Three Amino Acid Derivatives of Valproic Acid: Design, Synthesis, Theoretical and Experimental Evaluation as Anticancer Agents

ISSN: 1875-5992 (Online)
ISSN: 1871-5206 (Print)

Volume 17, 14 Issues, 2017

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Anti-Cancer Agents in Medicinal Chemistry

Formerly: Current Medicinal Chemistry - Anti-Cancer Agents

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Michelle Prudhomme
Institut de Chimie de Clermont-Ferrand
Université Clermont Auvergne

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Three Amino Acid Derivatives of Valproic Acid: Design, Synthesis, Theoretical and Experimental Evaluation as Anticancer Agents

Anti-Cancer Agents in Medicinal Chemistry, 14(7): 984-993.

Author(s): Gabriela R. Luna-Palencia, Federico Martinez-Ramos, Ismael Vasquez-Moctezuma, Manuel Jonathan Fragoso-Vazquez, Jessica Elena Mendieta-Wejebe, Itzia I. Padilla-Martínez, Yudibeth Sixto-Lopez, David Mendez-Luna, Jose Trujillo-Ferrara, Marco A. Meraz-Rios, Yadira Fonseca-Sabater and Jose Correa-Basurto.

Affiliation: Molecular Modeling and Drug Design Laboratory, Biophysics and Biocatalysis Lab, Biochemistry Lab, Seccion de Estudios de Posgrado e Investigacion y Departamento de Bioquimica, Escuela Superior de Medicina, Instituto Politecnico Nacional, Plan de San Luis y Diaz Miron, Distrito Federal 11340, Mexico.


Valproic acid (VPA) is extensively used as an anticonvulsive agent and as a treatment for other neurological disorders. It has been shown that VPA exerts an anti-proliferative effect on several types of cancer cells by inhibiting the activity of histone deacetylases (HDACs), which are involved in replication and differentiation processes. However, VPA has some disadvantages, among which are poor water solubility and hepatotoxicity. Therefore, the aim of the present study was to design and synthesize three derivatives of VPA to improve its physicochemical properties and anti-proliferative effects. For this purpose, the amino acids aspartic acid, glutamic acid and proline were added to the molecular structure of VPA. Docking and molecular dynamics simulations were used to determine the mode of recognition of these three derivatives by different conformations of HDAC8. This receptor was used as the specific target because of its high affinity for this type of substrate. The results demonstrate that, compared to VPA, the test compounds bind to different sites on the enzyme and that hydrogen bonds and hydrophobic interactions play key roles in this difference. The IC50 values of the VPA derivatives, experimentally determined using HeLa cells, were in the mM range. This result indicates that the derivatives have greater antiproliferative effects than the parent compound. Hence, these results suggest that these amino acid derivatives may represent a good alternative for anticancer treatment.


Amino acids, anticancer agents, histone deacetylase 8, theoretical/experimental studies, valproic acid derivatives.

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Article Details

Volume: 14
Issue Number: 7
First Page: 984
Last Page: 993
Page Count: 10
DOI: 10.2174/1871520614666140127113218
Price: $58

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