A microplate-based bioassay system for measuring porcine serum mitogenic activity

Area of Science:

• Animal Science
• Biotechnology
• Cell Biology

Background:

• Porcine serum mitogenic activity is a key indicator of growth factor levels.
• Accurate measurement of growth factors is crucial for understanding animal development and health.
• Existing methods for measuring mitogenic activity can be costly or lack precision.

Purpose of the Study:

• To develop and validate a novel bioassay system for quantifying porcine serum mitogenic activity.
• To establish a sensitive, economical, and precise method for assessing growth factor activity in pigs.
• To provide a tool for advancing research in porcine growth regulation.

Main Methods:

• Utilized a MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazoliumbromide] cell proliferation assay.
• Employed the non-fusing myoblast cell line BC3H1 to enhance assay precision through increased seeding density.
• Automated data acquisition and processing using a computer-controlled ELISA reader in 96-well microplates.

Main Results:

• The developed bioassay system demonstrated high sensitivity and economic viability compared to electronic cell counting.
• The assay's precision was improved by using the BC3H1 cell line, allowing for higher seeding densities.
• Results obtained from the bioassay system showed a high correlation with established methods, such as Kotts' method.

Conclusions:

• The novel bioassay system provides a reliable and efficient tool for measuring porcine serum mitogenic activity.
• This assay system holds significant potential for research into growth regulation mechanisms in pigs.
• The method offers a practical and precise approach for studying growth factors in swine serum.