What to Know About HER2-negative Breast Cancer

Home Blog What to Know About HER2-negative Breast Cancer

HER2 stands for human epidermal growth factor receptor 2. It can refer to either the HER2 gene or protein HER2. HER2 proteins are receptors that sit on the surface of breast cells and usually help control the growth and repair of healthy breast tissue. 

If the HER2 gene becomes faulty and starts making multiple copies of itself, it results in an overproduction of HER2 proteins on the surface of the breast cells and can result in HER2-positive cancer.

HER2-negative breast cancer can be based on the presence or absence of the hormone receptors on the surface of cancer cells.

Read the full outline of the differences from Medical News Today.

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