Cellular rearrangements in the developing mouse OE. (A) Immunostainings for ZO-1 on the apical surface of the mouse OE from E12 to P28. (B) Schematic presentation of each field inside the dashed-line square in each panel of A. Yellow, OCs; pink, SCs. (C) Time-lapse imaging of the organ culture of the OE derived from R26-ZO1-EGFP mice. Black and white reversal images at 30-min intervals are shown. Arrowheads indicate the separation of adjacent OCs (blue and yellow).