Isospora suis in an epithelial cell culture system - an in vitro model for sexual development in coccidia.

Coccidian parasites are of major importance in animal production, public health and food safety. The most frequently used representative in basic research on this group is Toxoplasma gondii. Although this parasite is well investigated there is no adequate in vitro model for its sexual development av...

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Main Authors: Hanna Lucia Worliczek, Bärbel Ruttkowski, Lukas Schwarz, Kirsti Witter, Waltraud Tschulenk, Anja Joachim
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23861983/pdf/?tool=EBI
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author Hanna Lucia Worliczek
Bärbel Ruttkowski
Lukas Schwarz
Kirsti Witter
Waltraud Tschulenk
Anja Joachim
author_facet Hanna Lucia Worliczek
Bärbel Ruttkowski
Lukas Schwarz
Kirsti Witter
Waltraud Tschulenk
Anja Joachim
author_sort Hanna Lucia Worliczek
collection DOAJ
description Coccidian parasites are of major importance in animal production, public health and food safety. The most frequently used representative in basic research on this group is Toxoplasma gondii. Although this parasite is well investigated there is no adequate in vitro model for its sexual development available and knowledge on this important life cycle phase is therefore scarce. The use of Isosporasuis, a sister taxon to T. gondii and the causative agent of piglet coccidiosis, could provide a solution for this. In the present study an in vitro model for neonatal porcine coccidiosis in cells representative for the in vivo situation in the piglet gut was developed and evaluated. The parasite development was investigated by light and transmission electron microscopy and optimum culture conditions were evaluated. Intestinal porcine epithelial cells (IPEC-J2) adequately representing the natural host cells supported the development of all endogenous life cycle stages of I. suis, including gametocytes and oocysts. A concentration of 5% fetal calf serum in the culture medium led to highest gametocyte densities on day 12 post infection. Low infection doses (≤1 sporozoite for 100 host cells) were best for oocyst and gametocyte development. The presented system can also be used for immunostaining with established antibodies developed against T. gondii (in our case, anti-TgIMC3 antibodies directed against the inner membrane complex 3). The complete life cycle of I. suis in a cell line representing the natural host cell type and species provides a unique model among coccidian parasites and can be used to address a wide range of topics, especially with regard to the sexual development of coccidia.
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spelling doaj.art-e9130874406847148235826567fcda922022-12-21T22:43:36ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0187e6979710.1371/journal.pone.0069797Isospora suis in an epithelial cell culture system - an in vitro model for sexual development in coccidia.Hanna Lucia WorliczekBärbel RuttkowskiLukas SchwarzKirsti WitterWaltraud TschulenkAnja JoachimCoccidian parasites are of major importance in animal production, public health and food safety. The most frequently used representative in basic research on this group is Toxoplasma gondii. Although this parasite is well investigated there is no adequate in vitro model for its sexual development available and knowledge on this important life cycle phase is therefore scarce. The use of Isosporasuis, a sister taxon to T. gondii and the causative agent of piglet coccidiosis, could provide a solution for this. In the present study an in vitro model for neonatal porcine coccidiosis in cells representative for the in vivo situation in the piglet gut was developed and evaluated. The parasite development was investigated by light and transmission electron microscopy and optimum culture conditions were evaluated. Intestinal porcine epithelial cells (IPEC-J2) adequately representing the natural host cells supported the development of all endogenous life cycle stages of I. suis, including gametocytes and oocysts. A concentration of 5% fetal calf serum in the culture medium led to highest gametocyte densities on day 12 post infection. Low infection doses (≤1 sporozoite for 100 host cells) were best for oocyst and gametocyte development. The presented system can also be used for immunostaining with established antibodies developed against T. gondii (in our case, anti-TgIMC3 antibodies directed against the inner membrane complex 3). The complete life cycle of I. suis in a cell line representing the natural host cell type and species provides a unique model among coccidian parasites and can be used to address a wide range of topics, especially with regard to the sexual development of coccidia.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23861983/pdf/?tool=EBI
spellingShingle Hanna Lucia Worliczek
Bärbel Ruttkowski
Lukas Schwarz
Kirsti Witter
Waltraud Tschulenk
Anja Joachim
Isospora suis in an epithelial cell culture system - an in vitro model for sexual development in coccidia.
PLoS ONE
title Isospora suis in an epithelial cell culture system - an in vitro model for sexual development in coccidia.
title_full Isospora suis in an epithelial cell culture system - an in vitro model for sexual development in coccidia.
title_fullStr Isospora suis in an epithelial cell culture system - an in vitro model for sexual development in coccidia.
title_full_unstemmed Isospora suis in an epithelial cell culture system - an in vitro model for sexual development in coccidia.
title_short Isospora suis in an epithelial cell culture system - an in vitro model for sexual development in coccidia.
title_sort isospora suis in an epithelial cell culture system an in vitro model for sexual development in coccidia
url https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23861983/pdf/?tool=EBI
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