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Updated: Jul 1, 2026

Transformation of Probiotic Yeast and Their Recovery from Gastrointestinal Immune Tissues Following Oral Gavage in Mice
Published on: February 8, 2016
Yeasts in the gastrointestinal tract
Katherine D Mueller1, Soo Chan Lee1
1Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, United States.
Abstract:
The human gastrointestinal (GI) microbiota has come to be recognized as a modulator of health. However, interest in fungi and their function as members of the microbiota has lagged behind interest in bacteria. Despite the lack of historical interest, fungi are prevalent in the human GI tract and have an outsized impact on host immunity. In this review, we aim to examine the associations and potential impact of yeasts on human health outcomes. This review summarizes the associations between yeasts and inflammatory bowel diseases, highlights the predictive service that yeasts may provide in cancer therapy, and explores the possibility of yeasts as therapeutic effectors. There remain significant challenges in data analysis and identifying the relevance of fungal morphology; however, the pathways for clinical translation open to yeasts in the GI tract make these challenges worth overcoming.
Insights
Fungi, particularly yeasts, play a significant role in human gut health and immunity. This review explores their associations with inflammatory bowel diseases, potential in cancer therapy, and therapeutic applications.
Area of Science:
- Microbiology
- Immunology
- Gastroenterology
Background:
- The human gastrointestinal (GI) microbiota modulates host health.
- Interest in gut fungi, especially yeasts, has historically lagged behind bacteria.
- Fungi are prevalent in the GI tract and significantly impact host immunity.
Purpose of the Study:
- To examine the associations between yeasts and human health outcomes.
- To review the role of yeasts in inflammatory bowel diseases (IBD).
- To explore the potential of yeasts in cancer therapy and as therapeutic agents.
Main Methods:
- Literature review of existing studies on gut fungi and human health.
- Analysis of associations between specific yeasts and IBD.
- Evaluation of current research on fungal biomarkers for cancer therapy.
- Exploration of the therapeutic potential of yeasts.
Main Results:
- Yeasts are associated with inflammatory bowel diseases.
- Fungal presence may predict outcomes in cancer therapy.
- Yeasts show potential as therapeutic effectors in the GI tract.
Conclusions:
- Despite challenges in data analysis and understanding fungal morphology, yeasts offer promising clinical translation pathways.
- Further research into the GI mycobiome is warranted to harness its therapeutic potential.
- Yeasts represent a significant, yet understudied, component of the human gut.
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