Abstract:
:Recent studies have demonstrated several biological activities of curcumin with therapeutic potential against Alzheimer's disease, among them the inhibition of the enzyme acetylcholinesterase (AChE). Aiming at identifying the chemical features relevant for this activity, the inhibition of curcumin and a set of 7 derivatives against AChE of E. electricus was measured. These derivatives presented lower activity than curcumin, allowing for the identification of possible unfavorable enzyme-inhibitor interactions. Our computational approach was to dock the molecules to the active site of AChE, followed by an analysis of hydrogen bonds and close contacts to relevant aromatic amino acid residues. To account for inhibitory activity, we sought to define the common structural features between known acetylcholinesterase inhibitors and the tested derivatives. A pharmacophore model was generated, which consisted of two hydrophobic, one aromatic and one hydrogen bond acceptor features. We conclude that the presence of two aromatic rings and the distance between them, allows curcumin and its derivatives to favorably interact with both the quaternary and peripheral sites of AChE. Hydrogen bonds can be formed with the quaternary and acyl sites, which should further stabilize the complex. The acylation of the hydroxyl groups and the reduction of the conjugated double bonds lowered the inhibitory activity, pointing to the modification of the keto-enol moiety as the best alternative for the design of more potent curcumin derivatives as acetylcholinesterase inhibitors.
journal_name
Curr Comput Aided Drug Desjournal_title
Current computer-aided drug designauthors
Tello-Franco V,Lozada-García MC,Soriano-García Mdoi
10.2174/15734099113099990007subject
Has Abstractpub_date
2013-06-01 00:00:00pages
289-98issue
2eissn
1573-4099issn
1875-6697pii
CCADD-EPUB-20121023-6journal_volume
9pub_type
杂志文章abstract:AIM:The aim of the study was to find out the role of auranofin as a promising broad spectrum antibacterial agent. METHODS:In-vitro assays (Percentage growth retardation, Bacterial growth kinetics, Biofilm formation assay) and In-silico study (Molegro virtual docker (MVD) version 6.0 and Molecular operating environment...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1386207323666200717155640
更新日期:2020-07-17 00:00:00
abstract::A new mathematical approach is proposed in the definition of molecular descriptors (MDs) based on the application of information theory concepts. This approach stems from a new matrix representation of a molecular graph (G) which is derived from the generalization of an incidence matrix whose row entries correspond to...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409911309020003
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abstract:BACKGROUND:Development of resistance by the malaria parasite Plasmodium falciparum has created challenges in the eradication of this deadly infectious disease. Hence newer strategies are adopted to combat this disease and simultaneously new lead/hit identification is going on worldwide to develop new chemotherapeutic a...
journal_title:Current computer-aided drug design
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abstract:BACKGROUND:Chemotherapy and radiotherapy have negative effects on normal tissues and they are very expensive and lengthy treatments. These disadvantages have recently attracted researchers to the new methods that specifically affect cancerous tissues and have lower damage to normal tissues. One of these methods is the ...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409914666181012151242
更新日期:2020-01-01 00:00:00
abstract::3D pharmacophore modeling is an important computational methodology for ligand-enzyme binding interactions in drug discovery. More specifically, a consensus pharmacophore model derived from diverse ligands is a key determinant upon which the prediction power of computational models is based for designing novel ligands...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/157340912803519615
更新日期:2012-12-01 00:00:00
abstract:BACKGROUND:Quantitative structure-activity relationship (QSAR) models could provide both statistical significance and useful chemical insights for drug design. The QSAR method has found applications for predicting diverse properties of organic compounds, including antiviral activities, toxicities and biological activit...
