Cited by 45Probiotics and Fermented FoodsGut microbiota and healthDigestive system and related health

Maturation of human intestinal organoids in vitro facilitates colonization by commensal lactobacilli by reinforcing the mucus layer

Son, Ye Seul, Ki, Soo Jin, Thanavel, Rajangam, Kim, Jong‐Jin, Lee, Mi‐Ok, Kim, Janghwan, Jung, Cho‐Rok, Han, Tae‐Su +5 more·2020·The FASEB Journal

Abstract

Lactobacilli, which are probiotic commensal bacteria that mainly reside in the human small intestine, have attracted attention for their ability to exert health‐promoting effects and beneficially modulate host immunity. However, host epithelial‐commensal bacterial interactions are still largely unexplored because of limited access to human small intestinal tissues. Recently, we described an in vitro maturation technique for generating adult‐like, mature human intestinal organoids (hIOs) from human pluripotent stem cells (hPSCs) that closely resemble the in vivo tissue structure and cellular diversity. Here, we established an in vitro human model to study the response to colonization by commensal bacteria using luminal microinjection into mature hIOs, allowing for the direct examination of epithelial‐bacterial interactions. Lactobacillus reuteri and Lactobacillus plantarum were more likely to survive and colonize when microinjected into the lumen of mature hIOs than when injected into immature hIOs, as determined by scanning electron microscopy, colony formation assay, immunofluorescence, and real‐time imaging with L plantarum expressing red fluorescent protein. The improved mature hIO‐based host epithelium system resulted from enhanced intestinal epithelial integrity via upregulation of mucus secretion and tight junction proteins. Our study indicates that mature hIOs are a physiologically relevant in vitro model system for studying commensal microorganisms.

Integrity signals

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Crossref · 10.1096/fj.202000063r

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  • Functional intestinal organoids have a relatively thick mucus layer because mature goblet cells secrete mucus.

    “Furtherly, functional intestinal organoids exhibit a relatively thick mucus layer due to mucus secretion from mature goblet cells122, which can be detected by Alcian blue (AB) and periodic acid-Schiff (PAS) staining123,124.”

    From Organoids (2022) · cites this paper as [123]

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Authors
Son, Y. S., Ki, S. J., Thanavel, R., Kim, J., Lee, M., Kim, J., Jung, C., Han, T., Cho, H., Ryu, C., Kim, S., Park, D., & Son, M.
Affiliations
  • Korea Research Institute of Bioscience and Biotechnology (KR)
  • Center for Biomaterials Korea Institute of Science and Technology (KIST) Seoul Republic of Korea
  • Korea Institute of Science and Technology (KR)
Corresponding author
  • Kim, Sang‐Heon
  • Park, Doo‐Sang
  • Son, Mi‐Young
Venue
The FASEB Journal
Publisher
Wiley
Published
2020-06-30
Volume
34
Issue
8
Pages
9899-9910
ISSN
  • 0892-6638 (ISSN-L)
  • 1530-6860
OpenAlex
W3038382700
Cited by
45
References
59
Citations by year
2026: 6 · 2025: 3 · 2024: 9 · 2023: 7 · 2022: 11 · 2021: 6 · 2020: 3
FWCI
4.37
Type
journal article
Language
en
Open access
closed
Locations
  • The FASEB Journal (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Research Foundation of Korea (NRF‐2018M3A9H3023077)
  • Rural Development Administration (PJ015049)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Digestive system and related health
Keywords
human intestinal organoids, organoid maturation, Lactobacillus reuteri, Lactobacillus plantarum, bacterial colonization, mucus layer, tight junction proteins, intestinal epithelial integrity, human pluripotent stem cells, probiotics
MeSH terms
Cell Differentiation, Cells, Cultured, Humans, Intestinal Mucosa, Intestines, Lactobacillus, Organoids, Pluripotent Stem Cells, In Vitro Techniques

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