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Vertebrate reproductive science and technology
RESEARCH ARTICLE

Role of extracellular vesicles during oocyte maturation and early embryo development

A. C. F. C. M. de Ávila A and J. C. da Silveira A B
+ Author Affiliations
- Author Affiliations

A Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Avenida Duque de Caxias Norte 225, 13635-900 Pirassununga, São Paulo, Brazil.

B Corresponding author. Email: julianodasilveira@usp.br

Reproduction, Fertility and Development 32(2) 56-64 https://doi.org/10.1071/RD19389
Published: 2 December 2019

Abstract

The follicle is a dynamic microenvironment in the ovary where the oocyte develops. Intercellular communication between somatic cells and the oocyte inside the follicle is essential to generate a competent gamete. Extracellular vesicles are nanoparticles secreted by cells that mediate cell-to-cell communication in the follicle microenvironment and can be obtained from the follicular fluid. These extracellular vesicles have been studied as biomarkers and supplementation tools to mimic physiological conditions during assisted reproductive techniques because they are vehicles of bioactive molecules. Therefore, this paper reviews the importance of changes in the ovarian follicle and the effects of extracellular vesicles from follicular fluid during oocyte maturation and early embryo development. Finally, we propose that is important to consider the source of the extracellular vesicles to improve diagnostic methods and to increase in vitro embryo production.

Additional keywords: exosomes, follicle, in vitro embryo production.


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