[Expression of deltaNp63 in salivary gland tumours].

Objective: To detect the expression of deltaNp63 in human salivary gland tumor and analyze its role in the malignant salivary gland tumors.
Methods: Collecting the samples from 68 cases of pathologically proven salivary gland tumours and investigating the microscopic sections with HE stain and immunohistochemical-SP stain.
Results: It was found that the expression of deltaNp63 is gradually increased in the malignant tumours, the myoepithelial cells and the basal cells of the salivary gland tumors are positive, and the expression of deltaNp63 is correlated directly with benign and malignant tumor.
Conclusion: deltaNp63 plays an important role in salivary gland tumours. deltaNp63 possesses some special activity that is characteristic of oncogene. p63 is a sensitive and highly specific marker of myoepithelial cells in salivary gland tumours and an additional marker for defining myoepithelial histogenesis. p63 is of definite clinical value in falicitating diagnosis and differential diagnosis.