'Natural killer' cells keep immune system in balance

Courtesy EurekAlert! - Medicine and Health  Wed, 09/30/2009 - 22:00

(Brown University) Researchers from Brown University and McGill University have discovered that the natural killer, or NK cells, help prevent T cells from over-responding when a virus hits.

This balance helps prevent T cells, which ordinarily serve the immune system, from causing harm. Details are in the September issue of the Journal of Experimental Medicine.

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