Characterizing the "sweet spot" for the preservation of a T-cell line using osmolytes

Sci Rep. 2018 Nov 1;8(1):16223. doi: 10.1038/s41598-018-34638-7.

Abstract

This study examined the post-thaw recovery of Jurkat cells cryopreserved in single osmolyte solutions containing sucrose, glycerol or isoleucine, as well as in a combination of the three osmolytes. Cell response was determined using low temperature Raman Spectroscopy and variation in post-thaw recovery with composition was analyzed using statistical modeling. Post-thaw recovery of Jurkat cells in single osmolyte was low. A combination of the osmolytes displayed a non-linear relationship between composition and post-thaw recovery, suggesting that interactions exist between the different solutes. The post-thaw recovery for an optimized multicomponent solution was comparable to that observed using 10% dimethyl sulfoxide and a cooling rate of 1 °C/min. Statistical modeling was used to characterize the importance of each osmolyte in the combination and test for interactions between osmolytes. Higher concentrations of glycerol increase post-thaw recovery and interactions between sucrose and glycerol, as well as sucrose and isoleucine improve post-thaw recovery. Raman images clearly demonstrated that damaging intracellular ice formation was observed more often in the presence of single osmolytes as well as non-optimized multi-component solution compositions.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Cell Survival*
  • Cold Temperature
  • Cryopreservation*
  • Cryoprotective Agents / chemistry
  • Cryoprotective Agents / pharmacology
  • Humans
  • Jurkat Cells
  • Osmolar Concentration
  • Spectrum Analysis, Raman
  • T-Lymphocytes / cytology*
  • T-Lymphocytes / drug effects

Substances

  • Cryoprotective Agents