FOXF1 and pulmonary fibrosis: FOXF1, a member of the forkhead box family of transcription factors, has previously been shown to be critical for lung development (Mahlapuu et al., 2001), lung regeneration after partial pneumonectomy (Bolte et al., 2017), and the inhibition of bleomycin-induced pulmonary fibrosis (Black et al., 2018).