Abstracts tagged "Monocytes/macrophages"

Abstract Number: 0022 • ACR Convergence 2021
The Effects of MAA-Modified and/or Citrullinated Proteins on Calcium Influx and Peptidyl Arginine Deiminase (PAD) Expression in Macrophage
Andrew Gerber, Michael Duryee, Nozima Aripova, Bryant England, James O'Dell, Ted Mikuls and Geoffrey Thiele, University of Nebraska Medical Center, Omaha, NE
Background/Purpose: Expressed in synovial fluid mononuclear and other inflammatory cells, peptidyl arginine deiminase (PAD) catalyzes post-translational citrullination of synovial proteins in a calcium (Ca2+)-dependent manner.…
Abstract Number: 0040 • ACR Convergence 2021
M1-M2 Polarization by CTLA4-Ig (Abatacept) on Cultured Circulating Monocytes from Rheumatoid Arthritis Patients and Healthy Subjects
Samuele tardito¹, Stefano Soldano², Emanuele Gotelli², Paola Montagna¹, Rosanna Campitiello², Sabrina Paolino², Carmen Pizzorni¹, Alberto Sulli², Vanessa Smith³ and Maurizio Cutolo², ¹Laboratory of Experimental Rheumatology and Academic Division of Clinical Rheumatology, Dept. Internal Medicine, University of Genova, IRCCS Polyclinic San Martino Hospital, Genoa, Italy, ²Laboratory of Experimental Rheumatology and Academic Division of Clinical Rheumatology, Department of Internal Medicine, University of Genova, IRCCS Polyclinic San Martino Hospital, Genoa, Italy, ³Department of Rheumatology and Internal Medicine, Ghent University Hospital, Ghent, Belgium
Background/Purpose: Rheumatoid Arthritis (RA) is a chronic autoimmune disorder affecting 1% of the population worldwide [1]. Monocytes/macrophages are known to play a crucial role in…
Abstract Number: 0294 • ACR Convergence 2020
Tired T-Cells and Monocytes with Malaise: Investigating the Links Between Cellular Iron Deficiency and Mitochondrial Dysfunction in Systemic Lupus Erythematosus
Chris Wincup¹, Thomas McDonnell¹, George Robinson², Filipa Farinha¹, Anna Radziszewska¹ and Anisur Rahman¹, ¹University College London, London, United Kingdom, ²University College London, Hertford, United Kingdom
Background/Purpose: Iron is vital for many physiological processes and is found within respiratory complexes of the mitochondrial electron transport chain, the key site of oxidative phosphorylation…
Abstract Number: 0450 • ACR Convergence 2020
In Vitro Characterization of Inflammatory Arthritis Associated with Immune Check Point Inhibition
Anne Sofie Sørensen¹, Morten Nørgaard Andersen¹, Kristian Juul-Madsen², Cæcilie Deisting Skejø¹, Henrik Schmidt¹, Thomas Vorup-Jensen¹ and Tue Wenzel Kragstrup¹, ¹Aarhus University, Aarhus, Denmark, ²Aarhus University, Aarhus, Midtjylland, Denmark
Background/Purpose: During treatment with immune checkpoint inhibitors (ICI) such as the anti-PD-1 antibody pembrolizumab, 2-4% of cancer patients develop inflammatory arthritis as an immune-related adverse…
Abstract Number: 0496 • ACR Convergence 2020
A Role of Lipid-Peroxidation in Systemic Lupus Erythematosus-Associated Cardiovascular Disease
David Patrick¹, Justin van Beusecum¹, Michelle Ormseth², Leslie J. Crofford², Sean Davies³, Sergey Dikalov¹ and David Harrison¹, ¹Vanderbilt University Medical Center, Nashville, ²Vanderbilt University Medical Center, Nashville, TN, ³Vanderbilt University, Nashville
Background/Purpose: In SLE, cardiovascular complications are a significant contributor to morbidity and death. Importantly, there is an increased prevalence of hypertension in SLE patients compared…
Abstract Number: 0772 • ACR Convergence 2020
