DEK is a potential marker for aggressive phenotype and irinotecan-based therapy response in metastatic colorectal cancer

DEK is a transcription factor involved in stabilization of heterochromatin and cruciform structures. It plays an important role in development and progression of different types of cancer. This study aims to analyze the role of DEK in metastatic colorectal cancer. Baseline DEK expression was firstly...

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Veröffentlicht in:BMC cancer 2014-12, Vol.14 (1), p.965-965, Article 965
Hauptverfasser: Martinez-Useros, Javier, Rodriguez-Remirez, Maria, Borrero-Palacios, Aurea, Moreno, Irene, Cebrian, Arancha, Gomez del Pulgar, Teresa, del Puerto-Nevado, Laura, Vega-Bravo, Ricardo, Puime-Otin, Alberto, Perez, Nuria, Zazo, Sandra, Senin, Clara, Fernandez-Aceñero, Maria J, Soengas, Maria S, Rojo, Federico, Garcia-Foncillas, Jesus
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container_end_page 965
container_issue 1
container_start_page 965
container_title BMC cancer
container_volume 14
creator Martinez-Useros, Javier
Rodriguez-Remirez, Maria
Borrero-Palacios, Aurea
Moreno, Irene
Cebrian, Arancha
Gomez del Pulgar, Teresa
del Puerto-Nevado, Laura
Vega-Bravo, Ricardo
Puime-Otin, Alberto
Perez, Nuria
Zazo, Sandra
Senin, Clara
Fernandez-Aceñero, Maria J
Soengas, Maria S
Rojo, Federico
Garcia-Foncillas, Jesus
description DEK is a transcription factor involved in stabilization of heterochromatin and cruciform structures. It plays an important role in development and progression of different types of cancer. This study aims to analyze the role of DEK in metastatic colorectal cancer. Baseline DEK expression was firstly quantified in 9 colorectal cell lines and normal mucosa by WB. SiRNA-mediated DEK inhibition was carried out for transient DEK silencing in DLD1 and SW620 to dissect its role in colorectal cancer aggressiveness. Irinotecan response assays were performed with SN38 over 24 hours and apoptosis was quantified by flow cytometry. Ex-vivo assay was carried out with 3 fresh tumour tissues taken from surgical resection and treated with SN38 for 24 hours. DEK expression was determined by immunohistochemistry in 67 formalin-fixed paraffin-embedded tumour samples from metastatic colorectal cancer patients treated with irinotecan-based therapy as first-line treatment. The DEK oncogene is overexpressed in all colorectal cancer cell lines. Knock-down of DEK on DLD1 and SW620 cell lines decreased cell migration and increased irinotecan-induced apoptosis. In addition, low DEK expression level predicted irinotecan-based chemotherapy response in metastatic colorectal cancer patients with KRAS wild-type. These data suggest DEK overexpression as a crucial event for the emergence of an aggressive phenotype in colorectal cancer and its potential role as biomarker for irinotecan response in those patients with KRAS wild-type status.
doi_str_mv 10.1186/1471-2407-14-965
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It plays an important role in development and progression of different types of cancer. This study aims to analyze the role of DEK in metastatic colorectal cancer. Baseline DEK expression was firstly quantified in 9 colorectal cell lines and normal mucosa by WB. SiRNA-mediated DEK inhibition was carried out for transient DEK silencing in DLD1 and SW620 to dissect its role in colorectal cancer aggressiveness. Irinotecan response assays were performed with SN38 over 24 hours and apoptosis was quantified by flow cytometry. Ex-vivo assay was carried out with 3 fresh tumour tissues taken from surgical resection and treated with SN38 for 24 hours. DEK expression was determined by immunohistochemistry in 67 formalin-fixed paraffin-embedded tumour samples from metastatic colorectal cancer patients treated with irinotecan-based therapy as first-line treatment. The DEK oncogene is overexpressed in all colorectal cancer cell lines. Knock-down of DEK on DLD1 and SW620 cell lines decreased cell migration and increased irinotecan-induced apoptosis. In addition, low DEK expression level predicted irinotecan-based chemotherapy response in metastatic colorectal cancer patients with KRAS wild-type. 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This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. 