LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 10

Search options

  1. Article ; Online: Computational Prediction of Inhibitors and Inducers of the Major Isoforms of Cytochrome P450.

    Rudik, Anastassia / Dmitriev, Alexander / Lagunin, Alexey / Filimonov, Dmitry / Poroikov, Vladimir

    Molecules (Basel, Switzerland)

    2022  Volume 27, Issue 18

    Abstract: Human cytochrome P450 enzymes (CYPs) are heme-containing monooxygenases. This superfamily of drug-metabolizing enzymes is responsible for the metabolism of most drugs and other xenobiotics. The inhibition of CYPs may lead to drug-drug interactions and ... ...

    Abstract Human cytochrome P450 enzymes (CYPs) are heme-containing monooxygenases. This superfamily of drug-metabolizing enzymes is responsible for the metabolism of most drugs and other xenobiotics. The inhibition of CYPs may lead to drug-drug interactions and impair the biotransformation of drugs. CYP inducers may decrease the bioavailability and increase the clearance of drugs. Based on the freely available databases ChEMBL and PubChem, we have collected over 70,000 records containing the structures of inhibitors and inducers together with the IC50 values for the inhibitors of the five major human CYPs: 1A2, 3A4, 2D6, 2C9, and 2C19. Based on the collected data, we developed (Q)SAR models for predicting inhibitors and inducers of these CYPs using GUSAR and PASS software. The developed (Q)SAR models could be applied for assessment of the interaction of novel drug-like substances with the major human CYPs. The created (Q)SAR models demonstrated reasonable accuracy of prediction. They have been implemented in the web application P450-Analyzer that is freely available via the Internet.
    MeSH term(s) Cytochrome P-450 Enzyme System/metabolism ; Drug Interactions ; Heme ; Humans ; Microsomes, Liver/metabolism ; Protein Isoforms ; Xenobiotics
    Chemical Substances Protein Isoforms ; Xenobiotics ; Heme (42VZT0U6YR) ; Cytochrome P-450 Enzyme System (9035-51-2)
    Language English
    Publishing date 2022-09-10
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules27185875
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Web Service for HIV Drug Resistance Prediction Based on Analysis of Amino Acid Substitutions in Main Drug Targets.

    Paremskaia, Anastasiia Iu / Rudik, Anastassia V / Filimonov, Dmitry A / Lagunin, Alexey A / Poroikov, Vladimir V / Tarasova, Olga A

    Viruses

    2023  Volume 15, Issue 11

    Abstract: Predicting viral drug resistance is a significant medical concern. The importance of this problem stimulates the continuous development of experimental and new computational approaches. The use of computational approaches allows researchers to increase ... ...

    Abstract Predicting viral drug resistance is a significant medical concern. The importance of this problem stimulates the continuous development of experimental and new computational approaches. The use of computational approaches allows researchers to increase therapy effectiveness and reduce the time and expenses involved when the prescribed antiretroviral therapy is ineffective in the treatment of infection caused by the human immunodeficiency virus type 1 (HIV-1). We propose two machine learning methods and the appropriate models for predicting HIV drug resistance related to amino acid substitutions in HIV targets: (i) k-mers utilizing the random forest and the support vector machine algorithms of the scikit-learn library, and (ii) multi-n-grams using the Bayesian approach implemented in MultiPASSR software. Both multi-n-grams and k-mers were computed based on the amino acid sequences of HIV enzymes: reverse transcriptase and protease. The performance of the models was estimated by five-fold cross-validation. The resulting classification models have a relatively high reliability (minimum accuracy for the drugs is 0.82, maximum: 0.94) and were used to create a web application, HVR (HIV drug Resistance), for the prediction of HIV drug resistance to protease inhibitors and nucleoside and non-nucleoside reverse transcriptase inhibitors based on the analysis of the amino acid sequences of the appropriate HIV proteins from clinical samples.
    MeSH term(s) Humans ; Anti-HIV Agents/pharmacology ; Anti-HIV Agents/therapeutic use ; Bayes Theorem ; Amino Acid Substitution ; Reproducibility of Results ; HIV Reverse Transcriptase/genetics ; Reverse Transcriptase Inhibitors/pharmacology ; HIV Infections/drug therapy ; Drug Resistance, Viral/genetics ; HIV Protease/genetics
    Chemical Substances Anti-HIV Agents ; HIV Reverse Transcriptase (EC 2.7.7.49) ; Reverse Transcriptase Inhibitors ; HIV Protease (EC 3.4.23.-)
    Language English
    Publishing date 2023-11-11
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2516098-9
    ISSN 1999-4915 ; 1999-4915
    ISSN (online) 1999-4915
    ISSN 1999-4915
    DOI 10.3390/v15112245
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Computer-Aided Estimation of Biological Activity Profiles of Drug-Like Compounds Taking into Account Their Metabolism in Human Body.

