Page 156 - EJMO-9-1
P. 156

Eurasian Journal of Medicine and
            Oncology
                                                                               Potential of flavonoids against glioblastoma


              Multiple models, including iLOGP, XLOGP3, WLOGP,   Cheminformatics tool “Calculation of molecular properties
            MLOGP, and SILICOS-IT, assessed lipophilicity. The   and bioactivity score” (molinspiration.com), which is
            consensus log P  was determined to predict membrane   renowned for its ability to calculate molecular properties
                         o/w
                                                                                  30
            permeability and interaction potential. Water solubility was   and bioactivity scores.  This comprehensive analysis
            calculated using ESOL, Ali, and SILICOS-IT models, with   focused on various key biological targets, including G
            log S values guiding the prediction of oral bioavailability.  protein-coupled receptors (GPCRs), ligand modulators for
              Medicinal chemistry filters, such as PAINS and Brenk,   ion channels, nuclear receptor ligands, kinase inhibitors,
            were applied to identify structural alerts, while synthetic   protease inhibitors, and enzyme inhibitors.
            accessibility  scores predicted  the ease  of compound   To perform this assessment, the phytochemicals, saved
            synthesis. Drug likeness was further evaluated using LRF,   in  MOL  format,  were  submitted  as  input  files  into  the
            Ghose, Veber, and Egan criteria, alongside bioavailability   Molinspiration platform. This facilitated the computation
            scores. Skin permeability coefficients (log k ) were also   of bioactivity scores, allowing us to gain insights into the
                                                p
            calculated to assess absorption potential.         potential efficacy and interaction of these compounds with
              This approach not only enhanced our understanding   the targeted biological pathways. The results from this
            of the drug-like behavior of the phytochemicals but also   evaluation are critical for understanding the therapeutic
            identified any possible limitations that could hinder their   potential of the phytochemicals and guiding further
                                                               research into their pharmacological applications.
            development as therapeutic agents. By ensuring that the
            compounds met these stringent criteria, we paved the way   2.4.10. DFT calculations
            for their potential progression to the next phases of drug
            development, reducing the likelihood of costly failures at   To explore the molecular characteristics of the isolated
            later stages.                                      phytochemicals, we employed DFT using the B3LYP
                                                               method in conjunction with a 3-21G basis set. This
            2.4.8. Toxicity assessment                         computational approach allowed us to determine the
                                                               optimized molecular conformations of both compounds in
            Toxicity assessment is an essential stage in effective drug
            development, as it evaluates the potential harmful effects of   their energy-minimized ground states. The visualizations
                                                               of these optimized structures were carried out using
            compounds on living organisms.  In our current research,   GaussView 5.0.8 software and the Gaussian 09W program. 30
                                      27
            we undertook a comprehensive toxicity evaluation using
            two advanced tools: the Pharmacokinetics and Toxicity   In addition to structural optimization, we investigated
            Prediction (PkCSM; uq.edu.au) online server and StopTox   the frontier molecular orbitals (FMO), molecular
            (unc.edu).                                         electrostatic potential (MEP), and various chemical
                                                               reactivity descriptors, as established by Koopman’s
              The PkCSM online server provides a robust platform      31
            for assessing toxicity through various parameters presented   theorem.  The FMO cubes were further visualized using
                                                               VESTA (version 3), enhancing the computational clarity
            in both binary yes/no formats and specified units.    of our findings. This multifaceted approach provides
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            This dual approach enables a nuanced understanding   valuable insights into the electronic properties of the
            of  the  toxicological  profile  of  the  compounds,  allowing   phytochemicals, contributing to a deeper understanding
            researchers to identify any concerning attributes early in   of their potential biological activities and interactions.
            the development process.

              In addition, we employed StopTox, which incorporates   3. Results
            a comprehensive “6-pack” assessment. This tool evaluates   3.1. In vitro results
            several critical toxicity endpoints, including acute oral
            toxicity, acute dermal toxicity, acute inhalation toxicity,   The anticancer activity of compounds isolated from
            irritation (skin and eye), skin corrosion, and skin   P. chinensis was systematically evaluated using the
            sensitization.  By utilizing these sophisticated tools, we   glioblastoma (U87) cell line, focusing on varying
                      29
            aimed to ensure that any potential drug candidates exhibit   concentrations (25, 50, and 75  µg/mL) and time points
            acceptable safety profiles, thereby mitigating risks associated   (24 and 48 h). The results, summarized in Table 1, reveal
            with their development and potential clinical application.  a compelling dose- and time-dependent inhibition of cell
                                                               viability by both compounds.
            2.4.9. Bioactivity evaluation                        At a concentration of 25 µg/mL, Compound 1 exhibited

            The bioactivity of the isolated phytochemicals was   a modest reduction in cell viability after 24 h of treatment,
            thoroughly  evaluated  using  the  Molinspiration  with an inhibition rate of 10.11%. Notably, this inhibitory


            Volume 9 Issue 1 (2025)                        148                              doi: 10.36922/ejmo.5768
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