Microbiota Interactions in Helminth Infections

The interplay between parasitic helminths and the host’s commensal microbiota represents a dynamic axis of host–microbe interactions with profound implications for health and disease. Helminths can reshape bacterial communities in the gut through direct competition for nutrients, modulation of mucosal barriers and secretion of bioactive molecules. In turn, resident microbes influence helminth colonisation, development and the intensity of infection by affecting local immune responses and metabolic outputs. A growing body of work demonstrates that helminth-driven shifts in microbial composition often lead to the production of anti-inflammatory metabolites, notably short-chain fatty acids, which promote regulatory T-cell expansion and attenuate type 2-mediated pathology. These processes underpin emerging therapeutic concepts, from controlled helminth therapies for inflammatory disorders to targeted microbiota interventions that support deworming efforts. As helminthiasis remains endemic in many regions, understanding these tripartite interactions is key to designing integrated strategies for parasite control, restoration of gut homeostasis and management of immune-mediated diseases worldwide.

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Microbiota Interactions in Helminth Infections publication trend

The graph below shows the total number of articles in microbiota interactions in helminth infections across all publications each year (not limited to Nature Index journals).

Technical terms

Microbiota: The community of microorganisms, including bacteria, archaea and fungi, that inhabit a particular environment such as the gut.

Helminth: A parasitic worm, such as a nematode or cestode, that can infect the host gastrointestinal tract or other tissues.

Dysbiosis: A disrupted microbial community structure that deviates from a healthy equilibrium, often associated with disease.

Type 2 immunity: An arm of the immune response characterised by cytokines such as IL-4, IL-5 and IL-13, which mediate defence against helminths and regulate allergic inflammation.

Regulatory T cell (Treg): A subset of CD4+ T cells that suppress excessive immune activation and promote tolerance, often identified by expression of the transcription factor Foxp3.

Short-chain fatty acid (SCFA): Metabolic products—such as acetate, propionate and butyrate—generated by bacterial fermentation of dietary fibres, which modulate host immunity and epithelial integrity.

References

1. Akkermansia muciniphila: a deworming partner independent of type 2 immunity. Gut Microbes (2024).
2. Taeniasis impacts human gut microbiome composition and function. The ISME Journal: Multidisciplinary Journal of Microbial Ecology (2024).
3. Interaction between tissue-dwelling helminth and the gut microbiota drives mucosal immunoregulation. npj Biofilms and Microbiomes (2023).