VEGFA and idiopathic pulmonary fibrosis: In addition, scRNA sequencing studies and proteomics (https://www.proteinatlas.org/) have shown that VEGF ligands and receptors are also expressed in several non-endothelial IPF lung cells, including type II alveolar epithelial cells, fibroblasts, dendritic cells, macrophages, and aberrant basaloid cells [49,50].