Some breast cancers can be categorized as estrogen receptor-positive, also known as, hormone receptor-positive. This
means that estrogen contributes to the growth and spread of the cancer. When the supply of estrogen is blocked,
breast cancer cells may not be able to multiply so that tumors can’t grow. FASLODEX is a treatment option that works by
blocking hormone receptors. Learn more about FASLODEX and see how it works.
Hormonal treatments are often
used to treat hormone receptor-positive breast cancer. They work by blocking the
effects of estrogen on breast cancer cells, or by reducing the amount of estrogen
produced by the body.
How estrogen affects breast cancer
Estrogen does not cause breast cancer, although it may promote the growth of some
tumors. Here's how certain breast cancer cells live and grow with the help of estrogen.
Estrogen finds a specialized receiver in a cell, called a receptor. Estrogen attaches
itself to estrogen receptors. These receptors take the estrogen and bring it into
the center of the cancer cell (the nucleus) so that estrogen can give the signal
for the tumor to grow. The result: cancer cells grow and divide to form more cells.
Learn more about metastatic breast