Trypanosoma cruzi, the causative agent of Chagas disease, encodes for an α-carbonic anhydrase (CA, EC 4.2.1.1) possessing high catalytic activity (TcCA) which was recently characterized (Pan et al. J. Med. Chem. 2013, 56, 1761-1771). A new class of sulfonamides possessing low nanomolar/subnanomolar TcCA inhibitory activity is described here. Aromatic/heterocyclic sulfonamides incorporating halogeno/methoxyphenacetamido tails inhibited TcCA with KIs in the range of 0.5-12.5 nM, being less effective against the human off-target isoforms hCA I and II. A homology model of TcCA helped us to rationalize the excellent inhibition profile of these compounds against the protozoan enzyme, a putative new antitrypanosoma drug target. These compounds were ineffective antitrypanosomal agents in vivo due to penetrability problems of these highly polar molecules that possess sulfonamide moieties.

A class of sulfonamides with strong inhibitory action against the α-carbonic anhydrase from Trypanosoma cruzi / Güzel Akdemir, Ö.; Akdemir, A.; Pan, P.; Vermelho, A. B.; Parkkila, S.; Scozzafava, Andrea; Capasso, C.; Supuran, CLAUDIU TRANDAFIR. - In: JOURNAL OF MEDICINAL CHEMISTRY. - ISSN 0022-2623. - STAMPA. - 56(2013), pp. 5773-5781. [10.1021/jm400418p]

A class of sulfonamides with strong inhibitory action against the α-carbonic anhydrase from Trypanosoma cruzi.

SCOZZAFAVA, ANDREA;SUPURAN, CLAUDIU TRANDAFIR
2013

Abstract

Trypanosoma cruzi, the causative agent of Chagas disease, encodes for an α-carbonic anhydrase (CA, EC 4.2.1.1) possessing high catalytic activity (TcCA) which was recently characterized (Pan et al. J. Med. Chem. 2013, 56, 1761-1771). A new class of sulfonamides possessing low nanomolar/subnanomolar TcCA inhibitory activity is described here. Aromatic/heterocyclic sulfonamides incorporating halogeno/methoxyphenacetamido tails inhibited TcCA with KIs in the range of 0.5-12.5 nM, being less effective against the human off-target isoforms hCA I and II. A homology model of TcCA helped us to rationalize the excellent inhibition profile of these compounds against the protozoan enzyme, a putative new antitrypanosoma drug target. These compounds were ineffective antitrypanosomal agents in vivo due to penetrability problems of these highly polar molecules that possess sulfonamide moieties.
56
5773
5781
Güzel Akdemir, Ö.; Akdemir, A.; Pan, P.; Vermelho, A. B.; Parkkila, S.; Scozzafava, Andrea; Capasso, C.; Supuran, CLAUDIU TRANDAFIR
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2158/846141
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