Cancer drugs known as checkpoint blockade inhibitors have proven effective for some cancer patients. These drugs work by taking the brakes off the body's T cell response, stimulating those immune cells to destroy tumors. Some studies have shown that these drugs work better in patients whose tumors have a very large number of mutated proteins, which scientists believe is because those proteins offer plentiful targets for T cells to attack. However, for at least 50 percent of patients whose tumors show a high mutational burden, checkpoint blockade inhibitors don't work at all.

https://www.miragenews.com/research-reveals-why-some-immunotherapies-fall-1084635/

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