TRASTUZUMAB AS MONOCLONAL ANTIBODY; INHIBITOR OF HUMAN EPIDERMAL GROWTH FACTOR RECEPTOR-2 PROTEIN KINASE FOR BREAST CANCER
*Dr. Dhrubo Jyoti Sen, Dr. Pruthviraj K. Chaudhary and Shloka Vijaykumar Chaudhary
ABSTRACT
Trastuzumab is a targeted (biological) therapy. Targeted therapies block the growth and spread of cancer. They target and interfere with processes in the cells that help cancer grow. It is a biologic agent primarily used to treat HER2-positive breast cancer and may be used as adjuvant therapy for localized disease or as first-line treatment for metastatic disease. The inhibition of the hyperactive HER2 protein kinase receptor by trastuzumab in HER2+ breast cancer cells can be partly considered an immunotherapy strategy, since the monoclonal antibody (mAb) mechanism of action includes an immune-mediated component. HER2-positive breast cancer is a breast cancer that tests positive for a protein called human epidermal growth factor receptor 2 (HER2). This protein promotes the growth of cancer cells.
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