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Developing a 3D intestinal epithelium model for livestock species

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Abstract

The in vitro 3D culture of intestinal epithelium is a valuable resource in the study of its function. Organoid culture exploits stem cells’ ability to regenerate and produce differentiated epithelium. Intestinal organoid models from rodent or human tissue are widely available whereas large animal models are not. Livestock enteric and zoonotic diseases elicit significant morbidity and mortality in animal and human populations. Therefore, livestock species-specific models may offer novel insights into host-pathogen interactions and disease responses. Bovine and porcine jejunum were obtained from an abattoir and their intestinal crypts isolated, suspended in Matrigel, cultured, cryopreserved and resuscitated. ‘Rounding’ of crypts occurred followed by budding and then enlargement of the organoids. Epithelial cells were characterised using immunofluorescent staining and confocal microscopy. Organoids were successfully infected with Toxoplasma gondii or Salmonella typhimurium. This 3D organoid model offers a long-term, renewable resource for investigating species-specific intestinal infections with a variety of pathogens.

Acceptance Date Aug 8, 2018
Publication Date Feb 1, 2019
Publicly Available Date Mar 29, 2024
Journal Cell and Tissue Research
Print ISSN 0302-766X
Publisher Springer Verlag
Pages 409-424
DOI https://doi.org/10.1007/s00441-018-2924-9
Keywords Organoid . Toxoplasma . Salmonella . Bovine . Porcine
Publisher URL http://doi.org/10.1007/s00441-018-2924-9

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