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Updated: Jun 20, 2026
Reprogramming Pancreatic Ductal Adenocarcinoma to Pluripotency
Published on: February 2, 2024
MDM2 SNP309 associates with accelerated pancreatic adenocarcinoma formation
Lukasz F Grochola1, Thomas H Müller, Gareth L Bond
1Department of General, Visceral and Transplantation Surgery, University of Ulm, Ulm, Germany. lukasz.grochola@ludwig.ox.ac.uk
Objectives:
The G-allele of a single nucleotide polymorphism in the promoter of the MDM2 gene (MDM2 SNP309, T/G) associates with the acceleration of tumor formation and an increased risk for developing various malignancies. In this report, the possible role of the MDM2 SNP309 locus with regard to sex, age, and p53 mutational status in the development and progression of pancreatic ductal adenocarcinoma (PDAC) was examined.
Methods:
One hundred three PDAC patients with comprehensive clinical, histopathologic, and follow-up data and 499 controls were included into the study and their MDM2 SNP309 genotypes obtained.
Results:
Interestingly, the G-allele of MDM2 SNP309 is shown to associate with a 9-year earlier age of PDAC onset (P = 0.021). However, in contrast to studies of other tumor types, these observations are made predominantly in men and not women. Conditions of male PDAC patients with a G/G genotype are diagnosed at a mean of 12 years earlier than T-allele carriers (P = 0.0032). Furthermore, particularly younger male patients present a significant enrichment of the G-allele (P = 0.019).
Conclusions:
These observations suggest a novel role of the MDM2 SNP309 locus in regulating PDAC tumor formation in a male-specific manner.
Insights
The MDM2 SNP309 G-allele is linked to earlier pancreatic ductal adenocarcinoma (PDAC) onset, primarily in men. This genetic factor influences PDAC development specifically in males, suggesting a sex-specific role.
Area of Science:
- Oncology
- Genetics
- Molecular Biology
Background:
- The MDM2 SNP309 T/G polymorphism influences tumor formation and malignancy risk.
- Understanding genetic predispositions in pancreatic ductal adenocarcinoma (PDAC) is crucial for early detection and treatment.
Purpose of the Study:
- To investigate the association of the MDM2 SNP309 locus with sex, age, and p53 mutational status in PDAC development.
- To explore the role of MDM2 SNP309 in the progression of pancreatic cancer.
Main Methods:
- Genotyping of MDM2 SNP309 in 103 PDAC patients and 499 controls.
- Analysis of clinical, histopathologic, and follow-up data in relation to genotype.
Main Results:
- The MDM2 SNP309 G-allele correlated with a 9-year earlier onset of PDAC (P=0.021).
- This association was predominantly observed in males, with G/G genotype males diagnosed 12 years earlier (P=0.0032).
- Younger males showed a significant enrichment of the G-allele (P=0.019).
Conclusions:
- The MDM2 SNP309 locus plays a significant role in PDAC development.
- The effect of MDM2 SNP309 on PDAC appears to be male-specific.