Modification of THP-1 Cells with Malondialdehyde-Acetaldehyde Increases Cellular Calcium Load Rendering Cells Susceptible to Citrullination of Self-Proteins
Nozima Aripova¹, Michael Duryee¹, Xiarepati Tieliwaerdi¹, Xiaoting Jiang¹, Lynell Klassen², James O'Dell¹, Bryant England¹, Ted Mikuls¹ and Geoffrey Thiele¹, ¹University of Nebraska Medical Center, Omaha, NE, ²Univerisity of Nebraska Medical Center, Omaha, NE
Background/Purpose: The post translational modification of self-proteins with malondialdehyde-acetaldehyde (MAA) has been shown to alter protein function and antibodies to MAA are increased in both…
Abstract Number: 0777 • ACR Convergence 2020
CLEC12A Expression as a Potential Predictor of Disease Activity in Early Rheumatoid Arthritis
Myriam Vaillancourt¹, Philippe Desaulniers¹, Guillaume Paré¹, Nathalie Pagé¹, Asmaa Lachaab¹, Anthony Kerever¹, Anne-Sophie Julien¹, Nathalie Amiable¹, Martin Pelletier¹, Philippe Tessier¹, Louis Bessette², Paul Fortin³, Laetitia Michou¹ and Maria Fernandes¹, ¹Université Laval, Québec, QC, Canada, ²Laval University, Quebec, Canada, ³CHU de Quebec - Universite Laval, Quebec, Canada
Background/Purpose: Rheumatoid arthritis (RA) develops as a result of the dysregulation of immune activating and inhibitory pathways. Several lines of evidence indicate that inhibitory receptors…
Abstract Number: 0784 • ACR Convergence 2020
Upregulation of Tyro3TK on CD14+CD16- Monocytes Promotes Osteoclast Formation in Rheumatoid Arthritis
Jimeng Xue¹, Liling Xu¹, Fanlei Hu¹ and Yin Su², ¹Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China, Beijing, China (People's Republic), ²Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing, China (People's Republic)
Background/Purpose: The study aimed to investigate the expression and clinical significance of Tyro3TK on CD14+CD16+ and CD14+CD16- monocyte subsets and explore the effect of Tyro3TK…
Abstract Number: 0785 • ACR Convergence 2020
Identification of Recruited CCR2+ Inflammatory Monocytes in a Mouse Model of RA-associated Lung Disease with Potential Role for resolvin-D1 in Reducing Monocyte Inflammatory Responses
Austin Barry¹, Geoffrey Thiele¹, Ted Mikuls¹, Michael Duryee¹, Amy Nelson¹, Rohit Gaurav¹, Bryant England¹ and Jill Poole¹, ¹University of Nebraska Medical Center, Omaha, NE
Background/Purpose: Patients with rheumatoid arthritis (RA) are at an increased risk for comorbid chronic lung disease, with premature mortality. Therapies for RA-associated lung disease are…
Abstract Number: 0786 • ACR Convergence 2020
A Combination of Dimensionality Reduction Techniques Reveals Novel HLA-DR+ ‘Candidate’ Antigen-Presenting Cell Subsets (cAPC) in Patients with Rheumatoid Arthritis (RA)
Christian Geier¹, Jon Giles¹, Samantha Gaines², Christopher Depender¹, Joan Bathon¹ and Robert Winchester¹, ¹Division of Rheumatology, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, ²Division of Rheumatology, Columbia University Vagelos College of Physicians and Surgeons, New York
Background/Purpose: The presentation of MHC-peptide complexes to T lymphocytes via antigen-presenting cells (APC) is a crucial step in the initiation of immune responses. Dendritic cells…
Abstract Number: 0788 • ACR Convergence 2020
Rigorous Plasma Microbiome Analysis Method Enables Disease Association Discovery