journal_title:Current computer-aided drug design
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doi:10.2174/1573409913666170303113812
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:Mixed ligand-metal complexes are efficient chelating agents because of flexible donor ability. Mixed ligand complexes containing hetero atoms sulphur, nitrogen and oxygen have been probed for their biological significance. OBJECTIVE:Nine mixed ligand-metal complexes of 2-(butan-2-ylidene) hydrazinecarbothio...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409915666190926122103
更新日期:2019-09-26 00:00:00
abstract::For three random splits, one-variable models of oximes reactivation of sarin inhibited acetylcholinesterase (logarithm of the AChE reactivation percentage by oximes with concentration of 0.001 M) have been calculated with CORAL software. The total number of considered oximes was 42. Simplified molecular input line ent...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:
更新日期:2014-11-26 00:00:00
abstract:AIM:To generate and validate predictive models for blood brain permeation (BBB) of CNS molecules using QSPR approach. BACKGROUND:Prediction of molecules crossing BBB remain a challenge in drug delivery. Predictive models are designed for evaluation of set of preclinical drugs which may serve as alternatives for determ...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409916666200131114018
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abstract:INTRODUCTION:Machine Learning is a useful tool for the prediction of cell-penetration compounds as drug candidates. MATERIALS AND METHODS:In this study, we developed a novel method for predicting Cell-Penetrating Peptides (CPPs) membrane penetrating capability. For this, we used orthogonal encoding to encode amino aci...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409914666180925100355
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abstract::The design of inhibitors specific for one relevant carbonic anhydrase isozyme is the major challenge in the new therapeutic agents development. Comparative computational chemical structure and biological activity relationship studies on a series of carbonic anhydrase II inhibitors, benzenesulfonamide derivatives, bear...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409911666150916092624
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:The Non-Small Cell Lung Cancer (NSCLC) alone is responsible for the sovereignty of demises worldwide related to the other cancers.ROS1 is a receptor tyrosine kinase (RTK), eminently recognized as the stereotyped oncogenic driver. These RTKs trigger an array of physiological regulations via cellular signal tr...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409916666200504105249
更新日期:2020-05-03 00:00:00
abstract::Hepatocellular Carcinoma is the most common primary malignant tumor of the liver. Development of multidrug resistance is the main obstacle to the success of anticancer drugs. In this study, designing and docking study of thiosemicarbazide hybrids with amino acids or peptides against hepatocellular carcinoma was perfor...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409911666151103114300
更新日期:2015-01-01 00:00:00
abstract::Acquired immunodeficiency syndrome (AIDS) is one of the most devastating diseases of current century which is caused by the human immunodeficiency virus (HIV). Although great efforts have been done to fight the virus, the need of new therapeutics candidates of any kind still remains. This process needs huge time and e...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/157340991004150518150646
更新日期:2014-01-01 00:00:00
abstract::Taking into consideration the high importance of the drug target 5-α-reductase (5αR) in prostate cancer in this work we are going first to review previous works and discuss works related to the computer aided drug design of 5αR inhibitors. We report new results in the in silico screening of natural 5αR inhibitors. Tra...
journal_title:Current computer-aided drug design
pub_type: 杂志文章,评审
doi:10.2174/157340911798260368
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND:Kinase domain of VEGFR-2 displays conformational flexibility which leads to existence of two kinds of inhibitors viz. type I and type II inhibitors. They exhibit different binding modes and this necessitates the development of separate pharmacophore models for them. METHODS:The virtual screening study for d...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1386207319666161214112536
更新日期:2017-01-01 00:00:00
abstract:INTRODUCTION:Mycobacterium tuberculosis has instigated a serious challenge toward the effective treatment of tuberculosis. The reoccurrence of the resistant strains of the disease to accessible drugs/medications has mandate for the development of more effective anti-tubercular agents with efficient activities. Time exp...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409916666200625142447
更新日期:2020-06-25 00:00:00
abstract::Leflunomide (LFM) and its active metabolite, teriflunomide (TFM), have drawn a lot of attention for their anticancer activities, treatment of rheumatoid arthritis and malaria due to their capability to inhibit dihydroorotate dehydrogenase (DHODH) and Plasmodium falciparum dihydroorotate dehydrogenase (PfDHODH) enzyme....
