Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA90119 | ENA |
REPOSITORIES: ENA
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Project description:This series represents the complete series of the human 293h media depleted storage on agarose / rehydration condition course analysis. Samples include Control, monolayer; Control, monolayer/full recovery, antibiotics; Spheroid, no storage; two week storage/0hr recovery; two week storage/full recovery; four week storage/0hr recovery; six week storage/0hr recovery. Keywords = 293h cells Keywords = desiccation Keywords = rehydration Keywords = spheroid Keywords = stabilization Keywords = ambient temperature Keywords: other
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Project description:In this study we performed comprehensive analysis of changes in cell survival, vital parameters, plasticity, as well as transgene expression of placental MSCs after temperature fluctuations within the liquid nitrogen steam storage, mimicking long-term preservation in practical biobanking, transportation, and temporal storage. It was shown that viability and metabolic parameters of placental MSCs did not significantly differ after temperature fluctuations in the range from -196ºC to -100ºC in less than 20 cycles in comparison to constant temperature storage. However, increasing of the temperature range to -80ºC as well as increasing the number of cycles, leads to significant lowering of these parameters after thawing. The number of apoptotic changes increases depending on the number of cycles of temperature fluctuations. Besides, adhesive properties of the cells after thawing are significantly compromised in the samples subjected to temperature fluctuations during storage. Plasticity of placental MSCs was not compromised neither after cryopreservation with constant end temperatures nor with temperature fluctuations. However, regulation of various genes after cryopreservation procedures significantly varies. Alterations in structural and functional parameters of placental MSCs after long-term preservation should be considered in practical biobanking due to potential temperature fluctuations in samples. At the same time, plasticity and transgene expression are not compromised during studied storage conditions, while certain gene regulation is observed.
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Project description:Gene methylation profiling of immortalized human mesenchymal stem cells comparing HPV E6/E7-transfected MSCs cells with human telomerase reverse transcriptase (hTERT)- and HPV E6/E7-transfected MSCs. hTERT may increase gene methylation in MSCs. Goal was to determine the effects of different transfected genes on global gene methylation in MSCs.
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Project description:This series represents the rehydration series of the human 293h media depleted storage on agarose / rehydration condition course analysis. Samples include Control Monolayer, 0 hr desiccation, 0 hr rehydration, 6 hr rehydration, 24 hr rehydration, and 72 hr rehydration. Keywords = 293h cells Keywords = desiccation Keywords = rehydration Keywords = spheroid Keywords = stabilization Keywords = ambient temperature Keywords: other
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