Abstracts tagged "Apoptosis"

Abstract Number: 37 • 2017 ACR/ARHP Annual Meeting
β2-Glycoprotein I Binds to Necroptotic Cells and Serves As a Target for SLE Autoantibodies
David Salem¹, Rebecca Subang¹, Maziar Divangahi¹, Christian Pineau², Sasha Bernatsky³, Jerrold S. Levine⁴ and Joyce Rauch⁵, ¹Research Institute of the McGill University Health Centre, Montreal, QC, Canada, ²Division of Rheumatology, McGill University Health Centre, Montreal, QC, Canada, ³Divisions of Rheumatology and Clinical Epidemiology, McGill University Health Centre, Montreal, QC, Canada, ⁴Section of Nephrology, Department of Medicine, University of Illinois at Chicago and Jesse Brown Veterans Affairs Medical Center, Chicago, IL, ⁵Division of Rheumatology, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
Background/Purpose: β2-glycoprotein I (β2GPI), a phospholipid-binding protein, binds to apoptotic cells and serves as an antigenic target for autoantibodies from patients with systemic lupus erythematosus…
Abstract Number: 299 • 2017 ACR/ARHP Annual Meeting
Bik Plays an Important Role of Cell Proliferation Caused By Nitric Oxide in Rheumatoid Arthritis Synovium
Takeshi Ueha¹, Yoshitada Sakai¹, Kohjin Suzuki², Koji Fukuda³, Toshihisa Maeda³, Hanako Nishimoto³, Shinya Hayashi⁴, Yasushi Miura⁴, Ryosuke Kuroda³ and Akira Hashiramoto², ¹Division of Rehabilitation Medicine, Kobe University Graduate School of Medicine, Kobe, Japan, ²Department of Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan, ³Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan, ⁴Orthpaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
Background/Purpose: Nitric oxide (NO), a proinflammatory mediator responsible for various physiological processes, plays a central role in the pathogenesis of rheumatoid arthritis (RA). As a…
Abstract Number: 1008 • 2017 ACR/ARHP Annual Meeting
mtDNA Cybrids from OA Patients Are Less Efficient Using Glycolysis and Are More Susceptible to Apoptosis Under Stress Conditions
Mercedes Fernandez Moreno^1,2, Tamara Hermida-Gómez³, Andrea Dalamao-Fernandez⁴, M. Eugenia Vazquez Mosquera⁴, Estefanía Cortés-Pereira¹, Morena Scotece⁴, Sara Relaño-Fernandez⁵, Ignacio Rego-Pérez¹ and Francisco J Blanco⁶, ¹Servicio de Reumatología. Area Genomica. Instituto de Investigación Biomédica de A Coruña (INIBIC). Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. Universidade da Coruña (UDC), A Coruña, Spain, ²CIBER-BBM, Madrid, Spain, ³Rheumatology, INIBIC. Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. CIBER-BBN., A Coruña, Spain, ⁴Servicio de Reumatología. Area Genomica. Instituto de Investigación Biomédica de A Coruña (INIBIC). Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. Universidade da Coruña (UDC), A CORUÑA, Spain, ⁵Plataforma de Genómica. Instituto de Investigación Biomédica de A Coruña (INIBIC). Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. Universidade da Coruña (UDC), A Coruña, Spain, ⁶Servicio de Reumatología. Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. Universidade da Coruña (UDC). As Xubias, 15006. A Coruña. España, A Coruña, Spain
Background/Purpose: Previous studies have showed that chondrocytes from OA patients had mitochondrial alteration in comparison with healthy. However the role of mitochondria in the biological…
Abstract Number: 1011 • 2017 ACR/ARHP Annual Meeting
Mitochondrial Haplogroups-Mediated Methylation Regulates Apoptosis in Osteoathritis Cartilage
Ignacio Rego-Pérez¹, Estefanía Cortés-Pereira¹, Juan Fernández-Tajes Sr.², Mercedes Fernandez Moreno¹, Maria Eugenia Vazquez Mosquera¹, Sara Relaño-Fernandez³, Natividad Oreiro⁴, Carlos Fernandez-Lopez¹ and Francisco J Blanco¹, ¹Servicio de Reumatología. Area Genomica. Instituto de Investigación Biomédica de A Coruña (INIBIC). Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. Universidade da Coruña (UDC), A Coruña, Spain, ²The Wellcome Trust Center for Human Genetics. McCarthy´s Group. University of Oxford, Oxford, United Kingdom, ³Plataforma de Genómica. Instituto de Investigación Biomédica de A Coruña (INIBIC). Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. Universidade da Coruña (UDC), A Coruña, Spain, ⁴1) Servicio de Reumatología. Instituto de Investigación Biomédica de A Coruña (INIBIC). Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas. Universidade da Coruña (UDC). As Xubias, 15006. A Coruña, España, A Coruna, Spain
