Fifteen new DOPA-derived pyrrole alkaloids, named baculiferins A-O (2-16), were isolated from the Chinese marine sponge Iotrochota baculifera, together with the known alkaloids purpurone (1) and ningalin A (17). Most of ...
Three 1-methoxy analogs of CP-47,497 (7, 8, and 19) have been synthesized and their affinities for the cannabinoid CB1 and CB2 receptors have been determined. Although these compounds exhibit selectivity for the CB2 rece...
The aim of this study was to develop a positron emission tomography (PET) tracer based on the dual P-glycoprotein (P-gp) breast cancer resistance protein (BCRP) inhibitor tariquidar (1) to study the interaction of 1 with...
Site-directed mutagenesis has been used to change one amino acid residue considered non essential (Phe91Asn) to catalysis in carbonic anhydrase (CA, EC 4.2.1.1) isozyme I (hCA I), but which is near the substrate binding ...
The peptide hormone ghrelin, which is the natural ligand of the membrane-bound growth hormone secretagogue receptor (GHS-R), regulates overall body and cell growth, energy homeostasis, carbohydrate, protein and lipid met...
The life cycle of HIV-1 requires extensive assistance from the integrase (IN) enzyme which therefore constitutes an attractive therapeutic target for the development of anti-AIDS agents. We herein report the synthesis an...
The pharmacophore model (Hypo1) with a well prediction capacity for CysLT(1) antagonists was developed using Catalyst/HypoGen program. Virtual screening against an in-house database consisted of carboxylated chalcones us...
Human airway trypsin-like protease (HAT), also referred to as TMPRSS11D, is an important physiological enzyme with the main activity pronounced in an airway. In this work we have described the substrate specificity and s...
Gold nanoparticles (GNPs) were modified with glutathione (GSH) to form GSH-capped GNPs, which have carboxyl groups on the surface of these nanoparticles. Then folic acid (FA) was conjugated with GNPs through the reaction...
The synthesis, DNA binding characteristics and biological activity of an N-formamido pyrrole-and imidazole-containing H-pin polyamide (f-PIP H-pin, 2) designed to selectively target the ICB2 site on the topoII alpha prom...
Analogs of nantenine were docked into a modeled structure of the human 5-HT2A receptor using ICM Pro, GLIDE, and GOLD docking methods. The resultant docking scores were used to correlate with observed in vitro apparent a...
Aromathecins are inhibitors of human topoisomerase I (Top1). These compounds are composites of several heteroaromatic systems, namely the camptothecins and indenoisoquinolines, and they possess notable Top1 inhibition an...
Tamoxifen is a selective estrogen receptor modulator widely used in oncology and reproductive endocrinology. In order to decrease its non-desirable effects and elucidate mechanisms of action, permanently charged tamoxife...
Screening of the NCI Diversity Set-1 identified PI-083 (NSC-45382) a proteasome inhibitor selective for cancer over normal cells. Focused libraries of novel compounds based on PI-083 chloronaphthoquinone and sulfonamide ...
Dual-target-directed 1,3-diphenylurea derivatives were designed by hybridizing BACE 1 inhibitor 1 with metal chelator LR-90. A database consisted of 1,3-diphenylurea derivatives was built and screened by the pharmacophor...
Sirtuins catalyze the NAD(+) dependent deacetylation of N-epsilon-acetyl lysine residues to nicotinamide, O '-acetyl- ADP-ribose (OAADPR) and N-epsilon-deacetylated lysine. Here, an easy-to-synthesize Ac-Ala-Lys-Ala sequ...