HER2

HER2 stands for human epidermal growth factor receptor. It is a protein found in small amounts on normal breast cells. It is one of the proteins involved in cell growth. About a quarter of breast cancers have too much of this protein - they are said to be HER2 positive.
Found on http://www.cancerhelp.org.uk/utilities/glossary/index.htm?search=h

HER2

HER2: Abbreviation for human epidermal growth factor receptor 2. HER2 is expressed by, and involved in the growth of, some cancer cells. For example, a minority of breast cancers express HER2 protein. Also called c-erbB-2.
Found on http://www.medterms.com/script/main/art.asp?articlekey=16563

HER2

(human epidermal growth factor receptor 2) A protein involved in the growth of cells. Around 20% of breast cancers have higher than normal levels of HER2 (known as HER2 positive) which stimulates them to grow.
Found on http://www.breastcancercare.org.uk/breast-cancer-information/glossary
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