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  1. Article: Design of new molecules against cervical cancer using DFT, theoretical spectroscopy, 2D/3D-QSAR, molecular docking, pharmacophore and ADMET investigations.

    El Rhabori, Said / El Aissouq, Abdellah / Daoui, Ossama / Elkhattabi, Souad / Chtita, Samir / Khalil, Fouad

    Heliyon

    2024  Volume 10, Issue 3, Page(s) e24551

    Abstract: Cervical cancer is a major health problem of women. Hormone therapy, via aromatase inhibition, has been proposed as a promising way of blocking estrogen production as well as treating the progression of estrogen-dependent cancer. To overcome the ... ...

    Abstract Cervical cancer is a major health problem of women. Hormone therapy, via aromatase inhibition, has been proposed as a promising way of blocking estrogen production as well as treating the progression of estrogen-dependent cancer. To overcome the challenging complexities of costly drug design, in-silico strategy, integrating Structure-Based Drug Design (SBDD) and Ligand-Based Drug Design (LBDD), was applied to large representative databases of 39 quinazoline and thioquinazolinone compound derivatives. Quantum chemical and physicochemical descriptors have been investigated using density functional theory (DFT) and MM2 force fields, respectively, to develop 2D-QSAR models, while CoMSIA and CoMFA descriptors were used to build 3D-QSAR models. The robustness and predictive power of the reliable models were verified, via several validation methods, leading to the design of 6 new drug-candidates. Afterwards, 2 ligands were carefully selected using virtual screening methods, taking into account the applicability domain, synthetic accessibility, and Lipinski's criteria. Molecular docking and pharmacophore modelling studies were performed to examine potential interactions with aromatase (PDB ID: 3EQM). Finally, the ADMET properties were investigated in order to select potential drug-candidates against cervical cancer for experimental in vitro and in vivo testing.
    Language English
    Publishing date 2024-01-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e24551
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Integrative Approach for Designing Novel Triazole Derivatives as α-Glucosidase Inhibitors: QSAR, Molecular Docking, ADMET, and Molecular Dynamics Investigations.

    Abchir, Oussama / Khedraoui, Meriem / Nour, Hassan / Yamari, Imane / Errougui, Abdelkbir / Samadi, Abdelouahid / Chtita, Samir

    Pharmaceuticals (Basel, Switzerland)

    2024  Volume 17, Issue 2

    Abstract: In response to the increasing prevalence of diabetes mellitus and the limitations associated with the current treatments, there is a growing need to develop novel medications for this disease. This study is focused on creating new compounds that exhibit ... ...

    Abstract In response to the increasing prevalence of diabetes mellitus and the limitations associated with the current treatments, there is a growing need to develop novel medications for this disease. This study is focused on creating new compounds that exhibit a strong inhibition of alpha-glucosidase, which is a pivotal enzyme in diabetes control. A set of 33 triazole derivatives underwent an extensive QSAR analysis, aiming to identify the key factors influencing their inhibitory activity against α-glucosidase. Using the multiple linear regression (MLR) model, seven promising compounds were designed as potential drugs. Molecular docking and dynamics simulations were employed to shed light on the mode of interaction between the ligands and the target, and the stability of the obtained complexes. Furthermore, the pharmacokinetic properties of the designed compounds were assessed to predict their behavior in the human body. The binding free energy was also calculated using MMGBSA method and revealed favorable thermodynamic properties. The results highlighted three novel compounds with high biological activity, strong binding affinity to the target enzyme, and suitability for oral administration. These results offer interesting prospects for the development of effective and well-tolerated medications against diabetes mellitus.
    Language English
    Publishing date 2024-02-19
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2193542-7
    ISSN 1424-8247
    ISSN 1424-8247
    DOI 10.3390/ph17020261
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: A comprehensive computational study to explore promising natural bioactive compounds targeting glycosyltransferase MurG in Escherichia coli for potential drug development.

    Shtaiwi, Amneh / Khan, Shafi Ullah / Khedraoui, Meriem / Alaraj, Mohd / Samadi, Abdelouahid / Chtita, Samir

    Scientific reports

    2024  Volume 14, Issue 1, Page(s) 7098

    Abstract: Peptidoglycan is a carbohydrate with a cross-linked structure that protects the cytoplasmic membrane of bacterial cells from damage. The mechanism of peptidoglycan biosynthesis involves the main synthesizing enzyme glycosyltransferase MurG, which is ... ...

