Alternative Name(s): Neu, Erb-B2, CD340 or p185

HER2 (Herceptest)

Test Description

HER2 (Human Epidermal Growth Factor Receptor 2) is a protein that in humans is encoded by the ERBB2 gene. HercepTest™ is a semi-quantitative immunohistochemical assay for the determination of HER2 protein overexpression in breast cancer tissues. This assay is FDA-approved as an aid in the assessment of patients who are considered for treatment with Herceptin.