Abstracts tagged "pathogenesis"

Abstract Number: 0888 • ACR Convergence 2021
Disease Flares in Lupus Are Concordant with Ruminococcus Blautia Gnavus Blooms Within Unstable Gut Microbiota Communities
Doua Azzouz¹, Ze Chen¹, Zhi Li¹, Jing Deng¹, Peter Izmirly¹, David Fenyo¹, Jill Buyon¹, Alexander Alekseyenko² and Gregg Silverman¹, ¹NYU Grossman School of Medicine, New York, NY, ²Medical University of South Carolina, Charleston, SC
Background/Purpose: Systemic Lupus Erythematosus is the archetypic systemic autoimmune disease in which dysbiosis in the gut microbiome has been postulated to contribute to disease development…
Abstract Number: 2002 • 2019 ACR/ARP Annual Meeting
Presence of the MerTK Receptor on Human Synovial Tissue Macrophages Lowers Inflammatory Cytokine Production and Activation of the MerTK+CD206+ Subpopulation Limits the Inflammatory Response of Synovial Fibroblasts
Samuel Finlay¹, Stefano Alivernini ², Aziza Elmesmari ³, Barbara Tolusso ², Luca Petricca ², Clara Di Mario ⁴, Annunziata Capacci ², Andrew Filer ⁵, Gianfranco Ferraccioli ², Iain McInnes ¹, Elisa Gremese ² and Mariola Kurowska-Stolarska ¹, ¹Institute of Infection, Immunity & Inflammation, University of Glasgow, Glasgow, United Kingdom, ²Division of Rheumatology - Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy, ³Institute of Infection, Immunity & Inflammation, University of Glasgow, Glasgow, Scotland, United Kingdom, ⁴Institute of Rheumatology - Università Cattolica del Sacro Cuore, Rome, Italy, ⁵Institute of Inflammation and Ageing College of Medical and Dental Sciences University of Birmingham, Birmingham, United Kingdom
Background/Purpose: Background: A substantial proportion of Rheumatoid Arthritis patients do not respond to treatment and only a small proportion achieve sustained disease remission. We showed…
Abstract Number: 2007 • 2019 ACR/ARP Annual Meeting
Periodontal Pockets as a Potential Source of Circulating TREM-1 and Its Ligand PGLYRP1 in Patients with Rheumatoid Arthritis
Nevsun Inanc¹, GONCA MUMCU ², Meryem Can ³, Haner Direskeneli ⁴ and Nagihan Bostanci ⁵, ¹Marmara University, Faculty of Medicine, Division of Rheumatology, Istanbul, Turkey, ISTANBUL, Turkey, ²Marmara, University, Department of Health Management, Marmara University School of Health Sciences, Istanbul, Turkey, ISTANBUL, Turkey, ³Marmara University, Division of Rheumatology, Istanbul, Turkey, Istanbul, Turkey, ⁴Marmara University, School of Medicine, Division of Rheumatology, Istanbul, Turkey, ⁵Section of Periodontology and Dental Hygiene, Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
Background/Purpose: PGLYRP1, a member of peptidoglycan recognition proteins is a putative ligand as a ligand for triggering receptor expressed on myeloid cells-1 (TREM-1) which is…
Abstract Number: 2008 • 2019 ACR/ARP Annual Meeting
Histone Lysine Methyltransferase MLL1 Regulates the Expression of Cytokines and Chemokines in Rheumatoid Arthritis Synovial Fibroblasts
Yasuto Araki¹, Keita Okamoto ¹, Yoshimi Aizaki ¹, Hiromi Oda ² and Toshihide Mimura ¹, ¹Department of Rheumatology and Applied Immunology, Faculty of Medicine, Saitama Medical University, Saitama, Japan, ²Department of Orthopedic Surgery, Faculty of Medicine, Saitama Medical University, Saitama, Japan
Background/Purpose: Rheumatoid arthritis (RA) is a chronic inflammatory disease that primarily affects the joints. The inflammatory process causes the activation of synovial fibroblasts (SFs) and…
Abstract Number: 2016 • 2019 ACR/ARP Annual Meeting
Expression of Peptidyl-arginine Deiminases in Peripheral Blood Neutrophils and Its Association with Single Nucleotide Variants in Patients with Rheumatoid Arthritis
Masayoshi Harigai¹, Ryoko Sakai ², Takahiko Sugihara ³ and Akihito Ishigami ⁴, ¹Department of Rheumatology, Tokyo Women's Medical University School of Medicine, Shinjuku-ku, Tokyo, Japan, ²Department of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan, ³Tokyo Medical and Dental University, Tokyo, Japan, ⁴Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
