Abstracts tagged "Dendritic cells"

Abstract Number: 0669 • ACR Convergence 2022
Understanding How Type I Interferon Modulates Langerhans Cell ADAM17 to Promote Photosensitivity in Lupus
Thomas Li¹, Ethan Seltzer¹, Victoria Zyulina¹, Keila Veiga², Noa Schwartz³, Yurii Chinenov¹, David Oliver¹, Jose Lora⁴, Ali Jabbari⁵, Yong Liu¹, Hafsa Munir¹, William Shipman¹, Marvin Sandoval¹, Isabel Sollohub¹, william ambler¹, Bikash Mishra⁴, sarah taber¹, karen onel¹, Mehdi Rashighi⁶, james krueger⁷, Niroshana Anandasabapathy⁴, Carl Blobel¹ and theresa Lu¹, ¹Hospital for Special Surgery, New York, NY, ²Maria Fareri Children's Hospital, New York, NY, ³Albert Einstein College of Medicine, New York, NY, ⁴Weill Cornell Medicine, New York, NY, ⁵University of Iowa, Iowa City, IA, ⁶University of Massachusetts Medical School, Worcester, MA, ⁷Rockefeller University, New York, NY
Background/Purpose: Photosensitivity is a hallmark symptom of lupus erythematosus (LE), in which patients develop inflammatory skin lesions in response to ultraviolet radiation (UVR). In examining…
Abstract Number: 1690 • ACR Convergence 2022
Butyric Acid Suppresses Migration of Human Monocyte Derived Dendritc Cell by Inhibiting Actin Polymerization via mDia1 Inhibition
Takumi Nagamoto¹, takaichi okano², Yoshikazu Fujikawa³, Yuzuru Yamamoto², Hirotaka Yamada², Yo Ueda², Sho Sendo⁴ and Jun saegusa², ¹Kobe University, Kobe, Japan, ²Kobe University, Rheumatology, Kobe, Japan, ³Hyogo Prefectural Harima-Himeji General Medical Center, Himeji, Japan, ⁴University California, San Diego (UCSD), La Jolla, CA
Background/Purpose: Butyric acid is known to improve chronic inflammation such as inflammatory bowel disease and arthritis. Dendritic cells activate in inflammatory condition, migrate to regional…
Abstract Number: 1703 • ACR Convergence 2022
Potential Regulation of NK Cells by CD1c+ Dendritic Cells Through RIG-I/DDX60 Pathway Involved in Th17 Responses in Primary Sjögren Syndrome
Ildefonso Sánchez Cerrillo¹, Marta Calvet Mirabent¹, Ana Triguero², Diego Calzada Fraile³, Mariel Valdivia¹, Marta Ramírez³, Enrique Vázquez de Luis³, Alberto Benguría Filippini³, Roberto Moreno³, María Magdalena Adrados de llano¹, Hortensia de la Fuente¹, Ilya Tsukalov⁴, Emilia Roy Vallejo⁵, Almudena Ramiro³, Salvador Iborra⁶, Francisco Sánchez Madrid¹, Ana Dopazo³, Isidoro Gonzalez⁷, Santos Castañeda⁸ and Enrique Martín Gayo⁴, ¹Hospital La Princesa, Madrid, Spain, ²Hospital Universitario La Princesa, Madrid, Spain, ³Centro de Investigaciones Cardiovasculares, Madrid, Spain, ⁴Universidad Autónoma de Madrid, Madrid, Spain, ⁵Internal Medicine Department, Hospital Universitario La Princesa, Instituto de Investigación Sanitaria La Princesa (IIS-IP), Madrid, Spain, ⁶Universidad Complutense de Madrid, Madrid, Spain, ⁷Hospital Universitario de La Princesa, Madrid, Spain, ⁸Division of Rheumatology, Hospital Universitario de La Princesa, IIS-Princesa, Madrid, Spain
Background/Purpose: Altered Th17, CD8+ T cell and B cell adaptative immune responses in patients with primary Sjögren syndrome (pSS) have been characterized in salivary glands…
Abstract Number: 1709 • ACR Convergence 2022
Role of Corneal Langerhans Dendritic Cells in Lupus Keratitis
Ram Singh¹ and Angel Gutierrez², ¹UCLA David Geffen School of Medicine, Los Angeles, CA, ²University of California Los Angeles, Los Angeles, CA
Background/Purpose: Patients with lupus and other systemic autoimmune diseases develop ocular surface inflammation that is sometimes severe and debilitating. Pathogenesis of autoimmune keratitis remains unclear.…
Abstract Number: 1710 • ACR Convergence 2022
CCL2 Drives Interferon-enhanced Monocytosis in UV-mediated Skin Injury in Murine Lupus
