Furthermore, mouse KRT8, which is frequently associated with apical CAFs (apCAFs) in the breast and pancreatic cancer microenvironment (Elyada et al., 2019; Sebastian et al., 2020) was upregulated in MEFs in response to co-culture with MCF7 cells (Source data 1 - table 9). The gene discussed is KRT8; the disease is pancreatic neoplasm.