Keytruda
UCLA Jonsson Comprehensive Cancer Center

Keytruda

Developed by Dr. Antoni Ribas at UCLA, pembrolizumab is an antibody that targets a protein called PD-1 that is expressed by immune cells. The protein puts the immune system’s brakes on, keeping its T cells from recognizing and attacking cancer cells. The drug disables these brakes, allowing immune cells (in blue) to shrink cancer tumors (right). 


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