Abstracts tagged "IL-6R signaling"

Abstract Number: 6 • 2019 ACR/ARP Annual Meeting
A Novel Role for Extracellular Sulfatase-2 in Mediating IL-6-induced Adhesion and Migration Molecules in Human Rheumatoid Arthritis Synovial Fibroblasts
Ruby Siegel¹ and Salahuddin Ahmed ², ¹Washington State University Spokane, Spokane, WA, ²Department of Pharmaceutical Sciences, Washington State University, College of Pharmacy, Spokane, WA. Division of Rheumatology, University of Washington School of Medicine, Seattle, WA, Spokane, WA
Background/Purpose: Interleukin-6 (IL-6) promotes synovial hyperplasia by inducing mediators of adhesion, migration and leukocyte infiltration in rheumatoid arthritis (RA). The extracellular enzymes sulfatase-2 (Sulf-2) and…
Abstract Number: 1398 • 2019 ACR/ARP Annual Meeting
Sarilumab and Tocilizumab Receptor Occupancy (RO), and Effects on C-Reactive Protein (CRP) Levels, in Patients with Rheumatoid Arthritis (RA)
Christine Xu¹, Patrick Nolain ², Qiang Lu ³, Anne Paccaly ⁴, Melitza Iglesias-Rodriguez ⁵, Gregory St John ⁶, Chad Nivens ⁴, Rafael Maldonado ⁷, Tomonori Ishii ⁸, Ernest Choy ⁹ and Vanaja Kanamaluru ³, ¹Sanofi, Bridgewater, NJ, ²Sanofi-Aventis, Montpellier, France, ³Sanofi, Bridgewater, ⁴Regeneron Pharmaceuticals, Inc., Tarrytown, ⁵Sanofi Genzyme, Cambridge, MA, ⁶Regeneron Pharmaceuticals, Inc., Tarrytown, NY, ⁷Pompeu Fabra University, Barcelona, Spain, ⁸Tohoku University Hospital, Sendai, Japan, ⁹Cardiff University School of Medicine, Cardiff, United Kingdom
Background/Purpose: The in vitro binding affinity of sarilumab (KD 61.9 pM) for the human interleukin-6 receptor (IL-6R) is 15–22-fold higher than that of tocilizumab. This…
Abstract Number: 930 • 2018 ACR/ARHP Annual Meeting
Joint Location-Specific IL6 and JAK-STAT Signaling in Rheumatoid Arthritis (RA) Fibroblast-like Synoviocytes (FLS)
Deepa Hammaker¹, Gyrid Nygaard¹, Amanda Kuhs¹, Rizi Ai², David L. Boyle¹, Wei Wang³ and Gary S. Firestein¹, ¹Medicine, University of California San Diego, La Jolla, CA, ²University of California San Diego, La Jolla, CA, ³Chemistry and Biochemistry, University of California San Diego, La Jolla, CA
Background/Purpose: Recent studies suggest that epigenetic marks distinguish FLS isolated from different joints in RA. Hip and knee joint-derived FLS, in particular, have distinctive DNA…
Abstract Number: 1825 • 2018 ACR/ARHP Annual Meeting
Rheumatoid Arthritis Associated Haploinsufficiency in PTPN2 Enhances Severity of IL-17 Mediated Autoimmune Arthritis
Mattias N. D. Svensson¹, Karen M. Doody², Shen Yang³, Dennis J. Wu⁴, Cristiano Sacchetti⁵, Isabelle Aubry⁶, Piotr Mydel⁷, Mitchell Kronenberg⁸, Michel L. Tremblay⁹ and Nunzio Bottini², ¹Department of Medicine, University of California San Diego, La Jolla, CA, ²Cellular Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, ³Medicine, University of California San Diego, La Jolla, CA, ⁴University of California San Diego, San Diego, CA, ⁵Rheumatology, University of California San Diego, La Jolla, CA, ⁶Biochemistry, McGill University, Montreal, QC, Canada, ⁷University of Bergen, Bergen, Norway, ⁸Developmental Immunology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, ⁹Biochemistry, McGill University, Montréal, QC, Canada
