# An investigation for phylogenetic characterization of human pancreatic cancer microbiome by 16S rDNA sequencing and bioinformatics techniques

**Authors:** Colby Hunter, Khadimou Dia, Julia Boykins, Karrington Perry, Narendra Banerjee, Jazmine Cuffee, Erik Armstrong, Gabrielle Morgan, Hirendra Nath Banerjee, Anasua Banerjee, Santanu Bhattacharya

PMC · DOI: 10.5430/jst.v14n1p1 · Journal of solid tumors · 2025-07-30

## TL;DR

This study explores the microbiome in pancreatic cancer using DNA sequencing and bioinformatics to identify microbial differences between cancer and healthy mice.

## Contribution

The paper presents a phylogenetic analysis of the pancreatic cancer microbiome in mice, identifying differentially abundant microbiota.

## Key findings

- Differentially abundant microbiota were identified in pancreatic cancer mice compared to healthy controls.
- 16S rDNA sequencing and bioinformatics revealed microbial signatures associated with pancreatic cancer.
- The study provides insights into the role of the microbiome in pancreatic cancer pathogenesis.

## Abstract

Pancreatic cancer is a significant public health concern, with increasing incidence rates and limited treatment options. Recent studies have highlighted the role of the human microbiome, particularly the gut microbiota, in the development and progression of this disease. Microbial dysbiosis, characterized by alterations in the composition and function of the gut microbiota, has been implicated in pancreatic carcinogenesis through mechanisms involving chronic inflammation, immune dysregulation, and metabolic disturbances. Researchers have identified specific microbial signatures associated with pancreatic cancer, offering potential biomarkers for early detection and prognostication. By leveraging advanced sequencing and bioinformatics tools, scientists have delineated differences in the gut microbiota between pancreatic cancer patients and healthy individuals, providing insights into disease pathogenesis and potential diagnostic strategies. Moreover, the microbiome holds promise as a therapeutic target in pancreatic cancer treatment. Interventions aimed at modulating the microbiome, such as probiotics, prebiotics, and fecal microbiota transplantation, have demonstrated potential in enhancing the efficacy of existing cancer therapies, including chemotherapy and immunotherapy. These approaches can influence immune responses, alter tumor microenvironments, and sensitize tumors to treatment, offering new avenues for improving patient outcomes and overcoming therapeutic resistance. Overall, understanding the complex interplay between the microbiome and pancreatic cancer is crucial for advancing our knowledge of disease mechanisms and identifying innovative therapeutic strategies. Here we report phylogenetic analysis of the 16S rDNA microbial sequences of the pancreatic cancer mice microbiome and corresponding age matched healthy mice microbiome. We successfully identified differentially abundant microbiota in pancreatic cancer.

## Linked entities

- **Diseases:** pancreatic cancer (MONDO:0005192)
- **Species:** Mus musculus (taxon 10090)

