Molecular Docking, Pharmacokinetics and Molecular Dynamics Simulation Studies of Some Bioactive Compounds Isolated from Entandrophragma congoënse for Antiplasmodial Activity
Sikiru Akinyeye Ahmed
Department of Chemistry and Industrial Chemistry, Kwara State University, Malete, Nigeria.
Gervais Mouthé Happi
Department of Chemistry, Higher Teacher Training College Bambili, The University of Bamenda, Cameroon.
Désiré Soh
Department of Chemistry, Higher Teacher Training College Bambili, The University of Bamenda, Cameroon.
Shina Salau
Department of Chemistry, Higher Teacher Training College Bambili, The University of Bamenda, Cameroon.
*Author to whom correspondence should be addressed.
Abstract
As a follow-up to earlier reported works on the phytochemical study of some isolated bioactive compounds from the root and bark of Entandrophragma congoënse as potent anti-plasmodium drugs (Happi et. al.2005), some of the isolated compounds were tested in vitro for antiplasmodial and cytotoxicity but no insight was given into the binding affinities of these compounds, the ADMET (Absorption, Distribution, Metabolism, Excretion and Toxicity), drug-likeness studies as well as molecular dynamics simulation of some of the isolates. Hence, a total of 21 compounds including 19 isolates and 2 standard drugs were computationally studied for antimalarial activity against the target receptor with Protein Data Bank code (PDB code: 5TBO), but only 4 of the isolated compounds (L1, L2, L4 and L15) showed promise potent hits against Plasmodium. The results of molecular docking, ADMET studies and molecular dynamics simulations reveal that compound L15, when isolated, can alone, or together with other qualified compounds such as L1, L2 and L4 provide a better inhibition rating compared to Chloroquine® (L21) the FDA-approved drug for the treatment of malaria.
Keywords: Anti-plasmodial activity, ADMET, molecular docking, chloroquine®, molecular dynamics simulation, protein data bank