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Cyclic dipeptides: from bugs to brain.

Ilaria Bellezza1, Matthew J Peirce1, Alba Minelli1

  • 1Experimental Medicine Department, Polo Unico S. Andrea delle Fratte, University of Perugia, 06124 Perugia, Italy.

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Summary
This summary is machine-generated.

Cyclic dipeptides (CDPs) regulate bacterial quorum sensing and mammalian glial cell behavior. These molecules show potential for treating inflammatory diseases by modulating glial cells and protecting neurons.

Keywords:
diketopiperazinesneurodegenerationneuroinflammationneuroprotectionquorum sensing

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Area of Science:

  • Biochemistry
  • Microbiology
  • Neuroscience

Background:

  • Cyclic dipeptides (CDPs) are evolutionarily conserved, hormone-like molecules found across species.
  • In bacteria, CDPs mediate quorum sensing (QS), controlling the switch between symbiosis and virulence.
  • In mammals, CDPs influence glial cell behavior, impacting the homeostatic-inflammatory balance.

Purpose of the Study:

  • To explore the role of cyclic dipeptides (CDPs) in inter-kingdom communication.
  • To investigate the therapeutic potential of CDPs in inflammatory and neurodegenerative diseases.

Main Methods:

  • Literature review and synthesis of existing research on cyclic dipeptides.
  • Analysis of CDP mechanisms in bacterial quorum sensing and mammalian glial cell function.

Main Results:

  • CDPs regulate bacterial population dynamics and host-pathogen interactions.
  • CDPs modulate mammalian glial cells, controlling inflammatory responses.
  • CDPs induce protective effects in neuronal cells.

Conclusions:

  • Cyclic dipeptides (CDPs) represent a conserved signaling system with dual roles in bacteria and mammals.
  • CDPs' ability to regulate inflammation and protect neurons suggests significant therapeutic potential for inflammatory diseases.