Abstracts tagged "microbiome"

Abstract Number: 2536 • ACR Convergence 2024
Trans-Disease Microbial Biomarkers of Protection and Pathogenesis in Autoimmune Conditions: Results from the AMP AIM Consortium
Kevin Bu¹, Rebecca Blank², Adam Cantor¹, Alba Boix-Amoros³, Jose Scher⁴ and Jose Clemente¹, and Accelerating Medicines Partnership and Immune-Mediated Diseases Network (AMP AIM), ¹Icahn School of Medicine at Mount Sinai, New York, NY, ²NYU, New York, NY, ³Icahn School of Medicine, New York, NY, ⁴New York University School of Medicine, New York, NY
Background/Purpose: Autoimmune and immune-mediated diseases (AIMDs) affect over 20 million Americans. Although AIMDs have distinct symptomatology, there is significant overlap in their treatment, suggesting overlap…
Abstract Number: 0073 • ACR Convergence 2024
Self or Bacteria-reactive Th17 Expand from Conventional and Regulatory T Cells in Parabacteroides Goldsteinii Gnotobiotic Arthritic SKG Mice, in Context of Interferon-driven Synovial Inflammatory Macrophages and Reduced Bacterial Immune Regulation
Benjamin Cai¹, Zewen Kelvin Tuong², Mark Morrison¹, Anne-Sophie Bergot¹ and Ranjeny Thomas³, ¹Frazer Institute, University of Queensland, Brisbane, Australia, ²Child Health Research Centre, University of Queensland, South Brisbane, Queensland, Australia, ³University of Queensland, Brisbane, Australia
Background/Purpose: In ankylosing spondylitis, spondyloarthritis (SpA) is often associated with gut inflammation. The strong genetic association with HLA-B27 and expanded CD8 TCR public clonotypes implicate…
Abstract Number: 2541 • ACR Convergence 2024
Probiotic Modulation of Gut Microbiota Mitigates Early Rheumatoid Arthritis Progression: Insights from Pre-Clinical Models
Tong Wu¹, Yanhong Li², Yubin Luo¹ and Yi Liu³, ¹West China Hospital, Sichuan University, Cheng Du, China (People's Republic), ²West China School of Medicine and West China Hospital, Sichuan University, Cheng Du, Sichuan, China, ³West China Hospital of Sichuan University, Chengdu, Sichuan, China
Background/Purpose: Rheumatoid arthritis (RA) progression, categorized by EULAR into six stages, includes pre-clinical RA (Pre-RA)[1], where mucosal surfaces are implicated as initiators of autoimmune responses…
Abstract Number: 0264 • ACR Convergence 2024
Clinical Value of Metagenomic Next-generation Sequencing in Patients with Connective Tissue Disease Co-infections: A Single-center Study from Southern Hospital in China
Yuan-Yuan Xiao¹, Ai-Ling Lu¹, Han-You Mo², Zhen-Dong He², Jia-Le Wen² and Xuan Yin¹, ¹Guilin Medical University, Guilin, China (People's Republic), ²The First Affiliated Hospital of Guangxi Medical University, Nanning, China (People's Republic)
Background/Purpose: Few studies have been reported on the use of metagenomic next-generation sequencing (mNGS) in patients with connective tissue disease (CTD) co-infections, and more relatively large-scale data…
Abstract Number: 2603 • ACR Convergence 2024
A Human Lupus Gut Pathobiont Accelerates Systemic Inflammation, Autoantibody Production and T Cell Dysregulation
Gregg Silverman¹ and Laurence Morel², ¹NYU Grossman School of Medicine, New York, NY, ²Joe R. & Teresa Lozano Long School of Medicine, San Antonio, TX
Background/Purpose: The mechanisms by which the gut microbiome contributes to autoimmune pathogenesis remain poorly understood. In lupus patients, more than ten-fold blooms of Ruminococcus gnavus…
Abstract Number: 0514 • ACR Convergence 2024
Efficacy, Safety and Mechanism of Butyrate in the Treatment of Rheumatoid Arthritis (RA)
Jing He¹, Naidi Wang², Yuhui Li³, Ruoyi Wang², Xiao Tan², Runzhi Zhufeng², Yipeng Han², Hao Li², Yuebo Jin² and Zhanguo Li⁴, ¹Rheumatology, Beijing, China, ²Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing, China, ³Peking University, BeiJing, China, ⁴People’s Hospital Peking University Health Sciences Centre, Beijing, China
Background/Purpose: This study aims to investigate the safety and efficacy of butyrate capsules in treating patients with rheumatoid arthritis (RA) and elucidate the underlying mechanisms.Methods:…
Abstract Number: 2685 • ACR Convergence 2024
Association Between Gastrointestinal Bacterial Species and Radiological Features of Systemic Sclerosis-Interstitial Lung Disease (SSc-ILD): A Multicenter Study from the SSc Microbiome Consortium Project
