A murine leukemia virus yield-reduction semi-microassay for interferon.

Area of Science:

• Virology
• Immunology
• Assay Development

Background:

• Murine cells chronically infected with leukemia virus produce infectious virions.
• Interferon (IF) treatment is known to modulate viral replication in cells.

Purpose of the Study:

• To develop a novel, semi-microassay for quantifying interferon (IF) activity.
• To leverage the virus yield-reduction principle for IF detection.

Main Methods:

• Treatment of murine leukemia virus-producing cells with interferon.
• Quantification of extracellular virus yield as a measure of IF activity.
• Development of a semi-microassay format combining features of virus yield-reduction and plaque-reduction assays.

Main Results:

• Interferon treatment significantly decreased the yield of extracellular leukemia virus.
• The developed semi-microassay demonstrated utility for IF detection.
• The assay is economical and suitable for screening multiple samples.

Conclusions:

• The principle of reduced virus yield upon interferon treatment can be reliably used for a sensitive IF assay.
• This novel semi-microassay offers an efficient and cost-effective alternative for interferon detection in research and diagnostics.