α-Mangostin
is one of the secondary metabolites in mangosteen
pericarp, which has been reported to have anti-breast cancer activity.
In our previous study, three α-mangostin derivatives were computationally
designed as hERα antagonists. In this present study, the designed
compounds were synthesized undergoing a benzoylation reaction between
α-mangostin with three benzoyl chloride derivatives to produce
three derivatives, namely, AMB-1, AMB-2,
and AMB-10. The synthesized compounds were then evaluated
for their antiproliferative activity against the MCF-7 breast cancer
cell model with hERα as the protein target. The in vitro assay shows moderate activity (57–126 μM) for all derivatives.
The dynamic behaviors of all ligands, including α-mangostin
and 4-hydroxytamoxifen (4-OHT), were studied with 100 ns of MD simulation.
The structure–activity relationship shows that although it
does not entirely concord with the expected design, it can explain
the trend of α-mangostin and its derivatives antiproliferative
activities against MCF-7, which associates with hERα antagonism.