CD8+ T cells - known as "killer" T cells - are the assassins of the immune system. Once they are primed, they seek out and destroy other cells that are infected with virus or cells that are cancerous.

Priming involves dendritic cells — sentinels of the immune system. In an influenza infection in the lungs, for example, lung-migratory dendritic cells capture a piece of the viral antigen, and then ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. Dear Dr. Donohue • When I was 22, I rode a motorcycle all the time. I got into a bad accident on an interstate highway and was ...

Memory T cells are a special type of white blood cell that "remember" past infections and vaccines, helping our bodies to ...

Presyncope coupled with an enlarged spleen suggests infection A 69-year-old woman presents with night sweats, dizziness, fatigue and chronic pain in the upper abdomen. Mrs. C is a 69-year-old white ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. Dear Dr. Donohue • High-school football caused me to lose my spleen. I mentioned this to a doctor friend of mine. She told me I ...

Infection by live attenuated retroviruses provides excellent protection from challenge with pathogenic viruses in several animal models, but little is known about which immune effectors are necessary ...

The human body is an amazing thing. For each one of us, it’s the most intimate object we know. And yet most of us don’t know enough about it: its features, functions, quirks, and mysteries. Our series ...

CD8+ T cells -- known as "killer" T cells -- are the assassins of the immune system. Once they are primed, they seek out and destroy other cells that are infected with virus or cells that are ...