Abstract
We investigated the inhibition of five physiologically relevant CA isoforms with photochromic cis-1,2-alpha-dithienylethene-based compounds incorporating either a benzenesulfonamide and Cu(II)-iminodiacetic acid (IDA)-, bis-benzenesulfonamide-, bis-Cu(II)-IDA-, and bis-ethyleneglycol-methyl ether moieties, in both their open- and closed-ring forms. For hCA I the best inhibitors were the mono-prong bis-sulfonamide and the bis-Cu-IDA complexes (K(I)s of 2-3 nM) in their open form. For hCA II, best inhibitors were the open and closed forms of the mono-prong bis-sulfonamide (K(I)s of 13-18 nM). hCA IX was moderately inhibited by these compounds (K(I)s of 9-376 nM) whereas hCA XII and XIV were less susceptible to inhibition (K(I)s of 1.12-16.7 microM).
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Antigens, Neoplasm / chemistry
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Antigens, Neoplasm / metabolism
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Carbonic Anhydrase I / antagonists & inhibitors*
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Carbonic Anhydrase I / chemistry
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Carbonic Anhydrase II / antagonists & inhibitors*
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Carbonic Anhydrase II / chemistry
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Carbonic Anhydrase IX
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Carbonic Anhydrase Inhibitors / chemistry*
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Carbonic Anhydrase Inhibitors / pharmacology*
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Carbonic Anhydrases / chemistry
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Carbonic Anhydrases / metabolism
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Humans
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Isoenzymes / antagonists & inhibitors
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Isoenzymes / chemistry
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Photochemistry / methods*
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Structure-Activity Relationship
Substances
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Antigens, Neoplasm
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Carbonic Anhydrase Inhibitors
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Isoenzymes
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Carbonic Anhydrase I
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Carbonic Anhydrase II
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CA9 protein, human
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Carbonic Anhydrase IX
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Carbonic Anhydrases
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carbonic anhydrase XII