biostudies-literatureUnknown149(14)Knoblauch MUniversitätsklinik München<h4>Purpose</h4>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).<h4>Methods</h4>Using flow cytometry, we evaluated changes in T cell subtypes upon co-culture of patient-derived PDAC organoids and matched PBMCs.<h4>Results</h4>After co-culturing PDAC organoids with PBMCs, we observed changes in CD4⁺, CD8⁺ and Treg cell populations. We observed favorable clinical outcome in patients whose PBMCs reacted to the co-culture with organoids.<h4>Conclusion</h4>TJournal of cancer research and clinical oncology13051-13064https://www.ebi.ac.uk/biostudies/studies/S-EPMC10587248biostudies-literatureIn-vitro model to mimic T cell subset change in human PDAC organoid co-culture.PMC10587248Werner JBazhin AVIlmer MHeinrich KAngele MKKnoblauch MRenz BWSirtl SBeirith IKoch DMa TNieß HHofmann FWestphalen CBAghamaliev URegel IReichert MfalseIn-vitro model to mimic T cell subset change in human PDAC organoid co-culture.<h4>Purpose</h4>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).<h4>Methods</h4>Using flow cytometry, we evaluated changes in T cell subtypes upon co-culture of patient-derived PDAC organoids and matched PBMCs.<h4>Results</h4>After co-culturing PDAC organoids with PBMCs, we observed changes in CD4⁺, CD8⁺ and Treg cell populations. We observed favorable clinical outcome in patients whose PBMCs reacted to the co-culture with organoids.<h4>Conclusion</h4>T2023-01-01T00:00:00Z2023 Nov2025-04-22T17:27:31.536Z2025-04-06T02:07:30.209ZS-EPMC105872483747085510.1007/s00432-023-05100-7