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Nobel prize for genetic discovery Nobel prize for genetic discovery
(10 minutes later)
Two US scientists have been awarded the Nobel Prize for medicine for their pioneering work in genetics.Two US scientists have been awarded the Nobel Prize for medicine for their pioneering work in genetics.
The work of Dr Andrew Fire and Dr Craig Mello could lead to new treatments for a range of illnesses, including viral infections and cancer.The work of Dr Andrew Fire and Dr Craig Mello could lead to new treatments for a range of illnesses, including viral infections and cancer.
They discovered a phenomenon called RNA interference, which regulates the expression of genes.They discovered a phenomenon called RNA interference, which regulates the expression of genes.
The process has the potential to help researchers shut down genes which cause harm in the body.The process has the potential to help researchers shut down genes which cause harm in the body.
This year's Nobel Laureates have discovered a fundamental mechanism for controlling the flow of genetic information Nobel citationThis year's Nobel Laureates have discovered a fundamental mechanism for controlling the flow of genetic information Nobel citation
Dr Craig Mello is based at the University of Massachusetts Medical School, and Dr Fire at Stanford University School of Medicine.Dr Craig Mello is based at the University of Massachusetts Medical School, and Dr Fire at Stanford University School of Medicine.
RNA interference occurs in plants, animals, and humans. RNA interference occurs in plants, animals and humans.
It plays a key role in mobilising the body's defences against infection, and in keeping unstable genes under control.It plays a key role in mobilising the body's defences against infection, and in keeping unstable genes under control.
The process is already being widely used in science as a method to study the function of genes.The process is already being widely used in science as a method to study the function of genes.
Genetic instructionsGenetic instructions
The Nobel citation, issued by Sweden's Karolinska Institute, said: "This year's Nobel Laureates have discovered a fundamental mechanism for controlling the flow of genetic information."The Nobel citation, issued by Sweden's Karolinska Institute, said: "This year's Nobel Laureates have discovered a fundamental mechanism for controlling the flow of genetic information."
Our genome operates by sending instructions for the manufacture of proteins from DNA in the nucleus of the cell to the protein synthesizing machinery in the watery cytoplasm.Our genome operates by sending instructions for the manufacture of proteins from DNA in the nucleus of the cell to the protein synthesizing machinery in the watery cytoplasm.
These instructions are conveyed by another form of genetic material called messenger RNA (mRNA).These instructions are conveyed by another form of genetic material called messenger RNA (mRNA).
In 1998, Dr Mello and Dr Fire published a paper in the journal Nature detailing how RNA interference can subvert this process - effectively shutting specific genes down.In 1998, Dr Mello and Dr Fire published a paper in the journal Nature detailing how RNA interference can subvert this process - effectively shutting specific genes down.
Tiny snippets of RNA dupe the cell into destroying the gene's mRNA before it can produce a protein.Tiny snippets of RNA dupe the cell into destroying the gene's mRNA before it can produce a protein.
Scientists have speculated that the mechanism developed hundreds of millions of years ago as a way to protect organisms against invading viruses, which sometimes create double-stranded RNA when they replicate.Scientists have speculated that the mechanism developed hundreds of millions of years ago as a way to protect organisms against invading viruses, which sometimes create double-stranded RNA when they replicate.
The Nobel Prize is worth $1.4 million. The Nobel Prize is worth $1.4m.