Abstract:
BACKGROUND AIMS:The therapeutic potential of human mesenchymal stromal cells (MSCs) has generated considerable interest in a wide variety of areas. MSC banking is feasible, but the optimal technique of cryopreservation remains to be determined. METHODS:To reduce dimethyl sulfoxide (DMSO) concentration in cryopreservation medium, DMSO was replaced with sucrose or trehalose. To increase cell survival and proliferation rates after thawing and to eliminate the need for fetal bovine serum (FBS), neuropeptides of the vasoactive intestinal peptide/glucose-dependent insulinotropic peptide/pituitary adenylate cyclase activating polypeptide family were added to the cryopreservation medium. Cell survival was analyzed by a trypan blue dye exclusion assay. Cell proliferation of cryopreserved MSCs was determined after 7 days of culture. RESULTS:No significant differences in cell survival rates were detected between cryopreservation solutions with 5% and 10% DMSO, independently of the addition of trehalose or sucrose. Cell proliferation rates tended to be highest when MSCs were frozen in 5% DMSO + trehalose. FBS could be replaced by human albumin (HA) without loss in cell survival and proliferation potential. With FBS, the addition of neuropeptides could increase cell survival and proliferation rates. Without FBS or HA, cell survival and proliferation rates in the presence of neuropeptides were comparable to rates achieved with FBS or HA. CONCLUSIONS:Classic cryopreservation with 10% DMSO could be replaced by 5% DMSO + 30 mmol/L trehalose. FBS could be replaced by HA or neuropeptides without loss in cell survival and proliferation potential. The addition of neuropeptides in the cryopreservation medium containing FBS could increase the cell proliferation rate and consequently cellular output.
journal_name
Cytotherapyjournal_title
Cytotherapyauthors
Briquet A,Halleux A,Lechanteur C,Beguin Ydoi
10.1016/j.jcyt.2013.06.012subject
Has Abstractpub_date
2013-11-01 00:00:00pages
1385-94issue
11eissn
1465-3249issn
1477-2566pii
S1465-3249(13)00596-3journal_volume
15pub_type
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