Vitamin A signals offer clues to treating autoimmunity

Distributed around the body, dendritic cells act as the security alarms of the immune system. After sensing the presence of intruders, dendritic cells can transmit the alarm to white blood cells or tell them to relax, depending on the signals they send out.

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<p><a href="http://www.physorg.com/news155138121.html">Vitamin A signals offer clues to treating autoimmunity</a></p> <p>Distributed around the body, dendritic cells act as the security alarms of the immune system. After sensing the presence of intruders, dendritic cells can transmit the alarm to white blood cells or tell them to relax, depending on the signals they send out.</p>