Title:Detection of Natural Inhibitors against Human Liver Cancer Cell Lines through QSAR, Molecular Docking and ADMET Studies
Volume: 21
Issue: 8
Author(s): Sarfaraz Alam, Sadaf Nasreen, Ateeque Ahmad, Mahendra Pandurang Darokar and Feroz Khan*
Affiliation:
- Metabolic & Structural Biology Department, CSIR-Central Institute of Medicinal & Aromatic Plants, Lucknow 226015 (Uttar Pradesh),India
Keywords:
QSAR, Virtual screening, Drug designing, ADMET, Anticancer, Docking.
Abstract:
Background: Liver cancer is ranked as the fifth most prevalent and third most lethal cancer
worldwide. The incidence rates of this cancer are on the rise, and only limited treatment options
are available.
Methods: To identify and optimize the inhibitors of liver cancer cell-lines, a QSAR model was developed
by using multiple linear regression methods. The robustness of the model was validated
through statistical methods and wet-lab experiments.
Results: The developed QSAR models yielded high activity descriptor relationship accuracy of
91%, referred to by regression coefficient (r2= 0.91), and a high activity prediction accuracy of
89%. The external predicted (pred_r2) ability of the model was found to be 90%.
Conclusion: The QSAR study indicates that chemical descriptors such as to measure of electronegative
atom count (Epsilon3), atom type count descriptors (MMFF_10), number of a carbon atom
connected with four single bonds (SssssCE- index), molecular weight and, number of oxygen atom
connected with two aromatic bonds (SaaOE-index) are significantly correlated with anticancer activity.
The model, which was validated statistically and through wet-lab experiments, was further
used in the virtual screening of potential inhibitors against the liver cancer cell line WRL68. ADMET
risk screening, synthetic accessibility, and Lipinski's rule of five are used to filter false positive
hits. AfterwardS, to achieve a set of aligned ligand poses and rank the predicted active compounds,
docking studies were carried out. The studied compounds and their metabolites were also
analyzed for different pharmacokinetics parameters. Finally, a series of compounds was proposed as
anticancer agents.
