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Updated: May 13, 2026
Growing Desmoplastic Three-Dimensional Pancreatic Cancer Spheroids from Co-Culture
Published on: September 27, 2024
3D pancreatic carcinoma spheroids induce a matrix-rich, chemoresistant phenotype offering a better model for drug
Paola Longati1, Xiaohui Jia, Johannes Eimer
1CLINTEC, Karolinska Institutet, Stockholm 14186, Sweden.
Background:
Pancreatic ductal adenocarcinoma (PDAC) is the fourth most common cause of cancer related death. It is lethal in nearly all patients, due to an almost complete chemoresistance. Most if not all drugs that pass preclinical tests successfully, fail miserably in the patient. This raises the question whether traditional 2D cell culture is the correct tool for drug screening. The objective of this study is to develop a simple, high-throughput 3D model of human PDAC cell lines, and to explore mechanisms underlying the transition from 2D to 3D that might be responsible for chemoresistance.
Methods:
Several established human PDAC and a KPC mouse cell lines were tested, whereby Panc-1 was studied in more detail. 3D spheroid formation was facilitated with methylcellulose. Spheroids were studied morphologically, electron microscopically and by qRT-PCR for selected matrix genes, related factors and miRNA. Metabolic studies were performed, and a panel of novel drugs was tested against gemcitabine.
Results:
Comparing 3D to 2D cell culture, matrix proteins were significantly increased as were lumican, SNED1, DARP32, and miR-146a. Cell metabolism in 3D was shifted towards glycolysis. All drugs tested were less effective in 3D, except for allicin, MT100 and AX, which demonstrated effect.
Conclusions:
We developed a high-throughput 3D cell culture drug screening system for pancreatic cancer, which displays a strongly increased chemoresistance. Features associated to the 3D cell model are increased expression of matrix proteins and miRNA as well as stromal markers such as PPP1R1B and SNED1. This is supporting the concept of cell adhesion mediated drug resistance.
Insights
Developing a 3D pancreatic cancer model reveals increased chemoresistance compared to 2D cultures. This 3D system, showing elevated matrix proteins and altered metabolism, offers a more accurate platform for screening pancreatic ductal adenocarcinoma drugs.
Area of Science:
- Oncology
- Biotechnology
- Drug Discovery
Background:
- Pancreatic ductal adenocarcinoma (PDAC) is a lethal cancer with high chemoresistance.
- Current 2D cell cultures often fail to predict drug efficacy in patients.
- There is a critical need for more predictive preclinical models.
Purpose of the Study:
- To develop a high-throughput 3D cell culture model for pancreatic cancer.
- To investigate the mechanisms of chemoresistance in 3D vs. 2D cultures.
- To evaluate drug efficacy using the novel 3D model.
Main Methods:
- Human PDAC and KPC mouse cell lines were cultured in 3D using methylcellulose.
- Morphological, ultrastructural, gene expression (qRT-PCR), and metabolic analyses were performed.
- Drug sensitivity of novel compounds and gemcitabine was tested in 2D and 3D cultures.
Main Results:
- 3D cultures showed significantly increased matrix proteins (lumican, SNED1, DARP32) and miR-146a.
- Cell metabolism shifted towards glycolysis in 3D spheroids.
- Most tested drugs were less effective in 3D, except for allicin, MT100, and AX.
Conclusions:
- A high-throughput 3D cell culture system for pancreatic cancer was successfully developed.
- The 3D model exhibits enhanced chemoresistance, linked to increased matrix proteins and stromal markers.
- Findings support the role of cell adhesion in mediating drug resistance in PDAC.
