2018
DOI: 10.1369/0022155418761652
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Association Between Fibroblast Growth Factor Receptor 1 Gene Amplification and Human Papillomavirus Prevalence in Tonsillar Squamous Cell Carcinoma With Clinicopathologic Analysis

Abstract: Amplification of fibroblast growth factor receptor 1 ( FGFR1) has been reported in many squamous cell carcinomas, and human papillomavirus (HPV)-related oropharyngeal squamous cell carcinoma has been characterized as a distinct subset with favorable prognosis. Here, we investigated the FGFR1 amplification and HPV status in tonsillar squamous cell carcinoma (TSCC) and analyzed the clinical characteristics. HPV in situ hybridization (HPV ISH) and FGFR1 fluorescence in situ hybridization (FISH) were performed usi… Show more

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Cited by 4 publications
(5 citation statements)
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“…E5 also blocks degradation of EGFR proteins, perhaps by manipulation of the cytoskeleton or decreasing acidity inside of lysosomes [40]. Amplification of other growth factors, namely fibroblast growth factor receptor 1, has been implicated in pathogenesis of tonsillar SCC, but this is not limited to HPV-positive cases [60]. Additionally, E5 down regulates CD-1d and MHC to avoid identification by natural killer cells and cytotoxic T cells [45].…”
Section: Cellullar Mechanisims Of Hpv-mediated Oropharyngeal Carcinog...mentioning
confidence: 99%
“…E5 also blocks degradation of EGFR proteins, perhaps by manipulation of the cytoskeleton or decreasing acidity inside of lysosomes [40]. Amplification of other growth factors, namely fibroblast growth factor receptor 1, has been implicated in pathogenesis of tonsillar SCC, but this is not limited to HPV-positive cases [60]. Additionally, E5 down regulates CD-1d and MHC to avoid identification by natural killer cells and cytotoxic T cells [45].…”
Section: Cellullar Mechanisims Of Hpv-mediated Oropharyngeal Carcinog...mentioning
confidence: 99%
“…28 The prognostic value of FGFR1 amplification in HNSCC is debatable, and recently, more studies reported that FGFR1 amplification is not related to patient overall survival. 29,30 One of the plausible explanations is that FGFR1 amplification is not associated with FGFR1 expression level. 25,30 On the other hand, FGFR1 overexpression has been observed in ~10% to 82% of HNSCC patients, 26,31,32 and there is no difference in FGFR1 expression between HPV-positive and HPV-negative HNSCC patients.…”
Section: Fgfr1 Amplification and Overexpressionmentioning
confidence: 99%
“…29,30 One of the plausible explanations is that FGFR1 amplification is not associated with FGFR1 expression level. 25,30 On the other hand, FGFR1 overexpression has been observed in ~10% to 82% of HNSCC patients, 26,31,32 and there is no difference in FGFR1 expression between HPV-positive and HPV-negative HNSCC patients. 25 However, at present, conflicting results in terms of FGFR1 expression as a prognosis biomarker have been reported.…”
Section: Fgfr1 Amplification and Overexpressionmentioning
confidence: 99%
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“…E5 also blocks degradation of EGFR proteins, perhaps by manipulation of the cytoskeleton or decreasing acidity inside of lysosomes [31]. Amplification of other growth factors, namely fibroblast growth factor receptor 1, has been implicated in pathogenesis of tonsillar SCC, but this is not limited to HPV-positive cases [44].…”
Section: Cellullar Mechanisims Of Hpv-mediated Oropharyngeal Carcinog...mentioning
confidence: 99%