Session » Abstracts: Muscle Biology, Myositis & Myopathies – Basic & Clinical Science II: Basic & Translational Research (0861–0866)

Date: Monday, October 27, 2025

Time: 10:00AM-11:30AM

Meeting: ACR Convergence 2025

10:00AM-10:15AM: Abstract Number: 0861

Identification of Anti-HDGFL1 as a Novel Autoantibody in Seronegative Idiopathic Inflammatory Myopathies

10:15AM-10:30AM: Abstract Number: 0862

In immune-mediated necrotising myopathy, anti-HMGCR antibodies inhibit HMGCR activity, leading to the sarcoplasmic accumulation of lipid droplets and myofibres necrosis

10:30AM-10:45AM: Abstract Number: 0863

Myeloid Dendritic Cell Subsets Characterize Muscle of Inclusion Body Myositis Patients and Correlate with KLRG1+ and TBX21+ CD8+ T cells

10:45AM-11:00AM: Abstract Number: 0864

Immunophenotyping Reveals Upregulated IL-9R on Circulating T and B Cells in Dermatomyositis

11:00AM-11:15AM: Abstract Number: 0865

Spatial Transcriptomic Analysis of Calcinosis Cutis in Dermatomyositis Uncovers Disease-Associated Pathways Involving IL-6, Tissue Remodeling, and Osteopontin

11:15AM-11:30AM: Abstract Number: 0866

Immunoglobulin from sera of patients with myositis can passively enter cultured human endothelial cells

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