Abstracts tagged "Apoptosis"

Abstract Number: 2705 • 2015 ACR/ARHP Annual Meeting
AAA-Atpase p97-HDAC6 Controlled Poly-Ubiquitin Turnover Regulates Apoptotic and Autophagy-Associated Cell Death in Arthritis
Masaru Kato¹, Kerstin Klein², Caroline Ospelt², Christoph Kolling³, Michihito Kono¹, Shinsuke Yasuda¹, Renate E. Gay⁴, Steffen Gay⁵ and Tatsuya Atsumi¹, ¹Division of Rheumatology, Endocrinology and Nephrology, Hokkaido University Graduate School of Medicine, Sapporo, Japan, ²Center of Experimental Rheumatology, University Hospital Zurich, Zurich, Switzerland, ³Schulthess Clinic, Zurich, Switzerland, ⁴Center of Experimental Rheumatology, University Hospital Zurich, Switzerland, Zurich, Switzerland, ⁵Center of Experimental Rheumatology, University Hospital Zurich, University Zurich, Zurich, Switzerland
Background/Purpose: The AAA-ATPase valosin containing protein (p97) and histone deacetylase 6 (HDAC6) interact with each other and are implicated in the degradation of ubiquitin-labelled proteins.…
Abstract Number: 3003 • 2015 ACR/ARHP Annual Meeting
Increased Heparanase Expression in Keratinocytes Promotes Dermal Fibrosis in Scleroderma
In-Woon Baek¹, Wan-Uk Kim², Chul-Soo Cho¹ and Ki-Jo Kim³, ¹Internal Medicine, Yeouido St. Mary's Hospital, The Catholic University of Korea, Seoul, South Korea, ²Internal Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, South Korea, ³Internal Medicine, St. Vincent’s Hospital, The Catholic University of Korea, Suwon, South Korea
Background/Purpose: Interactions between keratinocyte and dermal fibroblast via paracrine loop play an important role in wound repair and keloid formation. In this study, we investigated…
Abstract Number: 3215 • 2015 ACR/ARHP Annual Meeting
Bim Suppresses the Development of SLE By Limiting Macrophage Inflammatory Responses
Fu-Nien Tsai¹ and Harris R. Perlman², ¹Medicine, Rhuematology, Northwestern University, Chicago, IL, ²Feinberg School of Medicine, Northwestern University, Chicago, IL
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: 8 • 2015 ACR/ARHP Annual Meeting
Bay 11-7085 Induces Glucocorticoid Receptor Activation and Autophagy to Initiate Human Synovial Fibroblast Cell Death
Biserka Relic¹, Edith Charlier², Céline Deroyer¹, Olivier Malaise¹, Sophie Neuville¹, Aline Desoroux¹, Philippe Gillet³, Michel G. Malaise¹ and Dominique de Seny¹, ¹Department of Rheumatology- GIGA Research - Arthropôle - University of Liège - CHU Liège, Liège, Belgium, ²Department of Rheumatology, Department of Rheumatology- GIGA Research - Arthropôle - University of Liège - CHU Liège, Liège, Belgium, ³Orthopaedic Surgery Department-University of Liège-CHU de Liège, Liège, Belgium
Background/Purpose: BAY 11-7085 is an inhibitor of IκBα phosphorylation that leads to NF-κB inactivation and downregulation of inflammation in mouse model of asthma, in articular…
Abstract Number: 810 • 2015 ACR/ARHP Annual Meeting
Human Parvovirus B19 Nonstructural Protein 1 (NS1) Helicase Breaks Tolerance to Self dsDNA: A Model for Viral Induction of Autoimmunity
Heidi Pirttinen¹, Kanoktip Puttaraksa¹, Robert J. Lagier², Stanley J. Naides³ and Leona Gilbert¹, ¹Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland, ²Research Support, Alameda, Quest Diagnostics Alameda, Alameda, CA, ³Immunology, Quest Diagnostics Nichols Institute, San Juan Capistrano, CA
Background/Purpose: B19 virus (B19V) is common, infects all ages, and is associated with various clinical syndromes including SLE-like autoimmunity. We previously demonstrated that B19 NS1,…
Abstract Number: 1037 • 2015 ACR/ARHP Annual Meeting
Impaired Regulatory T Cell Survival in the Pathogenesis of Autoreactive Arthritis Mediated By CD11c-Deletion of Flip
