The effect of temperature elevation on cryopreserved mesenchymal stem cells
1National Centre for Biomedical Engineering Science, National University of Ireland Galway, Galway, Ireland. m.norkus1@nuigalway.ie
Cryo Letters
|September 3, 2013
Summary
Temperature increases significantly harm cryopreserved stem cells, even briefly. A new model predicts this damage, crucial for stem cell viability during cryopreservation and transport.
Area of Science:
- Stem cell research
- Regenerative medicine
- Cryobiology
Background:
- Cryopreservation is vital for long-term stem cell storage, maintaining regenerative capacity.
- Temperature excursions during storage or transport can compromise cell viability.
- Limited research exists on temperature elevation effects on cryopreserved stem cells.
Purpose of the Study:
- To investigate the impact of elevated temperatures on cryopreserved Mesenchymal Stem Cells (MSCs).
- To develop a predictive model for cell viability under adverse temperature conditions.
Main Methods:
- Cryopreservation of rat Mesenchymal Stem Cells (MSCs).
- Exposure of cryopreserved MSCs to temperatures from -20°C to 37°C.
- Assessment of cellular membrane integrity using trypan-blue exclusion.
Main Results:
- Temperature elevation significantly reduces the viability of cryopreserved MSCs.
- A multiple regression model was developed to approximate cell viability.
- Model parameters were optimized for predictive accuracy.
Conclusions:
- Elevated temperatures have a dramatic, time-dependent negative effect on cryopreserved cell viability.
- The developed model can predict damage from temperature excursions.
- Findings are critical for ensuring stem cell quality in regenerative medicine.
