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Published in: BMC Cancer 1/2011

Open Access 01-12-2011 | Research article

Circulating levels of cell adhesion molecule L1 as a prognostic marker in gastrointestinal stromal tumor patients

Authors: Hilke Zander, Tamina Rawnaq, Max von Wedemeyer, Michael Tachezy, Miriam Kunkel, Gerrit Wolters, Maximilian Bockhorn, Melitta Schachner, Jakob R Izbicki, Jussuf Kaifi

Published in: BMC Cancer | Issue 1/2011

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Abstract

Background

L1 cell adhesion molecule (CD171) is expressed in many malignant tumors and its expression correlates with unfavourable outcome. It thus represents a target for tumor diagnosis and therapy. An earlier study conducted by our group identified L1 expression levels in primary gastrointestinal stromal tumors (GIST) as a prognostic marker. The aim of the current study was to compare L1 serum levels of GIST patients with those of healthy controls and to determine whether levels of soluble L1 in sera could serve as a prognostic marker.

Methods

Using a sensitive enzyme-linked immunosorbent assay (ELISA), soluble L1 was measured in sera of 93 GIST patients und 151 healthy controls. Soluble L1 levels were then correlated with clinicopathological data.

Results

Median levels of soluble L1 were significantly higher (p < 0.001; Mann-Whitney U test) in sera of GIST patients compared to healthy individuals. Median soluble L1 levels were particularly elevated in patients with recurrence and relapse (p < 0.05; Mann Whitney U test).

Conclusion

These results suggest that high soluble L1 levels predict poor prognosis and may thus be a promising tumor marker that can contribute to individualise therapy.
Appendix
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Metadata
Title
Circulating levels of cell adhesion molecule L1 as a prognostic marker in gastrointestinal stromal tumor patients
Authors
Hilke Zander
Tamina Rawnaq
Max von Wedemeyer
Michael Tachezy
Miriam Kunkel
Gerrit Wolters
Maximilian Bockhorn
Melitta Schachner
Jakob R Izbicki
Jussuf Kaifi
Publication date
01-12-2011
Publisher
BioMed Central
Published in
BMC Cancer / Issue 1/2011
Electronic ISSN: 1471-2407
DOI
https://doi.org/10.1186/1471-2407-11-189

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