Promega, JA1115, LAG-3/MHCII Blockade Bioassay

Assay Performance Data
Accuracy and Precision are critical to bioassays and the development of biologics. The LAG-3/MHCII Blockade Bioassay is both accurate and precise. Accuracy is a measure of how close results are to a target or reference value. Precision is a measure of repeatability. This assay was developed and prequalified according to ICH guidelines for accuracy and precision, giving it the performance characteristics required for many applications of a bioassay used for antibody drug discovery research and development.
Accuracy: Measure of ability to replicated a reference or "target" value.
IntraLab Precision: Measure of repeatability from multiple assays of the same homogeneous sample under the same operating conditions over a short time (same analyst; same lab; same day).
Intermediate Precision: Measure of repeatability of multiple assays of the same homogeneous sample with different analysts or equipment or on different days.
Linearity: Ability of your assay to provide measured values that are proportional to the concentration of the sample.
The CTLA-4 Blockade Bioassay Shows Precision, Accuracy and Linearity.
The LAG-3/MHCII Blockade Bioassay reflects the MOA and specificity of biologics designed to block the LAG-3/MHCII Interaction.
LAG-3 Effector Cells were incubated with TCR Activating Antigen and MHCII APC cells in the presence of anti-LAG-3, anti-PD-1, anti-CTLA-4 or anti-TIGIT antibodies, as indicated.
The LAG-3/MHCII Blockade Bioassay measures the activity of Control Ab, Anti-LAG-3.
MHCII APC Cells and TCR Activating Antigen were plated overnight. The following day, a titration of Control Ab, Anti-LAG-3 was added to the plate, followed by LAG-3 Effector Cells, and then incubated for 5 hours.