Human oral epithelial lesions examined for increased p-S6 and Laminin γ2 by immunohistochemical staining.

Formalin-fixed, paraffin-embedded specimens of oral lesions were immunostained for p-S6(S235), p-S6(S240), and Lamγ2 and the percentage of the total dysplasia positive in the basal cell layer for these markers determined as described in Methods. Basal layer p-S6(235) and p-S6(240) immunostaining always corresponded precisely. n.d.: not determined.