Relationship between Preoperative Serum CA15-3 and CEA Levels and Clinicopathological Parameters in Breast Cancer

  • Published : 2014.02.28


Background: CEA and CA 15.3 serum tumor markers are currently used in clinical practice for monitoring therapy. The aim of this study was to evaluate serum level of these markers among healthy females and invasive breast carcinoma (IBC) patients and to determine any relationships with clinicopathological factors. Materials and Methods: 60 Iranian females were enrolled in this study, 30 healthy and 30 diagnosed with breast cancer who had not received any preoperative chemotherapy or hormone therapy. Enzyme linked immunosorbent assays were used for the quantitative determination of the cancer associated antigens, CEA and MUC1 (CA15-3). Results: The serological levels of CEA and CA15-3 ($5.0033{\pm}0.49{\mu}g/L$ and $178.1667{\pm}15.11$ U/ml) in the breast cancer patients were significantly higher (p=0.00) than the serum levels of normal controls ($1.1237{\pm}0.11{\mu}g/L$ and $21.13{\pm}3.058$ U/ml). Regarding the CEA marker, a significant correlation with grade of tumor was shown. Furthermore, there was a low correlation between CA15-3 and CEA marker with correlation coefficient r=0.08. Conclusions: Collectively, markedly high levels of CEA and CA15-3 were found in our patients, pointing to their use as additional tools after clinical diagnosis.


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