News tagged with immune cells

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

Inhibitory signal pathways identified

LMU researchers led by Christian Weber show that the chemokine receptor CXCR4 protects the integrity of arterial walls, and define a new mechanism that restricts the deleterious accumulation of cholesterol in atherosclerotic ...

May 08, 2017
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Immune cells derived from specialised progenitors

Dendritic cells are gatekeepers of Immunity and are crucial for the detection and initiation of Immunity against pathogens and foreign substances. Up to now dendritic cell subtypes were thought to develop from one common ...

May 05, 2017
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Cell 'canibalism' educates our defenses

Phagocytosis is a biological mechanism whereby specialized cells ingest and degrade old, dead, or damaged cells to prevent tissue damage due to their accumulation. But phagocytosis appears to also have an educational role. ...

May 03, 2017
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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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