Appraisal of anti-protozoan activity of nitroaromatic benzenesulfonamides inhibiting carbonic anhydrases from and .

J Enzyme Inhib Med Chem

a Department of Neuroscience, Psychology, Drug Research and Child's Health, Section of Pharmaceutical and Nutraceutical Sciences , University of Florence, Sesto Fiorentino , Italy.

Published: December 2019

Chagas disease and leishmaniasis are neglected tropical disorders caused by the protozoans and spp. Carbonic anhydrases (CAs, EC 4.2.1.1) from these protozoans (α-TcCA and β-LdcCA) have been validated as promising targets for chemotherapic interventions. Many anti-protozoan agents, such as nitroimidazoles, nifurtimox, and benznidazole possess a nitro aromatic group in their structure which is crucial for their activity. As a continuation of our previous work on -nitrosulfonamides as anti-protozoan agents, we investigated benzenesulfonamides bearing a nitro aromatic moiety against TcCA and LdcCA, observing selective inhibitions over human off-target CAs. Selected derivatives were assessed in different developmental stages of and spp. A lack of significant growth inhibition has been found, which has been connected to the low permeability of this class of derivatives through cell membranes. Further strategies necessarily need to be designed for targeting Chagas disease and leishmaniasis with nitro-containing CA inhibitors.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6598531PMC
http://dx.doi.org/10.1080/14756366.2019.1626375DOI Listing

Publication Analysis

Top Keywords

carbonic anhydrases
8
chagas disease
8
disease leishmaniasis
8
anti-protozoan agents
8
nitro aromatic
8
appraisal anti-protozoan
4
anti-protozoan activity
4
activity nitroaromatic
4
nitroaromatic benzenesulfonamides
4
benzenesulfonamides inhibiting
4

Similar Publications

Some novel sulphonyl thiourea derivatives (7a-m) containing 4,6-diarylpyrimidine rings were designed and synthesized using a one-pot procedure. These compounds exhibited remarkable dual inhibitory activity against human carbonic anhydrase CA I, CA II, CA IX, and XII isoenzymes and some cancer cell lines. Among them, some thioureas had significantly more potent inhibitory activities in the order of 7l > 7c > 7f (against the CA I isoform), 7f > 7b > 7c (against the CA II isoform), 7c > 7g > 7a > 7b (against the CA IX isoform), and 7d > 7c > 7g > 7f (against the CA XII isoform).

View Article and Find Full Text PDF

Carbonic anhydrases (CAs) IX and XII are crucial for the survival and metastasis of solid tumors under hypoxic conditions. We designed compounds -, integrating triazole and benzenesulfonamide scaffolds known for inhibiting tumor-associated CAs IX/XII. Initial synthesis included compounds -, followed by diversification with small hydrophobic groups (-) and hydrophilic heterocyclic secondary amines (-).

View Article and Find Full Text PDF

This study is focused on the design, synthesis, and evaluation of some sulfonamide derivatives for their inhibitory effects on human carbonic anhydrase (hCA) enzymes I, II, IX, and XII as well as for their antioxidant activity. The purity of the synthesized molecules was confirmed by the HPLC purity analysis and was found in the range of 93%-100%. The inhibition constant (K) against hCA I ranged from 0.

View Article and Find Full Text PDF

Tetrazole Is a Novel Zinc Binder Chemotype for Carbonic Anhydrase Inhibition.

ACS Med Chem Lett

January 2025

NEUROFARBA Department, Section of Pharmaceutical Science, University of Florence, Via Ugo Schiff 6, 50019 Sesto Fiorentino, Florence, Italy.

The tetrazole group is here proposed as a zinc-binding warhead for the inhibition of the metalloenzyme carbonic anhydrases. A set of synthesized derivatives incorporating the tetrazole moiety were evaluated as inhibitors against a panel of human isoforms, exhibiting values spanning between the submicromolar and low-to-medium micromolar ranges (0.62-19.

View Article and Find Full Text PDF

Tumor-associated human carbonic anhydrases (hCAs), particularly isoforms hCA IX and hCA XII, are overexpressed in hypoxic regions of solid tumors and play a crucial role in regulating pH homeostasis, promoting cancer cell survival and enhancing invasiveness. These enzymes have emerged as promising therapeutic targets in cancer treatment, including photothermal therapy (PTT). PTT is a minimally invasive technique that uses light-absorbing agents to convert near-infrared (NIR) light into heat, effectively inducing localized hyperthermia and promoting cancer cell apoptosis.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!