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Systemically circulating bacterial extracellular vesicles: origin, fate, and function.

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|January 16, 2022
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Summary
This summary is machine-generated.

Bacteria release vesicles into the body that travel through the bloodstream. Understanding bacterial extracellular vesicles (BEVs) and their journey is key to uncovering their role in health and disease.

Keywords:
bacteriabacterial extracellular vesiclesbacterial membrane vesiclesbarrier dysfunctionbiomarkermicrobiomeouter membrane vesiclespermeabilitytherapy

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Area of Science:

  • Microbiology
  • Immunology
  • Physiology

Background:

  • Bacteria produce biomolecules within membrane vesicles called bacterial extracellular vesicles (BEVs).
  • Recent findings indicate that BEVs can enter the human systemic circulation.
  • BEVs represent a significant mechanism for bacterial interaction with the host.

Purpose of the Study:

  • To review the current understanding of systemically circulating BEVs.
  • To identify knowledge gaps concerning BEV origin, translocation, distribution, function, and elimination.
  • To emphasize the need for further research into BEV entry mechanisms.

Main Methods:

  • Literature review of existing research on bacterial extracellular vesicles.
  • Analysis of current knowledge on BEV circulation and host interaction.
  • Identification of research gaps in the understanding of BEV pathways.

Main Results:

  • Bacterial extracellular vesicles (BEVs) are confirmed to enter and circulate within the host's systemic circulation.
  • The pathways for BEV translocation, distribution, function, and elimination are not fully elucidated.
  • The mechanisms of BEV entry across epithelial and immune barriers remain largely unknown.

Conclusions:

  • Systemically circulating BEVs play a role in host (patho)physiology.
  • Further investigation into the translocation and entry mechanisms of BEVs is crucial.
  • Unraveling the 'occult stages' of BEV entry will reveal their broader impact on health and disease.