Abstracts tagged "microbiome"

Abstract Number: 0400 • ACR Convergence 2025
Recent Antibiotic Exposure and Response to Treatment of Juvenile Idiopathic Arthritis
Daniel Horton¹, Charu Verma², Sanika Rege², Alicia Iizuka², Matthew Iozzio³, Dawn Koffman³, Stephen Crystal⁴, Amy Davidow⁵, Tobias Gerhard², Lauren Parlett⁶, Carlos Rose⁷ and Brian Strom⁸, ¹Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, ²Rutgers Center for Pharmacoepidemiology and Treatment Science, Institute for Health, Health Care Policy and Aging Research, Rutgers University, New Brunswick, NJ, USA, New Brunswick, NJ, ³Rutgers Center for Pharmacoepidemiology and Treatment Science, Institute for Health, Health Care Policy and Aging Research, Rutgers University, New Brunswick, NJ, USA, New Brunswick, ⁴Rutgers Center for Health Services Research, Institute for Health, Health Care Policy and Aging Research, New Brunswick, NJ, ⁵New Jersey Medical School, Newark, NJ, ⁶Carelon Research, Inc, Wilmington, DE, ⁷Thomas Jefferson University, Wilmington, DE, ⁸Rutgers Biomedical and Health Sciences, New Brunswick
Background/Purpose: Juvenile idiopathic arthritis (JIA), the most common pediatric rheumatic disease, has been tied to microbiome disruption (dysbiosis). Dysbiosis in adults with arthritis affects response…
Abstract Number: 2639 • ACR Convergence 2025
Gut Microbiome Signatures Forecast Clinical Response to Methotrexate in Treatment-Naïve Early Rheumatoid Arthritis
VINOD GUPTA¹, Adam Koller¹, Benjamin Hur¹, Marissa Bailey¹, Kara Delger², Elena myasoedova¹, Vanessa Kronzer¹, John Davis¹ and Jaeyun Sung¹, ¹Mayo Clinic, ROCHESTER, MN, ²Mayo Clinic, St Charles, MN
Background/Purpose: Oral methotrexate (MTX) is the cornerstone treatment for newly diagnosed rheumatoid arthritis (RA), yet up to 50% of patients do not respond adequately. Early…
Abstract Number: 1329 • ACR Convergence 2025
Relationship Between Circulating Bacterial Small RNAs, Methotrexate Response, and Microbiome in New Onset Rheumatoid Arthritis
Carolina Ramirez-Becerra¹, Tulsi Joishy², Sheau-Chiann Chen², Marisol Ramirez-Solano², Quanhu Sheng², Peter Turnbaugh³, Carles Ubeda⁴, Renuka Nayak⁵, Rebecca Blank⁶, Jose Scher⁷ and Michelle Ormseth², ¹Vanderbilt University Medical Center, Nashville, TN, ²Vanderbilt University Medical Center, Nashville, ³University of California, San Francisco, San Francisco, CA, ⁴Fisabio, Madrid, ⁵University of California, San Francisco (UCSF), San Francisco, CA, ⁶NYU Langone Health, New York, NY, ⁷New York University School of Medicine, New York, NY
Background/Purpose: Microbiome and microbial products are possible contributors and predictors to methotrexate (MTX) response variability. Bacterial small RNAs (sRNAs) are found in human plasma and…
Abstract Number: 0322 • ACR Convergence 2025
Metabolites Reflective of the Gut Microbiome Relate to Future Incident Knee Osteoarthritis: Data from the Osteoarthritis Initiative
Jeffrey Driban¹, Shike Xu², Timothy McAlington³, John Haran⁴, Julieann Patarini⁴ and Bing Lu⁵, ¹University of Massachusetts Chan Medical School, Marlborough, NH, ²University of Connecticut Health Center, Farmington, CT, ³UMass Chan School of Medicine, Arlington, MA, ⁴UMass Chan Medical School, Worcester, MA, ⁵UConn Health Center, Newton, MA
