White blood cells from a unique breed of cancer-resistant mice have cured advanced cancers in normal mice. When injected, the immune cells sought out and killed existing tumours and also protected the mice against lethal doses of new, highly aggressive cancers. The “resistant-cell therapy” appears to work without toxic side effects

[Read](http://www.newscientist.com/article.ns?id=dn9138&feedId=online-news_rss20) (New Scientist)