One of the most promising breakthroughs in the past decade has been immune checkpoint therapy, or simply “immunotherapy.” Immune T-cells continually patrol our body, looking for rogue cells to identify and kill before they can multiply into a tumor. If it weren’t for T-cells, we’d all develop cancer in our twenties. But rogue cancer cells evolve ways to fool cancer-detecting T-cells so they can go on happily multiplying. The latest and most effective immunotherapies bind to proteins on the cancer cells’ surface. It is the equivalent of taking the invisible cloak off cancer cells so T-cells can
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