Chinese Journal of Tissue Engineering Research ›› 2018, Vol. 22 ›› Issue (5): 748-753.doi: 10.3969/j.issn.2095-4344.0446

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Effect of cold storage time on cellular viability of umbilical cord mesenchymal stem cells

Yan Shan-shan, Li Yi-jia, Chen Xi, Liu Li-jun   

  1. Shun Xi Regenerative Medicine Co., Ltd., Kunming 650106, Yunnan Province, China
  • Revised:2017-08-22 Online:2018-02-18 Published:2018-02-18
  • Contact: Li Yi-jia, M.D., Shun Xi Regenerative Medicine Co., Ltd., Kunming 650106, Yunnan Province, China
  • About author:Yan Shan-shan, Master, Shun Xi Regenerative Medicine Co., Ltd., Kunming 650106, Yunnan Province, China

Abstract:

BACKGROUND: With the in-depth basic research and clinical research on mesenchymal stem cells, mesenchymal stem cells have wide clinical prospects. However, little is reported on the temporary storage conditions and refusion time of mesenchymal stem cells.
OBJECTIVE: To explore the effect of cold storage time on the cell mass and viability of umbilical cord mesenchymal stem cells.
METHODS: Frozen-thawed and unfrozen umbilical cord mesenchymal stem cells were prepared and stored at 0-4 ℃. The cell viable cell rate, cell doubling time and colony forming efficiency were detected after 0, 6, 12, and 24 hours.
 RESULTS AND CONCLUSION: Unfrozen cells could maintain the cell biological activity at 0-4 ℃ until dead cells appeared with the  presence of decreased cell viability at 12 hours after storage. Frozen-thawed cells were unable to be stored at 0-4 ℃ for a long time, and cells began to die and the cell viability was weakened at 6 hours after storage. These findings indicate that umbilical cord mesenchymal stem cells should be injected into patients within 6 or 12 hours after preparation, to ensure the best therapeutic effects. If there is a longer transport distance, it is preferred to use unfrozen mesenchymal stem cells. 

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

Key words: Stem Cells, Mesenchymal Stem Cells, Cryopreservation, Tissue Engineering

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