comscoreUnderstanding Your Immune System

Understanding Your Immune System

Your immune system is the network of organs, tissues, and cells that protect your body from foreign invaders such as bacteria, viruses, and fungi.

Your immune system is the network of organs, tissues, and cells that protect your body from foreign invaders such as bacteria, viruses, and fungi. When these find their way into the body — whether through a break in the skin, for example, or through your mouth or nose — your immune system’s response is the self-defense mechanism that works to keep you from getting sick.

If you’ve been diagnosed with breast cancer, you probably have questions about your immune system, such as:

  • Why didn’t my immune system stop the breast cancer from growing?

  • How will treatments for breast cancer affect my immune system?

  • Is there anything I can do to help my immune system (a) get rid of the breast cancer, (b) boost the treatments’ anticancer effects, and (c) lower the risk of recurrence?

The immune system is amazingly complex, and it’s still not fully understood. This section of Breastcancer.org provides an overview of the immune system, the potential impact of cancer treatments, and ways to protect yourself when your immune system is weakened. It also suggests some strategies you can follow to help maintain your immune system’s function before, during, and after treatment. Finally, this section talks about some breast cancer treatments, such as Herceptin (chemical name: trastuzumab), that are designed to target breast cancer cells in the same way that the immune system normally targets foreign materials.

 

Using the immune response to treat breast cancer

Researchers are working to create new treatments that use the immune response to target cancer cells. As a group, these treatments are called biological therapies or immunotherapies.

For more information, visit the Immunotherapy page.

— Last updated on January 31, 2022, 8:49 PM