It’s supposed to fight off invaders to keep us healthy. But sometimes it turns traitor and attacks our own cells and tissues.

A newly recognized set of T helper cells seems to guard against aging by eliminating harmful senescent cells. Their presence ...

Cells have an internal skeleton that maintains their structure and also drives their movement. Known as the cytoskeleton, ...

A new study has discovered a molecular signal that tumors exploit to exhaust the T cells meant to destroy them—and how ...

Researchers found a hidden signal that makes T cells shut down during cancer fights. Turning off this signal reawakens the ...

In Alzheimer’s disease, which is the most common cause of dementia, microglia (the immune cells of the brain) can behave in very different ways. At times, they help protect the brain, and at other ...

The field of tissue-immune interactions has undergone significant transformation as emerging evidence demonstrates the centrality of local microenvironments ...

Like all hardworking things, the cytotoxic T lymphocytes (CTLs) of the immune system charged with detecting and destroying ...

Foods like citrus fruits and broccoli may boost the immune system and help you to fight illness. Learn which immunity-boosting foods to add to your diet.

A pig kidney with one genetic change functioned in a brain-dead human for 61 days, more than doubling previous records.

In a successful transplant in a man with brain death, scientists prevented the immune system from attacking a genetically ...

The discovery that fat is a communicative organ with a role in everything from bone health to mood is forcing a rethink of ...