For the first time, MIT researchers have performed a large-scale, high-resolution study of the cells in breast milk, allowing them to track how these cells change over time in nursing mothers.
Cell & Microbiology
Apr 5, 2022
0
769
Scientists have found a way to sneak nanoparticles carrying tumor-fighting drugs past cells of the immune system, which would normally engulf the particles, preventing them from reaching their target. The technique takes ...
Bio & Medicine
Jul 17, 2013
0
0
(PhysOrg.com) -- Is the indefinite expansion of adult cells possible without recourse to stem cell intermediates? The team led by Michael Sieweke at the Centre d'immunologie de Marseille Luminy, France has proved that this ...
Cell & Microbiology
Nov 16, 2009
1
0
Restoring hair loss is a task undertaken not only by beauty practitioners. Previous studies have identified signals from the skin that help prompt new phases of hair growth. However, how different types of cells that reside ...
Cell & Microbiology
Dec 23, 2014
0
0
Researchers have found that a previously uncharacterized tumor-suppressor protein plays an important role in the functioning of the immune system. The study, which will be published in the June 22 issue of the Journal of ...
Biochemistry
Jun 21, 2018
0
11
(Phys.org) —Activating the body's immune system to attack cancer and prevent it from recurring is one of the Holy Grails of cancer research because of its ability to specifically target cancer and to search almost anywhere ...
Bio & Medicine
Jul 15, 2013
0
0
Scientists have shown that a process known as oxidative stress is at work during encounters between certain nanoparticles and immune cells, selectively modifying proteins on macrophages, a type of immune cell. The findings, ...
Bio & Medicine
Jan 14, 2016
0
16
To get to the places where they are needed, immune cells not only squeeze through tiny pores. They even overcome wall-like barriers of tightly packed cells. Researchers at the Institute of Science and Technology Austria (ISTA) ...
Cell & Microbiology
Apr 21, 2022
0
79
The body's immune system exists to identify and destroy foreign objects, whether they are bacteria, viruses, flecks of dirt or splinters. Unfortunately, nanoparticles designed to deliver drugs, and implanted devices like ...
Bio & Medicine
Feb 21, 2013
0
0
(Phys.org)—Every organ strikes its own balance between self-renewal and differentiation. At one extreme is the brain, where only a few isolated outposts are known to contribute to a largely quiescent population. At another ...
Macrophages (Greek: big eaters, from makros "large" + phagein "eat"; abbr. MΦ) are white blood cells within tissues, produced by the division of monocytes. Human macrophages are about 21 micrometres in diameter. Monocytes and macrophages are phagocytes, acting in both non-specific defense (or innate immunity) as well as to help initiate specific defense mechanisms (or adaptive immunity) of vertebrate animals. Their role is to phagocytose (engulf and then digest) cellular debris and pathogens either as stationary or as mobile cells, and to stimulate lymphocytes and other immune cells to respond to the pathogen. They can be identified by specific expression of a number of proteins including CD14, CD11b, F4/80 (mice)/EMR1 (human), Lysozyme M, MAC-1/MAC-3 and CD68 by flow cytometry or immunohistochemical staining. They move by action of Amoeboid movement.
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