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Updated: Jan 23, 2026

Isolation and Characterization of Patient-derived Pancreatic Ductal Adenocarcinoma Organoid Models
Published on: January 14, 2020
Pancreatic Ductal Organoids React Kras Dependent to the Removal of Tumor Suppressive Roadblocks
Lukas Perkhofer1, Melanie Engler1, Johann Gout1
1Department of Internal Medicine I, University Hospital Ulm, Albert Einstein Allee 23, 89081 Ulm, Germany.
Abstract:
Pancreatic ductal adenocarcinoma (PDAC) is still the Achilles heel in modern oncology, with an increasing incidence accompanied by a persisting high mortality. The developmental process of PDAC is thought to be stepwise via precursor lesions and sequential accumulation of mutations. Thereby, current sequencing studies recapitulate this genetic heterogeneity in PDAC and show besides a handful of driver mutations (KRAS, TP53) a plethora of passenger mutations that allow to define subtypes. However, modeling the mutations of interest and their effects is still challenging. Interestingly, organoids have the potential to recapitulate in vitro, the in vivo characteristics of the tissue they originate from. Here, we could establish and develop tools allowing us to isolate, culture, and genetically modify ductal mouse organoids. Transferred to known effectors in the IPMN-PDAC sequence, we could reveal significantly increased proliferative and self-renewal capacities for PTEN and RNF43 deficiency in the context of oncogenic KRASG12D in mouse pancreatic organoids. Overall, we were able to obtain promising data centering ductal organoids in the focus of future PDAC research.
Insights
Mouse pancreatic organoids were genetically modified to model pancreatic ductal adenocarcinoma (PDAC). PTEN and RNF43 deficiency enhanced KRAS-driven proliferation, offering new avenues for PDAC research.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Pancreatic ductal adenocarcinoma (PDAC) presents a significant challenge in oncology due to high mortality and increasing incidence.
- PDAC development is a stepwise process involving precursor lesions and accumulating mutations, leading to genetic heterogeneity.
- Modeling specific mutations and their functional impact in PDAC remains a challenge.
Purpose of the Study:
- To establish and utilize genetically modified mouse pancreatic organoids for studying PDAC development.
- To investigate the effects of specific genetic alterations, such as PTEN and RNF43 deficiency, in the context of oncogenic KRAS.
- To explore the potential of organoids in recapitulating in vitro the in vivo characteristics relevant to PDAC.
Main Methods:
- Isolation, culture, and genetic modification of ductal mouse organoids.
- Introduction of key effectors implicated in the IPMN-PDAC sequence.
- Assessment of cellular proliferation and self-renewal capacities.
Main Results:
- Successfully established and developed tools for genetically modifying mouse pancreatic ductal organoids.
- Demonstrated that PTEN and RNF43 deficiency significantly increases proliferative and self-renewal capacities.
- Observed these effects in the context of oncogenic KRAS G12D mutation.
Conclusions:
- Genetically modified mouse pancreatic organoids are a valuable tool for PDAC research.
- PTEN and RNF43 deficiencies, alongside KRAS G12D, play crucial roles in promoting PDAC progression.
- This study provides a foundation for future research focusing on ductal organoids in PDAC.
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