Abstracts tagged "flow cytometry"

Abstract Number: 621 • 2019 ACR/ARP Annual Meeting
The Use of Microbial Flow Cytometry to Analyze the Intestinal and Oral Microbiota
Patrick Stauffer¹, Mark Klick ¹, Tammy Martin ¹, James T. Rosenbaum ² and Mark Asquith ¹, ¹Oregon Health and Science University, Portland, OR, ²Devers Eye Institute and Oregon Health & Science University, Portland, OR
Background/Purpose: The role of the microbiome in the pathogenesis of autoimmune disorders such as axial spondyloarthritis (SpA) has been well-established through means of describing gross…
Abstract Number: 2116 • 2018 ACR/ARHP Annual Meeting
Neutrophil Extracellular Trap Formation Is Dependent on Disease Activity in Systemic Lupus Erythematosus: Determination Using a Flow Cytometry-Based Assay
Sen Hee Tay¹, Olga Zharkova², Hui Yin Lee³, Shubhita Tripathi⁴, Wei Yee Ong⁵, Aisha Lateef⁶, Paul MacAry⁷, Lina Lim², John Edward Connolly⁸ and Anna-Marie Fairhurst³, ¹Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore, Singapore, ²Physiology, National University of Singapore, Singapore, Singapore, ³Singapore Immunology Network, Agency for Science, Technology and Research, Singapore, Singapore, ⁴National University of Singapore, Singapore, Singapore, ⁵Institute for Molecular and Cellular Biology, Agency for Science, Technology and Research, Singapore, Singapore, ⁶Medicine, Division of Rheumatology, National University Hospital of Singapore, Singapore, Singapore, ⁷Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore, ⁸Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore, Singapore
Background/Purpose: Neutrophil extracellular traps (NETs) are composed of decondensed DNA that is released during an active cell death program is known as NETosis. To date,…
Abstract Number: 63 • 2018 ACR/ARHP Annual Meeting
TNF-α Blockade Incompletely Reverses Inflammatory Pulmonary Pathology in the TNF-Transgenic Mouse Model of Rheumatoid Arthritis
Emily Wu¹, Richard Bell², Edward Schwarz³ and Homaira Rahimi⁴, ¹Department of Immunology, Microbiology, and Virology, University of Rochester, Rochester, NY, ²Center for Musculoskeletal Research, University of Rochester, Rochester, NY, ³Orthopedeatrics, University of Rochester, Rochester, NY, ⁴Rheumatology, University of Rochester/Golisano Children's Hosp, Rochester, NY
Background/Purpose: Interstitial lung disease (ILD) is a significant contributor to rheumatoid arthritis (RA) mortality, yet its pathogenesis remains enigmatic. One theory posits that initial inflammatory…
Abstract Number: 584 • 2018 ACR/ARHP Annual Meeting
Changes in CD4+ T and B Cell Profile As Indicator of Clinical Remission to TNF Inhibitors in Patients with Rheumatoid Arthritis
Borja Hernández-Breijo^1,2, Israel Gañán-Nieto³, Cristina Sobrino³, Victoria Navarro-Compán¹, Ana Martínez^1,2, Carlota García-Hoz³, Javier Bachiller³, María Gema Bonilla Hernán^1,4, Garbiñe Roy⁵, Mónica Vázquez³, Alejandro Balsa^1,6, Luisa María Villar³, Dora Pascual-Salcedo¹, Eulalia Rodríguez-Martín³ and Chamaida Plasencia^1,4, ¹Immuno-Rheumatology research group, IdiPaz. La Paz University Hospital, Madrid, Spain, ²Immunology. La Paz University Hospital, Madrid, Spain, ³Immuno-Rheumatology research group, IRYCIS. Ramón y Cajal University Hospital, Madrid, Spain, ⁴Rheumatology, La Paz University Hospital, Madrid, Spain, ⁵Immunology. Ramón y Cajal University Hospital and IRYCIS, Madrid, Spain, ⁶Hospital Universitario La Paz, Madrid, Spain
Background/Purpose: TNF inhibitors (TNFi) are widely used for the treatment of rheumatoid arthritis (RA). This study aims to analyse the profile of peripheral blood mononuclear…
Abstract Number: 849 • 2018 ACR/ARHP Annual Meeting
Constructing a Macrophage Infiltration Timeline in a Murine Model of Osteoarthritis
Cheng Zhou^1,2, Vu Nguyen^1,3, Nisha Sambamurthy^1,2, Michael Dodge^1,4 and Carla Scanzello^1,2, ¹Translational Musculoskeletal Research Center, CMC Veterans Affairs Medical Center, Philadelphia, PA, ²Division of Rheumatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, ³University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, ⁴Department of Orthopaedic Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
