Abstract
The purpose of the present study was to assess the impact of cryoprotective media on cryopreservation of Paesun cells using loading trehalose. 30 mM trehalose was added after confluence of cells, and cultures were further incubated for 18 h at 37 °C. Cryoprotective media was “Cryocool” for the experiment, while MEM containing 10% FBS for the control. After thawing, these cells were examined with assaying the percentage of viable cells and the recovery rate; 89.2 ± 1.4% and 78.8 ± 3.2%, respectively in the experiment group, while 33.1 ± 2.9% and 21.5 ± 2.1%, respectively in the control group. Post-thaw cells of the experiment group were examined by assaying proliferation and susceptibility to virus lines; there were no significant differences between before and after cryopreservation, while cells of control group could not be recultured. In conclusion, the cryoprotective media impacts on the effectiveness of cryopreservation using loading trehalose.
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