Arissa Young¹, Kristofer Andreasson², Swapna Joshi³, Jen Labus³, Andrea Low Hsiu Ling⁴, vanessa smith⁵, Zsuzsanna McMahan⁶, Antonia Valenzuela Vergara⁷, Susanna Proudman⁸, Grace Kim³, Gracijela Bozovic², Jonathan Goldin³, Ezinne Aja³, Jonathan Jacobs³ and Elizabeth Volkmann⁹, ¹UCLA, Los Angeles, CA, ²Lund University, Lund, Sweden, ³UCLA, Los Angeles, ⁴3Singapore General Hospital, Duke-NUS, Singapore, Singapore, ⁵Ghent University Hospital, Gent, Belgium, ⁶UTHealth Houston Division of Rheumatology, Houston, TX, ⁷Pontificia Universidad Catolica de Chile, Santiago, Chile, ⁸Royal Adelaide Hospital, Adelaide, Australia, ⁹University of California, Department of Medicine, Los Angeles, CA, USA, Los Angeles
Background/Purpose: Variations in gastrointestinal (GI) microbial communities may influence the development of lung diseases. Patients with SSc-ILD have a unique intestinal microbial signature. To further…
Abstract Number: 0812 • ACR Convergence 2024
A Human Gut Pathobiont Drives Platelet Activation with Microparticle Release and NETosis During Lupus Nephritis Flares
Abhimanyu Amarnani¹, Cristobal Rivera-Martinez¹, Marc Scherlinger², Doua Azzouz¹, Andy Lee¹, Kate Trujillo¹, MacIntosh Cornwell¹, Tyler Weinstein¹, Tatiana Borja³, Bharati Matta⁴, Sharon Chung⁵, Laura Cooney⁶, Uzair Chaudhary¹, Steven Medvedovsky¹, Peter Izmirly¹, Jill Buyon¹, Patrick Blanco⁷, Betsy Barnes⁸, Bhama Ramkhelawon¹, Kelly Ruggles⁹ and Gregg Silverman¹, ¹New York University Grossman School of Medicine, New York, NY, ²Strasbourg University Hospital, Strasbourg, France, ³Feinstein Institutes for Medical Research, New York, NY, ⁴The Feinstein Institutes for Medical Research, Manhasset, NY, ⁵University of California, San Francisco and Immune Tolerance Network, San Francsico, ⁶University of Michigan and Immune Tolerance Network, Ann Arbor, MI, ⁷UMR_CNRS 5164 Immunoconcept, BORDEAUX CEDEX, France, ⁸Feinstein Institutes for Medical Science, Manhasset, NY, ⁹NYU Grossman School of Medicine, Brooklyn, NY
Background/Purpose: SLE is a leading cause of premature death, often from severe complications including lupus nephritis (LN), especially in disadvantaged groups. Despite advances in treatment,…
Abstract Number: 2694 • ACR Convergence 2024
Associations Between Immune Checkpoint Molecules and Nasal Microbiome in ANCA-associated Vasculitis
Yoichi Nakayama¹, Mirei Shirakashi², Erika Furukawa³, Chikako Endo⁴, Tsuneo Sasai⁵, Yuya Tabuchi⁴, Ryosuke Hiwa⁵, Hideaki Tsuji⁵, Koji Kitagori⁶, Shuji Akizuki⁷, Ran Nakashima⁵, Kosaku Murakami³, Hajime Yoshifuji⁵ and Akio Morinobu⁸, ¹Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Hirakata-shi, Osaka-fu, Japan, ²Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, ³Division of Clinical Immunology and Cancer Immunotherapy, Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Kyoto, Japan, ⁴Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Kyoto, Japan, ⁵Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan, ⁶Occupational Welfare Division, Agency for Health, Safety and Environment, Kyoto University,, Kyoto, Kyoto, Japan, ⁷Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto City, Japan, ⁸Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, Kyoto, Japan., Kyoto, Japan
Background/Purpose: Among patients with ANCA-associated vasculitis (AAV), several exhibit sinonasal involvement, especially in granulomatosis with polyangiitis (GPA) and eosinophilic granulomatosis with polyangiitis (EGPA). A recent…
Abstract Number: 0948 • ACR Convergence 2024
Neuronal Intestinal Dysplasia Due to Ncx Gene Deficiency Attenuates the Severity of Experimental Arthritis in Mice
Takayoshi Owada¹, Keiko Hatanaka², Ayae Tanaka², Kei Ikeda³, Hirokuni Hirata¹, Yasutsugu Fukushima¹, Kazuhiro Kurasawa² and Masafumi Arima², ¹Dokkyo Medical University Saitama Medical Center, Koshigaya, Saitama, Japan, ²Dokkyo Medical University, Mibu-machi, Shimotsuga-gun, Tochigi, Japan, ³Dokkyo Medical University, Mibu, Shimotsuga, Tochigi, Tochigi, Japan
Background/Purpose: Loss of bacterial diversity and increases of specific bacteria in the gut microbiota have been observed in inflammatory arthritis such as rheumatoid arthritis…
Abstract Number: 0927 • ACR Convergence 2023
A Complex Interplay Among Gut Lachnoclostidium, HLA Haplotype DRB1*07:01, and the TNF Superfamily in Anti-Ro+ Women with a Spectrum of Preclinical and Clinical Autoimmunity Whose Children Have Neonatal Lupus
