Absence of Functional Autoantibodies Targeting Angiotensin II Type 1 Receptor (AT1R) and Endothelin‐1 Type A Receptor (ETAR) in Circulation and Purified IgG from Patients with Systemic Sclerosis
Objective Systemic sclerosis (SSc) is a rare but severe autoimmune disease characterized by immune dysregulation, fibrosis, and vasculopathy. While previous studies have highlighted the presence of …