1. Gene signatures in patients with early breast cancer and relapse despite pathologic complete response
- Author
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Simona Bruzas, Oleg Gluz, Nadia Harbeck, Peter Schmid, Javier Cortés, Jens Blohmer, Christine Seiberling, Ouafaa Chiari, Hakima Harrach, Beyhan Ataseven, Satyendra Shenoy, Mark H. Dyson, Eugen Traut, Ingo Theuerkauf, Daniel Gebauer, Sherko Kuemmel, Mattea Reinisch, Institut Català de la Salut, [Bruzas S] Interdisciplinary Breast Unit, Kliniken Essen-Mitte, Essen, Germany. [Gluz O] West German Study Group, Moenchengladbach, Germany. Breast Center Niederrhein, Evangelical Hospital Bethesda, Moenchengladbach, Germany. [Harbeck N] Breast Center, Dept. OB&GYN and CCCLMU, University of Munich (LMU), Munich, Germany. [Schmid P] Barts Cancer Institute, Queen Mary University London, London, United Kingdom. [Cortés J] International Breast Cancer Centre (IBCC), Quiron Group, Barcelona, Spain. Vall d’Hebron Institute of Oncology (VHIO), Barcelona, Spain. Medica Scientia Innovation Research (MEDSIR), Barcelona, Spain. Medica Scientia Innovation Research (MEDSIR), Ridgewood, NJ, USA. [Blohmer J] Klinik für Gynäkologie mit Brustzentrum, Charité-Universitätsmedizin Berlin, Berlin, Germany, and Vall d'Hebron Barcelona Hospital Campus
- Subjects
neoplasias::neoplasias por localización::neoplasias de la mama [ENFERMEDADES] ,neoplasias::procesos neoplásicos::recurrencia neoplásica local [ENFERMEDADES] ,Oncology ,Otros calificadores::Otros calificadores::/genética [Otros calificadores] ,Neoplasms::Neoplasms by Site::Breast Neoplasms [DISEASES] ,Other subheadings::Other subheadings::/genetics [Other subheadings] ,Neoplasms::Neoplastic Processes::Neoplasm Recurrence, Local [DISEASES] ,Mama - Càncer - Aspectes genètics ,Mama - Càncer - Recaiguda ,Pharmacology (medical) ,Radiology, Nuclear Medicine and imaging - Abstract
A substantial minority of early breast cancer (EBC) patients relapse despite their tumors achieving pathologic complete response (pCR) after neoadjuvant therapy. We compared gene expression (BC360; nCounter® platform; NanoString) between primary tumors of patients with post-pCR relapse (N = 14) with: (i) matched recurrent tumors from same patient (intraindividual analysis); and (ii) primary tumors from matched controls with pCR and no relapse (N = 41; interindividual analysis). Intraindividual analysis showed lower estrogen receptor signaling signature expression in recurrent tumors versus primaries (logFC = −0.595; P = 0.022). Recurrent tumors in patients with distant metastases also exhibited reduced expression of immune-related expression parameters. In interindividual analyses, primary tumor major histocompatibility complex class II expression was lower versus controls in patients with any relapse (logFC = −0.819; P = 0.030) or distant relapse (logFC = −1.151; P = 0.013). Primaries with later distant relapse also had greater homologous recombination deficiency than controls (logFC = 0.649; P = 0.026). Although no associations remained statistically significant following adjustment for false discovery rate, our results show that transcriptomic analyses have potential for prognostic value and may help in selecting optimal treatment regimens for EBC at risk of relapse and warrant further investigation.
- Published
- 2022