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Published in: Molecular Cancer 1/2013

Open Access 01-12-2013 | Research

Molecular changes induced by the curcumin analogue D6 in human melanoma cells

Authors: Carla Rozzo, Manuela Fanciulli, Cristina Fraumene, Antonio Corrias, Tiziana Cubeddu, Ilaria Sassu, Sara Cossu, Valentina Nieddu, Grazia Galleri, Emanuela Azara, Maria Antonietta Dettori, Davide Fabbri, Giuseppe Palmieri, Marina Pisano

Published in: Molecular Cancer | Issue 1/2013

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Abstract

Background

In a previous report, we described the in vitro and in vivo antiproliferative and proapoptotic activity of a hydroxylated biphenyl (D6), a structural analogue of curcumin, on malignant melanoma and neuroblastoma tumours. In this paper, we investigated the molecular changes induced by such a compound, underlying cell growth arrest and apoptosis in melanoma cells.

Results

To shed light on the mechanisms of action of D6, we firstly demonstrated its quick cellular uptake and subsequent block of cell cycle in G2/M phase transition. A gene expression profile analysis of D6-treated melanoma cells and fibroblasts was then carried out on high density microarrays, to assess gene expression changes induced by this compound. The expression profile study evidenced both an induction of stress response pathways and a modulation of cell growth regulation mechanisms. In particular, our data suggest that the antiproliferative and proapoptotic activities of D6 in melanoma could be partially driven by up-regulation of the p53 signalling pathways as well as by down-regulation of the PI3K/Akt and NF-kB pathways. Modulation of gene expression due to D6 treatment was verified by western blot analysis for single proteins of interest, confirming the results from the gene expression profile analysis.

Conclusions

Our findings contribute to the understanding of the mechanisms of action of D6, through a comprehensive description of the molecular changes induced by this compound at the gene expression level, in agreement with the previously reported anti-tumour effects on melanoma cells.
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Metadata
Title
Molecular changes induced by the curcumin analogue D6 in human melanoma cells
Authors
Carla Rozzo
Manuela Fanciulli
Cristina Fraumene
Antonio Corrias
Tiziana Cubeddu
Ilaria Sassu
Sara Cossu
Valentina Nieddu
Grazia Galleri
Emanuela Azara
Maria Antonietta Dettori
Davide Fabbri
Giuseppe Palmieri
Marina Pisano
Publication date
01-12-2013
Publisher
BioMed Central
Published in
Molecular Cancer / Issue 1/2013
Electronic ISSN: 1476-4598
DOI
https://doi.org/10.1186/1476-4598-12-37

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