Fragments of tRNA suggest a novel mechanism for cancer progression

Friday, May 8, 2015 - 02:30 in Biology & Nature

For years, scientists have been puzzled by the presence of short stretches of genetic material floating inside a variety of cells, ranging from bacteria to mammals, including humans. These fragments are pieces of the genetic instructions cells use to make proteins, but are too short a length to serve their usual purpose. Reporting in this week's Cell, researchers at Rockefeller have discovered a major clue to the role these fragments play in the body -- and in the process, may have opened up a new frontier in the fight against breast cancer.

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