Background/Purpose: Genetic polymorphisms at the PTPN2 locus, which encodes the tyrosine phosphatase TC-PTP, cause reduced gene expression and are linked to rheumatoid arthritis (RA). PTPN2…
Abstract Number: 972 • 2017 ACR/ARHP Annual Meeting
JAK/STAT Mediated Inhibition of Mir-23a~24-2~27a Cluster Potentiates Activation of CD14+ Monocytes in Treatment-Resistant RA
Marina Frleta-Gilchrist, Donna McIntyre, Aziza Elmesmari, Lynn Stewart, Derek Baxter, Mariola Kurowska-Stolarska, Derek Gilchrist and Iain B. McInnes, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
Background/Purpose: While emerging and existing treatments of RA allow better options and clinical outcomes for patients, studies informing drug resistant states and further clinical therapeutic…
Abstract Number: 1568 • 2017 ACR/ARHP Annual Meeting
Existence of IL-6 and IL-17 Mediated Inflammation Amplifier Loop in Reactive Arthritis
Ramnath Misra¹, Sandeep Kumar², Rajeev Singh³, Abhisek Singh⁴, Daisuke Kamimura⁵, Smriti Chaurasia², Yasunobu Aria⁶, Tori Austria⁷, Ratnadeep Mukherjee⁸, Balachandran Ravindran⁹, Vikas Agarwal² and Masaaki Murakami¹⁰, ¹Clinical Immunology, Sanjay Gandhi Postgraduate of Medical Sciences, Lucknow, India, ²Clinical Immunology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India, ³Biochemistry, King George Medical University, Lucknow, India, ⁴Division of Molecular Neroimmunology, Post Doctoral Fellow, Sapporo, Japan, ⁵Molecular Neuroimmunology, Lecturer, Sapporo 060-0815,, Japan, ⁶Division of Molecular Neuroimmunology, Assistant Professor, Sapporo 060-0815, Japan, ⁷Division of Molecular Neuroimmunology, Special appointed - Assistant Professor, Sapporo 060-0815, Japan, ⁸Institute of Life Sciences, Ph D student, Bhubaneswar, India, ⁹Institute of Life Sciences, Distinguished Scientist, Bhubaneswar, India, ¹⁰Institute of Genetic Medicine, Director, Sapporo 060-0815, Japan
Background/Purpose: F759 mice with a single amino-acid substitution in signal transducer subunit of IL-6 receptor gp130 (Y759F) develops arthritisspontaneously due to IL-17A and IL-6 mediated…
Abstract Number: 2793 • 2017 ACR/ARHP Annual Meeting
Joint Location-Specific JAK-STAT Signaling in Rheumatoid Arthritis (RA) Fibroblast-like Synoviocytes (FLS)
Deepa Hammaker¹, Gyrid Nygaard¹, David L. Boyle², Rizi Ai³, Wei Wang⁴ and Gary S. Firestein⁵, ¹Medicine, UC San Diego, La Jolla, CA, ²University of California San Diego, La Jolla, CA, ³UC San Diego, La Jolla, CA, ⁴Chemistry and Biochemistry, UC San Diego, La Jolla, CA, ⁵Medicine, University of California San Diego, La Jolla, CA
Background/Purpose: Aberrant epigenetic marks in RA FLS contribute to disease pathogenesis and aggressive FLS behavior. Computational data also suggest that RA FLS isolated from different…
Abstract Number: 60 • 2016 ACR/ARHP Annual Meeting
A Single Nucleotide Polymorphism of IL6-Receptor Is Associated with Response to Tocilizumab in Rheumatoid Arthritis: Results from Toci and ROC Studies
