Multiple ligands simultaneous molecular docking and dynamics approach to study the synergetic inhibitory of curcumin
La Ode Aman1, Netty Ino Ischak2, Teti Sutriyati Tuloli1
1Department of Pharmacy, Faculty of Sport and Health, Universitas Negeri Gorontalo, Gorontalo, Indonesia.
Background And Purpose:
Lapatinib (FMM) and 5-fluorouracil (5-FU) are anticancer drugs employed in a combination approach. FMM inhibits tyrosine phosphorylation of ErbB4 while 5-FU inhibits cell proliferation. This research aimed to investigate the potential of two compounds, namely (1E,4E)-1,5-bis (4-hydroxyphenyl) penta-1,4-dien-3-one (AC01) and (1E,4E)-1,5-bis (3,4-dihydroxy phenyl) penta-1,4-dien-3-one (AC02), both as individual inhibitors and combination partners with FMM, targeting ErbB4 inhibition. AC01 and AC02 were combined with FMM, which targets ErbB4. The combination of 5-FU with FMM served as a reference in this study.
Experimental Approach:
The research utilized computational simulation methods such as single and multiple ligands simultaneously docking and dynamics. Data analysis was performed using AutoDockTools and gmx_MMPBSA.
Findings/Results:
Single docking results indicated that 5-FU exhibited the lowest binding affinity, while FMM demonstrated the highest. Simultaneous docking of AC01 and AC02 paired with FMM revealed their binding positions overlapping with the FMM-5-FU workspace. The FMM-AC01 and FMM-AC02 complexes exhibited slightly weaker binding affinities compared to FMM-5-FU. In combination with FMM, AC01 and AC02 occupied the ErbB4 activation loop, whereas 5-FU was outside the activation loop. Furthermore, in their interaction with ErbB4, AC02 exhibited slightly stronger binding than AC01, as confirmed by the average binding free energy calculations from molecular dynamics simulations.
Conclusion And Implications:
In conclusion, computational simulations indicated that both AC01 and AC02 have the potential to act as anticancer candidates, demonstrating ErbB4 inhibitory potential both as individual agents and in synergy with FMM.
Insights
Two novel compounds, AC01 and AC02, show potential as ErbB4 inhibitors. Computational studies suggest they can act as anticancer agents individually or in combination with Lapatinib (FMM).
Area of Science:
- Computational chemistry
- Molecular modeling
- Drug discovery
Background:
- Lapatinib (FMM) and 5-fluorouracil (5-FU) are established anticancer drugs.
- FMM targets tyrosine phosphorylation of ErbB4, while 5-FU inhibits cell proliferation.
- ErbB4 is a key target in cancer therapy.
Purpose of the Study:
- To investigate the ErbB4 inhibitory potential of AC01 and AC02.
- To evaluate AC01 and AC02 as monotherapies and in combination with FMM.
- To compare the efficacy of AC01/AC02-FMM combinations with the FMM-5-FU reference.
Main Methods:
- Computational simulations including single and simultaneous ligand docking.
- Molecular dynamics simulations for binding free energy calculations.
- Analysis using AutoDockTools and gmx_MMPBSA.
Main Results:
- 5-FU showed the lowest binding affinity; FMM showed the highest.
- AC01 and AC02 bind to ErbB4, with overlapping positions to FMM-5-FU.
- AC01 and AC02 occupy the ErbB4 activation loop, unlike 5-FU.
- AC02 demonstrated slightly stronger binding to ErbB4 than AC01.
Conclusions:
- AC01 and AC02 show promise as anticancer drug candidates.
- These compounds exhibit potential for ErbB4 inhibition.
- AC01 and AC02 may act synergistically with FMM for enhanced anticancer effects.
Related Concept Videos
Allosteric Regulation
Transducer Mechanism: Enzyme-Linked Receptors
Major types that are helpful drug targets include:
Ligand Binding and Linkage
Cooperative Allosteric Transitions
Receptor Tyrosine Kinases
The Equilibrium Binding Constant and Binding Strength


