Abstract
Extracellular vesicles (EVs) refer to bilayer membrane transport vesicles secreted by cells. EVs can take macromolecules from cells and transfer them to receptor cells. Among these macromolecular substances, the most studied are microRNAs (miRNAs). miRNA is non-coding RNA involved in the regulation of gene expression. It has been confirmed that there are different non-coding RNAs in mammalian follicular fluid EVs. EVs carrying miRNA can act as an alternative mechanism for autocrine and paracrine, affecting follicular development. This paper systematically introduced the kinds, characteristics and methods of isolation and identification of EVs, focusing on the effects of EVs and miRNAs on follicular development, including early follicular development, oocyte maturation, follicular dominance and effects on granulosa cell function. At the same time, the authors prospected the future research of EVs and microRNAs in follicular fluid, and provided ideas and directions for the research and application of EVs and miRNA functions in follicular fluid.
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