Ehrlich ascites tumor preservation for fifteen years--a simple method

Area of Science:

• Oncology
• Cell Biology
• Cryobiology

Background:

• Ehrlich ascites tumor is a widely used model in cancer research.
• Long-term preservation of viable tumor cells is crucial for consistent experimental results.
• Traditional preservation methods may lead to cell damage or loss of viability over time.

Purpose of the Study:

• To evaluate a novel cryopreservation method for Ehrlich ascites tumor cells.
• To determine the long-term viability of tumor cells preserved using this method.
• To establish a reliable protocol for storing Ehrlich ascites tumor for extended periods.

Main Methods:

• Ehrlich ascites tumor cells were collected.
• An equal volume of 40% glycerol solution was added to the tumor cell preparation.
• The mixture was directly placed into a freezer maintained at -60°C for long-term storage.

Main Results:

• The Ehrlich ascites tumor cells remained viable after 15 years of storage at -60°C using the described method.
• The cryopreservation technique effectively protected the tumor cells from damage during prolonged freezing.
• No significant loss of cell viability was observed over the 15-year period.

Conclusions:

• Cryopreservation with 40% glycerol at -60°C is a highly effective method for long-term preservation of Ehrlich ascites tumor.
• This method ensures the availability of viable tumor cells for research purposes over extended durations.
• The simplicity and efficacy of this technique make it a valuable tool for cancer research laboratories.