<http://schema.org/description>
"In the latest issue of Nature, researchers at the Perelman School of Medicine at the University of Pennsylvania clarify the role of two proteins key to T-cell development. They found that one well-known protein called Notch passes off much of its role during T-cell maturation to another protein called TCF-1. T cells are required for many aspects of immunity, and understanding how these proteins influence the production of infection-fighting cells could improve treatments for immune-suppressed patients."^^<http://www.w3.org/2001/XMLSchema#string>
<http://medicalxpress.com/news/2011-08-penn-key-molecule-immune-cell.html>