Cécile Luxembourger¹, Adeline Ruyssen-Witrand², Yannick Degboé³, Alain G. Cantagrel¹, Arnaud CONSTANTIN⁴, Philippe Gaudin⁵, Christian Jorgensen⁶, Jean-Francis Maillefert⁷, Hubert Marotte Sr.⁸, Delphine Nigon⁹, Daniel Wendling¹⁰, Jacques-Eric Gottenberg¹¹ and Yves-marie Pers¹², ¹Rheumatology, Centre Hospitalier Universitaire, Toulouse Purpan, Toulouse, France, ²Rheumatology Center, Purpan University Hospital, Toulouse, France, ³Rheumatology, Rheumatology Center, Purpan University Hospital, Toulouse, France, ⁴Rheumatology, CHU Purpan - Hôpital Pierre-Paul Riquet, Toulouse, France, ⁵Rheumatology, Grenoble University Hospital, France, Grenoble, France, ⁶Inserm u844, Unite ImmunoRhumatologie Therapeutique, Montpellier, France, ⁷Rheumatology, University Hospital, Dijon, France, ⁸CHU de St Etienne, Service de rhumatologie, St Etienne, France, ⁹CHU Purpan, Toulouse, France, ¹⁰Rheumatology, Besançon university hospital, Besançon, France, ¹¹Department of Rheumatology, Strasbourg University Hospital, Strasbourg, France, ¹²coordination RIC SUD, Montpellier, France
Background/Purpose: Biological agents (boDMARDs) have modified the therapeutic management of patients with rheumatoid arthritis (RA). However, boDMARDs can induce sustained remission in only 30% of…
Abstract Number: 1029 • 2016 ACR/ARHP Annual Meeting
Functional Genetics of PTPN2 in Rheumatoid Arthritis: Haploinsufficiency of PTPN2 Promotes Severity of Th17-Cell Mediated Autoimmune Arthritis
Mattias N. D. Svensson^1,2, Karen M. Doody¹, Cristiano Sacchetti^1,2, Dennis J. Wu¹, Gisen Kim³, Annelie Hellvard⁴, Brith Bergum⁴, Piotr Mydel⁴, Mitchell Kronenberg³, Michel L. Tremblay⁵ and Nunzio Bottini^1,2, ¹Cellular Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, ²Department of Medicine, University of California, San Diego, La Jolla, CA, ³Developmental Immunology, La Jolla Institute for Allergy and Immunology, La Jolla, CA, ⁴Clinical Science, Broegelmann Research Laboratory, Bergen, Norway, ⁵Goodman Cancer Centre, McGill University, Montréal, QC, Canada
Background/Purpose: Genome-wide association studies have linked polymorphisms in the PTPN2 locus to rheumatoid arthritis (RA). PTPN2 encodes the tyrosine phosphatase TC-PTP, an important regulator of…
Abstract Number: 1581 • 2016 ACR/ARHP Annual Meeting
The Combination of IL-6 and IL-6 Receptor Levels As a Biomarker of Response to Tocilizumab in Rheumatoid Arthritis Patients
Cesar Diaz-Torne¹, Maria A. Ortiz², Patricia Moya³, M. Victoria Hernández⁴, Delia Reina⁵, Ivan Castellvi⁶, Juan Jose De Agustin⁷, Diana De La Fuente⁸, Hector Corominas^9,10, Raimon Sanmarti¹¹, Josep Maria De Llobet Zubiaga¹ and Silvia Vidal², ¹Rheumatology, Hospital Universitari de la Santa Creu i Sant Pau, Barcelona, Spain, ²Institut de Recerca Sant Pau, Barcelona, Spain, ³Hospital de la Santa Creu i Sant Pau, Barcelona, Spain, ⁴Rheumatology Department, Hospital Clínic de Barcelona, Barcelona, Spain, ⁵Rheumatology, Hospital de Sant Joan Despí Moisès Broggi, Barcelona, Spain, ⁶Rheumatology, Hospital de Sant Pau, Barcelona, Spain, ⁷Rheumatology, Hospital Baix de Llobregat, Barcelona, Spain, ⁸Rheumatology, Hospital de Viladecans, Barcelona, Spain, ⁹Rheumatology, Hospital Moises Broggi, Barcelona, Spain, ¹⁰Servei de Reumatologia, Hospital Moises Broggi, Barcelona, Spain, ¹¹Arthritis Unit. Rheumatology, Arthritis Unit. Rheumatology Department. Hospital Clínic, Barcelona, Spain
