2-Methoxyestradiol disulfamate exhibits anti-angiogenic activity and induction of cell cycle arrest and apoptosis in human tumor xenografts, with clinical potential for hormone–independent tumors. Some of this activity stems from tubulin binding at the colchicine site and disruption of interphase microtubules. 2-Methoxyestradiol disulfamate is highly active in tumors that are resistant to chemotherapy.[4]
In xenograft models of breast and prostate cancer complete cures were achieved after oral treatment with 2-methoxyestradiol disulfamate and drug-resistant tumors also shrank in size after oral treatment.[2] Conventional treatments for hormone-independent cancers targeting tubulin are associated with side effects, such as neurotoxicity, and can only be given infrequently and intravenously. 2-Methoxyestradiol disulfamate is more effective on the same tumors, blocks metastatic spread without the peripheral neuropathy associated with current clinical anticancer drugs.[5]
^Leese MP, Leblond B, Smith A, Newman SP, Di Fiore A, De Simone G, et al. (December 2006). "2-substituted estradiol bis-sulfamates, multitargeted antitumor agents: synthesis, in vitro SAR, protein crystallography, and in vivo activity". Journal of Medicinal Chemistry. 49 (26): 7683–7696. doi:10.1021/jm060705x. PMID17181151.
^ abThomas MP, Potter BV (September 2015). "Estrogen O-sulfamates and their analogues: Clinical steroid sulfatase inhibitors with broad potential". The Journal of Steroid Biochemistry and Molecular Biology. 153 (19): 160–169. doi:10.1016/j.jsbmb.2015.03.012. PMID25843211. S2CID24116740.
