News tagged with white blood cells

Related topics: cells · immune system · immune cells · t cells · immune response

How the immune system's key organ regenerates itself

With advances in cancer immunotherapy splashing across headlines, the immune system's powerful cancer assassins—T cells—have become dinner-table conversation. But hiding in plain sight behind that "T" is the organ from ...

Jan 15, 2018
popularity427 comments 0

New warning system discovered in the immune defence

Researchers at Linköping University in Sweden have discovered a previously unknown warning system that contributes to the body's immune system. Mitochondria in the white blood cells secrete a web of DNA fibres that raises ...

Jan 15, 2018
popularity5 comments 0

How the immune system curbs its own mistakes

When we encounter a pathogen, the immune system is usually able to respond quickly and forcefully to protect us from infection. Some of its preparedness is inherent in the process by which white blood cells called B cells ...

Jan 11, 2018
popularity0 comments 0

White blood cell

White blood cells (WBCs), or leukocytes (also spelled "leucocytes"), are cells of the immune system defending the body against both infectious disease and foreign materials. Five different and diverse types of leukocytes exist, but they are all produced and derived from a multipotent cell in the bone marrow known as a hematopoietic stem cell. Leukocytes are found throughout the body, including the blood and lymphatic system.

The number of leukocytes in the blood is often an indicator of disease. There are normally between 4×109 and 1.1×1010 white blood cells in a litre of blood, making up approximately 1% of blood in a healthy adult. An increase in the number of leukocytes over the upper limits is called leukocytosis, and in leukopenia, this number is much lower than the lower limit. The physical properties of leukocytes, such as volume, conductivity, and granularity, may change due to activation, the presence of immature cells, or the presence of malignant leukocytes in leukemia.

This text uses material from Wikipedia, licensed under CC BY-SA

Subscribe to rss feed