a–c) In primary pig epithelia cultures, FGF10 increased CFTR mRNA (a) and immunostaining (b,c, bar = 3μm) in non-CF cells (n=3/group) (Control versus combined FGF10 treated groups [24 hr + 72 hr], *P<0.05, Mann Whitney test). Note the example of staining for both groups in (b). d,e) In non-CF and CF primary pig epithelia cultures, FGF10 increased cell height (d) and increased Ki67 index (e) consistent with cellular proliferation (*P<0.05 and **P<0.01, Bonferroni post-test). f,g) Electrophysiology of non-CF and CF (n=3 & 4/group, respectively) primary pig epithelia cultured with FGF10. FGF10 treatment increased forskolin/IBMX (F&I) stimulated short-circuit current (f, 24 and 72 hrs, *P<0.001 and **P<0.01 versus control, Bonferroni post-test). FGF10 treatment did not significantly affect conductance (g, NS, Bonferroni post-test). Graph bars = mean +/− SEM.