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409916666200527133126
更新日期:2020-05-27 00:00:00
abstract:BACKGROUND:Secreted Frizzled-Related Protein 4 (SFRP4) is a glycoprotein that acts as a competitor of both canonical and non-canonical Wnt pathways. SFRP4 is mostly expressed in ovary and plays a significant role as a target molecule to cure ovarian carcinoma. OBJECTIVE:Multiple chemical agonists are being used to cur...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409914666180112100122
更新日期:2018-01-01 00:00:00
abstract::A 3D-QSAR selectivity analysis of 53 adamantyl heteroaryl urea derivatives active against M. tuberculosis is reported. These analogs inhibit Mycobacterial Membrane Protein Large 3 (MmpL3), a proposed transporter for cell wall mycolic acids. However, these analogs also exhibit affinity towards human soluble epoxide hyd...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409911666150803154114
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abstract:INTRODUCTION:Lung carcinoma is the most commonly cancer causing deaths throughout the world that mainly occurs due to smoking. Small cell lung cancer and Non-small cell lung cancer (NSCLC) are the two different types of Lung cancer. For the detection and classification of lung cancer, there are different techniques in ...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
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abstract::The most common mechanism of the so-called multidrug resistance (MDR), is mainly associated with an over expression of P-glycoprotein (Pgp). It is an ATP-dependent transport protein that limits the intracellular accumulation of a variety of structurally unrelated compounds within various organs and normal tissues such...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/157340991003150302231140
更新日期:2014-01-01 00:00:00
abstract::Chemical and molecular graphs have fundamental applications in chemoinformatics, quantitative structureproperty relationships (QSPR), quantitative structure-activity relationships (QSAR), virtual screening of chemical libraries, and computational drug design. Chemoinformatics applications of graphs include chemical st...
journal_title:Current computer-aided drug design
pub_type: 杂志文章,评审
doi:10.2174/1573409911309020002
更新日期:2013-06-01 00:00:00
abstract::Pakistan possesses a rich and vast source of natural products (NPs). Some of these secondary metabolites have been identified as potent therapeutic agents. However, the medicinal usage of most of these compounds has not yet been fully explored. The discoveries for new scaffolds of NPs as inhibitors of certain enzymes ...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/157340991102150904101740
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Gefitinib (lressa) is the most prescribed drug, highly effective to treat nonsmall cell lung cancer; primarily it was considered that targeted therapy is a kinase inhibitor. The nonsmall cell lung cancer is caused by mutation in the Epithelial Growth Factor Receptor (EGFR) gene. Iressa works by blocking the ...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409914666180228111433
更新日期:2018-01-01 00:00:00
abstract::The first step in the process of drug development is to determine those lead compounds that demonstrate significant biological activity with regard to a target protein. Because this process is often costly and time consuming, there is a need to develop efficient methodologies for the generation of lead compounds for p...
journal_title:Current computer-aided drug design
pub_type: 杂志文章,评审
doi:10.2174/157340911793743556
更新日期:2011-03-01 00:00:00
abstract:BACKGROUND:Unconventional Knoevenagel-type indoles have been the topic of interest of many synthetic chemists because of its promising efficacy in different diseases including cancer. OBJECTIVE:To explore the structural requirements of Knoevenagel-type cytotoxic indoles for higher efficacy. METHODS:Multi-QSAR modelin...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409913666170309150014
更新日期:2017-11-10 00:00:00
abstract:BACKGROUND:Euterpe oleracea Martius, popularly known as açaí, is a fruit rich in α-tocopherols, fibers, lipids, mineral ions and polyphenols. It is believed that the high content of polyphenols, specially flavonoids, provides several health-promoting effects to the açaí fruit, including anti-inflammatory, immunomodulat...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409916666200619122803
更新日期:2020-06-19 00:00:00
abstract:BACKGROUND:Human African trypanosomiasis is a fatal disease prevalent in approximately 36 sub-Saharan countries. Emerging reports of drug resistance in Trypanosoma brucei are a serious cause of concern as only limited drugs are available for the treatment of the disease. Pteridine reductase is an enzyme of Trypanosoma ...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409915666190827163327
更新日期:2020-01-01 00:00:00
abstract::An important area of theoretical drug design research is quantitative structure activity relationship (QSAR) using structural invariants. The impetus for this research trend comes from various directions. Researchers in chemical documentation have searched for a set of invariants which will be more convenient than the...
journal_title:Current computer-aided drug design
pub_type: 杂志文章,评审
doi:10.2174/157340912800492384
更新日期:2012-06-01 00:00:00