Her-2 (neu) | Human Epidemic Growth Factor Receptor/Neuroblastoma-Her-2/neu (Breast Cancer Marker)

Human Epidemic Growth Factor Receptor/neuroblastoma-Her-2/neu (Breast Cancer Marker) - This marker, an oncoprotein, is detected in breast cancer (or other tissue) biopsy material. It is appropriate to determine only in the cells of cancerous tissue. Approximately 25-30% of breast and ovarian cancers express Her-2/neu. If breast cancer cells are characterized by a well-expressed Her-2/neu expression (hyperexpression), they grow and metastasize somewhat more aggressively.