Abstract
The anti-hypertensive drugs amlodipine, atenolol and lisinopril, in ordinary and PEGylated forms, with different combined-ratios, were studied by molecular dynamics simulations using GROMACS software. Twenty simulation systems were designed to evaluate the interactions of drug mixtures with a dimyristoylphosphatidylcholine (DMPC) lipid bilayer membrane, in the presence of water molecules. In the course of simulations, various properties of the systems were investigated, including drug location, diffusion and mass distribution in the membrane; drug orientation; the lipid chain disorder as a result of drug penetration into the DMPC membrane; the number of hydrogen bonds; and drug surface area. According to the results obtained, combined drugs penetrate deeper into the DMPC lipid bilayer membrane, and the lipid chains remain ordered. Also, the combined PEGylated drugs, at a combination ratio of 1:1:1, enhance drug penetration into the DMPC membrane, reduce drug agglomeration, orient the drug in a proper angle for easy penetration into the membrane, and decrease undesirable lipotoxicity due to distorted membrane self-assembly and thickness.
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The cooperation of High Performance Computing Research Center (HPCRC) of Amirkabir University of Technology (Tehran Polytechnic) is gratefully appreciated.
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Fig. S1
MSD curve of lisinopril in system S1. (GIF 77 kb)
Fig. S2
MSD curve of PEGylated amlodipine in system S2. (GIF 74 kb)
Fig. S3
MSD curve of amlodipine in system S3. (GIF 68 kb)
Fig. S4
MSD curve of PEGylated amlodipine in system S4. (GIF 74 kb)
Fig. S5
MSD curve of lisinopril in system S5. (GIF 105 kb)
Fig. S6
MSD curve of PEGylated amlodipine in system S6. (GIF 78 kb)
Fig. S7
MSD curve of atenolol in system S7. (GIF 75 kb)
Fig. S8
MSD curve of PEGylated amlodipine in system S8. (GIF 78 kb)
Fig. S9
MSD curve of lisinopril in system S9. (GIF 80 kb)
Fig. S10
MSD curve of PEGylated amlodipine in system S10. (GIF 101 kb)
Fig. S11
MSD curve of atenolol in system S11. (GIF 79 kb)
Fig. S12
MSD curve of lisinopril in system S12. (GIF 105 kb)
Fig. S13
MSD curve of atenolol in system S13. (GIF 112 kb)
Fig. S14
MSD curve of PEGylated atenolol in system S14. (GIF 69 kb)
Fig. S15
MSD curve of lisinopril in system S15. (GIF 106 kb)
Fig. S16
MSD curve of PEGylated amlodipine in system S16. (GIF 107 kb)
Fig. S17
MSD curve of lisinopril in system S17. (GIF 101 kb)
Fig. S18
MSD curve of PEGylated amlodipine in system S18. (GIF 100 kb)
Fig. S19
MSD curve of atenolol in system S19. (GIF 110 kb)
Fig. S20
MSD curve of PEGylated amlodipine in system S20. (GIF 100 kb)
Fig. S21
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S2. (GIF 31 kb)
Fig. S22
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S3. (GIF 35 kb)
Fig. S23
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S4. (GIF 35 kb)
Fig. S24
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S5. (GIF 38 kb)
Fig. S25
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S6. (GIF 33 kb)
Fig. S26
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S7. (GIF 37 kb)
Fig. S27
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S8. (GIF 34 kb)
Fig. S28
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S9. (GIF 42 kb)
Fig. S29
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S10. (GIF 34 kb)
Fig. S30
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S11. (GIF 38 kb)
Fig. S31
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S12. (GIF 34 kb)
Fig. S32
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S14. (GIF 35 kb)
Fig. S33
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S15. (GIF 33 kb)
Fig. S34
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S16. (GIF 34 kb)
Fig. S35
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S17. (GIF 34 kb)
Fig. S36
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S18. (GIF 34 kb)
Fig. S37
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S19. (GIF 32 kb)
Fig. S38
Average net force ratio per each chain (f r=f d/f 0) vs time, where f is the average net force due to chain–chain interactions of the lipid chains in the bilayer membrane, in the presence (f d) and absence (f 0) of the drug, for simulation system S20. (GIF 32 kb)
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Yousefpour, A., Modarress, H., Goharpey, F. et al. Combination of anti-hypertensive drugs: a molecular dynamics simulation study. J Mol Model 23, 158 (2017). https://doi.org/10.1007/s00894-017-3333-9
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DOI: https://doi.org/10.1007/s00894-017-3333-9