Isolation of bovine eosinophils by density gradient centrifugation

Area of Science:

• Veterinary Immunology
• Cell Biology

Background:

• Eosinophils play crucial roles in immunity and disease.
• Isolating pure and functional eosinophils is essential for research.
• Current methods for bovine eosinophil isolation may be inefficient or complex.

Purpose of the Study:

• To develop a simple and rapid method for isolating enriched bovine eosinophils.
• To ensure the isolated eosinophils are viable and retain their function.

Main Methods:

• Peripheral blood from cattle was collected.
• Density gradient centrifugation using a medium of specific gravity 1.092 was employed.
• Eosinophil purity, viability, and function were assessed.

Main Results:

• An enriched population of bovine eosinophils (greater than 60% purity) was successfully isolated.
• Cell viability was consistently high (greater than or equal to 95%).
• Isolated eosinophils demonstrated functionality in chemokinetic and antibody-dependent cellular-cytotoxicity assays.

Conclusions:

• This density gradient centrifugation method provides a simple, rapid, and effective way to obtain functional bovine eosinophils.
• The isolated cells are suitable for a wide range of assays evaluating eosinophil function.
• This technique facilitates further research into bovine eosinophil biology and immune responses.