Abstracts tagged "osteoclast"

Abstract Number: 1719 • ACR Convergence 2023
Exploring the Link Between Osteitis and Bone Microstructure Changes in Rheumatoid Arthritis: Role of JAK-STAT Signaling Pathway
Tsuneyasu Yoshida¹, Yoichi Nakayama¹, Masao Katsushima², Yuri Nishida³, Mirei Shirakashi¹, Ran Nakashima¹, Ryu Watanabe², Kosaku Murakami⁴, Hajime Yoshifuji¹, Akio Morinobu¹ and Motomu Hashimoto², ¹Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, Kyoto, Japan, ²Department of Clinical Immunology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan, ³Department of Endocrinology and Rheumatology, Kurashiki Central Hospital, Kurashiki, Japan, ⁴Center for Cancer Immunotherapy and Immunobiology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
Background/Purpose: Osteitis on MRI and bone microstructure changes (BMC) on high-resolution peripheral quantitative CT are the earliest signs of arthritis, preceding the development of bone…
Abstract Number: 2014 • ACR Convergence 2023
The Role of Orosomucoid 2 in the Regulation of Bone Remodeling by Inhibiting Osteoclastogenesis and Promoting Osteogenesis
CHONG HYUK CHUNG¹, Myeung-Su Lee¹ and Chang-hoon Lee², ¹Wonkwang University Hospital, Iksan, South Korea, ²Wonkwang University Hospital, Iksan Jeonbuk, South Korea
Background/Purpose: Orosomucoid (ORM) is one of the acute phase reactant protein family and is expressed in hepatocytes and secreted into plasma under stress conditions such…
Abstract Number: 0588 • ACR Convergence 2022
S-nitrosoglutathione Reductase (GSNOR) Regulates Osteoclast Differentiation
Toshihiro Tanioka¹, Kohei Maeda¹, Rei Takahashi¹ and Takeo Isozaki², ¹Division of Pathogenesis and Translational Medicine, Department of Clinical Pharmacy, Showa University School of Pharmacy, Tokyo, Japan, ²Division of Rheumatology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
Background/Purpose: S-nitrosoglutathione (GSNO) reductase (GSNOR) is an enzyme which decomposes GSNO and downregulates protein S-nitrosylation. It has been reported that GSNOR KO mice have enhanced…
Abstract Number: 0604 • ACR Convergence 2022
Altered Metabolic State in Myeloid Precursors and Mature Cells Within Rheumatoid Arthritis
Patricia Riedlova¹, Luís Almeida², Cecilia Ansalone³, Shatakshi Sood¹, Bart Everts² and Carl Goodyear¹, ¹University of Glasgow, Glasgow, Scotland, United Kingdom, ²Leiden University Medical Center, Leiden, Netherlands, ³UCSD and University of Glasgow, Glasgow, Scotland, United Kingdom
Background/Purpose: Rheumatoid arthritis (RA) is an autoimmune disease characterised by synovial inflammation and joint destruction. Prior research has revealed perturbation in the myeloid compartment of…
Abstract Number: 0030 • ACR Convergence 2021
Interleukin-9 Enhances the Osteoclastogenesis in Rheumatoid Arthritis
Santanu Kar¹, Dipendra Mitra², Vijay Kumar D¹ and Sushmita Chakraborty¹, ¹AIIMS, New Delhi, India, ²ALL INDIAN INSTITUTE OF MEDICAL SCIENCES, New Delhi, India
Background/Purpose: Rheumatoid Arthritis (RA) is a chronic inflammatory disease characterized by synovial inflammation leading to bone destruction. Bone erosion in RA results from excessive resorption…
Abstract Number: 0044 • ACR Convergence 2021
Autoantibodies Against Malondialdehyde-modifications Promote Osteoclast Development by Reprogramming Cellular Metabolism
