Abstracts tagged "Apoptosis"

Abstract Number: 0882 • ACR Convergence 2024
Brepocitinib, a Selective TYK2/JAK1 Inhibitor Under Evaluation for the Treatment of Dermatomyositis, Reduces Inflammatory Cytokine Signaling and Interferon-induced Apoptosis in Primary Human Epidermal Keratinocytes
Jiří Vencovský¹, Alexandra Goriounova², Lisa McConnachie² and Brendan Johnson², ¹Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic, ²Priovant Therapeutics, Durham, NC
Background/Purpose: Dermatomyositis (DM) is characterized by inflammatory and degenerative changes of skin and muscle and upregulation of Type I IFN-regulated gene and protein levels in…
Abstract Number: 0064 • ACR Convergence 2023
Correlation of Anti-DFS70 Autoantibodies by ELISA with HEp-2 Cells DFS Pattern by IFA
Vincent ricchiuti¹, Michael Nappi², Kelly Chun², Ajay Grover¹ and Rubio Punzalan², ¹Labcorp, Dublin, OH, ²Labcorp, Calabasas, CA
Background/Purpose: The discovery and characterization of the dense fine speckled (DFS, ICAP AC-2) nuclear pattern of antinuclear autoantibodies (ANA) detected in HEp-2 cells by indirect…
Abstract Number: 0864 • ACR Convergence 2023
Proteomic Analysis of Circulating Neutrophils from Osteoarthritis Patients Shows Metabolic Dysregulation That Is Associated with Decreased Physiologic Apoptosis
Jennifer Amsler¹, Morgane Le Gall², Camille Daste³, François Rannou³ and Véronique Witko-Sarsat², ¹Institut Cochin, Bern, Switzerland, ²Institut Cochin, Paris, France, ³Hôpital Cochin, Paris, France
Background/Purpose: Osteoarthritis (OA) has long been thought to be only of local mechanical origin. However, it has been shown recently that there is a phenotype…
Abstract Number: 0875 • ACR Convergence 2023
INV-1498, a Promising Caspase Inhibitor, Exhibits Dose-dependent Therapeutic Efficacy in a Canine Model of Osteoarthritis
Jung Gyu Park¹, Yurim Lee¹, Joonghoon Park² and myungjin Kim³, ¹Innovo Therapeutics Inc., Daejeon, South Korea, ²Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang, South Korea, ³HLB bioStep Co. Ltd, Incheon, South Korea
Background/Purpose: Osteoarthritis poses a substantial medical challenge, as the available treatments primarily target symptom relief and fail to effectively halt the progressive cartilage deterioration that…
Abstract Number: 0936 • ACR Convergence 2023
Impaired DNA Repair Responses Activate a Novel FOXO1-dependent Metabolic Remodelling in Patients with Progressive Systemic Sclerosis to Promote Fibrosis
Lamia Khan, Desiree Redmond, Muhammad Elezzabi, Robert Gniadecki, Jan Willem Cohen Tervaert and Mohamed Osman, University of Alberta, Edmonton, AB, Canada
Background/Purpose: Systemic sclerosis (SSc) is a deadly disease characterized by immune dysregulation, vasculopathy, and fibrosis. SSc is the most lethal rheumatic disease associated with the…
Abstract Number: 0955 • ACR Convergence 2023
GRB2 Serves as a Viable Target Against Skin Fibrosis in Systemic Sclerosis by Regulating Endothelial Cell Apoptosis
Yan Huang, Han Zhao, Xiangguang Shi, Jing Liu, Jui-Ming Lin, Qianqian Ma, Shuai Jiang, Weilin Pu, Yanyun Ma, Jianlan Liu, Wenyu Wu, Jiucun Wang and Qingmei Liu, Shanghai, Shanghai, China
Background/Purpose: Systemic Sclerosis (SSc) is an autoimmune disease characterized by vascular and immune system dysfunction, along with tissue fibrosis. Vascular damage has been recognized as…
Abstract Number: 1793 • ACR Convergence 2023
Goblet Cell Specific Anti-Apoptotic Role of Interleukin-24 in Spondyloarthritis-Associated Ileitis
Amy Cameron¹, Rabina Giri², Jakob Begun², Timothy Wells¹, Ranjeny Thomas³ and Anne-Sophie Bergot¹, ¹Frazer Institute, The University of Queensland, Woolloongabba, Australia, ²Mater Research Institute-UQ, Woolloongabba, Australia, ³Frazer Institute, The University of Queensland, Brisbane, Australia
Background/Purpose: The loss of intestinal barrier integrity is a key contributor to gut inflammation, however the mechanism behind this dysregulation is not well understood. The…
Abstract Number: 1692 • ACR Convergence 2022
Interferon Alpha Promotes Ultraviolet Light-Mediated Keratinocyte Apoptosis in a Caspase-8 Dependent Manner via Upregulation of Interferon Regulatory Factor 1
Shannon Estadt, Mehrnaz Gharaee-Kermani, Bin Xu, Tyson Moore, Andrew Hannoudi and J. Michelle Kahlenberg, University of Michigan, Ann Arbor, MI
Background/Purpose: Systemic lupus erythematosus (SLE) is a chronic autoimmune disease characterized by enhanced sensitivity to ultraviolet radiation (UVR). UVR can trigger cutaneous and systemic disease…
Abstract Number: 1727 • ACR Convergence 2022
