Updated project metadata. Pancreatic ductal adenocarcinoma (PDAC) is characterized by the presence of relatively few tumor cells surrounded a heterocellular non-cancerous cell population embedded in extracellular matrix, collectively named stroma. Despite the recognition that the stroma is an important contributor to the typically poor outcome of PDAC, its analysis has been hampered by the analysis of bulk tissue. Here we present a landscape of human epithelial PDAC cells of primary tumors (n=6) and metastases (n=4) in a mouse stroma background.