Scientists unlock promising key to preventing cancer relapse after immunotherapy

The researchers discovered that cancer immunotherapies that make use of immune system cells such as T cells and CAR-T cells kill not only tumor cells that express the drugs' target, but also adjacent tumor cells that lack the targets, because of the presence of fas. This process, known as bystander killing, can be made more effective by adding therapeutics that turn off the regulation of fas proteins, the researchers said.

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