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Isolation, Characterization, and Therapeutic Application of Extracellular Vesicles from Cultured Human Mesenchymal Stem Cells
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The transformative impact of extracellular vesicles on developing sperm.

Michael P Rimmer1, Christopher D Gregory2, Rod T Mitchell1

  • 1MRC Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, UK.

Reproduction & Fertility
|February 4, 2022
PubMed
Summary

Extracellular vesicles (EVs) from the male reproductive tract modify sperm function before ejaculation. These EVs are crucial for sperm development and fertility, carrying essential cargoes for post-testicular modification.

Keywords:
epididymosomesextracellular vesiclesfertilitymale reproductive tractprostasomes

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Area of Science:

  • Reproductive Biology
  • Cell Biology
  • Biochemistry

Background:

  • Sperm require post-testicular modifications for fertility after exiting the seminiferous tubules.
  • Extracellular vesicles (EVs) are key mediators of cellular communication and cargo transfer.

Purpose of the Study:

  • To review the role of extracellular vesicles (EVs) released from the male reproductive tract.
  • To investigate the impact of these EVs on sperm development and function.

Main Methods:

  • Literature review of studies on EVs in the male reproductive tract.
  • Analysis of EV interaction with sperm during transit from seminiferous tubules to ejaculation.

Main Results:

  • EVs are released from the epididymis and prostate, interacting with sperm.
  • EVs are lipid-bound particles carrying RNA, protein, and lipid cargoes essential for sperm modification.
  • These cargoes are loaded based on the parent cell's state and influence recipient sperm function.

Conclusions:

  • EV-sperm interactions are vital for post-testicular sperm modification and function.
  • While roles in the testes are less understood, EVs likely influence developing sperm.
  • Further research is needed on EV roles within the seminiferous tubules and spermatogonial stem cell niche.