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Osteogenic-like Phenotypic Reprogramming Is Associated with Reduced Malignant Behaviors in Pancreatic Cancer Cells
Gong Chen1, Xiaoyan Huang1, Dan Li1
1Department of General, Visceral & Transplant Surgery, Section Surgical Research, University of Heidelberg, 69120 Heidelberg, Germany.
International Journal of Molecular Sciences
|June 12, 2026
Summary
Pancreatic cancer cells can develop bone-like traits, showing reduced malignancy and altered gene expression. This osteogenic plasticity involves the MAPK-ERK-RUNX2 pathway and impacts tumor behavior.
Area of Science:
- Oncology
- Cell Biology
- Molecular Biology
Background:
- Pancreatic tumors often show calcification, hinting at potential bone-related cell changes.
- Pancreatic ductal adenocarcinoma (PDAC) cells may exhibit phenotypic plasticity, adapting to their microenvironment.
Purpose of the Study:
- To investigate if PDAC cells can develop osteogenic-like features under specific induction.
- To analyze the associated phenotypic and molecular alterations in PDAC cells during osteogenic induction.
Main Methods:
- Osteogenic induction of PDAC and non-malignant pancreatic cells.
- Assessment of mineralization, alkaline phosphatase (ALP) activity, osteogenic markers, and malignant phenotypes.
- RNA sequencing for transcriptional profiling and mechanistic studies involving MEK inhibition and RUNX2 knockdown.
Main Results:
- Osteogenic induction caused mineralization and increased ALP activity in some PDAC cells, upregulating markers like RUNX2 and SPP1.
- Induced PDAC cells showed decreased migration, invasion, proliferation, and clonogenicity.
- Transcriptomic analysis revealed activated osteogenesis and calcium transport pathways, with suppressed cell cycle programs; MAPK-ERK-RUNX2 signaling was implicated.
Conclusions:
- PDAC cells can acquire osteogenic-like features, characterized by transcriptional reprogramming and reduced malignant behaviors.
- The MAPK-ERK-RUNX2 pathway plays a role in this osteogenic plasticity.
- These findings suggest tumor calcification in PDAC may be linked to adaptive cellular reprogramming rather than strict lineage commitment.
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