Lurking deep inside some tumours are "factories" full of immune cells that help the body fight a rearguard action against cancer and are key to helping some patients recover, new research has shown.
Jan 15, 2020
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When a person's immune system is impaired by a genetic disease, a bone-marrow transplant can be a powerful therapeutic tool, but with a major downside: during the first few months the recipient's defenses against viruses ...
Jan 02, 2020
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A group of researchers at Osaka University revealed that endothelial cell-selective adhesion molecule (ESAM), a surface marker for hematopoietic stem cells (HSCs) and vascular endothelial cells (ECs), played an important ...
Dec 27, 2019
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Scientists at St. Jude Children's Research Hospital have discovered a new way that the molecule RIPK1 leads to cell death in infected, damaged or unwanted cells showing that more than one mechanism can trigger the process. ...
Dec 23, 2019
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Every year, we're reminded to return to the pharmacy for a flu shot. Why can't we have a flu vaccine that offers long-term protection, like those for measles or polio? That's because the influenza virus continuously evolves, ...
Dec 20, 2019
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Glutamine could help people with obesity reduce inflammation of fat tissue and reduce fat mass, according to a new study at Karolinska Institutet in Sweden and the University of Oxford in the U.K. The researchers also show ...
Dec 19, 2019
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Autoimmune diseases are a medical conundrum. In people with these conditions, the immune system of the body, the designated defense system, starts attacking the cells or organs of its own body, mistaking internal cells for ...
Dec 18, 2019
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The antibody discovery and vaccine development research fields may be on the verge of rapidly expanding with data that previously took decades to acquire, thanks to LIBRA-seq, a new tool developed by Vanderbilt University ...
Dec 16, 2019
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When the immune system detects a foreign pathogen, a cascade of chemical signals call white blood cells to the scene. Neutrophils are the most common and abundant type of these cells and while they start accumulating at the ...
Dec 13, 2019
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Plentiful in foods like fish and flaxseed, omega-3 fatty acids have long been linked with cardiovascular health, and new research is looking at the biology behind how it might work.
Dec 12, 2019
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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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