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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Prognostic relevance of AGR2 expression in breast cancer.

PURPOSE: We aimed to evaluate the expression of the human anterior gradient-2 (AGR2) in breast cancer on RNA and protein level and to correlate it with clinicopathologic data, including patient survival. EXPERIMENTAL DESIGN: AGR2 mRNA expression was assessed by reverse transcription-PCR in 25 breast cancer samples and normal tissues. A polyclonal rabbit AGR antiserum was used for immunohistochemistry on 155 clinicopathologically characterized cases. Statistical analyses were applied to test for prognostic and diagnostic associations. RESULTS: Immunohistochemical detection of AGR2 was statistically significantly associated with positive estrogen receptor status and lower tumor grade. AGR2-positive tumors showed significantly longer overall survival times in univariate analyses. For the subgroup of nodal-negative tumors, an independent prognostic value of AGR2 was found. CONCLUSIONS: The expression of AGR2 in breast cancer is strongly associated with markers of tumor differentiation (estrogen receptor positivity, lower tumor grade). A prognostic effect of AGR2 for overall survival could be shown, which became independently significant for the group of nodal-negative tumors.[1]


  1. Prognostic relevance of AGR2 expression in breast cancer. Fritzsche, F.R., Dahl, E., Pahl, S., Burkhardt, M., Luo, J., Mayordomo, E., Gansukh, T., Dankof, A., Knuechel, R., Denkert, C., Winzer, K.J., Dietel, M., Kristiansen, G. Clin. Cancer Res. (2006) [Pubmed]
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