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Cañizares-Carmenate Y, Perera-Sardiña Y, Marrero-Ponce Y, Díaz-Amador R, Torrens F, Castillo-Garit JA. Ligand and structure-based discovery of phosphorus-containing compounds as potential metalloproteinase inhibitors. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2024; 35:219-240. [PMID: 38380444 DOI: 10.1080/1062936x.2024.2314103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 01/29/2024] [Indexed: 02/22/2024]
Abstract
In this study, a methodology is proposed, combining ligand- and structure-based virtual screening tools, for the identification of phosphorus-containing compounds as inhibitors of zinc metalloproteases. First, we use Dragon molecular descriptors to develop a Linear Discriminant Analysis classification model, which is widely validated according to the OECD principles. This model is simple, robust, stable and has good discriminating power. Furthermore, it has a defined applicability domain and it is used for virtual screening of the DrugBank database. Second, docking experiments are carried out on the identified compounds that showed good binding energies to the enzyme thermolysin. Considering the potential toxicity of phosphorus-containing compounds, their toxicological profile is evaluated according to Protox II. Of the five molecules evaluated, two show carcinogenic and mutagenic potential at small LD50, not recommended as drugs, while three of them are classified as non-toxic, and could constitute a starting point for the development of new vasoactive metalloprotease inhibitor drugs. According to molecular dynamics simulation, two of them show stable interactions with the active site maintaining coordination with the metal. A high agreement is evident between QSAR, docking and molecular dynamics results, demonstrating the potentialities of the combination of these tools.
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Affiliation(s)
- Y Cañizares-Carmenate
- Unit of Computer-Aided Molecular ''Biosilico" Discovery and Bioinformatic Research (CAMD-BIR Unit), Departamento de Farmacia, Facultad de Química-Farmacia, Universidad Central ''Marta Abreu" de Las Villas, Santa Clara, Cuba
| | - Y Perera-Sardiña
- Departamento de Ciencias Básicas Biomédicas, Facultad de Ciencias de la Salud, Universidad de Talca, Talca, Chile
| | - Y Marrero-Ponce
- Grupo de Medicina Molecular Y Traslacional (MeM & T), Escuela de Medicina, Universidad San Francisco de Quito, Edificio de Especialidades Médicas, Quito, Ecuador
| | - R Díaz-Amador
- Laboratorio de Bioinformática y Química Computacional, Escuela de Química y Farmacia, Facultad de Medicina, Universidad Católica de Maule, Maule, Chile
| | - F Torrens
- Institut Universitari de Ciència Molecular, Universitat de València, Edifici d'Instituts de Paterna, València, Spain
| | - J A Castillo-Garit
- Instituto Universitario de Investigación y Desarrollo Tecnológico (IDT), Universidad Tecnológica Metropolitana, Santiago, Chile
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Resino-Ruiz D, Gonzalez-Madariaga Y, Nieto L, Linares YM, León JOG, Martín AV, Díaz AV, Torrens F, Castillo-Garit JA. Anti-inflammatory Activity: In silico and In vivo of Sapogenins Present in Agave brittoniana subsp. brachypus (Trel.). Antiinflamm Antiallergy Agents Med Chem 2023; 22:42-48. [PMID: 37114792 DOI: 10.2174/1871523022666230419103027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/08/2023] [Accepted: 02/27/2023] [Indexed: 04/29/2023]
Abstract
BACKGROUND Agave brittoniana subsp. brachypus is an endemic plant of Cuba, which contains different steroidal sapogenins with anti-inflammatory effects. This work aims to develop computational models which allow the identification of new chemical compounds with potential anti-inflammatory activity. METHODS The in vivo anti-inflammatory activity was evaluated in two rat models: carrageenaninduced paw edema and cotton pellet-induced granuloma. In each study, we used 30 Sprague Dawley male rats divided into five groups containing six animals. The products isolated and administrated were fraction rich in yuccagenin and sapogenins crude. RESULTS The obtained model, based on a classification tree, showed an accuracy value of 86.97% for the training set. Seven compounds (saponins and sapogenins) were identified as potential antiinflammatory agents in the virtual screening. According to in vivo studies, the yuccagenin-rich fraction was the greater inhibitor of the evaluated product from Agave. CONCLUSION The evaluated metabolites of the Agave brittoniana subsp. Brachypus showed an interesting anti-inflammatory effect.
