Deep in the folds of the intestine, in microscopic pockets called crypts, a quiet surveillance system is always at work. Stem ...

For much of modern medicine, inflammation was viewed as a localized response. Swelling, redness, and pain were understood as targeted reactions to injury or infection. Over time, however, researchers ...

Stimulating the liver to generate signals normally produced by the thymus can reverse age-related declines in T-cell populations.

The brain is among the most “immune-privileged” of organs primarily through the highly selective permeability of the blood-brain-barrier (BBB), its minimal lymphatic drainage, the presence of ...

Scientists have identified a hidden barrier that prevents immunotherapy from working against a rare liver cancer. Immunotherapy, which activates the body’s own immune system to kill cancer cells, has ...