The IVISbrite™ U87 MG Red F-luc tumor cell line (Bioware® Brite U87MG-Red-FLuc) is a light-producing cell line derived from U87 MG-human brain glioblastoma. The cells have been stably transduced with the red-shifted firefly luciferase gene from Luciola Italica (Red F-luc), for a brighter, red-shifted signal.