Advancing the Future of Live Biotherapeutics: Faecalibacterium duncaniae Research Service

The human microbiome is no longer viewed as a passive collection of passengers; it is recognized as a sophisticated metabolic organ that dictates the boundaries of health and disease. Among the diverse taxa inhabiting the human gut, the genus Faecalibacterium has emerged as a cornerstone of intestinal homeostasis. Specifically, Faecalibacterium duncaniae-formerly categorized within the broader F. prausnitzii phylogroups-has become a focal point for next-generation probiotic (NGP) development and Live Biotherapeutic Products (LBPs). As a premier Contract Research Organization (CRO) specializing in preclinical microbiome solutions, Creative Biolabs is dedicated to providing the foundational data, specialized assays, and high-quality microbial products necessary to transition F. duncaniae from a laboratory curiosity to a clinical reality. Our mission is to bridge the gap between complex microbial ecology and rigorous pharmaceutical standards, ensuring that your therapeutic candidates are backed by robust, reproducible, and translatable evidence.

Isolation of potential probiotics. (Creative Biolabs Authorized)

Overview: The Significance of Faecalibacterium duncaniae

Faecalibacterium duncaniae is an anaerobic, Gram-positive bacterium that belongs to the Ruminococcaceae family. While Faecalibacterium prausnitzii was long considered a single species, recent genomic and phenotypic reclassifications have identified F. duncaniae as a distinct and vital member of the human colonic microbiota. It is often cited as one of the most abundant bacteria in the healthy adult gut, typically comprising 5% to 15% of the total bacterial population.

The primary biological significance of F. duncaniae lies in its role as a "butyrate factory." Through the fermentation of dietary fibers, it produces high concentrations of butyrate, a short-chain fatty acid (SCFA) that serves as the primary energy source for colonocytes. Beyond energy production, butyrate acts as a signaling molecule that maintains the integrity of the intestinal barrier and modulates the mucosal immune system. Research has consistently shown that a depletion of F. duncaniae is a hallmark of "dysbiosis" in various systemic and localized inflammatory conditions. Unlike traditional probiotics like Lactobacillus or Bifidobacterium, F. duncaniae is an extremely oxygen-sensitive (EOS) bacterium, making it significantly harder to isolate, culture, and stabilize. This complexity is exactly why specialized preclinical services are required to unlock its therapeutic potential.

Comprehensive Preclinical Research Services

Our CRO provides an end-to-end service platform specifically tailored for Faecalibacterium duncaniae and related Live Biotherapeutics. We understand that working with EOS (Extremely Oxygen-Sensitive) strains requires specialized infrastructure and expertise.

Strain Characterization and Selection

  • Whole Genome Sequencing (WGS): Comprehensive genomic mapping to identify antibiotic resistance genes (ARGs) and virulence factors (VFs).
  • Metabolic Profiling: Quantifying SCFA production (Butyrate, Acetate) via GC-MS.
  • Oxygen Tolerance Testing: Determining the survival kinetics of your specific isolate.

In Vitro Efficacy Testing

  • Cell Line Assays: Testing MAM protein secretion on Caco-2 or HT-29 cell lines.
  • Immune Modulation: Co-culture assays with human Peripheral Blood Mononuclear Cells (PBMCs) to measure IL-10 stimulation.

In Vivo Disease Models

We provide validated murine models to demonstrate proof-of-concept:

  • DSS-Induced Colitis Models: Assessing weight loss, Colon Activity Index (DAI), and histopathology.
  • Germ-Free (Axenic) Mouse Studies: Mono-association studies to isolate the specific effects of F. duncaniae.
  • High-Fat Diet (HFD) Models: For metabolic syndrome research.

Pharmacokinetics and Colonization Dynamics

  • qPCR & Metagenomics: Tracking the survival and colonization persistence of the strain post-administration.
  • Bio-distribution Studies: Ensuring the LBP remains localized or reaches the target site effectively.

High-Quality Products for Preclinical Research

To support your in-house R&D, we offer a catalog of standardized products specifically curated for the study of Faecalibacterium.

Product Name Catalog No. Target Product Overview Datasheet Price
Faecalibacterium prausnitzii; 27766 LBST-036FG Faecalibacterium Faecalibacterium prausnitzii is Gram-positive, mesophilic, rod-shaped, anaerobic and is one of the most abundant and important commensal bacteria of the human gut microbiota. Datasheet $2460.00
Faecalibacterium prausnitzii LBST-037FG Faecalibacterium Faecalibacterium prausnitzii was isolated from human feces. It is Gram-positive, mesophilic, rod-shaped, anaerobic. Datasheet $1980.00
Faecalibacterium prausnitzii; Human feces LBST-038FG Faecalibacterium Faecalibacterium prausnitzii was isolated from human feces. It is Gram-positive, mesophilic, rod-shaped, anaerobic. Datasheet $2566.00
Faecalibacterium prausnitzii; from human feces LBST-039FG Faecalibacterium Faecalibacterium prausnitzii was isolated from human feces. It is Gram-positive, mesophilic, rod-shaped, anaerobic. Datasheet $1980.00
Faecalibacterium prausnitzii; 107841 LBGF-0722-GF1 Faecalibacterium Faecalibacterium prausnitzii is Gram-positive, mesophilic, rod-shaped, anaerobic and is one of the most abundant and important commensal bacteria of the human gut microbiota. Datasheet $1560.00
Faecalibacterium prausnitzii; 30944 LBGF-0722-GF2 Faecalibacterium Faecalibacterium prausnitzii is Gram-positive, mesophilic, rod-shaped, anaerobic and is one of the most abundant and important commensal bacteria of the human gut microbiota. Datasheet
Faecalibacterium prausnitzii DNA Standard LBGF-0125-GF5 Faecalibacterium DNA Standard Faecalibacterium prausnitzii DNA Standard product can be used for quantitative research and analysis, assay development, verification, and validation, and laboratory quality control. Datasheet
Faecalibacterium prausnitzii Genomic DNA LBGF-0925-GF1122 Faecalibacterium DNA This product contains high-quality, intact genomic DNA isolated from Faecalibacterium prausnitzii Genomic DNA. It is a purified and ready-to-use DNA sample, ideal for a wide range of molecular biology applications, including PCR, qPCR, and Next-Generation Sequencing. Datasheet $1480.00