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Affiliation(s)
- Dayana Resino-Ruiz
- Unidad de Toxicología Experimental, Universidad de Ciencias Médicas de Villa Clara, Santa Clara, 50200, Villa Clara, Cuba
| | - Yisel Gonzalez-Madariaga
- Unidad de Toxicología Experimental, Universidad de Ciencias Médicas de Villa Clara, Santa Clara, 50200, Villa Clara, Cuba
| | - Leisy Nieto
- Departamento de Farmacia, Facultad de Química-Farmacia, Universidad Central "Marta Abreu" de Las Villas, Santa Clara, 54830, Villa Clara, Cuba
| | - Yilka Mena Linares
- Unidad de Toxicología Experimental, Universidad de Ciencias Médicas de Villa Clara, Santa Clara, 50200, Villa Clara, Cuba
| | - Jose Orestes Guerra León
- Departamento de Química, Facultad de Química-Farmacia, Universidad Central "Marta Abreu" de Las Villas, Santa Clara, 54830, Villa Clara, Cuba
| | - Arlena Vázquez Martín
- Departamento de Química, Facultad de Química-Farmacia, Universidad Central "Marta Abreu" de Las Villas, Santa Clara, 54830, Villa Clara, Cuba
| | - Arianna Valido Díaz
- Unidad de Toxicología Experimental, Universidad de Ciencias Médicas de Villa Clara, Santa Clara, 50200, Villa Clara, Cuba
| | - Francisco Torrens
- Institut Universitari de Ciència Molecular, Universitat de València, Edifici d'Instituts de Paterna, P.O. Box 22085, E-46071, València, Spain
| | - Juan A Castillo-Garit
- Unidad de Toxicología Experimental, Universidad de Ciencias Médicas de Villa Clara, Santa Clara, 50200, Villa Clara, Cuba
- Institut Universitari de Ciència Molecular, Universitat de València, Edifici d'Instituts de Paterna, P.O. Box 22085, E-46071, València, Spain
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Cañizares-Carmenate Y, Mena-Ulecia K, MacLeod Carey D, Perera-Sardiña Y, Hernández-Rodríguez EW, Marrero-Ponce Y, Torrens F, Castillo-Garit JA. Machine learning approach to discovery of small molecules with potential inhibitory action against vasoactive metalloproteases. Mol Divers 2021; 26:1383-1397. [PMID: 34216326 DOI: 10.1007/s11030-021-10260-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 06/17/2021] [Indexed: 11/26/2022]
Abstract
With the advancement of combinatorial chemistry and big data, drug repositioning has boomed. In this sense, machine learning and artificial intelligence techniques offer a priori information to identify the most promising candidates. In this study, we combine QSAR and docking methodologies to identify compounds with potential inhibitory activity of vasoactive metalloproteases for the treatment of cardiovascular diseases. To develop this study, we used a database of 191 thermolysin inhibitor compounds, which is the largest as far as we know. First, we use Dragon's molecular descriptors (0-3D) to develop classification models using Bayesian networks (Naive Bayes) and artificial neural networks (Multilayer Perceptron). The obtained models are used for virtual screening of small molecules in the international DrugBank database. Second, docking experiments are carried out for all three enzymes using the Autodock Vina program, to identify possible interactions with the active site of human metalloproteases. As a result, high-performance artificial intelligence QSAR models are obtained for training and prediction sets. These allowed the identification of 18 compounds with potential inhibitory activity and an adequate oral bioavailability profile, which were evaluated using docking. Four of them showed high binding energies for the three enzymes, and we propose them as potential dual ACE/NEP inhibitors for the control of blood pressure. In summary, the in silico strategies used here constitute an important tool for the early identification of new antihypertensive drug candidates, with substantial savings in time and money.
