Immunolocalization of epidermal growth factor (EGF) in human salivary glands detected with the new monoclonal antibody.

Epidermal growth factor (EGF) is biologically active peptide commonly seen in many human tissues and organs. Its high concentration has been found in the salivary glands. The purpose of the present study was to determine EGF immunolocalization in normal human major salivary glands using a new monoclonal antibody anti-EGF. The results were compared with EGF location determined by using two human antibodies (Oncogene, USA and ICI from dr Gregory, UK). Immunohistochemical studies were performed by the PAP method. All antibodies demonstrated EGF expression in the efferent pathways of the salivary glands, especially in their proximal segments.