article_snippet.sent: In a chance discovery in mice, a protein which helps boost the body’s immune system ten-fold, an astonishing effect which could help patients fight off cancers and viruses was found that a previously unknown protein - which they named the lymphocyte expansion molecule or LEM - dramatically boosted the body
article_snippet.sent: In a chance discovery in mice, it was found that a previously unknown protein - which they named the lymphocyte expansion molecule or LEM - dramatically boosted the body
article_snippet.sent: a chance discovery in mice was unexpected because a previously unknown protein - which they named the lymphocyte expansion molecule had no known function and resembles no other protein known to science.
article_snippet.sent: In further experiments the scientists went on to show that the LEM molecule had a similar impact on the human immune system.
highlights_snippet.sent: The chance discovery made when unknown molecule was found in mice .