    Filimonov, Dmitry A / Rudik, Anastassia V / Dmitriev, Alexander V / Poroikov, Vladimir V

    International journal of molecular sciences

    2020  Volume 21, Issue 20

    Abstract: Most pharmaceutical substances interact with several or even many molecular targets in the organism, determining the complex profiles of their biological activity. Moreover, due to biotransformation in the human body, they form one or several metabolites ...

    Abstract Most pharmaceutical substances interact with several or even many molecular targets in the organism, determining the complex profiles of their biological activity. Moreover, due to biotransformation in the human body, they form one or several metabolites with different biological activity profiles. Therefore, the development and rational use of novel drugs requires the analysis of their biological activity profiles, taking into account metabolism in the human body. In silico methods are currently widely used for estimating new drug-like compounds' interactions with pharmacological targets and predicting their metabolic transformations. In this study, we consider the estimation of the biological activity profiles of organic compounds, taking into account the action of both the parent molecule and its metabolites in the human body. We used an external dataset that consists of 864 parent compounds with known metabolites. It is shown that the complex assessment of active pharmaceutical ingredients' interactions with the human organism increases the quality of computer-aided estimates. The toxic and adverse effects showed the most significant difference: reaching 0.16 for recall and 0.14 for precision.
    MeSH term(s) Computer Simulation ; Computer-Aided Design ; Drug Design ; Drug Discovery/methods ; Humans ; Reproducibility of Results ; Software ; Structure-Activity Relationship
    Language English
    Publishing date 2020-10-11
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms21207492
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article: In Silico Prediction of Drug-Drug Interactions Mediated by Cytochrome P450 Isoforms.

    Dmitriev, Alexander V / Rudik, Anastassia V / Karasev, Dmitry A / Pogodin, Pavel V / Lagunin, Alexey A / Filimonov, Dmitry A / Poroikov, Vladimir V

    Pharmaceutics

    2021  Volume 13, Issue 4

    Abstract: Drug-drug interactions (DDIs) can cause drug toxicities, reduced pharmacological effects, and adverse drug reactions. Studies aiming to determine the possible DDIs for an investigational drug are part of the drug discovery and development process and ... ...

    Abstract Drug-drug interactions (DDIs) can cause drug toxicities, reduced pharmacological effects, and adverse drug reactions. Studies aiming to determine the possible DDIs for an investigational drug are part of the drug discovery and development process and include an assessment of the DDIs potential mediated by inhibition or induction of the most important drug-metabolizing cytochrome P450 isoforms. Our study was dedicated to creating a computer model for prediction of the DDIs mediated by the seven most important P450 cytochromes: CYP1A2, CYP2B6, CYP2C19, CYP2C8, CYP2C9, CYP2D6, and CYP3A4. For the creation of structure-activity relationship (SAR) models that predict metabolism-mediated DDIs for pairs of molecules, we applied the Prediction of Activity Spectra for Substances (PASS) software and Pairs of Substances Multilevel Neighborhoods of Atoms (PoSMNA) descriptors calculated based on structural formulas. About 2500 records on DDIs mediated by these cytochromes were used as a training set. Prediction can be carried out both for known drugs and for new, not-yet-synthesized substances. The average accuracy of the prediction of DDIs mediated by various isoforms of cytochrome P450 estimated by leave-one-out cross-validation (LOO CV) procedures was about 0.92. The SAR models created are publicly available as a web resource and provide predictions of DDIs mediated by the most important cytochromes P450.
    Language English
    Publishing date 2021-04-13
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527217-2
    ISSN 1999-4923
    ISSN 1999-4923
    DOI 10.3390/pharmaceutics13040538
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Extraction of Data on Parent Compounds and Their Metabolites from Texts of Scientific Abstracts.

    Tarasova, Olga A / Biziukova, Nadezhda Yu / Rudik, Anastassia V / Dmitriev, Alexander V / Filimonov, Dmitry A / Poroikov, Vladimir V

    Journal of chemical information and modeling

    2021  Volume 61, Issue 4, Page(s) 1683–1690

    Abstract: The growing amount of experimental data on chemical objects includes properties of small molecules, results of studies of their interaction with human and animal proteins, and methods of synthesis of organic compounds (OCs). The data obtained can be used ...

