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Influence of ovarian steroid hormones and hCG on localization of β4-integrin. Images show Ishikawa spheroids after 2 days of stimulation with E2/estradiol (b/b’), P4/progesterone (c/c’), medroxyprogesterone acetate/MPA (d/d’) or human choriogonadotropin/hCG (e/e’). a/a’ represent the control without any hormones. Grey-scale pictures for β4-integrin (a–e) or in green combined with tight junctional staining (ZO-1, magenta) and Hoechst (blue) in (a’–e’). Scale bar: 20 µm