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Affiliation(s)
- Yudith Cañizares-Carmenate
- Unit of Computer-Aided Molecular ''Biosilico" Discovery and Bioinformatic Research (CAMD-BIR Unit), Facultad de Química-Farmacia, Universidad Central ''Marta Abreu" de Las Villas, 54830, Santa Clara, Villa Clara, Cuba
| | - Karel Mena-Ulecia
- Departamento de Ciencias Biológicas Y Químicas, Facultad de Recursos Naturales, Universidad Católica de Temuco, Ave. Rudecindo Ortega, 02950, Temuco, Chile
- Núcleo de Investigación en Bioproductos Y Materiales Avanzados (BIOMA), Facultad de Ingeniería, Universidad Católica de Temuco, Ave. Rudecindo Ortega, 02950, Temuco, Chile
| | - Desmond MacLeod Carey
- Facultad de Ingeniería, Inorganic Chemistry and Molecular Materials Center, Instituto de Ciencias Químicas Aplicadas, Universidad Autónoma de Chile, El Llano Subercaseaux, San Miguel, 2801, Santiago, Chile
| | - Yunier Perera-Sardiña
- Laboratorio de Bioinformática Y Química Computacional, Escuela de Química Y Farmacia, Facultad de Medicina, Universidad Católica de Maule, Talca, Chile
| | - Erix W Hernández-Rodríguez
- Laboratorio de Bioinformática Y Química Computacional, Escuela de Química Y Farmacia, Facultad de Medicina, Universidad Católica de Maule, Talca, Chile
| | - Yovani Marrero-Ponce
- Grupo de Medicina Molecular Y Traslacional (MeM & T), Escuela de Medicina, Universidad San Francisco de Quito, Edificio de Especialidades Médicas, Av. Interoceánica Km 12½, Quito, Ecuador
| | - Francisco Torrens
- Institut Universitari de Ciència Molecular, Universitat de València, Edifici D'Instituts de Paterna, P.O. Box 22085, 46071, València, Spain
| | - Juan A Castillo-Garit
- Unidad de Toxicología Experimental, Universidad de Ciencias Médicas de Villa Clara, Carretera a Acueducto Y Circunvalación, CP: 50200, Santa Clara, Villa Clara, Cuba.
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Castillo-Garit JA, Barigye SJ, Pham-The H, Pérez-Doñate V, Torrens F, Pérez-Giménez F. Computational identification of chemical compounds with potential anti-Chagas activity using a classification tree. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2021; 32:71-83. [PMID: 33455460 DOI: 10.1080/1062936x.2020.1863857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/10/2020] [Indexed: 06/12/2023]
Abstract
Chagas disease is endemic to 21 Latin American countries and is a great public health problem in that region. Current chemotherapy remains unsatisfactory; consequently the need to search for new drugs persists. Here we present a new approach to identify novel compounds with potential anti-chagasic action. A large dataset of 584 compounds, obtained from the Drugs for Neglected Diseases initiative, was selected to develop the computational model. Dragon software was used to calculate the molecular descriptors and WEKA software to obtain the classification tree. The best model shows accuracy greater than 93.4% for the training set; the tree was also validated using a 10-fold cross-validation procedure and through a test set, achieving accuracy values over 90.5% and 92.2%, correspondingly. The values of sensitivity and specificity were around 90% in all series; also the false alarm rate values were under 10.5% for all sets. In addition, a simulated ligand-based virtual screening for several compounds recently reported as promising anti-chagasic agents was carried out, yielding good agreement between predictions and experimental results. Finally, the present work constitutes an example of how this rational computer-based method can help reduce the cost and increase the rate in which novel compounds are developed against Chagas disease.
