gms | German Medical Science

GMS Current Posters in Otorhinolaryngology - Head and Neck Surgery

Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie e.V. (DGHNOKHC)

ISSN 1865-1038

Combined Therapy of two RTKs: Erbitux und BGJ398 treatment in HNSCC cell lines

Poster Onkologie

  • corresponding author Christin Geißler - Hals-Nasen-Ohrenklinik des Universitätsklinikums Frankfurt, Frankfurt/M.
  • Jennis Gabrielpillai - Hals-Nasen-Ohrenklinik des Universitätsklinikums Frankfurt, Frankfurt/M.
  • Stefan Stein - Georg Speyer Haus, Frankfurt/M.
  • Marc Diensthuber - Hals-Nasen-Ohrenklinik des Universitätsklinikums Frankfurt, Frankfurt/M.
  • Jens Wagenblast - Praxis, Sinsheim
  • Timo Stöver - Hals-Nasen-Ohrenklinik des Universitätsklinikums Frankfurt, Frankfurt/M.

GMS Curr Posters Otorhinolaryngol Head Neck Surg 2017;13:Doc229

doi: 10.3205/cpo001783, urn:nbn:de:0183-cpo0017830

Veröffentlicht: 26. April 2017

© 2017 Geißler et al.
Dieser Artikel ist ein Open-Access-Artikel und steht unter den Lizenzbedingungen der Creative Commons Attribution 4.0 License (Namensnennung). Lizenz-Angaben siehe



Head and neck squamous cell carcinoma (HNSCC) derive from the mucosa of the aerodigestive area and still have worse prognoses. Despite of new treatment strategies like the epithelial growth factor receptor (EGFR) antibody Erbitux the survival rates have not increased yet. The native mucosa expresses several receptor tyrosine kinases (RTKs) like EGFR and fibroblast growth factor receptors (FGFRs) that regulate survival and proliferation. We hypnotized that the tumor cells can switch between the different RTKs to overcome the therapy. To improve therapy in HNSCC, this study determined the effectiveness of a combined treatment targeting EGFR and FGFR.

In an in-vitro drug trial Detroit-562, CAL-27 and PJ-15 cell lines were studied. BGJ398 (Novartis) that inhibits FGFRs and/or Erbitux (Merck) treatment was performed. Apoptosis was verified by caspases activity. The expression of the different RTKs was determined by immunocytochemistry and flow cytometry.

The cell lines expressed EGFR, KGFR and low amounts of FGFR1 and FGFR3. In all tested cell lines, the treatment with BGJ398 or Erbitux significantly reduce survival and proliferation. The combination of both drugs enhanced the effect at lower concentrations compared to the single drug treatment.

This study demonstrated that the combination of BGJ-398 and Erbitux is a promising treatment regime for HNSCCs. In the future, the reduction in drug concentrations may reduce side effects.

Supported by: Novartis Pharma GmbH

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