Cryopreservation of Hepatocytes

Area of Science:

• Hepatocyte biology
• Cryobiology
• Drug metabolism studies

Background:

• Cryopreserved hepatocytes are increasingly utilized due to advancements in preservation techniques.
• The US Food and Drug Administration has approved their use in drug metabolizing enzyme induction studies.
• Cryopreservation allows for the long-term storage and availability of functional hepatocytes.

Purpose of the Study:

• To provide a comprehensive overview of hepatocyte cryopreservation theories and methods.
• To offer practical guidance for successful cryopreservation of hepatocytes.
• To highlight critical parameters influencing cell viability and function after thawing.

Main Methods:

• Discussion of theoretical principles underlying cryopreservation.
• Detailed examination of practical methods for cryopreserving hepatocytes.
• Emphasis on optimizing parameters like cell density, cryoprotectants, freezing media, storage, and thawing.

Main Results:

• Cryopreserved hepatocytes can retain functions comparable to fresh cells post-thaw.
• Established protocols enable successful cryopreservation of both human and animal hepatocytes.
• Optimized parameters are crucial for maintaining cell viability and function.

Conclusions:

• Cryopreservation is a validated technique for preserving hepatocyte function.
• Standardized methods and parameter optimization are key to successful hepatocyte cryopreservation.
• Cryopreserved hepatocytes are a valuable tool in drug discovery and toxicology research.