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Anti‐Trichuris mucosal responses are maintained during H. bakeri co‐infection despite impaired parasite expulsion

In endemic regions concurrent infection with multiple gastrointestinal (GI) helminth species is more common than single species infection. However, the majority of model helminth infections focus on single species infections leading to a lack of understanding of how co‐infection influences anti‐para...

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Autores principales: Colombo, Stefano A. P., Thompson, Seona, Bancroft, Allison J., Grencis, Richard K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9542692/
https://www.ncbi.nlm.nih.gov/pubmed/35586956
http://dx.doi.org/10.1111/pim.12936
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author Colombo, Stefano A. P.
Thompson, Seona
Bancroft, Allison J.
Grencis, Richard K.
author_facet Colombo, Stefano A. P.
Thompson, Seona
Bancroft, Allison J.
Grencis, Richard K.
author_sort Colombo, Stefano A. P.
collection PubMed
description In endemic regions concurrent infection with multiple gastrointestinal (GI) helminth species is more common than single species infection. However, the majority of model helminth infections focus on single species infections leading to a lack of understanding of how co‐infection influences anti‐parasite immune responses. Here, we use a model co‐infection of Trichuris muris (Tm) and Heligmosomoides bakeri (Hb) to investigate the effect of Hb on anti‐Tm immune responses. We observed a complete impairment of Tm expulsion in immune competent C57BL/6 mice when co‐infected with Hb. This was coupled with reduced cellularity in the colonic mesenteric lymph node (cMLN) proximal to the caecum, however, cMLN cytokine responses and caecal mucosal immune responses in co‐infected mice were not significantly different from mice infected with Tm alone. Interestingly, in immune‐compromised mice, we found co‐infection resulted in enhanced growth and fecundity of female Tm parasites. These data suggest that during helminth‐helminth co‐infection, immune‐independent signals between species may promote survival and growth.
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spelling pubmed-95426922022-10-14 Anti‐Trichuris mucosal responses are maintained during H. bakeri co‐infection despite impaired parasite expulsion Colombo, Stefano A. P. Thompson, Seona Bancroft, Allison J. Grencis, Richard K. Parasite Immunol Original Articles In endemic regions concurrent infection with multiple gastrointestinal (GI) helminth species is more common than single species infection. However, the majority of model helminth infections focus on single species infections leading to a lack of understanding of how co‐infection influences anti‐parasite immune responses. Here, we use a model co‐infection of Trichuris muris (Tm) and Heligmosomoides bakeri (Hb) to investigate the effect of Hb on anti‐Tm immune responses. We observed a complete impairment of Tm expulsion in immune competent C57BL/6 mice when co‐infected with Hb. This was coupled with reduced cellularity in the colonic mesenteric lymph node (cMLN) proximal to the caecum, however, cMLN cytokine responses and caecal mucosal immune responses in co‐infected mice were not significantly different from mice infected with Tm alone. Interestingly, in immune‐compromised mice, we found co‐infection resulted in enhanced growth and fecundity of female Tm parasites. These data suggest that during helminth‐helminth co‐infection, immune‐independent signals between species may promote survival and growth. John Wiley and Sons Inc. 2022-05-31 2022-08 /pmc/articles/PMC9542692/ /pubmed/35586956 http://dx.doi.org/10.1111/pim.12936 Text en © 2022 The Authors. Parasite Immunology published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Articles
Colombo, Stefano A. P.
Thompson, Seona
Bancroft, Allison J.
Grencis, Richard K.
Anti‐Trichuris mucosal responses are maintained during H. bakeri co‐infection despite impaired parasite expulsion
title Anti‐Trichuris mucosal responses are maintained during H. bakeri co‐infection despite impaired parasite expulsion
title_full Anti‐Trichuris mucosal responses are maintained during H. bakeri co‐infection despite impaired parasite expulsion
title_fullStr Anti‐Trichuris mucosal responses are maintained during H. bakeri co‐infection despite impaired parasite expulsion
title_full_unstemmed Anti‐Trichuris mucosal responses are maintained during H. bakeri co‐infection despite impaired parasite expulsion
title_short Anti‐Trichuris mucosal responses are maintained during H. bakeri co‐infection despite impaired parasite expulsion
title_sort anti‐trichuris mucosal responses are maintained during h. bakeri co‐infection despite impaired parasite expulsion
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9542692/
https://www.ncbi.nlm.nih.gov/pubmed/35586956
http://dx.doi.org/10.1111/pim.12936
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