The cell fragments play a role in the body’s first line of defense against bacterial infection, helping white blood cells grab blood-borne bacteria in the liver.
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Researchers identify the signaling program that enables finger and toenail stem cells to direct digit regeneration after amputation.
Whether infecting hot spring-dwelling microbes or humans, viruses co-opt the same group of proteins to assemble themselves and break out of cells.
In avian species, a gene induces programmed cell death during development in the area where a phallus would otherwise grow.
In the fruit fly, the ability of neural stem cells to make the full repertoire of neurons is regulated by the movement of key genes to the nuclear periphery.
Malaria parasites transmitted via mosquitoes elicit a more effective immune response and cause less severe infection than those directly injected into red blood cells.
The activity of one type of immune cell helps regrow the limbs of amputated salamanders.
A new class of immune cell could protect against type 1 diabetes by suppressing other immune cells.
Researchers track DNA modifications and gene expression in stem cells as they differentiate.
Research Associate, Perelman School of Medicine, University of Pennsylvania. Age: 27
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