Camptothecin-20(S)-O-propionate (CZ48), the C20-propionate ester of CPT, is a highly effective anticancer agent. Camptothecin-20(S)-O-propionate (CZ48) is a topoisomerase-Ι inhibitor[1][2][3].
Camptothecin-20(S)-O-propionate (CZ48, gavage, 100 to 2000 mg/kg/day) exhibits anti-tumor activity in CLO-breast carcinoma (100 mg/kg) and PC3-prostate carcinoma (1000 mg/kg) models in mice[3]. Animal Model: A tumor xenograft growing in a nude mouse (size, ∼1 cm3)[3].
[1]. Zhisong Cao, et al. Crystalline camptothecin-20(S)-O-propionate hydrate: a novel anticancer agent with strong activity against 19 human tumor xenografts. Cancer Res. 2009 Jun 1;69(11):4742-9. [2]. Zhisong Cao, et al. Crystalline camptothecin-20(S)-O-propionate hydrate: a novel anticancer agent with strong activity against 19 human tumor xenografts. Cancer Res. 2009 Jun 1;69(11):4742-9. [3]. Xing Liu, et al. Correlation between the sensitivity of tumors to treatment with CZ48 and local concentrations of the active metabolite CPT within the tumors. Biomed Rep. 2013 Mar;1(2):202-206.