"Earlier methods can take two years per gene in mice. Our technique can assess about 300 genes in a single mouse in as little as five weeks," claimed Daniel Schramek, a postdoctoral fellow at Rockefeller University's laboratory of mammalian cell biology and development here.

The researchers used RNA interference, a natural process whereby RNA molecules inhibit gene expression.

The non-invasive method avoids triggering a wound or inflammatory response that is typically associated with conventional methods to knockdown a gene in cultured cells.

Head and neck cancers are the sixth most deadly type of cancer worldwide.

"We have demonstrated that RNA interference method is highly useful in the rapid discovery, validation and characterisation of tumour suppressor genes that might otherwise be missed in a genetic screen.It can be applied to many kinds of cancers, such as breast and lung, the researchers added.


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