In-vitro model to mimic T cell subset change in human PDAC organoid co-culture
Margit Knoblauch, Tao Ma, Iris Beirith, Dominik Koch, Felix O. Hofmann, Kathrin Heinrich, U. Aghamaliev, Simon Sirtl, C. Benedikt Westphalen, Hanno Nieß, Maximilian Reichert, Martin K. Angele, Ivonne Regel, Alexandr V. Bazhin, Jens Werner, Matthias Ilmer, Bernhard W. Renz
Abstract
PURPOSE: Immunotherapies have largely failed as treatment options for pancreatic ductal adenocarcinoma (PDAC). In this field, clinical translational studies into personalized treatment are of fundamental importance. In our study, we model tumor-cell immune-cell interactions in a co-culture of primary human PDAC organoids and matched peripheral blood mononuclear cells (PBMCs). METHODS: Using flow cytometry, we evaluated changes in T cell subtypes upon co-culture of patient-derived PDAC organoids and matched PBMCs. RESULTS: and Treg cell populations. We observed favorable clinical outcome in patients whose PBMCs reacted to the co-culture with organoids. CONCLUSION: This experimental model allows to investigate interactions between patient derived PDAC organoids and their PBMCs. This co-culture system could serve as a preclinical platform to guide personalized therapeutic strategies in the future.