BATF Represses BIM Expression to Sustain the T Cell Anergy Program
Philip Titcombe, Milagros Silva-Morales, Na Zhang and Daniel Mueller, University of Minnesota, Minneapolis, MN
Background/Purpose: T cell tolerance is essential for preventing autoimmune diseases and resolving inflammation. To maintain tolerance, CD4+ T cells recognizing self-antigens in the periphery can…
Abstract Number: 0611 • ACR Convergence 2022
Proteomics Reveals Dysregulated Molecular Mechanisms of Cell Death in Neutrophils in Rheumatoid Arthritis
Jennifer Amsler¹, Constance Beaudouin², Morgane LeGall³, Géraldine Falgarone⁴, François Rannou⁵, Léa Tourneur³ and Véronique Witko-Sarsat³, ¹Institute Cochin, Schoenenwerd, Switzerland, ²Hôpital Privé de Provence, Aix-en-Provence, France, ³Institute Cochin, Paris, France, ⁴Hôpital Avicenne, Paris, France, ⁵Hôpital Cochin, Paris, France
Background/Purpose: Favoring apoptosis of neutrophils infiltrating the joints of patients suffering from rheumatoid arthritis (RA) and perpetuating inflammation has recently been discussed as an alternative…
Abstract Number: 1172 • ACR Convergence 2022
Transcription Analysis of Macrophages Reveals Important Changes Induced by Systemic Sclerosis Fibroblasts
Juan-Pablo Zertuche¹, Taha Dinc², Fatima El Adili³, Giovanni Ligresti¹ and Andreea Bujor¹, ¹Boston University, Boston, MA, ²Boston University School of Medicine, Boston, MA, ³Boston University School of Medicine, Revere, MA
Background/Purpose: Systemic Sclerosis (SSc) is an autoimmune connective tissue disease characterized by immune system activation, endothelial dysfunction and widespread tissue fibrosis. Activation of the monocyte/macrophage…
Abstract Number: 0970 • ACR Convergence 2021
Hippo Signaling Is a Novel Regulator of Apoptosis and Photosensitivity in Lupus Keratinocytes
Grace Hile¹, Patrick Coit², Bin Xu¹, Shannon Estadt¹, Jacob Martens³, Rachael Wasikowski¹, Lam Tsoi¹, Ramiro Iglesias-Bartolome⁴, Celine Berthier¹, Allison Billi⁵, Johann Gudjonsson⁵, Amr Sawalha² and J. Michelle Kahlenberg¹, ¹University of Michigan, Ann Arbor, MI, ²University of Pittsburgh, Pittsburgh, PA, ³Graduate Program in Immunology, University of Michigan, Ann Arbor, MI, USA, Ann Arbor, MI, ⁴NIH, National Cancer Institute, Bethesda, MD, ⁵Department of Dermatology, University of Michigan, Ann Arbor, MI
Background/Purpose: Skin inflammation and photosensitivity are common manifestations of cutaneous (CLE) and systemic lupus erythematosus (SLE), yet the mechanisms underlying heightened cell death and epidermal…
Abstract Number: 0283 • ACR Convergence 2020
Genome-wide DNA Methylation Analysis in Lupus Keratinocytes Identifies Differential Methylation of Genes That Regulate Apoptosis
Grace Hile¹, Patrick Coit¹, Chang Zeng¹, Rachael Wasikowski², Alex Tsoi², Allison Billi², Johann Gudjonsson³, Amr Sawalha⁴ and J. Michelle Kahlenberg⁵, ¹University of Michigan, Ann Arbor, MI, ²University of Michigan, Ann ARbor, ³University of Michigan, Ann ArborUniversity of Michigan, ⁴University of Pittsburgh, Pittsburgh, ⁵Division of Rheumatology, University of Michigan, Ann Arbor, MI
Background/Purpose: Cutaneous lupus erythematous (CLE) is a disfiguring manifestation of systemic LE (SLE), and the pathogenesis remains unclear. However, epidermal regulation of skin inflammation and…
Abstract Number: 0792 • ACR Convergence 2020
LY294002 Improves the Collagen-induced Arthritis by Inducing Neutrophil Apoptosis
Xuechan Huang¹, Tianwang Li¹, Shuyang Chen¹, Zhixiang Huang¹ and Junming Chen¹, ¹Department of Rheumatology and Immunology, Guangdong Second Provincial General Hospital, Guangdong, China (People's Republic)
Background/Purpose: Neutrophils play a central role in host defense, but they also play important effectors on acute and chronic inflammation. Neutrophil apoptosis is essential for…
Abstract Number: 0837 • ACR Convergence 2020
Deletion of miR-223 Exacerbates Lupus Nephritis by Targeting S1pr1 in Faslpr/lpr Mice
Sumie Hiramatsu Asano¹, Tomoyuki Mukai², Yoshitaka Morita³ and Jun Wada⁴, ¹Kawasaki Medical School/Department of Rheumatology, Kurashiki city, Japan, ²Kawasaki Medical School, Kurashiki-shi, Okayama, Japan, ³Kawasaki Medical School/Department of Rheumatology, Kurashiki, Okayama, Japan, ⁴Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences., Okayama city, Japan
Background/Purpose: To identify new candidate genes regulated by micro RNAs (miRNAs) and involved in the pathogenesis of systemic lupus erythematosus (SLE), we integrated miRNA and…

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