@article{LuxSchneeweissHartkopfetal.2021,
  author    = {Lux, Michael P. and Schneeweiss, Andreas and Hartkopf, Andreas D. and M{\"u}ller, Volkmar and Janni, Wolfgang and Belleville, Erik and Stickeler, Elmar and Thill, Marc and Fasching, Peter A. and Kolberg, Hans-Christian and Untch, Michael and Harbeck, Nadia and W{\"o}ckel, Achim and Thomssen, Christoph and Schulmeyer, Carla E. and Welslau, Manfred and Overkamp, Friedrich and Sch{\"u}tz, Florian and L{\"u}ftner, Diana and Ditsch, Nina},
  title     = {Update Breast Cancer 2020 Part 5 - Moving Therapies From Advanced to Early Breast Cancer Patients},
  series = {Geburtshilfe und Frauenheilkunde},
  volume    = {81},
  journal   = {Geburtshilfe und Frauenheilkunde},
  doi       = {10.1055/a-1397-7170},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-369989},
  pages     = {469-480},
  year      = {2021},
  abstract  = {In recent years, significant progress has been made in new therapeutic approaches to breast cancer, particularly in patients with HER2-positive and HER2-negative/hormone receptor-positive (HR+) breast cancer. In the case of HER2-positive tumours, these approaches have included, in particular, treatment with pertuzumab, T-DM1, neratinib and, soon, also tucatinib and trastuzumab deruxtecan (neither of which has yet been authorised in Europe). In patients with HER2-/HR+ breast cancer, CDK4/6 inhibitors and the PIK3CA inhibitor alpelisib are of particular importance. Further novel therapies, such as Akt kinase inhibitors and oral SERDs (selective estrogen receptor down regulators), are already being investigated in ongoing clinical trials. These therapeutic agents are not only being introduced into curative, (neo-)adjuvant therapeutic settings for HER2-positive tumours; a first favourable study on abemaciclib as an adjuvant therapy has now also been published. In patients with triple-negative breast cancer, after many years of negative study results with the Trop-2 antibody drug conjugate (ADC) sacituzumab govitecan, a randomised study has been published that may represent a significant therapeutic advance. This review describes the latest developments in breast cancer subsequent to the ESMO Congress 2020.},
  language  = {en}
}
@article{SchulmeyerFaschingHaeberleetal.2023,
  author    = {Schulmeyer, Carla E. and Fasching, Peter A. and H{\"a}berle, Lothar and Meyer, Julia and Schneider, Michael and Wachter, David and Ruebner, Matthias and P{\"o}schke, Patrik and Beckmann, Matthias W. and Hartmann, Arndt and Erber, Ramona and Gass, Paul},
  title     = {Expression of the immunohistochemical markers CK5, CD117, and EGFR in molecular subtypes of breast cancer correlated with prognosis},
  series = {Diagnostics},
  volume    = {13},
  journal   = {Diagnostics},
  number    = {3},
  issn      = {2075-4418},
  doi       = {10.3390/diagnostics13030372},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-304987},
  year      = {2023},
  abstract  = {Molecular-based subclassifications of breast cancer are important for identifying treatment options and stratifying the prognosis in breast cancer. This study aimed to assess the prognosis relative to disease-free survival (DFS) and overall survival (OS) in patients with triple-negative breast cancer (TNBC) and other subtypes, using a biomarker panel including cytokeratin 5 (CK5), cluster of differentiation 117 (CD117), and epidermal growth factor receptor (EGFR). This cohort-case study included histologically confirmed breast carcinomas as cohort arm. From a total of 894 patients, 572 patients with early breast cancer, sufficient clinical data, and archived tumor tissue were included. Using the immunohistochemical markers CK5, CD117, and EGFR, two subgroups were formed: one with all three biomarkers negative (TBN) and one with at least one of those three biomarkers positive (non-TBN). There were significant differences between the two biomarker subgroups (TBN versus non-TBN) in TNBC for DFS (p = 0.04) and OS (p = 0.02), with higher survival rates (DFS and OS) in the non-TBN subgroup. In this study, we found the non-TBN subgroup of TNBC lesions with at least one positive biomarker of CK5, CD117, and/or EGFR, to be associated with longer DFS and OS.},
  language  = {en}
}