T-cells are the warriors of our immune systems, attacking diseases as they attempt to multiply and spread. So how to explain cancer, in which "bad" cells within the body continue to replicate unchecked?

153 drugs in the pipeline

Researchers have discovered that T-cells may be unable to work on their own to fight cancer because of certain receptors that shut down their ability to recognize and attack cancer cells. New targeted antibodies are being used to unblock these receptors and unleash the power of the immune system against one of the most prevalent, costly and feared diseases by enabling the body's T-cells to fight cancer.

There are currently 7 types of cancer that have approved immuno-oncology drugs in the U.S. These include melanoma, lung cancer, blood cancers, and breast cancer.

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