Learn About Different Types of Immunotherapy for Cancer

The immune system plays an important role in identifying abnormal cells, but cancer cells can sometimes avoid or weaken immune responses. Immunotherapy uses different methods to improve, direct, or restore the body's immune activity against cancer. The type of immunotherapy recommended can vary according to the cancer involved and other medical considerations.

Learn About Immune Based Treatments That Help Recognize Cancer

One major category of immunotherapy includes treatments designed to help immune cells better identify and respond to cancer cells. Some cancer cells use biological signals to reduce immune activity, allowing them to remain less visible to the body's natural defenses. Certain immunotherapies are designed to affect these signals and support immune responses.

• Immune checkpoint inhibitors block specific proteins that can limit the activity of immune cells. They are used for several types of cancer, although their suitability depends on individual clinical factors.
• Monoclonal antibodies are laboratory developed proteins designed to attach to specific targets associated with cancer cells. Some can mark cancer cells so the immune system can recognize them more effectively.
• Immune system modulators may stimulate or adjust immune activity. These treatments can influence how the immune system responds and may be used in specific cancer treatment settings.

These approaches do not work in the same way for every person or cancer type. Healthcare professionals may consider factors such as tumor characteristics, biomarkers, previous treatments, and overall health when evaluating possible treatment options.

Learn About Cell Therapy and Cancer Treatment Vaccines

Another group of immunotherapy approaches involves modifying or directing immune cells to respond more specifically to cancer. These treatments are often more specialized and may require detailed testing, preparation, and monitoring.

• CAR T cell therapy involves collecting certain T cells from a patient and modifying them in a laboratory so they can better recognize specific cancer cells. The modified cells are then returned to the patient's body.
• Tumor infiltrating lymphocyte therapy uses immune cells that have entered a tumor. In some cases, these cells can be collected, increased in number, and prepared for use as part of treatment.
• Cancer treatment vaccines are different from vaccines used to prevent infectious diseases. They are designed to stimulate an immune response against particular cancer related targets or cells.
• Oncolytic virus therapy uses specially developed viruses that may infect certain cancer cells and also encourage an immune response against the tumor.

Immunotherapy can produce different responses and may also cause side effects related to immune system activity. In some cases, the immune system may affect healthy tissues, which is why regular medical monitoring is important during treatment. Patients can discuss the purpose, possible benefits, limitations, and potential side effects of a recommended immunotherapy with their oncology team. Understanding the different types of immunotherapy provides useful information about the range of immune based approaches currently used in cancer care.