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  1. Article ; Online: Screening the possible anti-cancer constituents of Hibiscus rosa-sinensis flower to address mammalian target of rapamycin: an in silico molecular docking, HYDE scoring, dynamic studies, and pharmacokinetic prediction.

    Rasul, Hezha O / Aziz, Bakhtyar K / Ghafour, Dlzar D / Kivrak, Arif

    Molecular diversity

    2022  Volume 27, Issue 5, Page(s) 2273–2296

    Abstract: One of the most common malignancies diagnosed and the leading cause of death for cancer-stricken women globally is breast cancer. The molecular subtype affects therapy options because it is a complex disorder with multiple subtypes. By concentrating on ... ...

    Abstract One of the most common malignancies diagnosed and the leading cause of death for cancer-stricken women globally is breast cancer. The molecular subtype affects therapy options because it is a complex disorder with multiple subtypes. By concentrating on receptor activation, mTOR (mammalian target of rapamycin) can be employed as a therapeutic target. The goal of this work was to screen a number of inhibitors produced from Hibiscus rosa-sinensis for possible target to inhibit the mTOR and to determine which has the greatest affinity for the receptor. Primarily, the ionization states of the chosen compounds were predicted using the ChemAxon web platform, and their pKa values were estimated. Given the significance of interactions between proteins in the development of drugs, structure-based virtual screening was done using AutoDock Vina. Approximately 120 Hibiscus components and ten approved anti-cancer drugs, including the mTOR inhibitor everolimus, were used in the comparative analysis. By using Lipinski's rule of five to the chosen compounds, the ADMET profile and drug-likeness characteristics were further examined to assess the anti-breast cancer activity. The compounds with the highest ranked binding poses were loaded using the SeeSAR tool and the HYDE scoring to give interactive, desolvation, and visual ΔG estimation for ligand binding affinity assessment. Following, the prospective candidates underwent three replicas of 100 ns long molecular dynamics simulations, preceded with MM-GBSA binding free energy calculation. The stability of the protein-ligand complex was determined using root mean square deviation (RMSD), root mean square fluctuation (RMSF), and protein-ligand interactions. The results demonstrated that the best mTOR binding affinities were found for stigmastadienol (107), lupeol (66), and taraxasterol acetate (111), which all performed well in comparison to the control compounds. Thus, bioactive compounds isolated from Hibiscus rosa-sinensis could serve as lead molecules for the creation of potent and effective mTOR inhibitors for the breast cancer therapy.
    MeSH term(s) Female ; Humans ; Molecular Docking Simulation ; Sirolimus/analysis ; Hibiscus/chemistry ; Rosa ; Ligands ; Molecular Dynamics Simulation ; Breast Neoplasms ; Flowers/chemistry ; TOR Serine-Threonine Kinases
    Chemical Substances Sirolimus (W36ZG6FT64) ; Ligands ; TOR Serine-Threonine Kinases (EC 2.7.11.1)
    Language English
    Publishing date 2022-11-01
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1376507-3
    ISSN 1573-501X ; 1381-1991
    ISSN (online) 1573-501X
    ISSN 1381-1991
    DOI 10.1007/s11030-022-10556-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Correction to: In silico molecular docking and dynamic simulation of eugenol compounds against breast cancer.

    Rasul, Hezha O / Aziz, Bakhtyar K / Ghafour, Dlzar D / Kivrak, Arif

    Journal of molecular modeling

    2022  Volume 28, Issue 4, Page(s) 78

    Language English
    Publishing date 2022-03-05
    Publishing country Germany
    Document type Published Erratum
    ZDB-ID 1284729-X
    ISSN 0948-5023 ; 1610-2940
    ISSN (online) 0948-5023
    ISSN 1610-2940
    DOI 10.1007/s00894-022-05068-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Discovery of potential mTOR inhibitors from Cichorium intybus to find new candidate drugs targeting the pathological protein related to the breast cancer: an integrated computational approach.

    Rasul, Hezha O / Aziz, Bakhtyar K / Ghafour, Dlzar D / Kivrak, Arif

    Molecular diversity

    2022  Volume 27, Issue 3, Page(s) 1141–1162

    Abstract: Breast cancer is the most common malignancy among women. It is a complex condition with many subtypes based on the hormone receptor. The mammalian target of the rapamycin (mTOR) pathway regulates cell survival, metabolism, growth, and protein synthesis ... ...

