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Abstract Title:

Cesarean Section Induces Microbiota-Regulated Immune Disturbances in C57BL/6 Mice.

Abstract Source:

J Immunol. 2019 Jan 1 ;202(1):142-150. Epub 2018 Nov 28. PMID: 30487172

Abstract Author(s):

Line Fisker Zachariassen, Lukasz Krych, Sara Hansborg Rasmussen, Dennis Sandris Nielsen, Witold Kot, Thomas Lindebo Holm, Axel Kornerup Hansen, Camilla Hartmann Friis Hansen

Article Affiliation:

Line Fisker Zachariassen

Abstract:

Epidemiological studies have shown that children born by cesarean section (CS) are at higher risk of developing chronic inflammatory diseases, and it has been suggested that a skewed gut microbial colonization process early in life and altered priming of the immune system are causative. The aim of this study was to clarify whether impaired regulatory immunity in CS-delivered C57BL/6 mice is dependent on gut microbiota (GM) disturbances. The GM of conventionally bred mice born by CS differed clearly from mice born by vaginal delivery. The proportion of regulatory T cells was reduced in mice born by CS, whereas the invariant NKT (iNKT) cell subset was increased compared with vaginal delivery mice. In addition, regulatory markers (,,) and macrophage markers (,,) were downregulated, whereas iNKT markers (,were upregulated in ileum of CS-delivered mice. The GM of CS-delivered mice was sufficient to transfer the shifts in immunity associated with delivery mode when inoculated into germ-free mice. Feeding a prebiotic diet reestablished gene expression of intestinal immune markers and iNKT cells in CS mice but was not sufficient to restore the level of regulatory T cells. The results support that CS delivery is associated with microbiota-mediated shifts in regulatory immunity and, therefore, provide a basis for future microbiota-directed therapeutics to infants born by CS.

Study Type : Animal Study
Additional Links
Anti Therapeutic Actions : Cesarean Delivery : CK(686) : AC(51)

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Sayer Ji
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