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Evaluation of individual sensitivity of head and neck squamous cell carcinoma to cetuximab by short-term culture of tumor slices
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International audience. Background. Cetuximab is a targeted therapy with demonstrated efficacy in the management of head and neck squamous cell carcinoma (HNSCC). However, no laboratory assay is available to predict its efficacy in an individual patient. Methods. Short-term cultures of tumor slices were performed on 9 tumor samples obtained after surgical resection in patients. Cancer cell proliferation was evaluated by immunohistochemistry and the impact of cetuximab on cell proliferation was examined. Results. Tumor architecture and the heterogeneous composition of HNSCC were preserved for at least 48 hours during short-term culture of tumor slices. HNSCC cells demonstrated a heterogeneous individual response to cetuximab. Conclusion. Short-term culture of tumor slices is a strategy to estimate the clinical activity of cetuximab in individual patients with HNSCC. Further studies are required to correlate the results obtained with the clinical response of individual patients to cetuximab. (c) 2015 Wiley Periodicals, Inc.
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