Background/Purpose: Peptidyl-arginine deiminases (PADIs) are enriched in neutrophils and considered to be responsible for citrullination of proteins in vivo. Autoantibody against citrullinated proteins are frequently…
Abstract Number: 2298 • 2019 ACR/ARP Annual Meeting
Interstitial Lung Disease Is Associated with Distinct Fine Specificities of Anti-Carbamylated Peptide/Protein Antibodies in Rheumatoid Arthritis
Raul Castellanos-Moreira¹, Sebastian Rodriguez-Garcia ², Virginia Ruiz-Esquide ³, Fernanda Hernández-González ⁴, Marcelo Sánchez ⁵, José Ramírez ⁶, Mariana Benegas ⁵, Carmen Lucena-Pozo ⁴, Carlos Agustí ⁴, Marc Boada ⁷, Odette Viñas ⁸, Estíbaliz Ruiz ⁸, Sergio Prieto-González ⁹, Jose Gomez-Puerta ¹, Jacobo Sellares ⁴, Juan Cañete ¹, Isabel Haro ¹⁰ and Raimon Sanmarti ¹, ¹Department of Rheumatology, Hospital Clínic, Barcelona, Barcelona, Spain, ²Rheumatology Department. Hospital Clínic Barcelona, Barcelona, Spain, ³Department of Rheumatology, Hospital Clínic, Barcelona, Barcelona, Catalonia, Spain, ⁴Department of Pneumology, Hospital Clínic, Barcelona, Barcelona, Spain, ⁵Department of Radiodiagnosis, Hospital Clínic, Barcelona, Barcelona, Spain, ⁶Department of Pathological Anatomy, Hospital Clínic, Barcelona, Barcelona, Spain, ⁷Department of Thoracic Surgery, Hospital Clínic, Barcelona, Barcelona, Spain, ⁸Department of Immunology, Hospital Clínic, Barcelona, Barcelona, Spain, ⁹Department of Systemic Autoimmune Diseases Hospital Clínic, Barcelona, Barcelona, Spain, ¹⁰Unit of Synthesis and Biomedical Applications of Peptides, IQAC CSIC, Barcelona, Barcelona, Spain
Background/Purpose: Interstitial lung disease (ILD) is a common and severe complication of rheumatoid arthritis (RA). It has been associated with the presence of ACPA. Anti-carbamylated…
Abstract Number: 34 • 2019 ACR/ARP Annual Meeting
The Role of NFAT5-p65 Complex Enhanceosome in the Inflammatory Responses of Rheumatoid Arthritis Synovial Fibroblasts via TLR4 Signaling
Kunihiko Umekita¹, Yumi Kariya ¹, Chihiro Iwao ¹, Masatoshi Kimura ¹, Risa Kudo ¹, Yuki Rikitake ¹, Shunichi Miyauchi ² and Akihiko Okayama ¹, ¹University of Miyazaki, Miyazaki, Japan, ²University of Miyazaki, Miyazaki
Background/Purpose: Transcription factors belonging to the family of nuclear factors of activated T cells (NFAT) play an essential role in diverse biological processes, such as…
Abstract Number: 35 • 2019 ACR/ARP Annual Meeting
Mass Cytometry Identifies Enhanced Histone H3 Citrullination and TNFα Production by CD14 Monocytes in Subjects At-Risk for Future Development of Rheumatoid Arthritis
Yuko Okamoto¹, Elena W.Y. Hsieh ², Ronald P. Schuyler ³, Jennifer Seifert ⁴, Marie Feser ⁵, Jill Norris ⁶, M. Kristen Demoruelle ⁷, Kevin Deane ⁵ and V. Michael Holers ⁴, ¹University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA and Tokyo Women’s Medical University School of Medicine, Department of Rheumatology, Tokyo, Japan, Denver, ²University of Colorado School of Medicine, Department of Immunology and Microbiology, Aurora, CO, USA and University of Colorado School of Medicine, Children’s Hospital Colorado, Department of Pediatrics, Section of Allergy & Immunology, Aurora, CO, USA, Denver, ³University of Colorado School of Medicine, Department of Immunology and Microbiology Aurora, CO, USA, Denver, ⁴University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA, Denver, ⁵University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA, Aurora, CO, ⁶Colorado School of Public Health, Department of Epidemiology, Aurora, CO, USA, Denver, ⁷University of Colorado Denver, Division of Rheumatology, Aurora, CO, USA, Aurora
Background/Purpose: Our group previously demonstrated that sputum neutrophils from subjects At-Risk for future rheumatoid arthritis (RA) spontaneously form neutrophil extracellular traps with elevated histone H3…
Abstract Number: 38 • 2019 ACR/ARP Annual Meeting
Autophagy Receptor Optineurin in Synovial Fibroblasts Plays a Protective Role Against Joint Destruction in Rheumatoid Arthritis