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Affiliation(s)
- J A Castillo-Garit
- Unidad de Toxicología Experimental, Universidad de Ciencias Médicas de Villa Clara , Villa Clara, Cuba
- Unidad de Investigación de Diseño de Fármacos y Conectividad Molecular, Departamento de Química Física, Facultad de Farmacia, Universitat de València , Valencia, Spain
| | - S J Barigye
- Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid (UAM) , Madrid, Spain
| | - H Pham-The
- Department of Pharmaceutical Chemistry, Hanoi University of Pharmacy , Hanoi, Viet-nam
| | - V Pérez-Doñate
- Departamento de Microbiología, Hospital Universitario de la Ribera , Valencia, Spain
| | - F Torrens
- Institut Universitari de Ciència Molecular, Universitat de València, Edifici d'Instituts de Paterna , València, Spain
| | - F Pérez-Giménez
- Unidad de Investigación de Diseño de Fármacos y Conectividad Molecular, Departamento de Química Física, Facultad de Farmacia, Universitat de València , Valencia, Spain
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Cañizares-Carmenate Y, Campos Delgado LE, Torrens F, Castillo-Garit JA. Thorough evaluation of OECD principles in modelling of 1-[(2-hydroxyethoxy)methyl]-6-(phenylthio)thymine derivatives using QSARINS. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2020; 31:741-759. [PMID: 32892643 DOI: 10.1080/1062936x.2020.1810116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 08/11/2020] [Indexed: 06/11/2023]
Abstract
The human immunodeficiency virus is a lethal pathology considered as a worldwide problem. The search for new strategies for the treatment of this disease continues to be a great challenge in the scientific community. In this study, a series of 107 derivatives of 1-[(2-hydroxyethoxy)methyl]-6-(phenylthio)thymine, previously evaluated experimentally against HIV-I reverse transcriptase, was used to model antiretroviral activity. A model of linear regression, implemented in the QSARINS software, was developed with a genetic algorithm for variable selection. The fit of its parameters was good and exhaustive validation, according to the OECD regulatory principles, was performed. Also, the applicability domain was established. In addition, its robustness (r 2 = 0.84), stability (Q 2 LOO = 0.81; Q 2 LMO = 0.80) and good predictive power (r 2 EXT = 0.85) is proved. So, it was used to predict the antiretroviral activity of eight compounds obtained by rational drug design. Finally, it can be affirmed that the proposed tools allow the rapid and economic identification of potential antiretroviral drugs.
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Affiliation(s)
- Y Cañizares-Carmenate
- Unit of Computer-Aided Molecular "Biosilico" Discovery and Bioinformatic Research (CAMD-BIR Unit), Facultad de Química-Farmacia, Universidad Central "Marta Abreu" de Las Villas , Santa Clara, Cuba
| | - L E Campos Delgado
- Unit of Computer-Aided Molecular "Biosilico" Discovery and Bioinformatic Research (CAMD-BIR Unit), Facultad de Química-Farmacia, Universidad Central "Marta Abreu" de Las Villas , Santa Clara, Cuba
| | - F Torrens
- Institut Universitari de Ciència Molecular, Universitat de València, Edifici d'Instituts de Paterna , València, Spain
| | - J A Castillo-Garit
- Unidad de Toxicología Experimental, Universidad de Ciencias Médicas de Villa Clara , Santa Clara, Cuba
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Zanni R, Galvez-Llompart M, Garcia-Domenech R, Galvez J. What place does molecular topology have in today’s drug discovery? Expert Opin Drug Discov 2020; 15:1133-1144. [DOI: 10.1080/17460441.2020.1770223] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Riccardo Zanni
- Molecular Topology and Drug Design Unit, Department of Physical Chemistry, University of Valencia, Valencia, Spain
- Departamento de Microbiologia, Facultad de Ciencias, Universidad de Malaga, Málaga, Spain
| | - Maria Galvez-Llompart
- Molecular Topology and Drug Design Unit, Department of Physical Chemistry, University of Valencia, Valencia, Spain
- Instituto de Tecnología Química, UPV-CSIC, Universidad Politécnica de Valencia, Valencia, Spain
| | - Ramon Garcia-Domenech
- Molecular Topology and Drug Design Unit, Department of Physical Chemistry, University of Valencia, Valencia, Spain
| | - Jorge Galvez
- Molecular Topology and Drug Design Unit, Department of Physical Chemistry, University of Valencia, Valencia, Spain
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Halder AK, Dias Soeiro Cordeiro MN. Advanced in Silico Methods for the Development of Anti- Leishmaniasis and Anti-Trypanosomiasis Agents. Curr Med Chem 2020; 27:697-718. [DOI: 10.2174/0929867325666181031093702] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 07/24/2018] [Accepted: 09/19/2018] [Indexed: 11/22/2022]
Abstract
Leishmaniasis and trypanosomiasis occur primarily in undeveloped countries and account
for millions of deaths and disability-adjusted life years. Limited therapeutic options, high toxicity of
chemotherapeutic drugs and the emergence of drug resistance associated with these diseases demand
urgent development of novel therapeutic agents for the treatment of these dreadful diseases. In the last
decades, different in silico methods have been successfully implemented for supporting the lengthy and
expensive drug discovery process. In the current review, we discuss recent advances pertaining to in
silico analyses towards lead identification, lead modification and target identification of antileishmaniasis
and anti-trypanosomiasis agents. We describe recent applications of some important in
silico approaches, such as 2D-QSAR, 3D-QSAR, pharmacophore mapping, molecular docking, and so
forth, with the aim of understanding the utility of these techniques for the design of novel therapeutic
anti-parasitic agents. This review focuses on: (a) advanced computational drug design options; (b) diverse
methodologies - e.g.: use of machine learning tools, software solutions, and web-platforms; (c)
recent applications and advances in the last five years; (d) experimental validations of in silico predictions;
(e) virtual screening tools; and (f) rationale or justification for the selection of these in silico
methods.