Background/Purpose: Recent studies revealed that haplogroup J associates with a decreased rate of incident knee Osteoarthritis. Among the functional characteristics of this haplogroup, lower rates…
Abstract Number: 1409 • 2017 ACR/ARHP Annual Meeting
Ursolic Acid Promotes Apoptosis of Rheumatoid Athritis Synovial Fibroblasts By Upregulating Noxa Expression and Recruiting E3 Ligase Mule to Degrade Mcl-1
Eugene Kim¹, Solomon Agere¹, Sadik Khuder² and Salahuddin Ahmed¹, ¹Department of Pharmaceutical Sciences, Washington State University, College of Pharmacy, Spokane, WA, ²Department of Medicine, University of Toledo, Toledo, OH
Background/Purpose: In our previous study, we discovered that ursolic acid (UA), a pentacyclic triterpenoid with anti-inflammatory properties, induces apoptosis in synovial fibroblasts from rheumatoid arthritis…
Abstract Number: 1835 • 2017 ACR/ARHP Annual Meeting
Microglial Defects Contribute to Neuropsychiatric Symptoms of Systemic Lupus Erythematosus
Hadijat Makinde¹, Philip J. Homan², Harris Perlman² and Carla Cuda², ¹Northwestern University, Chicago, IL, ²Department of Medicine Division of Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL
Background/Purpose: Neuropsychiatric symptoms of systemic lupus erythematosus (NP-SLE), including headaches, cognitive dysfunction and psychiatric disorders, appear in up to 75% of SLE patients and may…
Abstract Number: 2576 • 2017 ACR/ARHP Annual Meeting
Caspase 8 in Dendritic Cells Suppresses IRF5 Activation through Endosomal TLR Signaling to Prevent SLE-like Disease
FuNien Tsai¹, Harris Perlman² and Carla Cuda², ¹Medicine-Rheumatology, Northwestern University-Feinberg School of Medicine, Chicago, IL, ²Department of Medicine Division of Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL
Background/Purpose: Previous studies implicate dendritic cells (DCs) in the pathogenesis of systemic lupus erythematosus (SLE), yet the mechanisms underlying this involvement are not yet clear.…
Abstract Number: 2838 • 2017 ACR/ARHP Annual Meeting
Apoptotic Bodies Containing dsDNA Covalently Modified By Parvovirus B19 Non-Structural Protein NS1 Induce dsDNA Autoantibodies and End Organ Damage in Non-Autoimmune Mice
Stanley J. Naides¹, Kanoktip Puttaraksa², Heidi Pirttinen² and Leona Gilbert², ¹Immunology, Quest Diagnostics Nichols Institute, San Juan Capistrano, CA, ²Department of Biological and Environmental Science and Nanoscience Center, University of Jyvaskyla, Jyvaskyla, Finland
Background/Purpose: Persistent viral infections can induce aberrant immune responses and are implicated in the development of autoimmunity. Parvovirus B19 (B19V) non-structural protein, NS1, a helicase,…
Abstract Number: 2060 • 2016 ACR/ARHP Annual Meeting
Bim Suppresses the Development of SLE By Limiting Macrophage Inflammatory Responses
FuNien Tsai¹, Carla Cuda², Harris R. Perlman³, Philip J. Homan⁴, Salina Dominguez², Alexander Shaffer³, George Kenneth Haines III⁵ and Jack Hutcheson⁶, ¹Medicine-Rheumatology, Northwestern University-Feinberg School of Medicine, Chicago, IL, ²Northwestern University, Chicago, IL, ³Department of Medicine, Division of Rheumatology, Northwestern University Feinberg School of Medicine, Northwestern University, Chicago, IL, ⁴Medicine-Rheumatology, Northwestern University, Chicago, IL, ⁵Mount Sinai, New York, NY, ⁶UT Southwestern, Dallas, TX
Background/Purpose: The Bcl-2 family guards the mitochondrial apoptotic pathway. Among numerous Bcl-2 antagonists, only the loss of Bim in mice leads to the development of…
Abstract Number: 2557 • 2016 ACR/ARHP Annual Meeting
Tumor Necrosis Factor (TNF) Sensitizes Rheumatoid Synovial Fibroblasts to TRPA1-Mediated Calcium Flux, Anti-Proliferation and Cell Death
Torsten Lowin¹, Rainer Straub² and Georg Pongratz³, ¹Rheumatology, University Hospital Duesseldorf, Duesseldorf, Germany, ²Laboratory of Experimental Rheumatology and Neuroendocrine Immunology, Department of Internal Medicine, University Hospital Regensburg, Regensburg, Germany, ³Rheumatology - Hiller Research Center Rheumatology, University Hospital Duesseldorf, Duesseldorf, Germany
