In vivo anti-tumor activity of GBT. The A431 cells were injected into anthymic nude mice and treated daily with either vehicle or 600 mg/Kg for 14 days, which was terminated at the end of 15 days. The results show the significant reduction of tumors by GBT. (A) Tumor growth inhibition by GBT. (B) Changes in body weight during the administration of GBT. (C, D) Comparision of anti-tumor activity between vehicle and GBT according the representive tumor images and the measurement of tumor weight. Data shown are mean ± SD, *
P < 0.05 versus vehicle.