Fig 8. Working Model.
An epigenetic program, initiated by Shh, and mediated by EZH2 loss, links cholangiocyte maturation to the deposition of a provisional FN matrix, shedding light on the simultaneous processes of biliary repair and peri-portal scar formation. FN may serve as a provisional scaffold for subsequent recruitment and activation of hepatic stellate cells or portal myofibroblasts.