Background/Purpose: In rheumatoid arthritis (RA), synovial fibroblasts (SF) are one main contributor of joint destruction since they resist apoptosis and secrete pro-inflammatory cytokines and matrix…
Abstract Number: 2558 • 2016 ACR/ARHP Annual Meeting
Dissociation of the Inhibitory Apoptosis Stimulating Protein of p53 (iASPP) Binding with Transcription Factor p73 Induces Synovial Fibroblast Apoptosis in the Rheumatoid Joint
Chrong-Reen Wang¹, Shih-Yao Chen¹, Ai-Li Shiau², Ming-Fei Liu¹ and Chao-Liang Wu³, ¹Internal Medicine, National Cheng Kung University Medical College and Hospital, Tainan, Taiwan, ²Microbiology and Immunology, National Cheng Kung University Medical College, Tainan, Taiwan, ³Biochemistry and Molecular Biology, National Cheng Kung University Medical College, Tainan, Taiwan
Background/Purpose: Apoptosis-resistant synovial fibroblasts (SFs) constitute the major cell component of pannus tissues in rheumatoid arthritis (RA). In tumor cells, the binding of inhibitory…
Abstract Number: 2561 • 2016 ACR/ARHP Annual Meeting
A Novel Pharmacological Action of MTX on RA Fibroblast-like Synoviocytes Via Circadian Clock Genes
Kohjin Suzuki¹, Kohsuke Yoshida¹, Teppei Hashimoto², Kenta Kaneshiro¹, Ayako Nakai¹, Naonori Hashimoto¹, Yoshiko Kawasaki², Nao Shibanuma³, Natsuko Nakagawa⁴, Yoshitada Sakai⁵ and Akira Hashiramoto⁶, ¹Department of Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan, ²Department of Rheumatology, Kobe Kaisei Hospital, Kobe, Japan, ³Departmant of Orthopaedic Surgery, Kobe Kaisei Hospital, Kobe, Japan, ⁴Department of Orthopaedic Surgery, Konan-Kakogawa Hospital, Kakogawa, Japan, ⁵Division of Rehabilitation Medicine, Kobe University Graduate School of Medicine, Kobe, Japan, ⁶Department of Biophysics, Department of Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
Background/Purpose: The circadian rhythm is disrupted in patients with rheumatoid arthritis (RA), and we have shown that tumor necrosis factor(TNF)-ƒ¿ inhibits the expression of circadian…
Abstract Number: 3143 • 2016 ACR/ARHP Annual Meeting
The Caspase 8/RIPK3 Signaling Axis in Dendritic Cells Controls Joint Homeostasis Under Steady-State and Arthritic Conditions
Salina Dominguez¹, Harris R. Perlman² and Carla Cuda¹, ¹Northwestern University, Chicago, IL, ²Department of Medicine, Division of Rheumatology, Northwestern University Feinberg School of Medicine, Northwestern University, Chicago, IL
Background/Purpose: Rheumatoid arthritis (RA) manifests in persistent synovial inflammation, cellular infiltration and pro-inflammatory cytokine production, and results in progressive joint destruction. Dendritic cells (DCs) have…
Abstract Number: 810 • 2016 ACR/ARHP Annual Meeting
Microrna-125b As a Potential Anti-Fibrotic and Anti-Apoptotic Regulator in Systemic Sclerosis
Anastasiia Kozlova¹, Elena Pachera¹, Florian Renoux², Michal Rudnik¹, Britta Maurer¹, Astrid Jüngel³, Joerg H.W Distler⁴, Gabriela Kania¹ and Oliver Distler¹, ¹Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland, ²Depertment of Rheumatology, University Hospital Zurich, Schlieren, Switzerland, ³Ctr Exp Rheum, Univ Hosp Zurich / Zurich Ctr Integr Hum Physiol (ZIHP), Zurich, Switzerland, ⁴Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
Background/Purpose: MicroRNAs (miRs) are a class of small, noncoding RNAs that regulate many biological processes. Some microRNAs are involved in skin fibrosis. Here, we aimed…
Abstract Number: 1747 • 2016 ACR/ARHP Annual Meeting
Dissecting the Role of Single Complement Deficiencies in a Novel Model for Apoptotic Cell-Induced Lupus
Lucrezia Colonna¹, Clayton J. Sontheimer², Lena M. Tanaka³, Kelly L. Hudkins⁴, Charles E. Alpers⁴, Keith B. Elkon¹ and YuFeng Peng³, ¹Department of Medicine, Division of Rheumatology, University of Washington, Seattle, WA, ²Pediatric Rheumatology, University of Washington, Seattle, WA, ³Division of Rheumatology, University of Washington, Seattle, WA, ⁴Pathology, University of Washington, Seattle, WA
Background/Purpose: The role of complement in Systemic Lupus Erythematosus (SLE) is complex as complement deficiencies in early components of the classical pathway cause lupus with…

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