Abstracts tagged "Apoptosis"

Abstract Number: 1069 • 2012 ACR/ARHP Annual Meeting
The Effects of TNF Stimulation On Control of Apoptosis in Neutrophils
Direkrit Chiewchengchol¹, Connie Lam¹, Kate Roberts¹, Helen Wright¹, Huw Thomas¹, Robert Moots² and Steven Edwards¹, ¹Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom, ²University Hospital Aintree, Liverpool, United Kingdom
Background/Purpose: TNF is a key regulator of immune function and plays a pivotal role in inflammatory conditions such as rheumatoid arthritis. Human neutrophils express and…
Abstract Number: 902 • 2012 ACR/ARHP Annual Meeting
Activation of NF-Kb Via Poly(I:C)-Induced Monocyte-Derived Microparticles Decreases TRAIL-Induced Apoptosis of Rheumatoid Arthritis Synovial Fibroblasts
Mojca Frank Bertoncelj¹, Blaz Rozman², Beat A. Michel³, Renate E. Gay¹, David S. Pisetsky⁴, Oliver Distler⁵, Steffen Gay⁶ and Astrid Juengel⁷, ¹Center of Experimental Rheumatology, University Hospital Zurich and Zurich Center of Integrative Human Physiology (ZIHP), Zurich, Switzerland, ²Department of Rheumatology, University Medical Centre Ljubljana, Ljubljana, Slovenia, ³Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland, ⁴Department of Medicine, Duke University Medical Center, Durham, NC, ⁵Department of Rheumatology and Center of Experimental Rheumatology, University Hospital Zurich, Zurich, Switzerland, ⁶Rheumatology, Center of Experimental Rheumatology, University Hospital Zurich and Zurich Center of Integrative Human Physiology (ZIHP), Zurich, CH-8091, Switzerland, ⁷Center of Experimental Rheumatology, University Hospital Zurich, Zurich Schlieren, Switzerland
Background/Purpose: Decreased sensitivity of rheumatoid arthritis (RA) synovial fibroblasts (SF) to apoptosis leads to synovial hyperplasia and destruction of joints in RA. Activation of NF-kB…
Abstract Number: 435 • 2012 ACR/ARHP Annual Meeting
CIP2A Facilitates Apoptotic Resistance of Fibroblast-Like Synoviocytes in Rheumatoid Arthritis Independent of c-Myc Expression
Jaejoon Lee¹, Jiwon Hwang¹, Jinseok Kim², Joong Kyong Ahn³, Hoon-Suk Cha¹ and Eun-Mi Koh⁴, ¹Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea, ²Internal Medicine, Jeju National University Hospital, Jeju, South Korea, ³Department of Medicine, Kangbuk Samsung hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea, ⁴Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Seoul, South Korea
Background/Purpose: Cancerous inhibitor of protein phosphatase 2A (CIP2A) is a recently identified oncoprotein that leads to cellular proliferation in cancer cells by stabilizing c-Myc protein.…
Abstract Number: 410 • 2012 ACR/ARHP Annual Meeting
Early Growth Response-1 (EGR-1) Controls Synoviocyte Apoptosis, and Its Expression Is Regulated by the Direct Binding of Fibroblast Growth Factor-1 (FGF1) or Insulin-Like Growth Factor-1 (IGF1) to Integrin αvβ3
Shino Tanaka¹, Jun Saegusa¹, Seiji Kawano¹, Yoshikazu Takada², Shunichi Kumagai³ and Akio Morinobu¹, ¹Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe, Japan, ²Dermatology, University of California, Davis, School of Medicine, Sacramento, CA, ³The Center of Rheumatic Diseases, Shinko Hospital, Kobe, Japan
Background/Purpose: Growth factors such as fibroblast growth factor (FGF) and insulin-like growth factor (IGF) are of interest in the initiation and development of rheumatoid arthritis…
Abstract Number: 418 • 2012 ACR/ARHP Annual Meeting
Immediate Early Response Gene X-1 Is Over-Expressed and Regulates Apoptosis and Cytokine Production in Rheumatoid Arthritis Synovial Fibroblasts
Akio Morinobu¹, Masaaki Fujita², Shino Tanaka³, Jun Saegusa⁴ and Shunichi Kumagai⁵, ¹Department of clinical pathology and immunology, Kobe university graduate school of medicine, Kobe 650-0017, Japan, ²Kobe University Graduate School of Medicine, Kobe, Japan, ³Department of Clinical Pathology and Immunology, Rheumatology and Clinical Immunology, Kobe, Japan, ⁴Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe, Japan, ⁵Center of rheumatic diseases, Shinko hospital, Kobe, Japan
