Fig. 7.
Effect of EGF family of growth factors on goblet cell proliferation. Goblet cells from primary culture were stimulated with EGF (10−7 M), TGF-α (10−7 M), HB-EGF (10−7 M), and heregulin (10−7 M) for 24 h. Cell proliferation was measured using WST-1. Data are mean ± SEM from 5 independent experiments. * indicates p < 0.05.