Oral squamous cell carcinoma develops through a series of precancerous stages manifested at the microscopic level as epithelial dysplasia. Mutation of the p53 tumour suppressor gene is thought to be an important component of oral carcinogenesis. p53 regulates cell proliferation and DNA repair by inh
The effect of topical corticosteroids on Ki67 and p53 expression in vulval lichen sclerosus
โ Scribed by K.J. Rolfe; J.C. Crow; W.M.N. Reid; E. Benjamin; A.B. MacLean; C.W. Perrett
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 101 KB
- Volume
- 147
- Category
- Article
- ISSN
- 0007-0963
No coin nor oath required. For personal study only.
โฆ Synopsis
Background:
Topical corticosteroids have become the treatment of choice for genital lichen sclerosus (ls) and are believed to be required for long-term relief of symptoms.
Objective:
To compare vulval ls that had been treated with topical corticosteroids, vulval ls that had not received topical corticosteroids, and histologically normal vulval skin.
Methods:
We used immunohistochemistry to look for ki67 expression and abnormal p53 expression.
Results:
We found a statistically significant difference for p53 overexpression, with increased levels seen when comparing corticosteroid-treated ls with normal genital skin (p = 0.011). ki67 expression was also significantly higher in the corticosteroid-treated group compared with normal genital skin (p = 0.001), and increased levels were also found in the treated group compared with untreated ls (p = 0.05).
Conclusions:
Our data suggest that topical corticosteroids have an effect on cell cycle proteins in genital skin and, in particular, genital skin with ls changes.
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