Background/Purpose: Macrophage infiltration in synovium (SM) and intraarticular fat pads (FP) is common in Osteoarthritis (OA), and can contribute to catabolic cytokine and protease production…
Abstract Number: 1170 • 2017 ACR/ARHP Annual Meeting
High Output Flow Cytometry Array Classifies Subjects with Uveitis Due to Behcet’s Disease and Sarcoidosis
Johannes Nowatzky¹, Ezra Resnick², Julia Manasson³, Cristy Stagnar¹ and Olivier Manches⁴, ¹Department of Medicine, Division of Rheumatology, NYU School of Medicine, New York, NY, ²Google Inc., New York, NY, ³Department of Medicine, Division of Rheumatology, New York University School of Medicine, New York, NY, ⁴EFS Rhône-Alpes-Auvergne "Immunobiology and Immunotherapy in Chronic Diseases", INSERM - French National Institute of Health and Medical Research, Grenoble, France
Background/Purpose: The information content of multi-parametric flow cytometry-based immune-phenotyping experiments is routinely underexploited given the paucity of adequate tools and strategies for large-scale unbiased data…
Abstract Number: 2328 • 2017 ACR/ARHP Annual Meeting
Characterisation of Lipid Mediator Profile and Immune Cells in Synovial Fluid of Juvenile Idiopathic Arthritis
Johannes Hendrick von Hegedus¹, Q. S. R. Madari², P.C.E. Hissink Muller³, M. Kloppenburg⁴, REM Toes⁴, Martin Giera⁵, TWJ Huizinga⁴, Rebecca ten Cate⁶ and A. Ioan-Facsinay⁴, ¹Department of Rheumatology, LUMC, Leiden, Netherlands, ²LUMC, Leiden, Netherlands, ³Willem-Alexander Children's Hospital, LUMC, Leiden, Netherlands, ⁴Rheumatology, Leiden University Medical Center, Leiden, Netherlands, ⁵Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, Netherlands, ⁶Leiden University Medical Center, Leiden, Netherlands
Background/Purpose: Juvenile Idiopathic Arthritis (JIA) is often accompanied by inflammation of the joints. The mechanisms involved in the inflammation in JIA are incompletely understood. Several…
Abstract Number: 760 • 2016 ACR/ARHP Annual Meeting
Effects of Type I Interferon Inhibition on Blood Leukocyte Subsets in Patients Treated in a Phase IIb Clinical Study of Anifrolumab in SLE
Geoffrey Stephens¹, Rong Zeng², Xiang Guo², Steve Eck³, Yuling Wu³, Liangwei Wang³, Gabor Illei³ and Wendy White², ¹Cellcion, Clarksburg, MD, ²Translational Sciences, MedImmune, LLC, Gaithersburg, MD, ³MedImmune, LLC, Gaithersburg, MD
Background/Purpose: A Phase IIb randomized controlled study (NCT01753193) was conducted with anifrolumab, a fully human, anti-interferon (IFN)–α receptor (IFNAR1) specific antibody in adults with moderate…
Abstract Number: 918 • 2016 ACR/ARHP Annual Meeting
Anergic B Cells May Preserve Peripheral Tolerance in Lupus-Prone Congenic Mice
Kieran Manion^1,2, Yuriy Baglaenko^1,2, Nan-Hua Chang², Nafiseh Talaei³ and Joan Wither⁴, ¹Immunology, University of Toronto, Toronto, ON, Canada, ²Genetics and Development, Krembil Research Institute, University Health Network, Toronto, ON, Canada, ³Genetics and Development, Krembil Research Institute, Toronto, ON, Canada, ⁴Krembil Research Institute, University Health Network, Toronto, ON, Canada
Background/Purpose: Anergic autoreactive B cells are thought to play a critical role in systemic lupus erythematosus (SLE), a chronic autoimmune disease where breach of tolerance…
Abstract Number: 1201 • 2016 ACR/ARHP Annual Meeting
Deconvolution of Immune Cell Proportions from Whole Blood RNA Using Next-Generation Sequencing
Omar Jabado¹, Sarah Hu², Julie Carman³, Suzanne Suchard³, Deborah Lee⁴, Zhenhao Qi⁵, Stefan Kirov⁶, Ryan Golhar⁷, Aiqing He⁷, Cate Speake⁸, Peter S. Linsley⁸, Steven G. Nadler⁹ and Somnath Bandyopadhyay², ¹3551 Lawrenceville Princeton, Bristol-Myers Squibb, Princeton, NJ, ²Bristol-Myers Squibb, Princeton, NJ, ³Discovery Translational Sciences Group, Bristol-Myers Squibb, Princeton, NJ, ⁴Discovery Immunoscience, Bristol-Myers Squibb, Princeton, NJ, ⁵Exploratory Clinical and Translational Research, Bristol-Myers Squibb, Princeton, NJ, ⁶Genetically Defined Diseased & Genomics, Bristol-Myers Squibb, Princeton, NJ, ⁷Genetically Defined Diseases & Genomics, Bristol-Myers Squibb, Princeton, NJ, ⁸Systems Immunology, Benaroya Research Institute at Virginia Mason, Seattle, WA, ⁹Immunosciences Translational Research, Bristol-Myers Squibb, Princeton, NJ
