Campus Units

Biomedical Sciences, Veterinary Diagnostic and Production Animal Medicine

Document Type

Article

Publication Version

Published Version

Publication Date

4-17-2020

Journal or Book Title

PLoS ONE

Volume

15

Issue

4

First Page

e0231423

DOI

10.1371/journal.pone.0231423

Abstract

Recent advances in canine intestinal organoids have expanded the option for building a better in vitro model to investigate translational science of intestinal physiology and pathology between humans and animals. However, the three-dimensional geometry and the enclosed lumen of canine intestinal organoids considerably hinder the access to the apical side of epithelium for investigating the nutrient and drug absorption, host-microbiome crosstalk, and pharmaceutical toxicity testing. Thus, the creation of a polarized epithelial interface accessible from apical or basolateral side is critical. Here, we demonstrated the generation of an intestinal epithelial monolayer using canine biopsy-derived colonic organoids (colonoids). We optimized the culture condition to form an intact monolayer of the canine colonic epithelium on a nanoporous membrane insert using the canine colonoids over 14 days. Transmission and scanning electron microscopy revealed a physiological brush border interface covered by the microvilli with glycocalyx, as well as the presence of mucin granules, tight junctions, and desmosomes. The population of stem cells as well as differentiated lineage-dependent epithelial cells were verified by immunofluorescence staining and RNA in situ hybridization. The polarized expression of P-glycoprotein efflux pump was confirmed at the apical membrane. Also, the epithelial monolayer formed tight- and adherence-junctional barrier within 4 days, where the transepithelial electrical resistance and apparent permeability were inversely correlated. Hence, we verified the stable creation, maintenance, differentiation, and physiological function of a canine intestinal epithelial barrier, which can be useful for pharmaceutical and biomedical researches.

Comments

This article is published as Ambrosini, Yoko M., Yejin Park, Albert E. Jergens, Woojung Shin, Soyoun Min, Todd Atherly, Dana C. Borcherding, Jinah Jang, Karin Allenspach, Jonathan P. Mochel, and Hyun Jung Kim. "Recapitulation of the accessible interface of biopsy-derived canine intestinal organoids to study epithelial-luminal interactions." PLoS ONE 15, no. 4 (2020): e0231423. DOI: 10.1371/journal.pone.0231423. Posted with permission.

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Copyright Owner

Ambrosini et al.

Language

en

File Format

application/pdf

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