NTN1 and infection: Over the five- to ten-day kinetic follow-up study, HCV induced an 8-fold increase in the levels of Netrin-1 mRNA at day eight post-infection in proliferating cultures infected with an HCV JFH1 isolate (Fig 2F) or with a genotype 1 strain (Fig 2G) and in differentiated cells (Fig 2H).