News tagged with immune cells

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

Mechanism of probiotic health promotion revealed

In several clinical trials, the probiotic bacterium Lactobacillus paracasei DG has been shown to promote health, but until now, the mechanism has remained a black box. New research now suggests that the health benefits arise ...

Dec 02, 2016
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In cancer immunotherapy, one PD-L1 test to rule them all?

Clinical trials have proven the power of immunotherapies targeting PD-L1 or PD-1 in a range of cancers. However, these same trials show that only some patients benefit - tumors must depend on PD-L1 to be affected when medicines ...

Dec 01, 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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