According to the news, what may be significance of the discovery?

The Nobel Assembly in Stockholm, Sweden has named two American doctors as the winners of the 2006 Nobel Prize in medicine. Nobel officials say Andrew Fire and Craig Mello won for their discovery of the way some information travels inside the body. Their discovery may help find treatments for serious conditions and diseases. Mr. Fire is a teacher at Stanford University School of Medicine in California. Mr. Mello teaches at the Massachusetts Medical School. The two men will share the one-million-three-hundred-thousand-dollar prize to be presented at a ceremony in Stockholm in December.