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Neutralising Effects of Different Antibodies on <i>Clostridioides difficile</i> Toxins TcdA and TcdB in a Translational Approach
Autor: Georg Csukovich, Nina Kramer, Barbara Pratscher, Ivana Gotic, Patricia Freund, Rainer Hahn, Gottfried Himmler, Sabine Brandt, Iwan Anton Burgener
Médium: | Article |
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Vydáno: | MDPI AG 2023-02-01 |
Popis
Given the high prevalence of intestinal disease in humans and animals, there is a strong need for clinically relevant models recapitulating gastrointestinal systems, ideally replacing in vivo models in accordance with the principles of the 3R. We established a canine organoid system and analysed the neutralising effects of recombinant versus natural antibodies on <i>Clostridioides difficile</i> toxins A and B in this in vitro system. Sulforhodamine B cytotoxicity assays in 2D and FITC-dextran barrier integrity assays on basal-out and apical-out organoids revealed that recombinant, but not natural antibodies, effectively neutralised <i>C. difficile</i> toxins. Our findings emphasise that canine intestinal organoids can be used to test different components and suggest that they can be further refined to also mirror complex interactions between the intestinal epithelium and other cells.