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EMX2 gene expression predicts liver metastasis and survival in colorectal cancer

Aykut, Berk ; Ochs, Markus ; Radhakrishnan, Praveen ; Brill, Adrian ; Höcker, Hermine ; Schwarz, Sandra ; Weissinger, Daniel ; Kehm, Roland ; Kulu, Yakup ; Ulrich, Alexis ; Schneider, Martin

In: BMC Cancer, 17 (2017), Nr. 555. S. 1-8. ISSN 1471-2407

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Download (2MB) | Lizenz: Creative Commons LizenzvertragEMX2 gene expression predicts liver metastasis and survival in colorectal cancer von Aykut, Berk ; Ochs, Markus ; Radhakrishnan, Praveen ; Brill, Adrian ; Höcker, Hermine ; Schwarz, Sandra ; Weissinger, Daniel ; Kehm, Roland ; Kulu, Yakup ; Ulrich, Alexis ; Schneider, Martin steht unter einer Creative Commons Namensnennung 3.0 Deutschland

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Abstract

Background: The Empty Spiracles Homeobox (EMX-) 2 gene has been associated with regulation of growth and differentiation in neuronal development. While recent studies provide evidence that EMX2 regulates tumorigenesis of various solid tumors, its role in colorectal cancer remains unknown. We aimed to assess the prognostic significance of EMX2 expression in stage III colorectal adenocarcinoma. Methods: Expression levels of EMX2 in human colorectal cancer and adjacent mucosa were assessed by qRT-PCR technology, and results were correlated with clinical and survival data. siRNA-mediated knockdown and adenoviral delivery-mediated overexpression of EMX2 were performed in order to investigate its effects on the migration of colorectal cancer cells in vitro. Results: Compared to corresponding healthy mucosa, colorectal tumor samples had decreased EMX2 expression levels. Furthermore, EMX2 down-regulation in colorectal cancer tissue was associated with distant metastasis (M1) and impaired overall patient survival. In vitro knockdown of EMX2 resulted in increased tumor cell migration. Conversely, overexpression of EMX2 led to an inhibition of tumor cell migration. Conclusions: EMX2 is frequently down-regulated in human colorectal cancer, and down-regulation of EMX2 is a prognostic marker for disease-free and overall survival. EMX2 might thus represent a promising therapeutic target in colorectal cancer.

Dokumententyp: Artikel
Titel der Zeitschrift: BMC Cancer
Band: 17
Nummer: 555
Verlag: BioMed Central; Springer
Ort der Veröffentlichung: London; Berlin; Heidelberg
Erstellungsdatum: 05 Sep. 2017 08:54
Erscheinungsjahr: 2017
ISSN: 1471-2407
Seitenbereich: S. 1-8
Institute/Einrichtungen: Zentrale und Sonstige Einrichtungen > Zentralbereich Neuenheimer Feld
Medizinische Fakultät Heidelberg und Uniklinikum > Chirurgische Universitätsklinik
DDC-Sachgruppe: 610 Medizin
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