Qi Quan Huang¹, Renee E. Doyle¹, Robert Birkett², Deyu Fang³, Syamal K. Datta¹ and Richard M. Pope¹, ¹Medicine/Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, ²Division of Rheumatology, Department od Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, ³Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL
Background/Purpose: We have generated a mouse line with Flip conditionally deleted in CD11c-cre expressing cells (CD11c-Flip-KO, named HUPO), which spontaneously develops erosive arthritis resembling rheumatoid…
Abstract Number: 2872 • 2014 ACR/ARHP Annual Meeting
B-Cell Autoepitope and Tetramer Analysis Reveals Expansion of Apoptotic Autoantigen La and snRNP Reactive B Cells in BXD2 Mice
Jennie Hamilton¹, Jun Li², Qi Wu³, PingAr Yang³, Bao Luo³, Hao Li⁴, Troy Randall⁵, John Edwin Bradley⁵, Justin J. Taylor⁶, John D. Mountz^7,8 and Hui-Chen Hsu^3,4, ¹University of Alabama at Birmingham, Birmingham, AL, ²Med - Immunology/Rheumatology, University of Alabama at Birmingham, Birmingham, AL, ³Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, ⁴Department of Medicine, Clinical Immunology & Rheumatology, University of Alabama at Birmingham, Birmingham, AL, ⁵Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, AL, ⁶Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, ⁷Dept of Med/Rheumatology Div, University of Alabama at Birmingham, Birmingham, AL, ⁸Birmingham VA Medical Center, Birmingham, AL
Background/Purpose Systemic lupus erythematous (SLE) is characterized by production of highly pathogenic IgG autoantibodies (autoAbs). While serum autoAb profiling is standard, it remains challenging to…
Abstract Number: 2839 • 2014 ACR/ARHP Annual Meeting
BCL-2 As a Potential Therapeutic Target in Human Lupus Tubulointerstitial Inflammation
Kichul Ko¹, Denisse Yanez¹, Natalya Kaverina¹, Vladimir M. Liarski¹, Yahui Peng², Li Lan³, Stuart Perper⁴, Annette Schwartz⁵, Liz O'connor⁶, Andrew Souers⁷, Steven Elmore⁷, Lisa Olson⁵, Maryellen L. Giger³, Li Chun Wang⁴ and Marcus R. Clark¹, ¹Rheumatology and Knapp Center for Lupus Research, University of Chicago, Chicago, IL, ²School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, China, ³Radiology, University of Chicago, Chicago, IL, ⁴Immunology, AbbVie Inc, AbbVie Bioresearch Center, Worcester, MA, ⁵AbbVie Inc, AbbVie Bioresearch Center, Worcester, MA, ⁶Toxicology, AbbVie Inc, AbbVie Bioresearch Center, Worcester, MA, ⁷AbbVie Inc, North Chicago, IL
Background/Purpose Lupus nephritis (LuN) is the most common, severe manifestation of systemic lupus erythematosus (SLE). We have previously shown that glomerulonephritis appears to be a…
Abstract Number: 2734 • 2014 ACR/ARHP Annual Meeting
B55β Regulates T Cell Survival through the Modulation of AKT during Cytokine Deprivation
José C. Crispin¹, Sokratis A. Apostolidis², Noe Rodriguez Rodriguez¹, Tran Nguyen² and George C. Tsokos³, ¹Medicine/Rheumatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, ²Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, ³Rheumatology, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, MA
Background/Purpose . The abundance of cytokines controls the length of immune responses through poorly defined mechanisms. B55β is a molecule that triggers apoptosis in activated…
Abstract Number: 2166 • 2014 ACR/ARHP Annual Meeting
Bim Suppresses the Development of Glomerulonephritis By Inhibiting M2 Polarization
Fu-Nien Tsai, Northwestern University, Chicago, IL
Background/Purpose Only recently have monocytes and macrophages been accepted as critical players in the pathogenesis of SLE. However, very little is known regarding the molecular…
Abstract Number: 1031 • 2014 ACR/ARHP Annual Meeting
