Akusherstvo i ginekologiia · 2009
[The expression of p16(INK4a) and Ki-67 in atrophic-hyperplastic and dysdysplastic lesions of the vulva].
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Gincheva D, Tomov C, Gorchev G, Nikolova M
Аннотация
UNLABELLED: The aim of present study is to investigate the immunohistochemical expression of tumor suppressor gene p16(INK4a) and proliferative marker Ki-67 in dysplastic vulvar lesions and nondysplastic ones.
MATERIALS AND METHODS: 30 female patients (mean age = 49.5 +/- 4.5) - Ca in situ (n = 2), VIN (n = 10), lichen sclerorosus (n = 8), squamous cell hyperplasia (n = 1), mixed vulvar dystrophy (n = 5), papilloma (n = 1), condyllomata accuminata (n = 3) are separated into two groups (first group of non-dysplastic- and second group of dysplastic lesions). The immunohistochemical method with monoclonal antibody for identification of p16(INK4a) and Ki-67 was applied.
RESULTS: P16(INK4a) is expressed in 1 patient (5.56%) in first group and in 8 patients (66.67%) in second group (chi2 = 84.93; p < 0.001). Ki-67 is positive in 4 patients (22.22%) in first group and in 12 of cases (100%) in second group (chi2 = 41.3; p < 0.001).
CONCLUSIONS: There is a significant statistical difference between immunohistochemical expression of p16(INK4a) and Ki-67 in HPV-associated dysplastic and non-dysplastic vulvar lesions.
MATERIALS AND METHODS: 30 female patients (mean age = 49.5 +/- 4.5) - Ca in situ (n = 2), VIN (n = 10), lichen sclerorosus (n = 8), squamous cell hyperplasia (n = 1), mixed vulvar dystrophy (n = 5), papilloma (n = 1), condyllomata accuminata (n = 3) are separated into two groups (first group of non-dysplastic- and second group of dysplastic lesions). The immunohistochemical method with monoclonal antibody for identification of p16(INK4a) and Ki-67 was applied.
RESULTS: P16(INK4a) is expressed in 1 patient (5.56%) in first group and in 8 patients (66.67%) in second group (chi2 = 84.93; p < 0.001). Ki-67 is positive in 4 patients (22.22%) in first group and in 12 of cases (100%) in second group (chi2 = 41.3; p < 0.001).
CONCLUSIONS: There is a significant statistical difference between immunohistochemical expression of p16(INK4a) and Ki-67 in HPV-associated dysplastic and non-dysplastic vulvar lesions.