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  • Title: p63 expression in odontogenic cysts.
    Author: Lo Muzio L, Santarelli A, Caltabiano R, Rubini C, Pieramici T, Fior A, Trevisiol L, Carinci F, Leonardi R, Bufo P, Lanzafame S, Piattelli A.
    Journal: Int J Oral Maxillofac Surg; 2005 Sep; 34(6):668-73. PubMed ID: 16053892.
    Abstract:
    A total of 123 cases of odontogenic cysts, distributed as follows: 30 follicular (FC), 35 radicular (RC), 53 keratocysts, 1 glandular odontogenic and 4 calcifying odontogenic cysts, were analysed by immunohistochemistry for expression of p63, a component of p53 protein family. In RCs p63 positivity was not only in basal and parabasal layers but also in the intermediate layer and about 1/3 of cases displayed a percentage of stained cells comprised between 0 and <5%, and about 2/3 between >5% and <50%. In FCs positivity was confined to basal and parabasal layers of the epithelium and in the majority of FCs the stained cells were comprised between 0 and <5%. OKCs displayed the most intense and diffuse p63 labeling. In conclusion, these data suggest that p63 expression may be useful to identify cysts type with more aggressive and invasive phenotype supporting the hypothesis of a suprabasal proliferative compartment in OKCs.
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