Induction of Pro-Apoptotic Noxa Expression By Ursolic Acid Sensitizes Rheumatoid Arthritis Synovial Fibroblasts to Apoptosis: A Role of Mir-181a
Salahuddin Ahmed¹, Laura Walsh², Anil Singh¹, Maria Beamer³, Kuladeep Sudini⁴ and Douglas Leaman⁴, ¹Department of Pharmaceutical Sciences, Washington State University, Spokane, WA, ²Department of Pharmacology, University of Toledo, Toledo, OH, ³Department of Pharmacology, Department of Pharmacology, University of Toledo, Toledo, OH, ⁴Department of Biological Sciences, University of Toledo, Toledo, OH
Background/Purpose: In rheumatoid arthritis (RA), the paucity of pro-apoptotic protein expression may significantly contribute to the resistance of synovial fibroblasts (FLS) to apoptosis. In the…
Abstract Number: 757 • 2014 ACR/ARHP Annual Meeting
Distinctive Patterns of Telomere Shortening and Apoptosis in Limited and Diffuse cutaneous Systemic Sclerosis
Jasper Broen¹, Liane McGlynn², Dagmara McGuinness², Rina Wichers³, Jacqueline Thomson², Rajan Madhok⁴, Robert Lafyatis⁵, Carol A. Feghali-Bostwick⁶, Paul Shiels² and T.R.D.J. Radstake¹, ¹Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht, Netherlands, ²University of Glasgow, Glasgow, United Kingdom, ³UMC Utrecht, Utrecht, Netherlands, ⁴Glasgow Royal Infirmary, Glasgow, United Kingdom, ⁵Arthritis Center, Boston University, Boston, MA, ⁶Medicine, Medical University of South Carolina, Charleston, SC
Background/Purpose: Aberrant telomere shortening and DNA damage-responses have been previously described in SSc, here we aim to validate these observations and incorporate them in a…
Abstract Number: 343 • 2014 ACR/ARHP Annual Meeting
The Caspase 8/RIPK3 Signaling Axis Has Opposing Roles in Myeloid and Dendritic Cells during Progression of a Murine Model of Acute Inflammatory Arthritis
Carla M. Cuda¹, Alexander Misharin², George Kenneth Haines III³ and Harris R. Perlman⁴, ¹Medicine / Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, IL, ²Northwestern University, Chicago, IL, ³Pathology, The Mount Sinai Hospital, New York, NY, ⁴Northwestern University Feinberg School of Medicine, 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. Both myeloid cells and…
Abstract Number: 1392 • 2013 ACR/ARHP Annual Meeting
The Expression Of Proto-Oncogene Survivin Splicing Variant 2B In Synovial Tissues and Blood From Patients With Rheumatoid Arthritis
Sho Mokuda^1,2, Tatsuhiko Miyazaki³, Junya Masumoto³, Masamoto Kanno⁴ and Kiyoshi Takasugi⁵, ¹Department of Immunology, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan, ²Department of Internal Medicine, Center for Rheumatic Diseases, Dohgo Spa Hospital, Matsuyama, Japan, ³Department of Pathology, Division of Analyticalpathology, Ehime University Graduate School of Medicine, Toon, Japan, ⁴Department of Immunology, Graduate School of Biomedical Sciences, Hiroshima University, Hirosima, Japan, ⁵Center for Rheumatic Diseases, Dohgo Spa Hospital, Matsuyama, Japan
Background/Purpose: It has been reported that serum survivin level was an independent risk factor for predicting joint destruction in early rheumatoid arthritis (RA). The proto-oncogene…
Abstract Number: 939 • 2013 ACR/ARHP Annual Meeting
Reduction Of Circulating Blood Neutrophils In Mice By Anti-IL-6R Alpha Monoclonal Antibody is Not Due To Apoptosis Or Blockade Of Neutrophil Differentiation
Ludmila Kelly, Vilma Decman and Dimitris Skokos, Research, Regeneron Pharmaceuticals, Inc., Tarrytown, NY
Background/Purpose: Blockade of IL-6/IL-6Rα signaling is associated with a reduction of circulating neutrophils in the blood of patients treated with anti-IL-6Rα mAb but the mechanism…

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