Effect of glutathione and Y27632 on the viability of cryopreserved porcine adipose-derived stem cells.

BACKGROUND: Recently it has been reported that reduced glutathione (GSH) and/or Rho-associated kinase (ROCK) inhibitor supplemented in cryopreservation solution could improve the viability of cells. OBJECTIVE: To identify the cryopreservation efficiency of GSH and ROCK inhibitor on porcine ADSCs. MATERIALS AND METHODS: Porcine ADSCs were separated and cultured. Cells at the 4th passage were suspended in cryopreservation solution supplemented with Y-27632 and GSH or both, and then frozen and thawed. The viability of cryopreserved ADSCs was compared using a MTT assay. RESULTS: The addition of GSH and Y-27632 to cryopreservation solution (dimethyl sulfoxide) and post-thaw culture medium significantly improves the post-thaw viability of ADSCs. CONCLUSION: GSH and Y-27632 are able to increase the survival of ADSCs, and they have an additive effect, as compared to GSH or Y27632 alone.