Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Pathways of surfactant processing. TTF1 is the transcription factor regulating SP-B and SP-C synthesis; ABCA3 is crucial for post-translational, intracellular surfactant processing; granulocyte–macrophage colony-stimulating factor (GM-CSF) regulates surfactant catabolism. The mucociliary escalator is not clinically important in surfactant clearance.