Background/Purpose: Numerous cross-sectional and animal studies have linked an altered gut microbiome to osteoarthritis (OA). Human studies are needed to explore the association between the…
Abstract Number: 2622 • ACR Convergence 2025
Oral Microbiome Dysbiosis and Oral-gut Microbial Network Disruption in Hand Osteoarthritis: Data from the Xiangya Osteoarthritis Study
Jiatian Li¹, Yadan Xiao², Tuo Yang¹, david Hunter³, Weiya Zhang⁴, Michael Doherty⁴, Yuqing Zhang⁵, Zidan Yang¹, Yilun Wang¹, Dongxing Xie¹, Changjun Li¹, Wei Li¹, Zeqin Wen¹, Chao Zeng¹, Guanghua Lei¹ and Jie Wei¹, ¹Xiangya Hospital, Central South University, Changsha, Hunan, China (People's Republic), ²Xiangya School of Public Health, Central South University, Changsha, Hunan, China (People's Republic), ³Sydney Musculoskeletal Health, University of Sydney, St Leonards, New South Wales, Australia, ⁴School of Medicine, University of Nottingham, Nottingham, United Kingdom, ⁵Massachusetts General Hospital, Quincy, MA
Background/Purpose: The oral microbiome plays a critical role in modulating systemic inflammation and maintaining immune homeostasis, partly through its interactions with the gut microbiome. Although…
Abstract Number: 1119 • ACR Convergence 2025
Microbial activation of cytotoxic CD8⁺ T cells promotes skin immune-related adverse events in patients treated with immune checkpoint inhibitors
Shady Younis¹, Suman Acharya¹, Gayathri Swaminathan¹, Heidi Wong¹, Hannah Kim¹, Alec Eschholz¹, Subramanya Hegde², Andrew McKnight³, William Robinson⁴ and Lisa Zaba¹, ¹Stanford University, Stanford, CA, ²Sanofi US, New Jersey, MA, ³Sanofi US, Cambridge, MA, ⁴Stanford University, Palo Alto, CA
Background/Purpose: Immune checkpoint inhibitors (ICIs) have transformed cancer therapy, but their use is often limited by immune-related adverse events (irAEs), particularly in barrier tissues such…
Abstract Number: 0101 • ACR Convergence 2025
Enrichment of putative bacteria-reactive gut-derived IL-17+ tissue resident memory helper T cells in arthritic ankles in the SKG mouse model of spondyloarthritis
Benjamin Cai¹, Megan Soon², Zewen Kelvin Tuong², Mark Morrison², Anne-Sophie Bergot³ and Ranjeny Thomas⁴, ¹Frazer Institute, The University of Queensland, Brisbane, Queensland, Australia, ²Frazer Institute, The University of Queensland, Brisbane, Australia, ³Frazer Institute, The University of Queensland, Woolloongabba, Queensland, Australia, ⁴Frazer Institute, University of Queensland, Brisbane, Queensland, Australia
Background/Purpose: In spondyloarthropathy (SpA), arthritis is often associated with gut inflammation. The strong genetic association with HLA-B27 implicates involvement of T cells, but how gut…
Abstract Number: 2590 • ACR Convergence 2025
Translating findings on urate-metabolizing bacterial genes and urate levels at the human population level: a gut microbiome analysis of three independent cohorts of men and women
