Pancreatic cancer-derived organoids – a disease modeling tool to predict drug response. Issue 5 (June 2020)

• Record Type: Journal Article
• Authors: Frappart, Pierre-Olivier; Walter, Karolin; Gout, Johann; Beutel, Alica K; Morawe, Mareen; Arnold, Frank; Breunig, Markus; Barth, Thomas FE; Marienfeld, Ralf; Schulte, Lucas; Ettrich, Thomas; Hackert, Thilo; Svinarenko, Michael; Rösler, Reinhild; Wiese, Sebastian; Wiese, Heike; Perkhofer, Lukas; Müller, Martin; Lechel, André; Sainz, Bruno; Hermann, Patrick C; Seufferlein, Thomas; Kleger, Alexander
• Is Part Of: United European Gastroenterology journal. Volume 8:Issue 5(2020)
• Page Start: 594
• Page End: 606
• Publication Date: 2020-06
• Subjects: PDAC -- organoids -- drug response prediction; Gastroenterology -- Periodicals; Periodicals; 616.33005
• DOI: 10.1177/2050640620905183
• Languages: English
• ISSNs: 2050-6406

Abstract

Background: Organotypic cultures derived from pancreatic ductal adenocarcinoma (PDAC) termed pancreatic ductal cancer organoids (PDOs) recapitulate the primary cancer and can be derived from primary or metastatic biopsies. Although isolation and culture of patient-derived pancreatic organoids were established several years ago, pros and cons for individualized medicine have not been comprehensively investigated to date. Methods: We conducted a feasibility study, systematically comparing head-to-head patient-derived xenograft tumor (PDX) and PDX-derived organoids by rigorous immunohistochemical and molecular characterization. Subsequently, a drug testing platform was set up and validated in vivo . Patient-derived organoids were investigated as well. Results: First, PDOs faithfully recapitulated the morphology and marker protein expression patterns of the PDXs. Second, quantitative proteomes from the PDX as well as from corresponding organoid cultures showed high concordance. Third, genomic alterations, as assessed by array-based comparative genomic hybridization, revealed similar results in both groups. Fourth, we established a small-scale pharmacotyping platform adjusted to operate in parallel considering potential obstacles such as culture conditions, timing, drug dosing, and interpretation of the results. In vitro predictions were successfully validated in an in vivo xenograft trial. Translational proof-of-concept is exemplified in a patient with PDAC receiving palliative chemotherapy. Conclusion: Small-scale drug screening in organoids appears to be a feasible, robust and easy-to-handle disease modeling method to allow response predictions in parallel to daily clinical routine. Therefore, our fast and cost-efficient assay is a reasonable approach in a predictive clinical setting.