    Abstract Breast cancer is the most common malignancy among women. It is a complex condition with many subtypes based on the hormone receptor. The mammalian target of the rapamycin (mTOR) pathway regulates cell survival, metabolism, growth, and protein synthesis in response to upstream signals in both normal physiological and pathological situations, primarily in cancer. The objective of this study was to screen for a potential target to inhibit the mTOR using a variety of inhibitors derived from Cichorium intybus and to identify the one with the highest binding affinity for the receptor protein. Initially, AutoDock Vina was used to perform structure-based virtual screening, as protein-like interactions are critical in drug development. For the comparative analysis, 110 components of Cichorium intybus were employed and ten FDA-approved anticancer medicines, including everolimus, an mTOR inhibitor. Further, the drug-likeness and ADMET properties were investigated to evaluate the anti-breast cancer activity by applying Lipinski's rule of five to the selected molecules. The promising candidates were then subjected to three replica molecular dynamics simulations run for 100 ns, followed by binding free energy estimation using MM-GBSA. The data were analyzed using root-mean-square deviation (RMSD), root-mean-square fluctuation (RMSF), and protein-ligand interactions to determine the stability of the protein-ligand complex. Based on the results, taraxerone (98) revealed optimum binding affinities with mTOR, followed by stigmasterol (110) and rutin (104), which compared favorably to the control compounds. Subsequently, bioactive compounds derived from Cichorium intybus may serve as lead molecules for developing potent and effective mTOR inhibitors to treat breast cancer.
    MeSH term(s) Female ; Humans ; Sirolimus/therapeutic use ; Cichorium intybus ; MTOR Inhibitors ; Molecular Docking Simulation ; Ligands ; Molecular Dynamics Simulation ; Breast Neoplasms/drug therapy ; TOR Serine-Threonine Kinases
    Chemical Substances Sirolimus (W36ZG6FT64) ; MTOR Inhibitors ; Ligands ; TOR Serine-Threonine Kinases (EC 2.7.11.1)
    Language English
    Publishing date 2022-06-23
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1376507-3
    ISSN 1573-501X ; 1381-1991
    ISSN (online) 1573-501X
    ISSN 1381-1991
    DOI 10.1007/s11030-022-10475-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: In silico molecular docking and dynamic simulation of eugenol compounds against breast cancer.

    Rasul, Hezha O / Aziz, Bakhtyar K / Ghafour, Dlzar D / Kivrak, Arif

    Journal of molecular modeling

    2021  Volume 28, Issue 1, Page(s) 17

    Abstract: Breast cancer is one of the most severe problems, and it is the primary cause of cancer-related death in females worldwide. The adverse effects and therapeutic resistance development are among the most potent clinical issues for potent medications for ... ...

    Abstract Breast cancer is one of the most severe problems, and it is the primary cause of cancer-related death in females worldwide. The adverse effects and therapeutic resistance development are among the most potent clinical issues for potent medications for breast cancer treatment. The eugenol molecules have a significant affinity for breast cancer receptors. The aim of the study has been on the eugenol compounds, which has potent actions on Erα, PR, EGFR, CDK2, mTOR, ERBB2, c-Src, HSP90, and chemokines receptors inhibition. Initially, the drug-likeness property was examined to evaluate the anti-breast cancer activity by applying Lipinski's rule of five on 120 eugenol molecules. Further, structure-based virtual screening was performed via molecular docking, as protein-like interactions play a vital role in drug development. The 3D structure of the receptors has been acquired from the protein data bank and is docked with 87 3D PubChem and ZINC structures of eugenol compounds, and five FDA-approved anti-cancer drugs using AutoDock Vina. Then, the compounds were subjected to three replica molecular dynamic simulations run of 100 ns per system. The results were evaluated using root mean square deviation (RMSD), root mean square fluctuation (RMSF), and protein-ligand interactions to indicate protein-ligand complex stability. The results confirm that Eugenol cinnamaldehyde has the best docking score for breast cancer, followed by Aspirin eugenol ester and 4-Allyl-2-methoxyphenyl cinnamate. From the results obtained from in silico studies, we propose that the selected eugenols can be further investigated and evaluated for further lead optimization and drug development.
    MeSH term(s) Antineoplastic Agents/chemistry ; Antineoplastic Agents/pharmacology ; Binding Sites ; Breast Neoplasms ; Cell Line, Tumor ; Eugenol/chemistry ; Eugenol/pharmacology ; Female ; Humans ; Ligands ; Molecular Docking Simulation ; Molecular Dynamics Simulation ; Molecular Structure ; Protein Binding ; Structure-Activity Relationship
    Chemical Substances Antineoplastic Agents ; Ligands ; Eugenol (3T8H1794QW)
    Language English
    Publishing date 2021-12-28
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1284729-X
    ISSN 0948-5023 ; 1610-2940
    ISSN (online) 0948-5023
    ISSN 1610-2940
    DOI 10.1007/s00894-021-05010-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Searching possible SARS-CoV-2 main protease inhibitors in constituents from herbal medicines using

    Rasul, Hezha O / Thomas, Noel Vinay / Ghafour, Dlzar D / Aziz, Bakhtyar K / Salgado M, Guillermo / Mendoza-Huizar, L H / Candia, Lorena Gerli

    Journal of biomolecular structure & dynamics

    2023  Volume 42, Issue 8, Page(s) 4234–4248

    Abstract: The largest threat to civilization since the Second World War is the spread of the new coronavirus disease (COVID-19). Therefore, there is an urgent need for innovative therapeutic medicines to treat COVID-19. Reusing bio-actives is a workable and ... ...