    Abstract The growing amount of experimental data on chemical objects includes properties of small molecules, results of studies of their interaction with human and animal proteins, and methods of synthesis of organic compounds (OCs). The data obtained can be used to identify the names of OCs automatically, including all possible synonyms and relevant data on the molecular properties and biological activity. Utilization of different synonymic names of chemical compounds allows researchers to increase the completeness of data on their properties available from publications. Enrichment of the data on the names of chemical compounds by information about their possible metabolites can help estimate the biological effects of parent compounds and their metabolites more thoroughly. Therefore, an attempt at automated extraction of the names of parent compounds and their metabolites from the texts is a rather important task. In our study, we aimed at developing a method that provides the extraction of the named entities (NEs) of parent compounds and their metabolites from abstracts of scientific publications. Based on the application of the conditional random fields' algorithm, we extracted the NEs of chemical compounds. We developed a set of rules allowing identification of parent compound NEs and their metabolites in the texts. We evaluated the possibility of extracting the names of potential metabolites based on cosine similarity between strings representing names of parent compounds and all other chemical NEs found in the text. Additionally, we used conditional random fields to fetch the names of parent compounds and their metabolites from the texts based on the corpus of texts labeled manually. Our computational experiments showed that usage of rules in combination with cosine similarity could increase the accuracy of recognition of the names of metabolites compared to the rule-based algorithm and application of a machine-learning algorithm (conditional random fields).
    Language English
    Publishing date 2021-03-16
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 190019-5
    ISSN 1549-960X ; 0095-2338
    ISSN (online) 1549-960X
    ISSN 0095-2338
    DOI 10.1021/acs.jcim.0c01054
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: QNA-Based Prediction of Sites of Metabolism.

    Tarasova, Olga / Rudik, Anastassia / Dmitriev, Alexander / Lagunin, Alexey / Filimonov, Dmitry / Poroikov, Vladimir

    Molecules (Basel, Switzerland)

    2017  Volume 22, Issue 12

    Abstract: Metabolism of xenobiotics ( ... ...

    Abstract Metabolism of xenobiotics (Greek
    MeSH term(s) Bayes Theorem ; Cytochrome P-450 Enzyme System/chemistry ; Cytochrome P-450 Enzyme System/metabolism ; Datasets as Topic ; Humans ; Ligands ; Machine Learning ; Models, Chemical ; Molecular Structure ; Neural Networks (Computer) ; Xenobiotics/chemistry ; Xenobiotics/metabolism
    Chemical Substances Ligands ; Xenobiotics ; Cytochrome P-450 Enzyme System (9035-51-2)
    Language English
    Publishing date 2017-12-01
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules22122123
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Molecular property diagnostic suite for diabetes mellitus (MPDS

    Gaur, Anamika Singh / Nagamani, Selvaraman / Tanneeru, Karunakar / Druzhilovskiy, Dmitry / Rudik, Anastassia / Poroikov, Vladimir / Narahari Sastry, G

    Journal of biomedical informatics

    2018  Volume 85, Page(s) 114–125

    Abstract: Molecular Property Diagnostic Suite - Diabetes Mellitus ( ... ...

    Abstract Molecular Property Diagnostic Suite - Diabetes Mellitus (MPDS
    MeSH term(s) Computational Biology ; Diabetes Mellitus/diagnosis ; Diabetes Mellitus/drug therapy ; Diabetes Mellitus/genetics ; Drug Discovery/statistics & numerical data ; Drug Evaluation, Preclinical ; Drug Repositioning/statistics & numerical data ; Humans ; Hypoglycemic Agents/chemistry ; Hypoglycemic Agents/pharmacology ; Internet ; Molecular Diagnostic Techniques/statistics & numerical data ; Molecular Docking Simulation ; User-Computer Interface
    Chemical Substances Hypoglycemic Agents
    Language English
    Publishing date 2018-08-06
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2057141-0
    ISSN 1532-0480 ; 1532-0464
    ISSN (online) 1532-0480
    ISSN 1532-0464
    DOI 10.1016/j.jbi.2018.08.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Chemo- and bioinformatics resources for in silico drug discovery from medicinal plants beyond their traditional use: a critical review.

