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  • Title: Fibroblast growth factor receptor-1 as a potential therapeutic target in sinonasal cancer.
    Author: Schröck A, Göke F, Wagner P, Bode M, Franzen A, Huss S, Agaimy A, Ihrler S, Kirsten R, Kristiansen G, Bootz F, Lengerke C, Perner S.
    Journal: Head Neck; 2014 Sep; 36(9):1253-7. PubMed ID: 23913758.
    Abstract:
    BACKGROUND: Despite multimodal treatment, sinonasal malignancies have an unfavorable prognosis. The purpose of this study was to elucidate if these tumors harbor amplifications of the fibroblast growth factor receptor 1 (FGFR1) gene, which has recently been identified as a potential therapeutic target in squamous cell lung cancer. METHODS: One hundred twelve primary tumors (including squamous cell carcinoma [SCC], carcinoma associated with an inverted papilloma, sinonasal undifferentiated carcinoma [SNUC], adenocarcinoma, adenoid cystic carcinoma [ACC], esthesioneuroblastoma, and 9 corresponding lymph node metastases) were assessed by fluorescence in situ hybridization (FISH) for FGFR1 copy number status. Human papillomavirus (HPV) status was assessed by p16 immunohistochemical as a surrogate marker. RESULTS: FGFR1 amplification was found in subsets of sinonasal SCCs (20%), carcinomas associated with an inverted papilloma (33%), and SNUCs (5%). In all cases, metastatic tumor samples shared the same FGFR1 amplification status as the corresponding primary tumor tissue. None of the FGFR1-amplified tumors expressed p16. CONCLUSION: FGFR1 amplification represents a potential molecular target in a subset of patients with sinonasal cancer. © 2014 Wiley Periodicals, Inc. Head Neck 36: 1253-1257, 2014.
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