Natural killer cells are unique immune cells that kill virus infected and cancer cells. In this video, I will draw the top 5 ways Natural Killer cells work for you. Natural Killer cells are related to B cells and T cells, and interact with your "name tag," the MHC-I receptor that is on all of your cells except your red blood cells. The Natural Killer cell will spare any cell with your name tag, and well destroy any cell without it. This is called the Natural Killer cell voting system. If the Killer Activating Receptor (KAR) is activated, and the Killer inhibitory receptor (KIR) is not then the Natural Killer cell will destroy that cell with perforin, granzyme, FasL, TNF-a, and IFN-y. Deficiency in Natural Killer cells makes a person vulnerable to viral infection, especially DNA viruses like Mono and Chickenpox. Having a plan with your doctor and keeping regular visits can help manage NK cell deficiencies.

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