Research Application of F. duncaniae in Disease Treatment

The therapeutic applications of F. duncaniae are vast, primarily centered on its potent anti-inflammatory properties and its ability to restore gut barrier function. Researchers are currently exploring its efficacy across several major disease categories:

1. Inflammatory Bowel Disease (IBD)

Crohn's Disease and Ulcerative Colitis are characterized by a marked reduction in Faecalibacterium abundance. F. duncaniae exerts a protective effect by secreting anti-inflammatory peptides, such as Microbial Anti-inflammatory Molecule (MAM). This protein inhibits the NF-κB pathway, thereby reducing the production of pro-inflammatory cytokines like IL-12 and TNF-α while promoting the secretion of the anti-inflammatory cytokine IL-10.

2. Metabolic Disorders

Emerging evidence suggests that F. duncaniae plays a role in metabolic health. By strengthening the gut barrier, it prevents "leaky gut" syndrome—the translocation of lipopolysaccharides (LPS) into the bloodstream. This reduction in metabolic endotoxemia helps mitigate insulin resistance, obesity-related inflammation, and Type 2 Diabetes.

3. Immuno-Oncology

The microbiome is a critical determinant of a patient's response to Immune Checkpoint Inhibitors (ICIs). High levels of Faecalibacterium in the gut have been correlated with improved progression-free survival in melanoma patients treated with anti-PD-1 therapy. F. duncaniae appears to modulate systemic immunity, enhancing the recruitment of T-cells to the tumor microenvironment.

4. Gut-Brain Axis

The butyrate produced by F. duncaniae can cross the blood-brain barrier or influence the vagus nerve. Preliminary studies are investigating its impact on neuropsychiatric conditions such as major depressive disorder and anxiety, where gut inflammation is increasingly recognized as a contributing factor.

Our Advantages: Why Partner With Us?

Specialized Anaerobic Expertise

Our laboratories are equipped with state-of-the-art anaerobic workstations that maintain oxygen levels below 5 ppm at all times, ensuring the viability of even the most sensitive F. duncaniae isolates.

Multi-Omics Integration

We don't just provide raw data. We integrate metagenomics, transcriptomics, and metabolomics to provide a holistic view of how your LBP candidate interacts with the host.

Regulatory Alignment

Our preclinical protocols are designed with IND (Investigational New Drug) applications in mind, following the latest guidelines for Live Biotherapeutic Products.

Proven Track Record

As a specialized CRO, we have successfully supported dozens of biotech companies in moving their microbiome candidates from the "hit" stage to "lead" optimization.

The transition of Faecalibacterium duncaniae from a lab curiosity to a clinical reality represents a milestone in gastroenterology. We believe that restoring this "missing microbe" is not just a treatment but a fundamental correction of the modern human ecosystem. By partnering with us, you are not just outsourcing a study; you are collaborating with experts dedicated to proving that the gut microbiome is the most powerful pharmacy ever discovered.

Let us help you turn your microbial hypothesis into a therapeutic breakthrough.

Frequently Asked Questions (FAQs)

Why is F. duncaniae so much harder to study than Lactobacillus?

Unlike common probiotics, F. duncaniae is an obligate anaerobe that dies within minutes of exposure to ambient air. This requires specialized handling, oxygen-free reagents, and sophisticated equipment throughout the entire research process.

Can F. duncaniae be used as a traditional dietary supplement?

Currently, due to its regulatory status and manufacturing difficulty, it is primarily being developed as a "Live Biotherapeutic Product" (LBP) under pharmaceutical regulations rather than a standard food-grade probiotic.

How do you ensure the stability of the strain during transport?

We use specialized cold-chain logistics and anaerobic transport media. For lyophilized products, we utilize moisture-resistant, vacuum-sealed packaging to maintain maximum viability.

Do you provide genomic analysis for IP protection?

Yes, we provide comprehensive genomic fingerprinting and comparative genomics to help you define and protect your unique therapeutic strain.

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For Research Use Only. Not intended for use in food manufacturing or medical procedures (diagnostics or therapeutics). Do Not Use in Humans.

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