RT Journal Article SR Electronic T1 Stromal biology and therapy in pancreatic cancer: ready for clinical translation? JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 159 OP 171 DO 10.1136/gutjnl-2018-316451 VO 68 IS 1 A1 Neesse, Albrecht A1 Bauer, Christian Alexander A1 Öhlund, Daniel A1 Lauth, Matthias A1 Buchholz, Malte A1 Michl, Patrick A1 Tuveson, David A A1 Gress, Thomas M YR 2019 UL http://gut.bmj.com/content/68/1/159.abstract AB Pancreatic ductal adenocarcinoma (PDA) is notoriously aggressive and hard to treat. The tumour microenvironment (TME) in PDA is highly dynamic and has been found to promote tumour progression, metastasis niche formation and therapeutic resistance. Intensive research of recent years has revealed an incredible heterogeneity and complexity of the different components of the TME, including cancer-associated fibroblasts, immune cells, extracellular matrix components, tumour vessels and nerves. It has been hypothesised that paracrine interactions between neoplastic epithelial cells and TME compartments may result in either tumour-promoting or tumour-restraining consequences. A better preclinical understanding of such complex and dynamic network systems is required to develop more powerful treatment strategies for patients. Scientific activity and the number of compelling findings has virtually exploded during recent years. Here, we provide an update of the most recent findings in this area and discuss their translational and clinical implications for basic scientists and clinicians alike.