Carbohydrate antigens in nipple aspirate fluid predict the presence of atypia and cancer in women requiring diagnostic breast biopsy
1 University of Missouri Departments of Biochemistry, One Hospital Drive, Columbia, MO 65212, USA
2 University of Missouri, Department of Biostatistics, One Hospital Drive, Columbia, MO 65212, USA
3 The Harry S. Truman Veteran's Administration, 800 Hospital Drive, Columbia MO 65201, USA
4 Royal Marsden NHS Foundation Trust, Fulham Road, London SW3 6JJ, UK
5 University of North Dakota, Center for Health Promotion and Prevention Research 501 N. Columbia Rd., Grand Forks, ND 58202, USA
6 University of North Dakota, Department of Surgery, 501 N. Columbia Rd., Grand Forks, ND 58202, USA
BMC Cancer 2010, 10:519 doi:10.1186/1471-2407-10-519Published: 1 October 2010
The goal of this prospective study was to determine (a) concentrations of the carbohydrate biomarkers Thomsen Friedenreich (TF) antigen and its precursor, Tn antigen, in nipple discharge (ND) collected from women requiring biopsy because of a suspicious breast lesion; and (b) if concentration levels predicted pathologic diagnosis.
Adult women requiring biopsy to exclude breast cancer were enrolled and ND obtained. The samples from 124 women were analyzed using an anti-TF and anti-Tn monoclonal antibodies in direct immunoassay.
The highest median concentration in ND for TF and Tn was in women with ductal carcinoma in situ (DCIS). TF was higher in women with 1) cancer (DCIS or invasive) vs. either no cancer (atypia or benign pathology, p = .048), or benign pathology (p = .018); and 2) abnormal (atypia or cancer) versus benign pathology (p = .016); and was more predictive of atypia or cancer in post- compared to premenopausal women. Tn was not predictive of disease. High TF concentration and age were independent predictors of disease, correctly classifying either cancer or abnormal vs. benign pathology 83% of the time in postmenopausal women.
TF concentrations in ND were higher in women with precancer and cancer compared to women with benign disease, and TF was an independent predictor of breast atypia and cancer. TF may prove useful in early breast cancer detection.