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  • Title: Fibroblast growth factor receptor expression in aural polyps: predictor of cholesteatoma?
    Author: Nair S, Watts S, Flood L.
    Journal: J Laryngol Otol; 2004 May; 118(5):338-42. PubMed ID: 15165306.
    Abstract:
    The cytokine, fibroblast growth factor (FGF) and its receptors (FGFR) have a pivotal role in wound repair and have been demonstrated in the perimatrix of active cholesteatoma. Aural polyps are a recognized inflammatory reaction of middle-ear mucosa to cholesteatoma, but may arise in its absence. This study examines 28 archival aural polyp specimens, seeking an increased expression for FGFR1 and FGFR3 in polyps associated with cholesteatoma, when compared with those arising in non-cholesteatomatous, mucosal disease, but produced a null result. There was no difference demonstrated in staining intensity between those polyps associated with cholesteatoma and those without. There was a strong correlation between staining patterns of FGFR1 and FGFR3 (r = 0.4, p <0.03). The expression pattern, of nuclear and perinuclear localization, may support the view that nuclear translocation of growth factors, and their receptors, could be related to the cellular proliferation that is associated with cholesteatoma.
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