Mitra Maz¹, Hong Shi², Sonya Wolf-Fortune³, Shannon Estadt³, Alayka Reddy³, Rachael Wasikowski³, Alex Tsoi³, Celine Berthier³ and J. Michelle Kahlenberg³, ¹University of Michigan Medical School, Ann Arbor, MI, ²Department of Internal Medicine/Division of Rheumatology, Vascular Biology Center, Augusta, GA, ³University of Michigan, Ann Arbor, MI
Background/Purpose: Systemic lupus erythematosus (SLE) is a heterogeneous autoimmune disease characterized by overproduction of type I interferons (IFNs) and sensitivity to ultraviolet (UV) light. Though…
Abstract Number: 0513 • ACR Convergence 2021
Spirulina Activates IFNγ via TLR4 in Dermatomyositis Skin and Peripheral Blood
DeAnna Diaz¹, Thomas Vazquez², Christina Bax³, Jay Patel⁴, Madison Grinnell⁵, Emily Keyes⁶, Yubin Li⁵ and Victoria Werth⁷, ¹Philadelphia College of Medicine, Philadelphia, PA, ²FIU Wertheim College of Medicine, Virginia Beach, VA, ³Corporal Michael J. Crescenz VAMC/ Department of Dermatology, U Penn, Philadelphia, PA, ⁴Corporal Michael J. Crescenz VAMC, Department of Dermatology, U Penn, Philadelphia, NJ, ⁵Corporal Michael J. Crescenz VAMC, Department of Dermatology, U Penn, Philadelphia, PA, ⁶Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania and Philadelphia VAMC, Philadelphia, PA, ⁷University of Pennsylvania, Philadelphia, PA
Background/Purpose: Our group has previously shown that Spirulina, a popular herbal supplement with purported immune boosting effects, is temporally associated with dermatomyositis (DM) onset and…
Abstract Number: 0693 • ACR Convergence 2021
Discovery of Antigen Specific CD4+ T Cells in Anti-HMGCR-positive Immune Mediated Necrotizing Myopathy
Eleni Tiniakou¹, Andrew Mammen² and Erika Darrah¹, ¹Johns Hopkins University, Baltimore, MD, ²National Institutes of Health, Bethesda, MD
Background/Purpose: Anti-3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGCR)-positive immune mediated necrotizing myopathy (anti-HMGCR+ IMNM) is a unique myopathy characterized by IgG autoantibodies against HMGCR and a strong…
Abstract Number: 1005 • ACR Convergence 2021
CD209/CD14+ Dendritic Cells Characterization in Rheumatoid and Psoriatic Arthritis Patients: Activation, Synovial Infiltration and Therapeutic Targeting
Viviana Marzaioli¹, Mary Canavan², Achilleas Floudas³, Keelin Flynn⁴, Ronan Mullan⁵, Douglas Veale⁶ and Ursula Fearon⁷, ¹Trinity College Dublin and University College Dublin, Dublin, Ireland, ²Trinity College, Santry, Ireland, ³Molecular Rheumatology Trinity Biomedical Sciences Institute, Dublin, Ireland, ⁴The Centre for Arthritis and Rheumatic Disease, EULAR Centre of Excellence, St. Vincent’s University Hospital and University College Dublin, Ireland, Dublin, Ireland, ⁵Tallaght University Hospital, Dublin, Ireland, ⁶University College Dublin, Dublin, Ireland, ⁷Trinity College Dublin, Dublin, Ireland
Background/Purpose: Dendritic cells (DCs) are a heterogeneous population of professional antigen-presenting cells which are at the interface between innate and adaptive immunity. A specific subset…
Abstract Number: 1500 • ACR Convergence 2021
Expression of Neuropilin-1 Is Significantly Increased in Dendritic Cells and CD4 + T Cells and It Correlates Disease Activity in the Patients with Systemic Lupus Erythematosus
Yunjung Choi¹, Eun-gyeong Lee¹, Yu-Mi Lee², Myeung-Su Lee³, Chang-Hoon Lee³, Chong Hyuk Chung³ and Wan-Hee yoo¹, ¹Research Institute of Clinical Medicine of Jeonbuk national university-Biomedical Research Institute of Jeonbuk national university hospital, Jeonju, Republic of Korea, ²Jeonbuk National University Hospital, Jeonju, Republic of Korea, ³Wonkwang University Hospital, Iksan, Republic of Korea
Background/Purpose: Neuropilin-1 (NRP-1) is a transmembrane glycoprotein that acts as a receptor of class III/IV semaphorins which role in the pathogenesis of autoimmune diseases. The…
