IFN-γ-Associated Signaling Networks in Interstitial Lung Disease Associated With Sjögren's Disease

Background

Sjögren's disease (SD) is a chronic systemic autoimmune disorder that can affect multiple organ systems. Interstitial lung disease (ILD) is a clinically significant pulmonary manifestation of SD and is associated with impaired quality of life and increased mortality. Interferon-γ (IFN-γ), a major effector cytokine of Th1 immunity, has been implicated in immune dysregulation and chronic inflammation; however, its contribution to SD-associated ILD (SD-ILD) and its relationship with fibrotic remodeling remain incompletely understood.