<abstract xmlns="http://www.w3.org/1999/xhtml"><sec id="j_jvetres-2020-0027_s_005_w2aab3b7c36b1b6b1aab1c14b1Aa"><h3>Introduction</h3><p>Toll-like receptors (TLRs) play an important role in fast activation of the immune response to a variety of pathogens, including parasites. In this study, we focused on TLR2, because this receptor is one of the best known and most frequently analysed members of the TLR family. The aim of this study was to assess the effect of <italic>Trichinella spiralis</italic> on expression of TLR2 during the intestinal stage of infection.</p></sec><sec id="j_jvetres-2020-0027_s_006_w2aab3b7c36b1b6b1aab1c14b2Aa"><h3>Material and Methods</h3><p>The experimental material consisted of isolates prepared from the intestines (jejunum and colon) of BALB/c mice infected with <italic>T. spiralis</italic> taken at 4, 8, and 16 days post infection.</p></sec><sec id="j_jvetres-2020-0027_s_007_w2aab3b7c36b1b6b1aab1c14b3Aa"><h3>Results</h3><p>Our results based on quantitative real-time PCR showed that the mRNA level for TLR2 was statistically significantly higher in the jejuna of mice infected with <italic>T. spiralis</italic> than in this tissue of uninfected mice. In addition, the presence of TLR2 protein in the intestinal phase of trichinellosis was confirmed by a strong positive immunohistochemical reaction.</p></sec><sec id="j_jvetres-2020-0027_s_008_w2aab3b7c36b1b6b1aab1c14b4Aa"><h3>Conclusion</h3><p>Our results indicate that infection with <italic>T. spiralis</italic> changes the expression of TLR2 in the small intestine of the mouse host and suggest a contribution of these receptors to the host defence mechanisms during experimental trichinellosis.</p></sec></abstract>

IntroductionToll-like receptors (TLRs) play an important role in fast activation of the immune response to a variety of pathogens, including parasites. In this study, we focused on TLR2, because this receptor is one of the best known and most frequently analysed members of the TLR family. The aim of this study was to assess the effect of Trichinella spiralis on expression of TLR2 during the intestinal stage of infection.Material and MethodsThe experimental material consisted of isolates prepared from the intestines (jejunum and colon) of BALB/c mice infected with T. spiralis taken at 4, 8, and 16 days post infection.ResultsOur results based on quantitative real-time PCR showed that the mRNA level for TLR2 was statistically significantly higher in the jejuna of mice infected with T. spiralis than in this tissue of uninfected mice. In addition, the presence of TLR2 protein in the intestinal phase of trichinellosis was confirmed by a strong positive immunohistochemical reaction.ConclusionOur results indicate that infection with T. spiralis changes the expression of TLR2 in the small intestine of the mouse host and suggest a contribution of these receptors to the host defence mechanisms during experimental trichinellosis.

Changes in the expression of TLR2 during the intestinal phase of trichinellosis

Journal of Veterinary Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Changes in the expression of TLR2 during the intestinal phase of trichinellosis"}

IntroductionToll-like receptors (TLRs) play an important role in fast activation of the immune response to a variety of pathogens, including parasites. In this...

Days post infection (dpi)	Expression of mRNA tlr2 in the jejunum	Expression of mRNA tlr2 in the colon
0 (uninfected)	0.7 ± 0.19	0.6 ± 0.16
4	1.5 ± 0.24*	0.7 ± 0.04
8	1.4 ± 0.26*	0.6 ± 0.07
16	1.4 ± 0.23*	0.6 ± 0.10

Changes in the expression of TLR2 during the intestinal phase of trichinellosis

Data publikacji: 21 kwi 2020

Zakres stron: 269 - 274

Otrzymano: 22 maj 2019

Przyjęty: 03 kwi 2020

DOI: https://doi.org/10.2478/jvetres-2020-0027

Słowa kluczowe
mice, toll-like receptor 2, quantitative real-time PCR, immunohistochemical staining

© 2020 A. Wojtkowiak-Giera et al. published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

Fig 2

Expression of tlr 2 at the mRNA level in the intestines of uninfected and T. spiralis-infected mice determined using qPCR

Changes in the expression of TLR2 during the intestinal phase of trichinellosis

Data publikacji: 21 kwi 2020

Zakres stron: 269 - 274

Otrzymano: 22 maj 2019

Przyjęty: 03 kwi 2020

DOI: https://doi.org/10.2478/jvetres-2020-0027

Słowa kluczowemice, toll-like receptor 2, quantitative real-time PCR, immunohistochemical staining

© 2020 A. Wojtkowiak-Giera et al. published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

Fig 2

Expression of tlr 2 at the mRNA level in the intestines of uninfected and T. spiralis-infected mice determined using qPCR

Słowa kluczowe
mice, toll-like receptor 2, quantitative real-time PCR, immunohistochemical staining