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A Novel Cytotoxic Conjugate Derived from the Natural Product Podophyllotoxin as a Direct-Target Protein Dual Inhibitor

Authors: Paula Díez; Ángela-Patricia Hernández; Ángela-Patricia Hernández; Martin Perez-Andres; Manuel Fuentes; Pablo G. Ortega; María Ángeles Castro; +3 Authors

A Novel Cytotoxic Conjugate Derived from the Natural Product Podophyllotoxin as a Direct-Target Protein Dual Inhibitor

Abstract

Natural products are the ideal basis for the design of novel efficient molecular entities. Podophyllotoxin, a naturally occurring cyclolignan, is an example of natural product which displays a high versatility from a biological activity point of view. Based on its unique chemical structure, different derivatives have been synthesized presenting the original antitumoral properties associated with the compound, i.e., the tubulin polymerization inhibition and arising anti-topoisomerase II activity from structural modifications on the cyclolignan skeleton. In this report, we present a novel conjugate or hybrid which chemically combines both biological activities in one single molecule. Chemical design has been planned based in our lead compound, podophyllic aldehyde, as an inhibitor of tubulin polymerization, and in etoposide, an approved antitumoral drug targeting topoisomerase II. The cytotoxicity and selectivity of the novel synthetized hybrid has been evaluated in several cell lines of different solid tumors. In addition, these dual functional effects of the novel compound have been also evaluated by molecular docking approaches.

Keywords

Cytotoxicity, Organic chemistry, Apoptosis, etoposide, Article, Anti-topoisomerase-II, Structure-Activity Relationship, QD241-441, anti-topoisomerase-II, Protein inhibition, Tubulin, Cell Line, Tumor, Humans, Flow cytometry, Hybridization, hybridization, Tubulin polymerization, Etoposide, Podophyllotoxin, Aldehydes, Biological Products, Conjugation, flow cytometry, podophyllotoxin, molecular docking, Antineoplastic Agents, Phytogenic, Tubulin Modulators, Molecular Docking Simulation, tubulin polymerization, podophyllotoxin; etoposide; protein inhibition; tubulin polymerization; anti-topoisomerase-II; hybridization; conjugation; cytotoxicity; flow cytometry; molecular docking, DNA Topoisomerases, Type II, Molecular docking, protein inhibition, cytotoxicity, Drug Screening Assays, Antitumor, conjugation

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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