Sharan Rai¹, Natalie McCormick², Xochitl Morgan³, Matthew Nayor⁴, Robert Terkeltaub⁵, Dylan Dodd⁶, Lama Nazzal⁷, Huilin Li⁷, Gary Curhan⁸, Curtis Huttenhower³ and Hyon K. Choi⁹, ¹Massachusetts General Hospital/Harvard Medical School, Boston, MA, ²Massachusetts General Hospital, Boston, MA, ³Harvard T.H. Chan School of Public Health, Boston, ⁴Boston University, Boston, ⁵Retired, San Diego, CA, ⁶Stanford University, Palo Alto, CA, ⁷NYU Langone, New York, NY, ⁸Brigham and Women's Hospital, Boston, ⁹MASSACHUSETTS GENERAL HOSPITAL, Lexington, MA
Background/Purpose: Approximately 21% of US adults have hyperuricemia, the causal precursor for gout. Human cells do not degrade urate (due to uricase gene inactivation). However,…
Abstract Number: 1032 • ACR Convergence 2025
Exploring the role of the gut microbiome in gout: Prospective analysis of dietary fiber intake and the risk of gout
Sharan Rai¹, Natalie McCormick², Chio Yokose³, Robert Terkeltaub⁴, Dylan Dodd⁵, Lama Nazzal⁶, Huilin Li⁶, Qi Sun⁷ and Hyon K. Choi⁸, ¹Massachusetts General Hospital/Harvard Medical School, Boston, MA, ²Massachusetts General Hospital, Boston, MA, ³Massachusetts General Hospital, Waltham, MA, ⁴Retired, San Diego, CA, ⁵Stanford University, Palo Alto, CA, ⁶NYU Langone, New York, NY, ⁷Harvard T.H. Chan School of Public Health, Boston, ⁸MASSACHUSETTS GENERAL HOSPITAL, Lexington, MA
Background/Purpose: The role of the gut microbiome has been increasingly implicated in the pathogenesis of gout. For instance, gout patients have shown depletions of bacteria…
Abstract Number: 0088 • ACR Convergence 2025
Imbalance of Inflammation-Regulating Microorganisms and Predicted Metabolomic Pathways Associates With Disease Evolution in Individuals At-Risk for Rheumatoid Arthritis
Lyndsey Cole¹, Brendan Allen², Sucai Liu², Marie Feser³, Le Yi Phyo², LauraKay Moss², Daniel Frank², J. Kirk Harris², Kristen Demoruelle⁴, Kevin Deane⁵, V. Michael Holers⁶ and Kristine Kuhn⁷, ¹University of Colorado School of Medicine, Centennial, CO, ²University of Colorado School of Medicine, Aurora, CO, ³University of Colorado Anschutz Medical Campus, Aurora, CO, ⁴University of Colorado Anschutz Medical Campus, Golden, CO, ⁵University of Colorado Denver Anschutz Medical Campus, Aurora, CO, ⁶University of Colorado Anschutz Medical Campus, Aurora, ⁷²⁰²² - ²⁰²³ / Adult/ University of Colorado, Aurora, CO
Background/Purpose: The mucosal origins hypothesis of RA proposes that immune responses to microorganisms at mucosal sites (e.g. intestine) lead to systemic inflammation and autoimmunity. Little…
Abstract Number: 1572 • ACR Convergence 2024
Associations Between the Gut Microbiota, Ultra-Processed Food Intake, and Gastrointestinal Tract Symptoms in Patients with Systemic Sclerosis
Ju Young Lee¹, Swapna Joshi², Arissa Young³, Jen Labus², Zsuzsanna McMahan⁴, Ezinne Aja², Jonathan Jacobs² and Elizabeth Volkmann⁵, ¹David Geffen School of Medicine, UCLA, Los Angeles, CA, ²UCLA, Los Angeles, ³UCLA, Los Angeles, CA, ⁴UTHealth Houston Division of Rheumatology, Houston, TX, ⁵University of California, Department of Medicine, Los Angeles, CA, USA, Los Angeles
Background/Purpose: Alterations in the gastrointestinal (GI) microbiome (i.e., dysbiosis) are a feature of systemic sclerosis (SSc) [1]. Diet is a known modifier of the GI…
Abstract Number: 1585 • ACR Convergence 2024
Characterization of the Fecal Metabolome in Early Systemic Sclerosis
