<prompt> In breast cancer Her-2Neu helps by the following mechanism?OverexpressionSuppressionMutationTranslocation  <response>: Ans. is a i.e., Overexpression HER2 from human epidermal growth factor receptor 2 or HER2neu or ERBB2 gene which encodes for Receptor tyrosine-protein kinase erbB-2, also known as CD340, is a member of the human epidermal growth factor receptor HEREGFRERBB family. Amplification or over-expression of this oncogene has been shown to play an important role in the development and progression of certain aggressive types of breast cancer. Other cancers associated with this gene ovarian cancer, lung cancer, stomach cancer oral cancer. 