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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Cellular and extracellular vesicular origins of miRNAs within the bovine ovarian follicle

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Andrade, G. M. [1] ; Meirelles, F. V. [1] ; Perecin, F. [1] ; da Silveira, J. C. [1]
Total Authors: 4
[1] Univ Sao Paulo, Fac Anim Sci & Food Engn, Vet Med Dept, Pirassununga, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: REPRODUCTION IN DOMESTIC ANIMALS; v. 52, n. 6, p. 1036-1045, DEC 2017.
Web of Science Citations: 8

The ovarian follicle components must provide an ideal environment to ensure the success of reproductive processes, and communication between follicular cells is crucial to support proper oocyte growth. Recently, it has been demonstrated that the presence of extracellular vesicles (EVs) carrying microRNAs (miRNAs) in follicular fluid represents an important autocrine and paracrine communication mechanism inside the ovarian follicle. In this study, we tested the hypothesis that the miRNA content of EVs isolated from ovarian follicular (granulosa and cumulus-oocyte complexes) cell-conditioned culture media is dependent upon cell type. We initially screened bovine granulosa cells (GCs) and cumulus-oocyte complexes (COCs), as well as their derived EVs for 348 miRNAs using real-time PCR, and detected 326 miRNAs in GCs and COCs cells and 62 miRNAs in GCs and COCs EVs. A bioinformatics analysis of the identified cell-specific and differentially expressed miRNAs predicted that they likely modulate important cellular processes, including signalling pathways such as the PI3K-Akt, MAPK and Wnt pathways. By investigating the origins of miRNAs within the follicular fluid, the results of this study provide novel insights into follicular miRNA content and intercellular communication that may be of invaluable use in the context of reproductive technologies, diagnostic of ovarian-related diseases and/or the identification of biomarkers for oocyte and embryo quality. (AU)

FAPESP's process: 14/21034-3 - Intra and intercellular routes during foliculogenesis and in vivo and in vitro oocyte maturation
Grantee:Felipe Perecin
Support type: Regular Research Grants
FAPESP's process: 13/10473-3 - Role of cell-secreted vesicles in ovarian follicular fluid during oocyte maturation and their involvement in controlling epigenetic changes
Grantee:Juliano Coelho da Silveira
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 12/50533-2 - GIFT: genomic improvement of fertilization traits in Danish and Brazilian cattle
Grantee:Marcelo Fábio Gouveia Nogueira
Support type: Research Projects - Thematic Grants
FAPESP's process: 14/22887-0 - Cell-secreted vesicles containing miRNAs modulate epigenetic changes during in vitro culture of bovine gametes and embryos
Grantee:Juliano Coelho da Silveira
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 13/08135-2 - CTC - Center for Cell-Based Therapy
Grantee:Dimas Tadeu Covas
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC