Too much of a good thing? Overactive immune response blocks itself

[unable to retrieve full-text content]As part of the innate immune system natural killer cells play an important role in immune responses. For a long time they have been known as the first line of defense in the fight against infectious diseases. Therefore, researchers assumed that the body needs as many active NK cells as possible. However, scientists have now shown that the principle "the more the better" does not apply to this type of immune cells.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/~3/UNMsQ1OGP5c/130726103355.htm

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