Tubulin-based Structure-affinity Relationships for Antimitotic Vinca Alkaloids

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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Tubulin-based Structure-affinity Relationships for Antimitotic Vinca Alkaloids

Anti-Cancer Agents in Medicinal Chemistry, 12(3): 219-225.

Author(s): Claire Coderch, Antonio Morreale and Federico Gago.

Affiliation: Departmento de Farmacologia,Universidad de Alcala, 28871 Alcala de Henares, Madrid, Spain.


The Vinca alkaloids are a group of widely used anticancer drugs, originally extracted from the Madagascar periwinkle, that disrupt microtubule dynamics in mammalian cells by interfering with proper assembly of α,β-tubulin heterodimers. They favor curved tubulin assemblies that destabilize microtubules and induce formation of spiral aggregates. Their binding energy profiles have been characterized by means of sedimentation velocity assays and the binding site of vinblastine at the interface between two tubulin dimers (α1β1 – α2β2) has been ascertained by X-ray crystallographic studies on a complex of tubulin with the stathmin-like domain of protein RB3, albeit at relatively low resolution. Here we use molecular modeling and simulation techniques to build, refine and perform a comparative analysis of the three-dimensional complexes of vinblastine, vincristine, vinorelbine and vinflunine with a β1α2-tubulin interface in explicit water to rationalize the binding affinity differences in structural and energetic terms. Our results shed some more light into the binding determinants and the structure-activity relationships of these clinically useful agents.


Tubulin, Antimitotic drugs, Vinca alkaloids, Computer simulations, Binding energy analysis, Molecular dynamics, Vinblastine, truncated octahedron, Halichondria okadai, colchicine-binding.

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Article Details

Volume: 12
Issue Number: 3
First Page: 219
Last Page: 225
Page Count: 7
DOI: 10.2174/187152012800228841
Price: $58

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