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The Hygiene Theory Harnessing Helminths and Their Ova to Treat Autoimmunity
Abstract
The incidence of autoimmune diseases is increasing in Western countries, possibly due to the improved sanitary conditions and reduced exposure to infections in childhood (the hygiene hypothesis). There is an ongoing debate whether infection prevents or precipitates autoimmune diseases. Various helminths species used in several animal models were shown to limit inflammatory activity in a variety of diseases including inflammatory bowel disease, multiple sclerosis, type 1 diabetes, rheumatoid arthritis, and systemic lupus erythematosus. At present the scientific data is based mostly on experimental animal models; however, there is an increasing body of evidence in a number of clinical trials being conducted. Herein we review several clinical trials evaluating the anti-inflammatory effects of helminths and assessing their association with different autoimmune diseases, including inflammatory bowel disease, multiple sclerosis, and autoimmune liver diseases. We also describe the common pathways by which helminths induce immune modulation and the key changes observed in the host immune system following exposure to helminths. These common pathways include the inhibition of IFN-γ and IL-17 production, promotion of IL-4, IL-10 and TGF-β release, induction of CD4(+) T cell FoxP3(+) expression, and generation of regulatory macrophages, dendritic cells, and B cells. Helminths products are becoming significant candidates for anti-inflammatory agents in this context. However, further resea…
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“These include the induction of regulatory T and B cells, the production of anti-inflammatory cytokines such as IL-10 and TGF-β, the alternative activation of macrophages, and the modulation of IgE-mediated effector pathways”
From Parasites and allergies: a complex bidirectional relationship from evolutionary origins to modern therapeutics (2026) · cites this paper as Ben-Ami Shor et al. 2013
In the citing paper
“Specifically, certain helminths, especially in endemic environments with frequent or prolonged exposure, may attenuate allergic inflammation through several regulatory mechanisms.”
From Parasites and allergies: a complex bidirectional relationship from evolutionary origins to modern therapeutics (2026) · cites this paper as Ben-Ami Shor et al. 2013
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Cited by
Sorted by citations
Packi, K., Świerczewski, D., Klimczak, S., Ochab, D., Gałęziewska, J., Gromek, P., Kruczkowska, W., Płuciennik, E., Kałuzińska-Kołat, Ż., & Kołat, D. (2026) · Antonie van Leeuwenhoek · doi:10.1007/s10482-026-02425-4
Metadata
- Authors
- Ben-Ami Shor, D., Harel, M., Eliakim, R., & Shoenfeld, Y.
- Venue
- Clinical Reviews in Allergy & Immunology
- Published
- 2013-01-17
- Volume
- 45
- Issue
- 2
- Pages
- 211-216
- ISSN
- 1080-0549
- 1559-0267
- Cited by
- 57
- References
- 1
- Language
- en
- Licence
- www.springer.com/tdm (tdm)
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- Ben-Ami Shor, D., Harel, M., Eliakim, R., & Shoenfeld, Y. (2013). The Hygiene Theory Harnessing Helminths and Their Ova to Treat Autoimmunity. Clinical Reviews in Allergy & Immunology. https://doi.org/10.1007/s12016-012-8352-9