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Affiliation(s)
- Amit Kumar Halder
- LAQV@ REQUIMTE/Department of Chemistry and Biochemistry, University of Porto, Porto 4169-007, Portugal
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Cañizares-Carmenate Y, Alcántara Cárdenas A, Roche Llerena V, Torrens F, Castillo-Garit JA. Computational approach to the discovery of potential neprilysin inhibitors compounds for cardiovascular diseases treatment. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02529-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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An approach to identify new antihypertensive agents using Thermolysin as model: In silico study based on QSARINS and docking. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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10
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Fonseca-Berzal C, Arán VJ, Escario JA, Gómez-Barrio A. Experimental models in Chagas disease: a review of the methodologies applied for screening compounds against Trypanosoma cruzi. Parasitol Res 2018; 117:3367-3380. [PMID: 30232605 DOI: 10.1007/s00436-018-6084-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 09/11/2018] [Indexed: 01/29/2023]
Abstract
One of the main problems of Chagas disease (CD), the parasitic infection caused by Trypanosoma cruzi, is the lack of a completely satisfactory treatment, which is currently based on two old nitroheterocyclic drugs (i.e., nifurtimox and benznidazole) that show important limitations for treating patients. In this context, many laboratories look for alternative therapies potentially applicable to the treatment, and therefore, research in CD chemotherapy works in the design of experimental protocols for detecting molecules with activity against T. cruzi. Phenotypic assays are considered the most valuable strategy for screening these antiparasitic compounds. Among them, in vitro experiments are the first step to test potential anti-T. cruzi drugs directly on the different parasite forms (i.e., epimastigotes, trypomastigotes, and amastigotes) and to detect cytotoxicity. Once the putative trypanocidal drug has been identified in vitro, it must be moved to in vivo models of T. cruzi infection, to explore (i) acute toxicity, (ii) efficacy during the acute infection, and (iii) efficacy in the chronic disease. Moreover, in silico approaches for predicting activity have emerged as a supporting tool for drug screening procedures. Accordingly, this work reviews those in vitro, in vivo, and in silico methods that have been routinely applied during the last decades, aiming to discover trypanocidal compounds that contribute to developing more effective CD treatments.
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Affiliation(s)
- Cristina Fonseca-Berzal
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad Complutense de Madrid, Pza. Ramón y Cajal s/n, 28040, Madrid, Spain.
