News tagged with immune cells

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

New malaria vaccine candidates identified

Researchers have discovered new vaccine targets that could help in the battle against malaria. Taking a new, large-scale approach to this search, researchers tested a library of proteins from the Plasmodium fa ...

4 hours ago
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Why the immune system fails to kill HIV

Our immune system contains CD8+ T cells which protect us from various diseases such as cancer and viruses. Some of them are specifically tasked with killing cells infected with the HIV virus – and researchers ...

Jul 18, 2014
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Unsuspected aspect of immune regulation revealed

Until now, the immune cells known as 'B cells' have been thought to specialise only in the production of antibodies. A discovery by Garvan immunologists shows they also have a role to play in regulating another ...

Jul 01, 2014
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Fat damages the lungs of heavy drinkers

Heavy drinking damages the body in many ways. In addition to liver failure, alcoholics are at a much greater risk of developing pneumonia and life threatening acute respiratory distress syndrome (ARDS), for which there is ...

Jun 30, 2014
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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.

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