Wen Shi Lee¹, Masaru Kato ¹, Eri Sugawara ¹, Michihiro Kono ¹, Yuki Kudo ², Michihito Kono ³, Yuichiro Fujieda ¹, Toshiyuki Bohgaki ¹, Olga Amengual ¹, Kenji Oku ¹, Shinsuke Yasuda ¹ and Tatsuya Atsumi ⁴, ¹Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan, ²Hokkaido University Graduate School of Medicine, Sapporo, Japan, ³Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan, ⁴Hokkaido University, Sapporo, Japan
Background/Purpose: Joint destructions progress throughout the course of rheumatoid arthritis (RA) without complete remission. Optineurin (OPTN) is an autophagy receptor with multiple functions related to…
Abstract Number: 54 • 2019 ACR/ARP Annual Meeting
A Metagenome-wide Association Study of Gut Microbiome Revealed Novel Etiology of Rheumatoid Arthritis in the Japanese Population
Toshihiro Kishikawa ¹, Yuichi Maeda ², Takuro Nii ¹, Daisuke Motooka ¹, Yuki Matsumoto ¹, Masato Matsushita ³, Hidetoshi Matsuoka ⁴, Maiko Yoshimura ⁴, Shoji Kawada ⁵, Satoru Teshigawara ⁴, Eri Oguro ¹, Yasutaka Okita ⁴, Keisuke Kawamoto ⁵, Shinji Higa ⁶, Toru Hirano ⁷, Masashi Narazaki ¹, Atsushi Ogata ⁵, Yukihiko Saeki ⁸, Shota Nakamura ¹, Hidenori Inohara ¹, Atsushi Kumanogoh ¹, Kiyoshi Takeda ¹ and Yukinori Okada¹, ¹Osaka University, Suita, Japan, ²Department of Respiratory Medicine and Clinical Immunology, Osaka University Graduate School of Medicine, Osaka, Japan, ³Saiseikai Senri Hospital, Suita, Japan, ⁴NHO Osaka Minami Medical Center, Kawachinagano, Japan, ⁵Daini Osaka Police Hospital, Tennoji-ku, Japan, ⁶Osaka Second Police Hospital, Osaka, Japan, ⁷Department of Respiratory Medicine and Clinical Immunology, Graduate School of Medicine, Osaka University, Osaka, Japan, ⁸NHO Osaka Minami Medical Center, Kawachinagano, Osaka, Japan
Background/Purpose: The causality and pathogenic mechanism of microbiome composition remain elusive in many diseases, including autoimmune diseases such as rheumatoid arthritis (RA). This study aimed…
Abstract Number: 500 • 2019 ACR/ARP Annual Meeting
The Dysregulation of NK Cells and Non-Conventional NK-T and γδ-T Cells in Individuals at Risk of Developing Rheumatoid Arthritis
Klára Prajzlerová¹, Olga Kryštůfková ², Petra Hánová ³, Hana Hulejová ³, Monika Gregová ¹, Nora Petrovská ¹, Herman Mann ⁴, Karel Pavelka ⁴, Jiří Vencovský ⁴, Ladislav Senolt ⁴ and Mária Filková ¹, ¹Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic, ²Institute of Rheumatology, Department of Rheumatology, 1st Faculty of Medicine, Prague, Czech Republic, Prague, Czech Republic, ³Institute of Rheumatology, Prague, Czech Republic, ⁴Institute of Rheumatology, Department of Rheumatology, 1st Faculty of Medicine, Prague, Czech Republic, Prague 2, Czech Republic
Background/Purpose: The positivity of antibodies against citrullinated proteins (ACPA) precedes the clinical manifestation and significantly increases the risk of rheumatoid arthritis (RA). EULAR characterised individuals…
Abstract Number: 816 • 2019 ACR/ARP Annual Meeting
The Long Non-coding RNA HOTAIR Regulates BMP2 and Wnt Pathways in Synovial Fibroblasts
Muriel Elhai¹, Raphael Micheroli ¹, Mojca Frank-Bertoncelj ², Kerstin Klein ¹, Oliver Distler ³ and Caroline Ospelt ², ¹Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, Switzerland., Zürich, Switzerland, ²University Hospital Zürich, Zürich, Switzerland, ³Dept. of Rheumatology, University Hospital Zürich, Zürich, Switzerland, Zürich, Switzerland
Background/Purpose: Mechanisms involved in joint patterning of rheumatic diseases remain unknown. The long non-coding RNA HOTAIR is exclusively expressed in synovial fibroblasts (SF) from lower…
Abstract Number: 817 • 2019 ACR/ARP Annual Meeting
Enhanced Expression of mRNA for TAK1 in CD34+ Cells of the Bone Marrow in Rheumatoid Arthritis
Shunsei Hirohata¹, Tatsuo Nagai ², Tetsuya Tomita ³ and Hideki Yoshikawa ³, ¹Department of Rheumatology and Infectious Diseases, Kitasato University School of Medicine, Tatsuno, Japan, ²Kitasato University School of Medicine, Sagamihara, Japan, ³Osaka University Graduate School of Medicine, Osaka, Japan