    Lagunin, Alexey A / Goel, Rajesh K / Gawande, Dinesh Y / Pahwa, Priynka / Gloriozova, Tatyana A / Dmitriev, Alexander V / Ivanov, Sergey M / Rudik, Anastassia V / Konova, Varvara I / Pogodin, Pavel V / Druzhilovsky, Dmitry S / Poroikov, Vladimir V

    Natural product reports

    2014  Volume 31, Issue 11, Page(s) 1585–1611

    Abstract: In silico approaches have been widely recognised to be useful for drug discovery. Here, we consider the significance of available databases of medicinal plants and chemo- and bioinformatics tools for in silico drug discovery beyond the traditional use of ...

    Abstract In silico approaches have been widely recognised to be useful for drug discovery. Here, we consider the significance of available databases of medicinal plants and chemo- and bioinformatics tools for in silico drug discovery beyond the traditional use of folk medicines. This review contains a practical example of the application of combined chemo- and bioinformatics methods to study pleiotropic therapeutic effects (known and novel) of 50 medicinal plants from Traditional Indian Medicine.
    MeSH term(s) Computational Biology ; Databases, Factual ; Drug Discovery ; Medicine, Traditional ; Molecular Structure ; Plants, Medicinal/chemistry
    Language English
    Publishing date 2014-11
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2002546-4
    ISSN 1460-4752 ; 0265-0568
    ISSN (online) 1460-4752
    ISSN 0265-0568
    DOI 10.1039/c4np00068d
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article: Chemo- and bioinformatics resources for in silico drug discovery from medicinal plants beyond their traditional use: a critical review

    Lagunin, Alexey A. / Goel, Rajesh K. / Gawande, Dinesh Y. / Pahwa, Priynka / Gloriozova, Tatyana A. / Dmitriev, Alexander V. / Ivanov, Sergey M. / Rudik, Anastassia V. / Konova, Varvara I. / Pogodin, Pavel V. / Druzhilovsky, Dmitry S. / Poroikov, Vladimir V.

    Natural product reports. 2014 Oct. 8, v. 31, no. 11

    2014  

    Abstract: Covering: up to 2014 In silico approaches have been widely recognised to be useful for drug discovery. Here, we consider the significance of available databases of medicinal plants and chemo- and bioinformatics tools for in silico drug discovery beyond ... ...

    Abstract Covering: up to 2014 In silico approaches have been widely recognised to be useful for drug discovery. Here, we consider the significance of available databases of medicinal plants and chemo- and bioinformatics tools for in silico drug discovery beyond the traditional use of folk medicines. This review contains a practical example of the application of combined chemo- and bioinformatics methods to study pleiotropic therapeutic effects (known and novel) of 50 medicinal plants from Traditional Indian Medicine.
    Keywords bioinformatics ; computer simulation ; drugs ; therapeutics
    Language English
    Dates of publication 2014-1008
    Size p. 1585-1611.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ZDB-ID 2002546-4
    ISSN 1460-4752 ; 0265-0568
    ISSN (online) 1460-4752
    ISSN 0265-0568
    DOI 10.1039/c4np00068d
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  10. Article ; Online: A community effort in SARS-CoV-2 drug discovery.

