Detection of disseminated tumor cells from the bone marrow of patients with early breast cancer is associated with high 21-gene recurrence score
High 21-gene recurrence score (RS) is associated with an impaired prognosis in patients with HR-positive/HER2-negative early breast cancer (EBC) and predictive of response to adjuvant chemotherapy. Detection of disseminated tumor cells (DTCs) in the bone marrow is a surrogate of minimal residual dis...
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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
25 February 2016
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| In: |
Breast cancer research and treatment
Year: 2016, Volume: 156, Issue: 1, Pages: 91-95 |
| ISSN: | 1573-7217 |
| DOI: | 10.1007/s10549-016-3728-9 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/s10549-016-3728-9
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| Author Notes: | Andreas D. Hartkopf, Markus Wallwiener, Stefan Kommoss, Florin-Andrei Taran, Sara Y. Brucker |
| Summary: | High 21-gene recurrence score (RS) is associated with an impaired prognosis in patients with HR-positive/HER2-negative early breast cancer (EBC) and predictive of response to adjuvant chemotherapy. Detection of disseminated tumor cells (DTCs) in the bone marrow is a surrogate of minimal residual disease and of prognostic value. The aim of this study was to compare DTC detection with the 21-gene RS. DTCs were identified in bone marrow aspirates of HR-positive/HER2-negative EBC patients by immunocytochemistry (pancytokeratin antibody A45-B/B3) and cytomorphology at primary surgery. The 21-gene RS was assessed in paraffin-embedded tumor tissue samples using Oncotype DX (Genomic Health). A total of 114 patients were included in this study. DTCs were detected in 13 of these (11 %). Of the women with a low RS (<18), 5/75 (7 %) were DTC positive. Of the women with an intermediate/high RS (≥18), 8/39 (21 %) were DTC positive (p = 0.03, Chi-squared test). The median RS in DTC-negative patients was significantly lower as compared to DTC-positive patients (15 vs. 20, p = 0.04, Mann-Whitney U test). In conclusion, detection of DTCs in patients with EBC is associated with high 21-gene recurrence score. These findings are meaningful for further basic research that aims to investigate the biological mechanism of tumor cell spread and cancer progression and may have prognostic and/or predictive clinical implications that should be evaluated in future clinical trials. |
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| Item Description: | Gesehen am 30.04.2020 |
| Physical Description: | Online Resource |
| ISSN: | 1573-7217 |
| DOI: | 10.1007/s10549-016-3728-9 |