Virus breakthrough raises hope over ending common cold

02.11.2010 [22:30]
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Baku, November 2 (AZERTAC). Scientists say they have made a landmark discovery which could pave the way for new drugs to beat illnesses like the common cold.

Until now experts had thought that antibodies could only tackle viral infections by blocking or attacking viruses outside cells.

But work done by the Medical Research Council shows antibodies can pass into cells and fight viruses from within.

PNAS journal said the finding held promise for a new antiviral drugs.

The Cambridge scientists stressed that it would take years of work and testing to find new therapies, and said that the pathway they had discovered would not work on all viruses.

Some antiviral drugs are already available to help treat certain conditions, like HIV.

But viruses remain mankind`s biggest killer, responsible for twice as many deaths each year as cancer, and are among the hardest of all diseases to treat.

The new discovery by Dr Leo James and colleagues transforms the previous scientific understanding of our immunity to viral diseases like the common cold, `winter vomiting` and gastroenteritis.

It shows that antibodies can enter cells and that once inside, they then trigger a response, led by a protein called TRIM21.

This protein pulls the virus into a disposal system used by the cell to get rid of unwanted material.

The researchers found this process happens quickly, usually before most viruses have chance to harm the cell.

And they discovered that increasing the amount of TRIM21 protein in cells makes this process even more effective, suggesting new ways of making better antiviral drugs.

Virus breakthrough raises hope over ending common cold

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