Abstract Number: 1505 • ACR Convergence 2021
Inflammatory Dendritic Cell and Th17 Polarization in Mouse Model of Lupus Nephritis
Latha Prabha Ganesan¹, Noushin Saljoughian¹, James Turman¹, Murugesan Rajaram¹, Brad Rovin², Wael Jarjour¹ and Samir Parikh², ¹Ohio State University, Columbus, OH, ²Ohio State University Wexner Medical Center, Columbus, OH
Background/Purpose: We have recently identified inflammatory dendritic cells (InfDC) in human lupus kidneys. These cells are over expressed in LN patients compared to healthy controls.…
Abstract Number: L10 • ACR Convergence 2020
Targeting Plasmacytoid Dendritic Cells Improves Cutaneous Lupus Erythematosus Skin Lesions and Reduces Type I Interferon Levels: Results of a Phase 1 Study of VIB7734
Victoria Werth¹, Jodi Karnell², William Rees², Nanette Mittereder³, Li Yan², Yanping Wu³, Jorn Drappa², Gabor Illei² and John Ratchford², ¹University of Pennsylvania, Philadelphia, PA, ²Viela Bio, Gaithersburg, MD, ³Viela Bio, Gaithersburg
Background/Purpose: Plasmacytoid dendritic cells (pDCs) secrete large amounts of type I interferon (IFN) and other cytokines upon activation. pDCs migrate to sites of active disease…
Abstract Number: 0067 • ACR Convergence 2020
Functionally Mature CD1c+ Dendritic Cells Contribute to Synovial Inflammation in Rheumatoid Arthritis via STAT3
Mary Canavan¹, Viviana Marzaioli¹, Vipul Bhargava², Sunil Nagpal³, Phil Gallagher⁴, Conor Hurson⁵, Ronan Mullan⁶, Douglas Veale⁷ and Ursula Fearon¹, ¹Molecular Rheumatology, Trinity College Dublin, Dublin, Dublin, Ireland, ²Janssen Research & Development, Springhouse, PA, ³Janssen Research & Development, Collegeville, PA, ⁴St Vincents University Hospital, UCD, Dublin, Ireland, ⁵St Vincents University Hospital, UCD, Dublin, Dublin, Ireland, ⁶Adelaide and Meath Hospital, Dublin, Dublin, Ireland, ⁷EULAR Centre for Arthritis and Rheumatic Diseases, St Vincents University Hospital, UCD, Dublin, Dublin, Ireland
Background/Purpose: Myeloid Dendritic Cells (DC) are potent antigen presenting cells that can be subdivided into CD141+ and CD1c+ DC. We have previously reported an unacknowledged…
Abstract Number: 0075 • ACR Convergence 2020
CD209+/CD14+ Dendritic Cells Characterization in Rheumatoid versus Psoriasis Arthritis Patients
Viviana Marzaioli¹, Achilleas Floudas², Mary Canavan¹, Siobhán Wade³, Kieran Murray⁴, Ronan Mullan⁵, Conor Hurson⁶, Douglas Veale⁷ and Ursula Fearon¹, ¹Molecular Rheumatology, Trinity College Dublin, Dublin, Dublin, Ireland, ²Molecular Rheumatology Trinity Biomedical Sciences Institute, Dublin, Dublin, Ireland, ³Trinity College Dublin, Dublin, Ireland, ⁴Saint Vincent's University Hospital, Dublin 4, Dublin, Ireland, ⁵Adelaide and Meath Hospital, Dublin, Dublin, Ireland, ⁶St Vincents University Hospital, UCD, Dublin, Dublin, Ireland, ⁷EULAR Centre for Arthritis and Rheumatic Diseases, St Vincents University Hospital, UCD, Dublin, Dublin, Ireland
Background/Purpose: Dendritic cells (DCs) are a heterogeneous population of professional antigen-presenting cells which are at the interface between innate and adaptive immunity. There are different…
Abstract Number: 0770 • ACR Convergence 2020
Effect of Citrullination on the Processing and Presentation of Rheumatoid Arthritis Autoantigens
Ashley Curran¹, Jonathan Crawford¹ and Erika Darrah¹, ¹Division of Rheumatology, Johns Hopkins University, Baltimore, MD
Background/Purpose: Citrullinated proteins are hallmark targets of the autoimmune response in rheumatoid arthritis (RA), but the mechanism by which immune tolerance is broken to these self-proteins…
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…

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