Fig. 1From: In vivo bioluminescence imaging for leptomeningeal dissemination of medulloblastoma in mouse modelsRetroviral construct that contains the effLuc gene and Thy1.1 (CD90.1), linked with an internal ribosomal entry site (IRES). The luciferase activity of effLuc cells cultured in a 96-well plate was measured using an IVIS-100 optical imaging device. Firefly luciferase activity continuously increased in effLuc cells in proportion to cell numberBack to article page