    Abstract Peptidoglycan is a carbohydrate with a cross-linked structure that protects the cytoplasmic membrane of bacterial cells from damage. The mechanism of peptidoglycan biosynthesis involves the main synthesizing enzyme glycosyltransferase MurG, which is known as a potential target for antibiotic therapy. Many MurG inhibitors have been recognized as MurG targets, but high toxicity and drug-resistant Escherichia coli strains remain the most important problems for further development. In addition, the discovery of selective MurG inhibitors has been limited to the synthesis of peptidoglycan-mimicking compounds. The present study employed drug discovery, such as virtual screening using molecular docking, drug likeness ADMET proprieties predictions, and molecular dynamics (MD) simulation, to identify potential natural products (NPs) for Escherichia coli. We conducted a screening of 30,926 NPs from the NPASS database. Subsequently, 20 of these compounds successfully passed the potency, pharmacokinetic, ADMET screening assays, and their validation was further confirmed through molecular docking. The best three hits and the standard were chosen for further MD simulations up to 400 ns and energy calculations to investigate the stability of the NPs-MurG complexes. The analyses of MD simulations and total binding energies suggested the higher stability of NPC272174. The potential compounds can be further explored in vivo and in vitro for promising novel antibacterial drug discovery.
    MeSH term(s) Glycosyltransferases/metabolism ; Escherichia coli/metabolism ; Bacterial Outer Membrane Proteins/metabolism ; Molecular Docking Simulation ; Peptidoglycan ; Anti-Bacterial Agents/pharmacology ; Molecular Dynamics Simulation ; Drug Development
    Chemical Substances Glycosyltransferases (EC 2.4.-) ; Bacterial Outer Membrane Proteins ; Peptidoglycan ; Anti-Bacterial Agents
    Language English
    Publishing date 2024-03-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-024-57702-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Rational identification of small molecules derived from 9,10-dihydrophenanthrene as potential inhibitors of 3CL

    Daoui, Ossama / Elkhattabi, Souad / Chtita, Samir

    Structural chemistry

    2022  Volume 33, Issue 5, Page(s) 1667–1690

    Abstract: Small molecules such as 9,10-dihydrophenanthrene derivatives have remarkable activity toward inhibition of SARS-CoV-2 3CL: Supplementary information: The online version contains supplementary material available at 10.1007/s11224-022-02004-z. ...

    Abstract Small molecules such as 9,10-dihydrophenanthrene derivatives have remarkable activity toward inhibition of SARS-CoV-2 3CL
    Supplementary information: The online version contains supplementary material available at 10.1007/s11224-022-02004-z.
    Language English
    Publishing date 2022-07-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2018832-8
    ISSN 1572-9001 ; 1040-0400
    ISSN (online) 1572-9001
    ISSN 1040-0400
    DOI 10.1007/s11224-022-02004-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Repositioning Cannabinoids and Terpenes as Novel EGFR-TKIs Candidates for Targeted Therapy Against Cancer: A virtual screening model using CADD and biophysical simulations.

    Daoui, Ossama / Mali, Suraj N / Elkhattabi, Kaouakeb / Elkhattabi, Souad / Chtita, Samir

    Heliyon

    2023  Volume 9, Issue 4, Page(s) e15545

    Abstract: This study examines the potential ... ...

    Abstract This study examines the potential of
    Language English
    Publishing date 2023-04-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2023.e15545
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Design, 3D-QSAR, molecular docking, ADMET, molecular dynamics and MM-PBSA simulations for new anti-breast cancer agents

    Said El Rhabori / Marwa Alaqarbeh / Abdellah El Aissouq / Mohammed Bouachrine / Samir Chtita / Fouad Khalil

    Chemical Physics Impact, Vol 8, Iss , Pp 100455- (2024)

    2024  

    Abstract: Breast cancer is the most frequent form of malignant tumor in women, and represents a major public health problem due to its high mortality rate. Although a multitude of therapeutic options exist for control of this disease, the emergence of resistance ... ...

