Continued exploration of 1,2,4-oxadiazole periphery for carbonic anhydrase-targeting primary arene sulfonamides: Discovery of subnanomolar inhibitors of membrane-bound hCA IX isoform that selectively kill cancer cells in hypoxic environment.

Abstract:

:An expanded set of diversely substituted 1,2,4-oxadiazole-containing primary aromatic sulfonamides was synthesized and tested for inhibition of human carbonic anhydrase I, II, IX and XII isoforms. The initial biochemical profiling revealed a significantly more potent inhibition of cancer-related, membrane-bound isoform hCA IX (reaching into submicromolar range), on top of potent inhibition of hCA XII that is another cancer target. The observed structure-activity relationships have been rationalized by molecular modeling. Comparative single-concentration profiling of the carbonic anhydrase inhibitors synthesized for antiproliferative effects against normal (ARPE-19) and cancer (PANC-1) cell lines under chemically induced hypoxia conditions revealed several candidate compounds selectively targeting cancer cells. More in-depth characterization of these leads revealed two structurally related compounds that showed promising selective cytotoxicity against pancreatic cancer (PANC-1) and melanoma (SK-MEL-2) cell lines.

journal_name

Eur J Med Chem

authors

Krasavin M,Shetnev A,Sharonova T,Baykov S,Kalinin S,Nocentini A,Sharoyko V,Poli G,Tuccinardi T,Presnukhina S,Tennikova TB,Supuran CT

doi

10.1016/j.ejmech.2018.12.049

subject

Has Abstract

pub_date

2019-02-15 00:00:00

pages

92-105

eissn

0223-5234

issn

1768-3254

pii

S0223-5234(18)31087-0

journal_volume

164

pub_type

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