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BMC Cancer
Published in: BMC Cancer 1/2008

Open Access 01-12-2008 | Research article

Prognostic Impact of Array-based Genomic Profiles in Esophageal Squamous Cell Cancer

Authors: Ana Carneiro, Anna Isinger, Anna Karlsson, Jan Johansson, Göran Jönsson, Pär-Ola Bendahl, Dan Falkenback, Britta Halvarsson, Mef Nilbert

Published in: BMC Cancer | Issue 1/2008

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Abstract

Background

Esophageal squamous cell carcinoma (ESCC) is a genetically complex tumor type and a major cause of cancer related mortality. Although distinct genetic alterations have been linked to ESCC development and prognosis, the genetic alterations have not gained clinical applicability. We applied array-based comparative genomic hybridization (aCGH) to obtain a whole genome copy number profile relevant for identifying deranged pathways and clinically applicable markers.

Methods

A 32 k aCGH platform was used for high resolution mapping of copy number changes in 30 stage I-IV ESCC. Potential interdependent alterations and deranged pathways were identified and copy number changes were correlated to stage, differentiation and survival.

Results

Copy number alterations affected median 19% of the genome and included recurrent gains of chromosome regions 5p, 7p, 7q, 8q, 10q, 11q, 12p, 14q, 16p, 17p, 19p, 19q, and 20q and losses of 3p, 5q, 8p, 9p and 11q. High-level amplifications were observed in 30 regions and recurrently involved 7p11 (EGFR), 11q13 (MYEOV, CCND1, FGF4, FGF3, PPFIA, FAD, TMEM16A, CTTS and SHANK2) and 11q22 (PDFG). Gain of 7p22.3 predicted nodal metastases and gains of 1p36.32 and 19p13.3 independently predicted poor survival in multivariate analysis.

Conclusion

aCGH profiling verified genetic complexity in ESCC and herein identified imbalances of multiple central tumorigenic pathways. Distinct gains correlate with clinicopathological variables and independently predict survival, suggesting clinical applicability of genomic profiling in ESCC.
Appendix
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Metadata
Title
Prognostic Impact of Array-based Genomic Profiles in Esophageal Squamous Cell Cancer
Authors
Ana Carneiro
Anna Isinger
Anna Karlsson
Jan Johansson
Göran Jönsson
Pär-Ola Bendahl
Dan Falkenback
Britta Halvarsson
Mef Nilbert
Publication date
01-12-2008
Publisher
BioMed Central
Published in
BMC Cancer / Issue 1/2008
Electronic ISSN: 1471-2407
DOI
https://doi.org/10.1186/1471-2407-8-98

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