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Rodriguez-Remirez, Maria ; Borrero-Palacios, Aurea ; Moreno, Irene ; Cebrian, Arancha ; Gomez del Pulgar, Teresa ; del Puerto-Nevado, Laura ; Vega-Bravo, Ricardo ; Puime-Otin, Alberto ; Perez, Nuria ; Zazo, Sandra ; Senin, Clara ; Fernandez-Aceñero, Maria J ; Soengas, Maria S ; Rojo, Federico ; Garcia-Foncillas, Jesus</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-b484t-2570ffad5f23fba517656027f9e3995adc60aa5d4389e68df0f5b458f9c7152e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Adult</topic><topic>Aged</topic><topic>Antineoplastic Agents, Phytogenic - therapeutic use</topic><topic>Apoptosis</topic><topic>Biomarkers, Tumor - analysis</topic><topic>Biomarkers, Tumor - physiology</topic><topic>Breast cancer</topic><topic>Camptothecin - analogs &amp; derivatives</topic><topic>Camptothecin - therapeutic use</topic><topic>Cell Line, Tumor</topic><topic>Cell Movement</topic><topic>Cell Survival</topic><topic>Chemotherapy</topic><topic>Chromosomal Proteins, Non-Histone - analysis</topic><topic>Chromosomal Proteins, Non-Histone - physiology</topic><topic>Colorectal cancer</topic><topic>Colorectal Neoplasms - chemistry</topic><topic>Colorectal Neoplasms - drug therapy</topic><topic>Colorectal Neoplasms - pathology</topic><topic>Down-Regulation</topic><topic>Female</topic><topic>Gene Expression</topic><topic>Gene Knockdown Techniques</topic><topic>Humans</topic><topic>Irinotecan</topic><topic>Male</topic><topic>Medical research</topic><topic>Medical treatment</topic><topic>Middle Aged</topic><topic>Oncogene Proteins - analysis</topic><topic>Oncogene Proteins - physiology</topic><topic>Phenotype</topic><topic>Poly-ADP-Ribose Binding Proteins</topic><topic>Proto-Oncogene Proteins - genetics</topic><topic>Proto-Oncogene Proteins p21(ras)</topic><topic>ras Proteins - genetics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Martinez-Useros, Javier</creatorcontrib><creatorcontrib>Rodriguez-Remirez, Maria</creatorcontrib><creatorcontrib>Borrero-Palacios, Aurea</creatorcontrib><creatorcontrib>Moreno, Irene</creatorcontrib><creatorcontrib>Cebrian, Arancha</creatorcontrib><creatorcontrib>Gomez del Pulgar, Teresa</creatorcontrib><creatorcontrib>del Puerto-Nevado, Laura</creatorcontrib><creatorcontrib>Vega-Bravo, Ricardo</creatorcontrib><creatorcontrib>Puime-Otin, Alberto</creatorcontrib><creatorcontrib>Perez, Nuria</creatorcontrib><creatorcontrib>Zazo, Sandra</creatorcontrib><creatorcontrib>Senin, Clara</creatorcontrib><creatorcontrib>Fernandez-Aceñero, Maria J</creatorcontrib><creatorcontrib>Soengas, Maria S</creatorcontrib><creatorcontrib>Rojo, Federico</creatorcontrib><creatorcontrib>Garcia-Foncillas, Jesus</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Oncogenes and Growth Factors Abstracts</collection><collection>ProQuest_Health &amp; 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Knock-down of DEK on DLD1 and SW620 cell lines decreased cell migration and increased irinotecan-induced apoptosis. In addition, low DEK expression level predicted irinotecan-based chemotherapy response in metastatic colorectal cancer patients with KRAS wild-type. These data suggest DEK overexpression as a crucial event for the emergence of an aggressive phenotype in colorectal cancer and its potential role as biomarker for irinotecan response in those patients with KRAS wild-type status.</abstract><cop>England</cop><pub>BioMed Central</pub><pmid>25515240</pmid><doi>10.1186/1471-2407-14-965</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record>
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subjects Adult
Aged
Antineoplastic Agents, Phytogenic - therapeutic use
Apoptosis
Biomarkers, Tumor - analysis
Biomarkers, Tumor - physiology
Breast cancer
Camptothecin - analogs & derivatives
Camptothecin - therapeutic use
Cell Line, Tumor
Cell Movement
Cell Survival
Chemotherapy
Chromosomal Proteins, Non-Histone - analysis
Chromosomal Proteins, Non-Histone - physiology
Colorectal cancer
Colorectal Neoplasms - chemistry
Colorectal Neoplasms - drug therapy
Colorectal Neoplasms - pathology
Down-Regulation
Female
Gene Expression
Gene Knockdown Techniques
Humans
Irinotecan
Male
Medical research
Medical treatment
Middle Aged
Oncogene Proteins - analysis
Oncogene Proteins - physiology
Phenotype
Poly-ADP-Ribose Binding Proteins
Proto-Oncogene Proteins - genetics
Proto-Oncogene Proteins p21(ras)
ras Proteins - genetics
title DEK is a potential marker for aggressive phenotype and irinotecan-based therapy response in metastatic colorectal cancer
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