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[Cell oncogene expression in normal, metaplastic, dysplastic epithelium and squamous cell carcinoma of the uterine cervix].

Immunohistochemical analysis of the protein expression c-myc, ets 1, ets 2, TPR-met, c-fos, c-jun, c-ras-pan, p53, yes, src in 79 samples of normal, metaplastic squamous epithelium, intraepithelial and invasive squamous cell carcinoma of uterine cervix was performed using polyclonal rabbit antibodies to the synthetic peptides homologous active areas of corresponding oncoproteins. Higher content of myc, fos, ets2, p53, ras is noted in metaplasia, dysplasia and in tumours as compared to the normal tissues. Protein myc is revealed in the cytoplasm at a grave dysplasia and in the nucleus in the intraepithelial carcinoma: this may serve as a criterion at a differential diagnosis of these conditions. Expression of the oncoproteins fos, ets2, p53, src in the metaplastic squamous cell carcinoma was higher than in the true squamous cell (ectocervical) carcinoma. When compared to the advanced carcinomas, increase of ets2, p53, and at some degree that of myc, the increase is noted in the latter. Invasive carcinoma with a high level of oncoproteins showed a tendency to the synchronization of myc and ras expression. Poor prognosis was associated with a low level (before treatment) of the expression of the majority of the oncoproteins studied.