Taxonomy, carcinogenic mechanisms, and advanced molecular diagnosis of Fusobacterium nucleatum in colorectal cancer: from bench to clinical practice - Report - MDSpire

Taxonomy, carcinogenic mechanisms, and advanced molecular diagnosis of Fusobacterium nucleatum in colorectal cancer: from bench to clinical practice

  • By

  • Bin Li

  • Yifei Dong

  • Yifei Dai

  • Mengpei Zhang

  • Zhenwei Zou

  • Hai Yang

  • June 29, 2026

  • 0 min

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Clinical Report: Classification, cancer-causing mechanisms, and diagnostics of Fusobacterium nucleatum in colorectal cancer

Overview

Fusobacterium nucleatum (Fn) is identified as an oncogenic organism linked to colorectal cancer (CRC), influencing tumorigenesis through various mechanisms.

Background

Colorectal cancer is a leading cause of cancer mortality, and understanding the role of Fusobacterium nucleatum in its pathogenesis is crucial for developing effective diagnostic and therapeutic strategies.

Data Highlights

No numerical data or trial results were provided in the source material.

Key Findings

  • Fusobacterium nucleatum is implicated in colorectal cancer through oncogenic signaling activation and immune microenvironment modulation.
  • Technological advancements have improved Fn detection methods, transitioning from culture-based assays to high-resolution techniques.
  • Fn's presence is associated with dysbiosis and may contribute to tumor progression and poor treatment outcomes.
  • Current clinical guidelines do not incorporate Fn or microbiome-based assays in CRC diagnostics.
  • Research indicates that specific Fn subspecies may dominate CRC niches.

Clinical Implications

The integration of Fusobacterium nucleatum detection into clinical practice is under investigation, but challenges in standardization of diagnostic platforms exist.

Conclusion

Fusobacterium nucleatum represents a significant area of research in colorectal cancer.

Related Resources & Content

  1. The ASCO Post, 2024 -- Subtype of Fusobacterium nucleatum May Be Linked to Colorectal Cancer Progression and Poor Outcomes
  2. ADA News, 2025 -- ADA Forsyth Friday: Researchers identify cellular protein that may help inhibit key oral microbe also associated with colorectal cancer
  3. Frontiers in Immunology, 2026 -- Multidimensional exploration of the relationship between gut microbiota and colorectal cancer: focus on clinical tumorigenesis and treatment
  4. Metastatic colorectal cancer: ESMO Clinical Practice Guideline for diagnosis, treatment and follow-up - Tampere University Research Portal
  5. A distinct Fusobacterium nucleatum clade dominates the colorectal cancer niche - PubMed
  6. The ASCO Post — Decreased Diversity of Gut Bacteria Associated With  Risk of Colorectal Cancer
  7. Metastatic colorectal cancer: ESMO Clinical Practice Guideline for diagnosis, treatment and follow-up - Tampere University Research Portal
  8. A distinct Fusobacterium nucleatum clade dominates the colorectal cancer niche - PubMed
  9. Preoperative metronidazole treatment to evaluate its efficacy in reducing Fusobacterium nucleatum colonisation in colorectal cancer patients: a proof-of-concept trial - PubMed

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