Journal
BMC BIOINFORMATICS
Volume 20, Issue -, Pages -Publisher
BMC
DOI: 10.1186/s12859-019-2825-2
Keywords
Ovarian follicle development; Metabolism; Metabolic communities; Secreted metabolites; Cell-type specific metabolic models; Genome-scale modeling
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Funding
- NIH/NICHD [2 U54 HD041857-07]
- NIH/NIGMS [2 T32 GM008449-16]
- Luxembourg National Research Fund (FNR) ATTRACT program grant [FNR/A12/01]
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BackgroundThe maturation of the female germ cell, the oocyte, requires the synthesis and storing of all the necessary metabolites to support multiple divisions after fertilization. Oocyte maturation is only possible in the presence of surrounding, diverse, and changing layers of somatic cells. Our understanding of metabolic interactions between the oocyte and somatic cells has been limited due to dynamic nature of ovarian follicle development, thus warranting a systems approach.ResultsHere, we developed a genome-scale metabolic model of the mouse ovarian follicle. This model was constructed using an updated mouse general metabolic model (Mouse Recon 2) and contains several key ovarian follicle development metabolic pathways. We used this model to characterize the changes in the metabolism of each follicular cell type (i.e., oocyte, granulosa cells, including cumulus and mural cells), during ovarian follicle development in vivo. Using this model, we predicted major metabolic pathways that are differentially active across multiple follicle stages. We identified a set of possible secreted and consumed metabolites that could potentially serve as biomarkers for monitoring follicle development, as well as metabolites for addition to in vitro culture media that support the growth and maturation of primordial follicles.ConclusionsOur systems approach to model follicle metabolism can guide future experimental studies to validate the model results and improve oocyte maturation approaches and support growth of primordial follicles in vitro.
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