Caco-2 cell line is widely used in different preclinical and clinical studies. One of the most prominent features of Caco-2 cell line is their ability of spontaneous differentiation. Due to different handling procedures of Caco-2 cell line, which include the use of different concentrations and variable time of the treatmeant with trypsin, results differ between laboratories which makes comparsion impossible. We tested the impact of different concentrations of trypsin on cell viability, attachment of the cells on surface and the expression of different genes with quantitave polymerase chain reaction method with purpose of evaluating the impact of trypsin on Caco-2 cell line and to what extent it affects the differences in results between laboratories. With the help of results we could make a standardized protocol which could help other scientists dealing with Caco-2 cell line.
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