In Silico Study of the Interaction and Binding of Tubulin Heterodimer with the Modified Podophyllotoxin Derivatives and Physicochemical Prediction

Authors

  • Suchaya Pongsai ภาควิชาเคมี คณะวิทยาศาสตร์ มหาวิทยาลัยบูรพา http://orcid,org/0000-0003-3660-8096
  • Duangthida Panmekha ภาควิชาเคมี คณะวิทยาศาสตร์ มหาวิทยาลัยบูรพา

Abstract

This research had studied the interaction and binding between protein target and anticancer drug derivatives, which are tubulin heterodimer and new podophyllotoxin derivatives (80 ligands). These new derivatives were modified by replacing the functional groups at R1 or R2 positions, by using molecular modeling and molecular docking methods. Physicochemical and ADMET predictions were also considered in order to evaluate the good druglikeness properties for these new podophyllotoxin derivatives, having the most favorable binding with protein target, and having significantly the lowest hepatotoxicity compared to a drug podophyllotoxin. From the calculated results, the new podophyllotoxin derivatives were chosen of 9 ligands (E-binding and Tox_P values), i.e., N11R2 (-7.64 kcal/mol and 1.1), N20R2 (-7.59 kcal/mol and -0.7), N26R2 (-7.48 kcal/mol and 4.4), N25R2 (-7.44 kcal/mol and 4.1), N13R2 (-7.43 kcal/mol and 2.8), N17R2 ( -7.07 kcal/mol and 4.4), N16R1 (-7.04 kcal/mol and 3.2), N9R2 (-7.04 kcal/mol and 3.9) and N40R2 (-7.01 kcal/mol and 3.6), respectively. These new derivatives provided the most specificity to protein target, the more favorable binding with protein target (E-binding £ -7.00 kcal/mol), the good druglikeness properties, and significantly very low hepatotoxicity (-0.7 £ Tox_P £ 4.4) compared to the podophyllotoxin. Moreover, it was also found that the best podophyllotoxin derivatives (9 ligands) were likely to form strong interaction with stable conformations in b-tubulin regions within binding site cavity. From the overall results, it can be concluded that these new podophyllotoxin derivatives might be new drug candidates as the microtubule-depolymerizing agents. Keywords :  Podophyllotoxin derivatives ; tubulin heterodimer ; molecular docking ; ADMET

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Published

2022-01-10