Fig. 4

Measurement of cytokines and chemokines, and complement components in plasma and bronchoalveolar lavage fluid (BALF) supernatants using the enzyme-linked immunosorbent assay method. a) Comparative analysis of IL-6, CXCL10 and Arginase between patients with non-progressive fibrosing (PF) interstitial lung disease (ILD) and patients with PF-ILD. b) Comparative analysis of C3a, C4a, C5a, and C1q between patients with non-PF-ILD and patients with PF-ILD patients. Abbreviations: PF: progressive fibrosing; ILD: interstitial lung disease; IL: interleukin; CXCL: C-X-C motif chemokine ligand.