Background/Purpose: Several predictors of response to tocilizumab have been described. They include a low HAQ, high baseline CRP or NK levels and certain IL-6R polymorphisms.…
Abstract Number: 2104 • 2016 ACR/ARHP Annual Meeting
Treatment with Tocilizumab Decreases CXCL13 Expression in Cultured Temporal Arteries from Patients with Giant Cell Arteritis
Nekane Terrades-Garcia¹, Joana Daradoumis², Ester Planas-Rigol², Marc Corbera-Bellalta¹, Sergio Prieto-González², Georgina Espígol-Frigolé² and Maria C. Cid³, ¹Vasculitis Research Unit. Department of Autoimmune Diseases, Hospital Clínic. University of Barcelona. IDIBAPS, Barcelona, Spain, ²Department of Autoimmune and Systemic Diseases, Hospital Clínic. University of Barcelona. IDIBAPS, Barcelona, Spain, ³Autoimmune and Systemic Diseases, Hospital Clínic. University of Barcelona. IDIBAPS, Barcelona, Spain
Background/Purpose: IL-6 has been considered a biomarker of disease activity in GCA and a potential therapeutic target. However, the functional role of IL-6 in GCA…
Abstract Number: 2155 • 2016 ACR/ARHP Annual Meeting
Crosstalk Between IL-6 and TNF-Alpha Signaling Pathway in Rheumatoid Arthritis Synovial Fibroblasts
Alvaro Valin¹, Yolanda Ruano², Manuel J. Del Rey³, Carmen M. García-Herrero³, Eduardo Martín-Guerrero¹, Beatriz Bravo⁴, Juan D. Cañete⁵, José L. Rodríguez-Peralto² and Jose L. Pablos^3,6, ¹Grupo de Enfermedades Inflamatorias y Autoimmunes, Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain, ²Pathology Department, Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain, ³Grupo de Enfermedades Inflamatorias y Autoinmunes, Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain, ⁴Servicio de Traumatología y Cirugía Ortopédica, Hospital 12 de Octubre, Madrid, Spain, ⁵Rheumatology, Hospital Clinic and IDIBAPS, Barcelona, Spain, ⁶Servicio de Reumatología, Hospital 12 de Octubre, Madrid, Spain
Background/Purpose: Although elevated IL-6 and its soluble receptor (sIL6R) have been found in the serum and synovium of arthritic patients, the molecular mechanisms by which…
Abstract Number: 2604 • 2016 ACR/ARHP Annual Meeting
Ultrasound and Immunological Changes and Associations after One Year of IL-6/IL- 6R Blockade with Tocilizumab in Rheumatoid Arthritis Patients
Cesar Diaz-Torne¹, Juan Jose De Agustin², Patricia Moya¹, Maria A. Ortiz³, Delia Reina⁴, Carme Moragues⁵, Sergi Ros⁶, Emili Gomez⁷, Enrique Casado Burgos⁸, Eli Garcia⁹, Manel Pujol¹⁰, Maria Pilar Lisbona Perez¹¹, Andrés Ponce¹², V Torrente¹³, P. Estrada¹⁴, Silvia Vidal³ and ECOCAT group, ¹Rheumatology, Hospital Universitari de la Santa Creu i Sant Pau, Barcelona, Spain, ²Rheumatology, Hospital Baix de Llobregat, Barcelona, Spain, ³Institut de Recerca Sant Pau, Barcelona, Spain, ⁴Rheumatology, Hospital de Sant Joan Despí Moisès Broggi, Barcelona, Spain, ⁵Rheumatology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain, ⁶Rheumatology, Hospital de Viladecans, Viladecans, Spain, ⁷Rheumatology, Hospital Clínic, Barcelona, Spain, ⁸Hospital Universitari Parc Taulí, Sabadell, Spain, ⁹Rheumatology, Hospital de Mollet, Mollet, Spain, ¹⁰Hospital Mútua de Terrassa, Terrassa, Spain, ¹¹Rheumatology, Hospital de Sabadell, Sabadell, Spain, ¹²Rheumatology. Internal Medicine, Hospital General de Granollers, Granollers, Spain, ¹³Hospital de L'Hospitalet, L'Hospitalet de Llobregat, Spain, ¹⁴Rheumatology, Hospital Moises Broggi, Barcelona, Spain