Robert Clancy¹, Caroline Izmirly¹, Miranda Marion², Nicola Fraser¹, Joel Guthridge³, Timothy Howard², Peter Izmirly⁴, Mala Masson⁵, Jill Buyon¹, Judith James³ and Carl Langefeld⁶, ¹NYU Grossman School of Medicine, New York, NY, ²Wake Forest University, Winston-Salem, NC, ³Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁴New York University School of Medicine, New York, NY, ⁵New York University, New York, NY, ⁶Wake Forest University School of Medicine, Winston-Salem, NC
Background/Purpose: Mothers of children with neonatal lupus (NL) are often clinically asymptomatic or have insufficient criteria for a formal rheumatologic diagnosis, despite having high titers…
Abstract Number: 2434 • ACR Convergence 2023
Acetylated Bacterial Proteins as Potent Antigens Inducing an Anti-modified Protein Antibody Response
Mikhail Volkov, Arieke Kampstra, Karin van Schie, Joanneke Kwekkeboom, Arnoud de Ru, Peter van Veelen, Thomas Huizinga, René Toes and Diane van der Woude, Leiden University Medical Center, Leiden, Netherlands
Background/Purpose: Gut-residing bacteria, such as E.coli, can acetylate their proteome under conditions of amine starvation. It is postulated that the (gut) microbiome is involved in…
Abstract Number: 1221 • ACR Convergence 2023
Familial Clustering of Dysbiotic Oral and Fecal Microbiomes in Juvenile Dermatomyositis (JDM)
Albert Chow¹, Sean Koester², Evan Pepper-Tunick³, Peggy Lee⁴, Mary Eckert⁵, Laurie Brenchley⁶, Pamela Gardner⁶, Naisi Li², adam Schiffenbauer⁷, Rita Volochayev⁷, Nastaran Bayat⁸, Jeffrey McLean⁹, Lisa Rider¹⁰, Susan Shenoi¹¹, Anne Stevens¹² and Neelendu Dey¹³, ¹Loma Linda University, Loma Linda, CA, ²Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA, ³Molecular Engineering & Sciences Institute, University of Washington, Seattle, WA, ⁴Department of Oral Medicine, School of Dentistry, University of Washington, Seattle, WA, ⁵Center for Clinical and Translational Research, Seattle Children’s Research Institute, Seattle, WA, ⁶Office of the Clinical Director, NIDCR, National Institutes of Health, Bethesda, MD, ⁷Environmental Autoimmunity Group, Clinical Research Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Bethesda, MD, ⁸Social Scientific Systems, DLH Holdings Corp, Silver Spring, MD, ⁹Department of Periodontics, University of Washington, Seattle, WA, ¹⁰NIEHS, NIH, Bethesda, MD, ¹¹Seattle Childrens Hospital, Mercer Island, WA, ¹²Janssen, Hansville, WA, ¹³Department of Medicine, Division of Gastroenterology, University of Washington, Seattle, WA
Background/Purpose: JDM is a rare immune-mediated disease of childhood that is thought to result from genetic predisposition and environmental drivers, with documented links to microbial…
Abstract Number: 2437 • ACR Convergence 2023
Translocation of Intestinal Bacteria to Axial and Peripheral Joints in a Model of Spondyloarthropathy
Benjamin Cai¹, Rabina Giri², Helen Benham³, Linda Rehaume¹, Geoffery Strutton³, Anne-Sophie Bergot¹ and Ranjeny Thomas⁴, ¹Frazer Institute, The University of Queensland, Woolloongabba, Australia, ²Mater Research Institute-UQ, Woolloongabba, Australia, ³Princess Alexandra Hospital, Woolloongabba, Australia, ⁴Frazer Institute, The University of Queensland, Brisbane, Australia
Background/Purpose: In spondylarthropathy (SpA), such as psoriatic arthritis (PsA) and ankylosing spondylitis (AS), arthritis is often associated with gut inflammation. After systemic β-1,3-glucan (curdlan) injection,…
Abstract Number: 1484 • ACR Convergence 2023
Ruminococcus Implicated in the Clinical Development of Lupus Nephritis: A Systematic Review of the Literature
Katarzyna Karpinska-Leydier¹, Arseni Khorochkov², Ambar Morales-Rodriguez¹, Nur Barlas¹, Sait Barlas¹, Abraham Bell¹, Magdy El-Din³ and Shristi Basnyat⁴, ¹Florida State University - Cape Coral Hospital, Cape Coral, FL, ²Poznan University of Medical Sciences, Poznań, Poland, ³Florida State University/Lee physicians group, Cape Coral, FL, ⁴Florida State University/Lee physicians group, Fort Myers, FL
Background/Purpose: Lupus nephritis (LN) is a serious complication of systemic lupus erythematosus (SLE). Current investigations implicate microbiome changes in disease pathogenesis, particularly pathobiont expansions of…

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