    Abstract Breast cancer is the most frequent form of malignant tumor in women, and represents a major public health problem due to its high mortality rate. Although a multitude of therapeutic options exist for control of this disease, the emergence of resistance to current pharmaceutical treatments underscores the urgency of developing new anti- breast cancer drugs, with a focus on reducing the adverse effects associated with current therapeutic agents. The present study concerns a new series of (23) compounds based on 1,4-quinone and quinoline derivatives to design candidate drugs against breast cancer. For this purpose, integrated computational techniques were applied, including 3D-QSAR, molecular docking and molecular dynamics simulations (MD). CoMFA and CoMSIA were used to build a robust and highly reliable 3D-QSAR models. To validate the model's predictive capabilities, an external validation was carried out. The results of the best model (CoMSIA/SEA) revealed that electrostatic, steric and hydrogen bond acceptor fields had a significant effect on the anti-breast cancer activity of molecules studied. In addition, evaluation of ADMET properties determined whether these newly designed ligands were likely to be selected as drug-candidates. To confirm the binding stability of the selected ligands to aromatase (3S7S) and validate the molecular docking results, molecular dynamics simulations lasting 100 nanoseconds were performed by calculating RMSD, RMSF, RoG, H-bond, SASA and MM-PBSA parameters. As a result, only one designed compound (ligand 5) emerged as the most promising drug candidate for experimental in vitro and in vivo testing, due to its potential inhibition of breast cancer.
    Keywords Breast cancer ; Qsar ; Molecular docking ; Molecular Dynamic ; ADMET ; Physics ; QC1-999 ; Chemistry ; QD1-999
    Subject code 540
    Language English
    Publishing date 2024-06-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Insights into the inhibitory potential of novel hydrazinyl thiazole-linked indenoquinoxaline against alpha-amylase: a comprehensive QSAR, pharmacokinetic, and molecular modeling study.

    Abchir, Oussama / Yamari, Imane / Shtaiwi, Amneh Mohammad / Nour, Hassan / Kouali, Mhammed El / Talbi, Mohammed / Errougui, Abdelkbir / Chtita, Samir

    Journal of biomolecular structure & dynamics

    2024  , Page(s) 1–18

    Abstract: The rising prevalence of diabetes necessitates the development of novel drugs, especially given the side effects associated with current medications like Acarbose and Voglibose. A series of 36 Hydrazinyl thiazole-linked indenoquinoxaline derivatives with ...

    Abstract The rising prevalence of diabetes necessitates the development of novel drugs, especially given the side effects associated with current medications like Acarbose and Voglibose. A series of 36 Hydrazinyl thiazole-linked indenoquinoxaline derivatives with notable activity against alpha-amylase were studied. To create a molecular model predicting alpha-amylase activity, a QSAR study was performed on these compounds. Molecular descriptors were calculated using Chem3D and Gaussian software and then correlated with their IC
    Language English
    Publishing date 2024-02-02
    Publishing country England
    Document type Journal Article
    ZDB-ID 49157-3
    ISSN 1538-0254 ; 0739-1102
    ISSN (online) 1538-0254
    ISSN 0739-1102
    DOI 10.1080/07391102.2024.2310778
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Computer-Aided Strategy on 5-(Substituted benzylidene) Thiazolidine-2,4-Diones to Develop New and Potent PTP1B Inhibitors: QSAR Modeling, Molecular Docking, Molecular Dynamics, PASS Predictions, and DFT Investigations.

    Derki, Nour-El Houda / Kerassa, Aicha / Belaidi, Salah / Derki, Maroua / Yamari, Imane / Samadi, Abdelouahid / Chtita, Samir

    Molecules (Basel, Switzerland)

    2024  Volume 29, Issue 4

    Abstract: A set of 5-(substituted benzylidene) thiazolidine-2,4-dione derivatives was explored to study the main structural requirement for the design of protein tyrosine phosphatase 1B (PTP1B) inhibitors. Utilizing multiple linear regression (MLR) analysis, we ... ...

    Abstract A set of 5-(substituted benzylidene) thiazolidine-2,4-dione derivatives was explored to study the main structural requirement for the design of protein tyrosine phosphatase 1B (PTP1B) inhibitors. Utilizing multiple linear regression (MLR) analysis, we constructed a robust quantitative structure-activity relationship (QSAR) model to predict inhibitory activity, resulting in a noteworthy correlation coefficient (R
    MeSH term(s) Humans ; Molecular Docking Simulation ; Quantitative Structure-Activity Relationship ; Thiazolidines/pharmacology ; Thiazolidines/chemistry ; Reproducibility of Results ; Molecular Dynamics Simulation ; Enzyme Inhibitors/chemistry ; Diabetes Mellitus/drug therapy
    Chemical Substances Thiazolidines ; Enzyme Inhibitors
    Language English
    Publishing date 2024-02-10
    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/molecules29040822
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Identification of novel curcumin derivatives against pancreatic cancer: a comprehensive approach integrating 3D-QSAR pharmacophore modeling, virtual screening, and molecular dynamics simulations.

