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Syphacia Obvelata: A New Hope to Induction of Intestinal Immunological Tolerance in C57bl/6 Mice Publisher Pubmed



Taghipour N1, 2 ; Mosaffa N3 ; Rostaminejad M2 ; Homayoni MM4 ; Mortaz E3, 5 ; Aghdaei HA6
Authors
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Authors Affiliations
  1. 1. Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  2. 2. Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  3. 3. Department of Immunology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  4. 4. Department of Parasitology and Mycology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
  5. 5. Clinical Tuberculosis and Epidemiology Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
  6. 6. Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Source: Korean Journal of Parasitology Published:2017


Abstract

The ability of nematodes to manipulate the immune system of their host towards a Th2 and T regulatory responses has been proposed to suppress the inflammatory response. Clinical trials have proposed a useful effect of helminth infections on improvement of inflammatory disorders. In this study, we investigated the immunomodulatory effect of Syphacia obvelata infection to induce intestinal tolerance in C57BL/6 mice. Mice were infected through the cagemates with self-infected BALB/c mice. Four weeks post-infection, expression levels of IFN-γ, TNF-α, IL-17, and IL-10 were assessed in the supernatant of mesenteric lymph node (MLN) culture. Foxp3+Treg were measured in MLN cells by flow cy-tometry. In the S. obvelata-infected group, the percentage of Tregs (5.2±0.4) was significantly higher than the control (3.6±0.5) (P <0.05). The levels of IL-10 (55.3 ±2.2 vs 35.2 ±3.2), IL-17 (52.9 ±3.8 vs 41 ±1.8), IFN-γ (44.8 ±4.8 vs 22.3±2.3) and TNF-α (71.1±5.8 vs 60.1±3.3) were significantly increased in infected mice compared to the control group (P < 0.05). The above results showed the potential effects of S. obvelata to induce intestinal tolerance. Therefore, it seems that S. obvelata may increase the immunological suppressive function in the intestinal tract. © 2017, Korean Society for Parasitology and Tropical Medicine.
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