Expression of Epidermal Growth Factor, Transforming Growth Factor-αand Epidermal Growth Factor Receptor in Human Pituitary Tumors / 中国肿瘤临床

Objective:To explore the mechanism of growth factor autocrine stimulation in human pituitary tumors. Method: Immunohistochemical analyses of EGF、TGF-αand EGFR were studied on paraffin-embeded sections of 30 pituitary tumors. Results: Expression of EGFR and its ligand EGF、TGF-αhas a variable stained cells intensity,density and type. EGFR and the ligands expressed in majority of pituitary tumors.Conclusion:The EGF autocrine stimulation exists in pituitary tumors,and tyrosine kinases inhibitors may be useful for pituitary tumors treatment.