerance and Shows Efficacy in Mouse Models of Rheumatoid Arthritis and Psoriasis
Iris Hecht¹, Kay McNamee², Aviad Keren³, Joseph R. Podojil⁴, Ilan Vaknin¹, Anat Oren¹, Galit Rotman¹, Eyal Neria¹, Stephen D. Miller⁴, Amos Gilhar³ and Richard O. Williams², ¹Compugen Ltd., Tel Aviv, Israel, ²Kennedy Institute of Rheumatology, Oxford University, Oxford, United Kingdom, ³Technion Institute of Technology, Haifa, Israel, ⁴Microbiology-Immunology, Northwestern University, Chicago, IL
Background/Purpose CGEN-15001 is an Fc-fusion protein consisting of the extracellular domain of a novel B7-like protein, discovered based on shared family characteristics. CGEN-15001 inhibits T…
Abstract Number: 665 • 2014 ACR/ARHP Annual Meeting
Safety and Efficiency of Low-Dose Interleukin-2 Treatment in Systemic Lupus Erythematosus
Jing He¹, Xia Zhang², Xiaolin Sun³, Jianping Guo³, Yunbo Wei⁴, Zhaohua Hou⁴, Yu Di⁵ and Zhanguo Li³, ¹Department of Rheumatology & Immunology, Peking University People's Hospital, Beijing, China, ²Department of Rheumatology & immunology, Peking University People's Hospital, Beijing, China, ³Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China, ⁴Immunology for Environment and Health, Shandong Analysis and Test Center, Shandong Academy of Science, Shandong, China, ⁵Molecular Immunomodulation Laboratory, Monash University, Clayton, Austria
Background/Purpose Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by loss of tolerance to nuclear self-antigens, production of pathogenic autoantibodies and damage tomultiple organs.…
Abstract Number: 531 • 2014 ACR/ARHP Annual Meeting
Expression of Indoleamine 2,3 Dioxygenase-1 and -2 in Focal Sialoadenitis of Patients with Sjögren’s Syndrome
Claudio Vitali¹, Antonina Prafioriti², Domenico Sambataro³, Andrea Di Bernardo², Elisabetta Admiraglio², Saba Nayar⁴, Francesca Barone⁴ and Nicoletta Del Papa³, ¹Rheumatology Section, Istituto San Giuseppe, Como, Italy, ²Pathology Unit, Istituto G.Pini, Milan, Italy, ³Rheumatology Unit, Istituto G.Pini, Milan, Italy, ⁴Rheumatology Research Group, University of Birmingham Research Laboratories, University of Birmingham, Birmingham, United Kingdom
Background/Purpose The role of indoleamine 2,3 dioxygenase 1 and 2 (IDO1-IDO2) enzymes in modulating the immune response has not been so far completely clarified. IDO1…
Abstract Number: 340 • 2014 ACR/ARHP Annual Meeting
Role of Beta-Catenin Signaling to Control Dendritic Cell Function in Collagen-Induced Arthritis
Celso Henrique Alves^1,2, Julia L. Ober-Blöbaum³, Inge Brouwers-Haspels^1,2, Patrick S. Asmawidjaja^1,2, Anne-Marie Mus^1,2, Björn E. Clausen³ and Erik Lubberts^2,4, ¹Rheumatology, Erasmus MC, University Medical Center, Rotterdam, Netherlands, ²Immunology, Erasmus MC, University Medical Center, Rotterdam, Netherlands, ³Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany, ⁴Erasmus Medical Center, Rheumatology, Rotterdam, Netherlands
Background/Purpose Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic inflammation and synovial infiltration of immune cells. T-cell priming by activated dendritic cells (DCs)…
Abstract Number: 1640 • 2013 ACR/ARHP Annual Meeting
Methotrexate Treatment Affects Effector, But Not Regulatory T Cells in Juvenile Idiopathic Arthritis
Maja Bulatovic Calasan¹, S.J. Vastert², Rianne C. Scholman³, Frederik Verweij³, Mark Klein³, Nico M. Wulffraat⁴, Berent J. Prakken³ and Femke van Wijk³, ¹Paediatric Rheumatology, University Medical Center Utrecht, Utrecht, Netherlands, ²Pediatric Rheumatology, University Medical Center Utrecht, Utrecht, Netherlands, ³University Medical Center Utrecht, Utrecht, Netherlands, ⁴Pediatric Immunology, University Medical Center Utrecht, Utrecht, Netherlands
Background/Purpose: The balance between regulatory (Treg) and effector T cells (Teff) is crucial for immune regulation in juvenile idiopathic arthritis (JIA). How methotrexate (MTX), the…
Abstract Number: 1590 • 2013 ACR/ARHP Annual Meeting
A CD8 T Cell-IFN-γ-IDO Axis Is Required For Mesenchymal Stem Cell Suppression Of Human SLE
Dandan Wang¹, Lin Lu², Xuebing Feng³, Xia Li² and Lingyun Sun³, ¹The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China, ²Department of Rheumatology and Immunology, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China, ³Department of Rheumatology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
Background/Purpose: Stem cell-based regenerative medicine is a promising approach in tissue reconstruction. Mesenchymal stem cells (MSC) show therapeutic effects on human autoimmune diseases including systemic…
Abstract Number: 571 • 2013 ACR/ARHP Annual Meeting
Protective Effect Of Inducible Adeno-Associated Virus Mediated IL-2 Gene Therapy On Tissue Damages In Lupus-Prone Mice
Masayuki Mizui¹, Tomohiro Koga², Linda Lieberman³, Jessica Beltran³, Mark C. Johnson⁴, José C. Crispin², Roland Tisch⁴ and George C. Tsokos⁵, ¹Division of Rheumatology, Department of Medicine,, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, ²Medicine/Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, ³Division of Rheumatology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, ⁴Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, ⁵Rheumatology, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, MA
Background/Purpose: IL-2 plays critical roles not only in immune responses but also in peripheral tolerance. Impairment of IL-2 production has been linked to the development…

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