Flow cytometry analysis of ECADHIGH or ECADLOW cells loaded with Indo-1 and cultured in indicated medium (0 Ca2+ or 2 Ca2+) for 1h. Representative of 2 independent cell lines (n indicates the number of cells analyzed in each group, ECADHIGH 0 Ca2+ n=4963, ECADLOW 0 Ca2+ n=14, ECADHIGH 2 Ca2+ n=6575, ECADLOW 2 Ca2+ n=29). Representative of 2 independent murine PDA cell lines run in triplicate. Statistical analysis by Student's unpaired t-test (****, p<0.0001; non-significant (NS); ±SD). 