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Lookup NU author(s): Emerita Professor Janet Wilson
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Premalignant conditions affect the larynx. Dysplasia can progress in severity resulting in cancer depending on many clinical, pathological and molecular factors. The purpose of this study was to examine the expression of the p21 and p27 cyclin-dependent kinase inhibitors and p53 tumour suppressor gene in dysplasia of the larynx. A total of 114 cases of untreated dysplasia were selected from the archives of the University of Newcastle. p21, p27 and p53 immunohistochemistry was performed and the cases followed up. Twenty-eight dysplasias (24%) subsequently developed into cancers. Expression of the molecular factors studied was not associated with cancer progression. p53 expression was associated with smoking (P = 0.005). In contrast, grade of dysplasia was significantly associated with cancer risk (odds ratio 6.7; P = 0.0001). The majority (75%) of cancers were detected within 12 months of dysplasia being diagnosed.
Author(s): Jeannon J-P, Soames JV, Aston V, Stafford FW, Wilson JA
Publication type: Article
Publication status: Published
Journal: Clinical Otolaryngology and Allied Sciences
ISSN (print): 0307-7772
ISSN (electronic): 1749-4486
PubMed id: 15533163
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