Background/Purpose: Measurements of immune cell proportions from whole blood can be used to detect pharmacodynamic effects, as a marker for prognosis and to aid in…
Abstract Number: 1606 • 2016 ACR/ARHP Annual Meeting
Metrotexate Treatment Inmunomodulate the Abnormal Cytokine Expression Present in NaïVe Rheumatoid Arthritis Patients
Jorge Monserrat Sanz¹, Ana Maria Gómez Lahoz¹, Maria Dolores Sosa Reina¹, Cristina Bohórquez Heras², Atusa Movasat², Ana Pérez Gómez², Lucía Ruiz Gutiérrez², Ana Sánchez Atrio², Eduardo Cuende Quintana², M José León², David Diaz³, Fernando Albarrán Hernández² and Melchor Alvarez-Mon^2,3, ¹Medicine and Medical Specialities, Laboratory of Immune System Diseases, Department of Medicine, University of Alcalá, Alcalá de Henares, Madrid, Spain, ²University Hospital Príncipe de Asturias, Immune System Diseases, Rheumatology department, Alcalá de Henares, Madrid, Spain, ³Laboratory of Immune System Diseases, Department of Medicine, University of Alcalá, Alcalá de Henares, Madrid, Spain
Background/Purpose: Methotrexate (MTX) is the most commonly used DMARD in rheumatoid arthritis (RA) patients. Since the first reports of the efficacy of low-dose MTX in…
Abstract Number: 1638 • 2016 ACR/ARHP Annual Meeting
Antibody Mediated Immunity Drives Response to Methotrexate Treatment in Rheumatoid Arthritis Patients
Boel Brynedal¹, Helga Westerlind², Lasse Folkersen^3,4, Leonid Padyukov⁵, Nancy Vivar⁵, Anca I Catrina⁶, Lars Klareskog⁵ and Louise Berg⁵, ¹Section of Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Karolinska, Sweden, ²Section of Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden, ³Department of Medicine, Karolinska Institutet, Stockholm, Sweden, ⁴Department of Systems Biology, Technical University of Denmark, Lyngby, Denmark, ⁵Rheumatology Unit, Department of Medicine, Karolinska Institutet and Karolinska Hospital, Stockholm, Sweden, ⁶Rheumatology Unit, Department of Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
Background/Purpose: Methotrexate (MTX) is the first line treatment for Rheumatoid Arthritis (RA) in Sweden, but one third of patients do not experience satisfying treatment response.…
Abstract Number: 2708 • 2016 ACR/ARHP Annual Meeting
Type 17 Immunity in Spondyloarthritis Is Expanded Across Multiple Lymphocyte Subsets
Davide Simone¹, Hussein Al Mossawi¹, Anna Ridley², Jelle De Wit¹, Takuya Sekine¹, Nuha Ansar¹, Karen Doig¹ and Paul Bowness¹, ¹Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom, ²Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Science, University of Oxford, Oxford, United Kingdom
Background/Purpose: The spondyloarthritides (SpA) are a group of chronic inflammatory disorders involving the axial spine and the peripheral joints. Genetic, functional and clinical trial evidences…
Abstract Number: 2929 • 2016 ACR/ARHP Annual Meeting
The Baseline Th17 Lymphocytes Level Is a Predictive Marker of Good Response to Biologics in Rheumatoid Arthritis
Sarah Salomon¹, Caroline Guignant², Pierre Morel³, Brigitte Gubler⁴, Patrice Fardellone⁵, Jean-Pierre Marolleau⁶ and Vincent Goeb⁷, ¹Rheumatology, University Hospital of Amiens, Amiens, France, ²Immunology Laboratory, University Hospital of Amiens, Amiens, France, ³Hematology, University Hospital of Amiens, Amiens, France, ⁴Immunology, University Hospital of Amiens, Amiens, France, ⁵Department of Rheumatology, Amiens University hospital, Amiens, France, ⁶hematology, University Hospital of Amiens, Amiens, France, ⁷Rheumatology, Amiens University Hospital, Amiens, France
Background/Purpose: In clinical daily practice, the response to biologic drugs is unpredictable in patients with rheumatoid arthritis (RA). Thus, there is a crucial need for…
Abstract Number: 2055 • 2014 ACR/ARHP Annual Meeting
Are There Immunological Abnormalities in Fibromyalgia Patients: Flow Cytometry Analysis
Robert S. Katz¹, Hannah Bond² and Daniel Pickrell², ¹Rush Medical College, Chicago, IL, ²Rheumatology Associates, Chicago, IL
Background/Purpose: Fibromyalgia is not thought to have an immunological pathogenesis: However, few studies have been done to evaluate immunological abnormalities. We analyzed lymphocyte subsets in…

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