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Synthesis and antiproliferative assay of triazolyl-2,2-dimethyl-3-phenylpropanoates as potential HDAC inhibitors.

ABSTRACT: Recently, histone deacetylase (HDAC) inhibition has gained great importance in cancer treatment. We herein, describe the design, synthesis and biological testing of 16 compounds based on the structure modification of methyl 3-(4-(2-chloroacetamido)phenyl)-3-hydroxy-2,2-dimethylpropanoate (5) and methyl 3-(4-chlorophenyl)-3-hydroxy-2,2-dimethylpropanoate (14) as potent HDACIs. Two series were synthesized based on the structure of 3-(4-(2-chloroacetamido)phenyl)-3-hydroxy-2,2-dimethylpropanoate and 3-(4-chlorophenyl)-3-hydroxy-2,2-dimethylpropanoate. The compounds were tested in vitro for their antiproliferative activity against HeLa cells. The results identified compounds 16b, 16c, 18 (IC₅₀; 11.69, 0.69, 3.39 μM respectively) as potential good inhibitors compared to the standard drug doxorubicin (IC₅₀; 2.29 μM). Those compounds also exhibited promising activity against other cancer cell lines namely; HCT-116, MCF-7, PC3, A549 and therefore were selected as hits for further optimization. The docking experiment results performed on the HDAC-2 crystal structure were in close agreement with the biological testing results which suggest that those compounds potentially work through HDAC inhibition.

SUBMITTER: El-Rayes S

PROVIDER: S-EPMC9064006 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature

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Synthesis and antiproliferative assay of triazolyl-2,2-dimethyl-3-phenylpropanoates as potential HDAC inhibitors.

El-Rayes Samir S M S Gomaa G A Abouelmagd A Fathalla Walid W Ali Ibrahim A I IAI

RSC advances 20190401 24

Recently, histone deacetylase (HDAC) inhibition has gained great importance in cancer treatment. We herein, describe the design, synthesis and biological testing of 16 compounds based on the structure modification of methyl 3-(4-(2-chloroacetamido)phenyl)-3-hydroxy-2,2-dimethylpropanoate (5) and methyl 3-(4-chlorophenyl)-3-hydroxy-2,2-dimethylpropanoate (14) as potent HDACIs. Two series were synthesized based on the structure of 3-(4-(2-chloroacetamido)phenyl)-3-hydroxy-2,2-dimethylpropanoate an ...[more]

PMID: 35519591

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Project description:BackgroundEchinococcosis and cysticercosis are neglected tropical diseases caused by cestode parasites (family Taeniidae). Not only there is a small number of approved anthelmintics for the treatment of these cestodiases, but also some of them are not highly effective against larval stages, such that identifying novel drug targets and their associated compounds is critical. Histone deacetylase (HDAC) enzymes are validated drug targets in cancers and other diseases, and have been gaining relevance for developing new potential anti-parasitic treatments in the last years. Here, we present the anthelmintic profile for a panel of recently developed HDAC inhibitors against the model cestode Mesocestoides vogae (syn. M. corti).Methodology/principal findingsPhenotypic screening was performed on M. vogae by motility measurements and optical microscopic observations. Some HDAC inhibitors showed potent anthelmintic activities; three of them -entinostat, TH65, and TH92- had pronounced anthelmintic effects, reducing parasite viability by ~100% at concentrations of ≤ 20 μM. These compounds were selected for further characterization and showed anthelmintic effects in the micromolar range and in a time- and dose-dependent manner. Moreover, these compounds induced major alterations on the morphology and ultrastructural features of M. vogae. The potencies of these compounds were higher than albendazole and the anthelmintic effects were irreversible. Additionally, we evaluated pairwise drug combinations of these HDAC inhibitors and albendazole. The results suggested a positive interaction in the anthelmintic effect for individual pairs of compounds. Due to the maximum dose approved for entinostat, adjustments in the dose regime and/or combinations with currently-used anthelmintic drugs are needed, and the selectivity of TH65 and TH92 towards parasite targets should be assessed.Conclusion, significanceThe results presented here suggest that HDAC inhibitors represent novel and potent drug candidates against cestodes and pave the way to understanding the roles of HDACs in these parasites.

Dataset Information

Synthesis and antiproliferative assay of triazolyl-2,2-dimethyl-3-phenylpropanoates as potential HDAC inhibitors.

Publications

Synthesis and antiproliferative assay of triazolyl-2,2-dimethyl-3-phenylpropanoates as potential HDAC inhibitors.

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