Subset of esophageal adenocarcinoma expresses adhesion molecule l1 in contrast to squamous cell carcinoma.

Abstract

BACKGROUND:

Esophageal adenocarcinoma is currently the most rapidly increasing cancer in Western populations. L1 (CD171), a neural cell adhesion molecule, has an essential function in tumor progression and has been shown to be expressed in the proliferating cells of the intestinal crypts in mice. The aim of the current study was to determine L1 expression in esophageal cancer and to evaluate whether L1 could serve as a potential marker and therapeutic target for this tumor type.

MATERIALS AND METHODS:

L1 expression was assessed on a tissue microarray with 257 surgically resected esophageal cancer samples by immunohistochemistry with a monoclonal antibody (Clone UJ127). L1 expression was correlated with clinicopathological data.

RESULTS:

L1 was detected in 22 (9%) of 257 esophageal cases, whereas 235 (91%) were L1 negative. Nineteen (86%) of the 22 L1-positive cases were adenocarcinoma. Cross table analysis showed a significant association between L1 expression and adenocarcinoma subtype (p<0.001), but not squamous cell carcinoma.

CONCLUSION:

L1 expression in a subgroup of esophageal cancer is specifically prevalent in adenocarcinoma. Data suggest L1 as a potential target for biological therapy in L1-positive esophageal adenocarcinoma patients.

• Authors: Tamina Rawnaq, Helge Kleinhans, Marius Uto, Paulus G Schurr, Uta Reichelt, Guellue Cataldegirmen, Karim A Gawad, Emre F Yekebas, Melitta Schachner, Jakob R Izbicki, Jussuf T Kaifi
• Journal: Anticancer research (Anticancer Res) Vol. 29 Issue 4 Pg. 1195-9 (Apr 2009) ISSN: 0250-7005 [Print] Greece
• PMID: 19414364 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Biomarkers, Tumor
• Neural Cell Adhesion Molecule L1

Topics

• Adenocarcinoma (metabolism, secondary)
• Biomarkers, Tumor (metabolism)
• Carcinoma, Squamous Cell (metabolism, secondary)
• Esophageal Neoplasms (metabolism, pathology)
• Female
• Humans
• Immunoenzyme Techniques
• Male
• Middle Aged
• Neural Cell Adhesion Molecule L1 (metabolism)
• Prognosis
• Retrospective Studies
• Survival Rate
• Tissue Array Analysis