Abstract P4-09-15: Preoperative TPS as Valuable Prognostic Marker for Breast Cancer

BACKGROUND: Several serum markers are used in management of breast cancer patients. Among these, tissue polypeptide specific antigen (TPS) has been recently proposed as a potential new marker for breast cancer. METHODS: We reviewed the records of 2247 patents with breast cancer treated between November 2000 and December 2007. We evaluated the association between clinicopathologic features and recurrence free survival with preoperative TPS. RESULTS: Among 2271 breast cancer patients, elevated preoperative TPS level (TPS>80 U/L) were identified in 479 patients (21.1%). Age (>45), tumor size (>2cm), tumor stage, nodal metastasis, progesterone receptor, Ki-67, recurrence and visceral metastasis were associated with elevated TPS levels. 193 patients had evidence of relapse. Elevated TPS were associated with poor recurrence free survival. ( P On a multivariate analysis with using the Cox model, nodal metastasis, estrogen receptor, Ki-67, histologic grade and elevated TPS(p=0.053) were independent prognostic factors for recurrence free survival. CONCLUSION: Elevated preoperative TPS levels are associated with poor breast cancer outcome. Preoperative TPS can be a valuable prognostic marker for breast cancer. Figure available in online version. Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr P4-09-15.