After you have adoptively transferred the cells, you will inject the mouse with D-luciferin, the substrate for the luciferase enzyme. The cells will then emit light, which can be captured and quantified using an IVIS or similar BLI system.
The primary advantage is for in vivo adoptive transfer studies. You can inject these cells into a mouse and then track their migration, proliferation, and localization non-invasively using Bioluminescence Imaging (BLI). This is much more quantitative than fluorescence.
For Research Use Only. Do Not Use in Food Manufacturing or Medical Procedures (Diagnostics or Therapeutics). Do Not Use in Humans.