Arissa Young¹, Kristofer Andreasson², Jen Labus³, Nedas Matulianos⁴, Blake Wilde¹, Jonathan Jacobs³, Heather Christofk⁴ and Elizabeth Volkmann⁵, ¹UCLA, Los Angeles, CA, ²Lund University, Lund, Sweden, ³UCLA, Los Angeles, ⁴University of California Los Angeles, Los Angeles, CA, ⁵University of California, Department of Medicine, Los Angeles, CA, USA, Los Angeles
Background/Purpose: Previous studies have shown that alterations in gut microbiota are present early in systemic sclerosis (SSc) (Andréasson et al. 2022) and are associated with…
Abstract Number: 1708 • ACR Convergence 2024
Unveiling the Uterine-Joint Axis: Dysbiosis and Subclinical Uterine Inflammation in Female Axial Spondyloarthritis Pathogenesis
Daniele Mauro¹, Matteo Vecellio², Anne-Sophie Bergot³, Eva Schmid⁴, Giulio Forte⁵, Alessia Stingo⁶, Alessia Salzillo⁵, Aldo Pastore⁷, Paolo Aretini⁷, Francesca Di Lorenzo⁷, Antonio ciancio⁵, Ilenia Pantano⁵, Gabriele Saccone⁸, Fulvio Zullo⁹, carlo Maurizio Montecucco¹⁰, Aroldo Rizzo¹¹, Georg Schett¹², Ranjeny Thomas¹³, Mario Zaiss¹⁴ and Francesco Ciccia¹⁵, ¹University of Campania, Italy, Naples, Naples, Italy, ²Fondazione Pisana per la Scienza ONLUS, Pisa, Italy, ³Frazer Institute, University of Queensland, Brisbane, Australia, ⁴Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Rheumatology and Immunology, Erlangen, Erlangen, Germany, ⁵University of Campania L. Vanvitelli, Naples, Italy, ⁶University of Campania L. Vanvitelli, Nasples, Italy, ⁷Fondazione Pisana per la Scienza ONLUS, Giuliano Terme, Italy, ⁸University Federico II of Naples, Naples, Italy, ⁹University of Catanzaro, Catanzaro, Italy, ¹⁰Unit of Rheumatology, Fondazione IRCCS Policlinico San Matteo and University of Pavia, Pavia, Italy, ¹¹Azienda Ospedaliera Ospedali riuniti Villa Sofia Cervello,, Palermo, Italy, ¹²Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany, ¹³University of Queensland, Brisbane, Australia, ¹⁴Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universittsklinikum Erlangen, Erlangen, Germany; 2 Deutsches Zentrum für Immuntherapie (DZI), Erlangen, Germany, ¹⁵Università degli studi della Campania Luigi Vanvitelli, Naples, Italy
Background/Purpose: Numerous studies exploring gender differences in axial spondyloarthritis (AxSpA) have noted that women exhibit distinct disease manifestations. Yet, a definitive pathophysiological distinction of these diverse…
Abstract Number: 0012 • ACR Convergence 2024
Dichotomous Expression of CXCR3 and CCR9 and Relationship to Intestinal Permeability in B Cells in Rheumatoid Arthritis
Ken Yasaka, Ruoqiao Wang, Nida Pellett, Daria Krenitsky, Juilee Thakar and Jennifer Anolik, University of Rochester Medical Center, Rochester, NY
Background/Purpose: The gut is a key mucosal tissue that can impact the immune system and contribute to systemic inflammation in the setting of increased intestinal…
Abstract Number: 1851 • ACR Convergence 2024
Aberrant Tfh Cells Generated by Th17 Cell Plasticity in the Gut Promote Autoimmune Arthritis
Joyce Wu, The Ohio State University, Columbus, OH
Background/Purpose: Much remains unknown regarding T follicular helper 17 (Tfh17) cells in autoimmunity. We previously showed, and here ask why, egress of gut segmented filamentous…

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