WANG Yitao, et al. Non-programmed processing cryopreservation of immature dendritic cells derived from cord blood with dimethyl sulfoxide and hydroxyethyl starch[J]. Journal of Chongqing Medical University, 2006,(2):156-158.
WANG Yitao, et al. Non-programmed processing cryopreservation of immature dendritic cells derived from cord blood with dimethyl sulfoxide and hydroxyethyl starch[J]. Journal of Chongqing Medical University, 2006,(2):156-158.DOI:
Objective: This experiment investigated the biological properties of immature and cryopreserved DCs to develope a preservative method of immature dendritic cells for clinical use.Method: Immature dendritic cells were generated from human cord blood(CB) monocyte cμltured with rhGM-CSF and rhIL-4 and were cryopreservated with 5% DMSO and 6% HES in-80℃ refrigerator
then into-196℃ liquid nitrogen.We revived the cells into 37~40 ℃ water bath after a month.Recovery rate was evaluated by TBBR.imDCs′ morphological changes of DCs were analyzed by expression of surface antigens and allgenetic mixed lymphocyte reaction was performed to assess allo-stimμlating abilities of imDCs.Result: TBBR was 88.6%.The freeze-thawed immature dendritic cells′immunophenotype and function did not changed comparing with their fresh counterparts(P>0.05).Conclusion: Cryopreserved DCs exhibited typical characteristics of DCs
immature in cell phenotype and cell functions
suggesting that the non-programmed process using the combined two protectants is feasible.