4-Hydroxy-3-nitro-5-ureido-benzenesulfonamides Selectively Target the Tumor-Associated Carbonic Anhydrase Isoforms IX and XII Showing Hypoxia-Enhanced Antiproliferative Profiles.Nocentini, A., Trallori, E., Singh, S., Lomelino, C.L., Bartolucci, G., Di Cesare Mannelli, L., Ghelardini, C., McKenna, R., Gratteri, P., Supuran, C.T.
(2018) J. Med. Chem. 61: 10860-10874
- PubMed: 30433782
- DOI: 10.1021/acs.jmedchem.8b01504
- Primary Citation of Related Structures:
- PubMed Abstract:
Human carbonic anhydrases (CA, EC, 188.8.131.52) IX and XII are overexpressed in cancer cells as adaptive response to hypoxia and acidic conditions characteristic of many tumors. In addition, hypoxia facilitates the activity of specific oxido-reductases t ...
Human carbonic anhydrases (CA, EC, 184.108.40.206) IX and XII are overexpressed in cancer cells as adaptive response to hypoxia and acidic conditions characteristic of many tumors. In addition, hypoxia facilitates the activity of specific oxido-reductases that may be exploited to selectively activate bioreductive prodrugs. Here, new selective CA IX/XII inhibitors, as analogues of the antitumor phase II drug SLC-0111 are described, namely ureido-substituted benzenesulfonamides appended with a nitro-aromatic moiety to yield an antiproliferative action increased by hypoxia. These compounds were screened for the inhibition of the ubiquitous hCA I/II and the target hCA IX/XII. Six X-ray crystallographies with CA II and IX/mimic allowed for the rationalization of the compounds inhibitory activity. The effects of some such compounds on the viability of HT-29, MDA-MB-231, and PC-3 human cancer cell lines in both normoxic and hypoxic conditions were examined, providing the initiation toward the development of hypoxia-activated antitumor CAIs.
Department of Biochemistry and Molecular Biology, College of Medicine , University of Florida , Gainesville , Florida 32610 , United States.,NEUROFARBA Dept., Sezione di Scienze Farmaceutiche , Università degli Studi di Firenze , Via Ugo Schiff 6 , 50019 Sesto Fiorentino Florence , Italy.,Department of NEUROFARBA-Pharmacology and Toxicology Section , University of Florence , 50019 Florence , Italy.