Abstract:
:The QSAR and docking studies were performed on fifty seven steroids with binding affinities for corticosteroid-binding globulin (CBG) and eighty four steroids with binding affinities for sex hormone-binding globulin (SHBG). Since the steroidal compounds have binding affinity for both CBG and SHBG, multi-target QSAR approach was employed to establish a unique QSAR method for simultaneous evaluation of the CBG and SHBG binding affinities. The constitutional, geometrical, physico-chemical and electronic descriptors were computed for the examined structures by use of the Chem3D Ultra 7.0.0, the Dragon 6.0, the MOPAC2009, and the Chemical Descriptors Library (CDL) program. Partial least squares regression (PLSR) has been applied for selection of the most relevant molecular descriptors and QSAR models building. The QSAR (SHGB) model, QSAR model (CBG), and multi-target QSAR model (CBG, SHBG) were created. The multi-target QSAR model (CBG and SHBG) was found to be more effective in describing the CBG and SHBG affinity of steroids in comparison to the one target models (QSAR (SHGB) model, QSAR model (CBG)). The multi-target QSAR study indicated the importance of the electronic descriptor (Mor16v), steric/symmetry descriptors (Eig06_EA(ed)), 2D autocorrelation descriptor (GATS4m), distance distribution descriptor (RDF045m), and atom type fingerprint descriptor (CDL-ATFP 253) in describing the CBG and SHBG affinity of steroidal compounds. Results of the created multi-target QSAR model were in accordance with the performed docking studies. The theoretical study defined physicochemical, electronic and structural requirements for selective and effective binding of steroids to the CBG and SHBG active sites.
journal_name
Curr Comput Aided Drug Desjournal_title
Current computer-aided drug designauthors
Nikolic K,Filipic S,Agbaba Ddoi
10.2174/157340912803519642subject
Has Abstractpub_date
2012-12-01 00:00:00pages
296-308issue
4eissn
1573-4099issn
1875-6697pii
CCADD-EPUB-20120116-006journal_volume
8pub_type
杂志文章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
pub_type: 杂志文章
doi:10.2174/1573409913666170303113812
更新日期:2017-01-01 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
更新日期:2013-06-01 00:00:00
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
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abstract::PMD (p-menthane-3-8-diol) is an insect repellent that can be synthesized chemically or derived from a steam distillate residue of the leaves of lemon eucalyptus, Corymbia citriodora. It is one of the few natural product endorsed by the Center for Disease Control (USA) for topical application to protect against mosquit...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/15734099113099990021
更新日期:2013-09-01 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
abstract:BACKGROUND:Trypanosoma brucei (T. brucei) is the cause of the deadly human African trypanosomiasis (HAT) with a case fatality ratio of 10%. OBJECTIVE:Targeting the essential Trypanosomal glucose metabolism pathway through the inhibition of phosphoglycerate kinase (PGK) and glyceraldehyde-3-phosphate dehydrogenase (GAP...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409916666200722140704
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abstract:BACKGROUND:Virtual screening of candidate drug molecules using machine learning techniques plays a key role in pharmaceutical industry to design and discovery of new drugs. Computational classification methods can determine drug types according to the disease groups and distinguish approved drugs from withdrawn ones. ...
journal_title:Current computer-aided drug design
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doi:10.2174/1573409915666190716143601
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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
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doi:10.2174/157340991004150518150646
更新日期:2014-01-01 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
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abstract:BACKGROUND:Various applications of nanosubstances in industrial and consumer goods sectors are growing rapidly because of their useful chemical and physical properties. OBJECTIVES:Assessment of hazard posed by exposure to nanosubstances is essential for the protection of human and ecological health. METHODS:We analyz...
journal_title:Current computer-aided drug design
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journal_title:Current computer-aided drug design
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doi:10.2174/1386207319666161214112536
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abstract::Interrelated Two-way Clustering (ITC) is an unsupervised clustering method developed to divide samples into two groups in gene expression data obtained through microarrays, selecting important genes simultaneously in the process. This has been found to be a better approach than conventional clustering methods like K-m...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/15734099113096660045
更新日期:2013-12-01 00:00:00
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journal_title:Current computer-aided drug design
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更新日期:2015-01-01 00:00:00
abstract:AIM AND OBJECTIVE:Isoflavone phytoestrogens, which commonly present in natural plants, are closely related to human health. The combination of them with estrogen receptors in the body can play a more important role in the prevention and treatment of cardiovascular diseases, cancer, and menopausal diseases. This researc...
journal_title:Current computer-aided drug design
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doi:10.2174/1573409916666200712140245
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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
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更新日期:2011-03-01 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
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doi:10.2174/157340991102150904101740
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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
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更新日期:2011-12-01 00:00:00
abstract::The role of molecular topology (MT) in the design and selection of new drugs is discussed. After an overview of the different in silico molecular design current technologies, the QSAR analysis is dealt in detail with particular emphasis in the use of topological indices as molecular descriptors. The results of the app...
journal_title:Current computer-aided drug design
pub_type: 杂志文章,评审
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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
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abstract:BACKGROUND:The prevalence of multi-drug resistance S. aureus is one of the most challenging tasks for the treatment of nosocomial infections. Proteins and enzymes of peptidoglycan biosynthesis pathway are one among the well-studied targets, but many of the enzymes are unexplored as targets. MurE is one such enzyme feat...
journal_title:Current computer-aided drug design
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doi:10.2174/1573409912666161010142943
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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
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abstract::The present work employs 152 benzene-carboxylic acid' esters having computed the toxicity within the range [2.251, 10.222] for fathead minnow fish (Pimephales promelas). Calibration set includes many pairs having very similar chemical structure, size, shape and hydrophilicity, but very different value of ECOSAR toxici...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409910666140410094056
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abstract::The apparently paradoxical lack of correlation between the huge increase in the discovery of new potential drug targets made possible by the post-genomic sciences and new drugs development has stimulated many different interpretations. Here we illustrate the general principle of redundancy of biological pathways on ha...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/157340911796504297
更新日期:2011-09-01 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
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doi:10.2174/1573409914666180112100122
更新日期:2018-01-01 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::As crucial members of the G-protein coupled receptor (GPCR) superfamily, alpha (1)-adrenergic receptors (alpha(1)-ARs) are recognized to intervene the actions of endogenous catecholamines such as norepinephrine and epinephrine. So far three distinct alpha(1)-AR subtypes, alpha(1A), alpha(1B) and alpha(1D), have been c...
journal_title:Current computer-aided drug design
pub_type: 杂志文章,评审
doi:10.2174/157340910791760082
更新日期:2010-09-01 00:00:00
abstract::Induction of apoptosis by the activation of caspase 3 makes it a promising target for designing anticancer drugs hence an investigation for the essential structural features mandatory for caspase 3 activation has been carried out using a dataset comprising of caspase 3 activator candidate drug Azixa in phase II clinic...
journal_title:Current computer-aided drug design
pub_type: 杂志文章
doi:10.2174/1573409911666150701103342
更新日期:2015-01-01 00:00:00
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
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更新日期:2020-07-17 00:00:00
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