News tagged with white blood cells

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

Immune cells cast nets to save us from harm

Our immune cells can undergo a spectacular form of cell death, using their own DNA to make nets that kill infectious microbes. Now for the first time, advanced microscopy techniques have allowed scientists to visualise details ...

Jul 05, 2016
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Aggressiveness of acute myeloid leukemia elucidated

Antoine Peters and colleagues at the Basel University Children's Hospital (UKBB) have discovered why acute leukemias with the same genetic abnormality vary in their aggressiveness based on their cellular origin. They found ...

Jun 24, 2016
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Natural killer cells have memory

Researchers at the University of Bonn and the Ludwig-Maximilians-Universität of Munich have decoded a new mechanism of how the immune system can specifically attack pigmented cells of the skin. It was previously believed ...

Jun 07, 2016
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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

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