From 1986 to 2003, Fire was a staff member of theCarnegie Institution of Washington’s Department ofEmbryology inBaltimore,Maryland. The initial work on double stranded RNA as a trigger of gene silencing was published while Fire and his group were at the Carnegie Labs.[1] Fire became an adjunct professor in the Department of Biology atJohns Hopkins University in 1989 and joined the Stanford faculty in 2003. Throughout his career, Fire has been supported by research grants from the U.S.National Institutes of Health.
In 2006, Fire and Craig Mello shared theNobel Prize in Physiology or Medicine for work first published in 1998 in the journalNature.[4] Fire and Mello, along with colleagues SiQun Xu, Mary Montgomery, Stephen Kostas, and Sam Driver, reported that tiny snippets of double-strandedRNA (dsRNA) effectively shut down specific genes, driving the destruction ofmessenger RNA (mRNA) with sequences matching the dsRNA. As a result, the mRNA cannot be translated into protein. Fire and Mello found that dsRNA was much more effective in gene silencing than the previously described method of RNA interference with single-stranded RNA. Because only small numbers of dsRNA molecules were required for the observed effect, Fire and Mello proposed that a catalytic process was involved. This hypothesis was confirmed by subsequent research.
The Nobel Prize citation, issued by Sweden'sKarolinska Institute, said: "This year's Nobel Laureates have discovered a fundamental mechanism for controlling the flow of genetic information." TheBritish Broadcasting Corporation (BBC) quoted Nick Hastie, director of theMedical Research Council's Human Genetics Unit, on the scope and implications of the research:
It is very unusual for a piece of work to completely revolutionise the whole way we think about biological processes and regulation, but this has opened up a whole new field in biology.[5]