    Abstract The largest threat to civilization since the Second World War is the spread of the new coronavirus disease (COVID-19). Therefore, there is an urgent need for innovative therapeutic medicines to treat COVID-19. Reusing bio-actives is a workable and efficient strategy in the battle against new epidemics because the process of developing new drugs is time-consuming. This research aimed to identify which herbal remedies had the highest affinity for the receptor and assess a variety of them for potential targets to suppress the SARS-CoV-2 M
    MeSH term(s) Molecular Docking Simulation ; SARS-CoV-2/drug effects ; SARS-CoV-2/enzymology ; Molecular Dynamics Simulation ; Humans ; Coronavirus 3C Proteases/antagonists & inhibitors ; Coronavirus 3C Proteases/chemistry ; Coronavirus 3C Proteases/metabolism ; Protease Inhibitors/chemistry ; Protease Inhibitors/pharmacology ; Antiviral Agents/chemistry ; Antiviral Agents/pharmacology ; COVID-19 Drug Treatment ; Plants, Medicinal/chemistry ; Herbal Medicine ; Protein Binding ; COVID-19/virology ; Computer Simulation ; Binding Sites ; Pentacyclic Triterpenes/chemistry ; Pentacyclic Triterpenes/pharmacology ; Lupanes
    Chemical Substances Coronavirus 3C Proteases (EC 3.4.22.28) ; Protease Inhibitors ; Antiviral Agents ; Pentacyclic Triterpenes ; lupeol (O268W13H3O) ; Lupanes
    Language English
    Publishing date 2023-06-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 49157-3
    ISSN 1538-0254 ; 0739-1102
    ISSN (online) 1538-0254
    ISSN 0739-1102
    DOI 10.1080/07391102.2023.2220040
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Identification of natural diterpenes isolated from Azorella species targeting dispersin B using in silico approaches.

    Rasul, Hezha O / Sabir, Dana Khdr / Aziz, Bakhtyar K / Guillermo Salgado, M / Mendoza-Huizar, L H / Belhassan, Assia / Candia, Lorena Gerli / Villada, Wilson Cardona / Thomas, Noel Vinay / Ghafour, Dlzar D

    Journal of molecular modeling

    2023  Volume 29, Issue 6, Page(s) 182

    Abstract: Context: A bacterial biofilm is a cluster of bacterial cells embedded in a self-produced matrix of extracellular polymeric substances such as DNA, proteins, and polysaccharides. Several diseases have been reported to cause by bacterial biofilms, and ... ...

    Abstract Context: A bacterial biofilm is a cluster of bacterial cells embedded in a self-produced matrix of extracellular polymeric substances such as DNA, proteins, and polysaccharides. Several diseases have been reported to cause by bacterial biofilms, and difficulties in treating these infections are of concern. This work aimed to identify the inhibitor with the highest binding affinity for the receptor protein by screening various inhibitors obtained from Azorella species for a potential target to inhibit dispersin B. This work shows that azorellolide has the highest binding affinity (- 8.2 kcal/mol) among the compounds tested, followed by dyhydroazorellolide, mulinone A, and 7-acetoxy-mulin-9,12-diene which all had a binding affinity of - 8.0 kcal/mol. To the best of our knowledge, this is the first study to evaluate and contrast several diterpene compounds as antibacterial biofilm chemicals.
    Methods: Here, molecular modelling techniques tested 49 diterpene compounds of Azorella and six FDA-approved antibiotics medicines for antibiofilm activity. Since protein-like interactions are crucial in drug discovery, AutoDock Vina was initially employed to carry out structure-based virtual screening. The drug-likeness and ADMET properties of the chosen compounds were examined to assess the antibiofilm activity further. Lipinski's rule of five was then applied to determine the antibiofilm activity. Then, molecular electrostatic potential was used to determine the relative polarity of a molecule using the Gaussian 09 package and GaussView 5.08. Following three replica molecular dynamic simulations (using the Schrodinger program, Desmond 2019-4 package) that each lasted 100 ns on the promising candidates, binding free energy was estimated using MM-GBSA. Structural visualisation was used to test the binding affinity of each compound to the crystal structure of dispersin B protein (PDB: 1YHT), a well-known antibiofilm compound.
    MeSH term(s) Molecular Docking Simulation ; Apiaceae/chemistry ; Molecular Dynamics Simulation ; Anti-Bacterial Agents/pharmacology ; Diterpenes/pharmacology ; Diterpenes/chemistry
    Chemical Substances Anti-Bacterial Agents ; Diterpenes
    Language English
    Publishing date 2023-05-20
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1284729-X
    ISSN 0948-5023 ; 1610-2940
    ISSN (online) 0948-5023
    ISSN 1610-2940
    DOI 10.1007/s00894-023-05592-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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