Figure 5. Release of fibrotic cytokines in BALF-exosomes by different cells after ALI. (A, B) ELISA for 2 key fibrotic cytokines (TGFβ and FGF) in respective BALF-exosomes at 1 hour, 4 hours, 8 hours, 16 hours and 32 hours after ALI. (A) TGFβ. (B) FGF. *p<0.05. N=5.