Interaction network explains viral mechanisms and opens up possibilities for new treatments Hepatitis C virus (HCV) forms a precursor protein, which is processed into ten viral proteins. Scientists at the Institute of Virology at the Helmholtz Zentrum have now discovered how these proteins interact with one another and thus regulate important stages in the viral replication cycle. Shedding light on this interaction network creates a better understanding of the mechanisms underlying viral replication and pathogenesis and paves the way for new antiviral therapies.
As part of their investigations, the team led by Professor Michael Schindler, head of the working group at the Institute of Virology, applied the FACS-FRET* technique, which Schindler had developed at the Heinrich Pette Institute in Hamburg. With the aid of FACS-FRET, protein interactions in living cells can be characterized. Furthermore, it allows to unravel the relevance of certain protein interactions for replication. This method also enables screening for antiviral substances.
Infections with HCV lead to inflammation of the liver, and in up to 80 percent of cases the inflammation becomes chronic. Hepatitis C is a risk factor for the development of liver cirrhosis and liver cancer.