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Rimac, Vladimira; Bojanić, Ines; Dabelić, Sanja; Ćepulić, Branka Golubić
Acta Pharmaceutica, 12/2023, Volume: 73, Issue: 4Journal Article, Paper
Although the use of cryoprotectant dimethyl sulfoxide (DMSO) is the gold standard in cryopreservation of hematopoietic stem cells, it is well known that it has a negative effect on cell viability. The aim of this prospective study was to examine how the length of post-thaw exposure to DMSO affects the cell viability and stability of peripheral blood stem cell (PBSC) samples. Additionally, the effects of donor type and pre-cryopreservation storage time on post-thaw viability during the stability study were evaluated. In 30 autologous and 30 allogeneic PBSC samples viable CD34+, CD14+, CD19+, CD16+/56+, and CD3+ cells were determined immediately after thawing, and one-and three-hours post-thaw. Analysis of the absolute count of viable cells in thawed samples showed a significant difference between all measurement points for CD34+ ( < 0.001), CD14+ ( < 0.001), and CD19+ cells ( < 0.001). No significant differences were observed for post-thaw stability of allogeneic samples analysed between products stored before cryopreservation ≥ 24 hours (N = 20), and those stored < 24 hours (N = 10), except for viable CD3+/CD4+ cells after three hours post-thaw ( = 0.028). In conclusion, DMSO had different effects on leukocyte subpopulations in cryopre-served PBSC samples. The type of donors and the length of storage before cryopreservation did not affect the post-thaw stability of cryopreserved PBSC samples.
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