Wei Jiang¹, Alexander Alekseyenko², Gary Gilkeson³, Jim Oates⁴, Elizabeth Ogunrind⁵, Quan Li⁶, Diane Kamen², Betty Tsao⁵ and Zhenwu Luo⁵, ¹MUSC, Charleston, SC, ²Medical University of South Carolina, Charleston, SC, ³Division of Rheumatology, Medical University of South Carolina, Charleston, SC, ⁴Medical University of South Carolina, Charleston, SC, Charleston, SC, ⁵Medical University of South Carolina, Charleston, ⁶UT South Western Medical Center, Texas
Background/Purpose: The mucosal microbiome contributes to disease pathogenesis via local and systemic interaction with the host. The hallmark of this interaction in the physiological condition…
Abstract Number: 0949 • ACR Convergence 2020
SLAMF7 Engagement Drives Monocyte Super-Activation in Acute and Chronic Inflammation
Daimon Simmons¹, Hung Nguyen², Emma Gomez-Rivas³, YunJu Jeong⁴, William Apruzzese⁵, Edy Kim⁶ and Michael Brenner⁷, ¹Department of Pathology, Brigham and Women's Hospital, Boston, MA, ²Division of Rheumatology, Brigham and Women's Hospital,, Boston, MA, ³Division of Rheumatology, Brigham and Women's Hospital, Boston, MA, ⁴Division of Pulmonary and Critical Care, Brigham and Women's Hospital, Boston, MA, ⁵., Boston, ⁶Brigham and Women’s Hospital, Division of Pulmonary and Critical Care Medicine, Boston, MA, ⁷Brigham and Women's Hospital and Harvard Medical School, Boston, MA
Background/Purpose: Monocytes orchestrate immune responses that protect against microbes but can also drive pathological inflammation and autoimmune disease. Monocytes are thought to be activated primarily…
Abstract Number: 1037 • ACR Convergence 2020
Relationship Between Air Quality and Sarcoidosis Inflammatory Activity
Aaron Case¹, Dustin Fraidenburg², Israel Rubinstein² and Christian Ascoli², ¹University of Illinois at Chicago, Chicago, IL, ²Division of Pulmonary,Critical Care, Sleep and Allergy; Department of Medicine, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA, Chicago, IL
Background/Purpose: African Americans [AA] and minorities in the lower socioeconomic strata of Chicago are disproportionately affected by pulmonary sarcoidosis, and regularly exposed to poorer air…
Abstract Number: 1067 • ACR Convergence 2020
Anti-Viral Proinflammatory Phenotype in Circulating Monocytes from Patients with Anti-Melanoma Differentiation-Associated Gene 5 Antibody-Associated Interstitial Lung Disease
Takahisa Gono¹, Yuka Okazaki¹ and Masataka Kuwana², ¹Department of Allergy and Rheumatology, Nippon Medical School Graduate School of Medicine, Tokyo, Japan, ²Department of Allergy and Rheumatology, Nippon Medical School Graduate School of Medicine, Tokyo, Tokyo, Japan
Background/Purpose: Anti-melanoma differentiation-associated gene 5 (MDA5) antibody is associated with interstitial lung disease (ILD), which often represents rapidly progressive course and fatal outcomes. Circulating levels…
Abstract Number: 0039 • ACR Convergence 2020
Identification of a Regulatory Pathway Governing Expression of TRAF1 via a JIA-associated Non-coding Variant
Qiang Wang¹, Marta Martínez², Matthew Weirauch³ and Peter Nigrovic⁴, ¹Brigham and Women's Hospital, Boston, MA, ²Brigham and Women's Hospital, Boston, ³Cincinnati Children’s Hospital Medical Center/Univ of Cincinnati, 535 Terrace Ave, ⁴Division of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Division of Immunology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA, Boston
Background/Purpose: Over the past decade, genome-wide association studies (GWAS) have identified TRAF1/C5 locus as a risk locus for rheumatoid diseases including RA and JIA(Plenge, Seielstad…

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