Human amniotic fluid stem cells (hAFSCs) expressing p21 and cyclin D1 genes retain excellent viability after freezing with (dimethyl sulfoxide) DMSO

Autor: Shiva Gholizadeh-Ghaleh Aziz, Khodadad Khodadadi, Fatima Pashaei-Asl, Maryam Pashaiasl, Mohammad Rahmati-Yamchi, Zahra Fardyazar
Rok vydání: 2017
Předmět:
0301 basic medicine
Homeobox protein NANOG
Adult
Cyclin-Dependent Kinase Inhibitor p21
Pluripotent Stem Cells
Amniotic fluid
Cell Survival
cryopreservation
Polymerase Chain Reaction
Cryopreservation
Andrology
03 medical and health sciences
0302 clinical medicine
Cyclin D1
Cryoprotective Agents
Pregnancy
Freezing
Medicine
Humans
Dimethyl Sulfoxide
Viability assay
DMSO
lcsh:R5-920
Dose-Response Relationship
Drug
business.industry
General Medicine
Nanog Homeobox Protein
Amniotic Fluid
Reverse transcription polymerase chain reaction
030104 developmental biology
Human amniotic fluid stem cells
030220 oncology & carcinogenesis
embryonic structures
Amniocentesis
Female
Stem cell
hAFSCs
business
lcsh:Medicine (General)
Octamer Transcription Factor-3
Fetal bovine serum
biopreservation
Research Article
Zdroj: Bosnian Journal of Basic Medical Sciences (2018)
ISSN: 1840-4812
Popis: Human amniotic fluid stem cells (hAFSCs) have features intermediate between embryonic and adult SCs, can differentiate into lineages of all three germ layers, and do not develop into tumors in vivo. Moreover, hAFSCs can be easily obtained in routine procedures and there is no ethical or legal limitations regarding their use for clinical and experimental applications. The aim of this study was to assess the effect of slow freezing/thawing and two different concentrations of DMSO (10% DMSO + 90% fetal bovine serum [FBS] and 5% DMSO + 95% FBS) on the survival of hAFSCs. hAFSCs were obtained from 5 pregnant women during amniocentesis at 16–22 weeks of gestation. The expression of pluripotency markers (Octamer-binding transcription factor 4 [Oct4] and NANOG) by reverse transcription polymerase chain reaction and cell surface markers (cluster of differentiation [CD31], CD44, CD45, and CD90) by flow cytometry was analyzed before and after the slow-freezing. Cell viability was assessed by trypan blue exclusion or MTT assay. Quantitative mRNA expression of Oct4, NANOG, cyclin D1 and p21 was determined by real-time PCR before and after the slow-freezing. Pluripotency of hAFSCs was confirmed by NANOG and POU5F1 (Oct4) gene expression before and after slow-freezing. All hAFSC cultures were positive for CD44 and CD90. A higher viability of hAFSCs was observed after freezing with 90% FBS + 10% DMSO. There was increased expression of NANOG and decreased expression of POU5F1 gene after freezing, compared to control cells (before freezing). DMSO and the process of freezing did not significantly change the expression of p21 and cyclin D1 genes in hAFSCs. Overall, our results indicate the applicability of slow-freezing and DMSO in cryopreservation of SCs.
Databáze: OpenAIRE
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