## Full-text entities

- **Genes:** Trp53-ps (transformation related protein 53, pseudogene) [NCBI Gene 22060], Lcn2 (lipocalin 2) [NCBI Gene 16819] {aka 24p3, NRL, Sip24}, Il2 (interleukin 2) [NCBI Gene 16183] {aka Il-2}, Gzmb (granzyme B) [NCBI Gene 14939] {aka CCP-1/C11, CCP1, Ctla-1, Ctla1, GZB}, Pdcd1 (programmed cell death 1) [NCBI Gene 18566] {aka Ly101, PD-1, Pdc1}, Il10 (interleukin 10) [NCBI Gene 16153] {aka CSIF, If2a, Il-10}, Cd80 (CD80 antigen) [NCBI Gene 12519] {aka B71, Cd28l, Ly-53, Ly53, MIC17, TSA1}, Gapdh (glyceraldehyde-3-phosphate dehydrogenase) [NCBI Gene 14433] {aka Gapd}, Tnf (tumor necrosis factor) [NCBI Gene 21926] {aka DIF, TNF-a, TNF-alpha, TNFSF2, TNFalpha, Tnfa}, Cd274 (CD274 antigen) [NCBI Gene 60533] {aka A530045L16Rik, B7h1, Pdcd1l1, Pdcd1lg1, Pdl1}, Il6 (interleukin 6) [NCBI Gene 16193] {aka Il-6}, 16S (DNA segment, 16S) [NCBI Gene 27471], Mki67 (antigen identified by monoclonal antibody Ki 67) [NCBI Gene 17345] {aka D630048A14Rik, Ki-67, Ki67}, Ret (ret proto-oncogene) [NCBI Gene 19713] {aka PTC, RET51, RET9, c-Ret}, Ifng (interferon gamma) [NCBI Gene 15978] {aka IFN-g, If2f, Ifg}
- **Diseases:** multiple organ failure (MESH:D009102), sarcoma (MESH:D012509), CRC (MESH:D015179), bacteremia (MESH:D016470), urothelial carcinoma (MESH:D014523), autism (MESH:D001321), breast cancer (MESH:D001943), pancreatic carcinogenesis (MESH:D063646), endometrial cancer (MESH:D016889), Lewis Lung Cancer (MESH:D008175), SHARING STATEMENT (MESH:D012753), bacterial infection (MESH:D001424), RCC (MESH:D002292), dysbiosis (MESH:D064806), Inflammatory (MESH:D007249), Tumor (MESH:D009369), adenocarcinomas (MESH:D000230), immune dysregulation (OMIM:614878), prostate cancer (MESH:D011471), colorectal, gastric, lung, ovarian, and pancreatic (MESH:D010195), metabolic disturbances (MESH:D024821), Clostridium perfringens infection (MESH:D003015), polyp (MESH:D011127), jejunal adenocarcinoma (MESH:D007580), melanoma (MESH:D008545), deaths (MESH:D003643), Pancreatic cancer (MESH:D010190)
- **Chemicals:** A. muciniphila (-), tobramycin (MESH:D014031), carbon (MESH:D002244), ampicillin (MESH:D000667), sugar (MESH:D000073893), iron (MESH:D007501), Luciferin (MESH:D000090562), erythromycin (MESH:D004917), CO2 (MESH:D002245), doxycycline (MESH:D004318), lincomycin (MESH:D008034), PBS (MESH:D007854), amoxicillin-clavulanate (MESH:D019980), metronidazole (MESH:D008795), ciprofloxacin (MESH:D002939), cisplatin (MESH:D002945), agarose (MESH:D012685), piperacillin-tazobactam (MESH:D000077725)
- **Species:** Sus scrofa (pig, species) [taxon 9823], Enterocloster bolteae (species) [taxon 208479], Helicobacter pylori (species) [taxon 210], Homo sapiens (human, species) [taxon 9606], Alistipes putredinis (species) [taxon 28117], Akkermansia muciniphila (species) [taxon 239935], Lactobacillus intestinalis (species) [taxon 151781], Escherichia coli (E. coli, species) [taxon 562], gut metagenome (species) [taxon 749906], Mus musculus (house mouse, species) [taxon 10090], Bacteria Latreille et al. 1825 (Bacteria stick insect, genus) [taxon 629395], Robinsoniella peoriensis (species) [taxon 180332], Fusobacterium nucleatum (species) [taxon 851], Enterococcus hirae (species) [taxon 1354], Saccharomyces cerevisiae (baker's yeast, species) [taxon 4932], Clostridioides difficile (species) [taxon 1496]
- **Cell lines:** MCA-205 — Mus musculus (Mouse), Mouse fibrosarcoma, Cancer cell line (CVCL_VR90), PANC-1 — Homo sapiens (Human), Pancreatic ductal adenocarcinoma, Cancer cell line (CVCL_0480), THP-1 — Homo sapiens (Human), Childhood acute monocytic leukemia, Cancer cell line (CVCL_0006)

## Full text

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## Figures

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## References

53 references — full list in the complete paper: https://tomesphere.com/paper/PMC12309466/full.md

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Source: https://tomesphere.com/paper/PMC12309466