The fibroblast growth factor/fibroblast growth factor receptor (FGF/FGFR) signaling system
regulates a variety of biological processes, including embryogenesis, angiogenesis, wound
repair, tissue homeostasis, and cancer. It exerts these regulatory functions by controlling
proliferation, differentiation, migration, survival, and metabolism of target cells. The
morphological structure of the lung is a complex tree-like network for effective oxygen
exchange, and the airway terminates in the middle and distal ends of many alveoli …