Washington, Mar 2 : Scientists have found that Vitamin A plays a major role in the process whereby dendritic cells signal the white blood cells about any intrusion in the body.
Researchers at the Emory Vaccine Center and Yerkes National Primate Research Center have discovered that dendritic cells can respond to a compound called zymosan, a component of yeast cell walls, through two different receptors by sending out both stimulatory and calming messages at once.
The scientists say that their findings may prove useful for designing vaccines against many infectious agents, as the calming receptor is known to respond to bacteria and viruses as well as yeast.