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Updated: Aug 18, 2025
Isolation of Proximal Fluids to Investigate the Tumor Microenvironment of Pancreatic Adenocarcinoma
Published on: November 5, 2020
The Microbiome in PDAC-Vantage Point for Future Therapies?
Nina Pfisterer1,2, Catharina Lingens1, Cathleen Heuer1
1Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Goettingen, 37075 Goettingen, Germany.
Abstract:
Microorganisms have been increasingly implicated in the pathogenesis of malignant diseases, potentially affecting different hallmarks of cancer. Despite the fact that we have recently gained tremendous insight into the existence and interaction of the microbiome with neoplastic cells, we are only beginning to understand and exploit this knowledge for the treatment of human malignancies. Pancreatic ductal adenocarcinoma (PDAC) is an aggressive solid tumor with limited therapeutic options and a poor long-term survival. Recent data have revealed fascinating insights into the role of the tumoral microbiome in PDAC, with profound implications for survival and potentially therapeutic outcomes. In this review, we outline the current scientific knowledge about the clinical and translational role of the microbiome in PDAC. We describe the microbial compositions in healthy and tumoral pancreatic tissue and point out four major aspects of the microbiome in PDAC: pathogenesis, diagnosis, treatment, and prognosis. However, caution must be drawn to inherent pitfalls in analyzing the intratumoral microbiome. Among others, contamination with environmental microbes is one of the major challenges. To this end, we discuss different decontamination approaches that are crucial for clinicians and scientists alike to foster applicability and physiological relevance in this translational field. Without a definition of an exact and reproducible intratumoral microbial composition, the exploitation of the microbiome as a diagnostic or therapeutic tool remains theoretical.
Insights
The tumor microbiome influences pancreatic cancer (pancreatic ductal adenocarcinoma, PDAC) development and outcomes. Understanding intratumoral microbes is key for new diagnostic and therapeutic strategies, but contamination challenges must be addressed.
Area of Science:
- Oncology
- Microbiology
- Gastroenterology
Background:
- Microorganisms are increasingly recognized in cancer development, impacting various cancer hallmarks.
- The tumor microbiome's role in pancreatic ductal adenocarcinoma (PDAC), an aggressive cancer with poor survival, is a growing area of research.
- Current therapeutic options for PDAC are limited, highlighting the need for novel treatment strategies.
Purpose of the Study:
- To review the clinical and translational significance of the microbiome in pancreatic ductal adenocarcinoma (PDAC).
- To explore microbial compositions in healthy and cancerous pancreatic tissues.
- To discuss the microbiome's role in PDAC pathogenesis, diagnosis, treatment, and prognosis.
Main Methods:
- Literature review synthesizing current scientific knowledge on the PDAC microbiome.
- Analysis of microbial compositions in healthy versus tumoral pancreatic tissue.
- Discussion of challenges in intratumoral microbiome analysis, including microbial contamination.
Main Results:
- Recent data reveal significant insights into the tumoral microbiome's impact on PDAC survival and therapeutic potential.
- Distinct microbial compositions exist in healthy and PDAC tissues.
- Contamination is a major challenge in analyzing the intratumoral microbiome, affecting reproducibility and relevance.
Conclusions:
- The microbiome plays a critical role in pancreatic ductal adenocarcinoma (PDAC) pathogenesis, diagnosis, treatment, and prognosis.
- Addressing contamination issues is crucial for accurate intratumoral microbiome analysis.
- Defining a reproducible intratumoral microbial composition is essential for leveraging the microbiome as a diagnostic or therapeutic tool in PDAC.
