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Plant-Derived Exosomal MicroRNAs Shape the Gut Microbiota.

Cell host & microbe | 2018

The gut microbiota can be altered by dietary interventions to prevent and treat various diseases. However, the mechanisms by which food products modulate commensals remain largely unknown. We demonstrate that plant-derived exosome-like nanoparticles (ELNs) are taken up by the gut microbiota and contain RNAs that alter microbiome composition and host physiology. Ginger ELNs (GELNs) are preferentially taken up by Lactobacillaceae in a GELN lipid-dependent manner and contain microRNAs that target various genes in Lactobacillus rhamnosus (LGG). Among these, GELN mdo-miR7267-3p-mediated targeting of the LGG monooxygenase ycnE yields increased indole-3-carboxaldehyde (I3A). GELN-RNAs or I3A, a ligand for aryl hydrocarbon receptor, are sufficient to induce production of IL-22, which is linked to barrier function improvement. These functions of GELN-RNAs can ameliorate mouse colitis via IL-22-dependent mechanisms. These findings reveal how plant products and their effects on the microbiome may be used to target specific host processes to alleviate disease.

Pubmed ID: 30449315 RIS Download

Additional research tools detected in this publication

Associated grants

  • Agency: NIAAA NIH HHS, United States
    Id: R21 AA025724
  • Agency: BLRD VA, United States
    Id: IK6 BX004199
  • Agency: NCCIH NIH HHS, United States
    Id: R01 AT008617
  • Agency: NIGMS NIH HHS, United States
    Id: P20 GM103436
  • Agency: NCATS NIH HHS, United States
    Id: UH3 TR000891
  • Agency: NIGMS NIH HHS, United States
    Id: P30 GM106396
  • Agency: BLRD VA, United States
    Id: I01 BX000962
  • Agency: NIDDK NIH HHS, United States
    Id: R01 DK115406
  • Agency: NIGMS NIH HHS, United States
    Id: P20 GM113226
  • Agency: BLRD VA, United States
    Id: I01 BX002996
  • Agency: NCATS NIH HHS, United States
    Id: UH3 TR000875
  • Agency: NIAAA NIH HHS, United States
    Id: P50 AA024337

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RRID:SCR_001905

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