    Chahbaoui, Narimene / Khamouli, Saida / Alaqarbeh, Marwa / Belaidi, Salah / Sinha, Leena / Chtita, Samir / Bouachrine, Mohammed

    Journal of biomolecular structure & dynamics

    2023  , Page(s) 1–19

    Abstract: Pancreatic cancer, known as the "silent killer," poses a daunting challenge in cancer therapy. The dysregulation of the PI3Kα signaling pathway in pancreatic cancer has attracted considerable interest as a promising target for therapeutic intervention. ... ...

    Abstract Pancreatic cancer, known as the "silent killer," poses a daunting challenge in cancer therapy. The dysregulation of the PI3Kα signaling pathway in pancreatic cancer has attracted considerable interest as a promising target for therapeutic intervention. In this regard, the use of curcumin derivatives as inhibitors of PI3Kα has emerged, providing a novel and promising avenue for developing effective treatments for this devastating disease. Computational approaches were employed to explore this potential and investigate 58 curcumin derivatives with cytotoxic activity against the Panc-1 cell line. Our approach involved ligand-based pharmacophore modeling and atom-based 3D-QSAR analysis. The resulting QSAR model derived from the best-fitted pharmacophore hypothesis (AAHRR_1) demonstrated remarkable performance with high correlation coefficients (R
    Language English
    Publishing date 2023-10-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 49157-3
    ISSN 1538-0254 ; 0739-1102
    ISSN (online) 1538-0254
    ISSN 0739-1102
    DOI 10.1080/07391102.2023.2266502
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Ligand-Based Design of Novel Quinoline Derivatives as Potential Anticancer Agents: An In-Silico Virtual Screening Approach.

    Mkhayar, Khaoula / Daoui, Ossama / Haloui, Rachid / Elkhattabi, Kaouakeb / Elabbouchi, Abdelmoula / Chtita, Samir / Samadi, Abdelouahid / Elkhattabi, Souad

    Molecules (Basel, Switzerland)

    2024  Volume 29, Issue 2

    Abstract: In this study, using the Comparative Molecular Field Analysis (CoMFA) approach, the structure-activity relationship of 33 small quinoline-based compounds with biological anti-gastric cancer activity in vitro was analyzed in 3D space. Once the 3D ... ...

    Abstract In this study, using the Comparative Molecular Field Analysis (CoMFA) approach, the structure-activity relationship of 33 small quinoline-based compounds with biological anti-gastric cancer activity in vitro was analyzed in 3D space. Once the 3D geometric and energy structure of the target chemical library has been optimized and their steric and electrostatic molecular field descriptions computed, the ideal 3D-QSAR model is generated and matched using the Partial Least Squares regression (PLS) algorithm. The accuracy, statistical precision, and predictive power of the developed 3D-QSAR model were confirmed by a range of internal and external validations, which were interpreted by robust correlation coefficients (RTrain2=0.931; Qcv2=0.625; RTest2=0.875). After carefully analyzing the contour maps produced by the trained 3D-QSAR model, it was discovered that certain structural characteristics are beneficial for enhancing the anti-gastric cancer properties of Quinoline derivatives. Based on this information, a total of five new quinoline compounds were developed, with their biological activity improved and their drug-like bioavailability measured using POM calculations. To further explore the potential of these compounds, molecular docking and molecular dynamics simulations were performed in an aqueous environment for 100 nanoseconds, specifically targeting serine/threonine protein kinase. Overall, the new findings of this study can serve as a starting point for further experiments with a view to the identification and design of a potential next-generation drug for target therapy against cancer.
    MeSH term(s) Humans ; Ligands ; Molecular Docking Simulation ; Antineoplastic Agents/pharmacology ; Quinolines/pharmacology ; Quantitative Structure-Activity Relationship ; Stomach Neoplasms/drug therapy
    Chemical Substances Ligands ; Antineoplastic Agents ; Quinolines
    Language English
    Publishing date 2024-01-15
    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/molecules29020426
    Database MEDical Literature Analysis and Retrieval System OnLINE

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