Antimetastatic Effect of Sulfamate Carbonic Anhydrase IX Inhibitors in Breast Carcinoma Xenografts
摘要:
A panel of compounds belonging to the underexposed sulfamate class of carbonic anhydrase (CA, EC 4.2.1.1) inhibitors was generated that displayed high specificity at nanomolar levels for the tumor-associated CA IX/XII isoforms. Three of the specific CA IX/XII inhibitors showed a positive response in in vitro assays for tumor cell migration and spreading. One of them, 4-(3'-(3 '',5 ''-dimethylphenyl)-ureido)phenyl sulfamate (S4), was taken forward into the orthotopic MDA-MB-231 (breast carcinoma) model in mice. Treatment with a 10 mg/kg maintenance dosage of S4 given daily on a "5 days on, 2 days off" regimen reduced metastatic tumor burden in the lung while not affecting primary tumor growth or mouse condition. CA inhibitors of the sulfamate class specifically targeting the tumor-associated isoforms are potential candidates in antimetastatic therapy.
A carbonic anhydrase IX (CA IX) inhibitor which comprises a compound of general formula: R—NH—CX—NH—(CH
2
)
n
—Ar-Q-SO
2
—NH
2
or a pharmaceutically-acceptable salt, derivative or prodrug thereof; wherein n=0, 1 or 2; Q is O or NH; X is O or S; and R comprises an organic substituent group.
Ureido-substituted sulfamates show potent carbonic anhydrase IX inhibitory and antiproliferative activities against breast cancer cell lines
作者:Jean-Yves Winum、Fabrizio Carta、Carol Ward、Peter Mullen、David Harrison、Simon P. Langdon、Alessandro Cecchi、Andrea Scozzafava、Ian Kunkler、Claudiu T. Supuran
DOI:10.1016/j.bmcl.2012.05.083
日期:2012.7
A series of 50 sulfamates were obtained by reacting 4-aminophenol with isocyanates followed by sulfamoylation. Most of the new compounds were nanomolar inhibitors of the tumor-associated carbonic anhydrase (CA, EC 4.2.1.1) isoforms IX and XII, whereas they inhibited less cytosolic offtarget isoforms CA I and II. Some of these sulfamates showed significant antiproliferative activity in several breast cancer cell lines, such as SKBR3, MCF10A, ZR75/1, MDA-MB-361 and MCF7, constituting interesting anticancer leads. (C) 2012 Elsevier Ltd. All rights reserved.
Antimetastatic Effect of Sulfamate Carbonic Anhydrase IX Inhibitors in Breast Carcinoma Xenografts
作者:Roben G. Gieling、Muhammad Babur、Lupti Mamnani、Natalie Burrows、Brian A. Telfer、Fabrizio Carta、Jean-Yves Winum、Andrea Scozzafava、Claudiu T. Supuran、Kaye J. Williams
DOI:10.1021/jm300529u
日期:2012.6.14
A panel of compounds belonging to the underexposed sulfamate class of carbonic anhydrase (CA, EC 4.2.1.1) inhibitors was generated that displayed high specificity at nanomolar levels for the tumor-associated CA IX/XII isoforms. Three of the specific CA IX/XII inhibitors showed a positive response in in vitro assays for tumor cell migration and spreading. One of them, 4-(3'-(3 '',5 ''-dimethylphenyl)-ureido)phenyl sulfamate (S4), was taken forward into the orthotopic MDA-MB-231 (breast carcinoma) model in mice. Treatment with a 10 mg/kg maintenance dosage of S4 given daily on a "5 days on, 2 days off" regimen reduced metastatic tumor burden in the lung while not affecting primary tumor growth or mouse condition. CA inhibitors of the sulfamate class specifically targeting the tumor-associated isoforms are potential candidates in antimetastatic therapy.