[The role of p53 gene during the development of human oral malignant lesions: a comparative study of p53 gene mutation with P53 protein positive immunostaining].

Abstract excerpt

In order to increase the sensitivity to immunostaining in formalinfixed, paraffin-embedded tissues, we developed an immunohistochemical method by microwave heating of tissue sections instead of trypsin digestion. The results of this study showed that there was no positive P53 protein reaction in normal and hyperplastic mucousa of human mouth, whereas 90% (27/30) of cases with dysplasia, 61% (30/49) of oral...

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