Figure 1. Uptake and cytotoxicity of photofrin in human glioblastoma cells.

Human glioblastoma A172, U118MG, U87MG, SNB19, LN18, and T98G cells were incubated with 1 µg/ml photofrin. (a) Uptake of photofrin was time-dependent. (b) Photocytotoxic effect of photofrin was 670 nm light dose-dependent. (c) Photocytotoxic effect was photofrin dose-dependent. Data are presented as mean ± SEM of three independent experiments.