Background/Purpose: Histone deacetylase inhibitors (HDACi) are potential therapeutic drugs for the treatment of rheumatoid arthritis (RA). We found that an HDACi up-regulates the gene expression…
Abstract Number: 429 • 2012 ACR/ARHP Annual Meeting
The Significance of the Apoptosis Level and the Apoptosis Related Signal Proteins of CD4⁺t�ACD4⁺Foxp3⁺t Cell in Patients with Rheumatoid Arthritis
Ning Li¹, Tianrui Ma², Jie Han¹, Jieru Zhou¹ and Songguo Zheng³, ¹Rheumatology, Shanghai East Hospital, Shanghai, China, ²Rheumatology, Ningbo Pediatric Hospital, Ningbo, China, ³Division of Rheumatology and Immunology, Department of Medicine, Keck School of Medicine of the University of Southern California, Los Angeles, CA
Background/Purpose: To investigate the apoptosis of CD4+T cell and Tregs in the pathogenesis and disease activity of rheumatoid arthritis patients. Methods: Isolated lymphocytes from human…
Abstract Number: 2679 • 2012 ACR/ARHP Annual Meeting
Loss of Caspase 8 in Dendritic Cells Induces a Systemic Lupus Erythematosus-Like Disease That Is Independent of the Necroptosome
Carla M. Cuda¹, Alexander V. Misharin², Rana Saber², G. Kenneth Haines III³, Jack Hutcheson⁴, Chandra Mohan⁵ and Harris R. Perlman⁶, ¹Medicine / Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, ²Medicine/Rheumatology, Northwestern University, Chicago, IL, ³Department of Pathology, Yale University, New Haven, CT, ⁴Internal Medicine - Rheumatic Diseases, University of Texas Southwestern Medical Center, Dallas, TX, ⁵Internal Medicine/Division of Rheumatology, University of Texas Southwestern Medical Center, Dallas, TX, ⁶Feinberg School of Medicine, Northwestern University, Chicago, IL
Background/Purpose: Systemic lupus erythematosus (SLE) is a multi-organ, destructive autoimmune disease characterized by pathogenic autoantibodies. Though it is accepted that dendritic cells (DCs) play an…
Abstract Number: 2325 • 2012 ACR/ARHP Annual Meeting
PD-1 Signaling Promotes Suppressive Function of CD4⁺ Regulatory T Cells in (New Zealand Black x New Zealand White )F₁ Lupus-Prone Mice in a Dose-Dependent Manner
Maida Wong¹, Antonio La Cava² and Bevra H. Hahn³, ¹Internal Medicine/Rheumatology, University of California, Los Angeles, Los Angeles, CA, ²Internal Medicine/Rheumatology, UCLA David Geffen School of Medicine, Los Angeles, CA, ³Rheumatology, UCLA David Geffen School of Medicine, Los Angeles, CA
Background/Purpose: Programmed death-1 (PD-1) has been regarded as a negative regulatory signal in T cells. Our laboratory has shown that PD-1 is important in T…
Abstract Number: 2296 • 2012 ACR/ARHP Annual Meeting
Platelet Release Products Mediate Endothelial Apoptosis: A Possible Role for Thrombospondin 1- CD36 Pathway in SSc-Endothelial Apoptosis
Bashar Kahaleh¹ and Yongqing Wang², ¹Medicine/Rheumatology, University of Toledo, Toledo, OH, ²Medicine, University of Toledo, Toledo, OH
Background/Purpose: Sequential pathologic observations in the early stages of SSc demonstrated evidence for platelet aggregation and binding to blood vessels that is generally followed by…
Abstract Number: 2083 • 2012 ACR/ARHP Annual Meeting
New Treatment Approach of Rheumatoid Arthritis Based On Inhibition of Cyclin Dependent Kinase-9
Annelie Hellvard¹, Lutz Zeitlmann², Ulrich Heiser³, André Niestroj³, Hans-Ulrich Demuth³, Jan Potempa⁴ and Piotr Mydel¹, ¹Broegelmann Research Laboratory, The Gade Institute, University of Bergen, Bergen, Norway, ²Ingenium Pharmaceuticals GmbH, Martinsried, Germany, ³Probiodrug AG, Halle/Saale, Germany, ⁴Microbiology Department, Jagiellonian University, Krakow, Poland
Background/Purpose: Cyclin dependent kinase-9 (cdk-9) is transcription regulator of the carboxyterminal domain of RNA polymerase II. The usage of pan-cdk inhibitors such as flavopiridol has…

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