| | - Vicente J Arán
- Instituto de Química Médica (IQM), Consejo Superior de Investigaciones Científicas (CSIC), c/ Juan de la Cierva 3, 28006, Madrid, Spain
| | - José A Escario
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad Complutense de Madrid, Pza. Ramón y Cajal s/n, 28040, Madrid, Spain
| | - Alicia Gómez-Barrio
- Departamento de Microbiología y Parasitología, Facultad de Farmacia, Universidad Complutense de Madrid, Pza. Ramón y Cajal s/n, 28040, Madrid, Spain
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Martínez-López Y, Barigye SJ, Martínez-Santiago O, Marrero-Ponce Y, Green J, Castillo-Garit JA. Prediction of aquatic toxicity of benzene derivatives using molecular descriptor from atomic weighted vectors. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 56:314-321. [PMID: 29091819 DOI: 10.1016/j.etap.2017.10.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 10/09/2017] [Accepted: 10/11/2017] [Indexed: 06/07/2023]
Abstract
Several descriptors from atom weighted vectors are used in the prediction of aquatic toxicity of set of organic compounds of 392 benzene derivatives to the protozoo ciliate Tetrahymena pyriformis (log(IGC50)-1). These descriptors are calculated using the MD-LOVIs software and various Aggregation Operators are examined with the aim comparing their performances in predicting aquatic toxicity. Variability analysis is used to quantify the information content of these molecular descriptors by means of an information theory-based algorithm. Multiple Linear Regression with Genetic Algorithms is used to obtain models of the structure-toxicity relationships; the best model shows values of Q2=0.830 and R2=0.837 using six variables. Our models compare favorably with other previously published models that use the same data set. The obtained results suggest that these descriptors provide an effective alternative for determining aquatic toxicity of benzene derivatives.
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Affiliation(s)
- Yoan Martínez-López
- Department of Computer Sciences, Faculty of Informatics, Camaguey University, Camaguey City, 74650, Camaguey, Cuba; Unit of Computer-Aided Molecular "Biosilico" Discovery and Bioinformatic Research (CAMD-BIR Unit), Faculty of Chemistry-Pharmacy. Universidad Central "Martha Abreu" de Las Villas, Santa Clara, 54830, Villa Clara, Cuba
| | - Stephen J Barigye
- Departamento de Química, Universidade Federal de Lavras, CP 3037, 37200-000, Lavras, MG, Brazil
| | - Oscar Martínez-Santiago
- Unit of Computer-Aided Molecular "Biosilico" Discovery and Bioinformatic Research (CAMD-BIR Unit), Faculty of Chemistry-Pharmacy. Universidad Central "Martha Abreu" de Las Villas, Santa Clara, 54830, Villa Clara, Cuba
| | - Yovani Marrero-Ponce
- Universidad San Francisco de Quito (USFQ), Grupo de Medicina Molecular y Traslacional (MeM&T), Colegio de Ciencias de la Salud (COCSA), Escuela de Medicina, Edificio de Especialidades Médicas, Av. Interoceánica Km 12 ½, Cumbayá, Ecuador
| | - James Green
- Department of Systems and Computer Engineering, Carleton University, Ottawa, Ontario, Canada
| | - Juan A Castillo-Garit
- Unit of Computer-Aided Molecular "Biosilico" Discovery and Bioinformatic Research (CAMD-BIR Unit), Faculty of Chemistry-Pharmacy. Universidad Central "Martha Abreu" de Las Villas, Santa Clara, 54830, Villa Clara, Cuba; Department of Systems and Computer Engineering, Carleton University, Ottawa, Ontario, Canada; Unidad de Toxicologia Experimental, Universidad de Ciencias Médicas de Villa Clara Santa Clara, 50200, Villa Clara, Cuba.
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Castillo-Garit JA, Casañola-Martin GM, Barigye SJ, Pham-The H, Torrens F, Torreblanca A. Machine learning-based models to predict modes of toxic action of phenols to Tetrahymena pyriformis. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2017; 28:735-747. [PMID: 29022372 DOI: 10.1080/1062936x.2017.1376705] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 09/01/2017] [Indexed: 06/07/2023]
Abstract
The phenols are structurally heterogeneous pollutants and they present a variety of modes of toxic action (MOA), including polar narcotics, weak acid respiratory uncouplers, pro-electrophiles, and soft electrophiles. Because it is often difficult to determine correctly the mechanism of action of a compound, quantitative structure-activity relationship (QSAR) methods, which have proved their interest in toxicity prediction, can be used. In this work, several QSAR models for the prediction of MOA of 221 phenols to the ciliated protozoan Tetrahymena pyriformis, using Chemistry Development Kit descriptors, are reported. Four machine learning techniques (ML), k-nearest neighbours, support vector machine, classification trees, and artificial neural networks, have been used to develop several models with higher accuracies and predictive capabilities for distinguishing between four MOAs. They showed global accuracy values between 95.9% and 97.7% and area under Receiver Operator Curve values between 0.978 and 0.998; additionally, false alarm rate values were below 8.2% for training set. In order to validate our models, cross-validation (10-folds-out) and external test-set were performed with good behaviour in all cases. These models, obtained with ML techniques, were compared with others previously reported by other researchers, and the improvement was significant.
