Mohammad A. Khanfar

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The Red Sea sponge Hemimycale arabica afforded the known (Z)-5-(4-hydroxybenzylidene)-hydantoin (1), (R)-5-(4-hydroxybenzyl)hydantoin (2), and (Z)-5-((6-bromo-1H-indol-3-yl)methylene)-hydantoin (3). The natural phenylmethylene hydantoin (PMH) 1 and the synthetic (Z)-5-(4-(ethylthio)benzylidene)-hydantoin (4) showed potent in vitro anti-growth and(More)
The mammalian target of rapamycin (mTOR) has an important role in cell growth, proliferation, and survival. mTOR is frequently hyperactivated in cancer, and therefore, it is a clinically validated target for cancer therapy. In this study, we combined exhaustive pharmacophore modeling and quantitative structure-activity relationship (QSAR) analysis to(More)
The reported anti-cancer properties of oleuropein combined with the recently elucidated role of mammalian target of rapamycin (mTOR) in various cancers, suggested the possibility that oleuropein inhibits mTOR. To validate this hypothesis, we docked oleuropein into the ATP-binding pocket of a close mTOR protein homolog, namely PI3K-γ. Apparently, oleuropein(More)
Check point kinase 1 (Chk1) is an important protein in G2 phase checkpoint arrest required by cancer cells to maintain cell cycle and to prevent cell death. Therefore, Chk1 inhibitors should have potential as anti-cancer therapeutics. Docking-based comparative intermolecular contacts analysis (dbCICA) is a new three-dimensional quantitative structure(More)
The mammalian target of rapamycin (mTOR) 8 has an important role in cell growth, proliferation, and survival. 9 mTOR is frequently hyperactivated in cancer, and therefore, it 10 is a clinically validated target for cancer therapy. In this study, 11 we combined exhaustive pharmacophore modeling and 12 quantitative structure−activity relationship (QSAR)(More)
Nicotinic acid has been reported as a potential inhibitor of carbonic anhydrase III enzyme. Carbonic anhydrase III (CAIII) is an emerging new pharmacological target for the management of dyslipidemia and cancer progression. The activity of 6-substituted nicotinic acid analogs against carbonic anhydrase III was studied using a size-exclusion chromatography.(More)
With the very recent market approval of pitolisant (Wakix®), the interest in clinical applications of novel multifunctional histamine H3 receptor antagonists has clearly increased. Since histamine H3 receptor antagonists in clinical development have been tested for a variety of different indications, the combination of pharmacological properties in one(More)
High expression of Nek2 has been detected in several types of cancer and it represents a novel target for human cancer. In the current study, structure-based pharmacophore modeling combined with multiple linear regression (MLR)-based QSAR analyses was applied to disclose the structural requirements for NEK2 inhibition. Generated pharmacophoric models were(More)
Glucokinase (GK) is involved in normal glucose homeostasis and therefore it is a valid target for drug design and discovery efforts. GK activators (GKAs) have excellent potential as treatments of hyperglycemia and diabetes. The combined recent interest in GKAs, together with docking limitations and shortages of docking validation methods prompted us to use(More)
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