The binding mode of aromatic sulphonamides and clinically licenced drugs to the three carbonic anhydrase (CA, EC 4.2.1.1) isoforms from the human pathogen was here thouroghly characterised by a joint docking and molecular dynamics protocol. In fact, VchCA, VchCAβ, and VchCAγ are crucial in the pathogen life cycle and growth and represent innovative targets to fight proliferation overcoming the spreading chemoresistance to the available drugs. A set of 40 sulphonamides/sulfamates VchCAs inhibitors was studied using the proteins homology built 3 D models unveiling the key and stable interactions responsible for a potent CA inhibition. This study has the aim to offer insights and guidelines for the future rational design of potent and selective inhibitors targeting CA isoforms from or other human pathogens.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7822066PMC
http://dx.doi.org/10.1080/14756366.2020.1862102DOI Listing

Publication Analysis

Top Keywords

aromatic sulphonamides
8
sulphonamides clinically
8
clinically licenced
8
licenced drugs
8
isoforms human
8
inhibition α-
4
α- β-
4
β- γ-carbonic
4
γ-carbonic anhydrases
4
anhydrases pathogenic
4

Similar Publications

The design and synthesis of unique two series of fluorinated sulfonamides 3a-f and 5a-g utilizing nucleophilic aromatic substitution reactions of tetrafluorophthalonitrile 1 with various sulfonamides 2 under a variety of different reactions conditions were the key goals of the current research. The chemical composition of the generated products has been investigated via mass spectroscopy, HNMR, CNMR, infrared, and elemental analyzes. Antimicrobial studies were conducted in vitro to evaluate the activity of all new synthesized compounds against resistant strains.

View Article and Find Full Text PDF

The glucoconjugation between linear chimeric α-(1→4)- and α-(1→6)-glucosidic segments exhibits functional properties throughout their structure. In this study, we enzymatically synthesized three new series of chimeric nonreducing isomaltomegalosaccharides (N-IMS-n/m), each featuring a constant n, α-(1→4)-segment (average degree of polymerization, DP = 22-25) at the nonreducing terminal, and varying m, α-(1→6)-main chain lengths (DP = 7-53). The synthesized compounds-N-IMS-25/7, N-IMS-24/19, and N-IMS-22/53-were compared to amylose (DP = 28) and previous samples of N-IMS-15/35 and D-IMS-28.

View Article and Find Full Text PDF

Tetrandrine (Tet), a bisbenzylisoquinoline alkaloid from , is noted for its diverse pharmacological effects but faces limitations in clinical use due to toxicity, poor solubility, and low bioavailability. Researchers are working to address these issues by developing Tet derivatives with greater therapeutic potential through structural modification. Generally, key modifications include: 1) introducing an aromatic heterocycle or a hydrophobic alkyne unit at the -5 position can enhance its antitumor activity; 2) adding an amide, sulfonamide, or electron-withdrawing group at the -14 position can enhance its antitumor activity; 3) changing its structure to a quaternary ammonium salt can alter its solubility and greatly boost its antibacterial activity; 4) structural modification of the -12-methoxybenzyl motif can enhance its metabolic stability and thus change the activity of the analogs; 5) Tet structural simplification may result in the identification of anticancer lead compounds with novel mechanisms of action.

View Article and Find Full Text PDF

Effect of Water Networks On Ligand Binding: Computational Predictions vs Experiments.

J Chem Inf Model

December 2024

Medicinal Chemistry Research Group, Drug Innovation Centre, HUN-REN Research Centre for Natural Sciences, Magyar tudósok krt. 2, Budapest 1117, Hungary.

Rational drug design focuses on the explanation and prediction of complex formation between therapeutic targets and small-molecule ligands. As a third and often overlooked interacting partner, water molecules play a critical role in the thermodynamics of protein-ligand binding, impacting both the entropy and enthalpy components of the binding free energy and by extension, on-target affinity and bioactivity. The community has realized the importance of binding site waters, as evidenced by the number of computational tools to predict the structure and thermodynamics of their networks.

View Article and Find Full Text PDF

Discovery of GS-2278, a Potent and Selective LPAR1 Antagonist for the Treatment of Idiopathic Pulmonary Fibrosis.

J Med Chem

November 2024

Gilead Sciences Inc., 333 Lakeside Drive, Foster City, California 94404, United States.

Article Synopsis
  • Researchers discovered a strong and selective antagonist for the lysophosphatidic acid receptor 1 (LPAR1), which has antifibrotic properties, initially validated through a specific assay involving MRTF-A.* -
  • Structural modifications improved the compound's stability and pharmacokinetics, leading to a promising candidate for oral dosing that effectively blocked LPA-induced histamine release and showed efficacy against lung fibrosis in preclinical tests.* -
  • Despite its potential, the development of the LPAR1 antagonist was discontinued due to observed CNS toxicity in dog models, raising safety concerns for clinical use in idiopathic pulmonary fibrosis (IPF).*
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!