6ECZ
Bioreductive 4-hydroxy-3-nitro-5-ureido-benzenesulfonamides selectively target the tumor-associated carbonic anhydrase isoforms IX and XII and show hypoxia-enhanced cytotoxicity against human cancer cell lines.
Summary for 6ECZ
| Entry DOI | 10.2210/pdb6ecz/pdb |
| Descriptor | Carbonic anhydrase 2, ZINC ION, N-[2-hydroxy-3-nitro-5-(nitrosulfonyl)phenyl]-N'-(pentafluorophenyl)urea, ... (4 entities in total) |
| Functional Keywords | hypoxia, carbonic anhydrase ix, carbonic anhydrase xii, inhibition, anti-proliferative., lyase, lyase-lyas inhibitor complex, lyase/lyas inhibitor |
| Biological source | Homo sapiens (Human) |
| Total number of polymer chains | 1 |
| Total formula weight | 29470.31 |
| Authors | Singh, S.,McKenna, R.,Supuran, C.T.,Nocentini, A.,Lomelino, C.,Lucarini, E.,Bartolucci, G.,Mannelli, L.D.C.,Ghelardini, C.,Gratteri, P. (deposition date: 2018-08-08, release date: 2018-11-28, Last modification date: 2024-05-01) |
| Primary citation | Nocentini, A.,Trallori, E.,Singh, S.,Lomelino, C.L.,Bartolucci, G.,Di Cesare Mannelli, L.,Ghelardini, C.,McKenna, R.,Gratteri, P.,Supuran, C.T. 4-Hydroxy-3-nitro-5-ureido-benzenesulfonamides Selectively Target the Tumor-Associated Carbonic Anhydrase Isoforms IX and XII Showing Hypoxia-Enhanced Antiproliferative Profiles. J. Med. Chem., 61:10860-10874, 2018 Cited by PubMed Abstract: Human carbonic anhydrases (CA, EC, 4.2.1.1) 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. PubMed: 30433782DOI: 10.1021/acs.jmedchem.8b01504 PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (2.21 Å) |
Structure validation
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