Background/Purpose: Rheumatoid arthritis (RA) is a chronic inflammatory disease characterized by synovial hyperplasia, consisting of type A macrophage-like synoviocytes and type B fibroblast-like synoviocytes (FLS).…
Abstract Number: 2045 • 2019 ACR/ARP Annual Meeting
RNA Sequencing of Plasma and Urine-derived Extracellular Vesicles from Lupus Nephritis Patients Identifies Disease-associated Small RNA Signatures and Putative Therapeutic Targets
Taylor Koenig¹, Nicholas Young ², Giancarlo Valiente ³, Ifeoma Okafor ⁴, Emily Schwarz ⁵, Peter Harb ⁵, Caitlin Henry ¹, Kyle Jablonski ⁶, Lai-Chu Wu ⁴, Eli Roberson ⁷ and Wael Jarjour ⁸, ¹Division of Immunology and Rheumatology, The Ohio State University Wexner Medical Center, Columbus, ²The Ohio State University Wexner Medical Center, Division of Immunology and Rheumatology, Columbus, OH, ³The Ohio State University, Columbus, ⁴Ohio State College of Medicine, Columbus, ⁵The Ohio State University Wexner Medical Center, Columbus, OH, ⁶The Ohio State University Wexner Medical Center, Division of Immunology and Rheumatology, Columbus, ⁷Washington University at St.Louis, St.Louis, MO, ⁸Ohio State College of Medicine, Columbus, OH
Background/Purpose: Systemic lupus erythematosus is an autoimmune disease characterized by chronic inflammation. We have previously shown that TLR7 and TLR8 are significantly upregulated in PBMCs…
Abstract Number: 977 • 2019 ACR/ARP Annual Meeting
Conditional Deletion of MKL1 Inhibits Osteoclast Formation and Bone Erosions in Collagen Induced Arthritis Mice
Wenfeng Tan¹, Aishu Luo ¹, Yong Xu ², Shiyu Lin ³, Miaojia Zhang ⁴ and Fang Wang ³, ¹the First Affiliated Hospital of Nanjing Medical University, Nanjing, China (People's Republic), ²Nanjing Medical University, NANJING, China (People's Republic), ³the First Affiliated Hospital of Nanjing Medical University, Nanjing, ⁴the First Affiliated Hospital of Nanjing Medical University, Najing, China (People's Republic)
Background/Purpose: Excessively osteoclasts (OCs) activation play an essential role in bone erosions in rheumatoid arthritis (RA). Thus, controlling OCs would be an effective strategy to…

1
2
3
…
10
Next Page »

All abstracts accepted to ACR Convergence are under media embargo once the ACR has notified presenters of their abstract’s acceptance. They may be presented at other meetings or published as manuscripts after this time but should not be discussed in non-scholarly venues or outlets. The following embargo policies are strictly enforced by the ACR.

Accepted abstracts are made available to the public online in advance of the meeting and are published in a special online supplement of our scientific journal, Arthritis & Rheumatology. Information contained in those abstracts may not be released until the abstracts appear online. In an exception to the media embargo, academic institutions, private organizations, and companies with products whose value may be influenced by information contained in an abstract may issue a press release to coincide with the availability of an ACR abstract on the ACR website. However, the ACR continues to require that information that goes beyond that contained in the abstract (e.g., discussion of the abstract done as part of editorial news coverage) is under media embargo until 10:00 AM ET on November 14, 2024. Journalists with access to embargoed information cannot release articles or editorial news coverage before this time. Editorial news coverage is considered original articles/videos developed by employed journalists to report facts, commentary, and subject matter expert quotes in a narrative form using a variety of sources (e.g., research, announcements, press releases, events, etc.).

Violation of this policy may result in the abstract being withdrawn from the meeting and other measures deemed appropriate. Authors are responsible for notifying colleagues, institutions, communications firms, and all other stakeholders related to the development or promotion of the abstract about this policy. If you have questions about the ACR abstract embargo policy, please contact ACR abstracts staff at [email protected].