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pd-1 is a negative co-stimulatory signal expressed by tumor cells. what advantage would the expression of pd-1 have in a tumor cell avoiding the immune response?

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Tumor cells can avoid being killed by activated T cells.

Tumors are abnormal growths of body cells. Tumors occur when cells divide and grow excessively in the body.

The immune system should be able to help protect the body from cancer.

PD-1 therapy is a therapy that increases the effectiveness of the patient's immune system to fight tumor cells. The PD-1 molecule on tumor cells then interacts with the PD-1 receptor on T cells. The PD-1 molecule signals the T lymphocytes to stop working so that the lymphocytes experience anergy or even apoptosis. By producing PD-1, tumor cells can avoid lymphocyte attack.

Learn more about tumors at:

https://brainly.com/question/14143650

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