Cell cryoperservation with DMSO

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SUMMARY

DMSO (Dimethyl Sulfoxide) does not replace water in cells during cryopreservation, contrary to some claims. Research indicates that DMSO aids in preventing cell damage by alleviating osmotic stress and inhibiting ice crystal formation, which can harm cellular membranes. At specific concentrations, DMSO can thin the lipid bilayer and create transient holes, potentially damaging the membrane at higher concentrations. The consensus is that DMSO plays a protective role rather than substituting for water.

PREREQUISITES
  • Understanding of cryopreservation techniques
  • Knowledge of cell membrane structure and function
  • Familiarity with the properties of DMSO
  • Basic principles of osmotic stress in biological systems
NEXT STEPS
  • Research the mechanisms of DMSO in cryopreservation
  • Study the effects of different concentrations of DMSO on cell membranes
  • Learn about alternative cryoprotectants and their mechanisms
  • Explore the role of ice crystal formation in cellular damage during freezing
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Researchers in cell biology, laboratory technicians involved in cryopreservation, and anyone studying the effects of cryoprotectants on cellular integrity.

HappMatt
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So my question is this does DMSO as someone in the lab I am working at says "it replaces the water in the cell" is that true??

From what I have read in journals a couple of journal articles they never said anything about it replacing the water. It did talk about thinning of the bilayer and at certain concentrations starting to form transient holes in the bi layer and even destroying the membrane at high enough concentrations. I was under the assumption that the DMSO helps prevent cell damage by helping relive osmotic stress and helping the water not to form crystals that damage the membrane. I'm guessing there is more to it than that but the idea that it totally replaces the water I wasn't to sure about and have yet to find a definitive answer.
 
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My understanding is that DMSO prevents the nucleation of ice crystals. It does not "replace" water.
 

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