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Affiliation(s)
- J A Castillo-Garit
- a Unidad de Toxicología Experimental , Universidad de Ciencias Médicas de Villa Clara , Santa Clara , Villa Clara , Cuba
- b Departament de Biología Funcional i Antropología Física , Universitat de València , Burjassot , Spain
| | - G M Casañola-Martin
- c Departamento de Química Física, Facultad de FarmaciaUnidad de Investigación de Diseño de Fármacos y Conectividad Molecular , Universitat de València , Spain
| | - S J Barigye
- d Department of Chemistry , McGill University , Montréal , Québec , Canada
| | - H Pham-The
- e Hanoi University of Pharmacy , Hoan Kiem, Hanoi , Vietnam
| | - F Torrens
- f Institut Universitari de Ciència Molecular , Universitat de València, Edifici d'Instituts de Paterna , Valencia , Spain
| | - A Torreblanca
- b Departament de Biología Funcional i Antropología Física , Universitat de València , Burjassot , Spain
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Njogu PM, Guantai EM, Pavadai E, Chibale K. Computer-Aided Drug Discovery Approaches against the Tropical Infectious Diseases Malaria, Tuberculosis, Trypanosomiasis, and Leishmaniasis. ACS Infect Dis 2016; 2:8-31. [PMID: 27622945 DOI: 10.1021/acsinfecdis.5b00093] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Despite the tremendous improvement in overall global health heralded by the adoption of the Millennium Declaration in the year 2000, tropical infections remain a major health problem in the developing world. Recent estimates indicate that the major tropical infectious diseases, namely, malaria, tuberculosis, trypanosomiasis, and leishmaniasis, account for more than 2.2 million deaths and a loss of approximately 85 million disability-adjusted life years annually. The crucial role of chemotherapy in curtailing the deleterious health and economic impacts of these infections has invigorated the search for new drugs against tropical infectious diseases. The research efforts have involved increased application of computational technologies in mainstream drug discovery programs at the hit identification, hit-to-lead, and lead optimization stages. This review highlights various computer-aided drug discovery approaches that have been utilized in efforts to identify novel antimalarial, antitubercular, antitrypanosomal, and antileishmanial agents. The focus is largely on developments over the past 5 years (2010-2014).
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Affiliation(s)
- Peter M. Njogu
- Department of Pharmaceutical Chemistry and ‡Division of Pharmacology, School of Pharmacy, University of Nairobi, P.O. Box 19676-00202, Nairobi, Kenya
- Department of Chemistry, ⊗Institute of Infectious
Disease and Molecular Medicine, and ΘSouth African Medical Research Council Drug
Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa
| | - Eric M. Guantai
- Department of Pharmaceutical Chemistry and ‡Division of Pharmacology, School of Pharmacy, University of Nairobi, P.O. Box 19676-00202, Nairobi, Kenya
- Department of Chemistry, ⊗Institute of Infectious
Disease and Molecular Medicine, and ΘSouth African Medical Research Council Drug
Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa
| | - Elumalai Pavadai
- Department of Pharmaceutical Chemistry and ‡Division of Pharmacology, School of Pharmacy, University of Nairobi, P.O. Box 19676-00202, Nairobi, Kenya
- Department of Chemistry, ⊗Institute of Infectious
Disease and Molecular Medicine, and ΘSouth African Medical Research Council Drug
Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa
| | - Kelly Chibale
- Department of Pharmaceutical Chemistry and ‡Division of Pharmacology, School of Pharmacy, University of Nairobi, P.O. Box 19676-00202, Nairobi, Kenya
- Department of Chemistry, ⊗Institute of Infectious
Disease and Molecular Medicine, and ΘSouth African Medical Research Council Drug
Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa
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