PUBLICATION

Intestinal epithelial cell-specific RARα depletion results in aberrant epithelial cell homeostasis and underdeveloped immune system

Authors
Jijon, H.B., Suarez-Lopez, L., Diaz, O.E., Das, S., De Calisto, Parada-Kusz, M., J., Yaffe, M.B., Pittet, M.J., Mora, J.R., Belkaid, Y., Xavier, R.J., Villablanca, E.J.
ID
ZDB-PUB-171117-5
Date
2017
Source
Mucosal immunology   11(3): 703-715 (Journal)
Registered Authors
Keywords
none
MeSH Terms
  • Zebrafish
  • Citrobacter rodentium/immunology*
  • Mononuclear Phagocyte System*
  • Mice
  • Animals
  • Homeostasis
  • Goblet Cells/physiology*
  • Enterobacteriaceae Infections/immunology*
  • Intestinal Mucosa/physiology*
  • Tretinoin/metabolism*
  • Mice, Inbred C57BL
  • Signal Transduction
  • Mice, Knockout
  • Pancreatitis-Associated Proteins/genetics
  • Pancreatitis-Associated Proteins/metabolism
  • Cells, Cultured
  • Cell Differentiation
  • Kruppel-Like Transcription Factors/metabolism
  • Retinoic Acid Receptor alpha/genetics
  • Retinoic Acid Receptor alpha/metabolism*
(all 20)
PubMed
29139475 Full text @ Mucosal Immunol
Abstract
Retinoic acid (RA), a dietary vitamin A metabolite, is crucial in maintaining intestinal homeostasis. RA acts on intestinal leukocytes to modulate their lineage commitment and function. Although the role of RA has been characterized in immune cells, whether intestinal epithelial cells (IECs) rely on RA signaling to exert their immune-regulatory function has not been examined. Here we demonstrate that lack of RA receptor α (RARα) signaling in IECs results in deregulated epithelial lineage specification, leading to increased numbers of goblet cells and Paneth cells. Mechanistically, lack of RARα resulted in increased KLF4+ goblet cell precursors in the distal bowel, whereas RA treatment inhibited klf4 expression and goblet cell differentiation in zebrafish. These changes in secretory cells are associated with increased Reg3g, reduced luminal bacterial detection, and an underdeveloped intestinal immune system, as evidenced by an almost complete absence of lymphoid follicles and gut resident mononuclear phagocytes. This underdeveloped intestinal immune system shows a decreased ability to clear infection with Citrobacter rodentium. Collectively, our findings indicate that epithelial cell-intrinsic RARα signaling is critical to the global development of the intestinal immune system.
Errata / Notes
This article is corrected by ZDB-PUB-220906-129 .
Genes / Markers
Figures
No images available
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping
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Citation
Jijon, H.B., Suarez-Lopez, L., Diaz, O.E., Das, S., De Calisto, Parada-Kusz, M., J., Yaffe, M.B., Pittet, M.J., Mora, J.R., Belkaid, Y., Xavier, R.J., Villablanca, E.J. (2017) Intestinal epithelial cell-specific RARα depletion results in aberrant epithelial cell homeostasis and underdeveloped immune system. Mucosal immunology. 11(3):703-715.