"WWP2 positively regulates the expression of pro-fibrotic markers and extracellular matrix genes. TGFbeta1 stimulation promotes nuclear translocation of the WWP2 isoforms containing the N-terminal region and their interaction with SMAD2. WWP2 mediates the TGFbeta1-induced nucleocytoplasmic shuttling and transcriptional activity of SMAD2."xsd:string