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Updated: Dec 28, 2025
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Isolation of Proximal Fluids to Investigate the Tumor Microenvironment of Pancreatic Adenocarcinoma
Published on: November 5, 2020
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Associations between metabolites and pancreatic cancer risk in a large prospective epidemiological study
Rachael Stolzenberg-Solomon1, Andriy Derkach2, Steven Moore3
1Metabolic Nutrition Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland, USA rs221z@nih.gov.
Gut
|February 16, 2020
Summary
Prediagnostic metabolites linked to subclinical disease and metabolic factors are associated with pancreatic ductal adenocarcinoma (PDAC). These findings may aid in early detection of PDAC.
Area of Science:
- Metabolomics
- Oncology
- Epidemiology
Background:
- Pancreatic ductal adenocarcinoma (PDAC) is a deadly cancer with limited early detection methods.
- Identifying prediagnostic biomarkers could improve patient outcomes.
Purpose of the Study:
- To investigate associations between prediagnostic serum metabolites and incident PDAC.
- To identify potential biomarkers for early PDAC detection.
Main Methods:
- Untargeted analysis of 554 known metabolites in prediagnostic serum from two prospective nested case-control studies.
- Conditional logistic regression and fixed-effects meta-analysis were used to assess associations.
- Metabolites were measured using high-resolution mass spectrometry.
Main Results:
- Thirty-one metabolites showed significant associations with PDAC risk (FDR <0.05).
- Several dipeptides (e.g., glycylvaline, aspartylphenylalanine) and amino acids (aspartate, glutamate) were positively associated with PDAC.
- Other metabolites, including cysteine-glutathione disulfide, were inversely associated with PDAC risk.
Conclusions:
- Prediagnostic metabolites associated with subclinical disease, gamma-glutamyl cycle metabolism, and insulin resistance are linked to PDAC.
- These findings highlight the potential of metabolomics for early PDAC detection.
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