Breast cancer treatment with targeted therapy

The main feature of targeted breast cancer therapy is the effect of drugs on intracellular mechanisms affecting tumor growth. It does not block the growth of cancer cells as a whole but a specific receptor on their surface, responsible for constant division. Targeted therapy attacks only tumor cells without damaging normal tissues. Cancer cells are different from healthy ones. They have changes in genes and proteins that "tell" the cell how to function. Targeted therapies use these mutations to interfere with cancer cells' growth, division, or spread. The targeted drug can block the signals that "tell" the cancer cell what to do. For example, some targeted medications stop the supply of oxygen and nutrients to breast cancer cells through blood vessels. Regardless of the action method, the primary therapy goal is to disrupt the function of cancer cells so they cannot grow and survive. Before starting the therapy, the patient is examined with a histological and molecular genetic tumor analysis to prescribe the most appropriate drug. In breast cancer, targeted therapy is prescribed as an intravenous solution. It is injected slowly intravenously for 0. 5–1. 5 hours. It can be injected simultaneously with chemotherapy drugs.