Isolation of hepatocytes from postnatal mice

Area of Science:

• Hepatology
• Toxicology
• Biochemistry

Background:

• Investigating drug metabolism and toxicity in developing organisms is crucial.
• Existing methods for hepatocyte isolation may not be optimal for young animals.

Purpose of the Study:

• To develop and validate a method for isolating viable hepatocytes from postnatal mice.
• To assess the metabolic and toxicological capacity of these isolated hepatocytes.

Main Methods:

• Retrograde liver perfusion with collagenase-containing bicarbonate buffer.
• Selective adsorption of viable hepatocytes onto collagen membranes.
• Assessment of cell viability using ATP, glutathione, lactate:pyruvate ratio, and protein synthesis.

Main Results:

• A reliable method for isolating hepatocytes from 1- to 3-week-old mice was established.
• Isolated postnatal hepatocytes demonstrated acetaminophen metabolism and susceptibility to toxicity.
• Key viability parameters were comparable to adult hepatocytes and whole liver.

Conclusions:

• The developed method provides a valuable tool for studying drug metabolism and toxicity in the postnatal mouse liver.
• This technique facilitates research into developmental toxicology and pharmacokinetics.