期刊
BREAST CANCER RESEARCH AND TREATMENT
卷 117, 期 3, 页码 525-534出版社
SPRINGER
DOI: 10.1007/s10549-008-0239-3
关键词
HER2 mRNA; Breast cancer; Circulating tumor cells; Prognosis
类别
资金
- Cretan Association for Biomedical Research (CABR)
- Pfizer Hellas
- European Social Fund and National Resources
To evaluate whether HER2 mRNA could be used as a marker of circulating tumor cells (CTCs) in women with operable breast cancer. A nested RT-PCR assay was developed and used for the detection of HER2 mRNA-positive CTCs. Blood from 216 women with early breast cancer obtained before adjuvant treatment was tested for HER2 mRNA-positive cells to assess their prognostic value. Nested RT-PCR for HER2 mRNA showed high sensitivity whereas no HER2 mRNA-positive cells could be identified in the blood of healthy donors. HER2 mRNA-positive CTCs were detected in 53 (24.5%) of 216 patients and HER2 mRNA detection was associated with reduced disease-free survival (DFS; P < 0.0001) and overall survival (OS; P = 0.004). In multivariate analysis, detection of HER2 mRNA-positive CTCs emerged as independent prognostic factor for DFS (P = 0.0001) and OS (P = 0.003). HER2 mRNA could be a valuable prognostic marker for the detection of CTCs in early breast cancer patients.
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