Osterreicher et al., demonstrate that bone marrow derived cells (BMDCs) represent the main source of S100a4 during liver fibrosis (Österreicher et al., 2011), and S100a4+ BMDCs have been shown to migrate to the site of neointima formation following vein grafting (Cheng et al., 2012). This evidence concerns the gene S100A4 and Hepatic fibrosis.