    Schimunek, Johannes / Seidl, Philipp / Elez, Katarina / Hempel, Tim / Le, Tuan / Noé, Frank / Olsson, Simon / Raich, Lluís / Winter, Robin / Gokcan, Hatice / Gusev, Filipp / Gutkin, Evgeny M / Isayev, Olexandr / Kurnikova, Maria G / Narangoda, Chamali H / Zubatyuk, Roman / Bosko, Ivan P / Furs, Konstantin V / Karpenko, Anna D /
    Kornoushenko, Yury V / Shuldau, Mikita / Yushkevich, Artsemi / Benabderrahmane, Mohammed B / Bousquet-Melou, Patrick / Bureau, Ronan / Charton, Beatrice / Cirou, Bertrand C / Gil, Gérard / Allen, William J / Sirimulla, Suman / Watowich, Stanley / Antonopoulos, Nick / Epitropakis, Nikolaos / Krasoulis, Agamemnon / Itsikalis, Vassilis / Theodorakis, Stavros / Kozlovskii, Igor / Maliutin, Anton / Medvedev, Alexander / Popov, Petr / Zaretckii, Mark / Eghbal-Zadeh, Hamid / Halmich, Christina / Hochreiter, Sepp / Mayr, Andreas / Ruch, Peter / Widrich, Michael / Berenger, Francois / Kumar, Ashutosh / Yamanishi, Yoshihiro / Zhang, Kam Y J / Bengio, Emmanuel / Bengio, Yoshua / Jain, Moksh J / Korablyov, Maksym / Liu, Cheng-Hao / Marcou, Gilles / Glaab, Enrico / Barnsley, Kelly / Iyengar, Suhasini M / Ondrechen, Mary Jo / Haupt, V Joachim / Kaiser, Florian / Schroeder, Michael / Pugliese, Luisa / Albani, Simone / Athanasiou, Christina / Beccari, Andrea / Carloni, Paolo / D'Arrigo, Giulia / Gianquinto, Eleonora / Goßen, Jonas / Hanke, Anton / Joseph, Benjamin P / Kokh, Daria B / Kovachka, Sandra / Manelfi, Candida / Mukherjee, Goutam / Muñiz-Chicharro, Abraham / Musiani, Francesco / Nunes-Alves, Ariane / Paiardi, Giulia / Rossetti, Giulia / Sadiq, S Kashif / Spyrakis, Francesca / Talarico, Carmine / Tsengenes, Alexandros / Wade, Rebecca C / Copeland, Conner / Gaiser, Jeremiah / Olson, Daniel R / Roy, Amitava / Venkatraman, Vishwesh / Wheeler, Travis J / Arthanari, Haribabu / Blaschitz, Klara / Cespugli, Marco / Durmaz, Vedat / Fackeldey, Konstantin / Fischer, Patrick D / Gorgulla, Christoph / Gruber, Christian / Gruber, Karl / Hetmann, Michael / Kinney, Jamie E / Padmanabha Das, Krishna M / Pandita, Shreya / Singh, Amit / Steinkellner, Georg / Tesseyre, Guilhem / Wagner, Gerhard / Wang, Zi-Fu / Yust, Ryan J / Druzhilovskiy, Dmitry S / Filimonov, Dmitry A / Pogodin, Pavel V / Poroikov, Vladimir / Rudik, Anastassia V / Stolbov, Leonid A / Veselovsky, Alexander V / De Rosa, Maria / De Simone, Giada / Gulotta, Maria R / Lombino, Jessica / Mekni, Nedra / Perricone, Ugo / Casini, Arturo / Embree, Amanda / Gordon, D Benjamin / Lei, David / Pratt, Katelin / Voigt, Christopher A / Chen, Kuang-Yu / Jacob, Yves / Krischuns, Tim / Lafaye, Pierre / Zettor, Agnès / Rodríguez, M Luis / White, Kris M / Fearon, Daren / Von Delft, Frank / Walsh, Martin A / Horvath, Dragos / Brooks, Charles L / Falsafi, Babak / Ford, Bryan / García-Sastre, Adolfo / Yup Lee, Sang / Naffakh, Nadia / Varnek, Alexandre / Klambauer, Günter / Hermans, Thomas M

    Molecular informatics

    2023  Volume 43, Issue 1, Page(s) e202300262

    Abstract: The COVID-19 pandemic continues to pose a substantial threat to human lives and is likely to do so for years to come. Despite the availability of vaccines, searching for efficient small-molecule drugs that are widely available, including in low- and ... ...

    Abstract The COVID-19 pandemic continues to pose a substantial threat to human lives and is likely to do so for years to come. Despite the availability of vaccines, searching for efficient small-molecule drugs that are widely available, including in low- and middle-income countries, is an ongoing challenge. In this work, we report the results of an open science community effort, the "Billion molecules against COVID-19 challenge", to identify small-molecule inhibitors against SARS-CoV-2 or relevant human receptors. Participating teams used a wide variety of computational methods to screen a minimum of 1 billion virtual molecules against 6 protein targets. Overall, 31 teams participated, and they suggested a total of 639,024 molecules, which were subsequently ranked to find 'consensus compounds'. The organizing team coordinated with various contract research organizations (CROs) and collaborating institutions to synthesize and test 878 compounds for biological activity against proteases (Nsp5, Nsp3, TMPRSS2), nucleocapsid N, RdRP (only the Nsp12 domain), and (alpha) spike protein S. Overall, 27 compounds with weak inhibition/binding were experimentally identified by binding-, cleavage-, and/or viral suppression assays and are presented here. Open science approaches such as the one presented here contribute to the knowledge base of future drug discovery efforts in finding better SARS-CoV-2 treatments.
    MeSH term(s) Humans ; SARS-CoV-2 ; COVID-19 ; Pandemics ; Biological Assay ; Drug Discovery
    Language English
    Publishing date 2023-11-14
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2537668-8
    ISSN 1868-1751 ; 1868-1743
    ISSN (online) 1868-1751
    ISSN 1868-1743
    DOI 10.1002/minf.202300262
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top