Background/Purpose: Management of RA patients has improved in the last two decades in part with the use of ultrasound (US) in daily clinical practice. The…
Abstract Number: 92 • 2015 ACR/ARHP Annual Meeting
Variation at Interleukin-6 Receptor Gene Is Associated to Joint Damage in Rheumatoid Arthritis
María López-Lasanta¹, Antonio Julià¹, Joan Maymo², Benjamin Fernandez Gutierrez³, Inmaculada Ureña⁴, Francisco J. Blanco⁵, Juan D. Cañete⁶, Mercedes Alperi-López⁷, Alejandro Olivé⁸, Hector Corominas⁹, Jesús Tornero¹⁰, Alba Erra¹¹, Miriam Almirall¹², Nuria Palau¹³, Ana M. Ortiz Garcia¹⁴, Gabriela Avila¹³, Luis Rodriguez-Rodriguez¹⁵, Arnald Alonso¹, Raül Tortosa¹, Isidoro González-Alvaro¹⁶ and Sara Marsal¹, ¹Rheumatology Research Group, Vall d'Hebron Hospital Research Institute, Barcelona, Spain, ²Rheumatology, Hospital del Mar, Barcelona, Spain, ³Department of Rheumatology, Hospital Clínico San Carlos, Madrid, Spain, ⁴Rheumatology service, Hospital Regional Universitario Carlos Haya, Malaga, Spain, ⁵Osteoarticular and Aging Research Lab, INIBIC–Complejo Hospitalario Universitario A Coruña, A Coruña, Spain, ⁶Arthritis Unit. Rheumatology, Arthritis Unit. Rheumatology Department. Hospital Clínic, Barcelona, Spain, ⁷Department of Rheumatology, Hospital Universitario Central de Asturias, Asturias, Spain, ⁸Rheumatology, Hospital Germans Trias i Pujol, Badalona, Spain, ⁹Rheumatology, Hospital de Sant Joan Despí Moisès Broggi, Barcelona, Spain, ¹⁰Rheumatology Department, Hospital Universitario Guadalajara, Guadalajara, Spain, ¹¹Rheumatology, Rheumatology Hospital San Rafael, Barcelona, Spain, ¹²Rheumatology Department, Hospital del Mar, Barcelona, Spain, ¹³Vall d'Hebron Hospital Research Institute, Barcelona, Spain, ¹⁴Rheumatology, H.U. La Princesa, Madrid, Spain, ¹⁵Department of Rheumatology, Hospital Clinico San Carlos, Madrid, Spain, ¹⁶Rheumatology, Hospital Universitario de La Princesa. IIS La Princesa, Madrid, Spain
Background/Purpose: Interleukin-6 (IL-6) cytokine signaling is key in Rheumatoid Arthritis (RA) pathophysiology. Blocking IL-6 receptor (IL6R) has proven to be a highly effective treatment to prevent joint…
Abstract Number: 1635 • 2015 ACR/ARHP Annual Meeting
Development of New Bioassay System Measuring Inhibitory Strength of IL-6/STAT3 Signal Under Tocilizumab Treatment in Rheumatoid Arthritis Patients
Shuntaro Saito¹, Katsuya Suzuki¹, Kunihiro Yamaoka¹ and Tsutomu Takeuchi², ¹Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan, ²Keio University School of Medicine, Tokyo, Japan
Background/Purpose: Tocilizumab (TCZ) is a IL-6 receptor blockade, administered intravenously every 4 weeks and efficiently inhibits IL-6/STAT3 signaling pathway. We have previously reported the usefulness…

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