Koji Sakuraba¹, Akilan Krishnamurthy¹, Alexandra Circiumaru², Jitong Sun¹, Vijay Joshua¹, Heidi Wähämaa¹, Marianne Engström¹, Meng Sun¹, Xiaowei Zheng¹, Cheng Xu¹, khaled amara¹, Vivianne Malmström¹, Sergiu Catrina¹, Caroline Grönwall¹, Anca Catrina¹ and Bence Réthi¹, ¹Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden, ²Division for Rheumatology, Karolinska Institutet; Center for Rheumatology, Academic Specialist Center, Stockholm Region, Stockholm, Sweden
Background/Purpose: Malondialdehyde (MDA) is a highly reactive compound generated during lipid-peroxidation in conditions associated with oxidative stress. MDA can irreversibly modify proteins (e.g. lysine, arginine…
Abstract Number: 1890 • ACR Convergence 2021
Cellular Origin and Functions of Osteoclasts in Inflammatory Arthritis
Hannah Nelson¹, Ellen Gravallese², Julia Charles¹ and Christian Jacome-Galarza¹, ¹Brigham and Women's Hospital, Harvard Medical School, Boston, MA, ²Brigham and Women's Hospital, Harvard Medical School, Chestnut Hill, MA
Background/Purpose: Inflammatory arthritis (IA) is an autoimmune disease targeting multiple joints and characterized by joint destruction caused by osteoclasts (OC), leading to physical disability. However,…
Abstract Number: 0117 • ACR Convergence 2020
Development of an In Vitro Trabecular Human Bone Model to Recapitulate Features of Glucocorticoid-induced Osteoporosis
Annemarie Lang¹, Karoline Diesing¹, Alexandra Damerau¹, Moritz Pfeiffenberger¹, Timo Gaber¹ and Frank Buttgereit², ¹Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Rheumatology and Clinical Immunology, Berlin, Germany, ²Charité University Medicine, Berlin, Germany
Background/Purpose: The bone matrix consists of inorganic and organic components and a variety of specialized cells such as osteoblasts, osteocytes and osteoclasts. The bone-forming osteoblasts…
Abstract Number: 0784 • ACR Convergence 2020
Upregulation of Tyro3TK on CD14+CD16- Monocytes Promotes Osteoclast Formation in Rheumatoid Arthritis
Jimeng Xue¹, Liling Xu¹, Fanlei Hu¹ and Yin Su², ¹Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, China, Beijing, China (People's Republic), ²Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing, China (People's Republic)
Background/Purpose: The study aimed to investigate the expression and clinical significance of Tyro3TK on CD14+CD16+ and CD14+CD16- monocyte subsets and explore the effect of Tyro3TK…
Abstract Number: 1105 • ACR Convergence 2020
RANK-L Activity: Understanding the Pathogenesis of Erosive Osteoarthritis
Kalyna Jakibchuk¹, Javier Rangel-Moreno¹, Bethany Marston², Jennifer Anolik¹ and Allen Anandarajah¹, ¹University of Rochester Medical Center, Rochester, NY, ²University of Rochester Medical Center, Rochester
Background/Purpose: Erosive osteoarthritis (EOA) is characterized by osteoarthritic findings with central erosions and collapse of the interphalangeal joint subchondral bone plate. A number of studies…
Abstract Number: 977 • 2019 ACR/ARP Annual Meeting
Conditional Deletion of MKL1 Inhibits Osteoclast Formation and Bone Erosions in Collagen Induced Arthritis Mice
Wenfeng Tan¹, Aishu Luo ¹, Yong Xu ², Shiyu Lin ³, Miaojia Zhang ⁴ and Fang Wang ³, ¹the First Affiliated Hospital of Nanjing Medical University, Nanjing, China (People's Republic), ²Nanjing Medical University, NANJING, China (People's Republic), ³the First Affiliated Hospital of Nanjing Medical University, Nanjing, ⁴the First Affiliated Hospital of Nanjing Medical University, Najing, China (People's Republic)
Background/Purpose: Excessively osteoclasts (OCs) activation play an essential role in bone erosions in rheumatoid arthritis (RA). Thus, controlling OCs would be an effective strategy to…

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