Summary
Recently, regional changes of cytokeratin patterns in human normal non-keratinized or keratinized oral mucosa have been demonstrated and the expression of individual cytokeratin polypeptides in lesions of oral mucosa has been compared with that of normal tissues. In particular, the presence of cytokeratin 19 in the suprabasal cell layers of oral epithelia has been shown to be strongly correlated with premalignancy. In the present study, we describe the results of an immunohistochemical investigation performed using a monoclonal antibody specific for cytokeratin 1 on normal oral mucosa and benign or malignant oral lesions. We show the different distribution of this polypeptide in non-neoplastic lesions from different sites of oral mucosa and describe the presence of cytokeratin 19. Our results are in agreement with the data obtained previously. In the malignant cases we demonstrate that the distribution of the two cytokeratins is characterized by complementary patterns.
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Cintorino, M., Petracca, R., Vindigni, C. et al. Topography-related expression of individual cytokeratins in normal and pathological (non-neoplastic and neoplastic) human oral mucosa. Vichows Archiv A Pathol Anat 417, 419–426 (1990). https://doi.org/10.1007/BF01606030
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DOI: https://doi.org/10.1007/BF01606030